[PATCH 1/5] ARM: am335x-bone: Add support for 16-bit NAND cape
Ezequiel Garcia
ezequiel.garcia at free-electrons.com
Thu Oct 24 15:12:13 PDT 2013
From: Pekon Gupta <pekon at 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 at ti.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia at 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 --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 at 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 at 0 {
+ label = "SPL1";
+ reg = <0x00000000 0x000020000>;
+ };
+ partition at 1 {
+ label = "SPL2";
+ reg = <0x00020000 0x00020000>;
+ };
+ partition at 2 {
+ label = "SPL3";
+ reg = <0x00040000 0x00020000>;
+ };
+ partition at 3 {
+ label = "SPL4";
+ reg = <0x00060000 0x00020000>;
+ };
+ partition at 4 {
+ label = "U-boot";
+ reg = <0x00080000 0x001e0000>;
+ };
+ partition at 5 {
+ label = "environment";
+ reg = <0x00260000 0x00020000>;
+ };
+ partition at 6 {
+ label = "Kernel";
+ reg = <0x00280000 0x00500000>;
+ };
+ partition at 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 at 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 at 0 {
+ label = "SPL1";
+ reg = <0x00000000 0x000020000>;
+ };
+ partition at 1 {
+ label = "SPL2";
+ reg = <0x00020000 0x00020000>;
+ };
+ partition at 2 {
+ label = "SPL3";
+ reg = <0x00040000 0x00020000>;
+ };
+ partition at 3 {
+ label = "SPL4";
+ reg = <0x00060000 0x00020000>;
+ };
+ partition at 4 {
+ label = "U-boot";
+ reg = <0x00080000 0x001e0000>;
+ };
+ partition at 5 {
+ label = "environment";
+ reg = <0x00260000 0x00020000>;
+ };
+ partition at 6 {
+ label = "Kernel";
+ reg = <0x00280000 0x00500000>;
+ };
+ partition at 7 {
+ label = "File-System";
+ reg = <0x00780000 0x0F880000>;
+ };
+ };
+};
--
1.8.1.5
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