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author | Huang Shijie <b32955@freescale.com> | 2012-09-13 14:57:54 +0800 |
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committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-09-29 15:54:51 +0100 |
commit | ddab3838aa3332ed2c8ea96accbed5218a2a72b7 (patch) | |
tree | 3bc1c64e7c865c7f7d398f51815235ddf9731f57 /drivers/mtd/nand/gpmi-nand/gpmi-nand.h | |
parent | 3e70192c41ac607c63c31ea00be62dd9afb85575 (diff) | |
download | blackbird-op-linux-ddab3838aa3332ed2c8ea96accbed5218a2a72b7.tar.gz blackbird-op-linux-ddab3838aa3332ed2c8ea96accbed5218a2a72b7.zip |
mtd: gpmi: add a new field for HW_GPMI_TIMING1
The gpmi_nfc_compute_hardware_timing{} should contains all the
fields setting for gpmi timing registers. It already contains the fields
for HW_GPMI_TIMING0 and HW_GPMI_CTRL1.
So it is better to add a new field setting for HW_GPMI_TIMING1 in
this data structure. This makes the code more clear in logic.
This patch also changes some comments to make the code more readable.
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-nand.h')
-rw-r--r-- | drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h index 1f6121782330..c814bddaffc4 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h @@ -189,14 +189,24 @@ struct gpmi_nand_data { * @data_setup_in_cycles: The data setup time, in cycles. * @data_hold_in_cycles: The data hold time, in cycles. * @address_setup_in_cycles: The address setup time, in cycles. + * @device_busy_timeout: The timeout waiting for NAND Ready/Busy, + * this value is the number of cycles multiplied + * by 4096. * @use_half_periods: Indicates the clock is running slowly, so the * NFC DLL should use half-periods. * @sample_delay_factor: The sample delay factor. */ struct gpmi_nfc_hardware_timing { + /* for HW_GPMI_TIMING0 */ uint8_t data_setup_in_cycles; uint8_t data_hold_in_cycles; uint8_t address_setup_in_cycles; + + /* for HW_GPMI_TIMING1 */ + uint16_t device_busy_timeout; +#define GPMI_DEFAULT_BUSY_TIMEOUT 0x500 /* default busy timeout value.*/ + + /* for HW_GPMI_CTRL1 */ bool use_half_periods; uint8_t sample_delay_factor; }; |