ARM: ux500: move AB8500 GPIOs to device tree

Move the AB8500 muxing and biasing settings over from the board
file to the device tree, include it in the reference designs using
the AB8500: HREF prior to v60, v60plus and Snowball. Set up these
GPIO lines using hogs, just like in the board file.

Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 253 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/ste-href-ab8500.dtsi b/arch/arm/boot/dts/ste-href-ab8500.dtsi
new file mode 100644
index 000000000000..58b00d0f023e
--- /dev/null
+++ b/arch/arm/boot/dts/ste-href-ab8500.dtsi
@@ -0,0 +1,253 @@
+/*
+ * Copyright 2014 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/ {
+	soc {
+		prcmu@80157000 {
+			ab8500 {
+				ab8500-gpio {
+					/* Hog a few default settings */
+					pinctrl-names = "default";
+					pinctrl-0 = <&gpio2_default_mode>,
+						    <&gpio4_default_mode>,
+						    <&gpio10_default_mode>,
+						    <&gpio11_default_mode>,
+						    <&gpio12_default_mode>,
+						    <&gpio13_default_mode>,
+						    <&gpio16_default_mode>,
+						    <&gpio24_default_mode>,
+						    <&gpio25_default_mode>,
+						    <&gpio36_default_mode>,
+						    <&gpio37_default_mode>,
+						    <&gpio38_default_mode>,
+						    <&gpio39_default_mode>,
+						    <&gpio42_default_mode>,
+						    <&gpio26_default_mode>,
+						    <&gpio35_default_mode>;
+
+					/*
+					 * Pins 2, 4, 10, 11, 12, 13, 16, 24, 25, 36, 37, 38, 39 and 42
+					 * are muxed in as GPIO, and configured as INPUT PULL DOWN
+					 */
+					gpio2 {
+						gpio2_default_mode: gpio2_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio2_a_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO2_T9";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio4 {
+						gpio4_default_mode: gpio4_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio4_a_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO4_W2";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio10 {
+						gpio10_default_mode: gpio10_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio10_d_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO10_U17";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio11 {
+						gpio11_default_mode: gpio11_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio11_d_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO11_AA18";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio12 {
+						gpio12_default_mode: gpio12_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio12_d_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO12_U16";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio13 {
+						gpio13_default_mode: gpio13_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio13_d_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO13_W17";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio16 {
+						gpio16_default_mode: gpio16_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio16_a_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO16_F15";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio24 {
+						gpio24_default_mode: gpio24_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio24_a_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO24_T14";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio25 {
+						gpio25_default_mode: gpio25_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio25_a_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO25_R16";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio36 {
+						gpio36_default_mode: gpio36_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio36_a_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO36_A17";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio37 {
+						gpio37_default_mode: gpio37_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio37_a_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO37_E15";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio38 {
+						gpio38_default_mode: gpio38_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio38_a_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO38_C17";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio39 {
+						gpio39_default_mode: gpio39_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio39_a_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO39_E16";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					gpio42 {
+						gpio42_default_mode: gpio42_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio42_a_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO42_U2";
+								input-enable;
+								bias-pull-down;
+							};
+						};
+					};
+					/*
+					 * Pins 26 and 35 muxed in as GPIO, and configured as OUTPUT LOW
+					 */
+					gpio26 {
+						gpio26_default_mode: gpio26_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio26_d_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO26_M16";
+								output-low;
+							};
+						};
+					};
+					gpio35 {
+						gpio35_default_mode: gpio35_default {
+							default_mux {
+								ste,function = "gpio";
+								ste,pins = "gpio35_d_1";
+							};
+							default_cfg {
+								ste,pins = "GPIO35_W15";
+								output-low;
+							};
+						};
+					};
+				};
+			};
+		};
+	};
+};