[PATCH 1/3] omap gpmc : add support of setting CYCLE2CYCLEDELAY and BUSTURNAROUND
Matthieu CASTET
matthieu.castet at parrot.com
Tue Nov 6 11:44:35 EST 2012
Signed-off-by: Matthieu CASTET <matthieu.castet at parrot.com>
---
arch/arm/mach-omap2/gpmc.c | 7 ++++++-
arch/arm/plat-omap/include/plat/gpmc.h | 2 ++
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 8ab1e1b..3957ffc 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -333,8 +333,13 @@ int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t)
if (gpmc_capability & GPMC_HAS_WR_DATA_MUX_BUS)
GPMC_SET_ONE(GPMC_CS_CONFIG6, 16, 19, wr_data_mux_bus);
- if (gpmc_capability & GPMC_HAS_WR_ACCESS)
+ if (gpmc_capability & GPMC_HAS_WR_ACCESS) {
+ /* XXX check on which hardware it is supported */
+ GPMC_SET_ONE(GPMC_CS_CONFIG6, 0, 3, busturnaround);
+ GPMC_SET_ONE(GPMC_CS_CONFIG6, 8, 11, cycle2cycledelay);
+
GPMC_SET_ONE(GPMC_CS_CONFIG6, 24, 28, wr_access);
+ }
/* caller is expected to have initialized CONFIG1 to cover
* at least sync vs async
diff --git a/arch/arm/plat-omap/include/plat/gpmc.h b/arch/arm/plat-omap/include/plat/gpmc.h
index 2e6e259..34ca454 100644
--- a/arch/arm/plat-omap/include/plat/gpmc.h
+++ b/arch/arm/plat-omap/include/plat/gpmc.h
@@ -131,6 +131,8 @@ struct gpmc_timings {
/* The following are only on OMAP3430 */
u16 wr_access; /* WRACCESSTIME */
u16 wr_data_mux_bus; /* WRDATAONADMUXBUS */
+ u16 cycle2cycledelay; /* CYCLE2CYCLEDELAY */
+ u16 busturnaround; /* BUSTURNAROUND */
};
struct gpmc_nand_regs {
--
1.7.10.4
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