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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>
21#include <asm/processor.h>
Haiying Wangc123a382007-02-21 16:52:31 +010022#include <asm/io.h>
wdenkaeba06f2004-06-09 17:34:58 +000023#include <asm/byteorder.h>
Andrew Gabbasovc1592582013-05-14 12:27:52 -050024#include <asm/unaligned.h>
wdenkd0245fc2005-04-13 10:02:42 +000025#include <environment.h>
Stefan Roese6e83e342009-10-27 15:15:55 +010026#include <mtd/cfi_flash.h>
Jens Scharsig (BuS Elektronik)287a1582012-01-27 09:29:53 +010027#include <watchdog.h>
wdenke537b3b2004-02-23 23:54:43 +000028
wdenk2cefd152004-02-08 22:55:38 +000029/*
Haavard Skinnemoend523e392007-12-13 12:56:28 +010030 * This file implements a Common Flash Interface (CFI) driver for
31 * U-Boot.
32 *
33 * The width of the port and the width of the chips are determined at
34 * initialization. These widths are used to calculate the address for
35 * access CFI data structures.
wdenk2cefd152004-02-08 22:55:38 +000036 *
37 * References
38 * JEDEC Standard JESD68 - Common Flash Interface (CFI)
39 * JEDEC Standard JEP137-A Common Flash Interface (CFI) ID Codes
40 * Intel Application Note 646 Common Flash Interface (CFI) and Command Sets
41 * Intel 290667-008 3 Volt Intel StrataFlash Memory datasheet
Stefan Roese12797482006-11-13 13:55:24 +010042 * AMD CFI Specification, Release 2.0 December 1, 2001
43 * AMD/Spansion Application Note: Migration from Single-byte to Three-byte
44 * Device IDs, Publication Number 25538 Revision A, November 8, 2001
wdenk2cefd152004-02-08 22:55:38 +000045 *
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020046 * Define CONFIG_SYS_WRITE_SWAPPED_DATA, if you have to swap the Bytes between
Heiko Schocher800db312007-01-19 18:05:26 +010047 * reading and writing ... (yes there is such a Hardware).
wdenk2cefd152004-02-08 22:55:38 +000048 */
49
Haavard Skinnemoend523e392007-12-13 12:56:28 +010050static uint flash_offset_cfi[2] = { FLASH_OFFSET_CFI, FLASH_OFFSET_CFI_ALT };
Mike Frysingerc2c093d2010-12-22 09:41:13 -050051#ifdef CONFIG_FLASH_CFI_MTD
Piotr Ziecik2a7493c2008-11-17 15:49:32 +010052static uint flash_verbose = 1;
Mike Frysingerc2c093d2010-12-22 09:41:13 -050053#else
54#define flash_verbose 1
55#endif
Wolfgang Denkafa0dd02006-12-27 01:26:13 +010056
Wolfgang Denk9f5fb0f2008-08-08 16:39:54 +020057flash_info_t flash_info[CFI_MAX_FLASH_BANKS]; /* FLASH chips info */
58
Stefan Roesec865e6c2006-02-28 15:29:58 +010059/*
60 * Check if chip width is defined. If not, start detecting with 8bit.
61 */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020062#ifndef CONFIG_SYS_FLASH_CFI_WIDTH
63#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_8BIT
Stefan Roesec865e6c2006-02-28 15:29:58 +010064#endif
65
Stefan Roeseab935642010-10-25 18:31:48 +020066/*
67 * 0xffff is an undefined value for the configuration register. When
68 * this value is returned, the configuration register shall not be
69 * written at all (default mode).
70 */
71static u16 cfi_flash_config_reg(int i)
72{
73#ifdef CONFIG_SYS_CFI_FLASH_CONFIG_REGS
74 return ((u16 [])CONFIG_SYS_CFI_FLASH_CONFIG_REGS)[i];
75#else
76 return 0xffff;
77#endif
78}
79
Stefan Roesefb9a7302010-08-31 10:00:10 +020080#if defined(CONFIG_SYS_MAX_FLASH_BANKS_DETECT)
81int cfi_flash_num_flash_banks = CONFIG_SYS_MAX_FLASH_BANKS_DETECT;
82#endif
83
Stefan Roese7e7dda82010-08-30 10:11:51 +020084static phys_addr_t __cfi_flash_bank_addr(int i)
85{
86 return ((phys_addr_t [])CONFIG_SYS_FLASH_BANKS_LIST)[i];
87}
88phys_addr_t cfi_flash_bank_addr(int i)
89 __attribute__((weak, alias("__cfi_flash_bank_addr")));
90
Ilya Yanok755c1802010-10-21 17:20:12 +020091static unsigned long __cfi_flash_bank_size(int i)
92{
93#ifdef CONFIG_SYS_FLASH_BANKS_SIZES
94 return ((unsigned long [])CONFIG_SYS_FLASH_BANKS_SIZES)[i];
95#else
96 return 0;
97#endif
98}
99unsigned long cfi_flash_bank_size(int i)
100 __attribute__((weak, alias("__cfi_flash_bank_size")));
101
Stefan Roese38ae9822008-11-17 14:45:22 +0100102static void __flash_write8(u8 value, void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100103{
104 __raw_writeb(value, addr);
105}
106
Stefan Roese38ae9822008-11-17 14:45:22 +0100107static void __flash_write16(u16 value, void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100108{
109 __raw_writew(value, addr);
110}
111
Stefan Roese38ae9822008-11-17 14:45:22 +0100112static void __flash_write32(u32 value, void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100113{
114 __raw_writel(value, addr);
115}
116
Stefan Roese38ae9822008-11-17 14:45:22 +0100117static void __flash_write64(u64 value, void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100118{
119 /* No architectures currently implement __raw_writeq() */
120 *(volatile u64 *)addr = value;
121}
122
Stefan Roese38ae9822008-11-17 14:45:22 +0100123static u8 __flash_read8(void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100124{
125 return __raw_readb(addr);
126}
127
Stefan Roese38ae9822008-11-17 14:45:22 +0100128static u16 __flash_read16(void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100129{
130 return __raw_readw(addr);
131}
132
Stefan Roese38ae9822008-11-17 14:45:22 +0100133static u32 __flash_read32(void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100134{
135 return __raw_readl(addr);
136}
137
Daniel Hellstromcfd71382008-03-28 20:40:19 +0100138static u64 __flash_read64(void *addr)
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100139{
140 /* No architectures currently implement __raw_readq() */
141 return *(volatile u64 *)addr;
142}
143
Stefan Roese38ae9822008-11-17 14:45:22 +0100144#ifdef CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS
145void flash_write8(u8 value, void *addr)__attribute__((weak, alias("__flash_write8")));
146void flash_write16(u16 value, void *addr)__attribute__((weak, alias("__flash_write16")));
147void flash_write32(u32 value, void *addr)__attribute__((weak, alias("__flash_write32")));
148void flash_write64(u64 value, void *addr)__attribute__((weak, alias("__flash_write64")));
149u8 flash_read8(void *addr)__attribute__((weak, alias("__flash_read8")));
150u16 flash_read16(void *addr)__attribute__((weak, alias("__flash_read16")));
151u32 flash_read32(void *addr)__attribute__((weak, alias("__flash_read32")));
Daniel Hellstromcfd71382008-03-28 20:40:19 +0100152u64 flash_read64(void *addr)__attribute__((weak, alias("__flash_read64")));
Stefan Roese38ae9822008-11-17 14:45:22 +0100153#else
154#define flash_write8 __flash_write8
155#define flash_write16 __flash_write16
156#define flash_write32 __flash_write32
157#define flash_write64 __flash_write64
158#define flash_read8 __flash_read8
159#define flash_read16 __flash_read16
160#define flash_read32 __flash_read32
161#define flash_read64 __flash_read64
162#endif
Daniel Hellstromcfd71382008-03-28 20:40:19 +0100163
wdenk2cefd152004-02-08 22:55:38 +0000164/*-----------------------------------------------------------------------
wdenk2cefd152004-02-08 22:55:38 +0000165 */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200166#if defined(CONFIG_ENV_IS_IN_FLASH) || defined(CONFIG_ENV_ADDR_REDUND) || (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE)
Heiko Schocher4c0f0052009-02-10 09:53:29 +0100167flash_info_t *flash_get_info(ulong base)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200168{
169 int i;
Masahiro Yamadac663b9a2013-05-17 14:50:37 +0900170 flash_info_t *info;
wdenk2cefd152004-02-08 22:55:38 +0000171
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200172 for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
Masahiro Yamada44049f32013-05-17 14:50:36 +0900173 info = &flash_info[i];
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200174 if (info->size && info->start[0] <= base &&
175 base <= info->start[0] + info->size - 1)
Masahiro Yamadac663b9a2013-05-17 14:50:37 +0900176 return info;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200177 }
wdenk2cefd152004-02-08 22:55:38 +0000178
Masahiro Yamadac663b9a2013-05-17 14:50:37 +0900179 return NULL;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200180}
wdenk2cefd152004-02-08 22:55:38 +0000181#endif
182
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100183unsigned long flash_sector_size(flash_info_t *info, flash_sect_t sect)
184{
185 if (sect != (info->sector_count - 1))
186 return info->start[sect + 1] - info->start[sect];
187 else
188 return info->start[0] + info->size - info->start[sect];
189}
190
wdenke65527f2004-02-12 00:47:09 +0000191/*-----------------------------------------------------------------------
192 * create an address based on the offset and the port width
193 */
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100194static inline void *
195flash_map (flash_info_t * info, flash_sect_t sect, uint offset)
wdenke65527f2004-02-12 00:47:09 +0000196{
Stefan Roese70a90b72013-04-12 19:04:54 +0200197 unsigned int byte_offset = offset * info->portwidth;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100198
Stefan Roese70a90b72013-04-12 19:04:54 +0200199 return (void *)(info->start[sect] + byte_offset);
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100200}
201
202static inline void flash_unmap(flash_info_t *info, flash_sect_t sect,
203 unsigned int offset, void *addr)
204{
wdenke65527f2004-02-12 00:47:09 +0000205}
206
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200207/*-----------------------------------------------------------------------
208 * make a proper sized command based on the port and chip widths
209 */
Sebastian Siewior7746ed82008-07-15 13:35:23 +0200210static void flash_make_cmd(flash_info_t *info, u32 cmd, void *cmdbuf)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200211{
212 int i;
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400213 int cword_offset;
214 int cp_offset;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200215#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Sebastian Siewiord528cd62008-07-16 20:04:49 +0200216 u32 cmd_le = cpu_to_le32(cmd);
217#endif
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400218 uchar val;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200219 uchar *cp = (uchar *) cmdbuf;
220
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400221 for (i = info->portwidth; i > 0; i--){
222 cword_offset = (info->portwidth-i)%info->chipwidth;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200223#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400224 cp_offset = info->portwidth - i;
Sebastian Siewiord528cd62008-07-16 20:04:49 +0200225 val = *((uchar*)&cmd_le + cword_offset);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200226#else
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400227 cp_offset = i - 1;
Sebastian Siewior7746ed82008-07-15 13:35:23 +0200228 val = *((uchar*)&cmd + sizeof(u32) - cword_offset - 1);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200229#endif
Sebastian Siewior7746ed82008-07-15 13:35:23 +0200230 cp[cp_offset] = (cword_offset >= sizeof(u32)) ? 0x00 : val;
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400231 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200232}
233
wdenk2cefd152004-02-08 22:55:38 +0000234#ifdef DEBUG
wdenke65527f2004-02-12 00:47:09 +0000235/*-----------------------------------------------------------------------
236 * Debug support
237 */
Haavard Skinnemoen670a3232007-12-13 12:56:29 +0100238static void print_longlong (char *str, unsigned long long data)
wdenk2cefd152004-02-08 22:55:38 +0000239{
240 int i;
241 char *cp;
wdenke65527f2004-02-12 00:47:09 +0000242
Wolfgang Denk49f4f6a2009-02-04 09:42:20 +0100243 cp = (char *) &data;
wdenke65527f2004-02-12 00:47:09 +0000244 for (i = 0; i < 8; i++)
245 sprintf (&str[i * 2], "%2.2x", *cp++);
wdenk2cefd152004-02-08 22:55:38 +0000246}
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200247
Haavard Skinnemoen53baec72007-12-14 15:36:16 +0100248static void flash_printqry (struct cfi_qry *qry)
wdenke65527f2004-02-12 00:47:09 +0000249{
Haavard Skinnemoen53baec72007-12-14 15:36:16 +0100250 u8 *p = (u8 *)qry;
wdenke65527f2004-02-12 00:47:09 +0000251 int x, y;
252
Haavard Skinnemoen53baec72007-12-14 15:36:16 +0100253 for (x = 0; x < sizeof(struct cfi_qry); x += 16) {
254 debug("%02x : ", x);
255 for (y = 0; y < 16; y++)
256 debug("%2.2x ", p[x + y]);
257 debug(" ");
wdenke65527f2004-02-12 00:47:09 +0000258 for (y = 0; y < 16; y++) {
Haavard Skinnemoen53baec72007-12-14 15:36:16 +0100259 unsigned char c = p[x + y];
260 if (c >= 0x20 && c <= 0x7e)
261 debug("%c", c);
262 else
263 debug(".");
wdenke65527f2004-02-12 00:47:09 +0000264 }
Haavard Skinnemoen53baec72007-12-14 15:36:16 +0100265 debug("\n");
wdenke65527f2004-02-12 00:47:09 +0000266 }
267}
wdenk2cefd152004-02-08 22:55:38 +0000268#endif
269
270
271/*-----------------------------------------------------------------------
wdenk2cefd152004-02-08 22:55:38 +0000272 * read a character at a port width address
273 */
Haavard Skinnemoen670a3232007-12-13 12:56:29 +0100274static inline uchar flash_read_uchar (flash_info_t * info, uint offset)
wdenk2cefd152004-02-08 22:55:38 +0000275{
276 uchar *cp;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100277 uchar retval;
wdenke65527f2004-02-12 00:47:09 +0000278
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100279 cp = flash_map (info, 0, offset);
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200280#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100281 retval = flash_read8(cp);
wdenke65527f2004-02-12 00:47:09 +0000282#else
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100283 retval = flash_read8(cp + info->portwidth - 1);
wdenke65527f2004-02-12 00:47:09 +0000284#endif
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100285 flash_unmap (info, 0, offset, cp);
286 return retval;
wdenk2cefd152004-02-08 22:55:38 +0000287}
288
289/*-----------------------------------------------------------------------
Tor Krill7f2a3052008-03-28 11:29:10 +0100290 * read a word at a port width address, assume 16bit bus
291 */
292static inline ushort flash_read_word (flash_info_t * info, uint offset)
293{
294 ushort *addr, retval;
295
296 addr = flash_map (info, 0, offset);
297 retval = flash_read16 (addr);
298 flash_unmap (info, 0, offset, addr);
299 return retval;
300}
301
302
303/*-----------------------------------------------------------------------
Stefan Roese12797482006-11-13 13:55:24 +0100304 * read a long word by picking the least significant byte of each maximum
wdenk2cefd152004-02-08 22:55:38 +0000305 * port size word. Swap for ppc format.
306 */
Haavard Skinnemoen670a3232007-12-13 12:56:29 +0100307static ulong flash_read_long (flash_info_t * info, flash_sect_t sect,
308 uint offset)
wdenk2cefd152004-02-08 22:55:38 +0000309{
wdenke65527f2004-02-12 00:47:09 +0000310 uchar *addr;
311 ulong retval;
312
313#ifdef DEBUG
314 int x;
315#endif
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100316 addr = flash_map (info, sect, offset);
wdenk2cefd152004-02-08 22:55:38 +0000317
wdenke65527f2004-02-12 00:47:09 +0000318#ifdef DEBUG
319 debug ("long addr is at %p info->portwidth = %d\n", addr,
320 info->portwidth);
321 for (x = 0; x < 4 * info->portwidth; x++) {
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100322 debug ("addr[%x] = 0x%x\n", x, flash_read8(addr + x));
wdenke65527f2004-02-12 00:47:09 +0000323 }
324#endif
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200325#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100326 retval = ((flash_read8(addr) << 16) |
327 (flash_read8(addr + info->portwidth) << 24) |
328 (flash_read8(addr + 2 * info->portwidth)) |
329 (flash_read8(addr + 3 * info->portwidth) << 8));
wdenke65527f2004-02-12 00:47:09 +0000330#else
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100331 retval = ((flash_read8(addr + 2 * info->portwidth - 1) << 24) |
332 (flash_read8(addr + info->portwidth - 1) << 16) |
333 (flash_read8(addr + 4 * info->portwidth - 1) << 8) |
334 (flash_read8(addr + 3 * info->portwidth - 1)));
wdenke65527f2004-02-12 00:47:09 +0000335#endif
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100336 flash_unmap(info, sect, offset, addr);
337
wdenke65527f2004-02-12 00:47:09 +0000338 return retval;
wdenk2cefd152004-02-08 22:55:38 +0000339}
340
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200341/*
342 * Write a proper sized command to the correct address
Michael Schwingen73d044d2007-12-07 23:35:02 +0100343 */
Stefan Roese6e83e342009-10-27 15:15:55 +0100344void flash_write_cmd (flash_info_t * info, flash_sect_t sect,
345 uint offset, u32 cmd)
Michael Schwingen73d044d2007-12-07 23:35:02 +0100346{
Haavard Skinnemoend523e392007-12-13 12:56:28 +0100347
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100348 void *addr;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200349 cfiword_t cword;
Michael Schwingen73d044d2007-12-07 23:35:02 +0100350
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100351 addr = flash_map (info, sect, offset);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200352 flash_make_cmd (info, cmd, &cword);
353 switch (info->portwidth) {
354 case FLASH_CFI_8BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100355 debug ("fwc addr %p cmd %x %x 8bit x %d bit\n", addr, cmd,
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200356 cword.c, info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100357 flash_write8(cword.c, addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200358 break;
359 case FLASH_CFI_16BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100360 debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr,
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200361 cmd, cword.w,
362 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100363 flash_write16(cword.w, addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200364 break;
365 case FLASH_CFI_32BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100366 debug ("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr,
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200367 cmd, cword.l,
368 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100369 flash_write32(cword.l, addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200370 break;
371 case FLASH_CFI_64BIT:
372#ifdef DEBUG
373 {
374 char str[20];
Haavard Skinnemoend523e392007-12-13 12:56:28 +0100375
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200376 print_longlong (str, cword.ll);
377
378 debug ("fwrite addr %p cmd %x %s 64 bit x %d bit\n",
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100379 addr, cmd, str,
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200380 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Michael Schwingen73d044d2007-12-07 23:35:02 +0100381 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200382#endif
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100383 flash_write64(cword.ll, addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200384 break;
Michael Schwingen73d044d2007-12-07 23:35:02 +0100385 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200386
387 /* Ensure all the instructions are fully finished */
388 sync();
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100389
390 flash_unmap(info, sect, offset, addr);
Michael Schwingen73d044d2007-12-07 23:35:02 +0100391}
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200392
393static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect)
Michael Schwingen73d044d2007-12-07 23:35:02 +0100394{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200395 flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_UNLOCK_START);
396 flash_write_cmd (info, sect, info->addr_unlock2, AMD_CMD_UNLOCK_ACK);
Michael Schwingen73d044d2007-12-07 23:35:02 +0100397}
Michael Schwingen73d044d2007-12-07 23:35:02 +0100398
399/*-----------------------------------------------------------------------
wdenk2cefd152004-02-08 22:55:38 +0000400 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200401static int flash_isequal (flash_info_t * info, flash_sect_t sect,
402 uint offset, uchar cmd)
wdenk2cefd152004-02-08 22:55:38 +0000403{
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100404 void *addr;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200405 cfiword_t cword;
406 int retval;
wdenk2cefd152004-02-08 22:55:38 +0000407
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100408 addr = flash_map (info, sect, offset);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200409 flash_make_cmd (info, cmd, &cword);
Stefan Roeseefef95b2006-04-01 13:41:03 +0200410
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100411 debug ("is= cmd %x(%c) addr %p ", cmd, cmd, addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200412 switch (info->portwidth) {
413 case FLASH_CFI_8BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100414 debug ("is= %x %x\n", flash_read8(addr), cword.c);
415 retval = (flash_read8(addr) == cword.c);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200416 break;
417 case FLASH_CFI_16BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100418 debug ("is= %4.4x %4.4x\n", flash_read16(addr), cword.w);
419 retval = (flash_read16(addr) == cword.w);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200420 break;
421 case FLASH_CFI_32BIT:
Andrew Klossner7ddfafc2008-08-21 07:12:26 -0700422 debug ("is= %8.8x %8.8lx\n", flash_read32(addr), cword.l);
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100423 retval = (flash_read32(addr) == cword.l);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200424 break;
425 case FLASH_CFI_64BIT:
426#ifdef DEBUG
427 {
428 char str1[20];
429 char str2[20];
Michael Schwingen73d044d2007-12-07 23:35:02 +0100430
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100431 print_longlong (str1, flash_read64(addr));
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200432 print_longlong (str2, cword.ll);
433 debug ("is= %s %s\n", str1, str2);
wdenk2cefd152004-02-08 22:55:38 +0000434 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200435#endif
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100436 retval = (flash_read64(addr) == cword.ll);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200437 break;
438 default:
439 retval = 0;
440 break;
441 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100442 flash_unmap(info, sect, offset, addr);
443
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200444 return retval;
445}
Stefan Roeseefef95b2006-04-01 13:41:03 +0200446
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200447/*-----------------------------------------------------------------------
448 */
449static int flash_isset (flash_info_t * info, flash_sect_t sect,
450 uint offset, uchar cmd)
451{
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100452 void *addr;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200453 cfiword_t cword;
454 int retval;
Stefan Roeseefef95b2006-04-01 13:41:03 +0200455
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100456 addr = flash_map (info, sect, offset);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200457 flash_make_cmd (info, cmd, &cword);
458 switch (info->portwidth) {
459 case FLASH_CFI_8BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100460 retval = ((flash_read8(addr) & cword.c) == cword.c);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200461 break;
462 case FLASH_CFI_16BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100463 retval = ((flash_read16(addr) & cword.w) == cword.w);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200464 break;
465 case FLASH_CFI_32BIT:
Stefan Roesed4e37c02008-01-02 14:05:37 +0100466 retval = ((flash_read32(addr) & cword.l) == cword.l);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200467 break;
468 case FLASH_CFI_64BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100469 retval = ((flash_read64(addr) & cword.ll) == cword.ll);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200470 break;
471 default:
472 retval = 0;
473 break;
474 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100475 flash_unmap(info, sect, offset, addr);
476
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200477 return retval;
478}
Stefan Roeseefef95b2006-04-01 13:41:03 +0200479
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200480/*-----------------------------------------------------------------------
481 */
482static int flash_toggle (flash_info_t * info, flash_sect_t sect,
483 uint offset, uchar cmd)
484{
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100485 void *addr;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200486 cfiword_t cword;
487 int retval;
wdenke85b7a52004-10-10 22:16:06 +0000488
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100489 addr = flash_map (info, sect, offset);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200490 flash_make_cmd (info, cmd, &cword);
491 switch (info->portwidth) {
492 case FLASH_CFI_8BIT:
Stefan Roesecff2b492008-06-16 10:40:02 +0200493 retval = flash_read8(addr) != flash_read8(addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200494 break;
495 case FLASH_CFI_16BIT:
Stefan Roesecff2b492008-06-16 10:40:02 +0200496 retval = flash_read16(addr) != flash_read16(addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200497 break;
498 case FLASH_CFI_32BIT:
Stefan Roesecff2b492008-06-16 10:40:02 +0200499 retval = flash_read32(addr) != flash_read32(addr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200500 break;
501 case FLASH_CFI_64BIT:
Wolfgang Denk600e1832008-10-31 01:12:28 +0100502 retval = ( (flash_read32( addr ) != flash_read32( addr )) ||
503 (flash_read32(addr+4) != flash_read32(addr+4)) );
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200504 break;
505 default:
506 retval = 0;
507 break;
508 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100509 flash_unmap(info, sect, offset, addr);
510
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200511 return retval;
wdenk2cefd152004-02-08 22:55:38 +0000512}
513
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200514/*
515 * flash_is_busy - check to see if the flash is busy
516 *
517 * This routine checks the status of the chip and returns true if the
518 * chip is busy.
wdenk2cefd152004-02-08 22:55:38 +0000519 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200520static int flash_is_busy (flash_info_t * info, flash_sect_t sect)
wdenk5c71a7a2005-05-16 15:23:22 +0000521{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200522 int retval;
wdenk5c71a7a2005-05-16 15:23:22 +0000523
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200524 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400525 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200526 case CFI_CMDSET_INTEL_STANDARD:
527 case CFI_CMDSET_INTEL_EXTENDED:
528 retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE);
529 break;
530 case CFI_CMDSET_AMD_STANDARD:
531 case CFI_CMDSET_AMD_EXTENDED:
532#ifdef CONFIG_FLASH_CFI_LEGACY
533 case CFI_CMDSET_AMD_LEGACY:
534#endif
535 retval = flash_toggle (info, sect, 0, AMD_STATUS_TOGGLE);
536 break;
537 default:
538 retval = 0;
wdenk5c71a7a2005-05-16 15:23:22 +0000539 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200540 debug ("flash_is_busy: %d\n", retval);
541 return retval;
wdenk5c71a7a2005-05-16 15:23:22 +0000542}
543
544/*-----------------------------------------------------------------------
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200545 * wait for XSR.7 to be set. Time out with an error if it does not.
546 * This routine does not set the flash to read-array mode.
wdenk5c71a7a2005-05-16 15:23:22 +0000547 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200548static int flash_status_check (flash_info_t * info, flash_sect_t sector,
549 ulong tout, char *prompt)
wdenk2cefd152004-02-08 22:55:38 +0000550{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200551 ulong start;
wdenk2cefd152004-02-08 22:55:38 +0000552
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200553#if CONFIG_SYS_HZ != 1000
Renato Andreolaac6693d2010-03-24 23:00:47 +0800554 if ((ulong)CONFIG_SYS_HZ > 100000)
555 tout *= (ulong)CONFIG_SYS_HZ / 1000; /* for a big HZ, avoid overflow */
556 else
557 tout = DIV_ROUND_UP(tout * (ulong)CONFIG_SYS_HZ, 1000);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200558#endif
wdenk2cefd152004-02-08 22:55:38 +0000559
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200560 /* Wait for command completion */
Graeme Russ13ec42b2011-07-15 02:18:56 +0000561#ifdef CONFIG_SYS_LOW_RES_TIMER
Thomas Chou4b7e6682010-04-01 11:15:05 +0800562 reset_timer();
Graeme Russ13ec42b2011-07-15 02:18:56 +0000563#endif
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200564 start = get_timer (0);
Jens Scharsig (BuS Elektronik)287a1582012-01-27 09:29:53 +0100565 WATCHDOG_RESET();
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200566 while (flash_is_busy (info, sector)) {
567 if (get_timer (start) > tout) {
568 printf ("Flash %s timeout at address %lx data %lx\n",
569 prompt, info->start[sector],
570 flash_read_long (info, sector, 0));
571 flash_write_cmd (info, sector, 0, info->cmd_reset);
Stefan Roese70a90b72013-04-12 19:04:54 +0200572 udelay(1);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200573 return ERR_TIMOUT;
wdenk2cefd152004-02-08 22:55:38 +0000574 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200575 udelay (1); /* also triggers watchdog */
wdenk2cefd152004-02-08 22:55:38 +0000576 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200577 return ERR_OK;
578}
wdenk2cefd152004-02-08 22:55:38 +0000579
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200580/*-----------------------------------------------------------------------
581 * Wait for XSR.7 to be set, if it times out print an error, otherwise
582 * do a full status check.
583 *
584 * This routine sets the flash to read-array mode.
585 */
586static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
587 ulong tout, char *prompt)
588{
589 int retcode;
wdenk2cefd152004-02-08 22:55:38 +0000590
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200591 retcode = flash_status_check (info, sector, tout, prompt);
592 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400593 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200594 case CFI_CMDSET_INTEL_EXTENDED:
595 case CFI_CMDSET_INTEL_STANDARD:
Ed Swarthout2da14102008-10-09 01:26:36 -0500596 if ((retcode != ERR_OK)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200597 && !flash_isequal (info, sector, 0, FLASH_STATUS_DONE)) {
598 retcode = ERR_INVAL;
599 printf ("Flash %s error at address %lx\n", prompt,
600 info->start[sector]);
601 if (flash_isset (info, sector, 0, FLASH_STATUS_ECLBS |
602 FLASH_STATUS_PSLBS)) {
603 puts ("Command Sequence Error.\n");
604 } else if (flash_isset (info, sector, 0,
605 FLASH_STATUS_ECLBS)) {
606 puts ("Block Erase Error.\n");
607 retcode = ERR_NOT_ERASED;
608 } else if (flash_isset (info, sector, 0,
609 FLASH_STATUS_PSLBS)) {
610 puts ("Locking Error\n");
wdenk2cefd152004-02-08 22:55:38 +0000611 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200612 if (flash_isset (info, sector, 0, FLASH_STATUS_DPS)) {
613 puts ("Block locked.\n");
614 retcode = ERR_PROTECTED;
615 }
616 if (flash_isset (info, sector, 0, FLASH_STATUS_VPENS))
617 puts ("Vpp Low Error.\n");
wdenk2cefd152004-02-08 22:55:38 +0000618 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200619 flash_write_cmd (info, sector, 0, info->cmd_reset);
Aaron Williamsffcef2f2011-04-12 00:59:04 -0700620 udelay(1);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200621 break;
622 default:
623 break;
wdenk2cefd152004-02-08 22:55:38 +0000624 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200625 return retcode;
wdenk2cefd152004-02-08 22:55:38 +0000626}
627
Thomas Chou076767a2010-03-26 08:17:00 +0800628static int use_flash_status_poll(flash_info_t *info)
629{
630#ifdef CONFIG_SYS_CFI_FLASH_STATUS_POLL
631 if (info->vendor == CFI_CMDSET_AMD_EXTENDED ||
632 info->vendor == CFI_CMDSET_AMD_STANDARD)
633 return 1;
634#endif
635 return 0;
636}
637
638static int flash_status_poll(flash_info_t *info, void *src, void *dst,
639 ulong tout, char *prompt)
640{
641#ifdef CONFIG_SYS_CFI_FLASH_STATUS_POLL
642 ulong start;
643 int ready;
644
645#if CONFIG_SYS_HZ != 1000
646 if ((ulong)CONFIG_SYS_HZ > 100000)
647 tout *= (ulong)CONFIG_SYS_HZ / 1000; /* for a big HZ, avoid overflow */
648 else
649 tout = DIV_ROUND_UP(tout * (ulong)CONFIG_SYS_HZ, 1000);
650#endif
651
652 /* Wait for command completion */
Graeme Russ13ec42b2011-07-15 02:18:56 +0000653#ifdef CONFIG_SYS_LOW_RES_TIMER
Thomas Chou4b7e6682010-04-01 11:15:05 +0800654 reset_timer();
Graeme Russ13ec42b2011-07-15 02:18:56 +0000655#endif
Thomas Chou076767a2010-03-26 08:17:00 +0800656 start = get_timer(0);
Jens Scharsig (BuS Elektronik)287a1582012-01-27 09:29:53 +0100657 WATCHDOG_RESET();
Thomas Chou076767a2010-03-26 08:17:00 +0800658 while (1) {
659 switch (info->portwidth) {
660 case FLASH_CFI_8BIT:
661 ready = flash_read8(dst) == flash_read8(src);
662 break;
663 case FLASH_CFI_16BIT:
664 ready = flash_read16(dst) == flash_read16(src);
665 break;
666 case FLASH_CFI_32BIT:
667 ready = flash_read32(dst) == flash_read32(src);
668 break;
669 case FLASH_CFI_64BIT:
670 ready = flash_read64(dst) == flash_read64(src);
671 break;
672 default:
673 ready = 0;
674 break;
675 }
676 if (ready)
677 break;
678 if (get_timer(start) > tout) {
679 printf("Flash %s timeout at address %lx data %lx\n",
680 prompt, (ulong)dst, (ulong)flash_read8(dst));
681 return ERR_TIMOUT;
682 }
683 udelay(1); /* also triggers watchdog */
684 }
685#endif /* CONFIG_SYS_CFI_FLASH_STATUS_POLL */
686 return ERR_OK;
687}
688
wdenk2cefd152004-02-08 22:55:38 +0000689/*-----------------------------------------------------------------------
690 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200691static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
wdenk2cefd152004-02-08 22:55:38 +0000692{
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200693#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200694 unsigned short w;
695 unsigned int l;
696 unsigned long long ll;
697#endif
wdenk2cefd152004-02-08 22:55:38 +0000698
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200699 switch (info->portwidth) {
700 case FLASH_CFI_8BIT:
701 cword->c = c;
702 break;
703 case FLASH_CFI_16BIT:
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200704#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200705 w = c;
706 w <<= 8;
707 cword->w = (cword->w >> 8) | w;
708#else
709 cword->w = (cword->w << 8) | c;
Michael Schwingen73d044d2007-12-07 23:35:02 +0100710#endif
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200711 break;
712 case FLASH_CFI_32BIT:
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200713#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200714 l = c;
715 l <<= 24;
716 cword->l = (cword->l >> 8) | l;
717#else
718 cword->l = (cword->l << 8) | c;
719#endif
720 break;
721 case FLASH_CFI_64BIT:
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200722#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200723 ll = c;
724 ll <<= 56;
725 cword->ll = (cword->ll >> 8) | ll;
726#else
727 cword->ll = (cword->ll << 8) | c;
728#endif
729 break;
Stefan Roese12797482006-11-13 13:55:24 +0100730 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200731}
wdenk2cefd152004-02-08 22:55:38 +0000732
Jens Gehrlein8ee4add2008-12-16 17:25:55 +0100733/*
734 * Loop through the sector table starting from the previously found sector.
735 * Searches forwards or backwards, dependent on the passed address.
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200736 */
737static flash_sect_t find_sector (flash_info_t * info, ulong addr)
738{
Kim Phillipsd303b862012-10-29 13:34:45 +0000739 static flash_sect_t saved_sector; /* previously found sector */
Stefan Roese70a90b72013-04-12 19:04:54 +0200740 static flash_info_t *saved_info; /* previously used flash bank */
Jens Gehrlein8ee4add2008-12-16 17:25:55 +0100741 flash_sect_t sector = saved_sector;
742
Stefan Roese70a90b72013-04-12 19:04:54 +0200743 if ((info != saved_info) || (sector >= info->sector_count))
744 sector = 0;
745
Jens Gehrlein8ee4add2008-12-16 17:25:55 +0100746 while ((info->start[sector] < addr)
747 && (sector < info->sector_count - 1))
748 sector++;
749 while ((info->start[sector] > addr) && (sector > 0))
750 /*
751 * also decrements the sector in case of an overshot
752 * in the first loop
753 */
754 sector--;
wdenk2cefd152004-02-08 22:55:38 +0000755
Jens Gehrlein8ee4add2008-12-16 17:25:55 +0100756 saved_sector = sector;
Stefan Roese70a90b72013-04-12 19:04:54 +0200757 saved_info = info;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200758 return sector;
wdenk2cefd152004-02-08 22:55:38 +0000759}
760
761/*-----------------------------------------------------------------------
wdenk2cefd152004-02-08 22:55:38 +0000762 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200763static int flash_write_cfiword (flash_info_t * info, ulong dest,
764 cfiword_t cword)
wdenk2cefd152004-02-08 22:55:38 +0000765{
Becky Bruce9d1f6af2009-02-02 16:34:51 -0600766 void *dstaddr = (void *)dest;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200767 int flag;
Jens Gehrlein1e814cf2008-12-16 17:25:54 +0100768 flash_sect_t sect = 0;
769 char sect_found = 0;
wdenk2cefd152004-02-08 22:55:38 +0000770
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200771 /* Check if Flash is (sufficiently) erased */
772 switch (info->portwidth) {
773 case FLASH_CFI_8BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100774 flag = ((flash_read8(dstaddr) & cword.c) == cword.c);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200775 break;
776 case FLASH_CFI_16BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100777 flag = ((flash_read16(dstaddr) & cword.w) == cword.w);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200778 break;
779 case FLASH_CFI_32BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100780 flag = ((flash_read32(dstaddr) & cword.l) == cword.l);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200781 break;
782 case FLASH_CFI_64BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100783 flag = ((flash_read64(dstaddr) & cword.ll) == cword.ll);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200784 break;
785 default:
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100786 flag = 0;
787 break;
wdenk2cefd152004-02-08 22:55:38 +0000788 }
Becky Bruce9d1f6af2009-02-02 16:34:51 -0600789 if (!flag)
Stefan Roese707c1462007-12-27 07:50:54 +0100790 return ERR_NOT_ERASED;
wdenk2cefd152004-02-08 22:55:38 +0000791
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200792 /* Disable interrupts which might cause a timeout here */
793 flag = disable_interrupts ();
Stefan Roesec865e6c2006-02-28 15:29:58 +0100794
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200795 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400796 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200797 case CFI_CMDSET_INTEL_EXTENDED:
798 case CFI_CMDSET_INTEL_STANDARD:
799 flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS);
800 flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE);
801 break;
802 case CFI_CMDSET_AMD_EXTENDED:
803 case CFI_CMDSET_AMD_STANDARD:
Ed Swarthout2da14102008-10-09 01:26:36 -0500804 sect = find_sector(info, dest);
805 flash_unlock_seq (info, sect);
806 flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_WRITE);
Jens Gehrlein1e814cf2008-12-16 17:25:54 +0100807 sect_found = 1;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200808 break;
Po-Yu Chuang3f483402009-07-10 18:03:57 +0800809#ifdef CONFIG_FLASH_CFI_LEGACY
810 case CFI_CMDSET_AMD_LEGACY:
811 sect = find_sector(info, dest);
812 flash_unlock_seq (info, 0);
813 flash_write_cmd (info, 0, info->addr_unlock1, AMD_CMD_WRITE);
814 sect_found = 1;
815 break;
816#endif
wdenk2cefd152004-02-08 22:55:38 +0000817 }
818
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200819 switch (info->portwidth) {
820 case FLASH_CFI_8BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100821 flash_write8(cword.c, dstaddr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200822 break;
823 case FLASH_CFI_16BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100824 flash_write16(cword.w, dstaddr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200825 break;
826 case FLASH_CFI_32BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100827 flash_write32(cword.l, dstaddr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200828 break;
829 case FLASH_CFI_64BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100830 flash_write64(cword.ll, dstaddr);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200831 break;
wdenk2cefd152004-02-08 22:55:38 +0000832 }
833
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200834 /* re-enable interrupts if necessary */
835 if (flag)
836 enable_interrupts ();
wdenk2cefd152004-02-08 22:55:38 +0000837
Jens Gehrlein1e814cf2008-12-16 17:25:54 +0100838 if (!sect_found)
839 sect = find_sector (info, dest);
840
Thomas Chou076767a2010-03-26 08:17:00 +0800841 if (use_flash_status_poll(info))
842 return flash_status_poll(info, &cword, dstaddr,
843 info->write_tout, "write");
844 else
845 return flash_full_status_check(info, sect,
846 info->write_tout, "write");
wdenk2cefd152004-02-08 22:55:38 +0000847}
848
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200849#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
wdenk2cefd152004-02-08 22:55:38 +0000850
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200851static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
852 int len)
wdenk2cefd152004-02-08 22:55:38 +0000853{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200854 flash_sect_t sector;
855 int cnt;
856 int retcode;
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100857 void *src = cp;
Stefan Roese42c6ace2009-02-05 11:25:57 +0100858 void *dst = (void *)dest;
Stefan Roese707c1462007-12-27 07:50:54 +0100859 void *dst2 = dst;
Tao Houdd3b4552012-03-15 23:33:58 +0800860 int flag = 1;
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200861 uint offset = 0;
862 unsigned int shift;
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400863 uchar write_cmd;
Stefan Roese707c1462007-12-27 07:50:54 +0100864
865 switch (info->portwidth) {
866 case FLASH_CFI_8BIT:
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200867 shift = 0;
Stefan Roese707c1462007-12-27 07:50:54 +0100868 break;
869 case FLASH_CFI_16BIT:
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200870 shift = 1;
Stefan Roese707c1462007-12-27 07:50:54 +0100871 break;
872 case FLASH_CFI_32BIT:
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200873 shift = 2;
Stefan Roese707c1462007-12-27 07:50:54 +0100874 break;
875 case FLASH_CFI_64BIT:
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200876 shift = 3;
Stefan Roese707c1462007-12-27 07:50:54 +0100877 break;
878 default:
879 retcode = ERR_INVAL;
880 goto out_unmap;
881 }
882
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200883 cnt = len >> shift;
884
Tao Houdd3b4552012-03-15 23:33:58 +0800885 while ((cnt-- > 0) && (flag == 1)) {
Stefan Roese707c1462007-12-27 07:50:54 +0100886 switch (info->portwidth) {
887 case FLASH_CFI_8BIT:
888 flag = ((flash_read8(dst2) & flash_read8(src)) ==
889 flash_read8(src));
890 src += 1, dst2 += 1;
891 break;
892 case FLASH_CFI_16BIT:
893 flag = ((flash_read16(dst2) & flash_read16(src)) ==
894 flash_read16(src));
895 src += 2, dst2 += 2;
896 break;
897 case FLASH_CFI_32BIT:
898 flag = ((flash_read32(dst2) & flash_read32(src)) ==
899 flash_read32(src));
900 src += 4, dst2 += 4;
901 break;
902 case FLASH_CFI_64BIT:
903 flag = ((flash_read64(dst2) & flash_read64(src)) ==
904 flash_read64(src));
905 src += 8, dst2 += 8;
906 break;
907 }
908 }
909 if (!flag) {
910 retcode = ERR_NOT_ERASED;
911 goto out_unmap;
912 }
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100913
Stefan Roese707c1462007-12-27 07:50:54 +0100914 src = cp;
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100915 sector = find_sector (info, dest);
wdenke65527f2004-02-12 00:47:09 +0000916
917 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400918 case CFI_CMDSET_INTEL_PROG_REGIONS:
wdenk2cefd152004-02-08 22:55:38 +0000919 case CFI_CMDSET_INTEL_STANDARD:
920 case CFI_CMDSET_INTEL_EXTENDED:
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400921 write_cmd = (info->vendor == CFI_CMDSET_INTEL_PROG_REGIONS) ?
922 FLASH_CMD_WRITE_BUFFER_PROG : FLASH_CMD_WRITE_TO_BUFFER;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200923 flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +0400924 flash_write_cmd (info, sector, 0, FLASH_CMD_READ_STATUS);
925 flash_write_cmd (info, sector, 0, write_cmd);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200926 retcode = flash_status_check (info, sector,
927 info->buffer_write_tout,
928 "write to buffer");
929 if (retcode == ERR_OK) {
930 /* reduce the number of loops by the width of
931 * the port */
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200932 cnt = len >> shift;
Vasiliy Leoenenkoc47c0d42008-05-07 21:24:44 +0400933 flash_write_cmd (info, sector, 0, cnt - 1);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200934 while (cnt-- > 0) {
935 switch (info->portwidth) {
936 case FLASH_CFI_8BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100937 flash_write8(flash_read8(src), dst);
938 src += 1, dst += 1;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200939 break;
940 case FLASH_CFI_16BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100941 flash_write16(flash_read16(src), dst);
942 src += 2, dst += 2;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200943 break;
944 case FLASH_CFI_32BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100945 flash_write32(flash_read32(src), dst);
946 src += 4, dst += 4;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200947 break;
948 case FLASH_CFI_64BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100949 flash_write64(flash_read64(src), dst);
950 src += 8, dst += 8;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200951 break;
952 default:
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100953 retcode = ERR_INVAL;
954 goto out_unmap;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200955 }
956 }
957 flash_write_cmd (info, sector, 0,
958 FLASH_CMD_WRITE_BUFFER_CONFIRM);
959 retcode = flash_full_status_check (
960 info, sector, info->buffer_write_tout,
961 "buffer write");
962 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +0100963
964 break;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200965
wdenk2cefd152004-02-08 22:55:38 +0000966 case CFI_CMDSET_AMD_STANDARD:
967 case CFI_CMDSET_AMD_EXTENDED:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200968 flash_unlock_seq(info,0);
Guennadi Liakhovetski183284f2008-04-03 13:36:02 +0200969
970#ifdef CONFIG_FLASH_SPANSION_S29WS_N
971 offset = ((unsigned long)dst - info->start[sector]) >> shift;
972#endif
973 flash_write_cmd(info, sector, offset, AMD_CMD_WRITE_TO_BUFFER);
974 cnt = len >> shift;
John Schmolleree355882009-08-12 10:55:47 -0500975 flash_write_cmd(info, sector, offset, cnt - 1);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200976
977 switch (info->portwidth) {
978 case FLASH_CFI_8BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100979 while (cnt-- > 0) {
980 flash_write8(flash_read8(src), dst);
981 src += 1, dst += 1;
982 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200983 break;
984 case FLASH_CFI_16BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100985 while (cnt-- > 0) {
986 flash_write16(flash_read16(src), dst);
987 src += 2, dst += 2;
988 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200989 break;
990 case FLASH_CFI_32BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100991 while (cnt-- > 0) {
992 flash_write32(flash_read32(src), dst);
993 src += 4, dst += 4;
994 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +0200995 break;
996 case FLASH_CFI_64BIT:
Haavard Skinnemoen21b95b42007-12-13 12:56:32 +0100997 while (cnt-- > 0) {
998 flash_write64(flash_read64(src), dst);
999 src += 8, dst += 8;
1000 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001001 break;
1002 default:
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001003 retcode = ERR_INVAL;
1004 goto out_unmap;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001005 }
1006
1007 flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_BUFFER_CONFIRM);
Thomas Chou076767a2010-03-26 08:17:00 +08001008 if (use_flash_status_poll(info))
1009 retcode = flash_status_poll(info, src - (1 << shift),
1010 dst - (1 << shift),
1011 info->buffer_write_tout,
1012 "buffer write");
1013 else
1014 retcode = flash_full_status_check(info, sector,
1015 info->buffer_write_tout,
1016 "buffer write");
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001017 break;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001018
wdenk2cefd152004-02-08 22:55:38 +00001019 default:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001020 debug ("Unknown Command Set\n");
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001021 retcode = ERR_INVAL;
1022 break;
wdenk2cefd152004-02-08 22:55:38 +00001023 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001024
1025out_unmap:
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001026 return retcode;
wdenk2cefd152004-02-08 22:55:38 +00001027}
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001028#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001029
wdenke65527f2004-02-12 00:47:09 +00001030
wdenk2cefd152004-02-08 22:55:38 +00001031/*-----------------------------------------------------------------------
wdenk2cefd152004-02-08 22:55:38 +00001032 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001033int flash_erase (flash_info_t * info, int s_first, int s_last)
wdenk2cefd152004-02-08 22:55:38 +00001034{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001035 int rcode = 0;
1036 int prot;
1037 flash_sect_t sect;
Thomas Chou076767a2010-03-26 08:17:00 +08001038 int st;
wdenk2cefd152004-02-08 22:55:38 +00001039
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001040 if (info->flash_id != FLASH_MAN_CFI) {
1041 puts ("Can't erase unknown flash type - aborted\n");
1042 return 1;
1043 }
1044 if ((s_first < 0) || (s_first > s_last)) {
1045 puts ("- no sectors to erase\n");
1046 return 1;
1047 }
Stefan Roeseefef95b2006-04-01 13:41:03 +02001048
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001049 prot = 0;
1050 for (sect = s_first; sect <= s_last; ++sect) {
1051 if (info->protect[sect]) {
1052 prot++;
wdenk2cefd152004-02-08 22:55:38 +00001053 }
1054 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001055 if (prot) {
1056 printf ("- Warning: %d protected sectors will not be erased!\n",
1057 prot);
Piotr Ziecik2a7493c2008-11-17 15:49:32 +01001058 } else if (flash_verbose) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001059 putc ('\n');
1060 }
wdenke65527f2004-02-12 00:47:09 +00001061
wdenke65527f2004-02-12 00:47:09 +00001062
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001063 for (sect = s_first; sect <= s_last; sect++) {
Joe Hershberger497c32f2012-08-17 15:36:41 -05001064 if (ctrlc()) {
1065 printf("\n");
1066 return 1;
1067 }
1068
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001069 if (info->protect[sect] == 0) { /* not protected */
Joe Hershberger7f3c2112012-08-17 15:36:40 -05001070#ifdef CONFIG_SYS_FLASH_CHECK_BLANK_BEFORE_ERASE
1071 int k;
1072 int size;
1073 int erased;
1074 u32 *flash;
1075
1076 /*
1077 * Check if whole sector is erased
1078 */
1079 size = flash_sector_size(info, sect);
1080 erased = 1;
1081 flash = (u32 *)info->start[sect];
1082 /* divide by 4 for longword access */
1083 size = size >> 2;
1084 for (k = 0; k < size; k++) {
1085 if (flash_read32(flash++) != 0xffffffff) {
1086 erased = 0;
1087 break;
1088 }
1089 }
1090 if (erased) {
1091 if (flash_verbose)
1092 putc(',');
1093 continue;
1094 }
1095#endif
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001096 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04001097 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001098 case CFI_CMDSET_INTEL_STANDARD:
1099 case CFI_CMDSET_INTEL_EXTENDED:
1100 flash_write_cmd (info, sect, 0,
1101 FLASH_CMD_CLEAR_STATUS);
1102 flash_write_cmd (info, sect, 0,
1103 FLASH_CMD_BLOCK_ERASE);
1104 flash_write_cmd (info, sect, 0,
1105 FLASH_CMD_ERASE_CONFIRM);
1106 break;
1107 case CFI_CMDSET_AMD_STANDARD:
1108 case CFI_CMDSET_AMD_EXTENDED:
1109 flash_unlock_seq (info, sect);
1110 flash_write_cmd (info, sect,
1111 info->addr_unlock1,
1112 AMD_CMD_ERASE_START);
1113 flash_unlock_seq (info, sect);
1114 flash_write_cmd (info, sect, 0,
Angelo Dureghello7ba30282012-12-01 01:14:18 +01001115 info->cmd_erase_sector);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001116 break;
1117#ifdef CONFIG_FLASH_CFI_LEGACY
1118 case CFI_CMDSET_AMD_LEGACY:
1119 flash_unlock_seq (info, 0);
1120 flash_write_cmd (info, 0, info->addr_unlock1,
1121 AMD_CMD_ERASE_START);
1122 flash_unlock_seq (info, 0);
1123 flash_write_cmd (info, sect, 0,
1124 AMD_CMD_ERASE_SECTOR);
1125 break;
1126#endif
1127 default:
1128 debug ("Unkown flash vendor %d\n",
1129 info->vendor);
1130 break;
wdenke65527f2004-02-12 00:47:09 +00001131 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001132
Thomas Chou076767a2010-03-26 08:17:00 +08001133 if (use_flash_status_poll(info)) {
Kim Phillipsd303b862012-10-29 13:34:45 +00001134 cfiword_t cword;
Thomas Chou076767a2010-03-26 08:17:00 +08001135 void *dest;
Kim Phillipsd303b862012-10-29 13:34:45 +00001136 cword.ll = 0xffffffffffffffffULL;
Thomas Chou076767a2010-03-26 08:17:00 +08001137 dest = flash_map(info, sect, 0);
1138 st = flash_status_poll(info, &cword, dest,
1139 info->erase_blk_tout, "erase");
1140 flash_unmap(info, sect, 0, dest);
1141 } else
1142 st = flash_full_status_check(info, sect,
1143 info->erase_blk_tout,
1144 "erase");
1145 if (st)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001146 rcode = 1;
Thomas Chou076767a2010-03-26 08:17:00 +08001147 else if (flash_verbose)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001148 putc ('.');
wdenk2cefd152004-02-08 22:55:38 +00001149 }
wdenk2cefd152004-02-08 22:55:38 +00001150 }
Piotr Ziecik2a7493c2008-11-17 15:49:32 +01001151
1152 if (flash_verbose)
1153 puts (" done\n");
1154
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001155 return rcode;
wdenk2cefd152004-02-08 22:55:38 +00001156}
wdenke65527f2004-02-12 00:47:09 +00001157
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001158#ifdef CONFIG_SYS_FLASH_EMPTY_INFO
1159static int sector_erased(flash_info_t *info, int i)
1160{
1161 int k;
1162 int size;
Stefan Roesea9153f22010-10-25 18:31:39 +02001163 u32 *flash;
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001164
1165 /*
1166 * Check if whole sector is erased
1167 */
1168 size = flash_sector_size(info, i);
Stefan Roesea9153f22010-10-25 18:31:39 +02001169 flash = (u32 *)info->start[i];
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001170 /* divide by 4 for longword access */
1171 size = size >> 2;
1172
1173 for (k = 0; k < size; k++) {
Stefan Roesea9153f22010-10-25 18:31:39 +02001174 if (flash_read32(flash++) != 0xffffffff)
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001175 return 0; /* not erased */
1176 }
1177
1178 return 1; /* erased */
1179}
1180#endif /* CONFIG_SYS_FLASH_EMPTY_INFO */
1181
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001182void flash_print_info (flash_info_t * info)
wdenk2cefd152004-02-08 22:55:38 +00001183{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001184 int i;
wdenk369d43d2004-03-14 14:09:05 +00001185
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001186 if (info->flash_id != FLASH_MAN_CFI) {
1187 puts ("missing or unknown FLASH type\n");
1188 return;
1189 }
1190
Peter Tyser0b5a2632010-12-28 18:12:05 -06001191 printf ("%s flash (%d x %d)",
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001192 info->name,
1193 (info->portwidth << 3), (info->chipwidth << 3));
1194 if (info->size < 1024*1024)
1195 printf (" Size: %ld kB in %d Sectors\n",
1196 info->size >> 10, info->sector_count);
1197 else
1198 printf (" Size: %ld MB in %d Sectors\n",
1199 info->size >> 20, info->sector_count);
1200 printf (" ");
1201 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04001202 case CFI_CMDSET_INTEL_PROG_REGIONS:
1203 printf ("Intel Prog Regions");
1204 break;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001205 case CFI_CMDSET_INTEL_STANDARD:
1206 printf ("Intel Standard");
1207 break;
1208 case CFI_CMDSET_INTEL_EXTENDED:
1209 printf ("Intel Extended");
1210 break;
1211 case CFI_CMDSET_AMD_STANDARD:
1212 printf ("AMD Standard");
1213 break;
1214 case CFI_CMDSET_AMD_EXTENDED:
1215 printf ("AMD Extended");
1216 break;
1217#ifdef CONFIG_FLASH_CFI_LEGACY
1218 case CFI_CMDSET_AMD_LEGACY:
1219 printf ("AMD Legacy");
1220 break;
wdenk369d43d2004-03-14 14:09:05 +00001221#endif
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001222 default:
1223 printf ("Unknown (%d)", info->vendor);
1224 break;
wdenk2cefd152004-02-08 22:55:38 +00001225 }
Philippe De Muyter35bc0812010-08-10 16:54:52 +02001226 printf (" command set, Manufacturer ID: 0x%02X, Device ID: 0x",
1227 info->manufacturer_id);
1228 printf (info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X",
1229 info->device_id);
Heiko Schocher27cea502011-04-11 14:16:19 +02001230 if ((info->device_id & 0xff) == 0x7E) {
1231 printf(info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X",
1232 info->device_id2);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001233 }
Stefan Roesee442a902012-12-06 15:44:12 +01001234 if ((info->vendor == CFI_CMDSET_AMD_STANDARD) && (info->legacy_unlock))
1235 printf("\n Advanced Sector Protection (PPB) enabled");
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001236 printf ("\n Erase timeout: %ld ms, write timeout: %ld ms\n",
1237 info->erase_blk_tout,
1238 info->write_tout);
1239 if (info->buffer_size > 1) {
1240 printf (" Buffer write timeout: %ld ms, "
1241 "buffer size: %d bytes\n",
1242 info->buffer_write_tout,
1243 info->buffer_size);
1244 }
wdenk2cefd152004-02-08 22:55:38 +00001245
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001246 puts ("\n Sector Start Addresses:");
1247 for (i = 0; i < info->sector_count; ++i) {
Kim Phillipsc8836f12010-07-26 18:35:39 -05001248 if (ctrlc())
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001249 break;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001250 if ((i % 5) == 0)
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001251 putc('\n');
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001252#ifdef CONFIG_SYS_FLASH_EMPTY_INFO
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001253 /* print empty and read-only info */
1254 printf (" %08lX %c %s ",
1255 info->start[i],
Stefan Roeseb6f508d2010-08-13 09:36:36 +02001256 sector_erased(info, i) ? 'E' : ' ',
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001257 info->protect[i] ? "RO" : " ");
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001258#else /* ! CONFIG_SYS_FLASH_EMPTY_INFO */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001259 printf (" %08lX %s ",
1260 info->start[i],
1261 info->protect[i] ? "RO" : " ");
wdenke65527f2004-02-12 00:47:09 +00001262#endif
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001263 }
1264 putc ('\n');
1265 return;
wdenk2cefd152004-02-08 22:55:38 +00001266}
1267
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001268/*-----------------------------------------------------------------------
Jerry Van Barenaae73572008-03-08 13:48:01 -05001269 * This is used in a few places in write_buf() to show programming
1270 * progress. Making it a function is nasty because it needs to do side
1271 * effect updates to digit and dots. Repeated code is nasty too, so
1272 * we define it once here.
1273 */
Stefan Roese7758c162008-03-19 07:09:26 +01001274#ifdef CONFIG_FLASH_SHOW_PROGRESS
1275#define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub) \
Piotr Ziecik2a7493c2008-11-17 15:49:32 +01001276 if (flash_verbose) { \
1277 dots -= dots_sub; \
1278 if ((scale > 0) && (dots <= 0)) { \
1279 if ((digit % 5) == 0) \
1280 printf ("%d", digit / 5); \
1281 else \
1282 putc ('.'); \
1283 digit--; \
1284 dots += scale; \
1285 } \
Jerry Van Barenaae73572008-03-08 13:48:01 -05001286 }
Stefan Roese7758c162008-03-19 07:09:26 +01001287#else
1288#define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub)
1289#endif
Jerry Van Barenaae73572008-03-08 13:48:01 -05001290
1291/*-----------------------------------------------------------------------
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001292 * Copy memory to flash, returns:
1293 * 0 - OK
1294 * 1 - write timeout
1295 * 2 - Flash not erased
wdenk2cefd152004-02-08 22:55:38 +00001296 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001297int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
wdenk2cefd152004-02-08 22:55:38 +00001298{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001299 ulong wp;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001300 uchar *p;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001301 int aln;
wdenk2cefd152004-02-08 22:55:38 +00001302 cfiword_t cword;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001303 int i, rc;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001304#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001305 int buffered_size;
wdenk2cefd152004-02-08 22:55:38 +00001306#endif
Jerry Van Barenaae73572008-03-08 13:48:01 -05001307#ifdef CONFIG_FLASH_SHOW_PROGRESS
1308 int digit = CONFIG_FLASH_SHOW_PROGRESS;
1309 int scale = 0;
1310 int dots = 0;
1311
1312 /*
1313 * Suppress if there are fewer than CONFIG_FLASH_SHOW_PROGRESS writes.
1314 */
1315 if (cnt >= CONFIG_FLASH_SHOW_PROGRESS) {
1316 scale = (int)((cnt + CONFIG_FLASH_SHOW_PROGRESS - 1) /
1317 CONFIG_FLASH_SHOW_PROGRESS);
1318 }
1319#endif
1320
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001321 /* get lower aligned address */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001322 wp = (addr & ~(info->portwidth - 1));
Haiying Wangc123a382007-02-21 16:52:31 +01001323
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001324 /* handle unaligned start */
1325 if ((aln = addr - wp) != 0) {
1326 cword.l = 0;
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001327 p = (uchar *)wp;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001328 for (i = 0; i < aln; ++i)
1329 flash_add_byte (info, &cword, flash_read8(p + i));
wdenk2cefd152004-02-08 22:55:38 +00001330
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001331 for (; (i < info->portwidth) && (cnt > 0); i++) {
1332 flash_add_byte (info, &cword, *src++);
1333 cnt--;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001334 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001335 for (; (cnt == 0) && (i < info->portwidth); ++i)
1336 flash_add_byte (info, &cword, flash_read8(p + i));
1337
1338 rc = flash_write_cfiword (info, wp, cword);
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001339 if (rc != 0)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001340 return rc;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001341
1342 wp += i;
Stefan Roese7758c162008-03-19 07:09:26 +01001343 FLASH_SHOW_PROGRESS(scale, dots, digit, i);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001344 }
1345
1346 /* handle the aligned part */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001347#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001348 buffered_size = (info->portwidth / info->chipwidth);
1349 buffered_size *= info->buffer_size;
1350 while (cnt >= info->portwidth) {
1351 /* prohibit buffer write when buffer_size is 1 */
1352 if (info->buffer_size == 1) {
1353 cword.l = 0;
1354 for (i = 0; i < info->portwidth; i++)
1355 flash_add_byte (info, &cword, *src++);
1356 if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
1357 return rc;
1358 wp += info->portwidth;
1359 cnt -= info->portwidth;
1360 continue;
1361 }
1362
1363 /* write buffer until next buffered_size aligned boundary */
1364 i = buffered_size - (wp % buffered_size);
1365 if (i > cnt)
1366 i = cnt;
1367 if ((rc = flash_write_cfibuffer (info, wp, src, i)) != ERR_OK)
1368 return rc;
1369 i -= i & (info->portwidth - 1);
1370 wp += i;
1371 src += i;
1372 cnt -= i;
Stefan Roese7758c162008-03-19 07:09:26 +01001373 FLASH_SHOW_PROGRESS(scale, dots, digit, i);
Joe Hershberger497c32f2012-08-17 15:36:41 -05001374 /* Only check every once in a while */
1375 if ((cnt & 0xFFFF) < buffered_size && ctrlc())
1376 return ERR_ABORTED;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001377 }
1378#else
1379 while (cnt >= info->portwidth) {
1380 cword.l = 0;
1381 for (i = 0; i < info->portwidth; i++) {
1382 flash_add_byte (info, &cword, *src++);
1383 }
1384 if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
1385 return rc;
1386 wp += info->portwidth;
1387 cnt -= info->portwidth;
Stefan Roese7758c162008-03-19 07:09:26 +01001388 FLASH_SHOW_PROGRESS(scale, dots, digit, info->portwidth);
Joe Hershberger497c32f2012-08-17 15:36:41 -05001389 /* Only check every once in a while */
1390 if ((cnt & 0xFFFF) < info->portwidth && ctrlc())
1391 return ERR_ABORTED;
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001392 }
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001393#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */
Jerry Van Barenaae73572008-03-08 13:48:01 -05001394
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001395 if (cnt == 0) {
1396 return (0);
1397 }
1398
1399 /*
1400 * handle unaligned tail bytes
1401 */
1402 cword.l = 0;
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001403 p = (uchar *)wp;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001404 for (i = 0; (i < info->portwidth) && (cnt > 0); ++i) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001405 flash_add_byte (info, &cword, *src++);
1406 --cnt;
1407 }
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001408 for (; i < info->portwidth; ++i)
1409 flash_add_byte (info, &cword, flash_read8(p + i));
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001410
1411 return flash_write_cfiword (info, wp, cword);
wdenk2cefd152004-02-08 22:55:38 +00001412}
wdenke65527f2004-02-12 00:47:09 +00001413
Stefan Roese92b1bca2012-12-06 15:44:09 +01001414static inline int manufact_match(flash_info_t *info, u32 manu)
1415{
1416 return info->manufacturer_id == ((manu & FLASH_VENDMASK) >> 16);
1417}
1418
wdenk2cefd152004-02-08 22:55:38 +00001419/*-----------------------------------------------------------------------
1420 */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001421#ifdef CONFIG_SYS_FLASH_PROTECTION
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001422
Holger Brunck94c302d2012-08-09 10:22:41 +02001423static int cfi_protect_bugfix(flash_info_t *info, long sector, int prot)
1424{
Stefan Roese92b1bca2012-12-06 15:44:09 +01001425 if (manufact_match(info, INTEL_MANUFACT)
Kim Phillipsd303b862012-10-29 13:34:45 +00001426 && info->device_id == NUMONYX_256MBIT) {
Holger Brunck94c302d2012-08-09 10:22:41 +02001427 /*
1428 * see errata called
1429 * "Numonyx Axcell P33/P30 Specification Update" :)
1430 */
1431 flash_write_cmd(info, sector, 0, FLASH_CMD_READ_ID);
1432 if (!flash_isequal(info, sector, FLASH_OFFSET_PROTECT,
1433 prot)) {
1434 /*
1435 * cmd must come before FLASH_CMD_PROTECT + 20us
1436 * Disable interrupts which might cause a timeout here.
1437 */
1438 int flag = disable_interrupts();
1439 unsigned short cmd;
1440
1441 if (prot)
1442 cmd = FLASH_CMD_PROTECT_SET;
1443 else
1444 cmd = FLASH_CMD_PROTECT_CLEAR;
1445 flash_write_cmd(info, sector, 0,
1446 FLASH_CMD_PROTECT);
1447 flash_write_cmd(info, sector, 0, cmd);
1448 /* re-enable interrupts if necessary */
1449 if (flag)
1450 enable_interrupts();
1451 }
1452 return 1;
1453 }
1454 return 0;
1455}
1456
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001457int flash_real_protect (flash_info_t * info, long sector, int prot)
wdenk2cefd152004-02-08 22:55:38 +00001458{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001459 int retcode = 0;
wdenke65527f2004-02-12 00:47:09 +00001460
Rafael Campos13d2b612008-07-31 10:22:20 +02001461 switch (info->vendor) {
1462 case CFI_CMDSET_INTEL_PROG_REGIONS:
1463 case CFI_CMDSET_INTEL_STANDARD:
Nick Spenceec81b472008-08-19 22:21:16 -07001464 case CFI_CMDSET_INTEL_EXTENDED:
Holger Brunck94c302d2012-08-09 10:22:41 +02001465 if (!cfi_protect_bugfix(info, sector, prot)) {
1466 flash_write_cmd(info, sector, 0,
1467 FLASH_CMD_CLEAR_STATUS);
1468 flash_write_cmd(info, sector, 0,
1469 FLASH_CMD_PROTECT);
Philippe De Muyterca6cd162010-08-17 18:40:25 +02001470 if (prot)
Holger Brunck94c302d2012-08-09 10:22:41 +02001471 flash_write_cmd(info, sector, 0,
1472 FLASH_CMD_PROTECT_SET);
Philippe De Muyterca6cd162010-08-17 18:40:25 +02001473 else
Holger Brunck94c302d2012-08-09 10:22:41 +02001474 flash_write_cmd(info, sector, 0,
1475 FLASH_CMD_PROTECT_CLEAR);
Philippe De Muyterca6cd162010-08-17 18:40:25 +02001476
Philippe De Muyterca6cd162010-08-17 18:40:25 +02001477 }
Rafael Campos13d2b612008-07-31 10:22:20 +02001478 break;
1479 case CFI_CMDSET_AMD_EXTENDED:
1480 case CFI_CMDSET_AMD_STANDARD:
Rafael Campos13d2b612008-07-31 10:22:20 +02001481 /* U-Boot only checks the first byte */
Stefan Roese92b1bca2012-12-06 15:44:09 +01001482 if (manufact_match(info, ATM_MANUFACT)) {
Rafael Campos13d2b612008-07-31 10:22:20 +02001483 if (prot) {
1484 flash_unlock_seq (info, 0);
1485 flash_write_cmd (info, 0,
1486 info->addr_unlock1,
1487 ATM_CMD_SOFTLOCK_START);
1488 flash_unlock_seq (info, 0);
1489 flash_write_cmd (info, sector, 0,
1490 ATM_CMD_LOCK_SECT);
1491 } else {
1492 flash_write_cmd (info, 0,
1493 info->addr_unlock1,
1494 AMD_CMD_UNLOCK_START);
1495 if (info->device_id == ATM_ID_BV6416)
1496 flash_write_cmd (info, sector,
1497 0, ATM_CMD_UNLOCK_SECT);
1498 }
1499 }
Stefan Roese7de65842012-12-06 15:44:11 +01001500 if (info->legacy_unlock) {
Anatolij Gustschin041b04f2012-08-09 08:18:12 +02001501 int flag = disable_interrupts();
1502 int lock_flag;
1503
1504 flash_unlock_seq(info, 0);
1505 flash_write_cmd(info, 0, info->addr_unlock1,
1506 AMD_CMD_SET_PPB_ENTRY);
1507 lock_flag = flash_isset(info, sector, 0, 0x01);
1508 if (prot) {
1509 if (lock_flag) {
1510 flash_write_cmd(info, sector, 0,
1511 AMD_CMD_PPB_LOCK_BC1);
1512 flash_write_cmd(info, sector, 0,
1513 AMD_CMD_PPB_LOCK_BC2);
1514 }
1515 debug("sector %ld %slocked\n", sector,
1516 lock_flag ? "" : "already ");
1517 } else {
1518 if (!lock_flag) {
1519 debug("unlock %ld\n", sector);
1520 flash_write_cmd(info, 0, 0,
1521 AMD_CMD_PPB_UNLOCK_BC1);
1522 flash_write_cmd(info, 0, 0,
1523 AMD_CMD_PPB_UNLOCK_BC2);
1524 }
1525 debug("sector %ld %sunlocked\n", sector,
1526 !lock_flag ? "" : "already ");
1527 }
1528 if (flag)
1529 enable_interrupts();
1530
1531 if (flash_status_check(info, sector,
1532 info->erase_blk_tout,
1533 prot ? "protect" : "unprotect"))
1534 printf("status check error\n");
1535
1536 flash_write_cmd(info, 0, 0,
1537 AMD_CMD_SET_PPB_EXIT_BC1);
1538 flash_write_cmd(info, 0, 0,
1539 AMD_CMD_SET_PPB_EXIT_BC2);
1540 }
Rafael Campos13d2b612008-07-31 10:22:20 +02001541 break;
TsiChung Liewb8c19292008-08-19 16:53:39 +00001542#ifdef CONFIG_FLASH_CFI_LEGACY
1543 case CFI_CMDSET_AMD_LEGACY:
1544 flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
1545 flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT);
1546 if (prot)
1547 flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET);
1548 else
1549 flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
1550#endif
Rafael Campos13d2b612008-07-31 10:22:20 +02001551 };
wdenk2cefd152004-02-08 22:55:38 +00001552
Stefan Roese5215df12010-10-25 18:31:29 +02001553 /*
1554 * Flash needs to be in status register read mode for
1555 * flash_full_status_check() to work correctly
1556 */
1557 flash_write_cmd(info, sector, 0, FLASH_CMD_READ_STATUS);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001558 if ((retcode =
1559 flash_full_status_check (info, sector, info->erase_blk_tout,
1560 prot ? "protect" : "unprotect")) == 0) {
wdenke65527f2004-02-12 00:47:09 +00001561
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001562 info->protect[sector] = prot;
1563
1564 /*
1565 * On some of Intel's flash chips (marked via legacy_unlock)
1566 * unprotect unprotects all locking.
1567 */
1568 if ((prot == 0) && (info->legacy_unlock)) {
1569 flash_sect_t i;
1570
1571 for (i = 0; i < info->sector_count; i++) {
1572 if (info->protect[i])
1573 flash_real_protect (info, i, 1);
1574 }
wdenk2cefd152004-02-08 22:55:38 +00001575 }
wdenk2cefd152004-02-08 22:55:38 +00001576 }
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001577 return retcode;
wdenk2cefd152004-02-08 22:55:38 +00001578}
wdenke65527f2004-02-12 00:47:09 +00001579
wdenk2cefd152004-02-08 22:55:38 +00001580/*-----------------------------------------------------------------------
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001581 * flash_read_user_serial - read the OneTimeProgramming cells
wdenk2cefd152004-02-08 22:55:38 +00001582 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001583void flash_read_user_serial (flash_info_t * info, void *buffer, int offset,
1584 int len)
wdenk2cefd152004-02-08 22:55:38 +00001585{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001586 uchar *src;
1587 uchar *dst;
wdenke65527f2004-02-12 00:47:09 +00001588
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001589 dst = buffer;
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001590 src = flash_map (info, 0, FLASH_OFFSET_USER_PROTECTION);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001591 flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
1592 memcpy (dst, src + offset, len);
1593 flash_write_cmd (info, 0, 0, info->cmd_reset);
Aaron Williamsffcef2f2011-04-12 00:59:04 -07001594 udelay(1);
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001595 flash_unmap(info, 0, FLASH_OFFSET_USER_PROTECTION, src);
wdenk2cefd152004-02-08 22:55:38 +00001596}
1597
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001598/*
1599 * flash_read_factory_serial - read the device Id from the protection area
wdenk2cefd152004-02-08 22:55:38 +00001600 */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001601void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset,
1602 int len)
wdenk2cefd152004-02-08 22:55:38 +00001603{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001604 uchar *src;
wdenke65527f2004-02-12 00:47:09 +00001605
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001606 src = flash_map (info, 0, FLASH_OFFSET_INTEL_PROTECTION);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001607 flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
1608 memcpy (buffer, src + offset, len);
1609 flash_write_cmd (info, 0, 0, info->cmd_reset);
Aaron Williamsffcef2f2011-04-12 00:59:04 -07001610 udelay(1);
Haavard Skinnemoene3ea1882007-12-13 12:56:34 +01001611 flash_unmap(info, 0, FLASH_OFFSET_INTEL_PROTECTION, src);
wdenk2cefd152004-02-08 22:55:38 +00001612}
1613
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001614#endif /* CONFIG_SYS_FLASH_PROTECTION */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001615
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001616/*-----------------------------------------------------------------------
1617 * Reverse the order of the erase regions in the CFI QRY structure.
1618 * This is needed for chips that are either a) correctly detected as
1619 * top-boot, or b) buggy.
1620 */
1621static void cfi_reverse_geometry(struct cfi_qry *qry)
1622{
1623 unsigned int i, j;
1624 u32 tmp;
1625
1626 for (i = 0, j = qry->num_erase_regions - 1; i < j; i++, j--) {
Andrew Gabbasovc1592582013-05-14 12:27:52 -05001627 tmp = get_unaligned(&(qry->erase_region_info[i]));
1628 put_unaligned(get_unaligned(&(qry->erase_region_info[j])),
1629 &(qry->erase_region_info[i]));
1630 put_unaligned(tmp, &(qry->erase_region_info[j]));
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001631 }
1632}
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001633
wdenk2cefd152004-02-08 22:55:38 +00001634/*-----------------------------------------------------------------------
Stefan Roese12797482006-11-13 13:55:24 +01001635 * read jedec ids from device and set corresponding fields in info struct
1636 *
1637 * Note: assume cfi->vendor, cfi->portwidth and cfi->chipwidth are correct
1638 *
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001639 */
1640static void cmdset_intel_read_jedec_ids(flash_info_t *info)
1641{
1642 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
Aaron Williamsffcef2f2011-04-12 00:59:04 -07001643 udelay(1);
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001644 flash_write_cmd(info, 0, 0, FLASH_CMD_READ_ID);
1645 udelay(1000); /* some flash are slow to respond */
1646 info->manufacturer_id = flash_read_uchar (info,
1647 FLASH_OFFSET_MANUFACTURER_ID);
Philippe De Muyter35bc0812010-08-10 16:54:52 +02001648 info->device_id = (info->chipwidth == FLASH_CFI_16BIT) ?
1649 flash_read_word (info, FLASH_OFFSET_DEVICE_ID) :
1650 flash_read_uchar (info, FLASH_OFFSET_DEVICE_ID);
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001651 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
1652}
1653
1654static int cmdset_intel_init(flash_info_t *info, struct cfi_qry *qry)
1655{
1656 info->cmd_reset = FLASH_CMD_RESET;
1657
1658 cmdset_intel_read_jedec_ids(info);
1659 flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI);
1660
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001661#ifdef CONFIG_SYS_FLASH_PROTECTION
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001662 /* read legacy lock/unlock bit from intel flash */
1663 if (info->ext_addr) {
1664 info->legacy_unlock = flash_read_uchar (info,
1665 info->ext_addr + 5) & 0x08;
1666 }
1667#endif
1668
1669 return 0;
1670}
1671
1672static void cmdset_amd_read_jedec_ids(flash_info_t *info)
1673{
Niklaus Gigerf447f712009-07-22 17:13:24 +02001674 ushort bankId = 0;
1675 uchar manuId;
1676
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001677 flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
1678 flash_unlock_seq(info, 0);
1679 flash_write_cmd(info, 0, info->addr_unlock1, FLASH_CMD_READ_ID);
1680 udelay(1000); /* some flash are slow to respond */
Tor Krill7f2a3052008-03-28 11:29:10 +01001681
Niklaus Gigerf447f712009-07-22 17:13:24 +02001682 manuId = flash_read_uchar (info, FLASH_OFFSET_MANUFACTURER_ID);
1683 /* JEDEC JEP106Z specifies ID codes up to bank 7 */
1684 while (manuId == FLASH_CONTINUATION_CODE && bankId < 0x800) {
1685 bankId += 0x100;
1686 manuId = flash_read_uchar (info,
1687 bankId | FLASH_OFFSET_MANUFACTURER_ID);
1688 }
1689 info->manufacturer_id = manuId;
Tor Krill7f2a3052008-03-28 11:29:10 +01001690
1691 switch (info->chipwidth){
1692 case FLASH_CFI_8BIT:
1693 info->device_id = flash_read_uchar (info,
1694 FLASH_OFFSET_DEVICE_ID);
1695 if (info->device_id == 0x7E) {
1696 /* AMD 3-byte (expanded) device ids */
1697 info->device_id2 = flash_read_uchar (info,
1698 FLASH_OFFSET_DEVICE_ID2);
1699 info->device_id2 <<= 8;
1700 info->device_id2 |= flash_read_uchar (info,
1701 FLASH_OFFSET_DEVICE_ID3);
1702 }
1703 break;
1704 case FLASH_CFI_16BIT:
1705 info->device_id = flash_read_word (info,
1706 FLASH_OFFSET_DEVICE_ID);
Heiko Schocher27cea502011-04-11 14:16:19 +02001707 if ((info->device_id & 0xff) == 0x7E) {
1708 /* AMD 3-byte (expanded) device ids */
1709 info->device_id2 = flash_read_uchar (info,
1710 FLASH_OFFSET_DEVICE_ID2);
1711 info->device_id2 <<= 8;
1712 info->device_id2 |= flash_read_uchar (info,
1713 FLASH_OFFSET_DEVICE_ID3);
1714 }
Tor Krill7f2a3052008-03-28 11:29:10 +01001715 break;
1716 default:
1717 break;
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001718 }
1719 flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
Aaron Williamsffcef2f2011-04-12 00:59:04 -07001720 udelay(1);
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001721}
1722
1723static int cmdset_amd_init(flash_info_t *info, struct cfi_qry *qry)
1724{
1725 info->cmd_reset = AMD_CMD_RESET;
Angelo Dureghello7ba30282012-12-01 01:14:18 +01001726 info->cmd_erase_sector = AMD_CMD_ERASE_SECTOR;
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001727
1728 cmdset_amd_read_jedec_ids(info);
1729 flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI);
1730
Anatolij Gustschin041b04f2012-08-09 08:18:12 +02001731#ifdef CONFIG_SYS_FLASH_PROTECTION
Stefan Roese7de65842012-12-06 15:44:11 +01001732 if (info->ext_addr) {
1733 /* read sector protect/unprotect scheme (at 0x49) */
1734 if (flash_read_uchar(info, info->ext_addr + 9) == 0x8)
Anatolij Gustschin041b04f2012-08-09 08:18:12 +02001735 info->legacy_unlock = 1;
1736 }
1737#endif
1738
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01001739 return 0;
1740}
1741
1742#ifdef CONFIG_FLASH_CFI_LEGACY
Stefan Roese12797482006-11-13 13:55:24 +01001743static void flash_read_jedec_ids (flash_info_t * info)
1744{
1745 info->manufacturer_id = 0;
1746 info->device_id = 0;
1747 info->device_id2 = 0;
1748
1749 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04001750 case CFI_CMDSET_INTEL_PROG_REGIONS:
Stefan Roese12797482006-11-13 13:55:24 +01001751 case CFI_CMDSET_INTEL_STANDARD:
1752 case CFI_CMDSET_INTEL_EXTENDED:
Michael Schwingen5fb0aa42008-01-12 20:29:47 +01001753 cmdset_intel_read_jedec_ids(info);
Stefan Roese12797482006-11-13 13:55:24 +01001754 break;
1755 case CFI_CMDSET_AMD_STANDARD:
1756 case CFI_CMDSET_AMD_EXTENDED:
Michael Schwingen5fb0aa42008-01-12 20:29:47 +01001757 cmdset_amd_read_jedec_ids(info);
Stefan Roese12797482006-11-13 13:55:24 +01001758 break;
1759 default:
1760 break;
1761 }
1762}
1763
1764/*-----------------------------------------------------------------------
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001765 * Call board code to request info about non-CFI flash.
1766 * board_flash_get_legacy needs to fill in at least:
1767 * info->portwidth, info->chipwidth and info->interface for Jedec probing.
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001768 */
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001769static int flash_detect_legacy(phys_addr_t base, int banknum)
wdenk2cefd152004-02-08 22:55:38 +00001770{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001771 flash_info_t *info = &flash_info[banknum];
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001772
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001773 if (board_flash_get_legacy(base, banknum, info)) {
1774 /* board code may have filled info completely. If not, we
1775 use JEDEC ID probing. */
1776 if (!info->vendor) {
1777 int modes[] = {
1778 CFI_CMDSET_AMD_STANDARD,
1779 CFI_CMDSET_INTEL_STANDARD
1780 };
1781 int i;
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001782
Axel Lin85706c82013-06-23 00:56:46 +08001783 for (i = 0; i < ARRAY_SIZE(modes); i++) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001784 info->vendor = modes[i];
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001785 info->start[0] =
1786 (ulong)map_physmem(base,
Stefan Roeseb8443702009-02-05 11:44:52 +01001787 info->portwidth,
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001788 MAP_NOCACHE);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001789 if (info->portwidth == FLASH_CFI_8BIT
1790 && info->interface == FLASH_CFI_X8X16) {
1791 info->addr_unlock1 = 0x2AAA;
1792 info->addr_unlock2 = 0x5555;
1793 } else {
1794 info->addr_unlock1 = 0x5555;
1795 info->addr_unlock2 = 0x2AAA;
1796 }
1797 flash_read_jedec_ids(info);
1798 debug("JEDEC PROBE: ID %x %x %x\n",
1799 info->manufacturer_id,
1800 info->device_id,
1801 info->device_id2);
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001802 if (jedec_flash_match(info, info->start[0]))
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001803 break;
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001804 else
Stefan Roeseb8443702009-02-05 11:44:52 +01001805 unmap_physmem((void *)info->start[0],
Kuo-Jung Su7a939fe2013-07-04 11:40:36 +08001806 info->portwidth);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001807 }
1808 }
1809
1810 switch(info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04001811 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001812 case CFI_CMDSET_INTEL_STANDARD:
1813 case CFI_CMDSET_INTEL_EXTENDED:
1814 info->cmd_reset = FLASH_CMD_RESET;
1815 break;
1816 case CFI_CMDSET_AMD_STANDARD:
1817 case CFI_CMDSET_AMD_EXTENDED:
1818 case CFI_CMDSET_AMD_LEGACY:
1819 info->cmd_reset = AMD_CMD_RESET;
1820 break;
1821 }
1822 info->flash_id = FLASH_MAN_CFI;
1823 return 1;
1824 }
1825 return 0; /* use CFI */
1826}
1827#else
Becky Bruce9d1f6af2009-02-02 16:34:51 -06001828static inline int flash_detect_legacy(phys_addr_t base, int banknum)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001829{
1830 return 0; /* use CFI */
1831}
1832#endif
1833
1834/*-----------------------------------------------------------------------
1835 * detect if flash is compatible with the Common Flash Interface (CFI)
1836 * http://www.jedec.org/download/search/jesd68.pdf
1837 */
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01001838static void flash_read_cfi (flash_info_t *info, void *buf,
1839 unsigned int start, size_t len)
1840{
1841 u8 *p = buf;
1842 unsigned int i;
1843
1844 for (i = 0; i < len; i++)
Stefan Roese70a90b72013-04-12 19:04:54 +02001845 p[i] = flash_read_uchar(info, start + i);
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01001846}
Stefan Roese6e83e342009-10-27 15:15:55 +01001847
Kim Phillipsd303b862012-10-29 13:34:45 +00001848static void __flash_cmd_reset(flash_info_t *info)
Stefan Roese6e83e342009-10-27 15:15:55 +01001849{
1850 /*
1851 * We do not yet know what kind of commandset to use, so we issue
1852 * the reset command in both Intel and AMD variants, in the hope
1853 * that AMD flash roms ignore the Intel command.
1854 */
1855 flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
Aaron Williamsffcef2f2011-04-12 00:59:04 -07001856 udelay(1);
Stefan Roese6e83e342009-10-27 15:15:55 +01001857 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
1858}
1859void flash_cmd_reset(flash_info_t *info)
1860 __attribute__((weak,alias("__flash_cmd_reset")));
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01001861
1862static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001863{
1864 int cfi_offset;
1865
Stefan Roese70a90b72013-04-12 19:04:54 +02001866 /* Issue FLASH reset command */
1867 flash_cmd_reset(info);
1868
Axel Lin85706c82013-06-23 00:56:46 +08001869 for (cfi_offset = 0; cfi_offset < ARRAY_SIZE(flash_offset_cfi);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001870 cfi_offset++) {
1871 flash_write_cmd (info, 0, flash_offset_cfi[cfi_offset],
1872 FLASH_CMD_CFI);
Stefan Roese70a90b72013-04-12 19:04:54 +02001873 if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q')
1874 && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R')
1875 && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01001876 flash_read_cfi(info, qry, FLASH_OFFSET_CFI_RESP,
1877 sizeof(struct cfi_qry));
1878 info->interface = le16_to_cpu(qry->interface_desc);
Stefan Roese70a90b72013-04-12 19:04:54 +02001879
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02001880 info->cfi_offset = flash_offset_cfi[cfi_offset];
1881 debug ("device interface is %d\n",
1882 info->interface);
1883 debug ("found port %d chip %d ",
1884 info->portwidth, info->chipwidth);
1885 debug ("port %d bits chip %d bits\n",
1886 info->portwidth << CFI_FLASH_SHIFT_WIDTH,
1887 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
1888
1889 /* calculate command offsets as in the Linux driver */
Stefan Roese70a90b72013-04-12 19:04:54 +02001890 info->addr_unlock1 = 0x555;
1891 info->addr_unlock2 = 0x2aa;
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001892
1893 /*
1894 * modify the unlock address if we are
1895 * in compatibility mode
1896 */
1897 if ( /* x8/x16 in x8 mode */
1898 ((info->chipwidth == FLASH_CFI_BY8) &&
1899 (info->interface == FLASH_CFI_X8X16)) ||
1900 /* x16/x32 in x16 mode */
1901 ((info->chipwidth == FLASH_CFI_BY16) &&
1902 (info->interface == FLASH_CFI_X16X32)))
1903 {
1904 info->addr_unlock1 = 0xaaa;
1905 info->addr_unlock2 = 0x555;
1906 }
1907
1908 info->name = "CFI conformant";
1909 return 1;
1910 }
1911 }
1912
1913 return 0;
1914}
1915
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01001916static int flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001917{
wdenke65527f2004-02-12 00:47:09 +00001918 debug ("flash detect cfi\n");
wdenk2cefd152004-02-08 22:55:38 +00001919
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001920 for (info->portwidth = CONFIG_SYS_FLASH_CFI_WIDTH;
wdenke65527f2004-02-12 00:47:09 +00001921 info->portwidth <= FLASH_CFI_64BIT; info->portwidth <<= 1) {
1922 for (info->chipwidth = FLASH_CFI_BY8;
1923 info->chipwidth <= info->portwidth;
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001924 info->chipwidth <<= 1)
Stefan Roese70a90b72013-04-12 19:04:54 +02001925 if (__flash_detect_cfi(info, qry))
Haavard Skinnemoend523e392007-12-13 12:56:28 +01001926 return 1;
wdenk2cefd152004-02-08 22:55:38 +00001927 }
wdenke65527f2004-02-12 00:47:09 +00001928 debug ("not found\n");
wdenk2cefd152004-02-08 22:55:38 +00001929 return 0;
1930}
wdenke65527f2004-02-12 00:47:09 +00001931
wdenk2cefd152004-02-08 22:55:38 +00001932/*
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01001933 * Manufacturer-specific quirks. Add workarounds for geometry
1934 * reversal, etc. here.
1935 */
1936static void flash_fixup_amd(flash_info_t *info, struct cfi_qry *qry)
1937{
1938 /* check if flash geometry needs reversal */
1939 if (qry->num_erase_regions > 1) {
1940 /* reverse geometry if top boot part */
1941 if (info->cfi_version < 0x3131) {
1942 /* CFI < 1.1, try to guess from device id */
1943 if ((info->device_id & 0x80) != 0)
1944 cfi_reverse_geometry(qry);
Stefan Roese70a90b72013-04-12 19:04:54 +02001945 } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01001946 /* CFI >= 1.1, deduct from top/bottom flag */
1947 /* note: ext_addr is valid since cfi_version > 0 */
1948 cfi_reverse_geometry(qry);
1949 }
1950 }
1951}
1952
1953static void flash_fixup_atmel(flash_info_t *info, struct cfi_qry *qry)
1954{
1955 int reverse_geometry = 0;
1956
1957 /* Check the "top boot" bit in the PRI */
1958 if (info->ext_addr && !(flash_read_uchar(info, info->ext_addr + 6) & 1))
1959 reverse_geometry = 1;
1960
1961 /* AT49BV6416(T) list the erase regions in the wrong order.
1962 * However, the device ID is identical with the non-broken
Ulf Samuelsson07f9b4e2009-03-27 23:26:43 +01001963 * AT49BV642D they differ in the high byte.
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01001964 */
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01001965 if (info->device_id == 0xd6 || info->device_id == 0xd2)
1966 reverse_geometry = !reverse_geometry;
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01001967
1968 if (reverse_geometry)
1969 cfi_reverse_geometry(qry);
1970}
1971
Richard Retanubunbe4dca22009-01-14 08:44:26 -05001972static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry)
1973{
1974 /* check if flash geometry needs reversal */
1975 if (qry->num_erase_regions > 1) {
1976 /* reverse geometry if top boot part */
1977 if (info->cfi_version < 0x3131) {
Mike Frysinger02a37862011-04-10 16:06:29 -04001978 /* CFI < 1.1, guess by device id */
1979 if (info->device_id == 0x22CA || /* M29W320DT */
1980 info->device_id == 0x2256 || /* M29W320ET */
1981 info->device_id == 0x22D7) { /* M29W800DT */
Richard Retanubunbe4dca22009-01-14 08:44:26 -05001982 cfi_reverse_geometry(qry);
1983 }
Mike Frysinger97dd8992011-05-09 18:33:36 -04001984 } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
1985 /* CFI >= 1.1, deduct from top/bottom flag */
1986 /* note: ext_addr is valid since cfi_version > 0 */
1987 cfi_reverse_geometry(qry);
Richard Retanubunbe4dca22009-01-14 08:44:26 -05001988 }
1989 }
1990}
1991
Angelo Dureghello7ba30282012-12-01 01:14:18 +01001992static void flash_fixup_sst(flash_info_t *info, struct cfi_qry *qry)
1993{
1994 /*
1995 * SST, for many recent nor parallel flashes, says they are
1996 * CFI-conformant. This is not true, since qry struct.
1997 * reports a std. AMD command set (0x0002), while SST allows to
1998 * erase two different sector sizes for the same memory.
1999 * 64KB sector (SST call it block) needs 0x30 to be erased.
2000 * 4KB sector (SST call it sector) needs 0x50 to be erased.
2001 * Since CFI query detect the 4KB number of sectors, users expects
2002 * a sector granularity of 4KB, and it is here set.
2003 */
2004 if (info->device_id == 0x5D23 || /* SST39VF3201B */
2005 info->device_id == 0x5C23) { /* SST39VF3202B */
2006 /* set sector granularity to 4KB */
2007 info->cmd_erase_sector=0x50;
2008 }
2009}
2010
Jagannadha Sutradharudu Teki130def32013-03-01 16:54:26 +05302011static void flash_fixup_num(flash_info_t *info, struct cfi_qry *qry)
2012{
2013 /*
2014 * The M29EW devices seem to report the CFI information wrong
2015 * when it's in 8 bit mode.
2016 * There's an app note from Numonyx on this issue.
2017 * So adjust the buffer size for M29EW while operating in 8-bit mode
2018 */
2019 if (((qry->max_buf_write_size) > 0x8) &&
2020 (info->device_id == 0x7E) &&
2021 (info->device_id2 == 0x2201 ||
2022 info->device_id2 == 0x2301 ||
2023 info->device_id2 == 0x2801 ||
2024 info->device_id2 == 0x4801)) {
2025 debug("Adjusted buffer size on Numonyx flash"
2026 " M29EW family in 8 bit mode\n");
2027 qry->max_buf_write_size = 0x8;
2028 }
2029}
2030
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01002031/*
wdenk2cefd152004-02-08 22:55:38 +00002032 * The following code cannot be run from FLASH!
2033 *
2034 */
Anatolij Gustschin6acb77b2010-11-28 02:13:33 +01002035ulong flash_get_size (phys_addr_t base, int banknum)
wdenk2cefd152004-02-08 22:55:38 +00002036{
wdenke65527f2004-02-12 00:47:09 +00002037 flash_info_t *info = &flash_info[banknum];
wdenk2cefd152004-02-08 22:55:38 +00002038 int i, j;
2039 flash_sect_t sect_cnt;
Becky Bruce9d1f6af2009-02-02 16:34:51 -06002040 phys_addr_t sector;
wdenk2cefd152004-02-08 22:55:38 +00002041 unsigned long tmp;
2042 int size_ratio;
2043 uchar num_erase_regions;
wdenke65527f2004-02-12 00:47:09 +00002044 int erase_region_size;
2045 int erase_region_count;
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002046 struct cfi_qry qry;
Anatolij Gustschin6acb77b2010-11-28 02:13:33 +01002047 unsigned long max_size;
Stefan Roese12797482006-11-13 13:55:24 +01002048
Kumar Gala899032b2008-05-15 15:13:08 -05002049 memset(&qry, 0, sizeof(qry));
2050
Stefan Roese12797482006-11-13 13:55:24 +01002051 info->ext_addr = 0;
2052 info->cfi_version = 0;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002053#ifdef CONFIG_SYS_FLASH_PROTECTION
Stefan Roeseefef95b2006-04-01 13:41:03 +02002054 info->legacy_unlock = 0;
2055#endif
wdenk2cefd152004-02-08 22:55:38 +00002056
Becky Bruce9d1f6af2009-02-02 16:34:51 -06002057 info->start[0] = (ulong)map_physmem(base, info->portwidth, MAP_NOCACHE);
wdenk2cefd152004-02-08 22:55:38 +00002058
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002059 if (flash_detect_cfi (info, &qry)) {
Andrew Gabbasovc1592582013-05-14 12:27:52 -05002060 info->vendor = le16_to_cpu(get_unaligned(&(qry.p_id)));
2061 info->ext_addr = le16_to_cpu(get_unaligned(&(qry.p_adr)));
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002062 num_erase_regions = qry.num_erase_regions;
2063
Stefan Roese12797482006-11-13 13:55:24 +01002064 if (info->ext_addr) {
2065 info->cfi_version = (ushort) flash_read_uchar (info,
Stefan Roese70a90b72013-04-12 19:04:54 +02002066 info->ext_addr + 3) << 8;
Stefan Roese12797482006-11-13 13:55:24 +01002067 info->cfi_version |= (ushort) flash_read_uchar (info,
Stefan Roese70a90b72013-04-12 19:04:54 +02002068 info->ext_addr + 4);
Stefan Roese12797482006-11-13 13:55:24 +01002069 }
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002070
wdenke65527f2004-02-12 00:47:09 +00002071#ifdef DEBUG
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002072 flash_printqry (&qry);
wdenke65527f2004-02-12 00:47:09 +00002073#endif
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002074
wdenke65527f2004-02-12 00:47:09 +00002075 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04002076 case CFI_CMDSET_INTEL_PROG_REGIONS:
wdenk2cefd152004-02-08 22:55:38 +00002077 case CFI_CMDSET_INTEL_STANDARD:
2078 case CFI_CMDSET_INTEL_EXTENDED:
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002079 cmdset_intel_init(info, &qry);
wdenk2cefd152004-02-08 22:55:38 +00002080 break;
2081 case CFI_CMDSET_AMD_STANDARD:
2082 case CFI_CMDSET_AMD_EXTENDED:
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002083 cmdset_amd_init(info, &qry);
wdenk2cefd152004-02-08 22:55:38 +00002084 break;
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002085 default:
2086 printf("CFI: Unknown command set 0x%x\n",
2087 info->vendor);
2088 /*
2089 * Unfortunately, this means we don't know how
2090 * to get the chip back to Read mode. Might
2091 * as well try an Intel-style reset...
2092 */
2093 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
2094 return 0;
wdenk2cefd152004-02-08 22:55:38 +00002095 }
wdenk6cfa84e2004-02-10 00:03:41 +00002096
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01002097 /* Do manufacturer-specific fixups */
2098 switch (info->manufacturer_id) {
Mario Schuknecht5c3579e2011-02-21 13:13:14 +01002099 case 0x0001: /* AMD */
2100 case 0x0037: /* AMIC */
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01002101 flash_fixup_amd(info, &qry);
2102 break;
2103 case 0x001f:
2104 flash_fixup_atmel(info, &qry);
2105 break;
Richard Retanubunbe4dca22009-01-14 08:44:26 -05002106 case 0x0020:
2107 flash_fixup_stm(info, &qry);
2108 break;
Angelo Dureghello7ba30282012-12-01 01:14:18 +01002109 case 0x00bf: /* SST */
2110 flash_fixup_sst(info, &qry);
2111 break;
Jagannadha Sutradharudu Teki130def32013-03-01 16:54:26 +05302112 case 0x0089: /* Numonyx */
2113 flash_fixup_num(info, &qry);
2114 break;
Haavard Skinnemoen750ea7f2007-12-14 15:36:18 +01002115 }
2116
wdenke65527f2004-02-12 00:47:09 +00002117 debug ("manufacturer is %d\n", info->vendor);
Stefan Roese12797482006-11-13 13:55:24 +01002118 debug ("manufacturer id is 0x%x\n", info->manufacturer_id);
2119 debug ("device id is 0x%x\n", info->device_id);
2120 debug ("device id2 is 0x%x\n", info->device_id2);
2121 debug ("cfi version is 0x%04x\n", info->cfi_version);
2122
wdenk2cefd152004-02-08 22:55:38 +00002123 size_ratio = info->portwidth / info->chipwidth;
wdenke65527f2004-02-12 00:47:09 +00002124 /* if the chip is x8/x16 reduce the ratio by half */
2125 if ((info->interface == FLASH_CFI_X8X16)
2126 && (info->chipwidth == FLASH_CFI_BY8)) {
2127 size_ratio >>= 1;
2128 }
wdenke65527f2004-02-12 00:47:09 +00002129 debug ("size_ratio %d port %d bits chip %d bits\n",
2130 size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH,
2131 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Ilya Yanok755c1802010-10-21 17:20:12 +02002132 info->size = 1 << qry.dev_size;
2133 /* multiply the size by the number of chips */
2134 info->size *= size_ratio;
Anatolij Gustschin6acb77b2010-11-28 02:13:33 +01002135 max_size = cfi_flash_bank_size(banknum);
Ilya Yanok755c1802010-10-21 17:20:12 +02002136 if (max_size && (info->size > max_size)) {
2137 debug("[truncated from %ldMiB]", info->size >> 20);
2138 info->size = max_size;
2139 }
wdenke65527f2004-02-12 00:47:09 +00002140 debug ("found %d erase regions\n", num_erase_regions);
wdenk2cefd152004-02-08 22:55:38 +00002141 sect_cnt = 0;
2142 sector = base;
wdenke65527f2004-02-12 00:47:09 +00002143 for (i = 0; i < num_erase_regions; i++) {
2144 if (i > NUM_ERASE_REGIONS) {
wdenke537b3b2004-02-23 23:54:43 +00002145 printf ("%d erase regions found, only %d used\n",
2146 num_erase_regions, NUM_ERASE_REGIONS);
wdenk2cefd152004-02-08 22:55:38 +00002147 break;
2148 }
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002149
Andrew Gabbasovc1592582013-05-14 12:27:52 -05002150 tmp = le32_to_cpu(get_unaligned(
2151 &(qry.erase_region_info[i])));
Haavard Skinnemoenc4d478b2007-12-14 15:36:17 +01002152 debug("erase region %u: 0x%08lx\n", i, tmp);
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002153
2154 erase_region_count = (tmp & 0xffff) + 1;
2155 tmp >>= 16;
wdenke65527f2004-02-12 00:47:09 +00002156 erase_region_size =
2157 (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128;
wdenkaeba06f2004-06-09 17:34:58 +00002158 debug ("erase_region_count = %d erase_region_size = %d\n",
wdenke537b3b2004-02-23 23:54:43 +00002159 erase_region_count, erase_region_size);
wdenke65527f2004-02-12 00:47:09 +00002160 for (j = 0; j < erase_region_count; j++) {
Ilya Yanok755c1802010-10-21 17:20:12 +02002161 if (sector - base >= info->size)
2162 break;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002163 if (sect_cnt >= CONFIG_SYS_MAX_FLASH_SECT) {
Michael Schwingen73d044d2007-12-07 23:35:02 +01002164 printf("ERROR: too many flash sectors\n");
2165 break;
2166 }
Becky Bruce9d1f6af2009-02-02 16:34:51 -06002167 info->start[sect_cnt] =
2168 (ulong)map_physmem(sector,
2169 info->portwidth,
2170 MAP_NOCACHE);
wdenk2cefd152004-02-08 22:55:38 +00002171 sector += (erase_region_size * size_ratio);
wdenk26c58432005-01-09 17:12:27 +00002172
2173 /*
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002174 * Only read protection status from
2175 * supported devices (intel...)
wdenk26c58432005-01-09 17:12:27 +00002176 */
2177 switch (info->vendor) {
Vasiliy Leoenenko7d1794c2008-05-07 21:25:33 +04002178 case CFI_CMDSET_INTEL_PROG_REGIONS:
wdenk26c58432005-01-09 17:12:27 +00002179 case CFI_CMDSET_INTEL_EXTENDED:
2180 case CFI_CMDSET_INTEL_STANDARD:
Stefan Roese5215df12010-10-25 18:31:29 +02002181 /*
2182 * Set flash to read-id mode. Otherwise
2183 * reading protected status is not
2184 * guaranteed.
2185 */
2186 flash_write_cmd(info, sect_cnt, 0,
2187 FLASH_CMD_READ_ID);
wdenk26c58432005-01-09 17:12:27 +00002188 info->protect[sect_cnt] =
2189 flash_isset (info, sect_cnt,
2190 FLASH_OFFSET_PROTECT,
2191 FLASH_STATUS_PROTECT);
2192 break;
Stefan Roesebcb33442012-12-06 15:44:10 +01002193 case CFI_CMDSET_AMD_EXTENDED:
2194 case CFI_CMDSET_AMD_STANDARD:
Stefan Roese7de65842012-12-06 15:44:11 +01002195 if (!info->legacy_unlock) {
Stefan Roesebcb33442012-12-06 15:44:10 +01002196 /* default: not protected */
2197 info->protect[sect_cnt] = 0;
2198 break;
2199 }
2200
2201 /* Read protection (PPB) from sector */
2202 flash_write_cmd(info, 0, 0,
2203 info->cmd_reset);
2204 flash_unlock_seq(info, 0);
2205 flash_write_cmd(info, 0,
2206 info->addr_unlock1,
2207 FLASH_CMD_READ_ID);
2208 info->protect[sect_cnt] =
2209 flash_isset(
2210 info, sect_cnt,
2211 FLASH_OFFSET_PROTECT,
2212 FLASH_STATUS_PROTECT);
2213 break;
wdenk26c58432005-01-09 17:12:27 +00002214 default:
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002215 /* default: not protected */
2216 info->protect[sect_cnt] = 0;
wdenk26c58432005-01-09 17:12:27 +00002217 }
2218
wdenk2cefd152004-02-08 22:55:38 +00002219 sect_cnt++;
2220 }
2221 }
2222
2223 info->sector_count = sect_cnt;
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002224 info->buffer_size = 1 << le16_to_cpu(qry.max_buf_write_size);
2225 tmp = 1 << qry.block_erase_timeout_typ;
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002226 info->erase_blk_tout = tmp *
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002227 (1 << qry.block_erase_timeout_max);
2228 tmp = (1 << qry.buf_write_timeout_typ) *
2229 (1 << qry.buf_write_timeout_max);
2230
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002231 /* round up when converting to ms */
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002232 info->buffer_write_tout = (tmp + 999) / 1000;
2233 tmp = (1 << qry.word_write_timeout_typ) *
2234 (1 << qry.word_write_timeout_max);
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002235 /* round up when converting to ms */
Haavard Skinnemoen53baec72007-12-14 15:36:16 +01002236 info->write_tout = (tmp + 999) / 1000;
wdenk2cefd152004-02-08 22:55:38 +00002237 info->flash_id = FLASH_MAN_CFI;
Haavard Skinnemoend523e392007-12-13 12:56:28 +01002238 if ((info->interface == FLASH_CFI_X8X16) &&
2239 (info->chipwidth == FLASH_CFI_BY8)) {
2240 /* XXX - Need to test on x8/x16 in parallel. */
2241 info->portwidth >>= 1;
wdenked2ac4b2004-03-14 18:23:55 +00002242 }
Mike Frysinger59404ee2008-10-02 01:55:38 -04002243
2244 flash_write_cmd (info, 0, 0, info->cmd_reset);
wdenk2cefd152004-02-08 22:55:38 +00002245 }
2246
wdenke65527f2004-02-12 00:47:09 +00002247 return (info->size);
wdenk2cefd152004-02-08 22:55:38 +00002248}
2249
Mike Frysingerc2c093d2010-12-22 09:41:13 -05002250#ifdef CONFIG_FLASH_CFI_MTD
Piotr Ziecik2a7493c2008-11-17 15:49:32 +01002251void flash_set_verbose(uint v)
2252{
2253 flash_verbose = v;
2254}
Mike Frysingerc2c093d2010-12-22 09:41:13 -05002255#endif
Piotr Ziecik2a7493c2008-11-17 15:49:32 +01002256
Stefan Roeseab935642010-10-25 18:31:48 +02002257static void cfi_flash_set_config_reg(u32 base, u16 val)
2258{
2259#ifdef CONFIG_SYS_CFI_FLASH_CONFIG_REGS
2260 /*
2261 * Only set this config register if really defined
2262 * to a valid value (0xffff is invalid)
2263 */
2264 if (val == 0xffff)
2265 return;
2266
2267 /*
2268 * Set configuration register. Data is "encrypted" in the 16 lower
2269 * address bits.
2270 */
2271 flash_write16(FLASH_CMD_SETUP, (void *)(base + (val << 1)));
2272 flash_write16(FLASH_CMD_SET_CR_CONFIRM, (void *)(base + (val << 1)));
2273
2274 /*
2275 * Finally issue reset-command to bring device back to
2276 * read-array mode
2277 */
2278 flash_write16(FLASH_CMD_RESET, (void *)base);
2279#endif
2280}
2281
wdenk2cefd152004-02-08 22:55:38 +00002282/*-----------------------------------------------------------------------
2283 */
Heiko Schocheref0946a2011-04-04 08:10:21 +02002284
2285void flash_protect_default(void)
2286{
Peter Tyser4f3c60d2011-04-13 11:46:56 -05002287#if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST)
2288 int i;
2289 struct apl_s {
2290 ulong start;
2291 ulong size;
2292 } apl[] = CONFIG_SYS_FLASH_AUTOPROTECT_LIST;
2293#endif
2294
Heiko Schocheref0946a2011-04-04 08:10:21 +02002295 /* Monitor protection ON by default */
2296#if (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE) && \
2297 (!defined(CONFIG_MONITOR_IS_IN_RAM))
2298 flash_protect(FLAG_PROTECT_SET,
2299 CONFIG_SYS_MONITOR_BASE,
2300 CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
2301 flash_get_info(CONFIG_SYS_MONITOR_BASE));
2302#endif
2303
2304 /* Environment protection ON by default */
2305#ifdef CONFIG_ENV_IS_IN_FLASH
2306 flash_protect(FLAG_PROTECT_SET,
2307 CONFIG_ENV_ADDR,
2308 CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
2309 flash_get_info(CONFIG_ENV_ADDR));
2310#endif
2311
2312 /* Redundant environment protection ON by default */
2313#ifdef CONFIG_ENV_ADDR_REDUND
2314 flash_protect(FLAG_PROTECT_SET,
2315 CONFIG_ENV_ADDR_REDUND,
2316 CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
2317 flash_get_info(CONFIG_ENV_ADDR_REDUND));
2318#endif
2319
2320#if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST)
Axel Lin85706c82013-06-23 00:56:46 +08002321 for (i = 0; i < ARRAY_SIZE(apl); i++) {
Marek Vasutcb1622e2011-10-21 14:17:05 +00002322 debug("autoprotecting from %08lx to %08lx\n",
Heiko Schocheref0946a2011-04-04 08:10:21 +02002323 apl[i].start, apl[i].start + apl[i].size - 1);
2324 flash_protect(FLAG_PROTECT_SET,
2325 apl[i].start,
2326 apl[i].start + apl[i].size - 1,
2327 flash_get_info(apl[i].start));
2328 }
2329#endif
2330}
2331
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002332unsigned long flash_init (void)
wdenk2cefd152004-02-08 22:55:38 +00002333{
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002334 unsigned long size = 0;
2335 int i;
wdenk2cefd152004-02-08 22:55:38 +00002336
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002337#ifdef CONFIG_SYS_FLASH_PROTECTION
Eric Schumann8f7ee7d2009-03-21 09:59:34 -04002338 /* read environment from EEPROM */
2339 char s[64];
Wolfgang Denk76af2782010-07-24 21:55:43 +02002340 getenv_f("unlock", s, sizeof(s));
Michael Schwingen73d044d2007-12-07 23:35:02 +01002341#endif
wdenk2cefd152004-02-08 22:55:38 +00002342
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002343 /* Init: no FLASHes known */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002344 for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002345 flash_info[i].flash_id = FLASH_UNKNOWN;
wdenk2cefd152004-02-08 22:55:38 +00002346
Stefan Roeseab935642010-10-25 18:31:48 +02002347 /* Optionally write flash configuration register */
2348 cfi_flash_set_config_reg(cfi_flash_bank_addr(i),
2349 cfi_flash_config_reg(i));
2350
Stefan Roese7e7dda82010-08-30 10:11:51 +02002351 if (!flash_detect_legacy(cfi_flash_bank_addr(i), i))
Anatolij Gustschin6acb77b2010-11-28 02:13:33 +01002352 flash_get_size(cfi_flash_bank_addr(i), i);
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002353 size += flash_info[i].size;
2354 if (flash_info[i].flash_id == FLASH_UNKNOWN) {
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002355#ifndef CONFIG_SYS_FLASH_QUIET_TEST
Peter Tyser0b5a2632010-12-28 18:12:05 -06002356 printf ("## Unknown flash on Bank %d "
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002357 "- Size = 0x%08lx = %ld MB\n",
2358 i+1, flash_info[i].size,
John Schmoller61665db2010-09-29 13:49:05 -05002359 flash_info[i].size >> 20);
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002360#endif /* CONFIG_SYS_FLASH_QUIET_TEST */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002361 }
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002362#ifdef CONFIG_SYS_FLASH_PROTECTION
Jeroen Hofstee5a85e892014-06-17 22:47:31 +02002363 else if (strcmp(s, "yes") == 0) {
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002364 /*
2365 * Only the U-Boot image and it's environment
2366 * is protected, all other sectors are
2367 * unprotected (unlocked) if flash hardware
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002368 * protection is used (CONFIG_SYS_FLASH_PROTECTION)
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002369 * and the environment variable "unlock" is
2370 * set to "yes".
2371 */
2372 if (flash_info[i].legacy_unlock) {
2373 int k;
wdenk2cefd152004-02-08 22:55:38 +00002374
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002375 /*
2376 * Disable legacy_unlock temporarily,
2377 * since flash_real_protect would
2378 * relock all other sectors again
2379 * otherwise.
2380 */
2381 flash_info[i].legacy_unlock = 0;
wdenk2cefd152004-02-08 22:55:38 +00002382
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002383 /*
2384 * Legacy unlocking (e.g. Intel J3) ->
2385 * unlock only one sector. This will
2386 * unlock all sectors.
2387 */
2388 flash_real_protect (&flash_info[i], 0, 0);
wdenk2cefd152004-02-08 22:55:38 +00002389
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002390 flash_info[i].legacy_unlock = 1;
wdenk2cefd152004-02-08 22:55:38 +00002391
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002392 /*
2393 * Manually mark other sectors as
2394 * unlocked (unprotected)
2395 */
2396 for (k = 1; k < flash_info[i].sector_count; k++)
2397 flash_info[i].protect[k] = 0;
2398 } else {
2399 /*
2400 * No legancy unlocking -> unlock all sectors
2401 */
2402 flash_protect (FLAG_PROTECT_CLEAR,
2403 flash_info[i].start[0],
2404 flash_info[i].start[0]
2405 + flash_info[i].size - 1,
2406 &flash_info[i]);
Stefan Roesec865e6c2006-02-28 15:29:58 +01002407 }
Stefan Roesec865e6c2006-02-28 15:29:58 +01002408 }
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002409#endif /* CONFIG_SYS_FLASH_PROTECTION */
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002410 }
Stefan Roesec865e6c2006-02-28 15:29:58 +01002411
Heiko Schocheref0946a2011-04-04 08:10:21 +02002412 flash_protect_default();
Piotr Ziecik3e939e92008-11-17 15:57:58 +01002413#ifdef CONFIG_FLASH_CFI_MTD
2414 cfi_mtd_init();
2415#endif
2416
Haavard Skinnemoen6dd763c2007-10-06 18:55:36 +02002417 return (size);
wdenk2cefd152004-02-08 22:55:38 +00002418}