This patch adds McSPI support for OMAP4430 SDP platform. All the base addresses
are changed between OMAP1/2/3 and OMAP4.The fields of the resource structures
are filled at runtime to have McSPI support on OMAP4.
Signed-off-by: Syed Rafiuddin <rafiuddin.syed@xxxxxx>
---
arch/arm/mach-omap2/devices.c | 25 +++++++++++++++++++++----
drivers/spi/omap2_mcspi.c | 10 ++++++----
2 files changed, 27 insertions(+), 8 deletions(-)
Index: omap4_dev/arch/arm/mach-omap2/devices.c
===================================================================
--- omap4_dev.orig/arch/arm/mach-omap2/devices.c 2009-06-24 19:22:04.000000000
+0530
+++ omap4_dev/arch/arm/mach-omap2/devices.c 2009-06-25 10:05:39.000000000 +0530
@@ -257,6 +257,11 @@
#define OMAP2_MCSPI3_BASE 0x480b8000
#define OMAP2_MCSPI4_BASE 0x480ba000
+#define OMAP4_MCSPI1_BASE 0x48098100
+#define OMAP4_MCSPI2_BASE 0x4809a100
+#define OMAP4_MCSPI3_BASE 0x480b8100
+#define OMAP4_MCSPI4_BASE 0x480ba100
+
static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
.num_cs = 4,
};
@@ -301,7 +306,8 @@
},
};
-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3)
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
+ defined(CONFIG_ARCH_OMAP4)
static struct omap2_mcspi_platform_config omap2_mcspi3_config = {
.num_cs = 2,
};
@@ -325,7 +331,7 @@
};
#endif
-#ifdef CONFIG_ARCH_OMAP3
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
static struct omap2_mcspi_platform_config omap2_mcspi4_config = {
.num_cs = 1,
};
@@ -351,12 +357,23 @@
static void omap_init_mcspi(void)
{
+ if (cpu_is_omap44xx()) {
+ omap2_mcspi1_resources[0].start = OMAP4_MCSPI1_BASE;
+ omap2_mcspi1_resources[0].end = OMAP4_MCSPI1_BASE + 0xff;
+ omap2_mcspi2_resources[0].start = OMAP4_MCSPI2_BASE;
+ omap2_mcspi2_resources[0].end = OMAP4_MCSPI2_BASE + 0xff;
+ omap2_mcspi3_resources[0].start = OMAP4_MCSPI3_BASE;
+ omap2_mcspi3_resources[0].end = OMAP4_MCSPI3_BASE + 0xff;
+ omap2_mcspi4_resources[0].start = OMAP4_MCSPI4_BASE;
+ omap2_mcspi4_resources[0].end = OMAP4_MCSPI4_BASE + 0xff;
+ }
platform_device_register(&omap2_mcspi1);
platform_device_register(&omap2_mcspi2);
-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3)
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
+ defined(CONFIG_ARCH_OMAP4)
platform_device_register(&omap2_mcspi3);
#endif
-#ifdef CONFIG_ARCH_OMAP3
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
platform_device_register(&omap2_mcspi4);
#endif
}
Index: omap4_dev/drivers/spi/omap2_mcspi.c
===================================================================
--- omap4_dev.orig/drivers/spi/omap2_mcspi.c 2009-06-24 19:22:23.000000000 +0530
+++ omap4_dev/drivers/spi/omap2_mcspi.c 2009-06-24 19:22:46.000000000 +0530
@@ -918,7 +918,8 @@
OMAP24XX_DMA_SPI2_TX1,
};
-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP34XX)
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP34XX) || \
+ defined(CONFIG_ARCH_OMAP4)
static u8 __initdata spi3_rxdma_id[] = {
OMAP24XX_DMA_SPI3_RX0,
OMAP24XX_DMA_SPI3_RX1,
@@ -930,7 +931,7 @@
};
#endif
-#ifdef CONFIG_ARCH_OMAP3
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
static u8 __initdata spi4_rxdma_id[] = {
OMAP34XX_DMA_SPI4_RX0,
};
@@ -960,14 +961,15 @@
txdma_id = spi2_txdma_id;
num_chipselect = 2;
break;
-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3)
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
+ defined(CONFIG_ARCH_OMAP4)
case 3:
rxdma_id = spi3_rxdma_id;
txdma_id = spi3_txdma_id;
num_chipselect = 2;
break;
#endif
-#ifdef CONFIG_ARCH_OMAP3
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
case 4:
rxdma_id = spi4_rxdma_id;
txdma_id = spi4_txdma_id;
--
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