From 8d8a4e727481a58495f8c3b9dfd2e92650d85e10 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 4 Sep 2009 15:08:26 +0000
Subject: add GPIO configuration feature

SVN-Revision: 17512
---
 .../files/arch/mips/ralink/rt288x/mach-rt-n15.c    |  6 ++++
 .../ramips/files/arch/mips/ralink/rt288x/rt288x.c  | 35 +++++++++++++++++++++-
 2 files changed, 40 insertions(+), 1 deletion(-)

(limited to 'target/linux/ramips/files/arch/mips/ralink/rt288x')

diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/mach-rt-n15.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/mach-rt-n15.c
index be5c815cb5..26f08845ba 100644
--- a/target/linux/ramips/files/arch/mips/ralink/rt288x/mach-rt-n15.c
+++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/mach-rt-n15.c
@@ -18,10 +18,14 @@
 #include <asm/mips_machine.h>
 #include <asm/mach-ralink/machine.h>
 #include <asm/mach-ralink/dev_gpio_leds.h>
+#include <asm/mach-ralink/rt288x.h>
+#include <asm/mach-ralink/rt288x_regs.h>
 
 #include "devices.h"
 
 #define RT_N15_GPIO_LED_POWER		11
+#define RT_N15_GPIO_BUTTON_WPS		0
+#define RT_N15_GPIO_BUTTON_RESET	12
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition rt_n15_partitions[] = {
@@ -73,6 +77,8 @@ static struct gpio_led rt_n15_leds_gpio[] __initdata = {
 
 static void __init rt_n15_init(void)
 {
+	rt288x_gpio_init(RT2880_GPIO_MODE_UART0);
+
 	rt288x_register_flash(0, &rt_n15_flash_data);
 
 	ramips_register_gpio_leds(-1, ARRAY_SIZE(rt_n15_leds_gpio),
diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c
index e7c3787e1b..49a301a1e1 100644
--- a/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c
+++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c
@@ -1,7 +1,7 @@
 /*
  * Ralink RT288x SoC specific setup
  *
- * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
  * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  * Parts of this file are based on Ralink's 2.6.21 BSP
@@ -14,6 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/gpio.h>
 
 #include <asm/mach-ralink/common.h>
 #include <asm/mach-ralink/rt288x.h>
@@ -73,3 +74,35 @@ void __init rt288x_detect_sys_freq(void)
 	rt288x_sys_freq = rt288x_cpu_freq / 2;
 }
 
+static void rt288x_gpio_reserve(int first, int last)
+{
+	for (; first <= last; first++)
+		gpio_request(first, "reserved");
+}
+
+void __init rt288x_gpio_init(u32 mode)
+{
+	rt288x_sysc_wr(mode, SYSC_REG_GPIO_MODE);
+
+	ramips_gpio_init();
+	if ((mode & RT2880_GPIO_MODE_I2C) == 0)
+		rt288x_gpio_reserve(1, 2);
+
+	if ((mode & RT2880_GPIO_MODE_SPI) == 0)
+		rt288x_gpio_reserve(3, 6);
+
+	if ((mode & RT2880_GPIO_MODE_UART0) == 0)
+		rt288x_gpio_reserve(7, 14);
+
+	if ((mode & RT2880_GPIO_MODE_JTAG) == 0)
+		rt288x_gpio_reserve(17, 21);
+
+	if ((mode & RT2880_GPIO_MODE_MDIO) == 0)
+		rt288x_gpio_reserve(22, 23);
+
+	if ((mode & RT2880_GPIO_MODE_SDRAM) == 0)
+		rt288x_gpio_reserve(24, 39);
+
+	if ((mode & RT2880_GPIO_MODE_PCI) == 0)
+		rt288x_gpio_reserve(40, 71);
+}
-- 
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