[Blackfin] arch: Give the DMA base registers a more descriptive name

The DMA base registers are available in a global named "base_addr" for
every Blackfin variant. Give this a more descriptive name, and remove
duplicate tables from some drivers.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

arch/blackfin/kernel/bfin_dma_5xx.c

@@ -67,7 +67,7 @@ static int __init blackfin_dma_init(void)
 
 	for (i = 0; i < MAX_BLACKFIN_DMA_CHANNEL; i++) {
 		dma_ch[i].chan_status = DMA_CHANNEL_FREE;
-		dma_ch[i].regs = base_addr[i];
+		dma_ch[i].regs = dma_io_base_addr[i];
 		mutex_init(&(dma_ch[i].dmalock));
 	}
 	/* Mark MEMDMA Channel 0 as requested since we're using it internally */

arch/blackfin/mach-bf527/dma.c

@@ -31,7 +31,7 @@
 #include <asm/blackfin.h>
 #include <asm/dma.h>
 
-struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
+struct dma_register *dma_io_base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
 	(struct dma_register *) DMA0_NEXT_DESC_PTR,
 	(struct dma_register *) DMA1_NEXT_DESC_PTR,
 	(struct dma_register *) DMA2_NEXT_DESC_PTR,
@@ -49,7 +49,7 @@ struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
 	(struct dma_register *) MDMA_D1_NEXT_DESC_PTR,
 	(struct dma_register *) MDMA_S1_NEXT_DESC_PTR,
 };
-EXPORT_SYMBOL(base_addr);
+EXPORT_SYMBOL(dma_io_base_addr);
 
 int channel2irq(unsigned int channel)
 {

arch/blackfin/mach-bf533/dma.c

@@ -31,7 +31,7 @@
 #include <asm/blackfin.h>
 #include <asm/dma.h>
 
-struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
+struct dma_register *dma_io_base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
 	(struct dma_register *) DMA0_NEXT_DESC_PTR,
 	(struct dma_register *) DMA1_NEXT_DESC_PTR,
 	(struct dma_register *) DMA2_NEXT_DESC_PTR,
@@ -45,7 +45,7 @@ struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
 	(struct dma_register *) MDMA_D1_NEXT_DESC_PTR,
 	(struct dma_register *) MDMA_S1_NEXT_DESC_PTR,
 };
-EXPORT_SYMBOL(base_addr);
+EXPORT_SYMBOL(dma_io_base_addr);
 
 int channel2irq(unsigned int channel)
 {

arch/blackfin/mach-bf537/dma.c

@@ -31,7 +31,7 @@
 #include <asm/blackfin.h>
 #include <asm/dma.h>
 
-struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
+struct dma_register *dma_io_base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
 	(struct dma_register *) DMA0_NEXT_DESC_PTR,
 	(struct dma_register *) DMA1_NEXT_DESC_PTR,
 	(struct dma_register *) DMA2_NEXT_DESC_PTR,
@@ -49,7 +49,7 @@ struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
 	(struct dma_register *) MDMA_D1_NEXT_DESC_PTR,
 	(struct dma_register *) MDMA_S1_NEXT_DESC_PTR,
 };
-EXPORT_SYMBOL(base_addr);
+EXPORT_SYMBOL(dma_io_base_addr);
 
 int channel2irq(unsigned int channel)
 {

arch/blackfin/mach-bf548/dma.c

@@ -32,7 +32,7 @@
 #include <asm/blackfin.h>
 #include <asm/dma.h>
 
-struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
+struct dma_register *dma_io_base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
 	(struct dma_register *) DMA0_NEXT_DESC_PTR,
 	(struct dma_register *) DMA1_NEXT_DESC_PTR,
 	(struct dma_register *) DMA2_NEXT_DESC_PTR,
@@ -66,7 +66,7 @@ struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
 	(struct dma_register *) MDMA_D3_NEXT_DESC_PTR,
 	(struct dma_register *) MDMA_S3_NEXT_DESC_PTR,
 };
-EXPORT_SYMBOL(base_addr);
+EXPORT_SYMBOL(dma_io_base_addr);
 
 int channel2irq(unsigned int channel)
 {

arch/blackfin/mach-bf561/dma.c

@@ -31,7 +31,7 @@
 #include <asm/blackfin.h>
 #include <asm/dma.h>
 
-struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
+struct dma_register *dma_io_base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
 	(struct dma_register *) DMA1_0_NEXT_DESC_PTR,
 	(struct dma_register *) DMA1_1_NEXT_DESC_PTR,
 	(struct dma_register *) DMA1_2_NEXT_DESC_PTR,
@@ -69,7 +69,7 @@ struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
 	(struct dma_register *) IMDMA_D1_NEXT_DESC_PTR,
 	(struct dma_register *) IMDMA_S1_NEXT_DESC_PTR,
 };
-EXPORT_SYMBOL(base_addr);
+EXPORT_SYMBOL(dma_io_base_addr);
 
 int channel2irq(unsigned int channel)
 {

include/asm-blackfin/dma.h

@@ -191,4 +191,7 @@ void clear_dma_irqstat(unsigned int channel);
 void *dma_memcpy(void *dest, const void *src, size_t count);
 void *safe_dma_memcpy(void *dest, const void *src, size_t count);
 
+extern int channel2irq(unsigned int channel);
+extern struct dma_register *dma_io_base_addr[MAX_BLACKFIN_DMA_CHANNEL];
+
 #endif

include/asm-blackfin/mach-bf527/dma.h

@@ -59,7 +59,4 @@
 #define CH_NFC			CH_EMAC_TX /* PPI receive/transmit or NFC */
 #endif
 
-extern int channel2irq(unsigned int channel);
-extern struct dma_register *base_addr[];
-
 #endif

include/asm-blackfin/mach-bf533/dma.h

@@ -51,7 +51,4 @@
 #define CH_MEM_STREAM1_DEST     10	 /* TX */
 #define CH_MEM_STREAM1_SRC      11	 /* RX */
 
-extern int channel2irq(unsigned int channel);
-extern struct dma_register *base_addr[];
-
 #endif

include/asm-blackfin/mach-bf537/dma.h

@@ -52,7 +52,4 @@
 #define CH_MEM_STREAM1_DEST	14	 /* TX */
 #define CH_MEM_STREAM1_SRC 	15	 /* RX */
 
-extern int channel2irq(unsigned int channel);
-extern struct dma_register *base_addr[];
-
 #endif

include/asm-blackfin/mach-bf548/dma.h

@@ -73,6 +73,4 @@
 
 #define MAX_BLACKFIN_DMA_CHANNEL 32
 
-extern int channel2irq(unsigned int channel);
-extern struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL];
 #endif

include/asm-blackfin/mach-bf561/dma.h

@@ -32,7 +32,4 @@
 #define CH_IMEM_STREAM1_SRC	34
 #define CH_IMEM_STREAM1_DEST	35
 
-extern int channel2irq(unsigned int channel);
-extern struct dma_register *base_addr[];
-
 #endif