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    Subject[PATCH 09/10] MTD/GPMI : add a new field `gpmi_version`
    Date
    add this field to store the GPMI verison.

    Signed-off-by: Huang Shijie <b32955@freescale.com>
    ---
    drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 3 +++
    drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 4 ++++
    drivers/mtd/nand/gpmi-nand/gpmi-regs.h | 2 ++
    3 files changed, 9 insertions(+), 0 deletions(-)

    diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
    index 7f68042..5b73ae5 100644
    --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
    +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
    @@ -133,6 +133,9 @@ int gpmi_init(struct gpmi_nand_data *this)
    if (ret)
    goto err_out;

    + /* Read out the GPMI version */
    + this->gpmi_version = readl(r->gpmi_regs + HW_GPMI_VERSION);
    +
    /* Choose NAND mode. */
    writel(BM_GPMI_CTRL1_GPMI_MODE, r->gpmi_regs + HW_GPMI_CTRL1_CLR);

    diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
    index 1c7fdbb..5c277e3 100644
    --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
    +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
    @@ -132,6 +132,10 @@ struct gpmi_nand_data {
    /* Flash Hardware */
    struct nand_timing timing;

    + /* GPMI hardware version */
    +#define GPMI_VERSION_0501 (0x05010000)
    + u32 gpmi_version;
    +
    /* BCH */
    struct bch_geometry bch_geometry;
    struct completion bch_done;
    diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-regs.h b/drivers/mtd/nand/gpmi-nand/gpmi-regs.h
    index 8343124..f005b24 100644
    --- a/drivers/mtd/nand/gpmi-nand/gpmi-regs.h
    +++ b/drivers/mtd/nand/gpmi-nand/gpmi-regs.h
    @@ -169,4 +169,6 @@
    #define HW_GPMI_DEBUG 0x000000c0
    #define MX23_BP_GPMI_DEBUG_READY0 28
    #define MX23_BM_GPMI_DEBUG_READY0 (1 << MX23_BP_GPMI_DEBUG_READY0)
    +
    +#define HW_GPMI_VERSION 0x000000d0
    #endif
    --
    1.7.0.4



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