From ec9382726b6c58494210d0c361b33a0617a39316 Mon Sep 17 00:00:00 2001 From: Holger Freyther Date: Wed, 19 Nov 2008 17:10:51 +0000 Subject: [PATCH 17/69] gta02: Disable hardware ECC unless we get instructed to enable it Early verions off uboot used for the gta02 flashed the nand with ecc information incompatible to s3c2440 hardware ecc. Disable hardware error correction by default, unless the bootloader explicitly enables it. Signed-off-by: Lars-Peter Clausen --- arch/arm/mach-s3c2440/mach-gta02.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c index d9a26f6..3d6f546 100644 --- a/arch/arm/mach-s3c2440/mach-gta02.c +++ b/arch/arm/mach-s3c2440/mach-gta02.c @@ -451,6 +451,7 @@ static struct s3c2410_platform_nand __initdata gta02_nand_info = { .twrph1 = 15, .nr_sets = ARRAY_SIZE(gta02_nand_sets), .sets = gta02_nand_sets, + .software_ecc = 1, }; @@ -674,6 +675,18 @@ static void gta02_poweroff(void) pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1); } +/* + * Allow the bootloader to enable hw ecc + * hardware_ecc=1|0 + */ +static int __init hardware_ecc_setup(char *str) +{ + if (str && str[0] == '1') + gta02_nand_info.software_ecc = 0; + return 1; +} +__setup("hardware_ecc=", hardware_ecc_setup); + static void __init gta02_machine_init(void) { /* Set the panic callback to turn AUX LED on or off. */ -- 1.7.2.5