diff options
| author | Roger Quadros <rogerq@ti.com> | 2016-04-07 13:25:38 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2016-04-13 00:32:02 +0300 |
| commit | 99a4101182d6107af869fb6d41cb375c717c66ad (patch) | |
| tree | 5a6a3f197866acec96ba4b0ba46e9bfc6b69620c | |
| parent | a23fc15584871ad5a5b6621768a2b17b645ff22d (diff) | |
| download | linux-99a4101182d6107af869fb6d41cb375c717c66ad.tar.xz | |
ARM: dts: am437x: Provide NAND ready pin
On these boards NAND ready pin status is avilable over
GPMC_WAIT0 pin.
For NAND we don't use GPMC wait pin monitoring but
get the NAND Ready/Busy# status using GPIOlib.
GPMC driver provides the WAIT0 pin status over GPIOlib.
Read speed increases from 16516 KiB/ to 18813 KiB/s
and write speed was unchanged at 9941 KiB/s.
Measured using mtd_speedtest.ko.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
| -rw-r--r-- | arch/arm/boot/dts/am437x-gp-evm.dts | 1 | ||||
| -rw-r--r-- | arch/arm/boot/dts/am43x-epos-evm.dts | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts index 95ec82a77e67..5bcd3aa025bc 100644 --- a/arch/arm/boot/dts/am437x-gp-evm.dts +++ b/arch/arm/boot/dts/am437x-gp-evm.dts @@ -817,6 +817,7 @@ interrupt-parent = <&gpmc>; interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */ <1 IRQ_TYPE_NONE>; /* termcount */ + rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */ ti,nand-ecc-opt = "bch16"; ti,elm-id = <&elm>; nand-bus-width = <8>; diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts index d7978236ccad..965d548037ef 100644 --- a/arch/arm/boot/dts/am43x-epos-evm.dts +++ b/arch/arm/boot/dts/am43x-epos-evm.dts @@ -568,6 +568,7 @@ interrupt-parent = <&gpmc>; interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */ <1 IRQ_TYPE_NONE>; /* termcount */ + rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */ ti,nand-ecc-opt = "bch16"; ti,elm-id = <&elm>; nand-bus-width = <8>; |