2 * Copyright (C) 2005 Texas Instruments.
5 * Jian Zhang, Texas Instruments, jzhang@ti.com.
8 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
11 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
12 * Marius Groeger <mgroeger@sysgo.de>
14 * See file CREDITS for list of people who contributed to this
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
37 #include <asm/arch/mem.h>
39 const char version_string[] =
40 "Texas Instruments X-Loader 1.5.1 (" __DATE__ " - " __TIME__ ")";
45 printf("\n\n%s\n", version_string);
50 #ifdef CONFIG_DRIVER_OMAP34XX_I2C
51 static int init_func_i2c (void)
53 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
58 typedef int (init_fnc_t) (void);
60 init_fnc_t *init_sequence[] = {
61 cpu_init, /* basic cpu dependent setup */
62 #ifdef CONFIG_DRIVER_OMAP34XX_I2C
65 board_init, /* basic board dependent setup */
66 #ifdef CFG_NS16550_SERIAL
67 serial_init, /* serial communications setup */
70 nand_init, /* board specific nand init */
74 void start_armboot (void)
76 init_fnc_t **init_fnc_ptr;
79 int *first_instruction;
80 #if defined(CFG_ONENAND) || defined(CFG_NAND_K9F1G08R0A)
84 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr)
85 if ((*init_fnc_ptr)())
90 buf = (uchar*) CFG_LOADADDR;
91 *(int *)buf = 0xffffffff;
96 size = file_fat_read("u-boot.bin", buf, 0);
99 printf("Loading u-boot.bin from mmc\n");
106 if (buf == (uchar *)CFG_LOADADDR) {
107 /* if no u-boot on mmc, try onenand or nand, depending upon sysboot */
108 if (get_mem_type() == GPMC_ONENAND){
111 printf("Loading u-boot.bin from onenand\n");
113 for (i = ONENAND_START_BLOCK; i < ONENAND_END_BLOCK; i++){
114 if (!onenand_read_block(buf, i))
115 buf += ONENAND_BLOCK_SIZE;
118 } else if (get_mem_type() == GPMC_NAND){
119 #ifdef CFG_NAND_K9F1G08R0A
121 printf("Loading u-boot.bin from nand\n");
123 for (i = NAND_UBOOT_START; i < NAND_UBOOT_END; i+= NAND_BLOCK_SIZE){
124 if (!nand_read_block(buf, i))
125 buf += NAND_BLOCK_SIZE; /* advance buf ptr */
131 /* if u-boot not found on mmc or
132 * nand read result is erased data
135 first_instruction = (int *)CFG_LOADADDR;
136 if((buf == (uchar *)CFG_LOADADDR) || (*first_instruction == 0xffffffff)) {
137 printf("u-boot.bin not found or blank nand contents - attempting serial boot . . .\n");
138 do_load_serial_bin(CFG_LOADADDR, 115200);
141 /* go run U-Boot and never return */
142 ((init_fnc_t *)CFG_LOADADDR)();
144 /* should never come here */
149 /* call board specific hang function */
152 /* if board_hang() returns, hang here */
154 printf("X-Loader hangs\n");