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authorSandeep Paulraj <s-paulraj@ti.com>2010-02-01 09:51:15 -0500
committerKevin Hilman <khilman@deeprootsystems.com>2010-03-01 10:20:23 -0800
commit15e865859a9e65a3f39e95bcb7ee72d0645b9a0e (patch)
tree988266cdd865c94e269ed8b5e962d45d79df303c
parent8e2a0013c2bafd623d27b35364cbf28d4a0dbe55 (diff)
downloadop-kernel-dev-15e865859a9e65a3f39e95bcb7ee72d0645b9a0e.zip
op-kernel-dev-15e865859a9e65a3f39e95bcb7ee72d0645b9a0e.tar.gz
DaVinci DM355: Modifications to DM355 SPI support
This patch does the following 1) Minor change to the SPI clocks making it similar to DM365. 2) Changing the interrupt used by SPI0 3) Adding EDMA resources that can be used by SPI0 4) Adding platform specific data. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
-rw-r--r--arch/arm/mach-davinci/dm355.c39
1 files changed, 28 insertions, 11 deletions
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 2cdd874..36e7213 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -29,6 +29,7 @@
#include <mach/serial.h>
#include <mach/common.h>
#include <mach/asp.h>
+#include <mach/spi.h>
#include "clock.h"
#include "mux.h"
@@ -363,9 +364,9 @@ static struct clk_lookup dm355_clks[] = {
CLK("davinci-asp.1", NULL, &asp1_clk),
CLK("davinci_mmc.0", NULL, &mmcsd0_clk),
CLK("davinci_mmc.1", NULL, &mmcsd1_clk),
- CLK(NULL, "spi0", &spi0_clk),
- CLK(NULL, "spi1", &spi1_clk),
- CLK(NULL, "spi2", &spi2_clk),
+ CLK("spi_davinci.0", NULL, &spi0_clk),
+ CLK("spi_davinci.1", NULL, &spi1_clk),
+ CLK("spi_davinci.2", NULL, &spi2_clk),
CLK(NULL, "gpio", &gpio_clk),
CLK(NULL, "aemif", &aemif_clk),
CLK(NULL, "pwm0", &pwm0_clk),
@@ -392,24 +393,40 @@ static struct resource dm355_spi0_resources[] = {
.flags = IORESOURCE_MEM,
},
{
- .start = IRQ_DM355_SPINT0_1,
+ .start = IRQ_DM355_SPINT0_0,
.flags = IORESOURCE_IRQ,
},
- /* Not yet used, so not included:
- * IORESOURCE_IRQ:
- * - IRQ_DM355_SPINT0_0
- * IORESOURCE_DMA:
- * - DAVINCI_DMA_SPI_SPIX
- * - DAVINCI_DMA_SPI_SPIR
- */
+ {
+ .start = 17,
+ .flags = IORESOURCE_DMA,
+ },
+ {
+ .start = 16,
+ .flags = IORESOURCE_DMA,
+ },
+ {
+ .start = EVENTQ_1,
+ .flags = IORESOURCE_DMA,
+ },
};
+static struct davinci_spi_platform_data dm355_spi0_pdata = {
+ .version = SPI_VERSION_1,
+ .num_chipselect = 2,
+ .clk_internal = 1,
+ .cs_hold = 1,
+ .intr_level = 0,
+ .poll_mode = 1, /* 0 -> interrupt mode 1-> polling mode */
+ .c2tdelay = 0,
+ .t2cdelay = 0,
+};
static struct platform_device dm355_spi0_device = {
.name = "spi_davinci",
.id = 0,
.dev = {
.dma_mask = &dm355_spi0_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &dm355_spi0_pdata,
},
.num_resources = ARRAY_SIZE(dm355_spi0_resources),
.resource = dm355_spi0_resources,
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