ARM: u8540: Add Pinctrl Device Tree settings for uart0, uart2
This patch adds pinctrl device tree settings for uart0 and uart2
for ccu8540 board.
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/boot/dts/ccu8540-pinctrl.dtsi b/arch/arm/boot/dts/ccu8540-pinctrl.dtsi
new file mode 100644
index 0000000..644b189
--- /dev/null
+++ b/arch/arm/boot/dts/ccu8540-pinctrl.dtsi
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2012 ST-Ericsson
+ *
+ * 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
+ */
+#include "ste-nomadik-pinctrl.dtsi"
+
+/ {
+ soc {
+ pinctrl {
+ uart0 {
+ uart0_default_mux: uart0_mux {
+ default_mux {
+ ste,function = "u0";
+ ste,pins = "u0_a_1";
+ };
+ };
+
+ uart0_default_mode: uart0_default {
+ default_cfg1 {
+ ste,pins = "GPIO0", "GPIO2";
+ ste,config = <&in_pu>;
+ };
+
+ default_cfg2 {
+ ste,pins = "GPIO1", "GPIO3";
+ ste,config = <&out_hi>;
+ };
+ };
+
+ uart0_sleep_mode: uart0_sleep {
+ sleep_cfg1 {
+ ste,pins = "GPIO0", "GPIO2";
+ ste,config = <&slpm_in_pu>;
+ };
+
+ sleep_cfg2 {
+ ste,pins = "GPIO1", "GPIO3";
+ ste,config = <&slpm_out_hi>;
+ };
+ };
+ };
+
+ uart2 {
+ uart2_default_mode: uart2_default {
+ default_mux {
+ ste,function = "u2";
+ ste,pins = "u2txrx_a_1";
+ };
+
+ default_cfg1 {
+ ste,pins = "GPIO120";
+ ste,config = <&in_pu>;
+ };
+
+ default_cfg2 {
+ ste,pins = "GPIO121";
+ ste,config = <&out_hi>;
+ };
+ };
+
+ uart2_sleep_mode: uart2_sleep {
+ sleep_cfg1 {
+ ste,pins = "GPIO120";
+ ste,config = <&slpm_in_pu>;
+ };
+
+ sleep_cfg2 {
+ ste,pins = "GPIO121";
+ ste,config = <&slpm_out_hi>;
+ };
+ };
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/ccu8540.dts b/arch/arm/boot/dts/ccu8540.dts
index 48ff034..3065fe4 100644
--- a/arch/arm/boot/dts/ccu8540.dts
+++ b/arch/arm/boot/dts/ccu8540.dts
@@ -11,6 +11,7 @@
/dts-v1/;
#include "dbx5x0.dtsi"
+#include "ccu8540-pinctrl.dtsi"
/ {
model = "ST-Ericsson U8540 platform with Device Tree";
@@ -21,12 +22,19 @@
};
soc {
+ pinctrl {
+ compatible = "stericsson,db8540-pinctrl";
+ };
+
prcmu@80157000 {
reg = <0x80157000 0x2000>, <0x801b0000 0x8000>, <0x801b8000 0x3000>;
reg-names = "prcmu", "prcmu-tcpm", "prcmu-tcdm";
};
uart@80120000 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&uart0_default_mux>, <&uart0_default_mode>;
+ pinctrl-1 = <&uart0_sleep_mode>;
status = "okay";
};
@@ -35,6 +43,9 @@
};
uart@80007000 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&uart2_default_mode>;
+ pinctrl-1 = <&uart2_sleep_mode>;
status = "okay";
};
};
diff --git a/arch/arm/boot/dts/ste-nomadik-pinctrl.dtsi b/arch/arm/boot/dts/ste-nomadik-pinctrl.dtsi
new file mode 100644
index 0000000..efddee9
--- /dev/null
+++ b/arch/arm/boot/dts/ste-nomadik-pinctrl.dtsi
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2012 ST-Ericsson
+ *
+ * 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
+ */
+#include <dt-bindings/pinctrl/nomadik.h>
+
+/ {
+ in_nopull: in_nopull {
+ ste,input = <INPUT_NOPULL>;
+ };
+
+ in_pu: input_pull_up {
+ ste,input = <INPUT_PULLUP>;
+ };
+
+ in_pd: input_pull_down {
+ ste,input = <INPUT_PULLDOWN>;
+ };
+
+ out_hi: output_high {
+ ste,output = <OUTPUT_HIGH>;
+ };
+
+ out_lo: output_low {
+ ste,output = <OUTPUT_LOW>;
+ };
+
+ gpio_out_lo: gpio_output_low {
+ ste,gpio = <GPIOMODE_ENABLED>;
+ ste,output = <OUTPUT_LOW>;
+ };
+
+ slpm_in_pu: slpm_in_pu {
+ ste,sleep = <SLPM_ENABLED>;
+ ste,sleep-input = <SLPM_INPUT_PULLUP>;
+ ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+ };
+
+ slpm_in_wkup_pdis: slpm_in_wkup_pdis {
+ ste,sleep = <SLPM_ENABLED>;
+ ste,sleep-input = <SLPM_DIR_INPUT>;
+ ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+ ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+ };
+
+ slpm_out_lo: slpm_out_lo {
+ ste,sleep = <SLPM_ENABLED>;
+ ste,sleep-output = <SLPM_OUTPUT_LOW>;
+ ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+ };
+
+ slpm_out_hi: slpm_out_hi {
+ ste,sleep = <SLPM_ENABLED>;
+ ste,sleep-output = <SLPM_OUTPUT_HIGH>;
+ ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+ };
+
+ slpm_out_hi_wkup_pdis: slpm_out_hi_wkup_pdis {
+ ste,sleep = <SLPM_ENABLED>;
+ ste,sleep-output = <SLPM_OUTPUT_HIGH>;
+ ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+ ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+ };
+
+ slpm_out_wkup_pdis: slpm_out_wkup_pdis {
+ ste,sleep = <SLPM_ENABLED>;
+ ste,sleep-output = <SLPM_DIR_OUTPUT>;
+ ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+ ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+ };
+
+ in_wkup_pdis: in_wkup_pdis {
+ ste,sleep-input = <SLPM_DIR_INPUT>;
+ ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+ ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+ };
+
+ out_hi_wkup_pdis: out_hi_wkup_pdis {
+ ste,sleep-output = <SLPM_OUTPUT_HIGH>;
+ ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+ ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+ };
+
+ out_wkup_pdis: out_wkup_pdis {
+ ste,sleep-output = <SLPM_DIR_OUTPUT>;
+ ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+ ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+ };
+};
diff --git a/include/dt-bindings/pinctrl/nomadik.h b/include/dt-bindings/pinctrl/nomadik.h
new file mode 100644
index 0000000..638fb32
--- /dev/null
+++ b/include/dt-bindings/pinctrl/nomadik.h
@@ -0,0 +1,36 @@
+/*
+ * nomadik.h
+ *
+ * Copyright (C) ST-Ericsson SA 2013
+ * Author: Gabriel Fernandez <gabriel.fernandez@st.com> for ST-Ericsson.
+ * License terms: GNU General Public License (GPL), version 2
+ */
+
+#define INPUT_NOPULL 0
+#define INPUT_PULLUP 1
+#define INPUT_PULLDOWN 2
+
+#define OUTPUT_LOW 0
+#define OUTPUT_HIGH 1
+#define DIR_OUTPUT 2
+
+#define SLPM_DISABLED 0
+#define SLPM_ENABLED 1
+
+#define SLPM_INPUT_NOPULL 0
+#define SLPM_INPUT_PULLUP 1
+#define SLPM_INPUT_PULLDOWN 2
+#define SLPM_DIR_INPUT 3
+
+#define SLPM_OUTPUT_LOW 0
+#define SLPM_OUTPUT_HIGH 1
+#define SLPM_DIR_OUTPUT 2
+
+#define SLPM_WAKEUP_DISABLE 0
+#define SLPM_WAKEUP_ENABLE 1
+
+#define GPIOMODE_DISABLED 0
+#define GPIOMODE_ENABLED 1
+
+#define SLPM_PDIS_DISABLED 0
+#define SLPM_PDIS_ENABLED 1