3 * Texas Instruments, <www.ti.com>
5 * Aneesh V <aneesh@ti.com>
7 * See file CREDITS for list of people who contributed to this
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.
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.
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,
26 #include <asm/u-boot.h>
27 #include <asm/utils.h>
28 #include <asm/arch/sys_proto.h>
33 #include <asm/omap_common.h>
34 #include <asm/arch/mmc_host_def.h>
38 DECLARE_GLOBAL_DATA_PTR;
40 struct spl_image_info spl_image;
42 /* Define global data structure pointer to it*/
43 static gd_t gdata __attribute__ ((section(".data")));
44 static bd_t bdata __attribute__ ((section(".data")));
46 inline void hang(void)
48 puts("### ERROR ### Please RESET the board ###\n");
53 void board_init_f(ulong dummy)
56 * We call relocate_code() with relocation target same as the
57 * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting
58 * skipped. Instead, only .bss initialization will happen. That's
61 debug(">>board_init_f()\n");
62 relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE);
65 void spl_parse_image_header(const struct image_header *header)
67 u32 header_size = sizeof(struct image_header);
69 if (__be32_to_cpu(header->ih_magic) == IH_MAGIC) {
70 spl_image.size = __be32_to_cpu(header->ih_size) + header_size;
71 spl_image.entry_point = __be32_to_cpu(header->ih_load);
72 /* Load including the header */
73 spl_image.load_addr = spl_image.entry_point - header_size;
74 spl_image.os = header->ih_os;
75 spl_image.name = (const char *)&header->ih_name;
76 debug("spl: payload image: %s load addr: 0x%x size: %d\n",
77 spl_image.name, spl_image.load_addr, spl_image.size);
79 /* Signature not found - assume u-boot.bin */
80 printf("mkimage signature not found - ih_magic = %x\n",
82 puts("Assuming u-boot.bin ..\n");
83 /* Let's assume U-Boot will not be more than 200 KB */
84 spl_image.size = 200 * 1024;
85 spl_image.entry_point = CONFIG_SYS_TEXT_BASE;
86 spl_image.load_addr = CONFIG_SYS_TEXT_BASE;
87 spl_image.os = IH_OS_U_BOOT;
88 spl_image.name = "U-Boot";
92 static void jump_to_image_no_args(void)
94 typedef void (*image_entry_noargs_t)(void)__attribute__ ((noreturn));
95 image_entry_noargs_t image_entry =
96 (image_entry_noargs_t) spl_image.entry_point;
98 debug("image entry point: 0x%X\n", spl_image.entry_point);
102 void jump_to_image_no_args(void) __attribute__ ((noreturn));
103 void board_init_r(gd_t *id, ulong dummy)
106 debug(">>spl:board_init_r()\n");
109 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
111 boot_device = omap_boot_device();
112 debug("boot device - %d\n", boot_device);
113 switch (boot_device) {
114 #ifdef CONFIG_SPL_MMC_SUPPORT
115 case BOOT_DEVICE_MMC1:
116 case BOOT_DEVICE_MMC2:
117 spl_mmc_load_image();
120 #ifdef CONFIG_SPL_NAND_SUPPORT
121 case BOOT_DEVICE_NAND:
122 spl_nand_load_image();
126 printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device);
131 switch (spl_image.os) {
133 debug("Jumping to U-Boot\n");
134 jump_to_image_no_args();
137 puts("Unsupported OS image.. Jumping nevertheless..\n");
138 jump_to_image_no_args();
142 /* This requires UART clocks to be enabled */
143 void preloader_console_init(void)
145 const char *u_boot_rev = U_BOOT_VERSION;
146 char rev_string_buffer[50];
150 gd->flags |= GD_FLG_RELOC;
151 gd->baudrate = CONFIG_BAUDRATE;
153 serial_init(); /* serial communications setup */
155 /* Avoid a second "U-Boot" coming from this string */
156 u_boot_rev = &u_boot_rev[7];
158 printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE,
160 omap_rev_string(rev_string_buffer);
161 printf("Texas Instruments %s\n", rev_string_buffer);