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 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
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.
64 static int display_dram_config(void)
69 puts("RAM Configuration:\n");
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");
78 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
79 size += gd->bd->bi_dram[i].size;
82 print_size(size, "\n");
88 #ifndef CONFIG_SYS_NO_FLASH
89 static void display_flash_config(ulong size)
92 print_size(size, "\n");
94 #endif /* CONFIG_SYS_NO_FLASH */
96 #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
98 static int nds32_pci_init(void)
103 #endif /* CONFIG_CMD_PCI || CONFIG_PCI */
105 #if defined(CONFIG_PMU) || defined(CONFIG_PCU)
106 static int pmu_init(void)
108 #if defined(CONFIG_FTPMU010_POWER)
109 #ifdef __NDS32_N1213_43U1H__ /* AG101: internal definition in toolchain */
110 ftpmu010_sdram_clk_disable(CONFIG_SYS_FTPMU010_PDLLCR0_HCLKOUTDIS);
111 ftpmu010_mfpsr_select_dev(FTPMU010_MFPSR_AC97CLKSEL);
112 ftpmu010_sdramhtc_set(CONFIG_SYS_FTPMU010_SDRAMHTC);
113 #endif /* __NDS32_N1213_43U1H__ */
120 * Breathe some life into the board...
122 * Initialize a serial port as console, and carry out some hardware
125 * The first part of initialization is running from Flash memory;
126 * its main purpose is to initialize the RAM so that we
127 * can relocate the monitor code to RAM.
131 * All attempts to come up with a "common" initialization sequence
132 * that works for all boards and architectures failed: some of the
133 * requirements are just _too_ different. To get rid of the resulting
134 * mess of board dependent #ifdef'ed code we now make the whole
135 * initialization sequence configurable to the user.
137 * The requirements for any new initalization function is simple: it
138 * receives a pointer to the "global data" structure as it's only
139 * argument, and returns an integer return code, where 0 means
140 * "continue" and != 0 means "fatal error, hang the system".
142 typedef int (init_fnc_t)(void);
144 void __dram_init_banksize(void)
146 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
147 gd->bd->bi_dram[0].size = gd->ram_size;
149 void dram_init_banksize(void)
150 __attribute__((weak, alias("__dram_init_banksize")));
152 init_fnc_t *init_sequence[] = {
153 #if defined(CONFIG_ARCH_CPU_INIT)
154 arch_cpu_init, /* basic arch cpu dependent setup */
156 #if defined(CONFIG_PMU) || defined(CONFIG_PCU)
157 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
161 board_init, /* basic board dependent setup */
162 #if defined(CONFIG_USE_IRQ)
163 interrupt_init, /* set up exceptions */
165 timer_init, /* initialize timer */
166 env_init, /* initialize environment */
167 init_baudrate, /* initialze baudrate settings */
168 serial_init, /* serial communications setup */
169 console_init_f, /* stage 1 init of console */
170 #if defined(CONFIG_DISPLAY_BOARDINFO)
171 checkboard, /* display board info */
173 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
176 dram_init, /* configure available RAM banks */
181 void board_init_f(ulong bootflag)
184 init_fnc_t **init_fnc_ptr;
188 /* Pointer is writable since we allocated a register for it */
189 gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
191 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
193 gd->mon_len = (unsigned int)(&__bss_end__) - (unsigned int)(&_start);
195 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
196 if ((*init_fnc_ptr)() != 0)
200 debug("monitor len: %08lX\n", gd->mon_len);
202 * Ram is setup, size stored in gd !!
204 debug("ramsize: %08lX\n", gd->ram_size);
206 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
208 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
209 /* reserve TLB table */
212 /* round down to next 64 kB limit */
213 addr &= ~(0x10000 - 1);
216 debug("TLB table at: %08lx\n", addr);
219 /* round down to next 4 kB limit */
221 debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
224 #ifdef CONFIG_FB_ADDR
225 gd->fb_base = CONFIG_FB_ADDR;
227 /* reserve memory for LCD display (always full pages) */
228 addr = lcd_setmem(addr);
230 #endif /* CONFIG_FB_ADDR */
231 #endif /* CONFIG_LCD */
234 * reserve memory for U-Boot code, data & bss
235 * round down to next 4 kB limit
240 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
243 * reserve memory for malloc() arena
245 addr_sp = addr - TOTAL_MALLOC_LEN;
246 debug("Reserving %dk for malloc() at: %08lx\n",
247 TOTAL_MALLOC_LEN >> 10, addr_sp);
249 * (permanently) allocate a Board Info struct
250 * and a permanent copy of the "global" data
252 addr_sp -= GENERATED_BD_INFO_SIZE;
253 bd = (bd_t *) addr_sp;
255 memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
256 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
257 GENERATED_BD_INFO_SIZE, addr_sp);
259 addr_sp -= GENERATED_GBL_DATA_SIZE;
260 id = (gd_t *) addr_sp;
261 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
262 GENERATED_GBL_DATA_SIZE, addr_sp);
264 /* setup stackpointer for exeptions */
265 gd->irq_sp = addr_sp;
266 #ifdef CONFIG_USE_IRQ
267 addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
268 debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
269 CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
271 /* leave 3 words for abort-stack */
274 /* 8-byte alignment for ABI compliance */
276 debug("New Stack Pointer is: %08lx\n", addr_sp);
278 gd->bd->bi_baudrate = gd->baudrate;
279 /* Ram isn't board specific, so move it to board code ... */
280 dram_init_banksize();
281 display_dram_config(); /* and display it */
283 gd->relocaddr = addr;
284 gd->start_addr_sp = addr_sp;
286 gd->reloc_off = addr - _TEXT_BASE;
288 debug("relocation Offset is: %08lx\n", gd->reloc_off);
289 memcpy(id, (void *)gd, GENERATED_GBL_DATA_SIZE);
291 relocate_code(addr_sp, id, addr);
293 /* NOTREACHED - relocate_code() does not return */
297 * This is the next part if the initialization sequence: we are now
298 * running from RAM and have a "normal" C environment, i. e. global
299 * data can be written, BSS has been cleared, the stack size in not
300 * that critical any more, etc.
302 void board_init_r(gd_t *id, ulong dest_addr)
308 extern void malloc_bin_reloc(void);
313 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
315 monitor_flash_len = &_end - &_start;
316 debug("monitor flash len: %08lX\n", monitor_flash_len);
318 board_init(); /* Setup chipselects */
320 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
322 * We have to relocate the command table manually
324 fixup_cmdtable(&__u_boot_cmd_start,
325 (ulong)(&__u_boot_cmd_end - &__u_boot_cmd_start));
326 #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
328 #ifdef CONFIG_SERIAL_MULTI
332 debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
334 /* The Malloc area is immediately below the monitor copy in DRAM */
335 malloc_start = dest_addr - TOTAL_MALLOC_LEN;
336 mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
339 #ifndef CONFIG_SYS_NO_FLASH
340 /* configure available FLASH banks */
341 gd->bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
342 gd->bd->bi_flashsize = flash_init();
343 gd->bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + gd->bd->bi_flashsize;
345 if (gd->bd->bi_flashsize)
346 display_flash_config(gd->bd->bi_flashsize);
347 #endif /* CONFIG_SYS_NO_FLASH */
349 #if defined(CONFIG_CMD_NAND)
351 nand_init(); /* go init the NAND */
354 #ifdef CONFIG_GENERIC_MMC
356 mmc_initialize(gd->bd);
359 /* initialize environment */
362 #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
367 gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");
369 stdio_init(); /* get the devices list going. */
373 #if defined(CONFIG_API)
378 console_init_r(); /* fully init console as a device */
380 #if defined(CONFIG_ARCH_MISC_INIT)
381 /* miscellaneous arch dependent initialisations */
384 #if defined(CONFIG_MISC_INIT_R)
385 /* miscellaneous platform dependent initialisations */
389 #if defined(CONFIG_USE_IRQ)
390 /* set up exceptions */
392 /* enable exceptions */
396 /* Initialize from environment */
397 load_addr = getenv_ulong("loadaddr", 16, load_addr);
399 #if defined(CONFIG_CMD_NET)
400 s = getenv("bootfile");
402 copy_filename(BootFile, s, sizeof(BootFile));
405 #ifdef BOARD_LATE_INIT
409 #if defined(CONFIG_CMD_NET)
412 eth_initialize(gd->bd);
413 #if defined(CONFIG_RESET_PHY_R)
414 debug("Reset Ethernet PHY\n");
419 /* main_loop() can return to retry autoboot, if so just run it again. */
423 /* NOTREACHED - no way out of command loop except booting */
428 puts("### ERROR ### Please RESET the board ###\n");