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ARM: EXYNOS: Support DMA for EXYNOS5250 SoC
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mach-exynos/dma.c is updated to support both exynos4 and exynos5.

Signed-off-by: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Boojin Kim authored and Kukjin Kim committed May 12, 2012
1 parent 06050e5 commit 20ef9e0
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Showing 5 changed files with 121 additions and 32 deletions.
7 changes: 4 additions & 3 deletions arch/arm/mach-exynos/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,7 @@ config SOC_EXYNOS5250
bool "SAMSUNG EXYNOS5250"
default y
depends on ARCH_EXYNOS5
select SAMSUNG_DMADEV
help
Enable EXYNOS5250 SoC support

Expand All @@ -70,7 +71,7 @@ config EXYNOS4_MCT
help
Use MCT (Multi Core Timer) as kernel timers

config EXYNOS4_DEV_DMA
config EXYNOS_DEV_DMA
bool
help
Compile in amba device definitions for DMA controller
Expand Down Expand Up @@ -228,7 +229,7 @@ config MACH_ARMLEX4210
select S3C_DEV_HSMMC2
select S3C_DEV_HSMMC3
select EXYNOS4_DEV_AHCI
select EXYNOS4_DEV_DMA
select EXYNOS_DEV_DMA
select EXYNOS4_SETUP_SDHCI
help
Machine support for Samsung ARMLEX4210 based on EXYNOS4210
Expand Down Expand Up @@ -352,7 +353,7 @@ config MACH_SMDK4212
select SAMSUNG_DEV_KEYPAD
select SAMSUNG_DEV_PWM
select EXYNOS_DEV_SYSMMU
select EXYNOS4_DEV_DMA
select EXYNOS_DEV_DMA
select EXYNOS4_SETUP_I2C1
select EXYNOS4_SETUP_I2C3
select EXYNOS4_SETUP_I2C7
Expand Down
2 changes: 1 addition & 1 deletion arch/arm/mach-exynos/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@ obj-y += dev-uart.o
obj-$(CONFIG_ARCH_EXYNOS4) += dev-audio.o
obj-$(CONFIG_EXYNOS4_DEV_AHCI) += dev-ahci.o
obj-$(CONFIG_EXYNOS4_DEV_DWMCI) += dev-dwmci.o
obj-$(CONFIG_EXYNOS4_DEV_DMA) += dma.o
obj-$(CONFIG_EXYNOS_DEV_DMA) += dma.o
obj-$(CONFIG_EXYNOS4_DEV_USB_OHCI) += dev-ohci.o
obj-$(CONFIG_EXYNOS_DEV_DRM) += dev-drm.o
obj-$(CONFIG_EXYNOS_DEV_SYSMMU) += dev-sysmmu.o
Expand Down
141 changes: 114 additions & 27 deletions arch/arm/mach-exynos/dma.c
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Original file line number Diff line number Diff line change
Expand Up @@ -103,10 +103,45 @@ static u8 exynos4212_pdma0_peri[] = {
DMACH_MIPI_HSI5,
};

struct dma_pl330_platdata exynos4_pdma0_pdata;
static u8 exynos5250_pdma0_peri[] = {
DMACH_PCM0_RX,
DMACH_PCM0_TX,
DMACH_PCM2_RX,
DMACH_PCM2_TX,
DMACH_SPI0_RX,
DMACH_SPI0_TX,
DMACH_SPI2_RX,
DMACH_SPI2_TX,
DMACH_I2S0S_TX,
DMACH_I2S0_RX,
DMACH_I2S0_TX,
DMACH_I2S2_RX,
DMACH_I2S2_TX,
DMACH_UART0_RX,
DMACH_UART0_TX,
DMACH_UART2_RX,
DMACH_UART2_TX,
DMACH_UART4_RX,
DMACH_UART4_TX,
DMACH_SLIMBUS0_RX,
DMACH_SLIMBUS0_TX,
DMACH_SLIMBUS2_RX,
DMACH_SLIMBUS2_TX,
DMACH_SLIMBUS4_RX,
DMACH_SLIMBUS4_TX,
DMACH_AC97_MICIN,
DMACH_AC97_PCMIN,
DMACH_AC97_PCMOUT,
DMACH_MIPI_HSI0,
DMACH_MIPI_HSI2,
DMACH_MIPI_HSI4,
DMACH_MIPI_HSI6,
};

static struct dma_pl330_platdata exynos_pdma0_pdata;

static AMBA_AHB_DEVICE(exynos4_pdma0, "dma-pl330.0", 0x00041330,
EXYNOS4_PA_PDMA0, {EXYNOS4_IRQ_PDMA0}, &exynos4_pdma0_pdata);
static AMBA_AHB_DEVICE(exynos_pdma0, "dma-pl330.0", 0x00041330,
EXYNOS4_PA_PDMA0, {EXYNOS4_IRQ_PDMA0}, &exynos_pdma0_pdata);

static u8 exynos4210_pdma1_peri[] = {
DMACH_PCM0_RX,
Expand Down Expand Up @@ -169,10 +204,45 @@ static u8 exynos4212_pdma1_peri[] = {
DMACH_MIPI_HSI7,
};

static struct dma_pl330_platdata exynos4_pdma1_pdata;
static u8 exynos5250_pdma1_peri[] = {
DMACH_PCM0_RX,
DMACH_PCM0_TX,
DMACH_PCM1_RX,
DMACH_PCM1_TX,
DMACH_SPI1_RX,
DMACH_SPI1_TX,
DMACH_PWM,
DMACH_SPDIF,
DMACH_I2S0S_TX,
DMACH_I2S0_RX,
DMACH_I2S0_TX,
DMACH_I2S1_RX,
DMACH_I2S1_TX,
DMACH_UART0_RX,
DMACH_UART0_TX,
DMACH_UART1_RX,
DMACH_UART1_TX,
DMACH_UART3_RX,
DMACH_UART3_TX,
DMACH_SLIMBUS1_RX,
DMACH_SLIMBUS1_TX,
DMACH_SLIMBUS3_RX,
DMACH_SLIMBUS3_TX,
DMACH_SLIMBUS5_RX,
DMACH_SLIMBUS5_TX,
DMACH_SLIMBUS0AUX_RX,
DMACH_SLIMBUS0AUX_TX,
DMACH_DISP1,
DMACH_MIPI_HSI1,
DMACH_MIPI_HSI3,
DMACH_MIPI_HSI5,
DMACH_MIPI_HSI7,
};

static AMBA_AHB_DEVICE(exynos4_pdma1, "dma-pl330.1", 0x00041330,
EXYNOS4_PA_PDMA1, {EXYNOS4_IRQ_PDMA1}, &exynos4_pdma1_pdata);
static struct dma_pl330_platdata exynos_pdma1_pdata;

static AMBA_AHB_DEVICE(exynos_pdma1, "dma-pl330.1", 0x00041330,
EXYNOS4_PA_PDMA1, {EXYNOS4_IRQ_PDMA1}, &exynos_pdma1_pdata);

static u8 mdma_peri[] = {
DMACH_MTOM_0,
Expand All @@ -185,46 +255,63 @@ static u8 mdma_peri[] = {
DMACH_MTOM_7,
};

static struct dma_pl330_platdata exynos4_mdma1_pdata = {
static struct dma_pl330_platdata exynos_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, {EXYNOS4_IRQ_MDMA1}, &exynos4_mdma1_pdata);
static AMBA_AHB_DEVICE(exynos_mdma1, "dma-pl330.2", 0x00041330,
EXYNOS4_PA_MDMA1, {EXYNOS4_IRQ_MDMA1}, &exynos_mdma1_pdata);

static int __init exynos4_dma_init(void)
static int __init exynos_dma_init(void)
{
if (of_have_populated_dt())
return 0;

if (soc_is_exynos4210()) {
exynos4_pdma0_pdata.nr_valid_peri =
exynos_pdma0_pdata.nr_valid_peri =
ARRAY_SIZE(exynos4210_pdma0_peri);
exynos4_pdma0_pdata.peri_id = exynos4210_pdma0_peri;
exynos4_pdma1_pdata.nr_valid_peri =
exynos_pdma0_pdata.peri_id = exynos4210_pdma0_peri;
exynos_pdma1_pdata.nr_valid_peri =
ARRAY_SIZE(exynos4210_pdma1_peri);
exynos4_pdma1_pdata.peri_id = exynos4210_pdma1_peri;
exynos_pdma1_pdata.peri_id = exynos4210_pdma1_peri;
} else if (soc_is_exynos4212() || soc_is_exynos4412()) {
exynos4_pdma0_pdata.nr_valid_peri =
exynos_pdma0_pdata.nr_valid_peri =
ARRAY_SIZE(exynos4212_pdma0_peri);
exynos4_pdma0_pdata.peri_id = exynos4212_pdma0_peri;
exynos4_pdma1_pdata.nr_valid_peri =
exynos_pdma0_pdata.peri_id = exynos4212_pdma0_peri;
exynos_pdma1_pdata.nr_valid_peri =
ARRAY_SIZE(exynos4212_pdma1_peri);
exynos4_pdma1_pdata.peri_id = exynos4212_pdma1_peri;
exynos_pdma1_pdata.peri_id = exynos4212_pdma1_peri;
} else if (soc_is_exynos5250()) {
exynos_pdma0_pdata.nr_valid_peri =
ARRAY_SIZE(exynos5250_pdma0_peri);
exynos_pdma0_pdata.peri_id = exynos5250_pdma0_peri;
exynos_pdma1_pdata.nr_valid_peri =
ARRAY_SIZE(exynos5250_pdma1_peri);
exynos_pdma1_pdata.peri_id = exynos5250_pdma1_peri;

exynos_pdma0_device.res.start = EXYNOS5_PA_PDMA0;
exynos_pdma0_device.res.end = EXYNOS5_PA_PDMA0 + SZ_4K;
exynos_pdma0_device.irq[0] = EXYNOS5_IRQ_PDMA0;
exynos_pdma1_device.res.start = EXYNOS5_PA_PDMA1;
exynos_pdma1_device.res.end = EXYNOS5_PA_PDMA1 + SZ_4K;
exynos_pdma0_device.irq[0] = EXYNOS5_IRQ_PDMA1;
exynos_mdma1_device.res.start = EXYNOS5_PA_MDMA1;
exynos_mdma1_device.res.end = EXYNOS5_PA_MDMA1 + SZ_4K;
exynos_pdma0_device.irq[0] = EXYNOS5_IRQ_MDMA1;
}

dma_cap_set(DMA_SLAVE, exynos4_pdma0_pdata.cap_mask);
dma_cap_set(DMA_CYCLIC, exynos4_pdma0_pdata.cap_mask);
amba_device_register(&exynos4_pdma0_device, &iomem_resource);
dma_cap_set(DMA_SLAVE, exynos_pdma0_pdata.cap_mask);
dma_cap_set(DMA_CYCLIC, exynos_pdma0_pdata.cap_mask);
amba_device_register(&exynos_pdma0_device, &iomem_resource);

dma_cap_set(DMA_SLAVE, exynos4_pdma1_pdata.cap_mask);
dma_cap_set(DMA_CYCLIC, exynos4_pdma1_pdata.cap_mask);
amba_device_register(&exynos4_pdma1_device, &iomem_resource);
dma_cap_set(DMA_SLAVE, exynos_pdma1_pdata.cap_mask);
dma_cap_set(DMA_CYCLIC, exynos_pdma1_pdata.cap_mask);
amba_device_register(&exynos_pdma1_device, &iomem_resource);

dma_cap_set(DMA_MEMCPY, exynos4_mdma1_pdata.cap_mask);
amba_device_register(&exynos4_mdma1_device, &iomem_resource);
dma_cap_set(DMA_MEMCPY, exynos_mdma1_pdata.cap_mask);
amba_device_register(&exynos_mdma1_device, &iomem_resource);

return 0;
}
arch_initcall(exynos4_dma_init);
arch_initcall(exynos_dma_init);
2 changes: 1 addition & 1 deletion arch/arm/plat-samsung/Kconfig
View file
Original file line number Diff line number Diff line change
Expand Up @@ -291,7 +291,7 @@ config S3C_DMA
config SAMSUNG_DMADEV
bool
select DMADEVICES
select PL330_DMA if (CPU_EXYNOS4210 || CPU_S5PV210 || CPU_S5PC100 || \
select PL330_DMA if (ARCH_EXYNOS5 || ARCH_EXYNOS4 || CPU_S5PV210 || CPU_S5PC100 || \
CPU_S5P6450 || CPU_S5P6440)
select ARM_AMBA
help
Expand Down
1 change: 1 addition & 0 deletions arch/arm/plat-samsung/include/plat/dma-pl330.h
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,7 @@ enum dma_ch {
DMACH_MIPI_HSI5,
DMACH_MIPI_HSI6,
DMACH_MIPI_HSI7,
DMACH_DISP1,
DMACH_MTOM_0,
DMACH_MTOM_1,
DMACH_MTOM_2,
Expand Down

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