From: Mike Frysinger <vapier@gentoo.org>
Date: Mon, 25 Oct 2010 08:02:30 +0000 (+0000)
Subject: Blackfin: bfin_dma.h: start a header for DMA MMR layout
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6c8e75a06c8ee32c68ce90afa4a0fe093327b0e4;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git
Blackfin: bfin_dma.h: start a header for DMA MMR layout
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
diff --git a/arch/blackfin/include/asm/bfin_dma.h b/arch/blackfin/include/asm/bfin_dma.h
new file mode 100644
index 000000000000..d51120744148
--- /dev/null
+++ b/arch/blackfin/include/asm/bfin_dma.h
@@ -0,0 +1,91 @@
+/*
+ * bfin_dma.h - Blackfin DMA defines/structures/etc...
+ *
+ * Copyright 2004-2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_DMA_H__
+#define __ASM_BFIN_DMA_H__
+
+#include <linux/types.h>
+
+/* DMA_CONFIG Masks */
+#define DMAEN 0x0001 /* DMA Channel Enable */
+#define WNR 0x0002 /* Channel Direction (W/R*) */
+#define WDSIZE_8 0x0000 /* Transfer Word Size = 8 */
+#define WDSIZE_16 0x0004 /* Transfer Word Size = 16 */
+#define WDSIZE_32 0x0008 /* Transfer Word Size = 32 */
+#define DMA2D 0x0010 /* DMA Mode (2D/1D*) */
+#define RESTART 0x0020 /* DMA Buffer Clear */
+#define DI_SEL 0x0040 /* Data Interrupt Timing Select */
+#define DI_EN 0x0080 /* Data Interrupt Enable */
+#define NDSIZE_0 0x0000 /* Next Descriptor Size = 0 (Stop/Autobuffer) */
+#define NDSIZE_1 0x0100 /* Next Descriptor Size = 1 */
+#define NDSIZE_2 0x0200 /* Next Descriptor Size = 2 */
+#define NDSIZE_3 0x0300 /* Next Descriptor Size = 3 */
+#define NDSIZE_4 0x0400 /* Next Descriptor Size = 4 */
+#define NDSIZE_5 0x0500 /* Next Descriptor Size = 5 */
+#define NDSIZE_6 0x0600 /* Next Descriptor Size = 6 */
+#define NDSIZE_7 0x0700 /* Next Descriptor Size = 7 */
+#define NDSIZE_8 0x0800 /* Next Descriptor Size = 8 */
+#define NDSIZE_9 0x0900 /* Next Descriptor Size = 9 */
+#define NDSIZE 0x0f00 /* Next Descriptor Size */
+#define DMAFLOW 0x7000 /* Flow Control */
+#define DMAFLOW_STOP 0x0000 /* Stop Mode */
+#define DMAFLOW_AUTO 0x1000 /* Autobuffer Mode */
+#define DMAFLOW_ARRAY 0x4000 /* Descriptor Array Mode */
+#define DMAFLOW_SMALL 0x6000 /* Small Model Descriptor List Mode */
+#define DMAFLOW_LARGE 0x7000 /* Large Model Descriptor List Mode */
+
+/* DMA_IRQ_STATUS Masks */
+#define DMA_DONE 0x0001 /* DMA Completion Interrupt Status */
+#define DMA_ERR 0x0002 /* DMA Error Interrupt Status */
+#define DFETCH 0x0004 /* DMA Descriptor Fetch Indicator */
+#define DMA_RUN 0x0008 /* DMA Channel Running Indicator */
+
+/*
+ * All Blackfin system MMRs are padded to 32bits even if the register
+ * itself is only 16bits. So use a helper macro to streamline this.
+ */
+#define __BFP(m) u16 m; u16 __pad_##m
+
+/*
+ * bfin dma registers layout
+ */
+struct bfin_dma_regs {
+ u32 next_desc_ptr;
+ u32 start_addr;
+ __BFP(config);
+ u32 __pad0;
+ __BFP(x_count);
+ __BFP(x_modify);
+ __BFP(y_count);
+ __BFP(y_modify);
+ u32 curr_desc_ptr;
+ u32 curr_addr;
+ __BFP(irq_status);
+ __BFP(peripheral_map);
+ __BFP(curr_x_count);
+ u32 __pad1;
+ __BFP(curr_y_count);
+ u32 __pad2;
+};
+
+/*
+ * bfin handshake mdma registers layout
+ */
+struct bfin_hmdma_regs {
+ __BFP(control);
+ __BFP(ecinit);
+ __BFP(bcinit);
+ __BFP(ecurgent);
+ __BFP(ecoverflow);
+ __BFP(ecount);
+ __BFP(bcount);
+};
+
+#undef __BFP
+
+#endif
diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h
index eedf3ca65ba2..be862e7de784 100644
--- a/arch/blackfin/include/asm/dma.h
+++ b/arch/blackfin/include/asm/dma.h
@@ -14,40 +14,7 @@
#include <asm/blackfin.h>
#include <asm/page.h>
#include <asm-generic/dma.h>
-
-/* DMA_CONFIG Masks */
-#define DMAEN 0x0001 /* DMA Channel Enable */
-#define WNR 0x0002 /* Channel Direction (W/R*) */
-#define WDSIZE_8 0x0000 /* Transfer Word Size = 8 */
-#define WDSIZE_16 0x0004 /* Transfer Word Size = 16 */
-#define WDSIZE_32 0x0008 /* Transfer Word Size = 32 */
-#define DMA2D 0x0010 /* DMA Mode (2D/1D*) */
-#define RESTART 0x0020 /* DMA Buffer Clear */
-#define DI_SEL 0x0040 /* Data Interrupt Timing Select */
-#define DI_EN 0x0080 /* Data Interrupt Enable */
-#define NDSIZE_0 0x0000 /* Next Descriptor Size = 0 (Stop/Autobuffer) */
-#define NDSIZE_1 0x0100 /* Next Descriptor Size = 1 */
-#define NDSIZE_2 0x0200 /* Next Descriptor Size = 2 */
-#define NDSIZE_3 0x0300 /* Next Descriptor Size = 3 */
-#define NDSIZE_4 0x0400 /* Next Descriptor Size = 4 */
-#define NDSIZE_5 0x0500 /* Next Descriptor Size = 5 */
-#define NDSIZE_6 0x0600 /* Next Descriptor Size = 6 */
-#define NDSIZE_7 0x0700 /* Next Descriptor Size = 7 */
-#define NDSIZE_8 0x0800 /* Next Descriptor Size = 8 */
-#define NDSIZE_9 0x0900 /* Next Descriptor Size = 9 */
-#define NDSIZE 0x0f00 /* Next Descriptor Size */
-#define DMAFLOW 0x7000 /* Flow Control */
-#define DMAFLOW_STOP 0x0000 /* Stop Mode */
-#define DMAFLOW_AUTO 0x1000 /* Autobuffer Mode */
-#define DMAFLOW_ARRAY 0x4000 /* Descriptor Array Mode */
-#define DMAFLOW_SMALL 0x6000 /* Small Model Descriptor List Mode */
-#define DMAFLOW_LARGE 0x7000 /* Large Model Descriptor List Mode */
-
-/* DMA_IRQ_STATUS Masks */
-#define DMA_DONE 0x0001 /* DMA Completion Interrupt Status */
-#define DMA_ERR 0x0002 /* DMA Error Interrupt Status */
-#define DFETCH 0x0004 /* DMA Descriptor Fetch Indicator */
-#define DMA_RUN 0x0008 /* DMA Channel Running Indicator */
+#include <asm/bfin_dma.h>
/*-------------------------
* config reg bits value