[PATCH 4/9] powerpc/86xx: Add MMC SPI support for MPC8610HPCD boards

[Anton Vorontsov <avorontsov-hkdhdckH98+B+jHODAdFcQ@public.gmane.org>]

This patch adds spi and mmc-spi-slot nodes, plus a gpio-controller
for PIXIS' sdcsr bank that is used for managing SPI chip-select and
for reading card's states.

Signed-off-by: Anton Vorontsov <avorontsov-hkdhdckH98+B+jHODAdFcQ@public.gmane.org>
---
 arch/powerpc/boot/dts/mpc8610_hpcd.dts     |   32 ++++++++++++++++++++++++++++
 arch/powerpc/platforms/86xx/mpc8610_hpcd.c |    4 +++
 2 files changed, 36 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/boot/dts/mpc8610_hpcd.dts b/arch/powerpc/boot/dts/mpc8610_hpcd.dts
index 1bd3ebe..dbb80f7 100644
--- a/arch/powerpc/boot/dts/mpc8610_hpcd.dts
+++ b/arch/powerpc/boot/dts/mpc8610_hpcd.dts
@@ -100,8 +100,18 @@
 		};
 
 		board-control@3,0 {
+			#address-cells = <1>;
+			#size-cells = <1>;
 			compatible = "fsl,fpga-pixis";
 			reg = <3 0 0x20>;
+			ranges = <0 3 0 0x20>;
+
+			sdcsr_pio: gpio-controller@a {
+				#gpio-cells = <2>;
+				compatible = "fsl,fpga-pixis-gpio-bank";
+				reg = <0xa 1>;
+				gpio-controller;
+			};
 		};
 	};
 
@@ -164,6 +174,28 @@
 			interrupt-parent = <&mpic>;
 		};
 
+		spi@7000 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "fsl,mpc8610-spi", "fsl,spi";
+			reg = <0x7000 0x40>;
+			cell-index = <0>;
+			interrupts = <59 2>;
+			interrupt-parent = <&mpic>;
+			mode = "cpu";
+			gpios = <&sdcsr_pio 7 0>;
+
+			mmc-slot@0 {
+				compatible = "fsl,mpc8610hpcd-mmc-slot",
+					     "mmc-spi-slot";
+				reg = <0>;
+				gpios = <&sdcsr_pio 0 1   /* nCD */
+					 &sdcsr_pio 1 0>; /*  WP */
+				voltage-ranges = <3300 3300>;
+				spi-max-frequency = <50000000>;
+			};
+		};
+
 		display@2c000 {
 			compatible = "fsl,diu";
 			reg = <0x2c000 100>;
diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
index 3f49a6f..ce64572 100644
--- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
+++ b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
@@ -38,6 +38,7 @@
 #include <linux/of_platform.h>
 #include <sysdev/fsl_pci.h>
 #include <sysdev/fsl_soc.h>
+#include <sysdev/simple_gpio.h>
 
 #include "mpc86xx.h"
 
@@ -52,6 +53,9 @@ static struct of_device_id __initdata mpc8610_ids[] = {
 
 static int __init mpc8610_declare_of_platform_devices(void)
 {
+	/* Firstly, register PIXIS GPIOs. */
+	simple_gpiochip_init("fsl,fpga-pixis-gpio-bank");
+
 	/* Without this call, the SSI device driver won't get probed. */
 	of_platform_bus_probe(NULL, mpc8610_ids, NULL);
 
-- 
1.6.2.2


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