Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2010 |
| 3 | * Texas Instruments, <www.ti.com> |
| 4 | * |
| 5 | * Aneesh V <aneesh@ti.com> |
| 6 | * |
| 7 | * See file CREDITS for list of people who contributed to this |
| 8 | * project. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU General Public License as |
| 12 | * published by the Free Software Foundation; either version 2 of |
| 13 | * the License, or (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 23 | * MA 02111-1307 USA |
| 24 | */ |
| 25 | #include <common.h> |
| 26 | #include <asm/u-boot.h> |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 27 | #include <asm/utils.h> |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 28 | #include <asm/arch/sys_proto.h> |
Simon Schwarz | bb085b8 | 2011-09-14 15:29:26 -0400 | [diff] [blame] | 29 | #include <nand.h> |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 30 | #include <mmc.h> |
| 31 | #include <fat.h> |
Simon Glass | efb2172 | 2011-10-10 08:55:19 +0000 | [diff] [blame] | 32 | #include <version.h> |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 33 | #include <asm/omap_common.h> |
| 34 | #include <asm/arch/mmc_host_def.h> |
| 35 | #include <i2c.h> |
| 36 | #include <image.h> |
Aneesh V | 2d01dd9 | 2011-10-21 12:29:34 -0400 | [diff] [blame] | 37 | #include <malloc.h> |
Andreas Müller | 761ca31 | 2012-01-04 15:26:24 +0000 | [diff] [blame^] | 38 | #include <linux/compiler.h> |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 39 | |
| 40 | DECLARE_GLOBAL_DATA_PTR; |
| 41 | |
Sricharan | 78f455c | 2011-11-15 09:50:03 -0500 | [diff] [blame] | 42 | u32* boot_params_ptr = NULL; |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 43 | struct spl_image_info spl_image; |
| 44 | |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 45 | /* Define global data structure pointer to it*/ |
| 46 | static gd_t gdata __attribute__ ((section(".data"))); |
| 47 | static bd_t bdata __attribute__ ((section(".data"))); |
| 48 | |
| 49 | inline void hang(void) |
| 50 | { |
| 51 | puts("### ERROR ### Please RESET the board ###\n"); |
| 52 | for (;;) |
| 53 | ; |
| 54 | } |
| 55 | |
| 56 | void board_init_f(ulong dummy) |
| 57 | { |
| 58 | /* |
| 59 | * We call relocate_code() with relocation target same as the |
| 60 | * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting |
| 61 | * skipped. Instead, only .bss initialization will happen. That's |
| 62 | * all we need |
| 63 | */ |
| 64 | debug(">>board_init_f()\n"); |
| 65 | relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE); |
| 66 | } |
| 67 | |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 68 | void spl_parse_image_header(const struct image_header *header) |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 69 | { |
| 70 | u32 header_size = sizeof(struct image_header); |
| 71 | |
| 72 | if (__be32_to_cpu(header->ih_magic) == IH_MAGIC) { |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 73 | spl_image.size = __be32_to_cpu(header->ih_size) + header_size; |
| 74 | spl_image.entry_point = __be32_to_cpu(header->ih_load); |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 75 | /* Load including the header */ |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 76 | spl_image.load_addr = spl_image.entry_point - header_size; |
| 77 | spl_image.os = header->ih_os; |
| 78 | spl_image.name = (const char *)&header->ih_name; |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 79 | debug("spl: payload image: %s load addr: 0x%x size: %d\n", |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 80 | spl_image.name, spl_image.load_addr, spl_image.size); |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 81 | } else { |
| 82 | /* Signature not found - assume u-boot.bin */ |
| 83 | printf("mkimage signature not found - ih_magic = %x\n", |
| 84 | header->ih_magic); |
| 85 | puts("Assuming u-boot.bin ..\n"); |
| 86 | /* Let's assume U-Boot will not be more than 200 KB */ |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 87 | spl_image.size = 200 * 1024; |
| 88 | spl_image.entry_point = CONFIG_SYS_TEXT_BASE; |
| 89 | spl_image.load_addr = CONFIG_SYS_TEXT_BASE; |
| 90 | spl_image.os = IH_OS_U_BOOT; |
| 91 | spl_image.name = "U-Boot"; |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 92 | } |
| 93 | } |
| 94 | |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 95 | static void jump_to_image_no_args(void) |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 96 | { |
Sricharan | 78f455c | 2011-11-15 09:50:03 -0500 | [diff] [blame] | 97 | typedef void (*image_entry_noargs_t)(u32 *)__attribute__ ((noreturn)); |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 98 | image_entry_noargs_t image_entry = |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 99 | (image_entry_noargs_t) spl_image.entry_point; |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 100 | |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 101 | debug("image entry point: 0x%X\n", spl_image.entry_point); |
Sricharan | 78f455c | 2011-11-15 09:50:03 -0500 | [diff] [blame] | 102 | /* Pass the saved boot_params from rom code */ |
| 103 | #if defined(CONFIG_VIRTIO) || defined(CONFIG_ZEBU) |
Anatolij Gustschin | b0a86a2 | 2011-12-03 06:46:13 +0000 | [diff] [blame] | 104 | image_entry = (image_entry_noargs_t)0x80100000; |
Sricharan | 78f455c | 2011-11-15 09:50:03 -0500 | [diff] [blame] | 105 | #endif |
Anatolij Gustschin | b0a86a2 | 2011-12-03 06:46:13 +0000 | [diff] [blame] | 106 | u32 boot_params_ptr_addr = (u32)&boot_params_ptr; |
| 107 | image_entry((u32 *)boot_params_ptr_addr); |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | void jump_to_image_no_args(void) __attribute__ ((noreturn)); |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 111 | void board_init_r(gd_t *id, ulong dummy) |
| 112 | { |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 113 | u32 boot_device; |
| 114 | debug(">>spl:board_init_r()\n"); |
| 115 | |
Aneesh V | 2d01dd9 | 2011-10-21 12:29:34 -0400 | [diff] [blame] | 116 | mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START, |
| 117 | CONFIG_SYS_SPL_MALLOC_SIZE); |
| 118 | |
Tom Rini | ee08a82 | 2011-11-23 05:13:06 +0000 | [diff] [blame] | 119 | #ifdef CONFIG_SPL_BOARD_INIT |
| 120 | spl_board_init(); |
| 121 | #endif |
| 122 | |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 123 | boot_device = omap_boot_device(); |
| 124 | debug("boot device - %d\n", boot_device); |
| 125 | switch (boot_device) { |
Simon Schwarz | bb085b8 | 2011-09-14 15:29:26 -0400 | [diff] [blame] | 126 | #ifdef CONFIG_SPL_MMC_SUPPORT |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 127 | case BOOT_DEVICE_MMC1: |
| 128 | case BOOT_DEVICE_MMC2: |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 129 | spl_mmc_load_image(); |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 130 | break; |
Simon Schwarz | bb085b8 | 2011-09-14 15:29:26 -0400 | [diff] [blame] | 131 | #endif |
| 132 | #ifdef CONFIG_SPL_NAND_SUPPORT |
| 133 | case BOOT_DEVICE_NAND: |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 134 | spl_nand_load_image(); |
Simon Schwarz | bb085b8 | 2011-09-14 15:29:26 -0400 | [diff] [blame] | 135 | break; |
| 136 | #endif |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 137 | default: |
| 138 | printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device); |
| 139 | hang(); |
| 140 | break; |
| 141 | } |
| 142 | |
Simon Schwarz | 9ea5c6e | 2011-09-14 15:33:34 -0400 | [diff] [blame] | 143 | switch (spl_image.os) { |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 144 | case IH_OS_U_BOOT: |
| 145 | debug("Jumping to U-Boot\n"); |
| 146 | jump_to_image_no_args(); |
| 147 | break; |
| 148 | default: |
| 149 | puts("Unsupported OS image.. Jumping nevertheless..\n"); |
| 150 | jump_to_image_no_args(); |
| 151 | } |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 152 | } |
| 153 | |
Simon Schwarz | 63ffcfc | 2011-09-14 15:14:46 -0400 | [diff] [blame] | 154 | /* This requires UART clocks to be enabled */ |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 155 | void preloader_console_init(void) |
| 156 | { |
| 157 | const char *u_boot_rev = U_BOOT_VERSION; |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 158 | |
| 159 | gd = &gdata; |
| 160 | gd->bd = &bdata; |
| 161 | gd->flags |= GD_FLG_RELOC; |
| 162 | gd->baudrate = CONFIG_BAUDRATE; |
| 163 | |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 164 | serial_init(); /* serial communications setup */ |
| 165 | |
Ilya Yanok | b88befa | 2011-11-01 13:16:03 +0000 | [diff] [blame] | 166 | gd->have_console = 1; |
| 167 | |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 168 | /* Avoid a second "U-Boot" coming from this string */ |
| 169 | u_boot_rev = &u_boot_rev[7]; |
| 170 | |
| 171 | printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE, |
| 172 | U_BOOT_TIME); |
Andreas Müller | 761ca31 | 2012-01-04 15:26:24 +0000 | [diff] [blame^] | 173 | omap_rev_string(); |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 174 | } |
Tom Rini | cc3f705 | 2011-10-04 04:59:23 +0000 | [diff] [blame] | 175 | |
Andreas Müller | 761ca31 | 2012-01-04 15:26:24 +0000 | [diff] [blame^] | 176 | void __weak omap_rev_string() |
Tom Rini | cc3f705 | 2011-10-04 04:59:23 +0000 | [diff] [blame] | 177 | { |
Andreas Müller | 761ca31 | 2012-01-04 15:26:24 +0000 | [diff] [blame^] | 178 | printf("Texas Instruments Revision detection unimplemented\n"); |
Tom Rini | cc3f705 | 2011-10-04 04:59:23 +0000 | [diff] [blame] | 179 | } |