This patch adds DAM machine support for S5P6440.
Signed-off-by: Atul Dahiya <atul.dahiya@xxxxxxxxxxx>
---
arch/arm/mach-s5p6440/Makefile | 2 +-
arch/arm/mach-s5p6440/cpu.c | 2 +-
arch/arm/mach-s5p6440/include/mach/map.h | 3 +
arch/arm/mach-s5p6440/s5p6440-dma.c | 166 ++++++++++++++++++++++++++++++
4 files changed, 171 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/mach-s5p6440/s5p6440-dma.c
diff --git a/arch/arm/mach-s5p6440/Makefile b/arch/arm/mach-s5p6440/Makefile
index 1ad894b..e7f5c6d 100644
--- a/arch/arm/mach-s5p6440/Makefile
+++ b/arch/arm/mach-s5p6440/Makefile
@@ -12,7 +12,7 @@ obj- :=
# Core support for S5P6440 system
-obj-$(CONFIG_CPU_S5P6440) += cpu.o init.o clock.o gpio.o
+obj-$(CONFIG_CPU_S5P6440) += cpu.o init.o clock.o gpio.o s5p6440-dma.o
# machine support
diff --git a/arch/arm/mach-s5p6440/cpu.c b/arch/arm/mach-s5p6440/cpu.c
index 1794131..ca3b320 100644
--- a/arch/arm/mach-s5p6440/cpu.c
+++ b/arch/arm/mach-s5p6440/cpu.c
@@ -88,7 +88,7 @@ void __init s5p6440_init_irq(void)
s5p_init_irq(vic, ARRAY_SIZE(vic));
}
-static struct sysdev_class s5p6440_sysclass = {
+struct sysdev_class s5p6440_sysclass = {
.name = "s5p6440-core",
};
diff --git a/arch/arm/mach-s5p6440/include/mach/map.h b/arch/arm/mach-s5p6440/include/mach/map.h
index 8924e5a..a652406 100644
--- a/arch/arm/mach-s5p6440/include/mach/map.h
+++ b/arch/arm/mach-s5p6440/include/mach/map.h
@@ -32,6 +32,8 @@
#define S5P6440_PA_VIC1 (0xE4100000)
#define S5P_PA_VIC1 S5P6440_PA_VIC1
+#define S5P6440_PA_DMA (0xE9000000)
+
#define S5P6440_PA_TIMER (0xEA000000)
#define S5P_PA_TIMER S5P6440_PA_TIMER
@@ -64,5 +66,6 @@
/* compatibiltiy defines. */
#define S3C_PA_UART S5P6440_PA_UART
#define S3C_PA_IIC S5P6440_PA_IIC0
+#define S5P_PA_DMA S5P6440_PA_DMA
#endif /* __ASM_ARCH_MAP_H */
diff --git a/arch/arm/mach-s5p6440/s5p6440-dma.c b/arch/arm/mach-s5p6440/s5p6440-dma.c
new file mode 100644
index 0000000..2bffd03
--- /dev/null
+++ b/arch/arm/mach-s5p6440/s5p6440-dma.c
@@ -0,0 +1,166 @@
+/* linux/arch/arm/mach-s5p6440/s5p6440-dma.c
+ *
+ * Copyright (c) 2010 Samsung Electronics
+ * http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/sysdev.h>
+#include <linux/serial_core.h>
+#include <asm/dma.h>
+#include <plat/s5p-dma.h>
+#include <plat/cpu.h>
+
+/* DMAC */
+#define MAP0(x) { \
+ [0] = (x) | DMA_CH_VALID, \
+ [1] = (x) | DMA_CH_VALID, \
+ [2] = (x) | DMA_CH_VALID, \
+ [3] = (x) | DMA_CH_VALID, \
+ [4] = (x) | DMA_CH_VALID, \
+ [5] = (x) | DMA_CH_VALID, \
+ [6] = (x) | DMA_CH_VALID, \
+ [7] = (x) | DMA_CH_VALID, \
+ }
+
+/* DMA request sources */
+#define S5P6440_DMA0_UART0CH0 0
+#define S5P6440_DMA0_UART0CH1 1
+#define S5P6440_DMA0_UART1CH0 2
+#define S5P6440_DMA0_UART1CH1 3
+#define S5P6440_DMA0_UART2CH0 4
+#define S5P6440_DMA0_UART2CH1 5
+#define S5P6440_DMA0_UART3CH0 6
+#define S5P6440_DMA0_UART3CH1 7
+#define S5P6440_DMA0_PCM0_TX 10
+#define S5P6440_DMA0_PCM0_RX 11
+#define S5P6440_DMA0_I2S0_TX 12
+#define S5P6440_DMA0_I2S0_RX 13
+#define S5P6440_DMA0_SPI0_TX 14
+#define S5P6440_DMA0_SPI0_RX 15
+#define S5P6440_DMA0_SPI1_TX 20
+#define S5P6440_DMA0_SPI1_RX 21
+#define S5P6440_DMA0_PWM 29
+#define S5P6440_DMA_M2M 0
+
+static struct s5p_dma_map __initdata s5p6440_dma_mappings[] = {
+
+ [DMACH_UART00] = {
+ .name = "uart00",
+ .channels = MAP0(S5P6440_DMA0_UART0CH0),
+ .hw_addr.from = S5P6440_DMA0_UART0CH0,
+ },
+ [DMACH_UART01] = {
+ .name = "uart01",
+ .channels = MAP0(S5P6440_DMA0_UART0CH1),
+ .hw_addr.from = S5P6440_DMA0_UART0CH1,
+ },
+ [DMACH_UART10] = {
+ .name = "uart10",
+ .channels = MAP0(S5P6440_DMA0_UART1CH0),
+ .hw_addr.from = S5P6440_DMA0_UART1CH0,
+ },
+ [DMACH_UART11] = {
+ .name = "uart11",
+ .channels = MAP0(S5P6440_DMA0_UART1CH1),
+ .hw_addr.from = S5P6440_DMA0_UART1CH1,
+ },
+ [DMACH_UART20] = {
+ .name = "uart20",
+ .channels = MAP0(S5P6440_DMA0_UART2CH0),
+ .hw_addr.from = S5P6440_DMA0_UART2CH0,
+ },
+ [DMACH_UART21] = {
+ .name = "uart21",
+ .channels = MAP0(S5P6440_DMA0_UART2CH1),
+ .hw_addr.from = S5P6440_DMA0_UART2CH1,
+ },
+ [DMACH_UART30] = {
+ .name = "uart30",
+ .channels = MAP0(S5P6440_DMA0_UART3CH0),
+ .hw_addr.from = S5P6440_DMA0_UART3CH0,
+ },
+ [DMACH_UART31] = {
+ .name = "uart31",
+ .channels = MAP0(S5P6440_DMA0_UART3CH1),
+ .hw_addr.from = S5P6440_DMA0_UART3CH1,
+ },
+ [DMACH_PCM0_IN] = {
+ .name = "pcm0",
+ .channels = MAP0(S5P6440_DMA0_PCM0_TX),
+ .hw_addr.from = S5P6440_DMA0_PCM0_TX,
+ },
+ [DMACH_PCM0_OUT] = {
+ .name = "pcm1",
+ .channels = MAP0(S5P6440_DMA0_PCM0_RX),
+ .hw_addr.from = S5P6440_DMA0_PCM0_RX,
+ },
+ [DMACH_I2S_IN] = {
+ .name = "i2s0",
+ .channels = MAP0(S5P6440_DMA0_I2S0_TX),
+ .hw_addr.from = S5P6440_DMA0_I2S0_TX,
+ },
+ [DMACH_I2S_OUT] = {
+ .name = "i2s1",
+ .channels = MAP0(S5P6440_DMA0_I2S0_RX),
+ .hw_addr.from = S5P6440_DMA0_I2S0_RX,
+ },
+ [DMACH_SPI0_IN] = {
+ .name = "spi00",
+ .channels = MAP0(S5P6440_DMA0_SPI0_TX),
+ .hw_addr.from = S5P6440_DMA0_SPI0_TX,
+ },
+ [DMACH_SPI0_OUT] = {
+ .name = "spi01",
+ .channels = MAP0(S5P6440_DMA0_SPI0_RX),
+ .hw_addr.from = S5P6440_DMA0_SPI0_RX,
+ },
+ [DMACH_SPI1_IN] = {
+ .name = "spi10",
+ .channels = MAP0(S5P6440_DMA0_SPI1_TX),
+ .hw_addr.from = S5P6440_DMA0_SPI1_TX,
+ },
+ [DMACH_SPI1_IN] = {
+ .name = "spi11",
+ .channels = MAP0(S5P6440_DMA0_SPI1_RX),
+ .hw_addr.from = S5P6440_DMA0_SPI1_RX,
+ },
+ [DMACH_PWM] = {
+ .name = "pwm",
+ .channels = MAP0(S5P6440_DMA0_PWM),
+ .hw_addr.from = S5P6440_DMA0_PWM,
+ }
+ };
+
+static void s5p6440_dma_select(struct s5p_dma_chan *chan,
+ struct s5p_dma_map *map)
+{
+ chan->map = map;
+}
+
+static struct s5p_dma_selection __initdata s5p_dma_sel = {
+ .select = s5p6440_dma_select,
+ .dcon_mask = 0,
+ .map = s5p6440_dma_mappings,
+ .map_size = ARRAY_SIZE(s5p6440_dma_mappings),
+};
+
+static int __init s5p6440_dma_add(struct sys_device *sysdev)
+{
+ s5p_dma_init(S5P_DMA_CHANNELS, IRQ_DMA0, 0x1000);
+ return s5p_dma_init_map(&s5p_dma_sel);
+}
+
+static struct sysdev_driver s5p6440_dma_driver = {
+ .add = s5p6440_dma_add,
+};
+
+static int __init s5p6440_dma_init(void)
+{
+ return sysdev_driver_register(&s5p6440_sysclass, &s5p6440_dma_driver);
+
+}
+arch_initcall(s5p6440_dma_init);
--
1.6.6
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