fsl: Create common fsl_dma.h for 85xx and 86xx cpus

Break out DMA structures for the Freescale MPC85xx and MPC86xx cpus to
reduce a large amount of code duplication

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

5 files changed, 89 insertions, 172 deletions

diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c
index 9ad1188..331fcc0 100644
--- a/cpu/mpc85xx/cpu.c
+++ b/cpu/mpc85xx/cpu.c
@@ -266,26 +266,28 @@ reset_85xx_watchdog(void)
 
 #if defined(CONFIG_DDR_ECC)
 void dma_init(void) {
-	volatile ccsr_dma_t *dma = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
+	volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
 
-	dma->satr0 = 0x02c40000;
-	dma->datr0 = 0x02c40000;
-	dma->sr0 = 0xfffffff; /* clear any errors */
+	dma->satr = 0x02c40000;
+	dma->datr = 0x02c40000;
+	dma->sr = 0xfffffff; /* clear any errors */
 	asm("sync; isync; msync");
 	return;
 }
 
 uint dma_check(void) {
-	volatile ccsr_dma_t *dma = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
-	volatile uint status = dma->sr0;
+	volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
+	volatile uint status = dma->sr;
 
 	/* While the channel is busy, spin */
 	while((status & 4) == 4) {
-		status = dma->sr0;
+		status = dma->sr;
 	}
 
 	/* clear MR0[CS] channel start bit */
-	dma->mr0 &= 0x00000001;
+	dma->mr &= 0x00000001;
 	asm("sync;isync;msync");
 
 	if (status != 0) {
@@ -295,14 +297,15 @@ uint dma_check(void) {
 }
 
 int dma_xfer(void *dest, uint count, void *src) {
-	volatile ccsr_dma_t *dma = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
+	volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
 
-	dma->dar0 = (uint) dest;
-	dma->sar0 = (uint) src;
-	dma->bcr0 = count;
-	dma->mr0 = 0xf000004;
+	dma->dar = (uint) dest;
+	dma->sar = (uint) src;
+	dma->bcr = count;
+	dma->mr = 0xf000004;
 	asm("sync;isync;msync");
-	dma->mr0 = 0xf000005;
+	dma->mr = 0xf000005;
 	asm("sync;isync;msync");
 	return dma_check();
 }
diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c
index 653a137..f35323a 100644
--- a/cpu/mpc86xx/cpu.c
+++ b/cpu/mpc86xx/cpu.c
@@ -183,10 +183,11 @@ void
 dma_init(void)
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
-	volatile ccsr_dma_t *dma = &immap->im_dma;
+	volatile ccsr_dma_t *dma_base = &immap->im_dma;
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
 
-	dma->satr0 = 0x00040000;
-	dma->datr0 = 0x00040000;
+	dma->satr = 0x00040000;
+	dma->datr = 0x00040000;
 	asm("sync; isync");
 }
 
@@ -194,12 +195,13 @@ uint
 dma_check(void)
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
-	volatile ccsr_dma_t *dma = &immap->im_dma;
-	volatile uint status = dma->sr0;
+	volatile ccsr_dma_t *dma_base = &immap->im_dma;
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
+	volatile uint status = dma->sr;
 
 	/* While the channel is busy, spin */
 	while ((status & 4) == 4) {
-		status = dma->sr0;
+		status = dma->sr;
 	}
 
 	if (status != 0) {
@@ -212,14 +214,15 @@ int
 dma_xfer(void *dest, uint count, void *src)
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
-	volatile ccsr_dma_t *dma = &immap->im_dma;
+	volatile ccsr_dma_t *dma_base = &immap->im_dma;
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
 
-	dma->dar0 = (uint) dest;
-	dma->sar0 = (uint) src;
-	dma->bcr0 = count;
-	dma->mr0 = 0xf000004;
+	dma->dar = (uint) dest;
+	dma->sar = (uint) src;
+	dma->bcr = count;
+	dma->mr = 0xf000004;
 	asm("sync;isync");
-	dma->mr0 = 0xf000005;
+	dma->mr = 0xf000005;
 	asm("sync;isync");
 	return dma_check();
 }
diff --git a/include/asm-ppc/fsl_dma.h b/include/asm-ppc/fsl_dma.h
new file mode 100644
index 0000000..aab8720
--- /dev/null
+++ b/include/asm-ppc/fsl_dma.h
@@ -0,0 +1,51 @@
+/*
+ * Freescale DMA Controller
+ *
+ * Copyright 2006 Freescale Semiconductor, Inc.
+ *
+ * This software may be used and distributed according to the
+ * terms of the GNU Public License, Version 2, incorporated
+ * herein by reference.
+ *
+ * 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 published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_FSL_DMA_H_
+#define _ASM_FSL_DMA_H_
+
+#include <asm/types.h>
+
+typedef struct fsl_dma {
+	uint	mr;		/* DMA mode register */
+	uint	sr;		/* DMA status register */
+	char	res0[4];
+	uint	clndar;		/* DMA current link descriptor address register */
+	uint	satr;		/* DMA source attributes register */
+	uint	sar;		/* DMA source address register */
+	uint	datr;		/* DMA destination attributes register */
+	uint	dar;		/* DMA destination address register */
+	uint	bcr;		/* DMA byte count register */
+	char	res1[4];
+	uint	nlndar;		/* DMA next link descriptor address register */
+	char	res2[8];
+	uint	clabdar;	/* DMA current List - alternate base descriptor address Register */
+	char	res3[4];
+	uint	nlsdar;		/* DMA next list descriptor address register */
+	uint	ssr;		/* DMA source stride register */
+	uint	dsr;		/* DMA destination stride register */
+	char	res4[56];
+} fsl_dma_t;
+
+#endif	/* _ASM_DMA_H_ */
diff --git a/include/asm-ppc/immap_85xx.h b/include/asm-ppc/immap_85xx.h
index 0f9f493..e4f5ee2 100644
--- a/include/asm-ppc/immap_85xx.h
+++ b/include/asm-ppc/immap_85xx.h
@@ -12,6 +12,7 @@
 #define __IMMAP_85xx__
 
 #include <asm/types.h>
+#include <asm/fsl_dma.h>
 #include <asm/fsl_i2c.h>
 #include <asm/fsl_lbc.h>
 
@@ -406,80 +407,9 @@ typedef struct ccsr_l2cache {
  */
 typedef struct ccsr_dma {
 	char	res1[256];
-	uint	mr0;		/* 0x21100 - DMA 0 Mode Register */
-	uint	sr0;		/* 0x21104 - DMA 0 Status Register */
-	char	res2[4];
-	uint	clndar0;	/* 0x2110c - DMA 0 Current Link Descriptor Address Register */
-	uint	satr0;		/* 0x21110 - DMA 0 Source Attributes Register */
-	uint	sar0;		/* 0x21114 - DMA 0 Source Address Register */
-	uint	datr0;		/* 0x21118 - DMA 0 Destination Attributes Register */
-	uint	dar0;		/* 0x2111c - DMA 0 Destination Address Register */
-	uint	bcr0;		/* 0x21120 - DMA 0 Byte Count Register */
-	char	res3[4];
-	uint	nlndar0;	/* 0x21128 - DMA 0 Next Link Descriptor Address Register */
-	char	res4[8];
-	uint	clabdar0;	/* 0x21134 - DMA 0 Current List - Alternate Base Descriptor Address Register */
-	char	res5[4];
-	uint	nlsdar0;	/* 0x2113c - DMA 0 Next List Descriptor Address Register */
-	uint	ssr0;		/* 0x21140 - DMA 0 Source Stride Register */
-	uint	dsr0;		/* 0x21144 - DMA 0 Destination Stride Register */
-	char	res6[56];
-	uint	mr1;		/* 0x21180 - DMA 1 Mode Register */
-	uint	sr1;		/* 0x21184 - DMA 1 Status Register */
-	char	res7[4];
-	uint	clndar1;	/* 0x2118c - DMA 1 Current Link Descriptor Address Register */
-	uint	satr1;		/* 0x21190 - DMA 1 Source Attributes Register */
-	uint	sar1;		/* 0x21194 - DMA 1 Source Address Register */
-	uint	datr1;		/* 0x21198 - DMA 1 Destination Attributes Register */
-	uint	dar1;		/* 0x2119c - DMA 1 Destination Address Register */
-	uint	bcr1;		/* 0x211a0 - DMA 1 Byte Count Register */
-	char	res8[4];
-	uint	nlndar1;	/* 0x211a8 - DMA 1 Next Link Descriptor Address Register */
-	char	res9[8];
-	uint	clabdar1;	/* 0x211b4 - DMA 1 Current List - Alternate Base Descriptor Address Register */
-	char	res10[4];
-	uint	nlsdar1;	/* 0x211bc - DMA 1 Next List Descriptor Address Register */
-	uint	ssr1;		/* 0x211c0 - DMA 1 Source Stride Register */
-	uint	dsr1;		/* 0x211c4 - DMA 1 Destination Stride Register */
-	char	res11[56];
-	uint	mr2;		/* 0x21200 - DMA 2 Mode Register */
-	uint	sr2;		/* 0x21204 - DMA 2 Status Register */
-	char	res12[4];
-	uint	clndar2;	/* 0x2120c - DMA 2 Current Link Descriptor Address Register */
-	uint	satr2;		/* 0x21210 - DMA 2 Source Attributes Register */
-	uint	sar2;		/* 0x21214 - DMA 2 Source Address Register */
-	uint	datr2;		/* 0x21218 - DMA 2 Destination Attributes Register */
-	uint	dar2;		/* 0x2121c - DMA 2 Destination Address Register */
-	uint	bcr2;		/* 0x21220 - DMA 2 Byte Count Register */
-	char	res13[4];
-	uint	nlndar2;	/* 0x21228 - DMA 2 Next Link Descriptor Address Register */
-	char	res14[8];
-	uint	clabdar2;	/* 0x21234 - DMA 2 Current List - Alternate Base Descriptor Address Register */
-	char	res15[4];
-	uint	nlsdar2;	/* 0x2123c - DMA 2 Next List Descriptor Address Register */
-	uint	ssr2;		/* 0x21240 - DMA 2 Source Stride Register */
-	uint	dsr2;		/* 0x21244 - DMA 2 Destination Stride Register */
-	char	res16[56];
-	uint	mr3;		/* 0x21280 - DMA 3 Mode Register */
-	uint	sr3;		/* 0x21284 - DMA 3 Status Register */
-	char	res17[4];
-	uint	clndar3;	/* 0x2128c - DMA 3 Current Link Descriptor Address Register */
-	uint	satr3;		/* 0x21290 - DMA 3 Source Attributes Register */
-	uint	sar3;		/* 0x21294 - DMA 3 Source Address Register */
-	uint	datr3;		/* 0x21298 - DMA 3 Destination Attributes Register */
-	uint	dar3;		/* 0x2129c - DMA 3 Destination Address Register */
-	uint	bcr3;		/* 0x212a0 - DMA 3 Byte Count Register */
-	char	res18[4];
-	uint	nlndar3;	/* 0x212a8 - DMA 3 Next Link Descriptor Address Register */
-	char	res19[8];
-	uint	clabdar3;	/* 0x212b4 - DMA 3 Current List - Alternate Base Descriptor Address Register */
-	char	res20[4];
-	uint	nlsdar3;	/* 0x212bc - DMA 3 Next List Descriptor Address Register */
-	uint	ssr3;		/* 0x212c0 - DMA 3 Source Stride Register */
-	uint	dsr3;		/* 0x212c4 - DMA 3 Destination Stride Register */
-	char	res21[56];
+	struct fsl_dma dma[4];
 	uint	dgsr;		/* 0x21300 - DMA General Status Register */
-	char	res22[11516];
+	char	res2[11516];
 } ccsr_dma_t;
 
 /*
diff --git a/include/asm-ppc/immap_86xx.h b/include/asm-ppc/immap_86xx.h
index 470385f..689c720 100644
--- a/include/asm-ppc/immap_86xx.h
+++ b/include/asm-ppc/immap_86xx.h
@@ -11,6 +11,7 @@
 #define __IMMAP_86xx__
 
 #include <asm/types.h>
+#include <asm/fsl_dma.h>
 #include <asm/fsl_i2c.h>
 
 /* Local-Access Registers and MCM Registers(0x0000-0x2000) */
@@ -386,80 +387,9 @@ typedef struct ccsr_ht {
 /* DMA Registers(0x2_1000-0x2_2000) */
 typedef struct ccsr_dma {
 	char	res1[256];
-	uint	mr0;		/* 0x21100 - DMA 0 Mode Register */
-	uint	sr0;		/* 0x21104 - DMA 0 Status Register */
-	char	res2[4];
-	uint	clndar0;	/* 0x2110c - DMA 0 Current Link Descriptor Address Register */
-	uint	satr0;		/* 0x21110 - DMA 0 Source Attributes Register */
-	uint	sar0;		/* 0x21114 - DMA 0 Source Address Register */
-	uint	datr0;		/* 0x21118 - DMA 0 Destination Attributes Register */
-	uint	dar0;		/* 0x2111c - DMA 0 Destination Address Register */
-	uint	bcr0;		/* 0x21120 - DMA 0 Byte Count Register */
-	char	res3[4];
-	uint	nlndar0;	/* 0x21128 - DMA 0 Next Link Descriptor Address Register */
-	char	res4[8];
-	uint	clabdar0;	/* 0x21134 - DMA 0 Current List - Alternate Base Descriptor Address Register */
-	char	res5[4];
-	uint	nlsdar0;	/* 0x2113c - DMA 0 Next List Descriptor Address Register */
-	uint	ssr0;		/* 0x21140 - DMA 0 Source Stride Register */
-	uint	dsr0;		/* 0x21144 - DMA 0 Destination Stride Register */
-	char	res6[56];
-	uint	mr1;		/* 0x21180 - DMA 1 Mode Register */
-	uint	sr1;		/* 0x21184 - DMA 1 Status Register */
-	char	res7[4];
-	uint	clndar1;	/* 0x2118c - DMA 1 Current Link Descriptor Address Register */
-	uint	satr1;		/* 0x21190 - DMA 1 Source Attributes Register */
-	uint	sar1;		/* 0x21194 - DMA 1 Source Address Register */
-	uint	datr1;		/* 0x21198 - DMA 1 Destination Attributes Register */
-	uint	dar1;		/* 0x2119c - DMA 1 Destination Address Register */
-	uint	bcr1;		/* 0x211a0 - DMA 1 Byte Count Register */
-	char	res8[4];
-	uint	nlndar1;	/* 0x211a8 - DMA 1 Next Link Descriptor Address Register */
-	char	res9[8];
-	uint	clabdar1;	/* 0x211b4 - DMA 1 Current List - Alternate Base Descriptor Address Register */
-	char	res10[4];
-	uint	nlsdar1;	/* 0x211bc - DMA 1 Next List Descriptor Address Register */
-	uint	ssr1;		/* 0x211c0 - DMA 1 Source Stride Register */
-	uint	dsr1;		/* 0x211c4 - DMA 1 Destination Stride Register */
-	char	res11[56];
-	uint	mr2;		/* 0x21200 - DMA 2 Mode Register */
-	uint	sr2;		/* 0x21204 - DMA 2 Status Register */
-	char	res12[4];
-	uint	clndar2;	/* 0x2120c - DMA 2 Current Link Descriptor Address Register */
-	uint	satr2;		/* 0x21210 - DMA 2 Source Attributes Register */
-	uint	sar2;		/* 0x21214 - DMA 2 Source Address Register */
-	uint	datr2;		/* 0x21218 - DMA 2 Destination Attributes Register */
-	uint	dar2;		/* 0x2121c - DMA 2 Destination Address Register */
-	uint	bcr2;		/* 0x21220 - DMA 2 Byte Count Register */
-	char	res13[4];
-	uint	nlndar2;	/* 0x21228 - DMA 2 Next Link Descriptor Address Register */
-	char	res14[8];
-	uint	clabdar2;	/* 0x21234 - DMA 2 Current List - Alternate Base Descriptor Address Register */
-	char	res15[4];
-	uint	nlsdar2;	/* 0x2123c - DMA 2 Next List Descriptor Address Register */
-	uint	ssr2;		/* 0x21240 - DMA 2 Source Stride Register */
-	uint	dsr2;		/* 0x21244 - DMA 2 Destination Stride Register */
-	char	res16[56];
-	uint	mr3;		/* 0x21280 - DMA 3 Mode Register */
-	uint	sr3;		/* 0x21284 - DMA 3 Status Register */
-	char	res17[4];
-	uint	clndar3;	/* 0x2128c - DMA 3 Current Link Descriptor Address Register */
-	uint	satr3;		/* 0x21290 - DMA 3 Source Attributes Register */
-	uint	sar3;		/* 0x21294 - DMA 3 Source Address Register */
-	uint	datr3;		/* 0x21298 - DMA 3 Destination Attributes Register */
-	uint	dar3;		/* 0x2129c - DMA 3 Destination Address Register */
-	uint	bcr3;		/* 0x212a0 - DMA 3 Byte Count Register */
-	char	res18[4];
-	uint	nlndar3;	/* 0x212a8 - DMA 3 Next Link Descriptor Address Register */
-	char	res19[8];
-	uint	clabdar3;	/* 0x212b4 - DMA 3 Current List - Alternate Base Descriptor Address Register */
-	char	res20[4];
-	uint	nlsdar3;	/* 0x212bc - DMA 3 Next List Descriptor Address Register */
-	uint	ssr3;		/* 0x212c0 - DMA 3 Source Stride Register */
-	uint	dsr3;		/* 0x212c4 - DMA 3 Destination Stride Register */
-	char	res21[56];
+	struct fsl_dma dma[4];
 	uint	dgsr;		/* 0x21300 - DMA General Status Register */
-	char	res22[3324];
+	char	res2[3324];
 } ccsr_dma_t;
 
 /* tsec1-4: 24000-28000 */