Patch updated as it was line wrapped in previous submission.
-Rafiuddin.Syed
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>
Acked-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
Acked-by: David Brownell <david-b@xxxxxxxxxxx>
Acked-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
---
arch/arm/mach-omap2/devices.c | 29 +++++++++++++++++++++++------
drivers/spi/omap2_mcspi.c | 10 ++++++----
2 files changed, 29 insertions(+), 10 deletions(-)
Index: kernel-omap4-base/arch/arm/mach-omap2/devices.c
===================================================================
--- kernel-omap4-base.orig/arch/arm/mach-omap2/devices.c
+++ kernel-omap4-base/arch/arm/mach-omap2/devices.c
@@ -257,6 +257,11 @@ static inline void omap_init_sti(void) {
#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 @@ static struct platform_device omap2_mcsp
},
};
-#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 @@ static struct platform_device omap2_mcsp
};
#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,
};
@@ -351,14 +357,25 @@ static struct platform_device omap2_mcsp
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 (cpu_is_omap2430() || cpu_is_omap343x())
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
+ defined(CONFIG_ARCH_OMAP4)
+ if (cpu_is_omap2430() || cpu_is_omap343x() || cpu_is_omap44xx())
platform_device_register(&omap2_mcspi3);
#endif
-#ifdef CONFIG_ARCH_OMAP3
- if (cpu_is_omap343x())
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
+ if (cpu_is_omap343x() || cpu_is_omap44xx())
platform_device_register(&omap2_mcspi4);
#endif
}
Index: kernel-omap4-base/drivers/spi/omap2_mcspi.c
===================================================================
--- kernel-omap4-base.orig/drivers/spi/omap2_mcspi.c
+++ kernel-omap4-base/drivers/spi/omap2_mcspi.c
@@ -907,7 +907,8 @@ static u8 __initdata spi2_txdma_id[] = {
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,
@@ -919,7 +920,7 @@ static u8 __initdata spi3_txdma_id[] = {
};
#endif
-#ifdef CONFIG_ARCH_OMAP3
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
static u8 __initdata spi4_rxdma_id[] = {
OMAP34XX_DMA_SPI4_RX0,
};
@@ -949,14 +950,15 @@ static int __init omap2_mcspi_probe(stru
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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