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>

5 files changed, 42 insertions, 1 deletions

diff --git a/arch/arm/mach-exynos/clock-exynos4.c b/arch/arm/mach-exynos/clock-exynos4.c
index 31b59e65463a..db5d1cce3d25 100644
--- a/arch/arm/mach-exynos/clock-exynos4.c
+++ b/arch/arm/mach-exynos/clock-exynos4.c
@@ -784,6 +784,13 @@ static struct clk exynos4_clk_pdma1 = {
         .ctrlbit        = (1 << 1),
 };
 
+static struct clk exynos4_clk_mdma1 = {
+        .name           = "dma",
+        .devname        = "dma-pl330.2",
+        .enable         = exynos4_clk_ip_image_ctrl,
+        .ctrlbit        = ((1 << 8) | (1 << 5) | (1 << 2)),
+};
+
 struct clk *exynos4_clkset_group_list[] = {
         [0] = &clk_ext_xtal_mux,
         [1] = &clk_xusbxti,
@@ -1302,6 +1309,7 @@ static struct clksrc_clk *exynos4_sysclks[] = {
 static struct clk *exynos4_clk_cdev[] = {
         &exynos4_clk_pdma0,
         &exynos4_clk_pdma1,
+        &exynos4_clk_mdma1,
 };
 
 static struct clksrc_clk *exynos4_clksrc_cdev[] = {
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);
diff --git a/arch/arm/mach-exynos/include/mach/irqs.h b/arch/arm/mach-exynos/include/mach/irqs.h
index f77bce04789a..1d401c957835 100644
--- a/arch/arm/mach-exynos/include/mach/irqs.h
+++ b/arch/arm/mach-exynos/include/mach/irqs.h
@@ -43,6 +43,8 @@
 #define IRQ_EINT15              IRQ_SPI(31)
 #define IRQ_EINT16_31           IRQ_SPI(32)
 
+#define IRQ_MDMA0               IRQ_SPI(33)
+#define IRQ_MDMA1               IRQ_SPI(34)
 #define IRQ_PDMA0               IRQ_SPI(35)
 #define IRQ_PDMA1               IRQ_SPI(36)
 #define IRQ_TIMER0_VIC          IRQ_SPI(37)
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index c754a22a2bb3..2ad4e9cfe498 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -67,7 +67,8 @@
 #define EXYNOS4_PA_TWD                  0x10500600
 #define EXYNOS4_PA_L2CC                 0x10502000
 
-#define EXYNOS4_PA_MDMA                 0x10810000
+#define EXYNOS4_PA_MDMA0                0x10810000
+#define EXYNOS4_PA_MDMA1                0x12840000
 #define EXYNOS4_PA_PDMA0                0x12680000
 #define EXYNOS4_PA_PDMA1                0x12690000
 
diff --git a/arch/arm/plat-samsung/include/plat/dma-pl330.h b/arch/arm/plat-samsung/include/plat/dma-pl330.h
index c5eaad529de5..ecf23a830e73 100644
--- a/arch/arm/plat-samsung/include/plat/dma-pl330.h
+++ b/arch/arm/plat-samsung/include/plat/dma-pl330.h
@@ -82,6 +82,14 @@ enum dma_ch {
         DMACH_SLIMBUS4_TX,
         DMACH_SLIMBUS5_RX,
         DMACH_SLIMBUS5_TX,
+        DMACH_MTOM_0,
+        DMACH_MTOM_1,
+        DMACH_MTOM_2,
+        DMACH_MTOM_3,
+        DMACH_MTOM_4,
+        DMACH_MTOM_5,
+        DMACH_MTOM_6,
+        DMACH_MTOM_7,
         /* END Marker, also used to denote a reserved channel */
         DMACH_MAX,
 };