memory: omap-gpmc: Prevent GPMC_STATUS from being accessed via gpmc_regs

GPMC_STATUS register is private to the GPMC module and must not be
accessed directly by NAND driver through the gpmc_regs.

They must use gpmc_omap_get_nand_ops() instead.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index ea9c897..33d69b1 100644 (file)
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -1081,7 +1081,7 @@ void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs)
 {
        int i;
 
-       reg->gpmc_status = gpmc_base + GPMC_STATUS;
+       reg->gpmc_status = NULL;        /* deprecated */
        reg->gpmc_nand_command = gpmc_base + GPMC_CS0_OFFSET +
                                GPMC_CS_NAND_COMMAND + GPMC_CS_SIZE * cs;
        reg->gpmc_nand_address = gpmc_base + GPMC_CS0_OFFSET +

diff --git a/include/linux/platform_data/mtd-nand-omap2.h b/include/linux/platform_data/mtd-nand-omap2.h
index ff27e5a..7f6de53 100644 (file)
--- a/include/linux/platform_data/mtd-nand-omap2.h
+++ b/include/linux/platform_data/mtd-nand-omap2.h
@@ -45,7 +45,6 @@ enum omap_ecc {
 };
 
 struct gpmc_nand_regs {
-       void __iomem    *gpmc_status;
        void __iomem    *gpmc_nand_command;
        void __iomem    *gpmc_nand_address;
        void __iomem    *gpmc_nand_data;
@@ -64,6 +63,8 @@ struct gpmc_nand_regs {
        void __iomem    *gpmc_bch_result4[GPMC_BCH_NUM_REMAINDER];
        void __iomem    *gpmc_bch_result5[GPMC_BCH_NUM_REMAINDER];
        void __iomem    *gpmc_bch_result6[GPMC_BCH_NUM_REMAINDER];
+       /* Deprecated. Do not use */
+       void __iomem    *gpmc_status;
 };
 
 struct omap_nand_platform_data {