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| author | Sekhar Nori <nsekhar@ti.com> | 2010-08-09 15:46:40 +0530 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2010-09-24 07:40:27 -0700 |
| commit | 0b3fc7bb88243371a2bd4a4990fb62a0b722efe7 (patch) | |
| tree | 45f6de584f5fca7030f3d4ed338e4df83c86ee3a | |
| parent | 18a8505cc130448c8c0a29a46573b46697bf0e42 (diff) | |
| download | op-kernel-dev-0b3fc7bb88243371a2bd4a4990fb62a0b722efe7.zip op-kernel-dev-0b3fc7bb88243371a2bd4a4990fb62a0b722efe7.tar.gz | |
davinci: dm6467t evm: setup NAND flash timing
Setup NAND flash timing on DM6467T EVM.
Without the timing setup, the NAND flash on DM6467T
RevC EVM reports a number of random bad blocks because
of read errors.
Also, with this, copying a 100M file on RevB EVM takes
~35 sec against 1 minute 30 seconds earlier.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| -rw-r--r-- | arch/arm/mach-davinci/board-dm646x-evm.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c index 4502f34..5a29955 100644 --- a/arch/arm/mach-davinci/board-dm646x-evm.c +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -42,6 +42,7 @@ #include <mach/nand.h> #include <mach/clock.h> #include <mach/cdce949.h> +#include <mach/aemif.h> #include "clock.h" @@ -71,6 +72,16 @@ static struct mtd_partition davinci_nand_partitions[] = { } }; +static struct davinci_aemif_timing dm6467tevm_nandflash_timing = { + .wsetup = 29, + .wstrobe = 24, + .whold = 14, + .rsetup = 19, + .rstrobe = 33, + .rhold = 0, + .ta = 29, +}; + static struct davinci_nand_pdata davinci_nand_data = { .mask_cle = 0x80000, .mask_ale = 0x40000, @@ -763,6 +774,9 @@ static __init void evm_init(void) dm646x_init_mcasp0(&dm646x_evm_snd_data[0]); dm646x_init_mcasp1(&dm646x_evm_snd_data[1]); + if (machine_is_davinci_dm6467tevm()) + davinci_nand_data.timing = &dm6467tevm_nandflash_timing; + platform_device_register(&davinci_nand_device); dm646x_init_edma(dm646x_edma_rsv); |
