From: Ilya Ledvich <i...@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 <grinb...@compulab.co.il>
Signed-off-by: Ilya Ledvich <i...@compulab.co.il>
Signed-off-by: Uri Mashiach <uri.mashi...@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@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@0 {
+ label = "spl";
+ reg = <0x00000000 0x00200000>;
+ };
+ partition@1 {
+ label = "uboot";
+ reg = <0x00200000 0x00100000>;
+ };
+ partition@2 {
+ label = "uboot environment";
+ reg = <0x00300000 0x00100000>;
+ };
+ partition@3 {
+ label = "dtb";
+ reg = <0x00400000 0x00100000>;
+ };
+ partition@4 {
+ label = "splash";
+ reg = <0x00500000 0x00400000>;
+ };
+ partition@5 {
+ label = "linux";
+ reg = <0x00900000 0x00600000>;
+ };
+ partition@6 {
+ label = "rootfs";
+ reg = <0x00F00000 0>;
+ };
+ };
+};
+
+&elm {
+ status = "okay";
+};
+
--
2.6.0
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