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

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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>
This commit is contained in:
Peter Tyser 2009-05-21 12:09:59 -05:00 committed by Kumar Gala
parent 3bd8e532b5
commit b1f12650d3
5 changed files with 89 additions and 172 deletions
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31
cpu/mpc85xx/cpu.c
View file

@ -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();
}

27
cpu/mpc86xx/cpu.c
View file

@ -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();
}

51
include/asm-ppc/fsl_dma.h Normal file
View file

@ -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_ */

76
include/asm-ppc/immap_85xx.h
View file

@ -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;
/*

76
include/asm-ppc/immap_86xx.h
View file

@ -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 */