1 files changed, 39 insertions, 0 deletions

diff --git a/arch/sh/include/cpu-sh4/cpu/dma-sh7780.h b/arch/sh/include/cpu-sh4/cpu/dma-sh7780.h
new file mode 100644
index 000000000000..71b426a6e482
--- /dev/null
+++ b/arch/sh/include/cpu-sh4/cpu/dma-sh7780.h
@@ -0,0 +1,39 @@
+#ifndef __ASM_SH_CPU_SH4_DMA_SH7780_H
+#define __ASM_SH_CPU_SH4_DMA_SH7780_H
+
+#define REQ_HE  0x000000C0
+#define REQ_H   0x00000080
+#define REQ_LE  0x00000040
+#define TM_BURST 0x0000020
+#define TS_8    0x00000000
+#define TS_16   0x00000008
+#define TS_32   0x00000010
+#define TS_16BLK        0x00000018
+#define TS_32BLK        0x00100000
+
+/*
+ * 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_8BIT,
+        XMIT_SZ_16BIT,
+        XMIT_SZ_32BIT,
+        XMIT_SZ_128BIT,
+        XMIT_SZ_256BIT,
+};
+
+/*
+ * The DMA count is defined as the number of bytes to transfer.
+ */
+static unsigned int ts_shift[] __maybe_unused = {
+        [XMIT_SZ_8BIT]          = 0,
+        [XMIT_SZ_16BIT]         = 1,
+        [XMIT_SZ_32BIT]         = 2,
+        [XMIT_SZ_128BIT]        = 4,
+        [XMIT_SZ_256BIT]        = 5,
+};
+
+#endif /* __ASM_SH_CPU_SH4_DMA_SH7780_H */