2 * Copyright (C) 2004-2006 Atmel Corporation
4 * SPDX-License-Identifier: GPL-2.0+
12 #include <atmel_mci.h>
14 #ifdef CONFIG_BITBANGMII
18 #include <asm/sections.h>
19 #include <asm/arch/mmu.h>
20 #include <asm/arch/hardware.h>
22 #ifndef CONFIG_IDENT_STRING
23 #define CONFIG_IDENT_STRING ""
26 #ifdef CONFIG_GENERIC_ATMEL_MCI
29 DECLARE_GLOBAL_DATA_PTR;
31 unsigned long monitor_flash_len;
33 /* Weak aliases for optional board functions */
34 static int __do_nothing(void)
38 int board_postclk_init(void) __attribute__((weak, alias("__do_nothing")));
39 int board_early_init_r(void) __attribute__((weak, alias("__do_nothing")));
41 /* provide cpu_mmc_init, to overwrite provide board_mmc_init */
42 int cpu_mmc_init(bd_t *bd)
44 /* This calls the atmel_mci_init in gen_atmel_mci.c */
45 return atmel_mci_init((void *)ATMEL_BASE_MMCI);
48 static int init_baudrate(void)
50 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
54 static int display_banner (void)
56 printf ("\n\n%s\n\n", version_string);
57 printf ("U-Boot code: %08lx -> %08lx data: %08lx -> %08lx\n",
58 (unsigned long)_text, (unsigned long)_etext,
59 (unsigned long)_data, (unsigned long)(&__bss_end));
63 static int display_dram_config (void)
67 puts ("DRAM Configuration:\n");
69 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
70 printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
71 print_size (gd->bd->bi_dram[i].size, "\n");
77 static void display_flash_config (void)
80 print_size(gd->bd->bi_flashsize, " ");
81 printf("at address 0x%08lx\n", gd->bd->bi_flashstart);
84 void board_init_f(ulong board_type)
89 unsigned long *new_sp;
90 unsigned long monitor_len;
91 unsigned long monitor_addr;
95 /* Initialize the global data pointer */
96 memset(&gd_data, 0, sizeof(gd_data));
99 /* Perform initialization sequence */
100 board_early_init_f();
102 board_postclk_init();
108 sdram_size = initdram(board_type);
110 /* If we have no SDRAM, we can't go on */
112 panic("No working SDRAM available\n");
115 * Now that we have DRAM mapped and working, we can
116 * relocate the code and continue running from DRAM.
118 * Reserve memory at end of RAM for (top down in that order):
120 * - heap for malloc()
121 * - board info struct
122 * - global data struct
125 addr = CONFIG_SYS_SDRAM_BASE + sdram_size;
126 monitor_len = (char *)(&__bss_end) - _text;
129 * Reserve memory for u-boot code, data and bss.
130 * Round down to next 4 kB limit.
133 addr &= ~(4096UL - 1);
136 /* Reserve memory for malloc() */
137 addr -= CONFIG_SYS_MALLOC_LEN;
140 #ifdef CONFIG_FB_ADDR
141 printf("LCD: Frame buffer allocated at preset 0x%08x\n",
143 gd->fb_base = CONFIG_FB_ADDR;
145 addr = lcd_setmem(addr);
146 printf("LCD: Frame buffer allocated at 0x%08lx\n", addr);
148 #endif /* CONFIG_FB_ADDR */
149 #endif /* CONFIG_LCD */
151 /* Allocate a Board Info struct on a word boundary */
152 addr -= sizeof(bd_t);
154 gd->bd = bd = (bd_t *)addr;
156 /* Allocate a new global data copy on a 8-byte boundary. */
157 addr -= sizeof(gd_t);
159 new_gd = (gd_t *)addr;
161 /* And finally, a new, bigger stack. */
162 new_sp = (unsigned long *)addr;
163 gd->arch.stack_end = addr;
168 * Initialize the board information struct with the
169 * information we have.
171 bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
172 bd->bi_dram[0].size = sdram_size;
174 memcpy(new_gd, gd, sizeof(gd_t));
176 relocate_code((unsigned long)new_sp, new_gd, monitor_addr);
179 void board_init_r(gd_t *new_gd, ulong dest_addr)
181 #ifndef CONFIG_ENV_IS_NOWHERE
182 extern char * env_name_spec;
189 gd->flags |= GD_FLG_RELOC;
190 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
192 /* Enable the MMU so that we can keep u-boot simple */
193 mmu_init_r(dest_addr);
195 board_early_init_r();
197 monitor_flash_len = _edata - _text;
199 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
201 * We have to relocate the command table manually
203 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
204 ll_entry_count(cmd_tbl_t, cmd));
205 #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
207 /* there are some other pointer constants we must deal with */
208 #ifndef CONFIG_ENV_IS_NOWHERE
209 env_name_spec += gd->reloc_off;
214 /* The malloc area is right below the monitor image in RAM */
215 mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
216 CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN);
220 bd->bi_flashstart = 0;
221 bd->bi_flashsize = 0;
222 bd->bi_flashoffset = 0;
224 #ifndef CONFIG_SYS_NO_FLASH
225 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
226 bd->bi_flashsize = flash_init();
227 bd->bi_flashoffset = (unsigned long)_edata - (unsigned long)_text;
229 if (bd->bi_flashsize)
230 display_flash_config();
233 if (bd->bi_dram[0].size)
234 display_dram_config();
236 gd->bd->bi_boot_params = malloc(CONFIG_SYS_BOOTPARAMS_LEN);
237 if (!gd->bd->bi_boot_params)
238 puts("WARNING: Cannot allocate space for boot parameters\n");
240 /* initialize environment */
247 /* Initialize from environment */
248 load_addr = getenv_ulong("loadaddr", 16, load_addr);
250 #ifdef CONFIG_BITBANGMII
253 #if defined(CONFIG_CMD_NET)
255 eth_initialize(gd->bd);
258 #ifdef CONFIG_GENERIC_ATMEL_MCI
259 mmc_initialize(gd->bd);