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Macpaul Lin0d1f4742011-10-11 22:33:19 +00001/*
2 * (C) Copyright 2002-2006
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * Copyright (C) 2011 Andes Technology Corporation
6 * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
7 * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
8 *
9 * See file CREDITS for list of people who contributed to this
10 * project.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * MA 02111-1307 USA
26 */
27
28#include <common.h>
29#include <command.h>
30#include <malloc.h>
31#include <stdio_dev.h>
32#include <timestamp.h>
33#include <version.h>
34#include <net.h>
35#include <serial.h>
36#include <nand.h>
37#include <onenand_uboot.h>
38#include <mmc.h>
39
40DECLARE_GLOBAL_DATA_PTR;
41
42ulong monitor_flash_len;
43
44/*
45 * Init Utilities
46 */
47
48#if !defined(CONFIG_BAUDRATE)
49#define CONFIG_BAUDRATE 38400
50#endif
51static int init_baudrate(void)
52{
Macpaul Lin48260952011-10-24 16:43:17 +080053 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
Macpaul Lin0d1f4742011-10-11 22:33:19 +000054 return 0;
55}
56
57/*
58 * WARNING: this code looks "cleaner" than the PowerPC version, but
59 * has the disadvantage that you either get nothing, or everything.
60 * On PowerPC, you might see "DRAM: " before the system hangs - which
61 * gives a simple yet clear indication which part of the
62 * initialization if failing.
63 */
64static int display_dram_config(void)
65{
66 int i;
67
68#ifdef DEBUG
69 puts("RAM Configuration:\n");
70
71 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
72 printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
73 print_size(gd->bd->bi_dram[i].size, "\n");
74 }
75#else
76 ulong size = 0;
77
78 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
79 size += gd->bd->bi_dram[i].size;
80
81 puts("DRAM: ");
82 print_size(size, "\n");
83#endif
84
85 return 0;
86}
87
88#ifndef CONFIG_SYS_NO_FLASH
89static void display_flash_config(ulong size)
90{
91 puts("Flash: ");
92 print_size(size, "\n");
93}
94#endif /* CONFIG_SYS_NO_FLASH */
95
96#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
97#include <pci.h>
98static int nds32_pci_init(void)
99{
100 pci_init();
101 return 0;
102}
103#endif /* CONFIG_CMD_PCI || CONFIG_PCI */
104
105#if defined(CONFIG_PMU) || defined(CONFIG_PCU)
Mike Frysinger1ab1e612012-08-06 13:46:37 +0000106#ifndef CONFIG_SKIP_LOWLEVEL_INIT
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000107static int pmu_init(void)
108{
109#if defined(CONFIG_FTPMU010_POWER)
110#ifdef __NDS32_N1213_43U1H__ /* AG101: internal definition in toolchain */
111 ftpmu010_sdram_clk_disable(CONFIG_SYS_FTPMU010_PDLLCR0_HCLKOUTDIS);
112 ftpmu010_mfpsr_select_dev(FTPMU010_MFPSR_AC97CLKSEL);
113 ftpmu010_sdramhtc_set(CONFIG_SYS_FTPMU010_SDRAMHTC);
114#endif /* __NDS32_N1213_43U1H__ */
115#endif
116 return 0;
117}
118#endif
Mike Frysinger1ab1e612012-08-06 13:46:37 +0000119#endif
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000120
121/*
122 * Breathe some life into the board...
123 *
124 * Initialize a serial port as console, and carry out some hardware
125 * tests.
126 *
127 * The first part of initialization is running from Flash memory;
128 * its main purpose is to initialize the RAM so that we
129 * can relocate the monitor code to RAM.
130 */
131
132/*
133 * All attempts to come up with a "common" initialization sequence
134 * that works for all boards and architectures failed: some of the
135 * requirements are just _too_ different. To get rid of the resulting
136 * mess of board dependent #ifdef'ed code we now make the whole
137 * initialization sequence configurable to the user.
138 *
139 * The requirements for any new initalization function is simple: it
140 * receives a pointer to the "global data" structure as it's only
141 * argument, and returns an integer return code, where 0 means
142 * "continue" and != 0 means "fatal error, hang the system".
143 */
144typedef int (init_fnc_t)(void);
145
146void __dram_init_banksize(void)
147{
148 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
149 gd->bd->bi_dram[0].size = gd->ram_size;
150}
151void dram_init_banksize(void)
152 __attribute__((weak, alias("__dram_init_banksize")));
153
154init_fnc_t *init_sequence[] = {
155#if defined(CONFIG_ARCH_CPU_INIT)
156 arch_cpu_init, /* basic arch cpu dependent setup */
157#endif
158#if defined(CONFIG_PMU) || defined(CONFIG_PCU)
159#ifndef CONFIG_SKIP_LOWLEVEL_INIT
160 pmu_init,
161#endif
162#endif
163 board_init, /* basic board dependent setup */
164#if defined(CONFIG_USE_IRQ)
165 interrupt_init, /* set up exceptions */
166#endif
167 timer_init, /* initialize timer */
168 env_init, /* initialize environment */
169 init_baudrate, /* initialze baudrate settings */
170 serial_init, /* serial communications setup */
171 console_init_f, /* stage 1 init of console */
172#if defined(CONFIG_DISPLAY_BOARDINFO)
173 checkboard, /* display board info */
174#endif
175#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
176 init_func_i2c,
177#endif
178 dram_init, /* configure available RAM banks */
179 display_dram_config,
180 NULL,
181};
182
183void board_init_f(ulong bootflag)
184{
185 bd_t *bd;
186 init_fnc_t **init_fnc_ptr;
187 gd_t *id;
188 ulong addr, addr_sp;
189
190 /* Pointer is writable since we allocated a register for it */
191 gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
192
193 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
194
Simon Glassed70c8f2013-03-14 06:54:53 +0000195 gd->mon_len = (unsigned int)(&__bss_end) - (unsigned int)(&_start);
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000196
197 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
198 if ((*init_fnc_ptr)() != 0)
199 hang();
200 }
201
202 debug("monitor len: %08lX\n", gd->mon_len);
203 /*
204 * Ram is setup, size stored in gd !!
205 */
206 debug("ramsize: %08lX\n", gd->ram_size);
207
208 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
209
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000210 /* round down to next 4 kB limit */
211 addr &= ~(4096 - 1);
212 debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
213
214#ifdef CONFIG_LCD
215#ifdef CONFIG_FB_ADDR
216 gd->fb_base = CONFIG_FB_ADDR;
217#else
218 /* reserve memory for LCD display (always full pages) */
219 addr = lcd_setmem(addr);
220 gd->fb_base = addr;
221#endif /* CONFIG_FB_ADDR */
222#endif /* CONFIG_LCD */
223
224 /*
225 * reserve memory for U-Boot code, data & bss
226 * round down to next 4 kB limit
227 */
228 addr -= gd->mon_len;
229 addr &= ~(4096 - 1);
230
231 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
232
233 /*
234 * reserve memory for malloc() arena
235 */
236 addr_sp = addr - TOTAL_MALLOC_LEN;
237 debug("Reserving %dk for malloc() at: %08lx\n",
238 TOTAL_MALLOC_LEN >> 10, addr_sp);
239 /*
240 * (permanently) allocate a Board Info struct
241 * and a permanent copy of the "global" data
242 */
243 addr_sp -= GENERATED_BD_INFO_SIZE;
244 bd = (bd_t *) addr_sp;
245 gd->bd = bd;
246 memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
247 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
248 GENERATED_BD_INFO_SIZE, addr_sp);
249
250 addr_sp -= GENERATED_GBL_DATA_SIZE;
251 id = (gd_t *) addr_sp;
252 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
253 GENERATED_GBL_DATA_SIZE, addr_sp);
254
255 /* setup stackpointer for exeptions */
256 gd->irq_sp = addr_sp;
257#ifdef CONFIG_USE_IRQ
258 addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
259 debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
260 CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
261#endif
262 /* leave 3 words for abort-stack */
263 addr_sp -= 12;
264
265 /* 8-byte alignment for ABI compliance */
266 addr_sp &= ~0x07;
267 debug("New Stack Pointer is: %08lx\n", addr_sp);
268
269 gd->bd->bi_baudrate = gd->baudrate;
270 /* Ram isn't board specific, so move it to board code ... */
271 dram_init_banksize();
272 display_dram_config(); /* and display it */
273
274 gd->relocaddr = addr;
275 gd->start_addr_sp = addr_sp;
276
277 gd->reloc_off = addr - _TEXT_BASE;
278
279 debug("relocation Offset is: %08lx\n", gd->reloc_off);
280 memcpy(id, (void *)gd, GENERATED_GBL_DATA_SIZE);
281
282 relocate_code(addr_sp, id, addr);
283
284 /* NOTREACHED - relocate_code() does not return */
285}
286
287/*
288 * This is the next part if the initialization sequence: we are now
289 * running from RAM and have a "normal" C environment, i. e. global
290 * data can be written, BSS has been cleared, the stack size in not
291 * that critical any more, etc.
292 */
293void board_init_r(gd_t *id, ulong dest_addr)
294{
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000295 bd_t *bd;
296 ulong malloc_start;
297
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000298 gd = id;
299 bd = gd->bd;
300
301 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
302
303 monitor_flash_len = &_end - &_start;
304 debug("monitor flash len: %08lX\n", monitor_flash_len);
305
306 board_init(); /* Setup chipselects */
307
308#if defined(CONFIG_NEEDS_MANUAL_RELOC)
309 /*
310 * We have to relocate the command table manually
311 */
Marek Vasut69c5e342012-10-12 10:27:04 +0000312 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
313 ll_entry_count(cmd_tbl_t, cmd));
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000314#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
315
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000316 serial_initialize();
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000317
318 debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
319
320 /* The Malloc area is immediately below the monitor copy in DRAM */
321 malloc_start = dest_addr - TOTAL_MALLOC_LEN;
322 mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000323
324#ifndef CONFIG_SYS_NO_FLASH
325 /* configure available FLASH banks */
326 gd->bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
327 gd->bd->bi_flashsize = flash_init();
328 gd->bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + gd->bd->bi_flashsize;
329
330 if (gd->bd->bi_flashsize)
331 display_flash_config(gd->bd->bi_flashsize);
332#endif /* CONFIG_SYS_NO_FLASH */
333
334#if defined(CONFIG_CMD_NAND)
335 puts("NAND: ");
336 nand_init(); /* go init the NAND */
337#endif
338
Macpaul Linb381d912011-11-18 17:01:31 +0800339#if defined(CONFIG_CMD_IDE)
340 puts("IDE: ");
341 ide_init();
342#endif
343
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000344#ifdef CONFIG_GENERIC_MMC
345 puts("MMC: ");
346 mmc_initialize(gd->bd);
347#endif
348
349 /* initialize environment */
350 env_relocate();
351
352#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
Macpaul Line474e772011-11-25 17:14:51 +0800353 puts("PCI: ");
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000354 nds32_pci_init();
355#endif
356
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000357 stdio_init(); /* get the devices list going. */
358
359 jumptable_init();
360
361#if defined(CONFIG_API)
362 /* Initialize API */
363 api_init();
364#endif
365
366 console_init_r(); /* fully init console as a device */
367
368#if defined(CONFIG_ARCH_MISC_INIT)
369 /* miscellaneous arch dependent initialisations */
370 arch_misc_init();
371#endif
372#if defined(CONFIG_MISC_INIT_R)
373 /* miscellaneous platform dependent initialisations */
374 misc_init_r();
375#endif
376
377#if defined(CONFIG_USE_IRQ)
378 /* set up exceptions */
379 interrupt_init();
380 /* enable exceptions */
381 enable_interrupts();
382#endif
383
384 /* Initialize from environment */
Macpaul Lin48260952011-10-24 16:43:17 +0800385 load_addr = getenv_ulong("loadaddr", 16, load_addr);
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000386
Nobuhiro Iwamatsu4298c932012-04-17 16:41:14 +0000387#ifdef CONFIG_BOARD_LATE_INIT
Macpaul Lin0d1f4742011-10-11 22:33:19 +0000388 board_late_init();
389#endif
390
391#if defined(CONFIG_CMD_NET)
392 puts("Net: ");
393
394 eth_initialize(gd->bd);
395#if defined(CONFIG_RESET_PHY_R)
396 debug("Reset Ethernet PHY\n");
397 reset_phy();
398#endif
399#endif
400
401 /* main_loop() can return to retry autoboot, if so just run it again. */
402 for (;;)
403 main_loop();
404
405 /* NOTREACHED - no way out of command loop except booting */
406}
407
408void hang(void)
409{
410 puts("### ERROR ### Please RESET the board ###\n");
411 for (;;)
412 ;
413}