From 47df8f03f4cae5cec1f42856916a3dd0d0460dc1 Mon Sep 17 00:00:00 2001 From: York Sun Date: Mon, 10 Jan 2011 12:02:57 +0000 Subject: mpc8xxx: Enable ECC on/off control in hwconfig Add fsl_ddr:ecc=on in hwconfig. If ECC is enabled in board configuration file, ECC can be turned on/off by this switch. If this switch is omitted, it is ON by default. Updated hwconfig calls to use local buffer. Syntax is hwconfig=fsl_ddr:ecc=on Signed-off-by: York Sun Signed-off-by: Kumar Gala --- arch/powerpc/cpu/mpc8xxx/ddr/options.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/options.c b/arch/powerpc/cpu/mpc8xxx/ddr/options.c index 0e7097babb..55dff43947 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/options.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/options.c @@ -98,10 +98,13 @@ unsigned int populate_memctl_options(int all_DIMMs_registered, /* Operational Mode Paramters */ /* Pick ECC modes */ -#ifdef CONFIG_DDR_ECC - popts->ECC_mode = 1; /* 0 = disabled, 1 = enabled */ -#else popts->ECC_mode = 0; /* 0 = disabled, 1 = enabled */ +#ifdef CONFIG_DDR_ECC + if (hwconfig_sub_f("fsl_ddr", "ecc", buf)) { + if (hwconfig_subarg_cmp_f("fsl_ddr", "ecc", "on", buf)) + popts->ECC_mode = 1; + } else + popts->ECC_mode = 1; #endif popts->ECC_init_using_memctl = 1; /* 0 = use DMA, 1 = use memctl */ -- cgit