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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>

SVN-Revision: 41938
lede-17.01
John Crispin 2014-08-01 20:51:14 +00:00
parent 9efd7ebd34
commit 7d9bac5247
2 changed files with 37 additions and 0 deletions
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6
target/linux/ramips/dts/rt5350.dtsi
View File

@ -230,6 +230,12 @@
ralink,function = "uartf"; ralink,function = "uartf";
}; };
}; };
spi_cs1: spi1 {
spi1 {
ralink,group = "spi_cs1";
ralink,function = "spi_cs1";
};
};
}; };
rstctrl: rstctrl { rstctrl: rstctrl {

31
target/linux/ramips/patches-3.10/0221-pinmux-rt5350-spi_cs1.patch Normal file
View File

@ -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 }
};