ARM: EXYNOS4: Use generic DMA PL330 driver

This patch makes Samsung EXYNOS4 to use DMA PL330 driver
on DMADEVICE. The EXYNOS4 uses DMA generic APIs instead of
SAMSUNG specific S3C-PL330 APIs.

Signed-off-by: Boojin Kim <boojin.kim@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig
index 0c77ab9..9f00cf3 100644 (file)
--- a/arch/arm/mach-exynos4/Kconfig
+++ b/arch/arm/mach-exynos4/Kconfig
@@ -11,7 +11,7 @@ if ARCH_EXYNOS4
 
 config CPU_EXYNOS4210
        bool
-       select S3C_PL330_DMA
+       select SAMSUNG_DMADEV
        help
          Enable EXYNOS4210 CPU support
 

diff --git a/arch/arm/mach-exynos4/clock.c b/arch/arm/mach-exynos4/clock.c
index 851dea0..fee2dd8 100644 (file)
--- a/arch/arm/mach-exynos4/clock.c
+++ b/arch/arm/mach-exynos4/clock.c
@@ -43,6 +43,11 @@ static struct clk clk_sclk_usbphy1 = {
        .name           = "sclk_usbphy1",
 };
 
+static struct clk dummy_apb_pclk = {
+       .name           = "apb_pclk",
+       .id             = -1,
+};
+
 static int exynos4_clksrc_mask_top_ctrl(struct clk *clk, int enable)
 {
        return s5p_gatectrl(S5P_CLKSRC_MASK_TOP, clk, enable);
@@ -454,12 +459,12 @@ static struct clk init_clocks_off[] = {
                .enable         = exynos4_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 10),
        }, {
-               .name           = "pdma",
+               .name           = "dma",
                .devname        = "s3c-pl330.0",
                .enable         = exynos4_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 0),
        }, {
-               .name           = "pdma",
+               .name           = "dma",
                .devname        = "s3c-pl330.1",
                .enable         = exynos4_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 1),
@@ -1210,5 +1215,7 @@ void __init exynos4_register_clocks(void)
        s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
        s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 
+       s3c24xx_register_clock(&dummy_apb_pclk);
+
        s3c_pwmclk_init();
 }

diff --git a/arch/arm/mach-exynos4/dma.c b/arch/arm/mach-exynos4/dma.c
index 564bb53..d57d662 100644 (file)
--- a/arch/arm/mach-exynos4/dma.c
+++ b/arch/arm/mach-exynos4/dma.c
@@ -21,151 +21,228 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/pl330.h>
 
+#include <asm/irq.h>
 #include <plat/devs.h>
 #include <plat/irqs.h>
 
 #include <mach/map.h>
 #include <mach/irqs.h>
-
-#include <plat/s3c-pl330-pdata.h>
+#include <mach/dma.h>
 
 static u64 dma_dmamask = DMA_BIT_MASK(32);
 
-static struct resource exynos4_pdma0_resource[] = {
-       [0] = {
-               .start  = EXYNOS4_PA_PDMA0,
-               .end    = EXYNOS4_PA_PDMA0 + SZ_4K,
-               .flags  = IORESOURCE_MEM,
-       },
-       [1] = {
-               .start  = IRQ_PDMA0,
-               .end    = IRQ_PDMA0,
-               .flags  = IORESOURCE_IRQ,
+struct dma_pl330_peri pdma0_peri[28] = {
+       {
+               .peri_id = (u8)DMACH_PCM0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_PCM0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_PCM2_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_PCM2_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_MSM_REQ0,
+       }, {
+               .peri_id = (u8)DMACH_MSM_REQ2,
+       }, {
+               .peri_id = (u8)DMACH_SPI0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SPI0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SPI2_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SPI2_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S0S_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_I2S0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_UART0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_UART0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_UART2_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_UART2_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_UART4_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_UART4_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS2_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS2_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS4_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS4_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_AC97_MICIN,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_AC97_PCMIN,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_AC97_PCMOUT,
+               .rqtype = MEMTODEV,
        },
 };
 
-static struct s3c_pl330_platdata exynos4_pdma0_pdata = {
-       .peri = {
-               [0] = DMACH_PCM0_RX,
-               [1] = DMACH_PCM0_TX,
-               [2] = DMACH_PCM2_RX,
-               [3] = DMACH_PCM2_TX,
-               [4] = DMACH_MSM_REQ0,
-               [5] = DMACH_MSM_REQ2,
-               [6] = DMACH_SPI0_RX,
-               [7] = DMACH_SPI0_TX,
-               [8] = DMACH_SPI2_RX,
-               [9] = DMACH_SPI2_TX,
-               [10] = DMACH_I2S0S_TX,
-               [11] = DMACH_I2S0_RX,
-               [12] = DMACH_I2S0_TX,
-               [13] = DMACH_I2S2_RX,
-               [14] = DMACH_I2S2_TX,
-               [15] = DMACH_UART0_RX,
-               [16] = DMACH_UART0_TX,
-               [17] = DMACH_UART2_RX,
-               [18] = DMACH_UART2_TX,
-               [19] = DMACH_UART4_RX,
-               [20] = DMACH_UART4_TX,
-               [21] = DMACH_SLIMBUS0_RX,
-               [22] = DMACH_SLIMBUS0_TX,
-               [23] = DMACH_SLIMBUS2_RX,
-               [24] = DMACH_SLIMBUS2_TX,
-               [25] = DMACH_SLIMBUS4_RX,
-               [26] = DMACH_SLIMBUS4_TX,
-               [27] = DMACH_AC97_MICIN,
-               [28] = DMACH_AC97_PCMIN,
-               [29] = DMACH_AC97_PCMOUT,
-               [30] = DMACH_MAX,
-               [31] = DMACH_MAX,
-       },
+struct dma_pl330_platdata exynos4_pdma0_pdata = {
+       .nr_valid_peri = ARRAY_SIZE(pdma0_peri),
+       .peri = pdma0_peri,
 };
 
-static struct platform_device exynos4_device_pdma0 = {
-       .name           = "s3c-pl330",
-       .id             = 0,
-       .num_resources  = ARRAY_SIZE(exynos4_pdma0_resource),
-       .resource       = exynos4_pdma0_resource,
-       .dev            = {
+struct amba_device exynos4_device_pdma0 = {
+       .dev = {
+               .init_name = "dma-pl330.0",
                .dma_mask = &dma_dmamask,
                .coherent_dma_mask = DMA_BIT_MASK(32),
                .platform_data = &exynos4_pdma0_pdata,
        },
+       .res = {
+               .start = EXYNOS4_PA_PDMA0,
+               .end = EXYNOS4_PA_PDMA0 + SZ_4K,
+               .flags = IORESOURCE_MEM,
+       },
+       .irq = {IRQ_PDMA0, NO_IRQ},
+       .periphid = 0x00041330,
 };
 
-static struct resource exynos4_pdma1_resource[] = {
-       [0] = {
-               .start  = EXYNOS4_PA_PDMA1,
-               .end    = EXYNOS4_PA_PDMA1 + SZ_4K,
-               .flags  = IORESOURCE_MEM,
-       },
-       [1] = {
-               .start  = IRQ_PDMA1,
-               .end    = IRQ_PDMA1,
-               .flags  = IORESOURCE_IRQ,
+struct dma_pl330_peri pdma1_peri[25] = {
+       {
+               .peri_id = (u8)DMACH_PCM0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_PCM0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_PCM1_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_PCM1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_MSM_REQ1,
+       }, {
+               .peri_id = (u8)DMACH_MSM_REQ3,
+       }, {
+               .peri_id = (u8)DMACH_SPI1_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SPI1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S0S_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_I2S0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S1_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_I2S1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_UART0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_UART0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_UART1_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_UART1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_UART3_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_UART3_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS1_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS3_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS3_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS5_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SLIMBUS5_TX,
+               .rqtype = MEMTODEV,
        },
 };
 
-static struct s3c_pl330_platdata exynos4_pdma1_pdata = {
-       .peri = {
-               [0] = DMACH_PCM0_RX,
-               [1] = DMACH_PCM0_TX,
-               [2] = DMACH_PCM1_RX,
-               [3] = DMACH_PCM1_TX,
-               [4] = DMACH_MSM_REQ1,
-               [5] = DMACH_MSM_REQ3,
-               [6] = DMACH_SPI1_RX,
-               [7] = DMACH_SPI1_TX,
-               [8] = DMACH_I2S0S_TX,
-               [9] = DMACH_I2S0_RX,
-               [10] = DMACH_I2S0_TX,
-               [11] = DMACH_I2S1_RX,
-               [12] = DMACH_I2S1_TX,
-               [13] = DMACH_UART0_RX,
-               [14] = DMACH_UART0_TX,
-               [15] = DMACH_UART1_RX,
-               [16] = DMACH_UART1_TX,
-               [17] = DMACH_UART3_RX,
-               [18] = DMACH_UART3_TX,
-               [19] = DMACH_SLIMBUS1_RX,
-               [20] = DMACH_SLIMBUS1_TX,
-               [21] = DMACH_SLIMBUS3_RX,
-               [22] = DMACH_SLIMBUS3_TX,
-               [23] = DMACH_SLIMBUS5_RX,
-               [24] = DMACH_SLIMBUS5_TX,
-               [25] = DMACH_SLIMBUS0AUX_RX,
-               [26] = DMACH_SLIMBUS0AUX_TX,
-               [27] = DMACH_SPDIF,
-               [28] = DMACH_MAX,
-               [29] = DMACH_MAX,
-               [30] = DMACH_MAX,
-               [31] = DMACH_MAX,
-       },
+struct dma_pl330_platdata exynos4_pdma1_pdata = {
+       .nr_valid_peri = ARRAY_SIZE(pdma1_peri),
+       .peri = pdma1_peri,
 };
 
-static struct platform_device exynos4_device_pdma1 = {
-       .name           = "s3c-pl330",
-       .id             = 1,
-       .num_resources  = ARRAY_SIZE(exynos4_pdma1_resource),
-       .resource       = exynos4_pdma1_resource,
-       .dev            = {
+struct amba_device exynos4_device_pdma1 = {
+       .dev = {
+               .init_name = "dma-pl330.1",
                .dma_mask = &dma_dmamask,
                .coherent_dma_mask = DMA_BIT_MASK(32),
                .platform_data = &exynos4_pdma1_pdata,
        },
-};
-
-static struct platform_device *exynos4_dmacs[] __initdata = {
-       &exynos4_device_pdma0,
-       &exynos4_device_pdma1,
+       .res = {
+               .start = EXYNOS4_PA_PDMA1,
+               .end = EXYNOS4_PA_PDMA1 + SZ_4K,
+               .flags = IORESOURCE_MEM,
+       },
+       .irq = {IRQ_PDMA1, NO_IRQ},
+       .periphid = 0x00041330,
 };
 
 static int __init exynos4_dma_init(void)
 {
-       platform_add_devices(exynos4_dmacs, ARRAY_SIZE(exynos4_dmacs));
+       amba_device_register(&exynos4_device_pdma0, &iomem_resource);
 
        return 0;
 }