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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>
hifive-unleashed-5.1
Gabriel Fernandez 2013-06-12 16:35:34 +02:00 committed by Linus Walleij
parent 49c129519a
commit 3d0899e8da
4 changed files with 223 additions and 0 deletions
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81
arch/arm/boot/dts/ccu8540-pinctrl.dtsi 100644
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@ -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>;
};
};
};
};
};
};

11
arch/arm/boot/dts/ccu8540.dts
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@ -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";
};
};

95
arch/arm/boot/dts/ste-nomadik-pinctrl.dtsi 100644
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@ -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>;
};
};

36
include/dt-bindings/pinctrl/nomadik.h 100644
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@ -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