ARM: ux500: move UART pin control to the device tree
This moves the static, device-tied pin control configuration
out of the board file board-mop500-pins.c and into the device
tree.
We create a new .dtsi-file to be shared between all the
MOP500-related boards, that include all HREF variants and
the Snowball board. Assign pin states for HREF and Snowball
boards alike.
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/boot/dts/ste-href-family-pinctrl.dtsi b/arch/arm/boot/dts/ste-href-family-pinctrl.dtsi
new file mode 100644
index 0000000..d979de2
--- /dev/null
+++ b/arch/arm/boot/dts/ste-href-family-pinctrl.dtsi
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2013 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
+ */
+
+#include "ste-nomadik-pinctrl.dtsi"
+
+/ {
+ soc {
+ pinctrl {
+ /* Settings for all UART default and sleep states */
+ uart0 {
+ uart0_default_mode: uart0_default {
+ default_mux {
+ ste,function = "u0";
+ ste,pins = "u0_a_1";
+ };
+ default_cfg1 {
+ ste,pins = "GPIO0_AJ5", "GPIO2_AH4"; /* CTS+RXD */
+ ste,config = <&in_pu>;
+ };
+
+ default_cfg2 {
+ ste,pins = "GPIO1_AJ3", "GPIO3_AH3"; /* RTS+TXD */
+ ste,config = <&out_hi>;
+ };
+ };
+
+ uart0_sleep_mode: uart0_sleep {
+ sleep_cfg1 {
+ ste,pins = "GPIO0_AJ5", "GPIO2_AH4"; /* CTS+RXD */
+ ste,config = <&slpm_in_wkup_pdis>;
+ };
+
+ sleep_cfg2 {
+ ste,pins = "GPIO1_AJ3"; /* RTS */
+ ste,config = <&slpm_out_hi_wkup_pdis>;
+ };
+
+ sleep_cfg3 {
+ ste,pins = "GPIO3_AH3"; /* TXD */
+ ste,config = <&slpm_out_wkup_pdis>;
+ };
+ };
+ };
+
+ uart1 {
+ uart1_default_mode: uart1_default {
+ default_mux {
+ ste,function = "u1";
+ ste,pins = "u1rxtx_a_1";
+ };
+ default_cfg1 {
+ ste,pins = "GPIO4_AH6"; /* RXD */
+ ste,config = <&in_pu>;
+ };
+
+ default_cfg2 {
+ ste,pins = "GPIO5_AG6"; /* TXD */
+ ste,config = <&out_hi>;
+ };
+ };
+
+ uart1_sleep_mode: uart1_sleep {
+ sleep_cfg1 {
+ ste,pins = "GPIO4_AH6"; /* RXD */
+ ste,config = <&slpm_in_wkup_pdis>;
+ };
+
+ sleep_cfg2 {
+ ste,pins = "GPIO5_AG6"; /* TXD */
+ ste,config = <&slpm_out_wkup_pdis>;
+ };
+ };
+ };
+
+ uart2 {
+ uart2_default_mode: uart2_default {
+ default_mux {
+ ste,function = "u2";
+ ste,pins = "u2rxtx_c_1";
+ };
+ default_cfg1 {
+ ste,pins = "GPIO29_W2"; /* RXD */
+ ste,config = <&in_pu>;
+ };
+
+ default_cfg2 {
+ ste,pins = "GPIO30_W3"; /* TXD */
+ ste,config = <&out_hi>;
+ };
+ };
+
+ uart2_sleep_mode: uart2_sleep {
+ sleep_cfg1 {
+ ste,pins = "GPIO29_W2"; /* RXD */
+ ste,config = <&in_wkup_pdis>;
+ };
+
+ sleep_cfg2 {
+ ste,pins = "GPIO30_W3"; /* TXD */
+ ste,config = <&out_wkup_pdis>;
+ };
+ };
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index aa3f020..914a5f4 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -11,6 +11,7 @@
#include <dt-bindings/interrupt-controller/irq.h>
#include "ste-dbx5x0.dtsi"
+#include "ste-href-family-pinctrl.dtsi"
/ {
memory {
@@ -30,14 +31,23 @@
soc {
uart@80120000 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&uart0_default_mode>;
+ pinctrl-1 = <&uart0_sleep_mode>;
status = "okay";
};
uart@80121000 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&uart1_default_mode>;
+ pinctrl-1 = <&uart1_sleep_mode>;
status = "okay";
};
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-snowball.dts b/arch/arm/boot/dts/ste-snowball.dts
index f0b39f8..16d2886 100644
--- a/arch/arm/boot/dts/ste-snowball.dts
+++ b/arch/arm/boot/dts/ste-snowball.dts
@@ -11,6 +11,7 @@
/dts-v1/;
#include "ste-dbx5x0.dtsi"
+#include "ste-href-family-pinctrl.dtsi"
/ {
model = "Calao Systems Snowball platform with device tree";
@@ -155,14 +156,23 @@
};
uart@80120000 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&uart0_default_mode>;
+ pinctrl-1 = <&uart0_sleep_mode>;
status = "okay";
};
uart@80121000 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&uart1_default_mode>;
+ pinctrl-1 = <&uart1_sleep_mode>;
status = "okay";
};
uart@80007000 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&uart2_default_mode>;
+ pinctrl-1 = <&uart2_sleep_mode>;
status = "okay";
};