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ARM: S5PC100: Use generic DMA PL330 driver
authorBoojin Kim <boojin.kim@samsung.com>
Fri, 2 Sep 2011 00:44:38 +0000 (09:44 +0900)
committerVinod Koul <vinod.koul@intel.com>
Wed, 14 Sep 2011 05:40:03 +0000 (11:10 +0530)
This patch makes Samsung S5PC100 to use DMA PL330 driver
on DMADEVICE. The S5PC100 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>
arch/arm/mach-s5pc100/Kconfig patch | blob | history
arch/arm/mach-s5pc100/clock.c patch | blob | history
arch/arm/mach-s5pc100/dma.c patch | blob | history
arch/arm/mach-s5pc100/include/mach/dma.h patch | blob | history

diff --git a/arch/arm/mach-s5pc100/Kconfig b/arch/arm/mach-s5pc100/Kconfig
index e8a33c4b054cca68c90ce759bd2df5e9198bbf70..e538a4c67e9cc72d18924c3c5945e83c53bbbb4a 100644 (file)
--- a/arch/arm/mach-s5pc100/Kconfig
+++ b/arch/arm/mach-s5pc100/Kconfig
@@ -10,7 +10,7 @@ if ARCH_S5PC100
 config CPU_S5PC100
        bool
        select S5P_EXT_INT
-       select S3C_PL330_DMA
+       select SAMSUNG_DMADEV
        help
          Enable S5PC100 CPU support
 
diff --git a/arch/arm/mach-s5pc100/clock.c b/arch/arm/mach-s5pc100/clock.c
index ff5cbb30de5bb5fc200928018fdfc3f9f7b0f58b..6527c05c5fa101ac6b85b2b1506ee60e002692b5 100644 (file)
--- a/arch/arm/mach-s5pc100/clock.c
+++ b/arch/arm/mach-s5pc100/clock.c
@@ -33,6 +33,11 @@ static struct clk s5p_clk_otgphy = {
        .name           = "otg_phy",
 };
 
+static struct clk dummy_apb_pclk = {
+       .name           = "apb_pclk",
+       .id             = -1,
+};
+
 static struct clk *clk_src_mout_href_list[] = {
        [0] = &s5p_clk_27m,
        [1] = &clk_fin_hpll,
@@ -454,13 +459,13 @@ static struct clk init_clocks_off[] = {
                .enable         = s5pc100_d1_0_ctrl,
                .ctrlbit        = (1 << 2),
        }, {
-               .name           = "pdma",
+               .name           = "dma",
                .devname        = "s3c-pl330.1",
                .parent         = &clk_div_d1_bus.clk,
                .enable         = s5pc100_d1_0_ctrl,
                .ctrlbit        = (1 << 1),
        }, {
-               .name           = "pdma",
+               .name           = "dma",
                .devname        = "s3c-pl330.0",
                .parent         = &clk_div_d1_bus.clk,
                .enable         = s5pc100_d1_0_ctrl,
@@ -1276,5 +1281,7 @@ void __init s5pc100_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-s5pc100/dma.c b/arch/arm/mach-s5pc100/dma.c
index bf4cd0fb97c6afe38d01860412775f5fb52590ae..ef803e92d35dca237122f6834c59038a8ba4453f 100644 (file)
--- a/arch/arm/mach-s5pc100/dma.c
+++ b/arch/arm/mach-s5pc100/dma.c
@@ -1,4 +1,8 @@
-/*
+/* linux/arch/arm/mach-s5pc100/dma.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com
+ *
  * Copyright (C) 2010 Samsung Electronics Co. Ltd.
  *     Jaswinder Singh <jassi.brar@samsung.com>
  *
@@ -17,150 +21,245 @@
  * 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 s5pc100_pdma0_resource[] = {
-       [0] = {
-               .start  = S5PC100_PA_PDMA0,
-               .end    = S5PC100_PA_PDMA0 + SZ_4K,
-               .flags = IORESOURCE_MEM,
-       },
-       [1] = {
-               .start  = IRQ_PDMA0,
-               .end    = IRQ_PDMA0,
-               .flags  = IORESOURCE_IRQ,
+struct dma_pl330_peri pdma0_peri[30] = {
+       {
+               .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_UART2_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_UART2_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_UART3_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_UART3_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = DMACH_IRDA,
+       }, {
+               .peri_id = (u8)DMACH_I2S0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_I2S0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S0S_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S1_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_I2S1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S2_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_I2S2_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SPI0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SPI0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SPI1_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SPI1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SPI2_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SPI2_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,
+       }, {
+               .peri_id = (u8)DMACH_EXTERNAL,
+       }, {
+               .peri_id = (u8)DMACH_PWM,
+       }, {
+               .peri_id = (u8)DMACH_SPDIF,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_HSI_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_HSI_TX,
+               .rqtype = MEMTODEV,
        },
 };
 
-static struct s3c_pl330_platdata s5pc100_pdma0_pdata = {
-       .peri = {
-               [0] = DMACH_UART0_RX,
-               [1] = DMACH_UART0_TX,
-               [2] = DMACH_UART1_RX,
-               [3] = DMACH_UART1_TX,
-               [4] = DMACH_UART2_RX,
-               [5] = DMACH_UART2_TX,
-               [6] = DMACH_UART3_RX,
-               [7] = DMACH_UART3_TX,
-               [8] = DMACH_IRDA,
-               [9] = DMACH_I2S0_RX,
-               [10] = DMACH_I2S0_TX,
-               [11] = DMACH_I2S0S_TX,
-               [12] = DMACH_I2S1_RX,
-               [13] = DMACH_I2S1_TX,
-               [14] = DMACH_I2S2_RX,
-               [15] = DMACH_I2S2_TX,
-               [16] = DMACH_SPI0_RX,
-               [17] = DMACH_SPI0_TX,
-               [18] = DMACH_SPI1_RX,
-               [19] = DMACH_SPI1_TX,
-               [20] = DMACH_SPI2_RX,
-               [21] = DMACH_SPI2_TX,
-               [22] = DMACH_AC97_MICIN,
-               [23] = DMACH_AC97_PCMIN,
-               [24] = DMACH_AC97_PCMOUT,
-               [25] = DMACH_EXTERNAL,
-               [26] = DMACH_PWM,
-               [27] = DMACH_SPDIF,
-               [28] = DMACH_HSI_RX,
-               [29] = DMACH_HSI_TX,
-               [30] = DMACH_MAX,
-               [31] = DMACH_MAX,
-       },
+struct dma_pl330_platdata s5pc100_pdma0_pdata = {
+       .nr_valid_peri = ARRAY_SIZE(pdma0_peri),
+       .peri = pdma0_peri,
 };
 
-static struct platform_device s5pc100_device_pdma0 = {
-       .name           = "s3c-pl330",
-       .id             = 0,
-       .num_resources  = ARRAY_SIZE(s5pc100_pdma0_resource),
-       .resource       = s5pc100_pdma0_resource,
-       .dev            = {
+struct amba_device s5pc100_device_pdma0 = {
+       .dev = {
+               .init_name = "dma-pl330.0",
                .dma_mask = &dma_dmamask,
                .coherent_dma_mask = DMA_BIT_MASK(32),
                .platform_data = &s5pc100_pdma0_pdata,
        },
-};
-
-static struct resource s5pc100_pdma1_resource[] = {
-       [0] = {
-               .start  = S5PC100_PA_PDMA1,
-               .end    = S5PC100_PA_PDMA1 + SZ_4K,
+       .res = {
+               .start = S5PC100_PA_PDMA0,
+               .end = S5PC100_PA_PDMA0 + SZ_4K,
                .flags = IORESOURCE_MEM,
        },
-       [1] = {
-               .start  = IRQ_PDMA1,
-               .end    = IRQ_PDMA1,
-               .flags  = IORESOURCE_IRQ,
-       },
+       .irq = {IRQ_PDMA0, NO_IRQ},
+       .periphid = 0x00041330,
 };
 
-static struct s3c_pl330_platdata s5pc100_pdma1_pdata = {
-       .peri = {
-               [0] = DMACH_UART0_RX,
-               [1] = DMACH_UART0_TX,
-               [2] = DMACH_UART1_RX,
-               [3] = DMACH_UART1_TX,
-               [4] = DMACH_UART2_RX,
-               [5] = DMACH_UART2_TX,
-               [6] = DMACH_UART3_RX,
-               [7] = DMACH_UART3_TX,
-               [8] = DMACH_IRDA,
-               [9] = DMACH_I2S0_RX,
-               [10] = DMACH_I2S0_TX,
-               [11] = DMACH_I2S0S_TX,
-               [12] = DMACH_I2S1_RX,
-               [13] = DMACH_I2S1_TX,
-               [14] = DMACH_I2S2_RX,
-               [15] = DMACH_I2S2_TX,
-               [16] = DMACH_SPI0_RX,
-               [17] = DMACH_SPI0_TX,
-               [18] = DMACH_SPI1_RX,
-               [19] = DMACH_SPI1_TX,
-               [20] = DMACH_SPI2_RX,
-               [21] = DMACH_SPI2_TX,
-               [22] = DMACH_PCM0_RX,
-               [23] = DMACH_PCM0_TX,
-               [24] = DMACH_PCM1_RX,
-               [25] = DMACH_PCM1_TX,
-               [26] = DMACH_MSM_REQ0,
-               [27] = DMACH_MSM_REQ1,
-               [28] = DMACH_MSM_REQ2,
-               [29] = DMACH_MSM_REQ3,
-               [30] = DMACH_MAX,
-               [31] = DMACH_MAX,
+struct dma_pl330_peri pdma1_peri[30] = {
+       {
+               .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_UART2_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_UART2_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_UART3_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_UART3_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = DMACH_IRDA,
+       }, {
+               .peri_id = (u8)DMACH_I2S0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_I2S0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S0S_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S1_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_I2S1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_I2S2_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_I2S2_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SPI0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SPI0_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SPI1_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SPI1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_SPI2_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_SPI2_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_PCM0_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_PCM1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_PCM1_RX,
+               .rqtype = DEVTOMEM,
+       }, {
+               .peri_id = (u8)DMACH_PCM1_TX,
+               .rqtype = MEMTODEV,
+       }, {
+               .peri_id = (u8)DMACH_MSM_REQ0,
+       }, {
+               .peri_id = (u8)DMACH_MSM_REQ1,
+       }, {
+               .peri_id = (u8)DMACH_MSM_REQ2,
+       }, {
+               .peri_id = (u8)DMACH_MSM_REQ3,
        },
 };
 
-static struct platform_device s5pc100_device_pdma1 = {
-       .name           = "s3c-pl330",
-       .id             = 1,
-       .num_resources  = ARRAY_SIZE(s5pc100_pdma1_resource),
-       .resource       = s5pc100_pdma1_resource,
-       .dev            = {
+struct dma_pl330_platdata s5pc100_pdma1_pdata = {
+       .nr_valid_peri = ARRAY_SIZE(pdma1_peri),
+       .peri = pdma1_peri,
+};
+
+struct amba_device s5pc100_device_pdma1 = {
+       .dev = {
+               .init_name = "dma-pl330.1",
                .dma_mask = &dma_dmamask,
                .coherent_dma_mask = DMA_BIT_MASK(32),
                .platform_data = &s5pc100_pdma1_pdata,
        },
-};
-
-static struct platform_device *s5pc100_dmacs[] __initdata = {
-       &s5pc100_device_pdma0,
-       &s5pc100_device_pdma1,
+       .res = {
+               .start = S5PC100_PA_PDMA1,
+               .end = S5PC100_PA_PDMA1 + SZ_4K,
+               .flags = IORESOURCE_MEM,
+       },
+       .irq = {IRQ_PDMA1, NO_IRQ},
+       .periphid = 0x00041330,
 };
 
 static int __init s5pc100_dma_init(void)
 {
-       platform_add_devices(s5pc100_dmacs, ARRAY_SIZE(s5pc100_dmacs));
+       amba_device_register(&s5pc100_device_pdma0, &iomem_resource);
 
        return 0;
 }
diff --git a/arch/arm/mach-s5pc100/include/mach/dma.h b/arch/arm/mach-s5pc100/include/mach/dma.h
index 1beae2cca6a334ea8166103c02e4bd7a96de788e..201842a3769e5187067d95b70c9d2e14a5ea3acd 100644 (file)
--- a/arch/arm/mach-s5pc100/include/mach/dma.h
+++ b/arch/arm/mach-s5pc100/include/mach/dma.h
@@ -20,7 +20,7 @@
 #ifndef __MACH_DMA_H
 #define __MACH_DMA_H
 
-/* This platform uses the common S3C DMA API driver for PL330 */
+/* This platform uses the common DMA API driver for PL330 */
 #include <plat/dma-pl330.h>
 
 #endif /* __MACH_DMA_H */
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