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>

1 files changed, 22 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos/dma.c b/arch/arm/mach-exynos/dma.c
index 25f3ef2c36e5..17a2f9086310 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);