diff mbox

[1/5] ARM: am335x-bone: Add support for 16-bit NAND cape

Message ID 1382652737-20239-2-git-send-email-ezequiel.garcia@free-electrons.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ezequiel Garcia Oct. 24, 2013, 10:12 p.m. UTC 
From: Pekon Gupta <pekon@ti.com>

Add GPMC timing configurations and NAND partitions for the Beaglebone
"NAND cape". Further information and datasheets of this cape can be found at:
- http://beagleboardtoys.info/index.php?title=BeagleBone_Memory_Expansion
- http://beagleboardtoys.info/index.php?title=BeagleBone_4Gb_16-Bit_NAND_Module

Signed-off-by: Pekon Gupta <pekon@ti.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
---
This patch is not really intended for inclusion. I'm just adding it
to the series for reference and in case anyone wants to test.

 arch/arm/boot/dts/am335x-bone-common.dtsi | 28 ++++++++++++
 arch/arm/boot/dts/am335x-bone.dts         | 75 +++++++++++++++++++++++++++++++
 arch/arm/boot/dts/am335x-boneblack.dts    | 69 ++++++++++++++++++++++++++++
 3 files changed, 172 insertions(+)
diff mbox

Patch

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index 2f66ded..73dcc58 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -107,6 +107,34 @@ 
 				0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
 			>;
 		};
+
+		nandflash_pins_s0: nandflash_pins_s0 {
+			pinctrl-single,pins = <
+				0x0 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
+				0x4 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad1.gpmc_ad1 */
+				0x8 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad2.gpmc_ad2 */
+				0xc (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad3.gpmc_ad3 */
+				0x10 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad4.gpmc_ad4 */
+				0x14 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad5.gpmc_ad5 */
+				0x18 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad6.gpmc_ad6 */
+				0x1c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad7.gpmc_ad7 */
+				0x20 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad8.gpmc_ad8 */
+				0x24 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad9.gpmc_ad9 */
+				0x28 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad10.gpmc_ad10 */
+				0x2c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad11.gpmc_ad11 */
+				0x30 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad12.gpmc_ad12 */
+				0x34 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad13.gpmc_ad13 */
+				0x38 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad14.gpmc_ad14 */
+				0x3c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad15.gpmc_ad15 */
+				0x70 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_wait0.gpmc_wait0 */
+				0x74 (PIN_INPUT_PULLUP | MUX_MODE7)	/* gpmc_wpn.gpio0_30 */
+				0x7c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn0.gpmc_csn0  */
+				0x90 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_advn_ale.gpmc_advn_ale */
+				0x94 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_oen_ren.gpmc_oen_ren */
+				0x98 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_wen.gpmc_wen */
+				0x9c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_be0n_cle.gpmc_be0n_cle */
+			>;
+		};
 	};
 
 	ocp {
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 7993c48..d9172c7 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -9,3 +9,78 @@ 
 
 #include "am33xx.dtsi"
 #include "am335x-bone-common.dtsi"
+
+&elm {
+	status = "okay";
+};
+
+&gpmc {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&nandflash_pins_s0>;
+	ranges = <0 0 0x08000000 0x10000000>;	/* CS0: NAND */
+	nand@0,0 {
+		reg = <0 0 0>; /* CS0, offset 0 */
+		nand-bus-width = <16>;
+		ti,nand-ecc-opt = "bch8";
+		gpmc,device-width = <2>;
+		gpmc,sync-clk-ps = <0>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <740>;
+		gpmc,cs-wr-off-ns = <740>;
+		gpmc,adv-on-ns = <0>;
+		gpmc,adv-rd-off-ns = <740>;
+		gpmc,adv-wr-off-ns = <740>;
+		gpmc,we-on-ns = <90>;
+		gpmc,we-off-ns = <600>;
+		gpmc,oe-on-ns = <150>;
+		gpmc,oe-off-ns = <650>;
+		gpmc,access-ns = <560>;
+		gpmc,rd-cycle-ns = <740>;
+		gpmc,wr-cycle-ns = <740>;
+		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>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ti,elm-id = <&elm>;
+		/* MTD partition table */
+		partition@0 {
+			label = "SPL1";
+			reg = <0x00000000 0x000020000>;
+		};
+		partition@1 {
+			label = "SPL2";
+			reg = <0x00020000 0x00020000>;
+		};
+		partition@2 {
+			label = "SPL3";
+			reg = <0x00040000 0x00020000>;
+		};
+		partition@3 {
+			label = "SPL4";
+			reg = <0x00060000 0x00020000>;
+		};
+		partition@4 {
+			label = "U-boot";
+			reg = <0x00080000 0x001e0000>;
+		};
+		partition@5 {
+			label = "environment";
+			reg = <0x00260000 0x00020000>;
+		};
+		partition@6 {
+			label = "Kernel";
+			reg = <0x00280000 0x00500000>;
+		};
+		partition@7 {
+			label = "File-System";
+			reg = <0x00780000 0x0F880000>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 197cadf..e30f58a 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -15,3 +15,72 @@ 
 	regulator-max-microvolt = <1800000>;
 	regulator-always-on;
 };
+
+&elm {
+	status = "okay";
+};
+
+&gpmc {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&nandflash_pins_s0>;
+	ranges = <0 0 0x08000000 0x10000000>;	/* CS0: NAND */
+	nand@0,0 {
+		reg = <0 0 0>; /* CS0, offset 0 */
+		nand-bus-width = <16>;
+		ti,nand-ecc-opt = "bch8";
+
+		gpmc,device-width = <2>;
+		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-off-ns = <40>;
+		gpmc,oe-off-ns = <54>;
+		gpmc,access-ns = <64>;
+		gpmc,rd-cycle-ns = <82>;
+		gpmc,wr-cycle-ns = <82>;
+		gpmc,wr-access-ns = <40>;
+		gpmc,wr-data-mux-bus-ns = <0>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ti,elm-id = <&elm>;
+		/* MTD partition table */
+		partition@0 {
+			label = "SPL1";
+			reg = <0x00000000 0x000020000>;
+		};
+		partition@1 {
+			label = "SPL2";
+			reg = <0x00020000 0x00020000>;
+		};
+		partition@2 {
+			label = "SPL3";
+			reg = <0x00040000 0x00020000>;
+		};
+		partition@3 {
+			label = "SPL4";
+			reg = <0x00060000 0x00020000>;
+		};
+		partition@4 {
+			label = "U-boot";
+			reg = <0x00080000 0x001e0000>;
+		};
+		partition@5 {
+			label = "environment";
+			reg = <0x00260000 0x00020000>;
+		};
+		partition@6 {
+			label = "Kernel";
+			reg = <0x00280000 0x00500000>;
+		};
+		partition@7 {
+			label = "File-System";
+			reg = <0x00780000 0x0F880000>;
+		};
+	};
+};