2 * Copyright (C) 2004-2006 Atmel Corporation
4 * SPDX-License-Identifier: GPL-2.0+
13 #ifdef CONFIG_BITBANGMII
17 #include <asm/sections.h>
18 #include <asm/arch/mmu.h>
19 #include <asm/arch/hardware.h>
21 #ifndef CONFIG_IDENT_STRING
22 #define CONFIG_IDENT_STRING ""
25 #ifdef CONFIG_GENERIC_ATMEL_MCI
28 DECLARE_GLOBAL_DATA_PTR;
30 unsigned long monitor_flash_len;
32 __weak void dram_init_banksize(void)
34 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
35 gd->bd->bi_dram[0].size = gd->ram_size;
38 /* Weak aliases for optional board functions */
39 static int __do_nothing(void)
43 int board_postclk_init(void) __attribute__((weak, alias("__do_nothing")));
44 int board_early_init_r(void) __attribute__((weak, alias("__do_nothing")));
46 static int init_baudrate(void)
48 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
52 static int display_banner (void)
54 printf ("\n\n%s\n\n", version_string);
55 printf ("U-Boot code: %08lx -> %08lx data: %08lx -> %08lx\n",
56 (unsigned long)_text, (unsigned long)_etext,
57 (unsigned long)_data, (unsigned long)(&__bss_end));
61 static int display_dram_config (void)
65 puts ("DRAM Configuration:\n");
67 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
68 printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
69 print_size (gd->bd->bi_dram[i].size, "\n");
75 static void display_flash_config (void)
78 print_size(gd->bd->bi_flashsize, " ");
79 printf("at address 0x%08lx\n", gd->bd->bi_flashstart);
82 void board_init_f(ulong board_type)
87 unsigned long *new_sp;
88 unsigned long monitor_len;
89 unsigned long monitor_addr;
92 /* Initialize the global data pointer */
93 memset(&gd_data, 0, sizeof(gd_data));
96 /* Perform initialization sequence */
107 /* If we have no SDRAM, we can't go on */
108 if (gd->ram_size <= 0)
109 panic("No working SDRAM available\n");
112 * Now that we have DRAM mapped and working, we can
113 * relocate the code and continue running from DRAM.
115 * Reserve memory at end of RAM for (top down in that order):
117 * - heap for malloc()
118 * - board info struct
119 * - global data struct
122 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
123 monitor_len = (char *)(&__bss_end) - _text;
126 * Reserve memory for u-boot code, data and bss.
127 * Round down to next 4 kB limit.
130 addr &= ~(4096UL - 1);
133 /* Reserve memory for malloc() */
134 addr -= CONFIG_SYS_MALLOC_LEN;
137 #ifdef CONFIG_FB_ADDR
138 printf("LCD: Frame buffer allocated at preset 0x%08x\n",
140 gd->fb_base = CONFIG_FB_ADDR;
142 addr = lcd_setmem(addr);
143 printf("LCD: Frame buffer allocated at 0x%08lx\n", addr);
145 #endif /* CONFIG_FB_ADDR */
146 #endif /* CONFIG_LCD */
148 /* Allocate a Board Info struct on a word boundary */
149 addr -= sizeof(bd_t);
151 gd->bd = bd = (bd_t *)addr;
153 /* Allocate a new global data copy on a 8-byte boundary. */
154 addr -= sizeof(gd_t);
156 new_gd = (gd_t *)addr;
158 /* And finally, a new, bigger stack. */
159 new_sp = (unsigned long *)addr;
160 gd->arch.stack_end = addr;
164 dram_init_banksize();
166 memcpy(new_gd, gd, sizeof(gd_t));
168 relocate_code((unsigned long)new_sp, new_gd, monitor_addr);
171 void board_init_r(gd_t *new_gd, ulong dest_addr)
173 #ifndef CONFIG_ENV_IS_NOWHERE
174 extern char * env_name_spec;
181 gd->flags |= GD_FLG_RELOC;
182 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
184 /* Enable the MMU so that we can keep u-boot simple */
185 mmu_init_r(dest_addr);
187 board_early_init_r();
189 monitor_flash_len = _edata - _text;
191 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
193 * We have to relocate the command table manually
195 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
196 ll_entry_count(cmd_tbl_t, cmd));
197 #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
199 /* there are some other pointer constants we must deal with */
200 #ifndef CONFIG_ENV_IS_NOWHERE
201 env_name_spec += gd->reloc_off;
206 /* The malloc area is right below the monitor image in RAM */
207 mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
208 CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN);
212 bd->bi_flashstart = 0;
213 bd->bi_flashsize = 0;
214 bd->bi_flashoffset = 0;
216 #ifndef CONFIG_SYS_NO_FLASH
217 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
218 bd->bi_flashsize = flash_init();
219 bd->bi_flashoffset = (unsigned long)_edata - (unsigned long)_text;
221 if (bd->bi_flashsize)
222 display_flash_config();
225 if (bd->bi_dram[0].size)
226 display_dram_config();
228 gd->bd->bi_boot_params = malloc(CONFIG_SYS_BOOTPARAMS_LEN);
229 if (!gd->bd->bi_boot_params)
230 puts("WARNING: Cannot allocate space for boot parameters\n");
232 /* initialize environment */
239 /* Initialize from environment */
240 load_addr = getenv_ulong("loadaddr", 16, load_addr);
242 #ifdef CONFIG_BITBANGMII
245 #if defined(CONFIG_CMD_NET)
247 eth_initialize(gd->bd);
250 #ifdef CONFIG_GENERIC_ATMEL_MCI
251 mmc_initialize(gd->bd);