fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / asm-sh / cpu-sh4 / dma.h

diff --git a/include/asm-sh/cpu-sh4/dma.h b/include/asm-sh/cpu-sh4/dma.h
index 3ef2d0a..3e4b3e6 100644 (file)
--- a/include/asm-sh/cpu-sh4/dma.h
+++ b/include/asm-sh/cpu-sh4/dma.h
@@ -1,7 +1,54 @@
 #ifndef __ASM_CPU_SH4_DMA_H
 #define __ASM_CPU_SH4_DMA_H
 
+#define DMAOR_INIT     ( 0x8000 | DMAOR_DME )
+
+#ifdef CONFIG_CPU_SH4A
+#define SH_DMAC_BASE   0xfc808020
+
+#define CHCR_TS_MASK   0x18
+#define CHCR_TS_SHIFT  3
+
+#include <asm/cpu/dma-sh7780.h>
+#else
 #define SH_DMAC_BASE   0xffa00000
 
-#endif /* __ASM_CPU_SH4_DMA_H */
+/* 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   0x30
+#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[] __attribute__ ((used)) = {
+       [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 */