diff options
Diffstat (limited to 'x-loader/lib/board.c')
| m--------- | x-loader | 0 | ||||
| -rw-r--r-- | x-loader/lib/board.c | 151 |
2 files changed, 151 insertions, 0 deletions
diff --git a/x-loader b/x-loader deleted file mode 160000 -Subproject 1c9276af4d6a5b7014a7630a1abeddf3b317756 diff --git a/x-loader/lib/board.c b/x-loader/lib/board.c new file mode 100644 index 0000000..88fd381 --- /dev/null +++ b/x-loader/lib/board.c @@ -0,0 +1,151 @@ +/* + * Copyright (C) 2005 Texas Instruments. + * + * (C) Copyright 2004 + * Jian Zhang, Texas Instruments, jzhang@ti.com. + * + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <part.h> +#include <fat.h> +#include <asm/arch/mem.h> + +const char version_string[] = + "Texas Instruments X-Loader 1.4.4ss (" __DATE__ " - " __TIME__ ")"; + +int print_info(void) +{ +#ifdef CFG_PRINTF + printf("\n\n%s\n", version_string); +#endif + return 0; +} + +static int init_func_i2c (void) +{ +#ifdef CONFIG_MMC + i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE); +#endif + return 0; +} + +typedef int (init_fnc_t) (void); + +init_fnc_t *init_sequence[] = { + cpu_init, /* basic cpu dependent setup */ + board_init, /* basic board dependent setup */ +#ifdef CFG_NS16550_SERIAL + serial_init, /* serial communications setup */ +#endif + print_info, + nand_init, /* board specific nand init */ +#ifdef CONFIG_MMC + init_func_i2c, +#endif + NULL, +}; + +void start_armboot (void) +{ + init_fnc_t **init_fnc_ptr; + int i, size; + uchar *buf; + int *first_instruction; + block_dev_desc_t *dev_desc = NULL; + + for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { + if ((*init_fnc_ptr)() != 0) { + hang (); + } + } + + misc_init_r(); + + buf = (uchar*) CFG_LOADADDR; + +#ifdef CONFIG_MMC + /* first try mmc */ + if (mmc_init(1)) { + size = file_fat_read("u-boot.bin", buf, 0); + if (size > 0) { +#ifdef CFG_PRINTF + printf("Loading u-boot.bin from mmc\n"); +#endif + buf += size; + } + } +#endif + + if (buf == (uchar *)CFG_LOADADDR) { + /* if no u-boot on mmc, try onenand or nand, depending upon sysboot */ + if (get_mem_type() == GPMC_ONENAND){ +#ifdef CFG_PRINTF + printf("Loading u-boot.bin from onenand\n"); +#endif + for (i = ONENAND_START_BLOCK; i < ONENAND_END_BLOCK; i++){ + if (!onenand_read_block(buf, i)) + buf += ONENAND_BLOCK_SIZE; + } + } else if (get_mem_type() == GPMC_NAND){ +#ifdef CFG_PRINTF + printf("Loading u-boot.bin from nand\n"); +#endif + for (i = NAND_UBOOT_START; i < NAND_UBOOT_END; i+= NAND_BLOCK_SIZE){ + if (!nand_read_block(buf, i)) + buf += NAND_BLOCK_SIZE; /* advance buf ptr */ + } + } + } + + /* if u-boot not found on mmc or + * nand read result is erased data + * then serial boot + */ + first_instruction = (int *)CFG_LOADADDR; + if((buf == (uchar *)CFG_LOADADDR) || (*first_instruction == 0xffffffff)) { + printf("u-boot.bin not found or blank nand contents - attempting serial boot . . .\n"); + do_load_serial_bin(CFG_LOADADDR, 115200); + } + + /* go run U-Boot and never return */ + ((init_fnc_t *)CFG_LOADADDR)(); + + /* should never come here */ +} + +void hang (void) +{ + /* call board specific hang function */ + board_hang(); + + /* if board_hang() returns, hang here */ +#ifdef CFG_PRINTF + printf("X-Loader hangs\n"); +#endif + for (;;); +} |