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 7869 KiB/ to 8875 KiB/s and write speed was unchanged at 5100 KiB/s. Measured using mtd_speedtest.ko on am335x-evm. Cc: Teresa Remmet <t.remmet@xxxxxxxxx> Cc: Ilya Ledvich <ilya@xxxxxxxxxxxxxx> Cc: Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx> Cc: Rostislav Lisovy <lisovy@xxxxxxxxx> Cc: Enric Balletbo i Serra <eballetbo@xxxxxxxxxxx> Signed-off-by: Roger Quadros <rogerq@xxxxxx> --- arch/arm/boot/dts/am335x-baltos-ir5221.dts | 1 + arch/arm/boot/dts/am335x-chilisom.dtsi | 1 + arch/arm/boot/dts/am335x-cm-t335.dts | 1 + arch/arm/boot/dts/am335x-evm.dts | 1 + arch/arm/boot/dts/am335x-igep0033.dtsi | 1 + arch/arm/boot/dts/am335x-phycore-som.dtsi | 1 + 6 files changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/am335x-baltos-ir5221.dts b/arch/arm/boot/dts/am335x-baltos-ir5221.dts index 6c667fb..17e92e8 100644 --- a/arch/arm/boot/dts/am335x-baltos-ir5221.dts +++ b/arch/arm/boot/dts/am335x-baltos-ir5221.dts @@ -241,6 +241,7 @@ interrupt-parent = <&gpmc>; interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */ <1 IRQ_TYPE_NONE>; /* termcount */ + rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */ nand-bus-width = <8>; ti,nand-ecc-opt = "bch8"; ti,nand-xfer-type = "polled"; diff --git a/arch/arm/boot/dts/am335x-chilisom.dtsi b/arch/arm/boot/dts/am335x-chilisom.dtsi index 95461a2..e48c282 100644 --- a/arch/arm/boot/dts/am335x-chilisom.dtsi +++ b/arch/arm/boot/dts/am335x-chilisom.dtsi @@ -214,6 +214,7 @@ 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 = "bch8"; ti,elm-id = <&elm>; nand-bus-width = <8>; diff --git a/arch/arm/boot/dts/am335x-cm-t335.dts b/arch/arm/boot/dts/am335x-cm-t335.dts index e835644..817b1de 100644 --- a/arch/arm/boot/dts/am335x-cm-t335.dts +++ b/arch/arm/boot/dts/am335x-cm-t335.dts @@ -411,6 +411,7 @@ status = "okay"; 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 = "bch8"; ti,elm-id = <&elm>; nand-bus-width = <8>; diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index 28b9162..516673b 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -524,6 +524,7 @@ 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 = "bch8"; ti,elm-id = <&elm>; nand-bus-width = <8>; diff --git a/arch/arm/boot/dts/am335x-igep0033.dtsi b/arch/arm/boot/dts/am335x-igep0033.dtsi index 6c3a9bf..df63484 100644 --- a/arch/arm/boot/dts/am335x-igep0033.dtsi +++ b/arch/arm/boot/dts/am335x-igep0033.dtsi @@ -135,6 +135,7 @@ interrupt-parent = <&gpmc>; interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */ <1 IRQ_TYPE_NONE>; /* termcount */ + rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */ nand-bus-width = <8>; ti,nand-ecc-opt = "bch8"; gpmc,device-width = <1>; diff --git a/arch/arm/boot/dts/am335x-phycore-som.dtsi b/arch/arm/boot/dts/am335x-phycore-som.dtsi index d4b7f3b..86f7731 100644 --- a/arch/arm/boot/dts/am335x-phycore-som.dtsi +++ b/arch/arm/boot/dts/am335x-phycore-som.dtsi @@ -171,6 +171,7 @@ interrupt-parent = <&gpmc>; interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */ <1 IRQ_TYPE_NONE>; /* termcount */ + rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */ nand-bus-width = <8>; ti,nand-ecc-opt = "bch8"; gpmc,device-nand = "true"; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
