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-rw-r--r--arch/arm/mach-s3c6400/include/mach/dma.h59
1 files changed, 58 insertions, 1 deletions
diff --git a/arch/arm/mach-s3c6400/include/mach/dma.h b/arch/arm/mach-s3c6400/include/mach/dma.h
index 9771ac2..1067619 100644
--- a/arch/arm/mach-s3c6400/include/mach/dma.h
+++ b/arch/arm/mach-s3c6400/include/mach/dma.h
@@ -11,6 +11,63 @@
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H __FILE__
-/* currently nothing here, placeholder */
+#define S3C_DMA_CHANNELS (16)
+
+/* see mach-s3c2410/dma.h for notes on dma channel numbers */
+
+/* Note, for the S3C64XX architecture we keep the DMACH_
+ * defines in the order they are allocated to [S]DMA0/[S]DMA1
+ * so that is easy to do DHACH_ -> DMA controller conversion
+ */
+enum dma_ch {
+ /* DMA0/SDMA0 */
+ DMACH_UART0 = 0,
+ DMACH_UART0_SRC2,
+ DMACH_UART1,
+ DMACH_UART1_SRC2,
+ DMACH_UART2,
+ DMACH_UART2_SRC2,
+ DMACH_UART3,
+ DMACH_UART3_SRC2,
+ DMACH_PCM0_TX,
+ DMACH_PCM0_RX,
+ DMACH_I2S0_OUT,
+ DMACH_I2S0_IN,
+ DMACH_SPI0_TX,
+ DMACH_SPI0_RX,
+ DMACH_HSI_I2SV40_TX,
+ DMACH_HSI_I2SV40_RX,
+
+ /* DMA1/SDMA1 */
+ DMACH_PCM1_TX = 16,
+ DMACH_PCM1_RX,
+ DMACH_I2S1_OUT,
+ DMACH_I2S1_IN,
+ DMACH_SPI1_TX,
+ DMACH_SPI1_RX,
+ DMACH_AC97_PCMOUT,
+ DMACH_AC97_PCMIN,
+ DMACH_AC97_MICIN,
+ DMACH_PWM,
+ DMACH_IRDA,
+ DMACH_EXTERNAL,
+ DMACH_RES1,
+ DMACH_RES2,
+ DMACH_SECURITY_RX, /* SDMA1 only */
+ DMACH_SECURITY_TX, /* SDMA1 only */
+ DMACH_MAX /* the end */
+};
+
+static __inline__ int s3c_dma_has_circular(void)
+{
+ /* we will be supporting ciruclar buffers as soon as we have DMA
+ * engine support.
+ */
+ return 1;
+}
+
+#define S3C2410_DMAF_CIRCULAR (1 << 0)
+
+#include <plat/dma.h>
#endif /* __ASM_ARCH_IRQ_H */
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