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>
39 #include <asm/sections.h>
41 DECLARE_GLOBAL_DATA_PTR;
43 #if defined(CONFIG_SYS_I2C)
47 ulong monitor_flash_len;
53 #if !defined(CONFIG_BAUDRATE)
54 #define CONFIG_BAUDRATE 38400
56 static int init_baudrate(void)
58 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
63 * WARNING: this code looks "cleaner" than the PowerPC version, but
64 * has the disadvantage that you either get nothing, or everything.
65 * On PowerPC, you might see "DRAM: " before the system hangs - which
66 * gives a simple yet clear indication which part of the
67 * initialization if failing.
69 static int display_dram_config(void)
74 puts("RAM Configuration:\n");
76 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
77 printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
78 print_size(gd->bd->bi_dram[i].size, "\n");
83 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
84 size += gd->bd->bi_dram[i].size;
87 print_size(size, "\n");
93 #ifndef CONFIG_SYS_NO_FLASH
94 static void display_flash_config(ulong size)
97 print_size(size, "\n");
99 #endif /* CONFIG_SYS_NO_FLASH */
101 #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
103 static int nds32_pci_init(void)
108 #endif /* CONFIG_CMD_PCI || CONFIG_PCI */
110 #if defined(CONFIG_PMU) || defined(CONFIG_PCU)
111 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
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__ */
127 * Breathe some life into the board...
129 * Initialize a serial port as console, and carry out some hardware
132 * The first part of initialization is running from Flash memory;
133 * its main purpose is to initialize the RAM so that we
134 * can relocate the monitor code to RAM.
138 * All attempts to come up with a "common" initialization sequence
139 * that works for all boards and architectures failed: some of the
140 * requirements are just _too_ different. To get rid of the resulting
141 * mess of board dependent #ifdef'ed code we now make the whole
142 * initialization sequence configurable to the user.
144 * The requirements for any new initalization function is simple: it
145 * receives a pointer to the "global data" structure as it's only
146 * argument, and returns an integer return code, where 0 means
147 * "continue" and != 0 means "fatal error, hang the system".
149 typedef int (init_fnc_t)(void);
151 void __dram_init_banksize(void)
153 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
154 gd->bd->bi_dram[0].size = gd->ram_size;
156 void dram_init_banksize(void)
157 __attribute__((weak, alias("__dram_init_banksize")));
159 init_fnc_t *init_sequence[] = {
160 #if defined(CONFIG_ARCH_CPU_INIT)
161 arch_cpu_init, /* basic arch cpu dependent setup */
163 #if defined(CONFIG_PMU) || defined(CONFIG_PCU)
164 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
168 board_init, /* basic board dependent setup */
169 #if defined(CONFIG_USE_IRQ)
170 interrupt_init, /* set up exceptions */
172 timer_init, /* initialize timer */
173 env_init, /* initialize environment */
174 init_baudrate, /* initialze baudrate settings */
175 serial_init, /* serial communications setup */
176 console_init_f, /* stage 1 init of console */
177 #if defined(CONFIG_DISPLAY_BOARDINFO)
178 checkboard, /* display board info */
180 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
183 dram_init, /* configure available RAM banks */
188 void board_init_f(ulong bootflag)
191 init_fnc_t **init_fnc_ptr;
195 /* Pointer is writable since we allocated a register for it */
196 gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
198 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
200 gd->mon_len = (unsigned int)(&__bss_end) - (unsigned int)(&_start);
202 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
203 if ((*init_fnc_ptr)() != 0)
207 debug("monitor len: %08lX\n", gd->mon_len);
209 * Ram is setup, size stored in gd !!
211 debug("ramsize: %08lX\n", gd->ram_size);
213 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
215 /* round down to next 4 kB limit */
217 debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
220 #ifdef CONFIG_FB_ADDR
221 gd->fb_base = CONFIG_FB_ADDR;
223 /* reserve memory for LCD display (always full pages) */
224 addr = lcd_setmem(addr);
226 #endif /* CONFIG_FB_ADDR */
227 #endif /* CONFIG_LCD */
230 * reserve memory for U-Boot code, data & bss
231 * round down to next 4 kB limit
236 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
239 * reserve memory for malloc() arena
241 addr_sp = addr - TOTAL_MALLOC_LEN;
242 debug("Reserving %dk for malloc() at: %08lx\n",
243 TOTAL_MALLOC_LEN >> 10, addr_sp);
245 * (permanently) allocate a Board Info struct
246 * and a permanent copy of the "global" data
248 addr_sp -= GENERATED_BD_INFO_SIZE;
249 bd = (bd_t *) addr_sp;
251 memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
252 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
253 GENERATED_BD_INFO_SIZE, addr_sp);
255 addr_sp -= GENERATED_GBL_DATA_SIZE;
256 id = (gd_t *) addr_sp;
257 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
258 GENERATED_GBL_DATA_SIZE, addr_sp);
260 /* setup stackpointer for exeptions */
261 gd->irq_sp = addr_sp;
262 #ifdef CONFIG_USE_IRQ
263 addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
264 debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
265 CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
267 /* leave 3 words for abort-stack */
270 /* 8-byte alignment for ABI compliance */
272 debug("New Stack Pointer is: %08lx\n", addr_sp);
274 gd->bd->bi_baudrate = gd->baudrate;
275 /* Ram isn't board specific, so move it to board code ... */
276 dram_init_banksize();
277 display_dram_config(); /* and display it */
279 gd->relocaddr = addr;
280 gd->start_addr_sp = addr_sp;
282 gd->reloc_off = addr - _TEXT_BASE;
284 debug("relocation Offset is: %08lx\n", gd->reloc_off);
285 memcpy(id, (void *)gd, GENERATED_GBL_DATA_SIZE);
287 relocate_code(addr_sp, id, addr);
289 /* NOTREACHED - relocate_code() does not return */
293 * This is the next part if the initialization sequence: we are now
294 * running from RAM and have a "normal" C environment, i. e. global
295 * data can be written, BSS has been cleared, the stack size in not
296 * that critical any more, etc.
298 void board_init_r(gd_t *id, ulong dest_addr)
306 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
308 monitor_flash_len = (ulong)&_end - (ulong)&_start;
309 debug("monitor flash len: %08lX\n", monitor_flash_len);
311 board_init(); /* Setup chipselects */
313 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
315 * We have to relocate the command table manually
317 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
318 ll_entry_count(cmd_tbl_t, cmd));
319 #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
323 debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
325 /* The Malloc area is immediately below the monitor copy in DRAM */
326 malloc_start = dest_addr - TOTAL_MALLOC_LEN;
327 mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
329 #ifndef CONFIG_SYS_NO_FLASH
330 /* configure available FLASH banks */
331 gd->bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
332 gd->bd->bi_flashsize = flash_init();
333 gd->bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + gd->bd->bi_flashsize;
335 if (gd->bd->bi_flashsize)
336 display_flash_config(gd->bd->bi_flashsize);
337 #endif /* CONFIG_SYS_NO_FLASH */
339 #if defined(CONFIG_CMD_NAND)
341 nand_init(); /* go init the NAND */
344 #if defined(CONFIG_CMD_IDE)
349 #ifdef CONFIG_GENERIC_MMC
351 mmc_initialize(gd->bd);
354 #if defined(CONFIG_SYS_I2C_ADAPTERS)
358 /* initialize environment */
361 #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
366 stdio_init(); /* get the devices list going. */
370 #if defined(CONFIG_API)
375 console_init_r(); /* fully init console as a device */
377 #if defined(CONFIG_ARCH_MISC_INIT)
378 /* miscellaneous arch dependent initialisations */
381 #if defined(CONFIG_MISC_INIT_R)
382 /* miscellaneous platform dependent initialisations */
386 #if defined(CONFIG_USE_IRQ)
387 /* set up exceptions */
389 /* enable exceptions */
393 /* Initialize from environment */
394 load_addr = getenv_ulong("loadaddr", 16, load_addr);
396 #ifdef CONFIG_BOARD_LATE_INIT
400 #if defined(CONFIG_CMD_NET)
403 eth_initialize(gd->bd);
404 #if defined(CONFIG_RESET_PHY_R)
405 debug("Reset Ethernet PHY\n");
410 /* main_loop() can return to retry autoboot, if so just run it again. */
414 /* NOTREACHED - no way out of command loop except booting */