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| author | Yegor Yefremov <yegorslists@googlemail.com> | 2012-05-09 08:32:49 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2012-05-10 09:39:47 -0700 |
| commit | 2c65e7440d56b3b285d1c95563b4dcce8e40dea3 (patch) | |
| tree | c213966f2d17b5becc76c8fca1c45db867ef6726 /arch/arm/mach-omap2/gpmc.c | |
| parent | e953e305d571fb21012a3b2a78392ca3e412effe (diff) | |
| download | linux-2c65e7440d56b3b285d1c95563b4dcce8e40dea3.tar.gz linux-2c65e7440d56b3b285d1c95563b4dcce8e40dea3.tar.bz2 linux-2c65e7440d56b3b285d1c95563b4dcce8e40dea3.zip | |
GPMC: add ECC control definitions
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/gpmc.c')
| -rw-r--r-- | arch/arm/mach-omap2/gpmc.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 00d510858e28..212018d4e320 100644 --- 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 @@ -861,8 +874,9 @@ int gpmc_enable_hwecc(int cs, int mode, int dev_width, int ecc_size) 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)); @@ -870,13 +884,15 @@ int gpmc_enable_hwecc(int cs, int mode, int dev_width, int ecc_size) switch (mode) { case GPMC_ECC_READ: - gpmc_write_reg(GPMC_ECC_CONTROL, 0x101); + case GPMC_ECC_WRITE: + 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); - 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_ECCDISABLE); break; default: printk(KERN_INFO "Error: Unrecognized Mode[%d]!\n", mode); |