diff options
| author | Boojin Kim <boojin.kim@samsung.com> | 2012-02-15 13:15:12 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-03-10 22:51:07 -0800 |
| commit | 9ed76e0336988ecc9e7234e0bd49be4fd98f6c35 (patch) | |
| tree | 6556d1e1765e7cd4886dc66ba0f2fa50d2332225 /arch/arm/mach-exynos | |
| parent | 44b2cef5ae6da48523fa634230ca66107110a7dd (diff) | |
| download | blackbird-op-linux-9ed76e0336988ecc9e7234e0bd49be4fd98f6c35.tar.gz blackbird-op-linux-9ed76e0336988ecc9e7234e0bd49be4fd98f6c35.zip | |
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')
| -rw-r--r-- | arch/arm/mach-exynos/clock-exynos4.c | 8 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/dma.c | 22 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/include/mach/irqs.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/include/mach/map.h | 3 |
4 files changed, 34 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 |
