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 #ifdef CONFIG_SYS_DMA_ALLOC_LEN
49 #include <asm/arch/cacheflush.h>
52 static unsigned long dma_alloc_start;
53 static unsigned long dma_alloc_end;
54 static unsigned long dma_alloc_brk;
56 static void dma_alloc_init(void)
58 unsigned long monitor_addr;
60 monitor_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
61 dma_alloc_end = monitor_addr - CONFIG_SYS_MALLOC_LEN;
62 dma_alloc_start = dma_alloc_end - CONFIG_SYS_DMA_ALLOC_LEN;
63 dma_alloc_brk = dma_alloc_start;
65 printf("DMA: Using memory from 0x%08lx to 0x%08lx\n",
66 dma_alloc_start, dma_alloc_end);
68 dcache_invalidate_range(cached(dma_alloc_start),
69 dma_alloc_end - dma_alloc_start);
72 void *dma_alloc_coherent(size_t len, unsigned long *handle)
74 unsigned long paddr = dma_alloc_brk;
76 if (dma_alloc_brk + len > dma_alloc_end)
79 dma_alloc_brk = ((paddr + len + CONFIG_SYS_DCACHE_LINESZ - 1)
80 & ~(CONFIG_SYS_DCACHE_LINESZ - 1));
83 return uncached(paddr);
86 static inline void dma_alloc_init(void)
92 static int init_baudrate(void)
94 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
98 static int display_banner (void)
100 printf ("\n\n%s\n\n", version_string);
101 printf ("U-Boot code: %08lx -> %08lx data: %08lx -> %08lx\n",
102 (unsigned long)_text, (unsigned long)_etext,
103 (unsigned long)_data, (unsigned long)(&__bss_end));
107 static int display_dram_config (void)
111 puts ("DRAM Configuration:\n");
113 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
114 printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
115 print_size (gd->bd->bi_dram[i].size, "\n");
121 static void display_flash_config (void)
124 print_size(gd->bd->bi_flashsize, " ");
125 printf("at address 0x%08lx\n", gd->bd->bi_flashstart);
128 void board_init_f(ulong board_type)
133 unsigned long *new_sp;
134 unsigned long monitor_len;
135 unsigned long monitor_addr;
139 /* Initialize the global data pointer */
140 memset(&gd_data, 0, sizeof(gd_data));
143 /* Perform initialization sequence */
144 board_early_init_f();
146 board_postclk_init();
152 sdram_size = initdram(board_type);
154 /* If we have no SDRAM, we can't go on */
156 panic("No working SDRAM available\n");
159 * Now that we have DRAM mapped and working, we can
160 * relocate the code and continue running from DRAM.
162 * Reserve memory at end of RAM for (top down in that order):
164 * - heap for malloc()
165 * - board info struct
166 * - global data struct
169 addr = CONFIG_SYS_SDRAM_BASE + sdram_size;
170 monitor_len = (char *)(&__bss_end) - _text;
173 * Reserve memory for u-boot code, data and bss.
174 * Round down to next 4 kB limit.
177 addr &= ~(4096UL - 1);
180 /* Reserve memory for malloc() */
181 addr -= CONFIG_SYS_MALLOC_LEN;
183 #ifdef CONFIG_SYS_DMA_ALLOC_LEN
184 /* Reserve DMA memory (must be cache aligned) */
185 addr &= ~(CONFIG_SYS_DCACHE_LINESZ - 1);
186 addr -= CONFIG_SYS_DMA_ALLOC_LEN;
190 #ifdef CONFIG_FB_ADDR
191 printf("LCD: Frame buffer allocated at preset 0x%08x\n",
193 gd->fb_base = CONFIG_FB_ADDR;
195 addr = lcd_setmem(addr);
196 printf("LCD: Frame buffer allocated at 0x%08lx\n", addr);
198 #endif /* CONFIG_FB_ADDR */
199 #endif /* CONFIG_LCD */
201 /* Allocate a Board Info struct on a word boundary */
202 addr -= sizeof(bd_t);
204 gd->bd = bd = (bd_t *)addr;
206 /* Allocate a new global data copy on a 8-byte boundary. */
207 addr -= sizeof(gd_t);
209 new_gd = (gd_t *)addr;
211 /* And finally, a new, bigger stack. */
212 new_sp = (unsigned long *)addr;
213 gd->arch.stack_end = addr;
218 * Initialize the board information struct with the
219 * information we have.
221 bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
222 bd->bi_dram[0].size = sdram_size;
223 bd->bi_baudrate = gd->baudrate;
225 memcpy(new_gd, gd, sizeof(gd_t));
227 relocate_code((unsigned long)new_sp, new_gd, monitor_addr);
230 void board_init_r(gd_t *new_gd, ulong dest_addr)
232 #ifndef CONFIG_ENV_IS_NOWHERE
233 extern char * env_name_spec;
240 gd->flags |= GD_FLG_RELOC;
241 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
243 /* Enable the MMU so that we can keep u-boot simple */
244 mmu_init_r(dest_addr);
246 board_early_init_r();
248 monitor_flash_len = _edata - _text;
250 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
252 * We have to relocate the command table manually
254 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
255 ll_entry_count(cmd_tbl_t, cmd));
256 #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
258 /* there are some other pointer constants we must deal with */
259 #ifndef CONFIG_ENV_IS_NOWHERE
260 env_name_spec += gd->reloc_off;
265 /* The malloc area is right below the monitor image in RAM */
266 mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
267 CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN);
272 bd->bi_flashstart = 0;
273 bd->bi_flashsize = 0;
274 bd->bi_flashoffset = 0;
276 #ifndef CONFIG_SYS_NO_FLASH
277 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
278 bd->bi_flashsize = flash_init();
279 bd->bi_flashoffset = (unsigned long)_edata - (unsigned long)_text;
281 if (bd->bi_flashsize)
282 display_flash_config();
285 if (bd->bi_dram[0].size)
286 display_dram_config();
288 gd->bd->bi_boot_params = malloc(CONFIG_SYS_BOOTPARAMS_LEN);
289 if (!gd->bd->bi_boot_params)
290 puts("WARNING: Cannot allocate space for boot parameters\n");
292 /* initialize environment */
299 /* Initialize from environment */
300 load_addr = getenv_ulong("loadaddr", 16, load_addr);
302 #ifdef CONFIG_BITBANGMII
305 #if defined(CONFIG_CMD_NET)
307 eth_initialize(gd->bd);
310 #ifdef CONFIG_GENERIC_ATMEL_MCI
311 mmc_initialize(gd->bd);