ramips: Add support for SPI_CS1 pinmux

This patch adds support for setting SPI_CS1 as Chip Select, Watchdog reset output and GPIO#27.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Backport of r41938

SVN-Revision: 42377

diff --git a/target/linux/ramips/dts/rt5350.dtsi b/target/linux/ramips/dts/rt5350.dtsi
index 0cad608f5caca49a8832f10eafdad16905e9fc9d..8ba20bbdfccaabc09b834c92319ee357cafc3175 100644 (file)
--- a/target/linux/ramips/dts/rt5350.dtsi
+++ b/target/linux/ramips/dts/rt5350.dtsi
@@ -230,6 +230,12 @@
                                ralink,function = "uartf";
                        };
                };
+               spi_cs1: spi1 {
+                       spi1 {
+                               ralink,group = "spi_cs1";
+                               ralink,function = "spi_cs1";
+                       };
+               };
        };
 
        rstctrl: rstctrl {

diff --git a/target/linux/ramips/patches-3.10/0221-pinmux-rt5350-spi_cs1.patch b/target/linux/ramips/patches-3.10/0221-pinmux-rt5350-spi_cs1.patch
new file mode 100644 (file)
index 0000000..bdcf7f0
--- /dev/null
+++ b/target/linux/ramips/patches-3.10/0221-pinmux-rt5350-spi_cs1.patch
@@ -0,0 +1,31 @@
+--- a/arch/mips/include/asm/mach-ralink/rt305x.h
++++ b/arch/mips/include/asm/mach-ralink/rt305x.h
+@@ -145,6 +145,7 @@ static inline int soc_is_rt5350(void)
+ #define RT305X_GPIO_MODE_SDRAM                8
+ #define RT305X_GPIO_MODE_RGMII                9
+ #define RT5350_GPIO_MODE_PHY_LED      14
++#define RT5350_GPIO_MODE_SPI_CS1      21
+ #define RT3352_GPIO_MODE_LNA          18
+ #define RT3352_GPIO_MODE_PA           20
+ 
+--- a/arch/mips/ralink/rt305x.c
++++ b/arch/mips/ralink/rt305x.c
+@@ -38,6 +38,10 @@ static struct rt2880_pmx_func uartlite_f
+ static struct rt2880_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) };
+ static struct rt2880_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) };
+ static struct rt2880_pmx_func rt5350_led_func[] = { FUNC("led", 0, 22, 5) };
++static struct rt2880_pmx_func rt5350_cs1_func[] = {
++      FUNC("spi_cs1", 0, 27, 1),
++      FUNC("wdg_cs1", 1, 27, 1),
++};
+ static struct rt2880_pmx_func sdram_func[] = { FUNC("sdram", 0, 24, 16) };
+ static struct rt2880_pmx_func rt3352_rgmii_func[] = { FUNC("rgmii", 0, 24, 12) };
+ static struct rt2880_pmx_func rgmii_func[] = { FUNC("rgmii", 0, 40, 12) };
+@@ -81,6 +85,7 @@ static struct rt2880_pmx_group rt5350_pi
+       GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1),
+       GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG),
+       GRP("led", rt5350_led_func, 1, RT5350_GPIO_MODE_PHY_LED),
++      GRP("spi_cs1", rt5350_cs1_func, 2, RT5350_GPIO_MODE_SPI_CS1),
+       { 0 }
+ };
+