diff options
| author | Huang Shijie | 2012-09-13 08:57:56 +0200 |
|---|---|---|
| committer | David Woodhouse | 2012-09-29 16:55:18 +0200 |
| commit | d37e02d8f3a892b57738f1c1431779d5939214d1 (patch) | |
| tree | fde851a10fb36607c90a9abd992d3b18cb7a2e8a /drivers/mtd/nand/gpmi-nand/gpmi-lib.c | |
| parent | mtd: gpmi: do not get the clock frequency in gpmi_begin() (diff) | |
| download | kernel-qcow2-linux-d37e02d8f3a892b57738f1c1431779d5939214d1.tar.gz kernel-qcow2-linux-d37e02d8f3a892b57738f1c1431779d5939214d1.tar.xz kernel-qcow2-linux-d37e02d8f3a892b57738f1c1431779d5939214d1.zip | |
mtd: 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>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/nand/gpmi-nand/gpmi-lib.c')
| -rw-r--r-- | drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 6 |
1 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 41e905dfc399..2d1f77c0527e 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c @@ -731,6 +731,7 @@ return_results: hw->use_half_periods = dll_use_half_periods; hw->sample_delay_factor = sample_delay_factor; hw->device_busy_timeout = GPMI_DEFAULT_BUSY_TIMEOUT; + hw->wrn_dly_sel = BV_GPMI_CTRL1_WRN_DLY_SEL_4_TO_8NS; /* Return success. */ return 0; @@ -769,6 +770,11 @@ void gpmi_begin(struct gpmi_nand_data *this) /* [3] The following code is to set the HW_GPMI_CTRL1. */ + /* Set the WRN_DLY_SEL */ + 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); |