[PATCH 3/6] ARM: OMAP2+: dts: cm-t335: add support for NAND flash
Uri Mashiach
uri.mashiach at compulab.co.il
Wed Nov 11 09:32:54 PST 2015
Gentle ping
On 27/10/15 14:14, Uri Mashiach wrote:
> From: Ilya Ledvich <ilya at compulab.co.il>
>
> Add pinmux configuration for NAND specific GPMC pins.
> Add description for GPMC controller. Add child node for NAND flash
> including CM-T335 specific partition table to GPMC node.
> Enable error-location module (ELM).
>
> Acked-by: Igor Grinberg <grinberg at compulab.co.il>
> Signed-off-by: Ilya Ledvich <ilya at compulab.co.il>
> Signed-off-by: Uri Mashiach <uri.mashiach at compulab.co.il>
> ---
> arch/arm/boot/dts/am335x-cm-t335.dts | 106 +++++++++++++++++++++++++++++++++++
> 1 file changed, 106 insertions(+)
>
> diff --git a/arch/arm/boot/dts/am335x-cm-t335.dts b/arch/arm/boot/dts/am335x-cm-t335.dts
> index 39df3d2..9d6117a 100644
> --- a/arch/arm/boot/dts/am335x-cm-t335.dts
> +++ b/arch/arm/boot/dts/am335x-cm-t335.dts
> @@ -61,6 +61,41 @@
> >;
> };
>
> + nandflash_pins: pinmux_nandflash_pins {
> + pinctrl-single,pins = <
> + /* gpmc_ad0.gpmc_ad0 */
> + 0x0 (PIN_INPUT_PULLUP | MUX_MODE0)
> + /* gpmc_ad1.gpmc_ad1 */
> + 0x4 (PIN_INPUT_PULLUP | MUX_MODE0)
> + /* gpmc_ad2.gpmc_ad2 */
> + 0x8 (PIN_INPUT_PULLUP | MUX_MODE0)
> + /* gpmc_ad3.gpmc_ad3 */
> + 0xc (PIN_INPUT_PULLUP | MUX_MODE0)
> + /* gpmc_ad4.gpmc_ad4 */
> + 0x10 (PIN_INPUT_PULLUP | MUX_MODE0)
> + /* gpmc_ad5.gpmc_ad5 */
> + 0x14 (PIN_INPUT_PULLUP | MUX_MODE0)
> + /* gpmc_ad6.gpmc_ad6 */
> + 0x18 (PIN_INPUT_PULLUP | MUX_MODE0)
> + /* gpmc_ad7.gpmc_ad7 */
> + 0x1c (PIN_INPUT_PULLUP | MUX_MODE0)
> + /* gpmc_wait0.gpmc_wait0 */
> + 0x70 (PIN_INPUT_PULLUP | MUX_MODE0)
> + /* gpmc_wpn.gpio0_30 */
> + 0x74 (PIN_INPUT_PULLUP | MUX_MODE7)
> + /* gpmc_csn0.gpmc_csn0 */
> + 0x7c (PIN_OUTPUT | MUX_MODE0)
> + /* gpmc_advn_ale.gpmc_advn_ale */
> + 0x90 (PIN_OUTPUT | MUX_MODE0)
> + /* gpmc_oen_ren.gpmc_oen_ren */
> + 0x94 (PIN_OUTPUT | MUX_MODE0)
> + /* gpmc_wen.gpmc_wen */
> + 0x98 (PIN_OUTPUT | MUX_MODE0)
> + /* gpmc_be0n_cle.gpmc_be0n_cle */
> + 0x9c (PIN_OUTPUT | MUX_MODE0)
> + >;
> + };
> +
> uart0_pins: pinmux_uart0_pins {
> pinctrl-single,pins = <
> /* uart0_rxd.uart0_rxd */
> @@ -97,3 +132,74 @@
> };
> };
>
> +&gpmc {
> + status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&nandflash_pins>;
> + ranges = <0 0 0x08000000 0x10000000>; /* CS0: NAND */
> + nand at 0,0 {
> + reg = <0 0 0>; /* CS0, offset 0 */
> + ti,nand-ecc-opt = "bch8";
> + ti,elm-id = <&elm>;
> + nand-bus-width = <8>;
> + gpmc,device-width = <1>;
> + gpmc,sync-clk-ps = <0>;
> + gpmc,cs-on-ns = <0>;
> + gpmc,cs-rd-off-ns = <44>;
> + gpmc,cs-wr-off-ns = <44>;
> + gpmc,adv-on-ns = <6>;
> + gpmc,adv-rd-off-ns = <34>;
> + gpmc,adv-wr-off-ns = <44>;
> + gpmc,we-on-ns = <0>;
> + gpmc,we-off-ns = <40>;
> + gpmc,oe-on-ns = <0>;
> + gpmc,oe-off-ns = <54>;
> + gpmc,access-ns = <64>;
> + gpmc,rd-cycle-ns = <82>;
> + gpmc,wr-cycle-ns = <82>;
> + gpmc,wait-on-read = "true";
> + gpmc,wait-on-write = "true";
> + gpmc,bus-turnaround-ns = <0>;
> + gpmc,cycle2cycle-delay-ns = <0>;
> + gpmc,clk-activation-ns = <0>;
> + gpmc,wait-monitoring-ns = <0>;
> + gpmc,wr-access-ns = <40>;
> + gpmc,wr-data-mux-bus-ns = <0>;
> + /* MTD partition table */
> + #address-cells = <1>;
> + #size-cells = <1>;
> + partition at 0 {
> + label = "spl";
> + reg = <0x00000000 0x00200000>;
> + };
> + partition at 1 {
> + label = "uboot";
> + reg = <0x00200000 0x00100000>;
> + };
> + partition at 2 {
> + label = "uboot environment";
> + reg = <0x00300000 0x00100000>;
> + };
> + partition at 3 {
> + label = "dtb";
> + reg = <0x00400000 0x00100000>;
> + };
> + partition at 4 {
> + label = "splash";
> + reg = <0x00500000 0x00400000>;
> + };
> + partition at 5 {
> + label = "linux";
> + reg = <0x00900000 0x00600000>;
> + };
> + partition at 6 {
> + label = "rootfs";
> + reg = <0x00F00000 0>;
> + };
> + };
> +};
> +
> +&elm {
> + status = "okay";
> +};
> +
>
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