1 /* 2 * (C) Copyright 2011 3 * Graeme Russ, <graeme.russ@gmail.com> 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 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. 12 * 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. 17 * 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, 21 * MA 02111-1307 USA 22 */ 23 #include <common.h> 24 #include <command.h> 25 #include <stdio_dev.h> 26 #include <version.h> 27 #include <malloc.h> 28 #include <net.h> 29 #include <ide.h> 30 #include <serial.h> 31 #include <spi.h> 32 #include <status_led.h> 33 #include <asm/processor.h> 34 #include <asm/u-boot-x86.h> 35 36 #include <asm/init_helpers.h> 37 38 DECLARE_GLOBAL_DATA_PTR; 39 40 /************************************************************************ 41 * Init Utilities * 42 ************************************************************************ 43 * Some of this code should be moved into the core functions, 44 * or dropped completely, 45 * but let's get it working (again) first... 46 */ 47 48 int display_banner(void) 49 { 50 printf("\n\n%s\n\n", version_string); 51 52 return 0; 53 } 54 55 int display_dram_config(void) 56 { 57 int i; 58 59 puts("DRAM Configuration:\n"); 60 61 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { 62 printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); 63 print_size(gd->bd->bi_dram[i].size, "\n"); 64 } 65 66 return 0; 67 } 68 69 int init_baudrate_f(void) 70 { 71 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); 72 return 0; 73 } 74 75 int calculate_relocation_address(void) 76 { 77 ulong text_start = (ulong)&__text_start; 78 ulong bss_end = (ulong)&__bss_end; 79 ulong dest_addr; 80 81 /* 82 * NOTE: All destination address are rounded down to 16-byte 83 * boundary to satisfy various worst-case alignment 84 * requirements 85 */ 86 87 /* Stack is at top of available memory */ 88 dest_addr = gd->ram_size; 89 90 /* U-Boot is at the top */ 91 dest_addr -= (bss_end - text_start); 92 dest_addr &= ~15; 93 gd->relocaddr = dest_addr; 94 gd->reloc_off = (dest_addr - text_start); 95 96 /* Stack is at the bottom, so it can grow down */ 97 gd->start_addr_sp = dest_addr - CONFIG_SYS_MALLOC_LEN; 98 99 return 0; 100 } 101 102 int init_cache_f_r(void) 103 { 104 /* Initialise the CPU cache(s) */ 105 return init_cache(); 106 } 107 108 int set_reloc_flag_r(void) 109 { 110 gd->flags = GD_FLG_RELOC; 111 112 return 0; 113 } 114 115 int mem_malloc_init_r(void) 116 { 117 mem_malloc_init(((gd->relocaddr - CONFIG_SYS_MALLOC_LEN)+3)&~3, 118 CONFIG_SYS_MALLOC_LEN); 119 120 return 0; 121 } 122 123 bd_t bd_data; 124 125 int init_bd_struct_r(void) 126 { 127 gd->bd = &bd_data; 128 memset(gd->bd, 0, sizeof(bd_t)); 129 130 return 0; 131 } 132 133 #ifndef CONFIG_SYS_NO_FLASH 134 int flash_init_r(void) 135 { 136 ulong size; 137 138 puts("Flash: "); 139 140 /* configure available FLASH banks */ 141 size = flash_init(); 142 143 print_size(size, "\n"); 144 145 return 0; 146 } 147 #endif 148 149 #ifdef CONFIG_STATUS_LED 150 int status_led_set_r(void) 151 { 152 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING); 153 154 return 0; 155 } 156 #endif 157 158 int set_load_addr_r(void) 159 { 160 /* Initialize from environment */ 161 load_addr = getenv_ulong("loadaddr", 16, load_addr); 162 163 return 0; 164 } 165 166 int init_func_spi(void) 167 { 168 puts("SPI: "); 169 spi_init(); 170 puts("ready\n"); 171 return 0; 172 } 173