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bcae7211 A |
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> | |
8cf686e1 | 27 | #include <asm/utils.h> |
bcae7211 | 28 | #include <asm/arch/sys_proto.h> |
bb085b87 | 29 | #include <nand.h> |
8cf686e1 A |
30 | #include <mmc.h> |
31 | #include <fat.h> | |
efb2172e | 32 | #include <version.h> |
8cf686e1 A |
33 | #include <asm/omap_common.h> |
34 | #include <asm/arch/mmc_host_def.h> | |
35 | #include <i2c.h> | |
36 | #include <image.h> | |
2d01dd95 | 37 | #include <malloc.h> |
bcae7211 A |
38 | |
39 | DECLARE_GLOBAL_DATA_PTR; | |
40 | ||
78f455c0 | 41 | u32* boot_params_ptr = NULL; |
9ea5c6ef SS |
42 | struct spl_image_info spl_image; |
43 | ||
bcae7211 A |
44 | /* Define global data structure pointer to it*/ |
45 | static gd_t gdata __attribute__ ((section(".data"))); | |
46 | static bd_t bdata __attribute__ ((section(".data"))); | |
47 | ||
48 | inline void hang(void) | |
49 | { | |
50 | puts("### ERROR ### Please RESET the board ###\n"); | |
51 | for (;;) | |
52 | ; | |
53 | } | |
54 | ||
55 | void board_init_f(ulong dummy) | |
56 | { | |
57 | /* | |
58 | * We call relocate_code() with relocation target same as the | |
59 | * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting | |
60 | * skipped. Instead, only .bss initialization will happen. That's | |
61 | * all we need | |
62 | */ | |
63 | debug(">>board_init_f()\n"); | |
64 | relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE); | |
65 | } | |
66 | ||
9ea5c6ef | 67 | void spl_parse_image_header(const struct image_header *header) |
8cf686e1 A |
68 | { |
69 | u32 header_size = sizeof(struct image_header); | |
70 | ||
71 | if (__be32_to_cpu(header->ih_magic) == IH_MAGIC) { | |
9ea5c6ef SS |
72 | spl_image.size = __be32_to_cpu(header->ih_size) + header_size; |
73 | spl_image.entry_point = __be32_to_cpu(header->ih_load); | |
8cf686e1 | 74 | /* Load including the header */ |
9ea5c6ef SS |
75 | spl_image.load_addr = spl_image.entry_point - header_size; |
76 | spl_image.os = header->ih_os; | |
77 | spl_image.name = (const char *)&header->ih_name; | |
8cf686e1 | 78 | debug("spl: payload image: %s load addr: 0x%x size: %d\n", |
9ea5c6ef | 79 | spl_image.name, spl_image.load_addr, spl_image.size); |
8cf686e1 A |
80 | } else { |
81 | /* Signature not found - assume u-boot.bin */ | |
82 | printf("mkimage signature not found - ih_magic = %x\n", | |
83 | header->ih_magic); | |
84 | puts("Assuming u-boot.bin ..\n"); | |
85 | /* Let's assume U-Boot will not be more than 200 KB */ | |
9ea5c6ef SS |
86 | spl_image.size = 200 * 1024; |
87 | spl_image.entry_point = CONFIG_SYS_TEXT_BASE; | |
88 | spl_image.load_addr = CONFIG_SYS_TEXT_BASE; | |
89 | spl_image.os = IH_OS_U_BOOT; | |
90 | spl_image.name = "U-Boot"; | |
8cf686e1 A |
91 | } |
92 | } | |
93 | ||
9ea5c6ef | 94 | static void jump_to_image_no_args(void) |
8cf686e1 | 95 | { |
78f455c0 | 96 | typedef void (*image_entry_noargs_t)(u32 *)__attribute__ ((noreturn)); |
8cf686e1 | 97 | image_entry_noargs_t image_entry = |
9ea5c6ef | 98 | (image_entry_noargs_t) spl_image.entry_point; |
8cf686e1 | 99 | |
9ea5c6ef | 100 | debug("image entry point: 0x%X\n", spl_image.entry_point); |
78f455c0 S |
101 | /* Pass the saved boot_params from rom code */ |
102 | #if defined(CONFIG_VIRTIO) || defined(CONFIG_ZEBU) | |
103 | image_entry = 0x80100000; | |
104 | #endif | |
105 | image_entry((u32 *)&boot_params_ptr); | |
8cf686e1 A |
106 | } |
107 | ||
108 | void jump_to_image_no_args(void) __attribute__ ((noreturn)); | |
bcae7211 A |
109 | void board_init_r(gd_t *id, ulong dummy) |
110 | { | |
8cf686e1 A |
111 | u32 boot_device; |
112 | debug(">>spl:board_init_r()\n"); | |
113 | ||
2d01dd95 A |
114 | mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START, |
115 | CONFIG_SYS_SPL_MALLOC_SIZE); | |
116 | ||
8cf686e1 A |
117 | timer_init(); |
118 | i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); | |
119 | ||
120 | boot_device = omap_boot_device(); | |
121 | debug("boot device - %d\n", boot_device); | |
122 | switch (boot_device) { | |
bb085b87 | 123 | #ifdef CONFIG_SPL_MMC_SUPPORT |
8cf686e1 A |
124 | case BOOT_DEVICE_MMC1: |
125 | case BOOT_DEVICE_MMC2: | |
9ea5c6ef | 126 | spl_mmc_load_image(); |
8cf686e1 | 127 | break; |
bb085b87 SS |
128 | #endif |
129 | #ifdef CONFIG_SPL_NAND_SUPPORT | |
130 | case BOOT_DEVICE_NAND: | |
9ea5c6ef | 131 | spl_nand_load_image(); |
bb085b87 SS |
132 | break; |
133 | #endif | |
8cf686e1 A |
134 | default: |
135 | printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device); | |
136 | hang(); | |
137 | break; | |
138 | } | |
139 | ||
9ea5c6ef | 140 | switch (spl_image.os) { |
8cf686e1 A |
141 | case IH_OS_U_BOOT: |
142 | debug("Jumping to U-Boot\n"); | |
143 | jump_to_image_no_args(); | |
144 | break; | |
145 | default: | |
146 | puts("Unsupported OS image.. Jumping nevertheless..\n"); | |
147 | jump_to_image_no_args(); | |
148 | } | |
bcae7211 A |
149 | } |
150 | ||
63ffcfcb | 151 | /* This requires UART clocks to be enabled */ |
bcae7211 A |
152 | void preloader_console_init(void) |
153 | { | |
154 | const char *u_boot_rev = U_BOOT_VERSION; | |
155 | char rev_string_buffer[50]; | |
156 | ||
157 | gd = &gdata; | |
158 | gd->bd = &bdata; | |
159 | gd->flags |= GD_FLG_RELOC; | |
160 | gd->baudrate = CONFIG_BAUDRATE; | |
161 | ||
bcae7211 A |
162 | serial_init(); /* serial communications setup */ |
163 | ||
b88befa5 IY |
164 | gd->have_console = 1; |
165 | ||
bcae7211 A |
166 | /* Avoid a second "U-Boot" coming from this string */ |
167 | u_boot_rev = &u_boot_rev[7]; | |
168 | ||
169 | printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE, | |
170 | U_BOOT_TIME); | |
171 | omap_rev_string(rev_string_buffer); | |
172 | printf("Texas Instruments %s\n", rev_string_buffer); | |
173 | } | |
cc3f7058 TR |
174 | |
175 | void __omap_rev_string(char *str) | |
176 | { | |
177 | sprintf(str, "Revision detection unimplemented"); | |
178 | } | |
179 | ||
180 | void omap_rev_string(char *str) | |
181 | __attribute__((weak, alias("__omap_rev_string"))); |