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>
diff --git a/arch/arm/mach-exynos/dma.c b/arch/arm/mach-exynos/dma.c
index 25f3ef2c..17a2f90 100644
--- a/arch/arm/mach-exynos/dma.c
+++ b/arch/arm/mach-exynos/dma.c
@@ -113,6 +113,25 @@
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 @@
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);