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authorHemant Pedanekar <hemantp@ti.com>2009-07-09 19:43:20 +0530
committerKevin Hilman <khilman@deeprootsystems.com>2009-08-26 10:57:02 +0300
commit1c92a554fcad141f8c73eecdb1cc5ac0527a5c15 (patch)
treefee7c293f5c39e192b7c8fae3357e20029bea139 /arch/arm/mach-davinci
parent6077d265324f13a4b7db30eb70cabed07fd58936 (diff)
davinci: dm646x: Add IDE setup
This patch adds platform data and init function for IDE which could be called from board specific file to register IDE device. Note that for 594MHz device the transfer mode is limited to UDMA4 since ideclk rate is less than 100 MHz, which forces udma_mask in palm_bk3710.c to UDMA4, while for 729MHz device, it is UDMA5. Signed-off-by: Hemant Pedanekar <hemantp@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-davinci')
-rw-r--r--arch/arm/mach-davinci/dm646x.c32
-rw-r--r--arch/arm/mach-davinci/include/mach/dm646x.h3
2 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 50f01e013aa..3516f7699db 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -600,6 +600,32 @@ static struct platform_device dm646x_edma_device = {
.resource = edma_resources,
};
+static struct resource ide_resources[] = {
+ {
+ .start = DM646X_ATA_REG_BASE,
+ .end = DM646X_ATA_REG_BASE + 0x7ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_DM646X_IDE,
+ .end = IRQ_DM646X_IDE,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 ide_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device ide_dev = {
+ .name = "palm_bk3710",
+ .id = -1,
+ .resource = ide_resources,
+ .num_resources = ARRAY_SIZE(ide_resources),
+ .dev = {
+ .dma_mask = &ide_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+};
+
static struct resource dm646x_mcasp0_resources[] = {
{
.name = "mcasp0",
@@ -769,6 +795,12 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
.sram_len = SZ_32K,
};
+void __init dm646x_init_ide()
+{
+ davinci_cfg_reg(DM646X_ATAEN);
+ platform_device_register(&ide_dev);
+}
+
void __init dm646x_init_mcasp0(struct snd_platform_data *pdata)
{
dm646x_mcasp0_device.dev.platform_data = pdata;
diff --git a/arch/arm/mach-davinci/include/mach/dm646x.h b/arch/arm/mach-davinci/include/mach/dm646x.h
index 05854846242..feb1e02cdbd 100644
--- a/arch/arm/mach-davinci/include/mach/dm646x.h
+++ b/arch/arm/mach-davinci/include/mach/dm646x.h
@@ -22,7 +22,10 @@
#define DM646X_EMAC_MDIO_OFFSET (0x4000)
#define DM646X_EMAC_CNTRL_RAM_SIZE (0x2000)
+#define DM646X_ATA_REG_BASE (0x01C66000)
+
void __init dm646x_init(void);
+void __init dm646x_init_ide(void);
void __init dm646x_init_mcasp0(struct snd_platform_data *pdata);
void __init dm646x_init_mcasp1(struct snd_platform_data *pdata);