From: yegor_sub1@visionsystems.de (Yegor Yefremov) Date: Mon, 23 Jan 2012 13:04:03 +0100 Subject: [PATCH] GPMC: add ECC control definitions Message-ID: <4F1D4CB3.5080803@visionsystems.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Signed-off-by: Yegor Yefremov --- arch/arm/mach-omap2/gpmc.c | 30 +++++++++++++++++++++++++----- 1 file changed, 25 insertions(+), 5 deletions(-) Index: b/arch/arm/mach-omap2/gpmc.c =================================================================== --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -50,6 +50,19 @@ #define GPMC_ECC_SIZE_CONFIG 0x1fc #define GPMC_ECC1_RESULT 0x200 +/* GPMC ECC control settings */ +#define GPMC_ECC_CTRL_ECCCLEAR 0x100 +#define GPMC_ECC_CTRL_ECCDISABLE 0x000 +#define GPMC_ECC_CTRL_ECCREG1 0x001 +#define GPMC_ECC_CTRL_ECCREG2 0x002 +#define GPMC_ECC_CTRL_ECCREG3 0x003 +#define GPMC_ECC_CTRL_ECCREG4 0x004 +#define GPMC_ECC_CTRL_ECCREG5 0x005 +#define GPMC_ECC_CTRL_ECCREG6 0x006 +#define GPMC_ECC_CTRL_ECCREG7 0x007 +#define GPMC_ECC_CTRL_ECCREG8 0x008 +#define GPMC_ECC_CTRL_ECCREG9 0x009 + #define GPMC_CS0_OFFSET 0x60 #define GPMC_CS_SIZE 0x30 @@ -855,8 +868,9 @@ gpmc_ecc_used = cs; /* clear ecc and enable bits */ - val = ((0x00000001<<8) | 0x00000001); - gpmc_write_reg(GPMC_ECC_CONTROL, val); + gpmc_write_reg(GPMC_ECC_CONTROL, + GPMC_ECC_CTRL_ECCCLEAR | + GPMC_ECC_CTRL_ECCREG1); /* program ecc and result sizes */ val = ((((ecc_size >> 1) - 1) << 22) | (0x0000000F)); @@ -864,13 +878,19 @@ switch (mode) { case GPMC_ECC_READ: - gpmc_write_reg(GPMC_ECC_CONTROL, 0x101); + gpmc_write_reg(GPMC_ECC_CONTROL, + GPMC_ECC_CTRL_ECCCLEAR | + GPMC_ECC_CTRL_ECCREG1); break; case GPMC_ECC_READSYN: - gpmc_write_reg(GPMC_ECC_CONTROL, 0x100); + gpmc_write_reg(GPMC_ECC_CONTROL, + GPMC_ECC_CTRL_ECCCLEAR | + GPMC_ECC_CTRL_ECCDISABLE); break; case GPMC_ECC_WRITE: - gpmc_write_reg(GPMC_ECC_CONTROL, 0x101); + gpmc_write_reg(GPMC_ECC_CONTROL, + GPMC_ECC_CTRL_ECCCLEAR | + GPMC_ECC_CTRL_ECCREG1); break; default: printk(KERN_INFO "Error: Unrecognized Mode[%d]!\n", mode);