1 files changed, 51 insertions, 0 deletions

diff --git a/arch/sh/include/cpu-sh3/cpu/dma.h b/arch/sh/include/cpu-sh3/cpu/dma.h
new file mode 100644
index 00000000000..6813c3220a1
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/dma.h
@@ -0,0 +1,51 @@
+#ifndef __ASM_CPU_SH3_DMA_H
+#define __ASM_CPU_SH3_DMA_H
+
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
+#define SH_DMAC_BASE    0xa4010020
+#else
+#define SH_DMAC_BASE    0xa4000020
+#endif
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || defined(CONFIG_CPU_SUBTYPE_SH7709)
+#define DMTE0_IRQ       48
+#define DMTE1_IRQ       49
+#define DMTE2_IRQ       50
+#define DMTE3_IRQ       51
+#define DMTE4_IRQ       76
+#define DMTE5_IRQ       77
+#endif
+
+/* Definitions for the SuperH DMAC */
+#define TM_BURST        0x00000020
+#define TS_8            0x00000000
+#define TS_16           0x00000008
+#define TS_32           0x00000010
+#define TS_128          0x00000018
+
+#define CHCR_TS_MASK    0x18
+#define CHCR_TS_SHIFT   3
+
+#define DMAOR_INIT      DMAOR_DME
+
+/*
+ * The SuperH DMAC supports a number of transmit sizes, we list them here,
+ * with their respective values as they appear in the CHCR registers.
+ */
+enum {
+        XMIT_SZ_8BIT,
+        XMIT_SZ_16BIT,
+        XMIT_SZ_32BIT,
+        XMIT_SZ_128BIT,
+};
+
+static unsigned int ts_shift[] __maybe_unused = {
+        [XMIT_SZ_8BIT]          = 0,
+        [XMIT_SZ_16BIT]         = 1,
+        [XMIT_SZ_32BIT]         = 2,
+        [XMIT_SZ_128BIT]        = 4,
+};
+
+#endif /* __ASM_CPU_SH3_DMA_H */