diff options
Diffstat (limited to 'recipes-bsp/u-boot/u-boot-v2012.04.01/0030-imx-nand-Support-flash-based-BBT.patch')
| -rw-r--r-- | recipes-bsp/u-boot/u-boot-v2012.04.01/0030-imx-nand-Support-flash-based-BBT.patch | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/recipes-bsp/u-boot/u-boot-v2012.04.01/0030-imx-nand-Support-flash-based-BBT.patch b/recipes-bsp/u-boot/u-boot-v2012.04.01/0030-imx-nand-Support-flash-based-BBT.patch new file mode 100644 index 0000000..cea0842 --- /dev/null +++ b/recipes-bsp/u-boot/u-boot-v2012.04.01/0030-imx-nand-Support-flash-based-BBT.patch @@ -0,0 +1,64 @@ +From b288061f27dca116f164b39a24844932d74c3b88 Mon Sep 17 00:00:00 2001 +From: Timo Ketola <timo@exertus.fi> +Date: Wed, 18 Apr 2012 22:55:31 +0000 +Subject: [PATCH 30/56] imx: nand: Support flash based BBT + +Signed-off-by: Timo Ketola <timo@exertus.fi> +Acked-by: Scott Wood <scottwood@freescale.com> +--- + drivers/mtd/nand/mxc_nand.c | 33 +++++++++++++++++++++++++++++++++ + 1 file changed, 33 insertions(+) + +diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c +index 35e89a0..936186f 100644 +--- a/drivers/mtd/nand/mxc_nand.c ++++ b/drivers/mtd/nand/mxc_nand.c +@@ -1302,12 +1302,45 @@ static void mxc_setup_config1(void) + #define mxc_setup_config1() + #endif + ++#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT ++ ++static u8 bbt_pattern[] = {'B', 'b', 't', '0' }; ++static u8 mirror_pattern[] = {'1', 't', 'b', 'B' }; ++ ++static struct nand_bbt_descr bbt_main_descr = { ++ .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | ++ NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP, ++ .offs = 0, ++ .len = 4, ++ .veroffs = 4, ++ .maxblocks = 4, ++ .pattern = bbt_pattern, ++}; ++ ++static struct nand_bbt_descr bbt_mirror_descr = { ++ .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | ++ NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP, ++ .offs = 0, ++ .len = 4, ++ .veroffs = 4, ++ .maxblocks = 4, ++ .pattern = mirror_pattern, ++}; ++ ++#endif ++ + int board_nand_init(struct nand_chip *this) + { + struct mtd_info *mtd; + uint16_t tmp; + int err = 0; + ++#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT ++ this->options |= NAND_USE_FLASH_BBT; ++ this->bbt_td = &bbt_main_descr; ++ this->bbt_md = &bbt_mirror_descr; ++#endif ++ + /* structures must be linked */ + mtd = &host->mtd; + mtd->priv = this; +-- +1.7.10 + |