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;
+                                                        };
+                                                };
+                                        };
+                                };
+                        };
+                };
+        };
+};