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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2013-03-11 16:13:25 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-03-12 11:04:33 +0100 |
| commit | 1512479a6e2c6bf3a2a92db59d27f800a924bf06 (patch) | |
| tree | dbb42a4594467034429b13d7ba848ae06a6362bb /arch/arm/mach-imx/include/mach/imx-nand.h | |
| parent | d8910405cb2b89b285f3bb092f4089ced6b77ae0 (diff) | |
| download | barebox-1512479a6e2c6bf3a2a92db59d27f800a924bf06.tar.gz barebox-1512479a6e2c6bf3a2a92db59d27f800a924bf06.tar.xz | |
ARM: i.MX: Add bbu handler for external NAND boot
The external NAND boot code currently does not handle bad blocks
correctly on 2k NAND flashes. This patch adds a barebox_update
handler for external NAND boot which embeds a Bad block table in
the flashed image. The boot code will skip bad blocks found in
this bad block table then.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-imx/include/mach/imx-nand.h')
| -rw-r--r-- | arch/arm/mach-imx/include/mach/imx-nand.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/include/mach/imx-nand.h b/arch/arm/mach-imx/include/mach/imx-nand.h index 8352d79bcf..9e6416e4d4 100644 --- a/arch/arm/mach-imx/include/mach/imx-nand.h +++ b/arch/arm/mach-imx/include/mach/imx-nand.h @@ -70,4 +70,10 @@ struct imx_nand_platform_data { #define NFC_ID (1 << 4) #define NFC_STATUS (1 << 5) +/* + * For external NAND boot this defines the magic value for the bad block table + * This is found at offset ARM_HEAD_SPARE_OFS in the image on NAND. + */ +#define IMX_NAND_BBT_MAGIC 0xbadb10c0 + #endif /* __ASM_ARCH_NAND_H */ |