Add support for booting from an MMC card. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Henrik Nordström <henrik@henriknordstrom.net> Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Marek Vasut <marex@denx.de> Cc: Tom Cubie <Mr.hipboi@gmail.com> Reviewed-by: Tom Rini <trini@ti.com>master
Ian Campbell
10 years ago
committed by
Albert ARIBAUD
parent
e24ea55c04
commit
50827a5991
@ -0,0 +1,8 @@ |
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# Build a combined spl + u-boot image
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ifdef CONFIG_SPL |
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ifndef CONFIG_SPL_BUILD |
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ifndef CONFIG_SPL_FEL |
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ALL-y += u-boot-sunxi-with-spl.bin
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endif |
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endif |
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endif |
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@ -0,0 +1,52 @@ |
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/* |
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* (C) Copyright 2012 |
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com> |
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* Tom Cubie <tangliang@allwinnertech.com> |
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* |
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* Based on omap-common/u-boot-spl.lds: |
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* |
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* (C) Copyright 2002 |
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* Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> |
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* |
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* (C) Copyright 2010 |
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* Texas Instruments, <www.ti.com> |
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* Aneesh V <aneesh@ti.com> |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE,\ |
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LENGTH = CONFIG_SPL_MAX_SIZE } |
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MEMORY { .sdram : ORIGIN = CONFIG_SPL_BSS_START_ADDR, \ |
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LENGTH = CONFIG_SPL_BSS_MAX_SIZE } |
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OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") |
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OUTPUT_ARCH(arm) |
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ENTRY(_start) |
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SECTIONS |
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{ |
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.text : |
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{ |
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__start = .; |
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arch/arm/cpu/armv7/start.o (.text) |
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*(.text*) |
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} > .sram |
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. = ALIGN(4); |
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.rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } >.sram |
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. = ALIGN(4); |
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.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram |
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. = ALIGN(4); |
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__image_copy_end = .; |
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_end = .; |
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.bss : |
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{ |
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. = ALIGN(4); |
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__bss_start = .; |
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*(.bss*) |
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. = ALIGN(4); |
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__bss_end = .; |
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} > .sdram |
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} |
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@ -0,0 +1,142 @@ |
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/*
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* (C) Copyright 2007-2011 |
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com> |
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* Tom Cubie <tangliang@allwinnertech.com> |
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* |
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* a simple tool to generate bootable image for sunxi platform. |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#include <fcntl.h> |
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#include <stdio.h> |
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#include <unistd.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <errno.h> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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/* boot head definition from sun4i boot code */ |
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struct boot_file_head { |
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uint32_t b_instruction; /* one intruction jumping to real code */ |
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uint8_t magic[8]; /* ="eGON.BT0" or "eGON.BT1", not C-style str */ |
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uint32_t check_sum; /* generated by PC */ |
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uint32_t length; /* generated by PC */ |
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/*
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* We use a simplified header, only filling in what is needed |
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* by the boot ROM. To be compatible with Allwinner tools we |
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* would need to implement the proper fields here instead of |
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* padding. |
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*/ |
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uint8_t pad[12]; /* align to 32 bytes */ |
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}; |
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#define BOOT0_MAGIC "eGON.BT0" |
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#define STAMP_VALUE 0x5F0A6C39 |
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/* check sum functon from sun4i boot code */ |
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int gen_check_sum(struct boot_file_head *head_p) |
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{ |
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uint32_t length; |
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uint32_t *buf; |
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uint32_t loop; |
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uint32_t i; |
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uint32_t sum; |
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length = head_p->length; |
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if ((length & 0x3) != 0) /* must 4-byte-aligned */ |
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return -1; |
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buf = (uint32_t *)head_p; |
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head_p->check_sum = STAMP_VALUE; /* fill stamp */ |
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loop = length >> 2; |
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/* calculate the sum */ |
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for (i = 0, sum = 0; i < loop; i++) |
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sum += buf[i]; |
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/* write back check sum */ |
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head_p->check_sum = sum; |
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return 0; |
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} |
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#define ALIGN(x, a) __ALIGN_MASK((x), (typeof(x))(a)-1) |
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#define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask)) |
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#define SUN4I_SRAM_SIZE 0x7600 /* 0x7748+ is used by BROM */ |
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#define SRAM_LOAD_MAX_SIZE (SUN4I_SRAM_SIZE - sizeof(struct boot_file_head)) |
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#define BLOCK_SIZE 512 |
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struct boot_img { |
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struct boot_file_head header; |
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char code[SRAM_LOAD_MAX_SIZE]; |
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char pad[BLOCK_SIZE]; |
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}; |
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int main(int argc, char *argv[]) |
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{ |
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int fd_in, fd_out; |
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struct boot_img img; |
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unsigned file_size, load_size; |
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int count; |
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if (argc < 2) { |
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printf("\tThis program makes an input bin file to sun4i " \
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"bootable image.\n" \
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"\tUsage: %s input_file out_putfile\n", argv[0]); |
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return EXIT_FAILURE; |
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} |
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fd_in = open(argv[1], O_RDONLY); |
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if (fd_in < 0) { |
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perror("Open input file"); |
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return EXIT_FAILURE; |
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} |
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memset(img.pad, 0, BLOCK_SIZE); |
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/* get input file size */ |
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file_size = lseek(fd_in, 0, SEEK_END); |
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if (file_size > SRAM_LOAD_MAX_SIZE) { |
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fprintf(stderr, "ERROR: File too large!\n"); |
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return EXIT_FAILURE; |
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} else { |
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load_size = ALIGN(file_size, sizeof(int)); |
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} |
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fd_out = open(argv[2], O_WRONLY | O_CREAT, 0666); |
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if (fd_out < 0) { |
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perror("Open output file"); |
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return EXIT_FAILURE; |
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} |
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/* read file to buffer to calculate checksum */ |
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lseek(fd_in, 0, SEEK_SET); |
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count = read(fd_in, img.code, load_size); |
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if (count != load_size) { |
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perror("Reading input image"); |
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return EXIT_FAILURE; |
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} |
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/* fill the header */ |
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img.header.b_instruction = /* b instruction */ |
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0xEA000000 | /* jump to the first instr after the header */ |
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((sizeof(struct boot_file_head) / sizeof(int) - 2) |
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& 0x00FFFFFF); |
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memcpy(img.header.magic, BOOT0_MAGIC, 8); /* no '0' termination */ |
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img.header.length = |
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ALIGN(load_size + sizeof(struct boot_file_head), BLOCK_SIZE); |
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gen_check_sum(&img.header); |
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count = write(fd_out, &img, img.header.length); |
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if (count != img.header.length) { |
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perror("Writing output"); |
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return EXIT_FAILURE; |
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} |
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close(fd_in); |
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close(fd_out); |
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return EXIT_SUCCESS; |
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} |
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