[PATCH v8 11/16] ARM: S5P64X0: Use generic DMA PL330 driver
Boojin Kim
boojin.kim at samsung.com
Thu Sep 1 20:44:39 EDT 2011
This patch makes Samsung S5P64X0 to use DMA PL330 driver
on DMADEVICE. The S5P64X0 uses DMA generic APIs instead of
SAMSUNG specific S3C-PL330 APIs.
Signed-off-by: Boojin Kim <boojin.kim at samsung.com>
Acked-by: Linus Walleij <linus.walleij at linaro.org>
Acked-by: Vinod Koul <vinod.koul at intel.com>
Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
---
arch/arm/mach-s5p64x0/Kconfig | 4 +-
arch/arm/mach-s5p64x0/clock-s5p6440.c | 9 +-
arch/arm/mach-s5p64x0/clock-s5p6450.c | 9 +-
arch/arm/mach-s5p64x0/dma.c | 273 ++++++++++++++++++++----------
arch/arm/mach-s5p64x0/include/mach/dma.h | 2 +-
5 files changed, 201 insertions(+), 96 deletions(-)
diff --git a/arch/arm/mach-s5p64x0/Kconfig b/arch/arm/mach-s5p64x0/Kconfig
index 65c7518..9527ed2 100644
--- a/arch/arm/mach-s5p64x0/Kconfig
+++ b/arch/arm/mach-s5p64x0/Kconfig
@@ -9,14 +9,14 @@ if ARCH_S5P64X0
config CPU_S5P6440
bool
- select S3C_PL330_DMA
+ select SAMSUNG_DMADEV
select S5P_HRT
help
Enable S5P6440 CPU support
config CPU_S5P6450
bool
- select S3C_PL330_DMA
+ select SAMSUNG_DMADEV
select S5P_HRT
help
Enable S5P6450 CPU support
diff --git a/arch/arm/mach-s5p64x0/clock-s5p6440.c b/arch/arm/mach-s5p64x0/clock-s5p6440.c
index 0e9cd30..c1f548f 100644
--- a/arch/arm/mach-s5p64x0/clock-s5p6440.c
+++ b/arch/arm/mach-s5p64x0/clock-s5p6440.c
@@ -146,7 +146,7 @@ static struct clk init_clocks_off[] = {
.enable = s5p64x0_hclk0_ctrl,
.ctrlbit = (1 << 8),
}, {
- .name = "pdma",
+ .name = "dma",
.parent = &clk_hclk_low.clk,
.enable = s5p64x0_hclk0_ctrl,
.ctrlbit = (1 << 12),
@@ -499,6 +499,11 @@ static struct clksrc_clk *sysclks[] = {
&clk_pclk_low,
};
+static struct clk dummy_apb_pclk = {
+ .name = "apb_pclk",
+ .id = -1,
+};
+
void __init_or_cpufreq s5p6440_setup_clocks(void)
{
struct clk *xtal_clk;
@@ -581,5 +586,7 @@ void __init s5p6440_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-s5p64x0/clock-s5p6450.c b/arch/arm/mach-s5p64x0/clock-s5p6450.c
index d9dc16c..3d9b609 100644
--- a/arch/arm/mach-s5p64x0/clock-s5p6450.c
+++ b/arch/arm/mach-s5p64x0/clock-s5p6450.c
@@ -179,7 +179,7 @@ static struct clk init_clocks_off[] = {
.enable = s5p64x0_hclk0_ctrl,
.ctrlbit = (1 << 3),
}, {
- .name = "pdma",
+ .name = "dma",
.parent = &clk_hclk_low.clk,
.enable = s5p64x0_hclk0_ctrl,
.ctrlbit = (1 << 12),
@@ -553,6 +553,11 @@ static struct clksrc_clk *sysclks[] = {
&clk_sclk_audio0,
};
+static struct clk dummy_apb_pclk = {
+ .name = "apb_pclk",
+ .id = -1,
+};
+
void __init_or_cpufreq s5p6450_setup_clocks(void)
{
struct clk *xtal_clk;
@@ -632,5 +637,7 @@ void __init s5p6450_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-s5p64x0/dma.c b/arch/arm/mach-s5p64x0/dma.c
index d7ad944..aebf3fc 100644
--- a/arch/arm/mach-s5p64x0/dma.c
+++ b/arch/arm/mach-s5p64x0/dma.c
@@ -21,128 +21,219 @@
* 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 <mach/map.h>
#include <mach/irqs.h>
#include <mach/regs-clock.h>
+#include <mach/dma.h>
#include <plat/devs.h>
-#include <plat/s3c-pl330-pdata.h>
+#include <plat/irqs.h>
static u64 dma_dmamask = DMA_BIT_MASK(32);
-static struct resource s5p64x0_pdma_resource[] = {
- [0] = {
- .start = S5P64X0_PA_PDMA,
- .end = S5P64X0_PA_PDMA + SZ_4K,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = IRQ_DMA0,
- .end = IRQ_DMA0,
- .flags = IORESOURCE_IRQ,
+struct dma_pl330_peri s5p6440_pdma_peri[22] = {
+ {
+ .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_MAX,
+ }, {
+ .peri_id = DMACH_MAX,
+ }, {
+ .peri_id = (u8)DMACH_PCM0_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_PCM0_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_I2S0_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_I2S0_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_SPI0_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_SPI0_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_MAX,
+ }, {
+ .peri_id = (u8)DMACH_MAX,
+ }, {
+ .peri_id = (u8)DMACH_MAX,
+ }, {
+ .peri_id = (u8)DMACH_MAX,
+ }, {
+ .peri_id = (u8)DMACH_SPI1_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_SPI1_RX,
+ .rqtype = DEVTOMEM,
},
};
-static struct s3c_pl330_platdata s5p6440_pdma_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_MAX,
- [9] = DMACH_MAX,
- [10] = DMACH_PCM0_TX,
- [11] = DMACH_PCM0_RX,
- [12] = DMACH_I2S0_TX,
- [13] = DMACH_I2S0_RX,
- [14] = DMACH_SPI0_TX,
- [15] = DMACH_SPI0_RX,
- [16] = DMACH_MAX,
- [17] = DMACH_MAX,
- [18] = DMACH_MAX,
- [19] = DMACH_MAX,
- [20] = DMACH_SPI1_TX,
- [21] = DMACH_SPI1_RX,
- [22] = DMACH_MAX,
- [23] = DMACH_MAX,
- [24] = DMACH_MAX,
- [25] = DMACH_MAX,
- [26] = DMACH_MAX,
- [27] = DMACH_MAX,
- [28] = DMACH_MAX,
- [29] = DMACH_PWM,
- [30] = DMACH_MAX,
- [31] = DMACH_MAX,
- },
+struct dma_pl330_platdata s5p6440_pdma_pdata = {
+ .nr_valid_peri = ARRAY_SIZE(s5p6440_pdma_peri),
+ .peri = s5p6440_pdma_peri,
};
-static struct s3c_pl330_platdata s5p6450_pdma_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_UART4_RX,
- [9] = DMACH_UART4_TX,
- [10] = DMACH_PCM0_TX,
- [11] = DMACH_PCM0_RX,
- [12] = DMACH_I2S0_TX,
- [13] = DMACH_I2S0_RX,
- [14] = DMACH_SPI0_TX,
- [15] = DMACH_SPI0_RX,
- [16] = DMACH_PCM1_TX,
- [17] = DMACH_PCM1_RX,
- [18] = DMACH_PCM2_TX,
- [19] = DMACH_PCM2_RX,
- [20] = DMACH_SPI1_TX,
- [21] = DMACH_SPI1_RX,
- [22] = DMACH_USI_TX,
- [23] = DMACH_USI_RX,
- [24] = DMACH_MAX,
- [25] = DMACH_I2S1_TX,
- [26] = DMACH_I2S1_RX,
- [27] = DMACH_I2S2_TX,
- [28] = DMACH_I2S2_RX,
- [29] = DMACH_PWM,
- [30] = DMACH_UART5_RX,
- [31] = DMACH_UART5_TX,
+struct dma_pl330_peri s5p6450_pdma_peri[32] = {
+ {
+ .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 = (u8)DMACH_UART4_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_UART4_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_PCM0_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_PCM0_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_I2S0_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_I2S0_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_SPI0_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_SPI0_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_PCM1_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_PCM1_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_PCM2_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_PCM2_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_SPI1_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_SPI1_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_USI_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_USI_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_MAX,
+ }, {
+ .peri_id = (u8)DMACH_I2S1_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_I2S1_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_I2S2_TX,
+ .rqtype = MEMTODEV,
+ }, {
+ .peri_id = (u8)DMACH_I2S2_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_PWM,
+ }, {
+ .peri_id = (u8)DMACH_UART5_RX,
+ .rqtype = DEVTOMEM,
+ }, {
+ .peri_id = (u8)DMACH_UART5_TX,
+ .rqtype = MEMTODEV,
},
};
-static struct platform_device s5p64x0_device_pdma = {
- .name = "s3c-pl330",
- .id = -1,
- .num_resources = ARRAY_SIZE(s5p64x0_pdma_resource),
- .resource = s5p64x0_pdma_resource,
- .dev = {
+struct dma_pl330_platdata s5p6450_pdma_pdata = {
+ .nr_valid_peri = ARRAY_SIZE(s5p6450_pdma_peri),
+ .peri = s5p6450_pdma_peri,
+};
+
+struct amba_device s5p64x0_device_pdma = {
+ .dev = {
+ .init_name = "dma-pl330",
.dma_mask = &dma_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
+ .res = {
+ .start = S5P64X0_PA_PDMA,
+ .end = S5P64X0_PA_PDMA + SZ_4K,
+ .flags = IORESOURCE_MEM,
+ },
+ .irq = {IRQ_DMA0, NO_IRQ},
+ .periphid = 0x00041330,
};
static int __init s5p64x0_dma_init(void)
{
- unsigned int id;
-
- id = __raw_readl(S5P64X0_SYS_ID) & 0xFF000;
+ unsigned int id = __raw_readl(S5P64X0_SYS_ID) & 0xFF000;
if (id == 0x50000)
s5p64x0_device_pdma.dev.platform_data = &s5p6450_pdma_pdata;
else
s5p64x0_device_pdma.dev.platform_data = &s5p6440_pdma_pdata;
- platform_device_register(&s5p64x0_device_pdma);
+ amba_device_register(&s5p64x0_device_pdma, &iomem_resource);
return 0;
}
diff --git a/arch/arm/mach-s5p64x0/include/mach/dma.h b/arch/arm/mach-s5p64x0/include/mach/dma.h
index 1beae2c..5a622af 100644
--- a/arch/arm/mach-s5p64x0/include/mach/dma.h
+++ b/arch/arm/mach-s5p64x0/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 common DMA API driver for PL330 */
#include <plat/dma-pl330.h>
#endif /* __MACH_DMA_H */
--
1.7.1
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