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,
36 #include <asm/arch/mem.h>
38 const char version_string[] =
39 "Texas Instruments X-Loader 1.4.2 (" __DATE__ " - " __TIME__ ")";
44 printf("\n\n%s\n", version_string);
49 static int init_func_i2c (void)
52 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
57 typedef int (init_fnc_t) (void);
59 init_fnc_t *init_sequence[] = {
60 cpu_init, /* basic cpu dependent setup */
61 board_init, /* basic board dependent setup */
63 serial_init, /* serial communications setup */
66 nand_init, /* board specific nand init */
73 void start_armboot (void)
75 init_fnc_t **init_fnc_ptr;
78 block_dev_desc_t *dev_desc = NULL;
80 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
81 if ((*init_fnc_ptr)() != 0) {
88 buf = (uchar*) CFG_LOADADDR;
93 size = file_fat_read("u-boot.bin", buf, 0);
96 printf("Loading u-boot.bin from MMC\n");
97 printf("\n%ld Bytes Read from MMC \n", size);
104 if (buf == (uchar *)CFG_LOADADDR) {
105 /* if no u-boot on mmc, try onenand or nand, depending upon sysboot */
106 if (get_mem_type() == GPMC_ONENAND){
108 printf("Loading u-boot.bin from onenand\n");
110 for (i = ONENAND_START_BLOCK; i < ONENAND_END_BLOCK; i++){
111 if (!onenand_read_block(buf, i))
112 buf += ONENAND_BLOCK_SIZE;
114 } else if (get_mem_type() == GPMC_NAND){
116 printf("Loading u-boot.bin from NAND\n");
118 for (i = NAND_UBOOT_START; i < NAND_UBOOT_END; i+= NAND_BLOCK_SIZE){
119 if (!nand_read_block(buf, i))
120 buf += NAND_BLOCK_SIZE; /* advance buf ptr */
126 if (buf == (uchar *)CFG_LOADADDR)
130 printf("Starting Stage 2 Bootloader...\n");
133 /* go run U-Boot and never return */
134 ((init_fnc_t *)CFG_LOADADDR)();
136 /* should never come here */
141 /* call board specific hang function */
144 /* if board_hang() returns, hange here */
146 printf("X-Loader hangs\n");