openwrt-xburst/target/linux/lantiq/patches-2.6.39/420-spi3.patch

From: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Date: Thu, 3 Mar 2011 20:42:26 +0000 (+0100)
Subject: MIPS: lantiq: Add device register helper for SPI controller and devices
X-Git-Url: http://nbd.name/gitweb.cgi?p=lantiq.git;a=commitdiff_plain;h=b35b07062b718ece9b9cb7b23b12d83a087eafb0;hp=653c95b8b9066c9c6ac08bd64d0ceee439e9fd90

MIPS: lantiq: Add device register helper for SPI controller and devices

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
---

--- a/arch/mips/lantiq/xway/devices.c
+++ b/arch/mips/lantiq/xway/devices.c
@@ -21,6 +21,7 @@
 #include <linux/io.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
+#include <linux/spi/spi.h>
 
 #include <asm/bootinfo.h>
 #include <asm/irq.h>
@@ -119,3 +120,41 @@
 		platform_device_register(&ltq_etop);
 	}
 }
+
+static struct resource ltq_spi_resources[] = {
+	{
+		.start  = LTQ_SSC_BASE_ADDR,
+		.end    = LTQ_SSC_BASE_ADDR + LTQ_SSC_SIZE - 1,
+		.flags  = IORESOURCE_MEM,
+	},
+	IRQ_RES(spi_tx, LTQ_SSC_TIR),
+	IRQ_RES(spi_rx, LTQ_SSC_RIR),
+	IRQ_RES(spi_err, LTQ_SSC_EIR),
+};
+
+static struct resource ltq_spi_resources_ar9[] = {
+	{
+		.start  = LTQ_SSC_BASE_ADDR,
+		.end    = LTQ_SSC_BASE_ADDR + LTQ_SSC_SIZE - 1,
+		.flags  = IORESOURCE_MEM,
+	},
+	IRQ_RES(spi_tx, LTQ_SSC_TIR_AR9),
+	IRQ_RES(spi_rx, LTQ_SSC_RIR_AR9),
+	IRQ_RES(spi_err, LTQ_SSC_EIR),
+};
+
+static struct platform_device ltq_spi = {
+	.name		= "ltq-spi",
+	.resource	= ltq_spi_resources,
+	.num_resources	= ARRAY_SIZE(ltq_spi_resources),
+};
+
+void __init ltq_register_spi(struct ltq_spi_platform_data *pdata,
+		struct spi_board_info const *info, unsigned n)
+{
+	if(ltq_is_ar9())
+		ltq_spi.resource = ltq_spi_resources_ar9;
+	spi_register_board_info(info, n);
+	ltq_spi.dev.platform_data = pdata;
+	platform_device_register(&ltq_spi);
+}
--- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h
+++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h
@@ -27,6 +27,8 @@
 
 #define LTQ_SSC_TIR		(INT_NUM_IM0_IRL0 + 15)
 #define LTQ_SSC_RIR		(INT_NUM_IM0_IRL0 + 14)
+#define LTQ_SSC_TIR_AR9		(INT_NUM_IM0_IRL0 + 14)
+#define LTQ_SSC_RIR_AR9		(INT_NUM_IM0_IRL0 + 15)
 #define LTQ_SSC_EIR		(INT_NUM_IM0_IRL0 + 16)
 
 #define LTQ_MEI_DYING_GASP_INT	(INT_NUM_IM1_IRL0 + 21)