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 gd->start_addr_sp = dest_addr; 90 91 /* U-Boot is below the stack */ 92 dest_addr -= CONFIG_SYS_STACK_SIZE; 93 dest_addr -= (bss_end - text_start); 94 dest_addr &= ~15; 95 gd->relocaddr = dest_addr; 96 gd->reloc_off = (dest_addr - text_start); 97 98 return 0; 99 } 100 101 int init_cache_f_r(void) 102 { 103 /* Initialise the CPU cache(s) */ 104 return init_cache(); 105 } 106 107 int set_reloc_flag_r(void) 108 { 109 gd->flags = GD_FLG_RELOC; 110 111 return 0; 112 } 113 114 int mem_malloc_init_r(void) 115 { 116 mem_malloc_init(((gd->relocaddr - CONFIG_SYS_MALLOC_LEN)+3)&~3, 117 CONFIG_SYS_MALLOC_LEN); 118 119 return 0; 120 } 121 122 bd_t bd_data; 123 124 int init_bd_struct_r(void) 125 { 126 gd->bd = &bd_data; 127 memset(gd->bd, 0, sizeof(bd_t)); 128 129 return 0; 130 } 131 132 #ifndef CONFIG_SYS_NO_FLASH 133 int flash_init_r(void) 134 { 135 ulong size; 136 137 puts("Flash: "); 138 139 /* configure available FLASH banks */ 140 size = flash_init(); 141 142 print_size(size, "\n"); 143 144 return 0; 145 } 146 #endif 147 148 #ifdef CONFIG_STATUS_LED 149 int status_led_set_r(void) 150 { 151 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING); 152 153 return 0; 154 } 155 #endif 156 157 int set_load_addr_r(void) 158 { 159 /* Initialize from environment */ 160 load_addr = getenv_ulong("loadaddr", 16, load_addr); 161 162 return 0; 163 } 164 165 int init_func_spi(void) 166 { 167 puts("SPI: "); 168 spi_init(); 169 puts("ready\n"); 170 return 0; 171 } 172