1 files changed, 65 insertions, 0 deletions
diff --git a/arch/sh/include/cpu-sh4/cpu/dma.h b/arch/sh/include/cpu-sh4/cpu/dma.h
new file mode 100644
index 0000000..235b7cd
--- /dev/null
+++ b/arch/sh/include/cpu-sh4/cpu/dma.h
@@ -0,0 +1,65 @@
+#ifndef __ASM_CPU_SH4_DMA_H
+#define __ASM_CPU_SH4_DMA_H
+
+#define DMAOR_INIT	( 0x8000 | DMAOR_DME )
+
+/* SH7751/7760/7780 DMA IRQ sources */
+#define DMTE0_IRQ	34
+#define DMTE1_IRQ	35
+#define DMTE2_IRQ	36
+#define DMTE3_IRQ	37
+#define DMTE4_IRQ	44
+#define DMTE5_IRQ	45
+#define DMTE6_IRQ	46
+#define DMTE7_IRQ	47
+#define DMAE_IRQ	38
+
+#ifdef CONFIG_CPU_SH4A
+#define SH_DMAC_BASE	0xfc808020
+
+#define CHCR_TS_MASK	0x18
+#define CHCR_TS_SHIFT	3
+
+#include <cpu/dma-sh7780.h>
+#else
+#define SH_DMAC_BASE	0xffa00000
+
+/* Definitions for the SuperH DMAC */
+#define TM_BURST	0x0000080
+#define TS_8		0x00000010
+#define TS_16		0x00000020
+#define TS_32		0x00000030
+#define TS_64		0x00000000
+
+#define CHCR_TS_MASK	0x70
+#define CHCR_TS_SHIFT	4
+
+#define DMAOR_COD	0x00000008
+
+/*
+ * The SuperH DMAC supports a number of transmit sizes, we list them here,
+ * with their respective values as they appear in the CHCR registers.
+ *
+ * Defaults to a 64-bit transfer size.
+ */
+enum {
+	XMIT_SZ_64BIT,
+	XMIT_SZ_8BIT,
+	XMIT_SZ_16BIT,
+	XMIT_SZ_32BIT,
+	XMIT_SZ_256BIT,
+};
+
+/*
+ * The DMA count is defined as the number of bytes to transfer.
+ */
+static unsigned int ts_shift[] __maybe_unused = {
+	[XMIT_SZ_64BIT]		= 3,
+	[XMIT_SZ_8BIT]		= 0,
+	[XMIT_SZ_16BIT]		= 1,
+	[XMIT_SZ_32BIT]		= 2,
+	[XMIT_SZ_256BIT]	= 5,
+};
+#endif
+
+#endif /* __ASM_CPU_SH4_DMA_H */