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DaVinci DM355: Modifications to DM355 SPI support

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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>
This commit is contained in:
Sandeep Paulraj 2010-02-01 09:51:15 -05:00 committed by Kevin Hilman
parent 8e2a0013c2
commit 15e865859a
1 changed files with 28 additions and 11 deletions
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39
arch/arm/mach-davinci/dm355.c
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@ -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,