2 * (C) Copyright 2002-2006
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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>
9 * See file CREDITS for list of people who contributed to this
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.
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.
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,
31 #include <stdio_dev.h>
32 #include <timestamp.h>
37 #include <onenand_uboot.h>
40 DECLARE_GLOBAL_DATA_PTR;
42 ulong monitor_flash_len;
48 #if !defined(CONFIG_BAUDRATE)
49 #define CONFIG_BAUDRATE 38400
51 static int init_baudrate(void)
53 char tmp[64]; /* long enough for environment variables */
54 int i = getenv_f("baudrate", tmp, sizeof(tmp));
56 gd->bd->bi_baudrate = gd->baudrate = (i > 0)
57 ? (int) simple_strtoul(tmp, NULL, 10)
64 * WARNING: this code looks "cleaner" than the PowerPC version, but
65 * has the disadvantage that you either get nothing, or everything.
66 * On PowerPC, you might see "DRAM: " before the system hangs - which
67 * gives a simple yet clear indication which part of the
68 * initialization if failing.
70 static int display_dram_config(void)
75 puts("RAM Configuration:\n");
77 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
78 printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
79 print_size(gd->bd->bi_dram[i].size, "\n");
84 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
85 size += gd->bd->bi_dram[i].size;
88 print_size(size, "\n");
94 #ifndef CONFIG_SYS_NO_FLASH
95 static void display_flash_config(ulong size)
98 print_size(size, "\n");
100 #endif /* CONFIG_SYS_NO_FLASH */
102 #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
104 static int nds32_pci_init(void)
109 #endif /* CONFIG_CMD_PCI || CONFIG_PCI */
111 #if defined(CONFIG_PMU) || defined(CONFIG_PCU)
112 static int pmu_init(void)
114 #if defined(CONFIG_FTPMU010_POWER)
115 #ifdef __NDS32_N1213_43U1H__ /* AG101: internal definition in toolchain */
116 ftpmu010_sdram_clk_disable(CONFIG_SYS_FTPMU010_PDLLCR0_HCLKOUTDIS);
117 ftpmu010_mfpsr_select_dev(FTPMU010_MFPSR_AC97CLKSEL);
118 ftpmu010_sdramhtc_set(CONFIG_SYS_FTPMU010_SDRAMHTC);
119 #endif /* __NDS32_N1213_43U1H__ */
126 * Breathe some life into the board...
128 * Initialize a serial port as console, and carry out some hardware
131 * The first part of initialization is running from Flash memory;
132 * its main purpose is to initialize the RAM so that we
133 * can relocate the monitor code to RAM.
137 * All attempts to come up with a "common" initialization sequence
138 * that works for all boards and architectures failed: some of the
139 * requirements are just _too_ different. To get rid of the resulting
140 * mess of board dependent #ifdef'ed code we now make the whole
141 * initialization sequence configurable to the user.
143 * The requirements for any new initalization function is simple: it
144 * receives a pointer to the "global data" structure as it's only
145 * argument, and returns an integer return code, where 0 means
146 * "continue" and != 0 means "fatal error, hang the system".
148 typedef int (init_fnc_t)(void);
150 void __dram_init_banksize(void)
152 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
153 gd->bd->bi_dram[0].size = gd->ram_size;
155 void dram_init_banksize(void)
156 __attribute__((weak, alias("__dram_init_banksize")));
158 init_fnc_t *init_sequence[] = {
159 #if defined(CONFIG_ARCH_CPU_INIT)
160 arch_cpu_init, /* basic arch cpu dependent setup */
162 #if defined(CONFIG_PMU) || defined(CONFIG_PCU)
163 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
167 board_init, /* basic board dependent setup */
168 #if defined(CONFIG_USE_IRQ)
169 interrupt_init, /* set up exceptions */
171 timer_init, /* initialize timer */
172 env_init, /* initialize environment */
173 init_baudrate, /* initialze baudrate settings */
174 serial_init, /* serial communications setup */
175 console_init_f, /* stage 1 init of console */
176 #if defined(CONFIG_DISPLAY_BOARDINFO)
177 checkboard, /* display board info */
179 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
182 dram_init, /* configure available RAM banks */
187 void board_init_f(ulong bootflag)
190 init_fnc_t **init_fnc_ptr;
194 /* Pointer is writable since we allocated a register for it */
195 gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
197 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
199 gd->mon_len = (unsigned int)(&__bss_end__) - (unsigned int)(&_start);
201 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
202 if ((*init_fnc_ptr)() != 0)
206 debug("monitor len: %08lX\n", gd->mon_len);
208 * Ram is setup, size stored in gd !!
210 debug("ramsize: %08lX\n", gd->ram_size);
212 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
214 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
215 /* reserve TLB table */
218 /* round down to next 64 kB limit */
219 addr &= ~(0x10000 - 1);
222 debug("TLB table at: %08lx\n", addr);
225 /* round down to next 4 kB limit */
227 debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
230 #ifdef CONFIG_FB_ADDR
231 gd->fb_base = CONFIG_FB_ADDR;
233 /* reserve memory for LCD display (always full pages) */
234 addr = lcd_setmem(addr);
236 #endif /* CONFIG_FB_ADDR */
237 #endif /* CONFIG_LCD */
240 * reserve memory for U-Boot code, data & bss
241 * round down to next 4 kB limit
246 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
249 * reserve memory for malloc() arena
251 addr_sp = addr - TOTAL_MALLOC_LEN;
252 debug("Reserving %dk for malloc() at: %08lx\n",
253 TOTAL_MALLOC_LEN >> 10, addr_sp);
255 * (permanently) allocate a Board Info struct
256 * and a permanent copy of the "global" data
258 addr_sp -= GENERATED_BD_INFO_SIZE;
259 bd = (bd_t *) addr_sp;
261 memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
262 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
263 GENERATED_BD_INFO_SIZE, addr_sp);
265 addr_sp -= GENERATED_GBL_DATA_SIZE;
266 id = (gd_t *) addr_sp;
267 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
268 GENERATED_GBL_DATA_SIZE, addr_sp);
270 /* setup stackpointer for exeptions */
271 gd->irq_sp = addr_sp;
272 #ifdef CONFIG_USE_IRQ
273 addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
274 debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
275 CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
277 /* leave 3 words for abort-stack */
280 /* 8-byte alignment for ABI compliance */
282 debug("New Stack Pointer is: %08lx\n", addr_sp);
284 gd->bd->bi_baudrate = gd->baudrate;
285 /* Ram isn't board specific, so move it to board code ... */
286 dram_init_banksize();
287 display_dram_config(); /* and display it */
289 gd->relocaddr = addr;
290 gd->start_addr_sp = addr_sp;
292 gd->reloc_off = addr - _TEXT_BASE;
294 debug("relocation Offset is: %08lx\n", gd->reloc_off);
295 memcpy(id, (void *)gd, GENERATED_GBL_DATA_SIZE);
297 relocate_code(addr_sp, id, addr);
299 /* NOTREACHED - relocate_code() does not return */
303 * This is the next part if the initialization sequence: we are now
304 * running from RAM and have a "normal" C environment, i. e. global
305 * data can be written, BSS has been cleared, the stack size in not
306 * that critical any more, etc.
308 void board_init_r(gd_t *id, ulong dest_addr)
314 extern void malloc_bin_reloc(void);
319 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
321 monitor_flash_len = &_end - &_start;
322 debug("monitor flash len: %08lX\n", monitor_flash_len);
324 board_init(); /* Setup chipselects */
326 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
328 * We have to relocate the command table manually
330 fixup_cmdtable(&__u_boot_cmd_start,
331 (ulong)(&__u_boot_cmd_end - &__u_boot_cmd_start));
332 #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
334 #ifdef CONFIG_SERIAL_MULTI
338 debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
340 /* The Malloc area is immediately below the monitor copy in DRAM */
341 malloc_start = dest_addr - TOTAL_MALLOC_LEN;
342 mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
345 #ifndef CONFIG_SYS_NO_FLASH
346 /* configure available FLASH banks */
347 gd->bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
348 gd->bd->bi_flashsize = flash_init();
349 gd->bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + gd->bd->bi_flashsize;
351 if (gd->bd->bi_flashsize)
352 display_flash_config(gd->bd->bi_flashsize);
353 #endif /* CONFIG_SYS_NO_FLASH */
355 #if defined(CONFIG_CMD_NAND)
357 nand_init(); /* go init the NAND */
360 #ifdef CONFIG_GENERIC_MMC
362 mmc_initialize(gd->bd);
365 /* initialize environment */
368 #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
373 gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");
375 stdio_init(); /* get the devices list going. */
379 #if defined(CONFIG_API)
384 console_init_r(); /* fully init console as a device */
386 #if defined(CONFIG_ARCH_MISC_INIT)
387 /* miscellaneous arch dependent initialisations */
390 #if defined(CONFIG_MISC_INIT_R)
391 /* miscellaneous platform dependent initialisations */
395 #if defined(CONFIG_USE_IRQ)
396 /* set up exceptions */
398 /* enable exceptions */
402 /* Initialize from environment */
403 s = getenv("loadaddr");
405 load_addr = simple_strtoul(s, NULL, 16);
407 #if defined(CONFIG_CMD_NET)
408 s = getenv("bootfile");
410 copy_filename(BootFile, s, sizeof(BootFile));
413 #ifdef BOARD_LATE_INIT
417 #if defined(CONFIG_CMD_NET)
420 eth_initialize(gd->bd);
421 #if defined(CONFIG_RESET_PHY_R)
422 debug("Reset Ethernet PHY\n");
427 /* main_loop() can return to retry autoboot, if so just run it again. */
431 /* NOTREACHED - no way out of command loop except booting */
436 puts("### ERROR ### Please RESET the board ###\n");