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wdenk2cefd152004-02-08 22:55:38 +00001/*
wdenke65527f2004-02-12 00:47:09 +00002 * (C) Copyright 2002-2004
wdenk2cefd152004-02-08 22:55:38 +00003 * Brad Kemp, Seranoa Networks, Brad.Kemp@seranoa.com
4 *
5 * Copyright (C) 2003 Arabella Software Ltd.
6 * Yuli Barcohen <yuli@arabellasw.com>
wdenk2cefd152004-02-08 22:55:38 +00007 *
wdenke65527f2004-02-12 00:47:09 +00008 * Copyright (C) 2004
9 * Ed Okerson
Stefan Roese12797482006-11-13 13:55:24 +010010 *
11 * Copyright (C) 2006
12 * Tolunay Orkun <listmember@orkun.us>
wdenke65527f2004-02-12 00:47:09 +000013 *
Wolfgang Denkd79de1d2013-07-08 09:37:19 +020014 * SPDX-License-Identifier: GPL-2.0+
wdenk2cefd152004-02-08 22:55:38 +000015 */
16
17/* The DEBUG define must be before common to enable debugging */
wdenk2ebee312004-02-23 19:30:57 +000018/* #define DEBUG */
19
wdenk2cefd152004-02-08 22:55:38 +000020#include <common.h>
Simon Glassa73bda42015-11-08 23:47:45 -070021#include <console.h>
Thomas Chou47eae232015-11-07 14:31:08 +080022#include <dm.h>
23#include <errno.h>
24#include <fdt_support.h>
wdenk2cefd152004-02-08 22:55:38 +000025#include <asm/processor.h>
Haiying Wangc123a382007-02-21 16:52:31 +010026#include <asm/io.h>
wdenkaeba06f2004-06-09 17:34:58 +000027#include <asm/byteorder.h>
Andrew Gabbasovc1592582013-05-14 12:27:52 -050028#include <asm/unaligned.h>
wdenkd0245fc2005-04-13 10:02:42 +000029#include <environment.h>
Stefan Roese6e83e342009-10-27 15:15:55 +010030#include <mtd/cfi_flash.h>
Jens Scharsig (BuS Elektronik)287a1582012-01-27 09:29:53 +010031#include <watchdog.h>
wdenke537b3b2004-02-23 23:54:43 +000032
wdenk2cefd152004-02-08 22:55:38 +000033/*
Haavard Skinnemoend523e392007-12-13 12:56:28 +010034 * This file implements a Common Flash Interface (CFI) driver for
35 * U-Boot.
36 *
37 * The width of the port and the width of the chips are determined at
38 * initialization. These widths are used to calculate the address for
39 * access CFI data structures.
wdenk2cefd152004-02-08 22:55:38 +000040 *
41 * References
42 * JEDEC Standard JESD68 - Common Flash Interface (CFI)
43 * JEDEC Standard JEP137-A Common Flash Interface (CFI) ID Codes
44 * Intel Application Note 646 Common Flash Interface (CFI) and Command Sets
45 * Intel 290667-008 3 Volt Intel StrataFlash Memory datasheet
Stefan Roese12797482006-11-13 13:55:24 +010046 * AMD CFI Specification, Release 2.0 December 1, 2001
47 * AMD/Spansion Application Note: Migration from Single-byte to Three-byte
48 * Device IDs, Publication Number 25538 Revision A, November 8, 2001
wdenk2cefd152004-02-08 22:55:38 +000049 *
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020050 * Define CONFIG_SYS_WRITE_SWAPPED_DATA, if you have to swap the Bytes between
Heiko Schocher800db312007-01-19 18:05:26 +010051 * reading and writing ... (yes there is such a Hardware).
wdenk2cefd152004-02-08 22:55:38 +000052 */
53
Thomas Chou47eae232015-11-07 14:31:08 +080054DECLARE_GLOBAL_DATA_PTR;
55
Haavard Skinnemoend523e392007-12-13 12:56:28 +010056static uint flash_offset_cfi[2] = { FLASH_OFFSET_CFI, FLASH_OFFSET_CFI_ALT };
Mike Frysingerc2c093d2010-12-22 09:41:13 -050057#ifdef CONFIG_FLASH_CFI_MTD
Piotr Ziecik2a7493c2008-11-17 15:49:32 +010058static uint flash_verbose = 1;
Mike Frysingerc2c093d2010-12-22 09:41:13 -050059#else
60#define flash_verbose 1
61#endif
Wolfgang Denkafa0dd02006-12-27 01:26:13 +010062
Wolfgang Denk9f5fb0f2008-08-08 16:39:54 +020063flash_info_t flash_info[CFI_MAX_FLASH_BANKS]; /* FLASH chips info */
64
Stefan Roesec865e6c2006-02-28 15:29:58 +010065/*
66 * Check if chip width is defined. If not, start detecting with 8bit.
67 */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020068#ifndef CONFIG_SYS_FLASH_CFI_WIDTH
69#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_8BIT
Stefan Roesec865e6c2006-02-28 15:29:58 +010070#endif
71
Jeroen Hofstee4f517e62014-10-08 22:57:23 +020072#ifdef CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS
73#define __maybe_weak __weak
74#else
75#define __maybe_weak static
76#endif
77
Stefan Roeseab935642010-10-25 18:31:48 +020078/*
79 * 0xffff is an undefined value for the configuration register. When
80 * this value is returned, the configuration register shall not be
81 * written at all (default mode).
82 */
83static u16 cfi_flash_config_reg(int i)
84{
85#ifdef CONFIG_SYS_CFI_FLASH_CONFIG_REGS
86 return ((u16 [])CONFIG_SYS_CFI_FLASH_CONFIG_REGS)[i];
87#else
88 return 0xffff;
89#endif
90}
91
Stefan Roesefb9a7302010-08-31 10:00:10 +020092#if defined(CONFIG_SYS_MAX_FLASH_BANKS_DETECT)
93int cfi_flash_num_flash_banks = CONFIG_SYS_MAX_FLASH_BANKS_DETECT;
94#endif
95
Thomas Chou47eae232015-11-07 14:31:08 +080096#ifdef CONFIG_CFI_FLASH /* for driver model */
97static void cfi_flash_init_dm(void)
98{
99 struct udevice *dev;
100
101 cfi_flash_num_flash_banks = 0;
102 /*
103 * The uclass_first_device() will probe the first device and
104 * uclass_next_device() will probe the rest if they exist. So
105 * that cfi_flash_probe() will get called assigning the base
106 * addresses that are available.
107 */
108 for (uclass_first_device(UCLASS_MTD, &dev);
109 dev;
110 uclass_next_device(&dev)) {
111 }
112}
113
Thomas Chou47eae232015-11-07 14:31:08 +0800114phys_addr_t cfi_flash_bank_addr(int i)
115{
Marek Vasut970940f2017-09-12 19:09:08 +0200116 return flash_info[i].base;
Thomas Chou47eae232015-11-07 14:31:08 +0800117}
118#else
Jeroen Hofstee4f517e62014-10-08 22:57:23 +0200119__weak phys_addr_t cfi_flash_bank_addr(int i)
Stefan Roese7e7dda82010-08-30 10:11:51 +0200120{
121 return ((phys_addr_t [])CONFIG_SYS_FLASH_BANKS_LIST)[i];
122}
Thomas Chou47eae232015-11-07 14:31:08 +0800123#endif
Stefan Roese7e7dda82010-08-30 10:11:51 +0200124
Jeroen Hofstee4f517e62014-10-08 22:57:23 +0200125__weak unsigned long cfi_flash_bank_size(int i)
Ilya Yanok755c1802010-10-21 17:20:12 +0200126{
127#ifdef CONFIG_SYS_FLASH_BANKS_SIZES
128 return ((unsigned long [])CONFIG_SYS_FLASH_BANKS_SIZES)[i];
129#else
130 return 0;
131#endif
132}
Ilya Yanok755c1802010-10-21 17:20:12 +0200133
Jeroen Hofstee4f517e62014-10-08 22:57:23 +0200134__maybe_weak void flash_write8(u8 value, void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100135{
136 __raw_writeb(value, addr);
137}
138
Jeroen Hofstee4f517e62014-10-08 22:57:23 +0200139__maybe_weak void flash_write16(u16 value, void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100140{
141 __raw_writew(value, addr);
142}
143
Jeroen Hofstee4f517e62014-10-08 22:57:23 +0200144__maybe_weak void flash_write32(u32 value, void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100145{
146 __raw_writel(value, addr);
147}
148
Jeroen Hofstee4f517e62014-10-08 22:57:23 +0200149__maybe_weak void flash_write64(u64 value, void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100150{
151 /* No architectures currently implement __raw_writeq() */
152 *(volatile u64 *)addr = value;
153}
154
Jeroen Hofstee4f517e62014-10-08 22:57:23 +0200155__maybe_weak u8 flash_read8(void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100156{
157 return __raw_readb(addr);
158}
159
Jeroen Hofstee4f517e62014-10-08 22:57:23 +0200160__maybe_weak u16 flash_read16(void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100161{
162 return __raw_readw(addr);
163}
164
Jeroen Hofstee4f517e62014-10-08 22:57:23 +0200165__maybe_weak u32 flash_read32(void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100166{
167 return __raw_readl(addr);
168}
169
Jeroen Hofstee4f517e62014-10-08 22:57:23 +0200170__maybe_weak u64 flash_read64(void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100171{
172 /* No architectures currently implement __raw_readq() */
173 return *(volatile u64 *)addr;
174}
175
wdenk2cefd152004-02-08 22:55:38 +0000176/*-----------------------------------------------------------------------
wdenk2cefd152004-02-08 22:55:38 +0000177 */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200178#if defined(CONFIG_ENV_IS_IN_FLASH) || defined(CONFIG_ENV_ADDR_REDUND) || (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE)
Marek Vasuta26162d2017-08-20 17:20:00 +0200179static flash_info_t *flash_get_info(ulong base)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200180{
181 int i;
Masahiro Yamadac663b9a2013-05-17 14:50:37 +0900182 flash_info_t *info;
wdenk2cefd152004-02-08 22:55:38 +0000183
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200184 for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
Masahiro Yamada44049f32013-05-17 14:50:36 +0900185 info = &flash_info[i];
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200186 if (info->size && info->start[0] <= base &&
187 base <= info->start[0] + info->size - 1)
Masahiro Yamadac663b9a2013-05-17 14:50:37 +0900188 return info;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200189 }
wdenk2cefd152004-02-08 22:55:38 +0000190
Masahiro Yamadac663b9a2013-05-17 14:50:37 +0900191 return NULL;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200192}
wdenk2cefd152004-02-08 22:55:38 +0000193#endif
194
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100195unsigned long flash_sector_size(flash_info_t *info, flash_sect_t sect)
196{
197 if (sect != (info->sector_count - 1))
198 return info->start[sect + 1] - info->start[sect];
199 else
200 return info->start[0] + info->size - info->start[sect];
201}
202
wdenke65527f2004-02-12 00:47:09 +0000203/*-----------------------------------------------------------------------
204 * create an address based on the offset and the port width
205 */
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100206static inline void *
207flash_map (flash_info_t * info, flash_sect_t sect, uint offset)
wdenke65527f2004-02-12 00:47:09 +0000208{
Stefan Roese70a90b72013-04-12 19:04:54 +0200209 unsigned int byte_offset = offset * info->portwidth;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100210
Stefan Roese70a90b72013-04-12 19:04:54 +0200211 return (void *)(info->start[sect] + byte_offset);
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100212}
213
214static inline void flash_unmap(flash_info_t *info, flash_sect_t sect,
215 unsigned int offset, void *addr)
216{
wdenke65527f2004-02-12 00:47:09 +0000217}
218
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200219/*-----------------------------------------------------------------------
220 * make a proper sized command based on the port and chip widths
221 */
Sebastian Siewior7746ed82008-07-15 13:35:23 +0200222static void flash_make_cmd(flash_info_t *info, u32 cmd, void *cmdbuf)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200223{
224 int i;
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400225 int cword_offset;
226 int cp_offset;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200227#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Sebastian Siewiord528cd62008-07-16 20:04:49 +0200228 u32 cmd_le = cpu_to_le32(cmd);
229#endif
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400230 uchar val;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200231 uchar *cp = (uchar *) cmdbuf;
232
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400233 for (i = info->portwidth; i > 0; i--){
234 cword_offset = (info->portwidth-i)%info->chipwidth;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200235#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400236 cp_offset = info->portwidth - i;
Sebastian Siewiord528cd62008-07-16 20:04:49 +0200237 val = *((uchar*)&cmd_le + cword_offset);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200238#else
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400239 cp_offset = i - 1;
Sebastian Siewior7746ed82008-07-15 13:35:23 +0200240 val = *((uchar*)&cmd + sizeof(u32) - cword_offset - 1);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200241#endif
Sebastian Siewior7746ed82008-07-15 13:35:23 +0200242 cp[cp_offset] = (cword_offset >= sizeof(u32)) ? 0x00 : val;
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400243 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200244}
245
wdenk2cefd152004-02-08 22:55:38 +0000246#ifdef DEBUG
wdenke65527f2004-02-12 00:47:09 +0000247/*-----------------------------------------------------------------------
248 * Debug support
249 */
Haavard Skinnemoen670a3232007-12-13 12:56:29 +0100250static void print_longlong (char *str, unsigned long long data)
wdenk2cefd152004-02-08 22:55:38 +0000251{
252 int i;
253 char *cp;
wdenke65527f2004-02-12 00:47:09 +0000254
Wolfgang Denk49f4f6a2009-02-04 09:42:20 +0100255 cp = (char *) &data;
wdenke65527f2004-02-12 00:47:09 +0000256 for (i = 0; i < 8; i++)
257 sprintf (&str[i * 2], "%2.2x", *cp++);
wdenk2cefd152004-02-08 22:55:38 +0000258}
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200259
Haavard Skinnemoen53baec72007-12-14 15:36:16 +0100260static void flash_printqry (struct cfi_qry *qry)
wdenke65527f2004-02-12 00:47:09 +0000261{
Haavard Skinnemoen53baec72007-12-14 15:36:16 +0100262 u8 *p = (u8 *)qry;
wdenke65527f2004-02-12 00:47:09 +0000263 int x, y;
264
Haavard Skinnemoen53baec72007-12-14 15:36:16 +0100265 for (x = 0; x < sizeof(struct cfi_qry); x += 16) {
266 debug("%02x : ", x);
267 for (y = 0; y < 16; y++)
268 debug("%2.2x ", p[x + y]);
269 debug(" ");
wdenke65527f2004-02-12 00:47:09 +0000270 for (y = 0; y < 16; y++) {
Haavard Skinnemoen53baec72007-12-14 15:36:16 +0100271 unsigned char c = p[x + y];
272 if (c >= 0x20 && c <= 0x7e)
273 debug("%c", c);
274 else
275 debug(".");
wdenke65527f2004-02-12 00:47:09 +0000276 }
Haavard Skinnemoen53baec72007-12-14 15:36:16 +0100277 debug("\n");
wdenke65527f2004-02-12 00:47:09 +0000278 }
279}
wdenk2cefd152004-02-08 22:55:38 +0000280#endif
281
282
283/*-----------------------------------------------------------------------
wdenk2cefd152004-02-08 22:55:38 +0000284 * read a character at a port width address
285 */
Haavard Skinnemoen670a3232007-12-13 12:56:29 +0100286static inline uchar flash_read_uchar (flash_info_t * info, uint offset)
wdenk2cefd152004-02-08 22:55:38 +0000287{
288 uchar *cp;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100289 uchar retval;
wdenke65527f2004-02-12 00:47:09 +0000290
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100291 cp = flash_map (info, 0, offset);
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200292#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100293 retval = flash_read8(cp);
wdenke65527f2004-02-12 00:47:09 +0000294#else
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100295 retval = flash_read8(cp + info->portwidth - 1);
wdenke65527f2004-02-12 00:47:09 +0000296#endif
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100297 flash_unmap (info, 0, offset, cp);
298 return retval;
wdenk2cefd152004-02-08 22:55:38 +0000299}
300
301/*-----------------------------------------------------------------------
Tor Krill7f2a3052008-03-28 11:29:10 +0100302 * read a word at a port width address, assume 16bit bus
303 */
304static inline ushort flash_read_word (flash_info_t * info, uint offset)
305{
306 ushort *addr, retval;
307
308 addr = flash_map (info, 0, offset);
309 retval = flash_read16 (addr);
310 flash_unmap (info, 0, offset, addr);
311 return retval;
312}
313
314
315/*-----------------------------------------------------------------------
Stefan Roese12797482006-11-13 13:55:24 +0100316 * read a long word by picking the least significant byte of each maximum
wdenk2cefd152004-02-08 22:55:38 +0000317 * port size word. Swap for ppc format.
318 */
Haavard Skinnemoen670a3232007-12-13 12:56:29 +0100319static ulong flash_read_long (flash_info_t * info, flash_sect_t sect,
320 uint offset)
wdenk2cefd152004-02-08 22:55:38 +0000321{
wdenke65527f2004-02-12 00:47:09 +0000322 uchar *addr;
323 ulong retval;
324
325#ifdef DEBUG
326 int x;
327#endif
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100328 addr = flash_map (info, sect, offset);
wdenk2cefd152004-02-08 22:55:38 +0000329
wdenke65527f2004-02-12 00:47:09 +0000330#ifdef DEBUG
331 debug ("long addr is at %p info->portwidth = %d\n", addr,
332 info->portwidth);
333 for (x = 0; x < 4 * info->portwidth; x++) {
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100334 debug ("addr[%x] = 0x%x\n", x, flash_read8(addr + x));
wdenke65527f2004-02-12 00:47:09 +0000335 }
336#endif
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200337#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100338 retval = ((flash_read8(addr) << 16) |
339 (flash_read8(addr + info->portwidth) << 24) |
340 (flash_read8(addr + 2 * info->portwidth)) |
341 (flash_read8(addr + 3 * info->portwidth) << 8));
wdenke65527f2004-02-12 00:47:09 +0000342#else
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100343 retval = ((flash_read8(addr + 2 * info->portwidth - 1) << 24) |
344 (flash_read8(addr + info->portwidth - 1) << 16) |
345 (flash_read8(addr + 4 * info->portwidth - 1) << 8) |
346 (flash_read8(addr + 3 * info->portwidth - 1)));
wdenke65527f2004-02-12 00:47:09 +0000347#endif
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100348 flash_unmap(info, sect, offset, addr);
349
wdenke65527f2004-02-12 00:47:09 +0000350 return retval;
wdenk2cefd152004-02-08 22:55:38 +0000351}
352
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200353/*
354 * Write a proper sized command to the correct address
Michael Schwingen73d044d2007-12-07 23:35:02 +0100355 */
Marek Vasuta26162d2017-08-20 17:20:00 +0200356static void flash_write_cmd(flash_info_t *info, flash_sect_t sect,
357 uint offset, u32 cmd)
Michael Schwingen73d044d2007-12-07 23:35:02 +0100358{
Haavard Skinnemoend523e392007-12-13 12:56:28 +0100359
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100360 void *addr;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200361 cfiword_t cword;
Michael Schwingen73d044d2007-12-07 23:35:02 +0100362
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100363 addr = flash_map (info, sect, offset);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200364 flash_make_cmd (info, cmd, &cword);
365 switch (info->portwidth) {
366 case FLASH_CFI_8BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100367 debug ("fwc addr %p cmd %x %x 8bit x %d bit\n", addr, cmd,
Ryan Harkin316870c2015-10-23 16:50:51 +0100368 cword.w8, info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
369 flash_write8(cword.w8, addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200370 break;
371 case FLASH_CFI_16BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100372 debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr,
Ryan Harkin316870c2015-10-23 16:50:51 +0100373 cmd, cword.w16,
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200374 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Ryan Harkin316870c2015-10-23 16:50:51 +0100375 flash_write16(cword.w16, addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200376 break;
377 case FLASH_CFI_32BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100378 debug ("fwc addr %p cmd %x %8.8x 32bit x %d bit\n", addr,
379 cmd, cword.w32,
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200380 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Ryan Harkin316870c2015-10-23 16:50:51 +0100381 flash_write32(cword.w32, addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200382 break;
383 case FLASH_CFI_64BIT:
384#ifdef DEBUG
385 {
386 char str[20];
Haavard Skinnemoend523e392007-12-13 12:56:28 +0100387
Ryan Harkin316870c2015-10-23 16:50:51 +0100388 print_longlong (str, cword.w64);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200389
390 debug ("fwrite addr %p cmd %x %s 64 bit x %d bit\n",
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100391 addr, cmd, str,
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200392 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Michael Schwingen73d044d2007-12-07 23:35:02 +0100393 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200394#endif
Ryan Harkin316870c2015-10-23 16:50:51 +0100395 flash_write64(cword.w64, addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200396 break;
Michael Schwingen73d044d2007-12-07 23:35:02 +0100397 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200398
399 /* Ensure all the instructions are fully finished */
400 sync();
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100401
402 flash_unmap(info, sect, offset, addr);
Michael Schwingen73d044d2007-12-07 23:35:02 +0100403}
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200404
405static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect)
Michael Schwingen73d044d2007-12-07 23:35:02 +0100406{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200407 flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_UNLOCK_START);
408 flash_write_cmd (info, sect, info->addr_unlock2, AMD_CMD_UNLOCK_ACK);
Michael Schwingen73d044d2007-12-07 23:35:02 +0100409}
Michael Schwingen73d044d2007-12-07 23:35:02 +0100410
411/*-----------------------------------------------------------------------
wdenk2cefd152004-02-08 22:55:38 +0000412 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200413static int flash_isequal (flash_info_t * info, flash_sect_t sect,
414 uint offset, uchar cmd)
wdenk2cefd152004-02-08 22:55:38 +0000415{
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100416 void *addr;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200417 cfiword_t cword;
418 int retval;
wdenk2cefd152004-02-08 22:55:38 +0000419
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100420 addr = flash_map (info, sect, offset);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200421 flash_make_cmd (info, cmd, &cword);
Stefan Roeseefef95b2006-04-01 13:41:03 +0200422
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100423 debug ("is= cmd %x(%c) addr %p ", cmd, cmd, addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200424 switch (info->portwidth) {
425 case FLASH_CFI_8BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100426 debug ("is= %x %x\n", flash_read8(addr), cword.w8);
427 retval = (flash_read8(addr) == cword.w8);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200428 break;
429 case FLASH_CFI_16BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100430 debug ("is= %4.4x %4.4x\n", flash_read16(addr), cword.w16);
431 retval = (flash_read16(addr) == cword.w16);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200432 break;
433 case FLASH_CFI_32BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100434 debug ("is= %8.8x %8.8x\n", flash_read32(addr), cword.w32);
435 retval = (flash_read32(addr) == cword.w32);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200436 break;
437 case FLASH_CFI_64BIT:
438#ifdef DEBUG
439 {
440 char str1[20];
441 char str2[20];
Michael Schwingen73d044d2007-12-07 23:35:02 +0100442
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100443 print_longlong (str1, flash_read64(addr));
Ryan Harkin316870c2015-10-23 16:50:51 +0100444 print_longlong (str2, cword.w64);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200445 debug ("is= %s %s\n", str1, str2);
wdenk2cefd152004-02-08 22:55:38 +0000446 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200447#endif
Ryan Harkin316870c2015-10-23 16:50:51 +0100448 retval = (flash_read64(addr) == cword.w64);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200449 break;
450 default:
451 retval = 0;
452 break;
453 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100454 flash_unmap(info, sect, offset, addr);
455
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200456 return retval;
457}
Stefan Roeseefef95b2006-04-01 13:41:03 +0200458
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200459/*-----------------------------------------------------------------------
460 */
461static int flash_isset (flash_info_t * info, flash_sect_t sect,
462 uint offset, uchar cmd)
463{
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100464 void *addr;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200465 cfiword_t cword;
466 int retval;
Stefan Roeseefef95b2006-04-01 13:41:03 +0200467
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100468 addr = flash_map (info, sect, offset);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200469 flash_make_cmd (info, cmd, &cword);
470 switch (info->portwidth) {
471 case FLASH_CFI_8BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100472 retval = ((flash_read8(addr) & cword.w8) == cword.w8);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200473 break;
474 case FLASH_CFI_16BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100475 retval = ((flash_read16(addr) & cword.w16) == cword.w16);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200476 break;
477 case FLASH_CFI_32BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100478 retval = ((flash_read32(addr) & cword.w32) == cword.w32);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200479 break;
480 case FLASH_CFI_64BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100481 retval = ((flash_read64(addr) & cword.w64) == cword.w64);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200482 break;
483 default:
484 retval = 0;
485 break;
486 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100487 flash_unmap(info, sect, offset, addr);
488
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200489 return retval;
490}
Stefan Roeseefef95b2006-04-01 13:41:03 +0200491
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200492/*-----------------------------------------------------------------------
493 */
494static int flash_toggle (flash_info_t * info, flash_sect_t sect,
495 uint offset, uchar cmd)
496{
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100497 void *addr;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200498 cfiword_t cword;
499 int retval;
wdenke85b7a52004-10-10 22:16:06 +0000500
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100501 addr = flash_map (info, sect, offset);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200502 flash_make_cmd (info, cmd, &cword);
503 switch (info->portwidth) {
504 case FLASH_CFI_8BIT:
Stefan Roesecff2b492008-06-16 10:40:02 +0200505 retval = flash_read8(addr) != flash_read8(addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200506 break;
507 case FLASH_CFI_16BIT:
Stefan Roesecff2b492008-06-16 10:40:02 +0200508 retval = flash_read16(addr) != flash_read16(addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200509 break;
510 case FLASH_CFI_32BIT:
Stefan Roesecff2b492008-06-16 10:40:02 +0200511 retval = flash_read32(addr) != flash_read32(addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200512 break;
513 case FLASH_CFI_64BIT:
Wolfgang Denk600e1832008-10-31 01:12:28 +0100514 retval = ( (flash_read32( addr ) != flash_read32( addr )) ||
515 (flash_read32(addr+4) != flash_read32(addr+4)) );
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200516 break;
517 default:
518 retval = 0;
519 break;
520 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100521 flash_unmap(info, sect, offset, addr);
522
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200523 return retval;
wdenk2cefd152004-02-08 22:55:38 +0000524}
525
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200526/*
527 * flash_is_busy - check to see if the flash is busy
528 *
529 * This routine checks the status of the chip and returns true if the
530 * chip is busy.
wdenk2cefd152004-02-08 22:55:38 +0000531 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200532static int flash_is_busy (flash_info_t * info, flash_sect_t sect)
wdenk5c71a7a2005-05-16 15:23:22 +0000533{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200534 int retval;
wdenk5c71a7a2005-05-16 15:23:22 +0000535
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200536 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400537 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200538 case CFI_CMDSET_INTEL_STANDARD:
539 case CFI_CMDSET_INTEL_EXTENDED:
540 retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE);
541 break;
542 case CFI_CMDSET_AMD_STANDARD:
543 case CFI_CMDSET_AMD_EXTENDED:
544#ifdef CONFIG_FLASH_CFI_LEGACY
545 case CFI_CMDSET_AMD_LEGACY:
546#endif
Marek Vasut9b718472017-09-12 19:09:31 +0200547 if (info->sr_supported) {
548 flash_write_cmd (info, sect, info->addr_unlock1,
549 FLASH_CMD_READ_STATUS);
550 retval = !flash_isset (info, sect, 0,
551 FLASH_STATUS_DONE);
552 } else {
553 retval = flash_toggle (info, sect, 0,
554 AMD_STATUS_TOGGLE);
555 }
556
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200557 break;
558 default:
559 retval = 0;
wdenk5c71a7a2005-05-16 15:23:22 +0000560 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200561 debug ("flash_is_busy: %d\n", retval);
562 return retval;
wdenk5c71a7a2005-05-16 15:23:22 +0000563}
564
565/*-----------------------------------------------------------------------
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200566 * wait for XSR.7 to be set. Time out with an error if it does not.
567 * This routine does not set the flash to read-array mode.
wdenk5c71a7a2005-05-16 15:23:22 +0000568 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200569static int flash_status_check (flash_info_t * info, flash_sect_t sector,
570 ulong tout, char *prompt)
wdenk2cefd152004-02-08 22:55:38 +0000571{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200572 ulong start;
wdenk2cefd152004-02-08 22:55:38 +0000573
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200574#if CONFIG_SYS_HZ != 1000
Renato Andreolaac6693d2010-03-24 23:00:47 +0800575 if ((ulong)CONFIG_SYS_HZ > 100000)
576 tout *= (ulong)CONFIG_SYS_HZ / 1000; /* for a big HZ, avoid overflow */
577 else
578 tout = DIV_ROUND_UP(tout * (ulong)CONFIG_SYS_HZ, 1000);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200579#endif
wdenk2cefd152004-02-08 22:55:38 +0000580
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200581 /* Wait for command completion */
Graeme Russ13ec42b2011-07-15 02:18:56 +0000582#ifdef CONFIG_SYS_LOW_RES_TIMER
Thomas Chou4b7e6682010-04-01 11:15:05 +0800583 reset_timer();
Graeme Russ13ec42b2011-07-15 02:18:56 +0000584#endif
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200585 start = get_timer (0);
Jens Scharsig (BuS Elektronik)287a1582012-01-27 09:29:53 +0100586 WATCHDOG_RESET();
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200587 while (flash_is_busy (info, sector)) {
588 if (get_timer (start) > tout) {
589 printf ("Flash %s timeout at address %lx data %lx\n",
590 prompt, info->start[sector],
591 flash_read_long (info, sector, 0));
592 flash_write_cmd (info, sector, 0, info->cmd_reset);
Stefan Roese70a90b72013-04-12 19:04:54 +0200593 udelay(1);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200594 return ERR_TIMOUT;
wdenk2cefd152004-02-08 22:55:38 +0000595 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200596 udelay (1); /* also triggers watchdog */
wdenk2cefd152004-02-08 22:55:38 +0000597 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200598 return ERR_OK;
599}
wdenk2cefd152004-02-08 22:55:38 +0000600
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200601/*-----------------------------------------------------------------------
602 * Wait for XSR.7 to be set, if it times out print an error, otherwise
603 * do a full status check.
604 *
605 * This routine sets the flash to read-array mode.
606 */
607static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
608 ulong tout, char *prompt)
609{
610 int retcode;
wdenk2cefd152004-02-08 22:55:38 +0000611
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200612 retcode = flash_status_check (info, sector, tout, prompt);
613 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400614 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200615 case CFI_CMDSET_INTEL_EXTENDED:
616 case CFI_CMDSET_INTEL_STANDARD:
Baruch Siach9e2712d2014-09-04 12:23:09 +0300617 if ((retcode == ERR_OK)
Daniel Schwierzeck3e2fa2a2016-07-18 14:10:37 +0200618 && !flash_isset(info, sector, 0, FLASH_STATUS_DONE)) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200619 retcode = ERR_INVAL;
620 printf ("Flash %s error at address %lx\n", prompt,
621 info->start[sector]);
622 if (flash_isset (info, sector, 0, FLASH_STATUS_ECLBS |
623 FLASH_STATUS_PSLBS)) {
624 puts ("Command Sequence Error.\n");
625 } else if (flash_isset (info, sector, 0,
626 FLASH_STATUS_ECLBS)) {
627 puts ("Block Erase Error.\n");
628 retcode = ERR_NOT_ERASED;
629 } else if (flash_isset (info, sector, 0,
630 FLASH_STATUS_PSLBS)) {
631 puts ("Locking Error\n");
wdenk2cefd152004-02-08 22:55:38 +0000632 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200633 if (flash_isset (info, sector, 0, FLASH_STATUS_DPS)) {
634 puts ("Block locked.\n");
635 retcode = ERR_PROTECTED;
636 }
637 if (flash_isset (info, sector, 0, FLASH_STATUS_VPENS))
638 puts ("Vpp Low Error.\n");
wdenk2cefd152004-02-08 22:55:38 +0000639 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200640 flash_write_cmd (info, sector, 0, info->cmd_reset);
Aaron Williamsffcef2f2011-04-12 00:59:04 -0700641 udelay(1);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200642 break;
643 default:
644 break;
wdenk2cefd152004-02-08 22:55:38 +0000645 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200646 return retcode;
wdenk2cefd152004-02-08 22:55:38 +0000647}
648
Thomas Chou076767a2010-03-26 08:17:00 +0800649static int use_flash_status_poll(flash_info_t *info)
650{
651#ifdef CONFIG_SYS_CFI_FLASH_STATUS_POLL
652 if (info->vendor == CFI_CMDSET_AMD_EXTENDED ||
653 info->vendor == CFI_CMDSET_AMD_STANDARD)
654 return 1;
655#endif
656 return 0;
657}
658
659static int flash_status_poll(flash_info_t *info, void *src, void *dst,
660 ulong tout, char *prompt)
661{
662#ifdef CONFIG_SYS_CFI_FLASH_STATUS_POLL
663 ulong start;
664 int ready;
665
666#if CONFIG_SYS_HZ != 1000
667 if ((ulong)CONFIG_SYS_HZ > 100000)
668 tout *= (ulong)CONFIG_SYS_HZ / 1000; /* for a big HZ, avoid overflow */
669 else
670 tout = DIV_ROUND_UP(tout * (ulong)CONFIG_SYS_HZ, 1000);
671#endif
672
673 /* Wait for command completion */
Graeme Russ13ec42b2011-07-15 02:18:56 +0000674#ifdef CONFIG_SYS_LOW_RES_TIMER
Thomas Chou4b7e6682010-04-01 11:15:05 +0800675 reset_timer();
Graeme Russ13ec42b2011-07-15 02:18:56 +0000676#endif
Thomas Chou076767a2010-03-26 08:17:00 +0800677 start = get_timer(0);
Jens Scharsig (BuS Elektronik)287a1582012-01-27 09:29:53 +0100678 WATCHDOG_RESET();
Thomas Chou076767a2010-03-26 08:17:00 +0800679 while (1) {
680 switch (info->portwidth) {
681 case FLASH_CFI_8BIT:
682 ready = flash_read8(dst) == flash_read8(src);
683 break;
684 case FLASH_CFI_16BIT:
685 ready = flash_read16(dst) == flash_read16(src);
686 break;
687 case FLASH_CFI_32BIT:
688 ready = flash_read32(dst) == flash_read32(src);
689 break;
690 case FLASH_CFI_64BIT:
691 ready = flash_read64(dst) == flash_read64(src);
692 break;
693 default:
694 ready = 0;
695 break;
696 }
697 if (ready)
698 break;
699 if (get_timer(start) > tout) {
700 printf("Flash %s timeout at address %lx data %lx\n",
701 prompt, (ulong)dst, (ulong)flash_read8(dst));
702 return ERR_TIMOUT;
703 }
704 udelay(1); /* also triggers watchdog */
705 }
706#endif /* CONFIG_SYS_CFI_FLASH_STATUS_POLL */
707 return ERR_OK;
708}
709
wdenk2cefd152004-02-08 22:55:38 +0000710/*-----------------------------------------------------------------------
711 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200712static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
wdenk2cefd152004-02-08 22:55:38 +0000713{
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200714#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200715 unsigned short w;
716 unsigned int l;
717 unsigned long long ll;
718#endif
wdenk2cefd152004-02-08 22:55:38 +0000719
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200720 switch (info->portwidth) {
721 case FLASH_CFI_8BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100722 cword->w8 = c;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200723 break;
724 case FLASH_CFI_16BIT:
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200725#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200726 w = c;
727 w <<= 8;
Ryan Harkin316870c2015-10-23 16:50:51 +0100728 cword->w16 = (cword->w16 >> 8) | w;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200729#else
Ryan Harkin316870c2015-10-23 16:50:51 +0100730 cword->w16 = (cword->w16 << 8) | c;
Michael Schwingen73d044d2007-12-07 23:35:02 +0100731#endif
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200732 break;
733 case FLASH_CFI_32BIT:
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200734#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200735 l = c;
736 l <<= 24;
Ryan Harkin316870c2015-10-23 16:50:51 +0100737 cword->w32 = (cword->w32 >> 8) | l;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200738#else
Ryan Harkin316870c2015-10-23 16:50:51 +0100739 cword->w32 = (cword->w32 << 8) | c;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200740#endif
741 break;
742 case FLASH_CFI_64BIT:
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200743#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200744 ll = c;
745 ll <<= 56;
Ryan Harkin316870c2015-10-23 16:50:51 +0100746 cword->w64 = (cword->w64 >> 8) | ll;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200747#else
Ryan Harkin316870c2015-10-23 16:50:51 +0100748 cword->w64 = (cword->w64 << 8) | c;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200749#endif
750 break;
Stefan Roese12797482006-11-13 13:55:24 +0100751 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200752}
wdenk2cefd152004-02-08 22:55:38 +0000753
Jens Gehrlein8ee4add2008-12-16 17:25:55 +0100754/*
755 * Loop through the sector table starting from the previously found sector.
756 * Searches forwards or backwards, dependent on the passed address.
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200757 */
758static flash_sect_t find_sector (flash_info_t * info, ulong addr)
759{
Kim Phillipsd303b862012-10-29 13:34:45 +0000760 static flash_sect_t saved_sector; /* previously found sector */
Stefan Roese70a90b72013-04-12 19:04:54 +0200761 static flash_info_t *saved_info; /* previously used flash bank */
Jens Gehrlein8ee4add2008-12-16 17:25:55 +0100762 flash_sect_t sector = saved_sector;
763
Stefan Roese70a90b72013-04-12 19:04:54 +0200764 if ((info != saved_info) || (sector >= info->sector_count))
765 sector = 0;
766
Jens Gehrlein8ee4add2008-12-16 17:25:55 +0100767 while ((info->start[sector] < addr)
768 && (sector < info->sector_count - 1))
769 sector++;
770 while ((info->start[sector] > addr) && (sector > 0))
771 /*
772 * also decrements the sector in case of an overshot
773 * in the first loop
774 */
775 sector--;
wdenk2cefd152004-02-08 22:55:38 +0000776
Jens Gehrlein8ee4add2008-12-16 17:25:55 +0100777 saved_sector = sector;
Stefan Roese70a90b72013-04-12 19:04:54 +0200778 saved_info = info;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200779 return sector;
wdenk2cefd152004-02-08 22:55:38 +0000780}
781
782/*-----------------------------------------------------------------------
wdenk2cefd152004-02-08 22:55:38 +0000783 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200784static int flash_write_cfiword (flash_info_t * info, ulong dest,
785 cfiword_t cword)
wdenk2cefd152004-02-08 22:55:38 +0000786{
Becky Bruce9d1f6af2009-02-02 16:34:51 -0600787 void *dstaddr = (void *)dest;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200788 int flag;
Jens Gehrlein1e814cf2008-12-16 17:25:54 +0100789 flash_sect_t sect = 0;
790 char sect_found = 0;
wdenk2cefd152004-02-08 22:55:38 +0000791
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200792 /* Check if Flash is (sufficiently) erased */
793 switch (info->portwidth) {
794 case FLASH_CFI_8BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100795 flag = ((flash_read8(dstaddr) & cword.w8) == cword.w8);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200796 break;
797 case FLASH_CFI_16BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100798 flag = ((flash_read16(dstaddr) & cword.w16) == cword.w16);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200799 break;
800 case FLASH_CFI_32BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100801 flag = ((flash_read32(dstaddr) & cword.w32) == cword.w32);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200802 break;
803 case FLASH_CFI_64BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100804 flag = ((flash_read64(dstaddr) & cword.w64) == cword.w64);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200805 break;
806 default:
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100807 flag = 0;
808 break;
wdenk2cefd152004-02-08 22:55:38 +0000809 }
Becky Bruce9d1f6af2009-02-02 16:34:51 -0600810 if (!flag)
Stefan Roese707c1462007-12-27 07:50:54 +0100811 return ERR_NOT_ERASED;
wdenk2cefd152004-02-08 22:55:38 +0000812
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200813 /* Disable interrupts which might cause a timeout here */
814 flag = disable_interrupts ();
Stefan Roesec865e6c2006-02-28 15:29:58 +0100815
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200816 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400817 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200818 case CFI_CMDSET_INTEL_EXTENDED:
819 case CFI_CMDSET_INTEL_STANDARD:
820 flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS);
821 flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE);
822 break;
823 case CFI_CMDSET_AMD_EXTENDED:
824 case CFI_CMDSET_AMD_STANDARD:
Ed Swarthout2da14102008-10-09 01:26:36 -0500825 sect = find_sector(info, dest);
826 flash_unlock_seq (info, sect);
827 flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_WRITE);
Jens Gehrlein1e814cf2008-12-16 17:25:54 +0100828 sect_found = 1;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200829 break;
Po-Yu Chuang3f483402009-07-10 18:03:57 +0800830#ifdef CONFIG_FLASH_CFI_LEGACY
831 case CFI_CMDSET_AMD_LEGACY:
832 sect = find_sector(info, dest);
833 flash_unlock_seq (info, 0);
834 flash_write_cmd (info, 0, info->addr_unlock1, AMD_CMD_WRITE);
835 sect_found = 1;
836 break;
837#endif
wdenk2cefd152004-02-08 22:55:38 +0000838 }
839
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200840 switch (info->portwidth) {
841 case FLASH_CFI_8BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100842 flash_write8(cword.w8, dstaddr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200843 break;
844 case FLASH_CFI_16BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100845 flash_write16(cword.w16, dstaddr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200846 break;
847 case FLASH_CFI_32BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100848 flash_write32(cword.w32, dstaddr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200849 break;
850 case FLASH_CFI_64BIT:
Ryan Harkin316870c2015-10-23 16:50:51 +0100851 flash_write64(cword.w64, dstaddr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200852 break;
wdenk2cefd152004-02-08 22:55:38 +0000853 }
854
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200855 /* re-enable interrupts if necessary */
856 if (flag)
857 enable_interrupts ();
wdenk2cefd152004-02-08 22:55:38 +0000858
Jens Gehrlein1e814cf2008-12-16 17:25:54 +0100859 if (!sect_found)
860 sect = find_sector (info, dest);
861
Thomas Chou076767a2010-03-26 08:17:00 +0800862 if (use_flash_status_poll(info))
863 return flash_status_poll(info, &cword, dstaddr,
864 info->write_tout, "write");
865 else
866 return flash_full_status_check(info, sect,
867 info->write_tout, "write");
wdenk2cefd152004-02-08 22:55:38 +0000868}
869
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200870#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
wdenk2cefd152004-02-08 22:55:38 +0000871
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200872static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
873 int len)
wdenk2cefd152004-02-08 22:55:38 +0000874{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200875 flash_sect_t sector;
876 int cnt;
877 int retcode;
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100878 void *src = cp;
Stefan Roese42c6ace2009-02-05 11:25:57 +0100879 void *dst = (void *)dest;
Stefan Roese707c1462007-12-27 07:50:54 +0100880 void *dst2 = dst;
Tao Houdd3b4552012-03-15 23:33:58 +0800881 int flag = 1;
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200882 uint offset = 0;
883 unsigned int shift;
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400884 uchar write_cmd;
Stefan Roese707c1462007-12-27 07:50:54 +0100885
886 switch (info->portwidth) {
887 case FLASH_CFI_8BIT:
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200888 shift = 0;
Stefan Roese707c1462007-12-27 07:50:54 +0100889 break;
890 case FLASH_CFI_16BIT:
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200891 shift = 1;
Stefan Roese707c1462007-12-27 07:50:54 +0100892 break;
893 case FLASH_CFI_32BIT:
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200894 shift = 2;
Stefan Roese707c1462007-12-27 07:50:54 +0100895 break;
896 case FLASH_CFI_64BIT:
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200897 shift = 3;
Stefan Roese707c1462007-12-27 07:50:54 +0100898 break;
899 default:
900 retcode = ERR_INVAL;
901 goto out_unmap;
902 }
903
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200904 cnt = len >> shift;
905
Tao Houdd3b4552012-03-15 23:33:58 +0800906 while ((cnt-- > 0) && (flag == 1)) {
Stefan Roese707c1462007-12-27 07:50:54 +0100907 switch (info->portwidth) {
908 case FLASH_CFI_8BIT:
909 flag = ((flash_read8(dst2) & flash_read8(src)) ==
910 flash_read8(src));
911 src += 1, dst2 += 1;
912 break;
913 case FLASH_CFI_16BIT:
914 flag = ((flash_read16(dst2) & flash_read16(src)) ==
915 flash_read16(src));
916 src += 2, dst2 += 2;
917 break;
918 case FLASH_CFI_32BIT:
919 flag = ((flash_read32(dst2) & flash_read32(src)) ==
920 flash_read32(src));
921 src += 4, dst2 += 4;
922 break;
923 case FLASH_CFI_64BIT:
924 flag = ((flash_read64(dst2) & flash_read64(src)) ==
925 flash_read64(src));
926 src += 8, dst2 += 8;
927 break;
928 }
929 }
930 if (!flag) {
931 retcode = ERR_NOT_ERASED;
932 goto out_unmap;
933 }
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100934
Stefan Roese707c1462007-12-27 07:50:54 +0100935 src = cp;
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100936 sector = find_sector (info, dest);
wdenke65527f2004-02-12 00:47:09 +0000937
938 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400939 case CFI_CMDSET_INTEL_PROG_REGIONS:
wdenk2cefd152004-02-08 22:55:38 +0000940 case CFI_CMDSET_INTEL_STANDARD:
941 case CFI_CMDSET_INTEL_EXTENDED:
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400942 write_cmd = (info->vendor == CFI_CMDSET_INTEL_PROG_REGIONS) ?
943 FLASH_CMD_WRITE_BUFFER_PROG : FLASH_CMD_WRITE_TO_BUFFER;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200944 flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400945 flash_write_cmd (info, sector, 0, FLASH_CMD_READ_STATUS);
946 flash_write_cmd (info, sector, 0, write_cmd);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200947 retcode = flash_status_check (info, sector,
948 info->buffer_write_tout,
949 "write to buffer");
950 if (retcode == ERR_OK) {
951 /* reduce the number of loops by the width of
952 * the port */
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200953 cnt = len >> shift;
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400954 flash_write_cmd (info, sector, 0, cnt - 1);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200955 while (cnt-- > 0) {
956 switch (info->portwidth) {
957 case FLASH_CFI_8BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100958 flash_write8(flash_read8(src), dst);
959 src += 1, dst += 1;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200960 break;
961 case FLASH_CFI_16BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100962 flash_write16(flash_read16(src), dst);
963 src += 2, dst += 2;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200964 break;
965 case FLASH_CFI_32BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100966 flash_write32(flash_read32(src), dst);
967 src += 4, dst += 4;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200968 break;
969 case FLASH_CFI_64BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100970 flash_write64(flash_read64(src), dst);
971 src += 8, dst += 8;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200972 break;
973 default:
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100974 retcode = ERR_INVAL;
975 goto out_unmap;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200976 }
977 }
978 flash_write_cmd (info, sector, 0,
979 FLASH_CMD_WRITE_BUFFER_CONFIRM);
980 retcode = flash_full_status_check (
981 info, sector, info->buffer_write_tout,
982 "buffer write");
983 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100984
985 break;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200986
wdenk2cefd152004-02-08 22:55:38 +0000987 case CFI_CMDSET_AMD_STANDARD:
988 case CFI_CMDSET_AMD_EXTENDED:
Rouven Behrb0805e22016-04-10 13:38:13 +0200989 flash_unlock_seq(info, sector);
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200990
991#ifdef CONFIG_FLASH_SPANSION_S29WS_N
992 offset = ((unsigned long)dst - info->start[sector]) >> shift;
993#endif
994 flash_write_cmd(info, sector, offset, AMD_CMD_WRITE_TO_BUFFER);
995 cnt = len >> shift;
John Schmolleree355882009-08-12 10:55:47 -0500996 flash_write_cmd(info, sector, offset, cnt - 1);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200997
998 switch (info->portwidth) {
999 case FLASH_CFI_8BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +01001000 while (cnt-- > 0) {
1001 flash_write8(flash_read8(src), dst);
1002 src += 1, dst += 1;
1003 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001004 break;
1005 case FLASH_CFI_16BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +01001006 while (cnt-- > 0) {
1007 flash_write16(flash_read16(src), dst);
1008 src += 2, dst += 2;
1009 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001010 break;
1011 case FLASH_CFI_32BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +01001012 while (cnt-- > 0) {
1013 flash_write32(flash_read32(src), dst);
1014 src += 4, dst += 4;
1015 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001016 break;
1017 case FLASH_CFI_64BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +01001018 while (cnt-- > 0) {
1019 flash_write64(flash_read64(src), dst);
1020 src += 8, dst += 8;
1021 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001022 break;
1023 default:
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001024 retcode = ERR_INVAL;
1025 goto out_unmap;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001026 }
1027
1028 flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_BUFFER_CONFIRM);
Thomas Chou076767a2010-03-26 08:17:00 +08001029 if (use_flash_status_poll(info))
1030 retcode = flash_status_poll(info, src - (1 << shift),
1031 dst - (1 << shift),
1032 info->buffer_write_tout,
1033 "buffer write");
1034 else
1035 retcode = flash_full_status_check(info, sector,
1036 info->buffer_write_tout,
1037 "buffer write");
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001038 break;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001039
wdenk2cefd152004-02-08 22:55:38 +00001040 default:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001041 debug ("Unknown Command Set\n");
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001042 retcode = ERR_INVAL;
1043 break;
wdenk2cefd152004-02-08 22:55:38 +00001044 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001045
1046out_unmap:
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001047 return retcode;
wdenk2cefd152004-02-08 22:55:38 +00001048}
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001049#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001050
wdenke65527f2004-02-12 00:47:09 +00001051
wdenk2cefd152004-02-08 22:55:38 +00001052/*-----------------------------------------------------------------------
wdenk2cefd152004-02-08 22:55:38 +00001053 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001054int flash_erase (flash_info_t * info, int s_first, int s_last)
wdenk2cefd152004-02-08 22:55:38 +00001055{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001056 int rcode = 0;
1057 int prot;
1058 flash_sect_t sect;
Thomas Chou076767a2010-03-26 08:17:00 +08001059 int st;
wdenk2cefd152004-02-08 22:55:38 +00001060
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001061 if (info->flash_id != FLASH_MAN_CFI) {
1062 puts ("Can't erase unknown flash type - aborted\n");
1063 return 1;
1064 }
1065 if ((s_first < 0) || (s_first > s_last)) {
1066 puts ("- no sectors to erase\n");
1067 return 1;
1068 }
Stefan Roeseefef95b2006-04-01 13:41:03 +02001069
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001070 prot = 0;
1071 for (sect = s_first; sect <= s_last; ++sect) {
1072 if (info->protect[sect]) {
1073 prot++;
wdenk2cefd152004-02-08 22:55:38 +00001074 }
1075 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001076 if (prot) {
1077 printf ("- Warning: %d protected sectors will not be erased!\n",
1078 prot);
Piotr Ziecik2a7493c2008-11-17 15:49:32 +01001079 } else if (flash_verbose) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001080 putc ('\n');
1081 }
wdenke65527f2004-02-12 00:47:09 +00001082
wdenke65527f2004-02-12 00:47:09 +00001083
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001084 for (sect = s_first; sect <= s_last; sect++) {
Joe Hershberger497c32f2012-08-17 15:36:41 -05001085 if (ctrlc()) {
1086 printf("\n");
1087 return 1;
1088 }
1089
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001090 if (info->protect[sect] == 0) { /* not protected */
Joe Hershberger7f3c2112012-08-17 15:36:40 -05001091#ifdef CONFIG_SYS_FLASH_CHECK_BLANK_BEFORE_ERASE
1092 int k;
1093 int size;
1094 int erased;
1095 u32 *flash;
1096
1097 /*
1098 * Check if whole sector is erased
1099 */
1100 size = flash_sector_size(info, sect);
1101 erased = 1;
1102 flash = (u32 *)info->start[sect];
1103 /* divide by 4 for longword access */
1104 size = size >> 2;
1105 for (k = 0; k < size; k++) {
1106 if (flash_read32(flash++) != 0xffffffff) {
1107 erased = 0;
1108 break;
1109 }
1110 }
1111 if (erased) {
1112 if (flash_verbose)
1113 putc(',');
1114 continue;
1115 }
1116#endif
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001117 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04001118 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001119 case CFI_CMDSET_INTEL_STANDARD:
1120 case CFI_CMDSET_INTEL_EXTENDED:
1121 flash_write_cmd (info, sect, 0,
1122 FLASH_CMD_CLEAR_STATUS);
1123 flash_write_cmd (info, sect, 0,
1124 FLASH_CMD_BLOCK_ERASE);
1125 flash_write_cmd (info, sect, 0,
1126 FLASH_CMD_ERASE_CONFIRM);
1127 break;
1128 case CFI_CMDSET_AMD_STANDARD:
1129 case CFI_CMDSET_AMD_EXTENDED:
1130 flash_unlock_seq (info, sect);
1131 flash_write_cmd (info, sect,
1132 info->addr_unlock1,
1133 AMD_CMD_ERASE_START);
1134 flash_unlock_seq (info, sect);
1135 flash_write_cmd (info, sect, 0,
Angelo Dureghello7ba30282012-12-01 01:14:18 +01001136 info->cmd_erase_sector);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001137 break;
1138#ifdef CONFIG_FLASH_CFI_LEGACY
1139 case CFI_CMDSET_AMD_LEGACY:
1140 flash_unlock_seq (info, 0);
1141 flash_write_cmd (info, 0, info->addr_unlock1,
1142 AMD_CMD_ERASE_START);
1143 flash_unlock_seq (info, 0);
1144 flash_write_cmd (info, sect, 0,
1145 AMD_CMD_ERASE_SECTOR);
1146 break;
1147#endif
1148 default:
1149 debug ("Unkown flash vendor %d\n",
1150 info->vendor);
1151 break;
wdenke65527f2004-02-12 00:47:09 +00001152 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001153
Thomas Chou076767a2010-03-26 08:17:00 +08001154 if (use_flash_status_poll(info)) {
Kim Phillipsd303b862012-10-29 13:34:45 +00001155 cfiword_t cword;
Thomas Chou076767a2010-03-26 08:17:00 +08001156 void *dest;
Ryan Harkin316870c2015-10-23 16:50:51 +01001157 cword.w64 = 0xffffffffffffffffULL;
Thomas Chou076767a2010-03-26 08:17:00 +08001158 dest = flash_map(info, sect, 0);
1159 st = flash_status_poll(info, &cword, dest,
1160 info->erase_blk_tout, "erase");
1161 flash_unmap(info, sect, 0, dest);
1162 } else
1163 st = flash_full_status_check(info, sect,
1164 info->erase_blk_tout,
1165 "erase");
1166 if (st)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001167 rcode = 1;
Thomas Chou076767a2010-03-26 08:17:00 +08001168 else if (flash_verbose)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001169 putc ('.');
wdenk2cefd152004-02-08 22:55:38 +00001170 }
wdenk2cefd152004-02-08 22:55:38 +00001171 }
Piotr Ziecik2a7493c2008-11-17 15:49:32 +01001172
1173 if (flash_verbose)
1174 puts (" done\n");
1175
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001176 return rcode;
wdenk2cefd152004-02-08 22:55:38 +00001177}
wdenke65527f2004-02-12 00:47:09 +00001178
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001179#ifdef CONFIG_SYS_FLASH_EMPTY_INFO
1180static int sector_erased(flash_info_t *info, int i)
1181{
1182 int k;
1183 int size;
Stefan Roesea9153f22010-10-25 18:31:39 +02001184 u32 *flash;
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001185
1186 /*
1187 * Check if whole sector is erased
1188 */
1189 size = flash_sector_size(info, i);
Stefan Roesea9153f22010-10-25 18:31:39 +02001190 flash = (u32 *)info->start[i];
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001191 /* divide by 4 for longword access */
1192 size = size >> 2;
1193
1194 for (k = 0; k < size; k++) {
Stefan Roesea9153f22010-10-25 18:31:39 +02001195 if (flash_read32(flash++) != 0xffffffff)
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001196 return 0; /* not erased */
1197 }
1198
1199 return 1; /* erased */
1200}
1201#endif /* CONFIG_SYS_FLASH_EMPTY_INFO */
1202
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001203void flash_print_info (flash_info_t * info)
wdenk2cefd152004-02-08 22:55:38 +00001204{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001205 int i;
wdenk369d43d2004-03-14 14:09:05 +00001206
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001207 if (info->flash_id != FLASH_MAN_CFI) {
1208 puts ("missing or unknown FLASH type\n");
1209 return;
1210 }
1211
Peter Tyser0b5a2632010-12-28 18:12:05 -06001212 printf ("%s flash (%d x %d)",
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001213 info->name,
1214 (info->portwidth << 3), (info->chipwidth << 3));
1215 if (info->size < 1024*1024)
1216 printf (" Size: %ld kB in %d Sectors\n",
1217 info->size >> 10, info->sector_count);
1218 else
1219 printf (" Size: %ld MB in %d Sectors\n",
1220 info->size >> 20, info->sector_count);
1221 printf (" ");
1222 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04001223 case CFI_CMDSET_INTEL_PROG_REGIONS:
1224 printf ("Intel Prog Regions");
1225 break;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001226 case CFI_CMDSET_INTEL_STANDARD:
1227 printf ("Intel Standard");
1228 break;
1229 case CFI_CMDSET_INTEL_EXTENDED:
1230 printf ("Intel Extended");
1231 break;
1232 case CFI_CMDSET_AMD_STANDARD:
1233 printf ("AMD Standard");
1234 break;
1235 case CFI_CMDSET_AMD_EXTENDED:
1236 printf ("AMD Extended");
1237 break;
1238#ifdef CONFIG_FLASH_CFI_LEGACY
1239 case CFI_CMDSET_AMD_LEGACY:
1240 printf ("AMD Legacy");
1241 break;
wdenk369d43d2004-03-14 14:09:05 +00001242#endif
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001243 default:
1244 printf ("Unknown (%d)", info->vendor);
1245 break;
wdenk2cefd152004-02-08 22:55:38 +00001246 }
Philippe De Muyter35bc0812010-08-10 16:54:52 +02001247 printf (" command set, Manufacturer ID: 0x%02X, Device ID: 0x",
1248 info->manufacturer_id);
1249 printf (info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X",
1250 info->device_id);
Heiko Schocher27cea502011-04-11 14:16:19 +02001251 if ((info->device_id & 0xff) == 0x7E) {
1252 printf(info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X",
1253 info->device_id2);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001254 }
Stefan Roesee442a902012-12-06 15:44:12 +01001255 if ((info->vendor == CFI_CMDSET_AMD_STANDARD) && (info->legacy_unlock))
1256 printf("\n Advanced Sector Protection (PPB) enabled");
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001257 printf ("\n Erase timeout: %ld ms, write timeout: %ld ms\n",
1258 info->erase_blk_tout,
1259 info->write_tout);
1260 if (info->buffer_size > 1) {
1261 printf (" Buffer write timeout: %ld ms, "
1262 "buffer size: %d bytes\n",
1263 info->buffer_write_tout,
1264 info->buffer_size);
1265 }
wdenk2cefd152004-02-08 22:55:38 +00001266
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001267 puts ("\n Sector Start Addresses:");
1268 for (i = 0; i < info->sector_count; ++i) {
Kim Phillipsc8836f12010-07-26 18:35:39 -05001269 if (ctrlc())
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001270 break;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001271 if ((i % 5) == 0)
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001272 putc('\n');
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001273#ifdef CONFIG_SYS_FLASH_EMPTY_INFO
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001274 /* print empty and read-only info */
1275 printf (" %08lX %c %s ",
1276 info->start[i],
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001277 sector_erased(info, i) ? 'E' : ' ',
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001278 info->protect[i] ? "RO" : " ");
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001279#else /* ! CONFIG_SYS_FLASH_EMPTY_INFO */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001280 printf (" %08lX %s ",
1281 info->start[i],
1282 info->protect[i] ? "RO" : " ");
wdenke65527f2004-02-12 00:47:09 +00001283#endif
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001284 }
1285 putc ('\n');
1286 return;
wdenk2cefd152004-02-08 22:55:38 +00001287}
1288
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001289/*-----------------------------------------------------------------------
Jerry Van Barenaae73572008-03-08 13:48:01 -05001290 * This is used in a few places in write_buf() to show programming
1291 * progress. Making it a function is nasty because it needs to do side
1292 * effect updates to digit and dots. Repeated code is nasty too, so
1293 * we define it once here.
1294 */
Stefan Roese7758c162008-03-19 07:09:26 +01001295#ifdef CONFIG_FLASH_SHOW_PROGRESS
1296#define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub) \
Piotr Ziecik2a7493c2008-11-17 15:49:32 +01001297 if (flash_verbose) { \
1298 dots -= dots_sub; \
1299 if ((scale > 0) && (dots <= 0)) { \
1300 if ((digit % 5) == 0) \
1301 printf ("%d", digit / 5); \
1302 else \
1303 putc ('.'); \
1304 digit--; \
1305 dots += scale; \
1306 } \
Jerry Van Barenaae73572008-03-08 13:48:01 -05001307 }
Stefan Roese7758c162008-03-19 07:09:26 +01001308#else
1309#define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub)
1310#endif
Jerry Van Barenaae73572008-03-08 13:48:01 -05001311
1312/*-----------------------------------------------------------------------
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001313 * Copy memory to flash, returns:
1314 * 0 - OK
1315 * 1 - write timeout
1316 * 2 - Flash not erased
wdenk2cefd152004-02-08 22:55:38 +00001317 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001318int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
wdenk2cefd152004-02-08 22:55:38 +00001319{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001320 ulong wp;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001321 uchar *p;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001322 int aln;
wdenk2cefd152004-02-08 22:55:38 +00001323 cfiword_t cword;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001324 int i, rc;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001325#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001326 int buffered_size;
wdenk2cefd152004-02-08 22:55:38 +00001327#endif
Jerry Van Barenaae73572008-03-08 13:48:01 -05001328#ifdef CONFIG_FLASH_SHOW_PROGRESS
1329 int digit = CONFIG_FLASH_SHOW_PROGRESS;
1330 int scale = 0;
1331 int dots = 0;
1332
1333 /*
1334 * Suppress if there are fewer than CONFIG_FLASH_SHOW_PROGRESS writes.
1335 */
1336 if (cnt >= CONFIG_FLASH_SHOW_PROGRESS) {
1337 scale = (int)((cnt + CONFIG_FLASH_SHOW_PROGRESS - 1) /
1338 CONFIG_FLASH_SHOW_PROGRESS);
1339 }
1340#endif
1341
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001342 /* get lower aligned address */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001343 wp = (addr & ~(info->portwidth - 1));
Haiying Wangc123a382007-02-21 16:52:31 +01001344
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001345 /* handle unaligned start */
1346 if ((aln = addr - wp) != 0) {
Ryan Harkin316870c2015-10-23 16:50:51 +01001347 cword.w32 = 0;
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001348 p = (uchar *)wp;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001349 for (i = 0; i < aln; ++i)
1350 flash_add_byte (info, &cword, flash_read8(p + i));
wdenk2cefd152004-02-08 22:55:38 +00001351
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001352 for (; (i < info->portwidth) && (cnt > 0); i++) {
1353 flash_add_byte (info, &cword, *src++);
1354 cnt--;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001355 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001356 for (; (cnt == 0) && (i < info->portwidth); ++i)
1357 flash_add_byte (info, &cword, flash_read8(p + i));
1358
1359 rc = flash_write_cfiword (info, wp, cword);
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001360 if (rc != 0)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001361 return rc;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001362
1363 wp += i;
Stefan Roese7758c162008-03-19 07:09:26 +01001364 FLASH_SHOW_PROGRESS(scale, dots, digit, i);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001365 }
1366
1367 /* handle the aligned part */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001368#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001369 buffered_size = (info->portwidth / info->chipwidth);
1370 buffered_size *= info->buffer_size;
1371 while (cnt >= info->portwidth) {
1372 /* prohibit buffer write when buffer_size is 1 */
1373 if (info->buffer_size == 1) {
Ryan Harkin316870c2015-10-23 16:50:51 +01001374 cword.w32 = 0;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001375 for (i = 0; i < info->portwidth; i++)
1376 flash_add_byte (info, &cword, *src++);
1377 if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
1378 return rc;
1379 wp += info->portwidth;
1380 cnt -= info->portwidth;
1381 continue;
1382 }
1383
1384 /* write buffer until next buffered_size aligned boundary */
1385 i = buffered_size - (wp % buffered_size);
1386 if (i > cnt)
1387 i = cnt;
1388 if ((rc = flash_write_cfibuffer (info, wp, src, i)) != ERR_OK)
1389 return rc;
1390 i -= i & (info->portwidth - 1);
1391 wp += i;
1392 src += i;
1393 cnt -= i;
Stefan Roese7758c162008-03-19 07:09:26 +01001394 FLASH_SHOW_PROGRESS(scale, dots, digit, i);
Joe Hershberger497c32f2012-08-17 15:36:41 -05001395 /* Only check every once in a while */
1396 if ((cnt & 0xFFFF) < buffered_size && ctrlc())
1397 return ERR_ABORTED;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001398 }
1399#else
1400 while (cnt >= info->portwidth) {
Ryan Harkin316870c2015-10-23 16:50:51 +01001401 cword.w32 = 0;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001402 for (i = 0; i < info->portwidth; i++) {
1403 flash_add_byte (info, &cword, *src++);
1404 }
1405 if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
1406 return rc;
1407 wp += info->portwidth;
1408 cnt -= info->portwidth;
Stefan Roese7758c162008-03-19 07:09:26 +01001409 FLASH_SHOW_PROGRESS(scale, dots, digit, info->portwidth);
Joe Hershberger497c32f2012-08-17 15:36:41 -05001410 /* Only check every once in a while */
1411 if ((cnt & 0xFFFF) < info->portwidth && ctrlc())
1412 return ERR_ABORTED;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001413 }
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001414#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */
Jerry Van Barenaae73572008-03-08 13:48:01 -05001415
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001416 if (cnt == 0) {
1417 return (0);
1418 }
1419
1420 /*
1421 * handle unaligned tail bytes
1422 */
Ryan Harkin316870c2015-10-23 16:50:51 +01001423 cword.w32 = 0;
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001424 p = (uchar *)wp;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001425 for (i = 0; (i < info->portwidth) && (cnt > 0); ++i) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001426 flash_add_byte (info, &cword, *src++);
1427 --cnt;
1428 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001429 for (; i < info->portwidth; ++i)
1430 flash_add_byte (info, &cword, flash_read8(p + i));
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001431
1432 return flash_write_cfiword (info, wp, cword);
wdenk2cefd152004-02-08 22:55:38 +00001433}
wdenke65527f2004-02-12 00:47:09 +00001434
Stefan Roese92b1bca2012-12-06 15:44:09 +01001435static inline int manufact_match(flash_info_t *info, u32 manu)
1436{
1437 return info->manufacturer_id == ((manu & FLASH_VENDMASK) >> 16);
1438}
1439
wdenk2cefd152004-02-08 22:55:38 +00001440/*-----------------------------------------------------------------------
1441 */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001442#ifdef CONFIG_SYS_FLASH_PROTECTION
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001443
Holger Brunck94c302d2012-08-09 10:22:41 +02001444static int cfi_protect_bugfix(flash_info_t *info, long sector, int prot)
1445{
Stefan Roese92b1bca2012-12-06 15:44:09 +01001446 if (manufact_match(info, INTEL_MANUFACT)
Kim Phillipsd303b862012-10-29 13:34:45 +00001447 && info->device_id == NUMONYX_256MBIT) {
Holger Brunck94c302d2012-08-09 10:22:41 +02001448 /*
1449 * see errata called
1450 * "Numonyx Axcell P33/P30 Specification Update" :)
1451 */
1452 flash_write_cmd(info, sector, 0, FLASH_CMD_READ_ID);
1453 if (!flash_isequal(info, sector, FLASH_OFFSET_PROTECT,
1454 prot)) {
1455 /*
1456 * cmd must come before FLASH_CMD_PROTECT + 20us
1457 * Disable interrupts which might cause a timeout here.
1458 */
1459 int flag = disable_interrupts();
1460 unsigned short cmd;
1461
1462 if (prot)
1463 cmd = FLASH_CMD_PROTECT_SET;
1464 else
1465 cmd = FLASH_CMD_PROTECT_CLEAR;
Andre Przywara90723f62016-11-16 00:50:06 +00001466
1467 flash_write_cmd(info, sector, 0, FLASH_CMD_PROTECT);
Holger Brunck94c302d2012-08-09 10:22:41 +02001468 flash_write_cmd(info, sector, 0, cmd);
1469 /* re-enable interrupts if necessary */
1470 if (flag)
1471 enable_interrupts();
1472 }
1473 return 1;
1474 }
1475 return 0;
1476}
1477
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001478int flash_real_protect (flash_info_t * info, long sector, int prot)
wdenk2cefd152004-02-08 22:55:38 +00001479{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001480 int retcode = 0;
wdenke65527f2004-02-12 00:47:09 +00001481
Rafael Campos13d2b612008-07-31 10:22:20 +02001482 switch (info->vendor) {
1483 case CFI_CMDSET_INTEL_PROG_REGIONS:
1484 case CFI_CMDSET_INTEL_STANDARD:
Nick Spenceec81b472008-08-19 22:21:16 -07001485 case CFI_CMDSET_INTEL_EXTENDED:
Holger Brunck94c302d2012-08-09 10:22:41 +02001486 if (!cfi_protect_bugfix(info, sector, prot)) {
1487 flash_write_cmd(info, sector, 0,
1488 FLASH_CMD_CLEAR_STATUS);
1489 flash_write_cmd(info, sector, 0,
1490 FLASH_CMD_PROTECT);
Philippe De Muyterca6cd162010-08-17 18:40:25 +02001491 if (prot)
Holger Brunck94c302d2012-08-09 10:22:41 +02001492 flash_write_cmd(info, sector, 0,
1493 FLASH_CMD_PROTECT_SET);
Philippe De Muyterca6cd162010-08-17 18:40:25 +02001494 else
Holger Brunck94c302d2012-08-09 10:22:41 +02001495 flash_write_cmd(info, sector, 0,
1496 FLASH_CMD_PROTECT_CLEAR);
Philippe De Muyterca6cd162010-08-17 18:40:25 +02001497
Philippe De Muyterca6cd162010-08-17 18:40:25 +02001498 }
Rafael Campos13d2b612008-07-31 10:22:20 +02001499 break;
1500 case CFI_CMDSET_AMD_EXTENDED:
1501 case CFI_CMDSET_AMD_STANDARD:
Rafael Campos13d2b612008-07-31 10:22:20 +02001502 /* U-Boot only checks the first byte */
Stefan Roese92b1bca2012-12-06 15:44:09 +01001503 if (manufact_match(info, ATM_MANUFACT)) {
Rafael Campos13d2b612008-07-31 10:22:20 +02001504 if (prot) {
1505 flash_unlock_seq (info, 0);
1506 flash_write_cmd (info, 0,
1507 info->addr_unlock1,
1508 ATM_CMD_SOFTLOCK_START);
1509 flash_unlock_seq (info, 0);
1510 flash_write_cmd (info, sector, 0,
1511 ATM_CMD_LOCK_SECT);
1512 } else {
1513 flash_write_cmd (info, 0,
1514 info->addr_unlock1,
1515 AMD_CMD_UNLOCK_START);
1516 if (info->device_id == ATM_ID_BV6416)
1517 flash_write_cmd (info, sector,
1518 0, ATM_CMD_UNLOCK_SECT);
1519 }
1520 }
Stefan Roese7de65842012-12-06 15:44:11 +01001521 if (info->legacy_unlock) {
Anatolij Gustschin041b04f2012-08-09 08:18:12 +02001522 int flag = disable_interrupts();
1523 int lock_flag;
1524
1525 flash_unlock_seq(info, 0);
1526 flash_write_cmd(info, 0, info->addr_unlock1,
1527 AMD_CMD_SET_PPB_ENTRY);
1528 lock_flag = flash_isset(info, sector, 0, 0x01);
1529 if (prot) {
1530 if (lock_flag) {
1531 flash_write_cmd(info, sector, 0,
1532 AMD_CMD_PPB_LOCK_BC1);
1533 flash_write_cmd(info, sector, 0,
1534 AMD_CMD_PPB_LOCK_BC2);
1535 }
1536 debug("sector %ld %slocked\n", sector,
1537 lock_flag ? "" : "already ");
1538 } else {
1539 if (!lock_flag) {
1540 debug("unlock %ld\n", sector);
1541 flash_write_cmd(info, 0, 0,
1542 AMD_CMD_PPB_UNLOCK_BC1);
1543 flash_write_cmd(info, 0, 0,
1544 AMD_CMD_PPB_UNLOCK_BC2);
1545 }
1546 debug("sector %ld %sunlocked\n", sector,
1547 !lock_flag ? "" : "already ");
1548 }
1549 if (flag)
1550 enable_interrupts();
1551
1552 if (flash_status_check(info, sector,
1553 info->erase_blk_tout,
1554 prot ? "protect" : "unprotect"))
1555 printf("status check error\n");
1556
1557 flash_write_cmd(info, 0, 0,
1558 AMD_CMD_SET_PPB_EXIT_BC1);
1559 flash_write_cmd(info, 0, 0,
1560 AMD_CMD_SET_PPB_EXIT_BC2);
1561 }
Rafael Campos13d2b612008-07-31 10:22:20 +02001562 break;
TsiChung Liewb8c19292008-08-19 16:53:39 +00001563#ifdef CONFIG_FLASH_CFI_LEGACY
1564 case CFI_CMDSET_AMD_LEGACY:
1565 flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
1566 flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT);
1567 if (prot)
1568 flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET);
1569 else
1570 flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
1571#endif
Rafael Campos13d2b612008-07-31 10:22:20 +02001572 };
wdenk2cefd152004-02-08 22:55:38 +00001573
Stefan Roese5215df12010-10-25 18:31:29 +02001574 /*
1575 * Flash needs to be in status register read mode for
1576 * flash_full_status_check() to work correctly
1577 */
1578 flash_write_cmd(info, sector, 0, FLASH_CMD_READ_STATUS);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001579 if ((retcode =
1580 flash_full_status_check (info, sector, info->erase_blk_tout,
1581 prot ? "protect" : "unprotect")) == 0) {
wdenke65527f2004-02-12 00:47:09 +00001582
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001583 info->protect[sector] = prot;
1584
1585 /*
1586 * On some of Intel's flash chips (marked via legacy_unlock)
1587 * unprotect unprotects all locking.
1588 */
1589 if ((prot == 0) && (info->legacy_unlock)) {
1590 flash_sect_t i;
1591
1592 for (i = 0; i < info->sector_count; i++) {
1593 if (info->protect[i])
1594 flash_real_protect (info, i, 1);
1595 }
wdenk2cefd152004-02-08 22:55:38 +00001596 }
wdenk2cefd152004-02-08 22:55:38 +00001597 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001598 return retcode;
wdenk2cefd152004-02-08 22:55:38 +00001599}
wdenke65527f2004-02-12 00:47:09 +00001600
wdenk2cefd152004-02-08 22:55:38 +00001601/*-----------------------------------------------------------------------
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001602 * flash_read_user_serial - read the OneTimeProgramming cells
wdenk2cefd152004-02-08 22:55:38 +00001603 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001604void flash_read_user_serial (flash_info_t * info, void *buffer, int offset,
1605 int len)
wdenk2cefd152004-02-08 22:55:38 +00001606{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001607 uchar *src;
1608 uchar *dst;
wdenke65527f2004-02-12 00:47:09 +00001609
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001610 dst = buffer;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001611 src = flash_map (info, 0, FLASH_OFFSET_USER_PROTECTION);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001612 flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
1613 memcpy (dst, src + offset, len);
1614 flash_write_cmd (info, 0, 0, info->cmd_reset);
Aaron Williamsffcef2f2011-04-12 00:59:04 -07001615 udelay(1);
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001616 flash_unmap(info, 0, FLASH_OFFSET_USER_PROTECTION, src);
wdenk2cefd152004-02-08 22:55:38 +00001617}
1618
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001619/*
1620 * flash_read_factory_serial - read the device Id from the protection area
wdenk2cefd152004-02-08 22:55:38 +00001621 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001622void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset,
1623 int len)
wdenk2cefd152004-02-08 22:55:38 +00001624{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001625 uchar *src;
wdenke65527f2004-02-12 00:47:09 +00001626
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001627 src = flash_map (info, 0, FLASH_OFFSET_INTEL_PROTECTION);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001628 flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
1629 memcpy (buffer, src + offset, len);
1630 flash_write_cmd (info, 0, 0, info->cmd_reset);
Aaron Williamsffcef2f2011-04-12 00:59:04 -07001631 udelay(1);
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001632 flash_unmap(info, 0, FLASH_OFFSET_INTEL_PROTECTION, src);
wdenk2cefd152004-02-08 22:55:38 +00001633}
1634
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001635#endif /* CONFIG_SYS_FLASH_PROTECTION */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001636
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001637/*-----------------------------------------------------------------------
1638 * Reverse the order of the erase regions in the CFI QRY structure.
1639 * This is needed for chips that are either a) correctly detected as
1640 * top-boot, or b) buggy.
1641 */
1642static void cfi_reverse_geometry(struct cfi_qry *qry)
1643{
1644 unsigned int i, j;
1645 u32 tmp;
1646
1647 for (i = 0, j = qry->num_erase_regions - 1; i < j; i++, j--) {
Andrew Gabbasovc1592582013-05-14 12:27:52 -05001648 tmp = get_unaligned(&(qry->erase_region_info[i]));
1649 put_unaligned(get_unaligned(&(qry->erase_region_info[j])),
1650 &(qry->erase_region_info[i]));
1651 put_unaligned(tmp, &(qry->erase_region_info[j]));
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001652 }
1653}
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001654
wdenk2cefd152004-02-08 22:55:38 +00001655/*-----------------------------------------------------------------------
Stefan Roese12797482006-11-13 13:55:24 +01001656 * read jedec ids from device and set corresponding fields in info struct
1657 *
1658 * Note: assume cfi->vendor, cfi->portwidth and cfi->chipwidth are correct
1659 *
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001660 */
1661static void cmdset_intel_read_jedec_ids(flash_info_t *info)
1662{
1663 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
Aaron Williamsffcef2f2011-04-12 00:59:04 -07001664 udelay(1);
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001665 flash_write_cmd(info, 0, 0, FLASH_CMD_READ_ID);
1666 udelay(1000); /* some flash are slow to respond */
1667 info->manufacturer_id = flash_read_uchar (info,
1668 FLASH_OFFSET_MANUFACTURER_ID);
Philippe De Muyter35bc0812010-08-10 16:54:52 +02001669 info->device_id = (info->chipwidth == FLASH_CFI_16BIT) ?
1670 flash_read_word (info, FLASH_OFFSET_DEVICE_ID) :
1671 flash_read_uchar (info, FLASH_OFFSET_DEVICE_ID);
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001672 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
1673}
1674
1675static int cmdset_intel_init(flash_info_t *info, struct cfi_qry *qry)
1676{
1677 info->cmd_reset = FLASH_CMD_RESET;
1678
1679 cmdset_intel_read_jedec_ids(info);
1680 flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI);
1681
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001682#ifdef CONFIG_SYS_FLASH_PROTECTION
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001683 /* read legacy lock/unlock bit from intel flash */
1684 if (info->ext_addr) {
1685 info->legacy_unlock = flash_read_uchar (info,
1686 info->ext_addr + 5) & 0x08;
1687 }
1688#endif
1689
1690 return 0;
1691}
1692
1693static void cmdset_amd_read_jedec_ids(flash_info_t *info)
1694{
Niklaus Gigerf447f712009-07-22 17:13:24 +02001695 ushort bankId = 0;
1696 uchar manuId;
York Sunde067cd2017-11-18 11:09:08 -08001697 uchar feature;
Niklaus Gigerf447f712009-07-22 17:13:24 +02001698
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001699 flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
1700 flash_unlock_seq(info, 0);
1701 flash_write_cmd(info, 0, info->addr_unlock1, FLASH_CMD_READ_ID);
1702 udelay(1000); /* some flash are slow to respond */
Tor Krill7f2a3052008-03-28 11:29:10 +01001703
Niklaus Gigerf447f712009-07-22 17:13:24 +02001704 manuId = flash_read_uchar (info, FLASH_OFFSET_MANUFACTURER_ID);
1705 /* JEDEC JEP106Z specifies ID codes up to bank 7 */
1706 while (manuId == FLASH_CONTINUATION_CODE && bankId < 0x800) {
1707 bankId += 0x100;
1708 manuId = flash_read_uchar (info,
1709 bankId | FLASH_OFFSET_MANUFACTURER_ID);
1710 }
1711 info->manufacturer_id = manuId;
Tor Krill7f2a3052008-03-28 11:29:10 +01001712
York Sunde067cd2017-11-18 11:09:08 -08001713 debug("info->ext_addr = 0x%x, cfi_version = 0x%x\n",
1714 info->ext_addr, info->cfi_version);
1715 if (info->ext_addr && info->cfi_version >= 0x3134) {
1716 /* read software feature (at 0x53) */
1717 feature = flash_read_uchar(info, info->ext_addr + 0x13);
1718 debug("feature = 0x%x\n", feature);
1719 info->sr_supported = feature & 0x1;
1720 }
Marek Vasut9b718472017-09-12 19:09:31 +02001721
Tor Krill7f2a3052008-03-28 11:29:10 +01001722 switch (info->chipwidth){
1723 case FLASH_CFI_8BIT:
1724 info->device_id = flash_read_uchar (info,
1725 FLASH_OFFSET_DEVICE_ID);
1726 if (info->device_id == 0x7E) {
1727 /* AMD 3-byte (expanded) device ids */
1728 info->device_id2 = flash_read_uchar (info,
1729 FLASH_OFFSET_DEVICE_ID2);
1730 info->device_id2 <<= 8;
1731 info->device_id2 |= flash_read_uchar (info,
1732 FLASH_OFFSET_DEVICE_ID3);
1733 }
1734 break;
1735 case FLASH_CFI_16BIT:
1736 info->device_id = flash_read_word (info,
1737 FLASH_OFFSET_DEVICE_ID);
Heiko Schocher27cea502011-04-11 14:16:19 +02001738 if ((info->device_id & 0xff) == 0x7E) {
1739 /* AMD 3-byte (expanded) device ids */
1740 info->device_id2 = flash_read_uchar (info,
1741 FLASH_OFFSET_DEVICE_ID2);
1742 info->device_id2 <<= 8;
1743 info->device_id2 |= flash_read_uchar (info,
1744 FLASH_OFFSET_DEVICE_ID3);
1745 }
Tor Krill7f2a3052008-03-28 11:29:10 +01001746 break;
1747 default:
1748 break;
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001749 }
1750 flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
Aaron Williamsffcef2f2011-04-12 00:59:04 -07001751 udelay(1);
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001752}
1753
1754static int cmdset_amd_init(flash_info_t *info, struct cfi_qry *qry)
1755{
1756 info->cmd_reset = AMD_CMD_RESET;
Angelo Dureghello7ba30282012-12-01 01:14:18 +01001757 info->cmd_erase_sector = AMD_CMD_ERASE_SECTOR;
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001758
1759 cmdset_amd_read_jedec_ids(info);
1760 flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI);
1761
Anatolij Gustschin041b04f2012-08-09 08:18:12 +02001762#ifdef CONFIG_SYS_FLASH_PROTECTION
Stefan Roese7de65842012-12-06 15:44:11 +01001763 if (info->ext_addr) {
1764 /* read sector protect/unprotect scheme (at 0x49) */
1765 if (flash_read_uchar(info, info->ext_addr + 9) == 0x8)
Anatolij Gustschin041b04f2012-08-09 08:18:12 +02001766 info->legacy_unlock = 1;
1767 }
1768#endif
1769
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001770 return 0;
1771}
1772
1773#ifdef CONFIG_FLASH_CFI_LEGACY
Stefan Roese12797482006-11-13 13:55:24 +01001774static void flash_read_jedec_ids (flash_info_t * info)
1775{
1776 info->manufacturer_id = 0;
1777 info->device_id = 0;
1778 info->device_id2 = 0;
1779
1780 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04001781 case CFI_CMDSET_INTEL_PROG_REGIONS:
Stefan Roese12797482006-11-13 13:55:24 +01001782 case CFI_CMDSET_INTEL_STANDARD:
1783 case CFI_CMDSET_INTEL_EXTENDED:
Michael Schwingen5fb0aa42008-01-12 20:29:47 +01001784 cmdset_intel_read_jedec_ids(info);
Stefan Roese12797482006-11-13 13:55:24 +01001785 break;
1786 case CFI_CMDSET_AMD_STANDARD:
1787 case CFI_CMDSET_AMD_EXTENDED:
Michael Schwingen5fb0aa42008-01-12 20:29:47 +01001788 cmdset_amd_read_jedec_ids(info);
Stefan Roese12797482006-11-13 13:55:24 +01001789 break;
1790 default:
1791 break;
1792 }
1793}
1794
1795/*-----------------------------------------------------------------------
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001796 * Call board code to request info about non-CFI flash.
1797 * board_flash_get_legacy needs to fill in at least:
1798 * info->portwidth, info->chipwidth and info->interface for Jedec probing.
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001799 */
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001800static int flash_detect_legacy(phys_addr_t base, int banknum)
wdenk2cefd152004-02-08 22:55:38 +00001801{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001802 flash_info_t *info = &flash_info[banknum];
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001803
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001804 if (board_flash_get_legacy(base, banknum, info)) {
1805 /* board code may have filled info completely. If not, we
1806 use JEDEC ID probing. */
1807 if (!info->vendor) {
1808 int modes[] = {
1809 CFI_CMDSET_AMD_STANDARD,
1810 CFI_CMDSET_INTEL_STANDARD
1811 };
1812 int i;
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001813
Axel Lin85706c82013-06-23 00:56:46 +08001814 for (i = 0; i < ARRAY_SIZE(modes); i++) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001815 info->vendor = modes[i];
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001816 info->start[0] =
1817 (ulong)map_physmem(base,
Stefan Roeseb8443702009-02-05 11:44:52 +01001818 info->portwidth,
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001819 MAP_NOCACHE);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001820 if (info->portwidth == FLASH_CFI_8BIT
1821 && info->interface == FLASH_CFI_X8X16) {
1822 info->addr_unlock1 = 0x2AAA;
1823 info->addr_unlock2 = 0x5555;
1824 } else {
1825 info->addr_unlock1 = 0x5555;
1826 info->addr_unlock2 = 0x2AAA;
1827 }
1828 flash_read_jedec_ids(info);
1829 debug("JEDEC PROBE: ID %x %x %x\n",
1830 info->manufacturer_id,
1831 info->device_id,
1832 info->device_id2);
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001833 if (jedec_flash_match(info, info->start[0]))
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001834 break;
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001835 else
Stefan Roeseb8443702009-02-05 11:44:52 +01001836 unmap_physmem((void *)info->start[0],
Kuo-Jung Su7a939fe2013-07-04 11:40:36 +08001837 info->portwidth);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001838 }
1839 }
1840
1841 switch(info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04001842 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001843 case CFI_CMDSET_INTEL_STANDARD:
1844 case CFI_CMDSET_INTEL_EXTENDED:
1845 info->cmd_reset = FLASH_CMD_RESET;
1846 break;
1847 case CFI_CMDSET_AMD_STANDARD:
1848 case CFI_CMDSET_AMD_EXTENDED:
1849 case CFI_CMDSET_AMD_LEGACY:
1850 info->cmd_reset = AMD_CMD_RESET;
1851 break;
1852 }
1853 info->flash_id = FLASH_MAN_CFI;
1854 return 1;
1855 }
1856 return 0; /* use CFI */
1857}
1858#else
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001859static inline int flash_detect_legacy(phys_addr_t base, int banknum)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001860{
1861 return 0; /* use CFI */
1862}
1863#endif
1864
1865/*-----------------------------------------------------------------------
1866 * detect if flash is compatible with the Common Flash Interface (CFI)
1867 * http://www.jedec.org/download/search/jesd68.pdf
1868 */
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01001869static void flash_read_cfi (flash_info_t *info, void *buf,
1870 unsigned int start, size_t len)
1871{
1872 u8 *p = buf;
1873 unsigned int i;
1874
1875 for (i = 0; i < len; i++)
Stefan Roese70a90b72013-04-12 19:04:54 +02001876 p[i] = flash_read_uchar(info, start + i);
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01001877}
Stefan Roese6e83e342009-10-27 15:15:55 +01001878
Kim Phillipsd303b862012-10-29 13:34:45 +00001879static void __flash_cmd_reset(flash_info_t *info)
Stefan Roese6e83e342009-10-27 15:15:55 +01001880{
1881 /*
1882 * We do not yet know what kind of commandset to use, so we issue
1883 * the reset command in both Intel and AMD variants, in the hope
1884 * that AMD flash roms ignore the Intel command.
1885 */
1886 flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
Aaron Williamsffcef2f2011-04-12 00:59:04 -07001887 udelay(1);
Stefan Roese6e83e342009-10-27 15:15:55 +01001888 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
1889}
1890void flash_cmd_reset(flash_info_t *info)
1891 __attribute__((weak,alias("__flash_cmd_reset")));
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01001892
1893static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001894{
1895 int cfi_offset;
1896
Stefan Roese70a90b72013-04-12 19:04:54 +02001897 /* Issue FLASH reset command */
1898 flash_cmd_reset(info);
1899
Axel Lin85706c82013-06-23 00:56:46 +08001900 for (cfi_offset = 0; cfi_offset < ARRAY_SIZE(flash_offset_cfi);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001901 cfi_offset++) {
1902 flash_write_cmd (info, 0, flash_offset_cfi[cfi_offset],
1903 FLASH_CMD_CFI);
Stefan Roese70a90b72013-04-12 19:04:54 +02001904 if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q')
1905 && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R')
1906 && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01001907 flash_read_cfi(info, qry, FLASH_OFFSET_CFI_RESP,
1908 sizeof(struct cfi_qry));
1909 info->interface = le16_to_cpu(qry->interface_desc);
Stefan Roese70a90b72013-04-12 19:04:54 +02001910
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001911 info->cfi_offset = flash_offset_cfi[cfi_offset];
1912 debug ("device interface is %d\n",
1913 info->interface);
1914 debug ("found port %d chip %d ",
1915 info->portwidth, info->chipwidth);
1916 debug ("port %d bits chip %d bits\n",
1917 info->portwidth << CFI_FLASH_SHIFT_WIDTH,
1918 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
1919
1920 /* calculate command offsets as in the Linux driver */
Stefan Roese70a90b72013-04-12 19:04:54 +02001921 info->addr_unlock1 = 0x555;
1922 info->addr_unlock2 = 0x2aa;
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001923
1924 /*
1925 * modify the unlock address if we are
1926 * in compatibility mode
1927 */
1928 if ( /* x8/x16 in x8 mode */
1929 ((info->chipwidth == FLASH_CFI_BY8) &&
1930 (info->interface == FLASH_CFI_X8X16)) ||
1931 /* x16/x32 in x16 mode */
1932 ((info->chipwidth == FLASH_CFI_BY16) &&
1933 (info->interface == FLASH_CFI_X16X32)))
1934 {
1935 info->addr_unlock1 = 0xaaa;
1936 info->addr_unlock2 = 0x555;
1937 }
1938
1939 info->name = "CFI conformant";
1940 return 1;
1941 }
1942 }
1943
1944 return 0;
1945}
1946
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01001947static int flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001948{
wdenke65527f2004-02-12 00:47:09 +00001949 debug ("flash detect cfi\n");
wdenk2cefd152004-02-08 22:55:38 +00001950
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001951 for (info->portwidth = CONFIG_SYS_FLASH_CFI_WIDTH;
wdenke65527f2004-02-12 00:47:09 +00001952 info->portwidth <= FLASH_CFI_64BIT; info->portwidth <<= 1) {
1953 for (info->chipwidth = FLASH_CFI_BY8;
1954 info->chipwidth <= info->portwidth;
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001955 info->chipwidth <<= 1)
Stefan Roese70a90b72013-04-12 19:04:54 +02001956 if (__flash_detect_cfi(info, qry))
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001957 return 1;
wdenk2cefd152004-02-08 22:55:38 +00001958 }
wdenke65527f2004-02-12 00:47:09 +00001959 debug ("not found\n");
wdenk2cefd152004-02-08 22:55:38 +00001960 return 0;
1961}
wdenke65527f2004-02-12 00:47:09 +00001962
wdenk2cefd152004-02-08 22:55:38 +00001963/*
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01001964 * Manufacturer-specific quirks. Add workarounds for geometry
1965 * reversal, etc. here.
1966 */
1967static void flash_fixup_amd(flash_info_t *info, struct cfi_qry *qry)
1968{
1969 /* check if flash geometry needs reversal */
1970 if (qry->num_erase_regions > 1) {
1971 /* reverse geometry if top boot part */
1972 if (info->cfi_version < 0x3131) {
1973 /* CFI < 1.1, try to guess from device id */
1974 if ((info->device_id & 0x80) != 0)
1975 cfi_reverse_geometry(qry);
Stefan Roese70a90b72013-04-12 19:04:54 +02001976 } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01001977 /* CFI >= 1.1, deduct from top/bottom flag */
1978 /* note: ext_addr is valid since cfi_version > 0 */
1979 cfi_reverse_geometry(qry);
1980 }
1981 }
1982}
1983
1984static void flash_fixup_atmel(flash_info_t *info, struct cfi_qry *qry)
1985{
1986 int reverse_geometry = 0;
1987
1988 /* Check the "top boot" bit in the PRI */
1989 if (info->ext_addr && !(flash_read_uchar(info, info->ext_addr + 6) & 1))
1990 reverse_geometry = 1;
1991
1992 /* AT49BV6416(T) list the erase regions in the wrong order.
1993 * However, the device ID is identical with the non-broken
Ulf Samuelsson07f9b4e2009-03-27 23:26:43 +01001994 * AT49BV642D they differ in the high byte.
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01001995 */
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01001996 if (info->device_id == 0xd6 || info->device_id == 0xd2)
1997 reverse_geometry = !reverse_geometry;
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01001998
1999 if (reverse_geometry)
2000 cfi_reverse_geometry(qry);
2001}
2002
Richard Retanubunbe4dca22009-01-14 08:44:26 -05002003static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry)
2004{
2005 /* check if flash geometry needs reversal */
2006 if (qry->num_erase_regions > 1) {
2007 /* reverse geometry if top boot part */
2008 if (info->cfi_version < 0x3131) {
Mike Frysinger02a37862011-04-10 16:06:29 -04002009 /* CFI < 1.1, guess by device id */
2010 if (info->device_id == 0x22CA || /* M29W320DT */
2011 info->device_id == 0x2256 || /* M29W320ET */
2012 info->device_id == 0x22D7) { /* M29W800DT */
Richard Retanubunbe4dca22009-01-14 08:44:26 -05002013 cfi_reverse_geometry(qry);
2014 }
Mike Frysinger97dd8992011-05-09 18:33:36 -04002015 } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
2016 /* CFI >= 1.1, deduct from top/bottom flag */
2017 /* note: ext_addr is valid since cfi_version > 0 */
2018 cfi_reverse_geometry(qry);
Richard Retanubunbe4dca22009-01-14 08:44:26 -05002019 }
2020 }
2021}
2022
Angelo Dureghello7ba30282012-12-01 01:14:18 +01002023static void flash_fixup_sst(flash_info_t *info, struct cfi_qry *qry)
2024{
2025 /*
2026 * SST, for many recent nor parallel flashes, says they are
2027 * CFI-conformant. This is not true, since qry struct.
2028 * reports a std. AMD command set (0x0002), while SST allows to
2029 * erase two different sector sizes for the same memory.
2030 * 64KB sector (SST call it block) needs 0x30 to be erased.
2031 * 4KB sector (SST call it sector) needs 0x50 to be erased.
2032 * Since CFI query detect the 4KB number of sectors, users expects
2033 * a sector granularity of 4KB, and it is here set.
2034 */
2035 if (info->device_id == 0x5D23 || /* SST39VF3201B */
2036 info->device_id == 0x5C23) { /* SST39VF3202B */
2037 /* set sector granularity to 4KB */
2038 info->cmd_erase_sector=0x50;
2039 }
2040}
2041
Jagannadha Sutradharudu Teki130def32013-03-01 16:54:26 +05302042static void flash_fixup_num(flash_info_t *info, struct cfi_qry *qry)
2043{
2044 /*
2045 * The M29EW devices seem to report the CFI information wrong
2046 * when it's in 8 bit mode.
2047 * There's an app note from Numonyx on this issue.
2048 * So adjust the buffer size for M29EW while operating in 8-bit mode
2049 */
2050 if (((qry->max_buf_write_size) > 0x8) &&
2051 (info->device_id == 0x7E) &&
2052 (info->device_id2 == 0x2201 ||
2053 info->device_id2 == 0x2301 ||
2054 info->device_id2 == 0x2801 ||
2055 info->device_id2 == 0x4801)) {
2056 debug("Adjusted buffer size on Numonyx flash"
2057 " M29EW family in 8 bit mode\n");
2058 qry->max_buf_write_size = 0x8;
2059 }
2060}
2061
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01002062/*
wdenk2cefd152004-02-08 22:55:38 +00002063 * The following code cannot be run from FLASH!
2064 *
2065 */
Anatolij Gustschin6acb77b2010-11-28 02:13:33 +01002066ulong flash_get_size (phys_addr_t base, int banknum)
wdenk2cefd152004-02-08 22:55:38 +00002067{
wdenke65527f2004-02-12 00:47:09 +00002068 flash_info_t *info = &flash_info[banknum];
wdenk2cefd152004-02-08 22:55:38 +00002069 int i, j;
2070 flash_sect_t sect_cnt;
Becky Bruce9d1f6af2009-02-02 16:34:51 -06002071 phys_addr_t sector;
wdenk2cefd152004-02-08 22:55:38 +00002072 unsigned long tmp;
2073 int size_ratio;
2074 uchar num_erase_regions;
wdenke65527f2004-02-12 00:47:09 +00002075 int erase_region_size;
2076 int erase_region_count;
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002077 struct cfi_qry qry;
Anatolij Gustschin6acb77b2010-11-28 02:13:33 +01002078 unsigned long max_size;
Stefan Roese12797482006-11-13 13:55:24 +01002079
Kumar Gala899032b2008-05-15 15:13:08 -05002080 memset(&qry, 0, sizeof(qry));
2081
Stefan Roese12797482006-11-13 13:55:24 +01002082 info->ext_addr = 0;
2083 info->cfi_version = 0;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002084#ifdef CONFIG_SYS_FLASH_PROTECTION
Stefan Roeseefef95b2006-04-01 13:41:03 +02002085 info->legacy_unlock = 0;
2086#endif
wdenk2cefd152004-02-08 22:55:38 +00002087
Becky Bruce9d1f6af2009-02-02 16:34:51 -06002088 info->start[0] = (ulong)map_physmem(base, info->portwidth, MAP_NOCACHE);
wdenk2cefd152004-02-08 22:55:38 +00002089
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002090 if (flash_detect_cfi (info, &qry)) {
Andrew Gabbasovc1592582013-05-14 12:27:52 -05002091 info->vendor = le16_to_cpu(get_unaligned(&(qry.p_id)));
2092 info->ext_addr = le16_to_cpu(get_unaligned(&(qry.p_adr)));
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002093 num_erase_regions = qry.num_erase_regions;
2094
Stefan Roese12797482006-11-13 13:55:24 +01002095 if (info->ext_addr) {
2096 info->cfi_version = (ushort) flash_read_uchar (info,
Stefan Roese70a90b72013-04-12 19:04:54 +02002097 info->ext_addr + 3) << 8;
Stefan Roese12797482006-11-13 13:55:24 +01002098 info->cfi_version |= (ushort) flash_read_uchar (info,
Stefan Roese70a90b72013-04-12 19:04:54 +02002099 info->ext_addr + 4);
Stefan Roese12797482006-11-13 13:55:24 +01002100 }
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002101
wdenke65527f2004-02-12 00:47:09 +00002102#ifdef DEBUG
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002103 flash_printqry (&qry);
wdenke65527f2004-02-12 00:47:09 +00002104#endif
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002105
wdenke65527f2004-02-12 00:47:09 +00002106 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04002107 case CFI_CMDSET_INTEL_PROG_REGIONS:
wdenk2cefd152004-02-08 22:55:38 +00002108 case CFI_CMDSET_INTEL_STANDARD:
2109 case CFI_CMDSET_INTEL_EXTENDED:
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002110 cmdset_intel_init(info, &qry);
wdenk2cefd152004-02-08 22:55:38 +00002111 break;
2112 case CFI_CMDSET_AMD_STANDARD:
2113 case CFI_CMDSET_AMD_EXTENDED:
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002114 cmdset_amd_init(info, &qry);
wdenk2cefd152004-02-08 22:55:38 +00002115 break;
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002116 default:
2117 printf("CFI: Unknown command set 0x%x\n",
2118 info->vendor);
2119 /*
2120 * Unfortunately, this means we don't know how
2121 * to get the chip back to Read mode. Might
2122 * as well try an Intel-style reset...
2123 */
2124 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
2125 return 0;
wdenk2cefd152004-02-08 22:55:38 +00002126 }
wdenk6cfa84e2004-02-10 00:03:41 +00002127
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01002128 /* Do manufacturer-specific fixups */
2129 switch (info->manufacturer_id) {
Mario Schuknecht5c3579e2011-02-21 13:13:14 +01002130 case 0x0001: /* AMD */
2131 case 0x0037: /* AMIC */
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01002132 flash_fixup_amd(info, &qry);
2133 break;
2134 case 0x001f:
2135 flash_fixup_atmel(info, &qry);
2136 break;
Richard Retanubunbe4dca22009-01-14 08:44:26 -05002137 case 0x0020:
2138 flash_fixup_stm(info, &qry);
2139 break;
Angelo Dureghello7ba30282012-12-01 01:14:18 +01002140 case 0x00bf: /* SST */
2141 flash_fixup_sst(info, &qry);
2142 break;
Jagannadha Sutradharudu Teki130def32013-03-01 16:54:26 +05302143 case 0x0089: /* Numonyx */
2144 flash_fixup_num(info, &qry);
2145 break;
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01002146 }
2147
wdenke65527f2004-02-12 00:47:09 +00002148 debug ("manufacturer is %d\n", info->vendor);
Stefan Roese12797482006-11-13 13:55:24 +01002149 debug ("manufacturer id is 0x%x\n", info->manufacturer_id);
2150 debug ("device id is 0x%x\n", info->device_id);
2151 debug ("device id2 is 0x%x\n", info->device_id2);
2152 debug ("cfi version is 0x%04x\n", info->cfi_version);
2153
wdenk2cefd152004-02-08 22:55:38 +00002154 size_ratio = info->portwidth / info->chipwidth;
wdenke65527f2004-02-12 00:47:09 +00002155 /* if the chip is x8/x16 reduce the ratio by half */
2156 if ((info->interface == FLASH_CFI_X8X16)
2157 && (info->chipwidth == FLASH_CFI_BY8)) {
2158 size_ratio >>= 1;
2159 }
wdenke65527f2004-02-12 00:47:09 +00002160 debug ("size_ratio %d port %d bits chip %d bits\n",
2161 size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH,
2162 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Ilya Yanok755c1802010-10-21 17:20:12 +02002163 info->size = 1 << qry.dev_size;
2164 /* multiply the size by the number of chips */
2165 info->size *= size_ratio;
Anatolij Gustschin6acb77b2010-11-28 02:13:33 +01002166 max_size = cfi_flash_bank_size(banknum);
Ilya Yanok755c1802010-10-21 17:20:12 +02002167 if (max_size && (info->size > max_size)) {
2168 debug("[truncated from %ldMiB]", info->size >> 20);
2169 info->size = max_size;
2170 }
wdenke65527f2004-02-12 00:47:09 +00002171 debug ("found %d erase regions\n", num_erase_regions);
wdenk2cefd152004-02-08 22:55:38 +00002172 sect_cnt = 0;
2173 sector = base;
wdenke65527f2004-02-12 00:47:09 +00002174 for (i = 0; i < num_erase_regions; i++) {
2175 if (i > NUM_ERASE_REGIONS) {
wdenke537b3b2004-02-23 23:54:43 +00002176 printf ("%d erase regions found, only %d used\n",
2177 num_erase_regions, NUM_ERASE_REGIONS);
wdenk2cefd152004-02-08 22:55:38 +00002178 break;
2179 }
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002180
Andrew Gabbasovc1592582013-05-14 12:27:52 -05002181 tmp = le32_to_cpu(get_unaligned(
2182 &(qry.erase_region_info[i])));
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002183 debug("erase region %u: 0x%08lx\n", i, tmp);
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002184
2185 erase_region_count = (tmp & 0xffff) + 1;
2186 tmp >>= 16;
wdenke65527f2004-02-12 00:47:09 +00002187 erase_region_size =
2188 (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128;
wdenkaeba06f2004-06-09 17:34:58 +00002189 debug ("erase_region_count = %d erase_region_size = %d\n",
wdenke537b3b2004-02-23 23:54:43 +00002190 erase_region_count, erase_region_size);
wdenke65527f2004-02-12 00:47:09 +00002191 for (j = 0; j < erase_region_count; j++) {
Ilya Yanok755c1802010-10-21 17:20:12 +02002192 if (sector - base >= info->size)
2193 break;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002194 if (sect_cnt >= CONFIG_SYS_MAX_FLASH_SECT) {
Michael Schwingen73d044d2007-12-07 23:35:02 +01002195 printf("ERROR: too many flash sectors\n");
2196 break;
2197 }
Becky Bruce9d1f6af2009-02-02 16:34:51 -06002198 info->start[sect_cnt] =
2199 (ulong)map_physmem(sector,
2200 info->portwidth,
2201 MAP_NOCACHE);
wdenk2cefd152004-02-08 22:55:38 +00002202 sector += (erase_region_size * size_ratio);
wdenk26c58432005-01-09 17:12:27 +00002203
2204 /*
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002205 * Only read protection status from
2206 * supported devices (intel...)
wdenk26c58432005-01-09 17:12:27 +00002207 */
2208 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04002209 case CFI_CMDSET_INTEL_PROG_REGIONS:
wdenk26c58432005-01-09 17:12:27 +00002210 case CFI_CMDSET_INTEL_EXTENDED:
2211 case CFI_CMDSET_INTEL_STANDARD:
Stefan Roese5215df12010-10-25 18:31:29 +02002212 /*
2213 * Set flash to read-id mode. Otherwise
2214 * reading protected status is not
2215 * guaranteed.
2216 */
2217 flash_write_cmd(info, sect_cnt, 0,
2218 FLASH_CMD_READ_ID);
wdenk26c58432005-01-09 17:12:27 +00002219 info->protect[sect_cnt] =
2220 flash_isset (info, sect_cnt,
2221 FLASH_OFFSET_PROTECT,
2222 FLASH_STATUS_PROTECT);
Vasily Khoruzhickcf464002016-03-20 18:37:10 -07002223 flash_write_cmd(info, sect_cnt, 0,
2224 FLASH_CMD_RESET);
wdenk26c58432005-01-09 17:12:27 +00002225 break;
Stefan Roesebcb33442012-12-06 15:44:10 +01002226 case CFI_CMDSET_AMD_EXTENDED:
2227 case CFI_CMDSET_AMD_STANDARD:
Stefan Roese7de65842012-12-06 15:44:11 +01002228 if (!info->legacy_unlock) {
Stefan Roesebcb33442012-12-06 15:44:10 +01002229 /* default: not protected */
2230 info->protect[sect_cnt] = 0;
2231 break;
2232 }
2233
2234 /* Read protection (PPB) from sector */
2235 flash_write_cmd(info, 0, 0,
2236 info->cmd_reset);
2237 flash_unlock_seq(info, 0);
2238 flash_write_cmd(info, 0,
2239 info->addr_unlock1,
2240 FLASH_CMD_READ_ID);
2241 info->protect[sect_cnt] =
2242 flash_isset(
2243 info, sect_cnt,
2244 FLASH_OFFSET_PROTECT,
2245 FLASH_STATUS_PROTECT);
2246 break;
wdenk26c58432005-01-09 17:12:27 +00002247 default:
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002248 /* default: not protected */
2249 info->protect[sect_cnt] = 0;
wdenk26c58432005-01-09 17:12:27 +00002250 }
2251
wdenk2cefd152004-02-08 22:55:38 +00002252 sect_cnt++;
2253 }
2254 }
2255
2256 info->sector_count = sect_cnt;
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002257 info->buffer_size = 1 << le16_to_cpu(qry.max_buf_write_size);
2258 tmp = 1 << qry.block_erase_timeout_typ;
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002259 info->erase_blk_tout = tmp *
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002260 (1 << qry.block_erase_timeout_max);
2261 tmp = (1 << qry.buf_write_timeout_typ) *
2262 (1 << qry.buf_write_timeout_max);
2263
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002264 /* round up when converting to ms */
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002265 info->buffer_write_tout = (tmp + 999) / 1000;
2266 tmp = (1 << qry.word_write_timeout_typ) *
2267 (1 << qry.word_write_timeout_max);
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002268 /* round up when converting to ms */
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002269 info->write_tout = (tmp + 999) / 1000;
wdenk2cefd152004-02-08 22:55:38 +00002270 info->flash_id = FLASH_MAN_CFI;
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002271 if ((info->interface == FLASH_CFI_X8X16) &&
2272 (info->chipwidth == FLASH_CFI_BY8)) {
2273 /* XXX - Need to test on x8/x16 in parallel. */
2274 info->portwidth >>= 1;
wdenked2ac4b2004-03-14 18:23:55 +00002275 }
Mike Frysinger59404ee2008-10-02 01:55:38 -04002276
2277 flash_write_cmd (info, 0, 0, info->cmd_reset);
wdenk2cefd152004-02-08 22:55:38 +00002278 }
2279
wdenke65527f2004-02-12 00:47:09 +00002280 return (info->size);
wdenk2cefd152004-02-08 22:55:38 +00002281}
2282
Mike Frysingerc2c093d2010-12-22 09:41:13 -05002283#ifdef CONFIG_FLASH_CFI_MTD
Piotr Ziecik2a7493c2008-11-17 15:49:32 +01002284void flash_set_verbose(uint v)
2285{
2286 flash_verbose = v;
2287}
Mike Frysingerc2c093d2010-12-22 09:41:13 -05002288#endif
Piotr Ziecik2a7493c2008-11-17 15:49:32 +01002289
Stefan Roeseab935642010-10-25 18:31:48 +02002290static void cfi_flash_set_config_reg(u32 base, u16 val)
2291{
2292#ifdef CONFIG_SYS_CFI_FLASH_CONFIG_REGS
2293 /*
2294 * Only set this config register if really defined
2295 * to a valid value (0xffff is invalid)
2296 */
2297 if (val == 0xffff)
2298 return;
2299
2300 /*
2301 * Set configuration register. Data is "encrypted" in the 16 lower
2302 * address bits.
2303 */
2304 flash_write16(FLASH_CMD_SETUP, (void *)(base + (val << 1)));
2305 flash_write16(FLASH_CMD_SET_CR_CONFIRM, (void *)(base + (val << 1)));
2306
2307 /*
2308 * Finally issue reset-command to bring device back to
2309 * read-array mode
2310 */
2311 flash_write16(FLASH_CMD_RESET, (void *)base);
2312#endif
2313}
2314
wdenk2cefd152004-02-08 22:55:38 +00002315/*-----------------------------------------------------------------------
2316 */
Heiko Schocheref0946a2011-04-04 08:10:21 +02002317
Marek Vasuta26162d2017-08-20 17:20:00 +02002318static void flash_protect_default(void)
Heiko Schocheref0946a2011-04-04 08:10:21 +02002319{
Peter Tyser4f3c60d2011-04-13 11:46:56 -05002320#if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST)
2321 int i;
2322 struct apl_s {
2323 ulong start;
2324 ulong size;
2325 } apl[] = CONFIG_SYS_FLASH_AUTOPROTECT_LIST;
2326#endif
2327
Heiko Schocheref0946a2011-04-04 08:10:21 +02002328 /* Monitor protection ON by default */
2329#if (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE) && \
2330 (!defined(CONFIG_MONITOR_IS_IN_RAM))
2331 flash_protect(FLAG_PROTECT_SET,
2332 CONFIG_SYS_MONITOR_BASE,
2333 CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
2334 flash_get_info(CONFIG_SYS_MONITOR_BASE));
2335#endif
2336
2337 /* Environment protection ON by default */
2338#ifdef CONFIG_ENV_IS_IN_FLASH
2339 flash_protect(FLAG_PROTECT_SET,
2340 CONFIG_ENV_ADDR,
2341 CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
2342 flash_get_info(CONFIG_ENV_ADDR));
2343#endif
2344
2345 /* Redundant environment protection ON by default */
2346#ifdef CONFIG_ENV_ADDR_REDUND
2347 flash_protect(FLAG_PROTECT_SET,
2348 CONFIG_ENV_ADDR_REDUND,
2349 CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
2350 flash_get_info(CONFIG_ENV_ADDR_REDUND));
2351#endif
2352
2353#if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST)
Axel Lin85706c82013-06-23 00:56:46 +08002354 for (i = 0; i < ARRAY_SIZE(apl); i++) {
Marek Vasutcb1622e2011-10-21 14:17:05 +00002355 debug("autoprotecting from %08lx to %08lx\n",
Heiko Schocheref0946a2011-04-04 08:10:21 +02002356 apl[i].start, apl[i].start + apl[i].size - 1);
2357 flash_protect(FLAG_PROTECT_SET,
2358 apl[i].start,
2359 apl[i].start + apl[i].size - 1,
2360 flash_get_info(apl[i].start));
2361 }
2362#endif
2363}
2364
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002365unsigned long flash_init (void)
wdenk2cefd152004-02-08 22:55:38 +00002366{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002367 unsigned long size = 0;
2368 int i;
wdenk2cefd152004-02-08 22:55:38 +00002369
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002370#ifdef CONFIG_SYS_FLASH_PROTECTION
Eric Schumann8f7ee7d2009-03-21 09:59:34 -04002371 /* read environment from EEPROM */
2372 char s[64];
Simon Glass64b723f2017-08-03 12:22:12 -06002373 env_get_f("unlock", s, sizeof(s));
Michael Schwingen73d044d2007-12-07 23:35:02 +01002374#endif
wdenk2cefd152004-02-08 22:55:38 +00002375
Thomas Chou47eae232015-11-07 14:31:08 +08002376#ifdef CONFIG_CFI_FLASH /* for driver model */
2377 cfi_flash_init_dm();
2378#endif
2379
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002380 /* Init: no FLASHes known */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002381 for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002382 flash_info[i].flash_id = FLASH_UNKNOWN;
wdenk2cefd152004-02-08 22:55:38 +00002383
Stefan Roeseab935642010-10-25 18:31:48 +02002384 /* Optionally write flash configuration register */
2385 cfi_flash_set_config_reg(cfi_flash_bank_addr(i),
2386 cfi_flash_config_reg(i));
2387
Stefan Roese7e7dda82010-08-30 10:11:51 +02002388 if (!flash_detect_legacy(cfi_flash_bank_addr(i), i))
Anatolij Gustschin6acb77b2010-11-28 02:13:33 +01002389 flash_get_size(cfi_flash_bank_addr(i), i);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002390 size += flash_info[i].size;
2391 if (flash_info[i].flash_id == FLASH_UNKNOWN) {
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002392#ifndef CONFIG_SYS_FLASH_QUIET_TEST
Peter Tyser0b5a2632010-12-28 18:12:05 -06002393 printf ("## Unknown flash on Bank %d "
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002394 "- Size = 0x%08lx = %ld MB\n",
2395 i+1, flash_info[i].size,
John Schmoller61665db2010-09-29 13:49:05 -05002396 flash_info[i].size >> 20);
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002397#endif /* CONFIG_SYS_FLASH_QUIET_TEST */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002398 }
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002399#ifdef CONFIG_SYS_FLASH_PROTECTION
Jeroen Hofstee5a85e892014-06-17 22:47:31 +02002400 else if (strcmp(s, "yes") == 0) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002401 /*
2402 * Only the U-Boot image and it's environment
2403 * is protected, all other sectors are
2404 * unprotected (unlocked) if flash hardware
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002405 * protection is used (CONFIG_SYS_FLASH_PROTECTION)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002406 * and the environment variable "unlock" is
2407 * set to "yes".
2408 */
2409 if (flash_info[i].legacy_unlock) {
2410 int k;
wdenk2cefd152004-02-08 22:55:38 +00002411
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002412 /*
2413 * Disable legacy_unlock temporarily,
2414 * since flash_real_protect would
2415 * relock all other sectors again
2416 * otherwise.
2417 */
2418 flash_info[i].legacy_unlock = 0;
wdenk2cefd152004-02-08 22:55:38 +00002419
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002420 /*
2421 * Legacy unlocking (e.g. Intel J3) ->
2422 * unlock only one sector. This will
2423 * unlock all sectors.
2424 */
2425 flash_real_protect (&flash_info[i], 0, 0);
wdenk2cefd152004-02-08 22:55:38 +00002426
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002427 flash_info[i].legacy_unlock = 1;
wdenk2cefd152004-02-08 22:55:38 +00002428
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002429 /*
2430 * Manually mark other sectors as
2431 * unlocked (unprotected)
2432 */
2433 for (k = 1; k < flash_info[i].sector_count; k++)
2434 flash_info[i].protect[k] = 0;
2435 } else {
2436 /*
2437 * No legancy unlocking -> unlock all sectors
2438 */
2439 flash_protect (FLAG_PROTECT_CLEAR,
2440 flash_info[i].start[0],
2441 flash_info[i].start[0]
2442 + flash_info[i].size - 1,
2443 &flash_info[i]);
Stefan Roesec865e6c2006-02-28 15:29:58 +01002444 }
Stefan Roesec865e6c2006-02-28 15:29:58 +01002445 }
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002446#endif /* CONFIG_SYS_FLASH_PROTECTION */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002447 }
Stefan Roesec865e6c2006-02-28 15:29:58 +01002448
Heiko Schocheref0946a2011-04-04 08:10:21 +02002449 flash_protect_default();
Piotr Ziecik3e939e92008-11-17 15:57:58 +01002450#ifdef CONFIG_FLASH_CFI_MTD
2451 cfi_mtd_init();
2452#endif
2453
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002454 return (size);
wdenk2cefd152004-02-08 22:55:38 +00002455}
Thomas Chou47eae232015-11-07 14:31:08 +08002456
2457#ifdef CONFIG_CFI_FLASH /* for driver model */
2458static int cfi_flash_probe(struct udevice *dev)
2459{
2460 void *blob = (void *)gd->fdt_blob;
Simon Glassdd79d6e2017-01-17 16:52:55 -07002461 int node = dev_of_offset(dev);
Thomas Chou47eae232015-11-07 14:31:08 +08002462 const fdt32_t *cell;
2463 phys_addr_t addr;
2464 int parent, addrc, sizec;
2465 int len, idx;
2466
2467 parent = fdt_parent_offset(blob, node);
Simon Glassbb7c01e2017-05-18 20:09:26 -06002468 fdt_support_default_count_cells(blob, parent, &addrc, &sizec);
Thomas Chou47eae232015-11-07 14:31:08 +08002469 /* decode regs, there may be multiple reg tuples. */
2470 cell = fdt_getprop(blob, node, "reg", &len);
2471 if (!cell)
2472 return -ENOENT;
2473 idx = 0;
2474 len /= sizeof(fdt32_t);
2475 while (idx < len) {
2476 addr = fdt_translate_address((void *)blob,
2477 node, cell + idx);
Marek Vasut970940f2017-09-12 19:09:08 +02002478 flash_info[cfi_flash_num_flash_banks].dev = dev;
2479 flash_info[cfi_flash_num_flash_banks].base = addr;
2480 cfi_flash_num_flash_banks++;
Thomas Chou47eae232015-11-07 14:31:08 +08002481 idx += addrc + sizec;
2482 }
Marek Vasut970940f2017-09-12 19:09:08 +02002483 gd->bd->bi_flashstart = flash_info[0].base;
Thomas Chou47eae232015-11-07 14:31:08 +08002484
2485 return 0;
2486}
2487
2488static const struct udevice_id cfi_flash_ids[] = {
2489 { .compatible = "cfi-flash" },
2490 { .compatible = "jedec-flash" },
2491 {}
2492};
2493
2494U_BOOT_DRIVER(cfi_flash) = {
2495 .name = "cfi_flash",
2496 .id = UCLASS_MTD,
2497 .of_match = cfi_flash_ids,
2498 .probe = cfi_flash_probe,
2499};
2500#endif /* CONFIG_CFI_FLASH */