[PATCH] GPMC: add ECC control definitions

[Yegor Yefremov]

Signed-off-by: Yegor Yefremov <yegorsli...@googlemail.com>
---
 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);

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