3 * Graeme Russ, <graeme.russ@gmail.com>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <stdio_dev.h>
32 #include <status_led.h>
33 #include <asm/processor.h>
34 #include <asm/u-boot-x86.h>
35 #include <linux/compiler.h>
37 #include <asm/init_helpers.h>
39 DECLARE_GLOBAL_DATA_PTR;
41 /************************************************************************
43 ************************************************************************
44 * Some of this code should be moved into the core functions,
45 * or dropped completely,
46 * but let's get it working (again) first...
49 int display_banner(void)
51 printf("\n\n%s\n\n", version_string);
56 int display_dram_config(void)
60 puts("DRAM Configuration:\n");
62 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
63 printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
64 print_size(gd->bd->bi_dram[i].size, "\n");
70 int init_baudrate_f(void)
72 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
76 /* Get the top of usable RAM */
77 __weak ulong board_get_usable_ram_top(ulong total_size)
82 int calculate_relocation_address(void)
84 const ulong uboot_size = (uintptr_t)&__bss_end -
85 (uintptr_t)&__text_start;
89 total_size = ALIGN(uboot_size, 1 << 12) + CONFIG_SYS_MALLOC_LEN +
90 CONFIG_SYS_STACK_SIZE;
93 * NOTE: All destination address are rounded down to 16-byte
94 * boundary to satisfy various worst-case alignment
97 dest_addr = board_get_usable_ram_top(total_size);
99 /* U-Boot is below the FDT */
100 dest_addr -= uboot_size;
101 dest_addr &= ~((1 << 12) - 1);
102 gd->relocaddr = dest_addr;
103 gd->reloc_off = dest_addr - (uintptr_t)&__text_start;
105 /* Stack is at the bottom, so it can grow down */
106 gd->start_addr_sp = dest_addr - CONFIG_SYS_MALLOC_LEN;
111 int init_cache_f_r(void)
113 /* Initialise the CPU cache(s) */
117 int set_reloc_flag_r(void)
119 gd->flags = GD_FLG_RELOC;
124 int mem_malloc_init_r(void)
126 mem_malloc_init(((gd->relocaddr - CONFIG_SYS_MALLOC_LEN)+3)&~3,
127 CONFIG_SYS_MALLOC_LEN);
134 int init_bd_struct_r(void)
137 memset(gd->bd, 0, sizeof(bd_t));
142 #ifndef CONFIG_SYS_NO_FLASH
143 int flash_init_r(void)
149 /* configure available FLASH banks */
152 print_size(size, "\n");
158 #ifdef CONFIG_STATUS_LED
159 int status_led_set_r(void)
161 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
167 int set_load_addr_r(void)
169 /* Initialize from environment */
170 load_addr = getenv_ulong("loadaddr", 16, load_addr);
175 int init_func_spi(void)
183 #ifdef CONFIG_OF_CONTROL
186 #ifdef CONFIG_OF_EMBED
187 /* Get a pointer to the FDT */
188 gd->fdt_blob = _binary_dt_dtb_start;
189 #elif defined CONFIG_OF_SEPARATE
190 /* FDT is at end of image */
191 gd->fdt_blob = (ulong *)&_end;
193 /* Allow the early environment to override the fdt address */
194 gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
195 (uintptr_t)gd->fdt_blob);
200 int prepare_fdt(void)
202 /* For now, put this check after the console is ready */
203 if (fdtdec_prepare_fdt()) {
204 panic("** CONFIG_OF_CONTROL defined but no FDT - please see "
205 "doc/README.fdt-control");