diff options
| author | Petr Kulhavy <brain@jikos.cz> | 2016-09-09 10:27:16 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-10-01 20:04:51 -0400 |
| commit | b6dd69a4d6b20862a2075f402f9edfb0de6d14ed (patch) | |
| tree | cde16c70cc63077087cdfb209d812a1d7a5980b8 /common/fb_mmc.c | |
| parent | 87b8530fe24408b0ef41c9b80f38c395ccafad2c (diff) | |
fastboot: add support for writing MBR
Add special target "mbr" (otherwise configurable via CONFIG_FASTBOOT_MBR_NAME)
to write MBR partition table.
Partitions are now searched using the generic function which finds any
partiiton by name. For MBR the partition names hda1, sda1, etc. are used.
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Steve Rae <steve.rae@raedomain.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common/fb_mmc.c')
| -rw-r--r-- | common/fb_mmc.c | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/common/fb_mmc.c b/common/fb_mmc.c index a0a4a83143..4bc68a7657 100644 --- a/common/fb_mmc.c +++ b/common/fb_mmc.c @@ -14,15 +14,20 @@ #include <mmc.h> #include <div64.h> -#ifndef CONFIG_FASTBOOT_GPT_NAME +#if defined(CONFIG_EFI_PARTITION) && !defined(CONFIG_FASTBOOT_GPT_NAME) #define CONFIG_FASTBOOT_GPT_NAME GPT_ENTRY_NAME #endif + +#if defined(CONFIG_DOS_PARTITION) && !defined(CONFIG_FASTBOOT_MBR_NAME) +#define CONFIG_FASTBOOT_MBR_NAME "mbr" +#endif + struct fb_mmc_sparse { struct blk_desc *dev_desc; }; -static int part_get_info_efi_by_name_or_alias(struct blk_desc *dev_desc, +static int part_get_info_by_name_or_alias(struct blk_desc *dev_desc, const char *name, disk_partition_t *info) { int ret; @@ -103,6 +108,7 @@ void fb_mmc_flash_write(const char *cmd, void *download_buffer, return; } +#ifdef CONFIG_EFI_PARTITION if (strcmp(cmd, CONFIG_FASTBOOT_GPT_NAME) == 0) { printf("%s: updating MBR, Primary and Backup GPT(s)\n", __func__); @@ -114,14 +120,36 @@ void fb_mmc_flash_write(const char *cmd, void *download_buffer, } if (write_mbr_and_gpt_partitions(dev_desc, download_buffer)) { printf("%s: writing GPT partitions failed\n", __func__); - fastboot_fail( - "writing GPT partitions failed"); + fastboot_fail("writing GPT partitions failed"); return; } printf("........ success\n"); fastboot_okay(""); return; - } else if (part_get_info_efi_by_name_or_alias(dev_desc, cmd, &info)) { + } +#endif + +#ifdef CONFIG_DOS_PARTITION + if (strcmp(cmd, CONFIG_FASTBOOT_MBR_NAME) == 0) { + printf("%s: updating MBR\n", __func__); + if (is_valid_dos_buf(download_buffer)) { + printf("%s: invalid MBR - refusing to write to flash\n", + __func__); + fastboot_fail("invalid MBR partition"); + return; + } + if (write_mbr_partition(dev_desc, download_buffer)) { + printf("%s: writing MBR partition failed\n", __func__); + fastboot_fail("writing MBR partition failed"); + return; + } + printf("........ success\n"); + fastboot_okay(""); + return; + } +#endif + + if (part_get_info_by_name_or_alias(dev_desc, cmd, &info)) { error("cannot find partition: '%s'\n", cmd); fastboot_fail("cannot find partition"); return; @@ -172,7 +200,7 @@ void fb_mmc_erase(const char *cmd) return; } - ret = part_get_info_efi_by_name_or_alias(dev_desc, cmd, &info); + ret = part_get_info_by_name_or_alias(dev_desc, cmd, &info); if (ret) { error("cannot find partition: '%s'", cmd); fastboot_fail("cannot find partition"); |