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>
39 DECLARE_GLOBAL_DATA_PTR
;
41 u32
* boot_params_ptr
= NULL
;
42 struct spl_image_info spl_image
;
44 /* Define global data structure pointer to it*/
45 static gd_t gdata
__attribute__ ((section(".data")));
46 static bd_t bdata
__attribute__ ((section(".data")));
48 inline void hang(void)
50 puts("### ERROR ### Please RESET the board ###\n");
55 void board_init_f(ulong dummy
)
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
63 debug(">>board_init_f()\n");
64 relocate_code(CONFIG_SPL_STACK
, &gdata
, CONFIG_SPL_TEXT_BASE
);
67 void spl_parse_image_header(const struct image_header
*header
)
69 u32 header_size
= sizeof(struct image_header
);
71 if (__be32_to_cpu(header
->ih_magic
) == IH_MAGIC
) {
72 spl_image
.size
= __be32_to_cpu(header
->ih_size
) + header_size
;
73 spl_image
.entry_point
= __be32_to_cpu(header
->ih_load
);
74 /* Load including the header */
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
;
78 debug("spl: payload image: %s load addr: 0x%x size: %d\n",
79 spl_image
.name
, spl_image
.load_addr
, spl_image
.size
);
81 /* Signature not found - assume u-boot.bin */
82 printf("mkimage signature not found - ih_magic = %x\n",
84 puts("Assuming u-boot.bin ..\n");
85 /* Let's assume U-Boot will not be more than 200 KB */
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";
94 static void jump_to_image_no_args(void)
96 typedef void (*image_entry_noargs_t
)(u32
*)__attribute__ ((noreturn
));
97 image_entry_noargs_t image_entry
=
98 (image_entry_noargs_t
) spl_image
.entry_point
;
100 debug("image entry point: 0x%X\n", spl_image
.entry_point
);
101 /* Pass the saved boot_params from rom code */
102 #if defined(CONFIG_VIRTIO) || defined(CONFIG_ZEBU)
103 image_entry
= 0x80100000;
105 image_entry((u32
*)&boot_params_ptr
);
108 void jump_to_image_no_args(void) __attribute__ ((noreturn
));
109 void board_init_r(gd_t
*id
, ulong dummy
)
112 debug(">>spl:board_init_r()\n");
114 mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START
,
115 CONFIG_SYS_SPL_MALLOC_SIZE
);
119 #ifdef CONFIG_SPL_BOARD_INIT
123 boot_device
= omap_boot_device();
124 debug("boot device - %d\n", boot_device
);
125 switch (boot_device
) {
126 #ifdef CONFIG_SPL_MMC_SUPPORT
127 case BOOT_DEVICE_MMC1
:
128 case BOOT_DEVICE_MMC2
:
129 spl_mmc_load_image();
132 #ifdef CONFIG_SPL_NAND_SUPPORT
133 case BOOT_DEVICE_NAND
:
134 spl_nand_load_image();
138 printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device
);
143 switch (spl_image
.os
) {
145 debug("Jumping to U-Boot\n");
146 jump_to_image_no_args();
149 puts("Unsupported OS image.. Jumping nevertheless..\n");
150 jump_to_image_no_args();
154 /* This requires UART clocks to be enabled */
155 void preloader_console_init(void)
157 const char *u_boot_rev
= U_BOOT_VERSION
;
158 char rev_string_buffer
[50];
162 gd
->flags
|= GD_FLG_RELOC
;
163 gd
->baudrate
= CONFIG_BAUDRATE
;
165 serial_init(); /* serial communications setup */
167 gd
->have_console
= 1;
169 /* Avoid a second "U-Boot" coming from this string */
170 u_boot_rev
= &u_boot_rev
[7];
172 printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev
, U_BOOT_DATE
,
174 omap_rev_string(rev_string_buffer
);
175 printf("Texas Instruments %s\n", rev_string_buffer
);
178 void __omap_rev_string(char *str
)
180 sprintf(str
, "Revision detection unimplemented");
183 void omap_rev_string(char *str
)
184 __attribute__((weak
, alias("__omap_rev_string")));