97 lines
1.7 KiB
C
97 lines
1.7 KiB
C
#include <common.h>
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#include <partition.h>
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#include <nand.h>
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#include <driver.h>
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#include <linux/mtd/mtd.h>
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#include <fs.h>
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#include <fcntl.h>
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#include <mach/xload.h>
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#include <sizes.h>
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void *omap_xload_boot_nand(int offset, int size)
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{
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int ret;
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void *to = xmalloc(size);
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struct cdev *cdev;
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devfs_add_partition("nand0", offset, size, PARTITION_FIXED, "x");
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dev_add_bb_dev("x", "bbx");
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cdev = cdev_open("bbx", O_RDONLY);
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if (!cdev) {
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printf("failed to open nand\n");
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return NULL;
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}
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ret = cdev_read(cdev, to, size, 0, 0);
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if (ret != size) {
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printf("failed to read from nand\n");
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return NULL;
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}
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return to;
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}
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void *omap_xload_boot_mmc(void)
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{
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int ret;
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void *buf;
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int len;
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const char *diskdev = "disk0.0";
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ret = mount(diskdev, "fat", "/");
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if (ret) {
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printf("Unable to mount %s (%d)\n", diskdev, ret);
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return NULL;
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}
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buf = read_file("/barebox.bin", &len);
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if (!buf) {
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printf("could not read barebox.bin from sd card\n");
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return NULL;
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}
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return buf;
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}
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enum omap_boot_src omap_bootsrc(void)
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{
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#if defined(CONFIG_ARCH_OMAP3)
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return omap3_bootsrc();
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#elif defined(CONFIG_ARCH_OMAP4)
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return omap4_bootsrc();
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#endif
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}
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/*
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* Replaces the default shell in xload configuration
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*/
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int run_shell(void)
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{
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int (*func)(void) = NULL;
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switch (omap_bootsrc())
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{
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case OMAP_BOOTSRC_MMC1:
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printf("booting from MMC1\n");
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func = omap_xload_boot_mmc();
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break;
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case OMAP_BOOTSRC_UNKNOWN:
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printf("unknown boot source. Fall back to nand\n");
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case OMAP_BOOTSRC_NAND:
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printf("booting from NAND\n");
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func = omap_xload_boot_nand(SZ_128K, SZ_256K);
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break;
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}
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if (!func) {
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printf("booting failed\n");
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while (1);
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}
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shutdown_barebox();
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func();
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while (1);
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}
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