diff options
| author | Huang Shijie <b32955@freescale.com> | 2012-09-07 14:37:47 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2012-09-13 16:25:12 +0800 |
| commit | e99dbb43193c818271b456741e5e3a65c93cd9a3 (patch) | |
| tree | 50519a23bac03da561bda1344314bb3388d1c0f0 | |
| parent | 3220313f2cfc41ce3d0796aa755c4544a81a16fd (diff) | |
ENGR00223349-3 gpmi: add a new field for HW_GPMI_CTRL1
add the WRN_DLY_SEL field for HW_GPMI_CTRL1.
This field is used as delay for gpmi write strobe.
Signed-off-by: Huang Shijie <b32955@freescale.com>
| -rw-r--r-- | drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 4 | ||||
| -rw-r--r-- | drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c index a65b6791415f..c13ae42a137d 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c @@ -992,6 +992,7 @@ return_results: hw->use_half_periods = dll_use_half_periods; hw->sample_delay_factor = sample_delay_factor; hw->device_busy_timeout = 0x500; /* default busy timeout value. */ + hw->wrn_dly_sel = 0; /* Return success. */ return 0; @@ -1037,6 +1038,9 @@ void gpmi_begin(struct gpmi_nand_data *this) gpmi_regs + HW_GPMI_TIMING1); /* [3] The following code is to set the HW_GPMI_CTRL1. */ + writel(BM_GPMI_CTRL1_WRN_DLY_SEL, gpmi_regs + HW_GPMI_CTRL1_CLR); + writel(BF_GPMI_CTRL1_WRN_DLY_SEL(hw.wrn_dly_sel), + gpmi_regs + HW_GPMI_CTRL1_SET); /* DLL_ENABLE must be set to 0 when setting RDN_DELAY or HALF_PERIOD. */ writel(BM_GPMI_CTRL1_DLL_ENABLE, 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 cf50a6055511..19b049f64d60 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h @@ -194,6 +194,7 @@ struct gpmi_nand_data { * @use_half_periods: Indicates the clock is running slowly, so the * NFC DLL should use half-periods. * @sample_delay_factor: The sample delay factor. + * @wrn_dly_sel: The delay on the GPMI write strobe. */ struct gpmi_nfc_hardware_timing { /* for GPMI_HW_GPMI_TIMING0 */ @@ -207,6 +208,7 @@ struct gpmi_nfc_hardware_timing { /* for GPMI_HW_GPMI_CTRL1 */ bool use_half_periods; uint8_t sample_delay_factor; + uint8_t wrn_dly_sel; }; /** |