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authorBoojin Kim <boojin.kim@samsung.com>2012-02-15 13:15:12 +0900
committerKukjin Kim <kgene.kim@samsung.com>2012-03-10 22:51:07 -0800
commit9ed76e0336988ecc9e7234e0bd49be4fd98f6c35 (patch)
tree6556d1e1765e7cd4886dc66ba0f2fa50d2332225 /arch/arm/mach-exynos/dma.c
parent44b2cef5ae6da48523fa634230ca66107110a7dd (diff)
ARM: EXYNOS: Enable MDMA driver
This patch adds MDMA platform data and enables MDMA for DMA memcpy operation for EXYNOS SoCs. Signed-off-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos/dma.c')
-rw-r--r--arch/arm/mach-exynos/dma.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/dma.c b/arch/arm/mach-exynos/dma.c
index 25f3ef2c36e..17a2f908631 100644
--- a/arch/arm/mach-exynos/dma.c
+++ b/arch/arm/mach-exynos/dma.c
@@ -113,6 +113,25 @@ static struct dma_pl330_platdata exynos4_pdma1_pdata = {
static AMBA_AHB_DEVICE(exynos4_pdma1, "dma-pl330.1", 0x00041330,
EXYNOS4_PA_PDMA1, {IRQ_PDMA1}, &exynos4_pdma1_pdata);
+static u8 mdma_peri[] = {
+ DMACH_MTOM_0,
+ DMACH_MTOM_1,
+ DMACH_MTOM_2,
+ DMACH_MTOM_3,
+ DMACH_MTOM_4,
+ DMACH_MTOM_5,
+ DMACH_MTOM_6,
+ DMACH_MTOM_7,
+};
+
+static struct dma_pl330_platdata exynos4_mdma1_pdata = {
+ .nr_valid_peri = ARRAY_SIZE(mdma_peri),
+ .peri_id = mdma_peri,
+};
+
+static AMBA_AHB_DEVICE(exynos4_mdma1, "dma-pl330.2", 0x00041330,
+ EXYNOS4_PA_MDMA1, {IRQ_MDMA1}, &exynos4_mdma1_pdata);
+
static int __init exynos4_dma_init(void)
{
if (of_have_populated_dt())
@@ -126,6 +145,9 @@ static int __init exynos4_dma_init(void)
dma_cap_set(DMA_CYCLIC, exynos4_pdma1_pdata.cap_mask);
amba_device_register(&exynos4_pdma1_device, &iomem_resource);
+ dma_cap_set(DMA_MEMCPY, exynos4_mdma1_pdata.cap_mask);
+ amba_device_register(&exynos4_mdma1_device, &iomem_resource);
+
return 0;
}
arch_initcall(exynos4_dma_init);