ARM: SAMSUNG: Remove dma-plat.h to allow plat-s3c64xx to be removed

dma-plat.h is the last file left in plat-s3c64xx, but to remove it we must also change the use of dma-plat.h by the core code and the s3c24xx implementation. Rename the s3c24xx dma-plat.h in the common plat-samsung directory as it may be used for other ports. Move the specific dma bits into the mach-s3c64xx directory and update the build as needed. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
git-mirror · Feb 21, 2010 · 992426b · 992426b
1 parent 431fb7d
commit 992426b
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Showing 10 changed files with 64 additions and 80 deletions.
diff --git a/arch/arm/mach-s3c2410/dma.c b/arch/arm/mach-s3c2410/dma.c
@@ -21,7 +21,7 @@
 #include <mach/dma.h>
 
 #include <plat/cpu.h>
-#include <plat/dma-plat.h>
+#include <plat/dma-s3c24xx.h>
 
 #include <plat/regs-serial.h>
 #include <mach/regs-gpio.h>

diff --git a/arch/arm/mach-s3c2412/dma.c b/arch/arm/mach-s3c2412/dma.c
@@ -20,7 +20,7 @@
 
 #include <mach/dma.h>
 
-#include <plat/dma-plat.h>
+#include <plat/dma-s3c24xx.h>
 #include <plat/cpu.h>
 
 #include <plat/regs-serial.h>

diff --git a/arch/arm/mach-s3c2440/dma.c b/arch/arm/mach-s3c2440/dma.c
@@ -20,7 +20,7 @@
 #include <mach/map.h>
 #include <mach/dma.h>
 
-#include <plat/dma-plat.h>
+#include <plat/dma-s3c24xx.h>
 #include <plat/cpu.h>
 
 #include <plat/regs-serial.h>

diff --git a/arch/arm/mach-s3c2443/dma.c b/arch/arm/mach-s3c2443/dma.c
@@ -20,7 +20,7 @@
 
 #include <mach/dma.h>
 
-#include <plat/dma-plat.h>
+#include <plat/dma-s3c24xx.h>
 #include <plat/cpu.h>
 
 #include <plat/regs-serial.h>

diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c
@@ -27,7 +27,6 @@
 #include <mach/map.h>
 #include <mach/irqs.h>
 
-#include <plat/dma-plat.h>
 #include <mach/regs-sys.h>
 
 #include <asm/hardware/pl080.h>

diff --git a/arch/arm/mach-s3c64xx/include/mach/dma.h b/arch/arm/mach-s3c64xx/include/mach/dma.h
@@ -67,4 +67,61 @@ static __inline__ bool s3c_dma_has_circular(void)
 
 #include <plat/dma.h>
 
+#define DMACH_LOW_LEVEL (1<<28) /* use this to specifiy hardware ch no */
+
+struct s3c64xx_dma_buff;
+
+/** s3c64xx_dma_buff - S3C64XX DMA buffer descriptor
+ * @next: Pointer to next buffer in queue or ring.
+ * @pw: Client provided identifier
+ * @lli: Pointer to hardware descriptor this buffer is associated with.
+ * @lli_dma: Hardare address of the descriptor.
+ */
+struct s3c64xx_dma_buff {
+	struct s3c64xx_dma_buff *next;
+
+	void			*pw;
+	struct pl080s_lli	*lli;
+	dma_addr_t		 lli_dma;
+};
+
+struct s3c64xx_dmac;
+
+struct s3c2410_dma_chan {
+	unsigned char		 number;      /* number of this dma channel */
+	unsigned char		 in_use;      /* channel allocated */
+	unsigned char		 bit;	      /* bit for enable/disable/etc */
+	unsigned char		 hw_width;
+	unsigned char		 peripheral;
+
+	unsigned int		 flags;
+	enum s3c2410_dmasrc	 source;
+
+
+	dma_addr_t		dev_addr;
+
+	struct s3c2410_dma_client *client;
+	struct s3c64xx_dmac	*dmac;		/* pointer to controller */
+
+	void __iomem		*regs;
+
+	/* cdriver callbacks */
+	s3c2410_dma_cbfn_t	 callback_fn;	/* buffer done callback */
+	s3c2410_dma_opfn_t	 op_fn;		/* channel op callback */
+
+	/* buffer list and information */
+	struct s3c64xx_dma_buff	*curr;		/* current dma buffer */
+	struct s3c64xx_dma_buff	*next;		/* next buffer to load */
+	struct s3c64xx_dma_buff	*end;		/* end of queue */
+
+	/* note, when channel is running in circular mode, curr is the
+	 * first buffer enqueued, end is the last and curr is where the
+	 * last buffer-done event is set-at. The buffers are not freed
+	 * and the last buffer hardware descriptor points back to the
+	 * first.
+	 */
+};
+
+#include <plat/dma-core.h>
+
 #endif /* __ASM_ARCH_IRQ_H */
diff --git a/arch/arm/plat-s3c/dma.c b/arch/arm/plat-s3c/dma.c
@@ -20,8 +20,6 @@ struct s3c2410_dma_buf;
 #include <mach/dma.h>
 #include <mach/irqs.h>
 
-#include <plat/dma-plat.h>
-
 /* dma channel state information */
 struct s3c2410_dma_chan s3c2410_chans[S3C_DMA_CHANNELS];
 struct s3c2410_dma_chan *s3c_dma_chan_map[DMACH_MAX];

diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
@@ -33,7 +33,7 @@
 #include <mach/dma.h>
 #include <mach/map.h>
 
-#include <plat/dma-plat.h>
+#include <plat/dma-s3c24xx.h>
 #include <plat/regs-dma.h>
 
 /* io map for dma */

diff --git a/arch/arm/plat-s3c64xx/include/plat/dma-plat.h b/arch/arm/plat-s3c64xx/include/plat/dma-plat.h
diff --git a/.../arm/plat-s3c24xx/include/plat/dma-plat.h → ...m/plat-samsung/include/plat/dma-s3c24xx.h b/.../arm/plat-s3c24xx/include/plat/dma-plat.h → ...m/plat-samsung/include/plat/dma-s3c24xx.h
@@ -1,9 +1,9 @@
-/* linux/arch/arm/plat-s3c24xx/include/plat/dma-plat.h
+/* linux/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h
  *
  * Copyright (C) 2006 Simtec Electronics
  *	Ben Dooks <ben@simtec.co.uk>
  *
- * Samsung S3C24XX DMA support
+ * Samsung S3C24XX DMA support - per SoC functions
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as