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MIPS, IDE: Alchem, au1xxx-ide: Remove pb1200/db1200 header dep 

au1xxx-ide uses defines from the pb1200/db1200 headers:
get DBDMA ID through platform resource information,
hardcode register spacing.  The only 2 users of this driver (and
the only boards it can really work on realiably) use the same
register layout.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Cc: linux-ide@vger.kernel.org
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: linux-ide@vger.kernel.org
Acked-by: David S. Miller <davem@davemloft.net>
Patchwork: https://patchwork.linux-mips.org/patch/2716/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Manuel Lauss 2011-08-18 11:11:58 +02:00 committed by Ralf Baechle
parent 7517de3486
commit d4f07ae748
6 changed files with 40 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/mips/alchemy/devboards/db1200/platform.c
View File

@ -213,7 +213,12 @@ static struct resource db1200_ide_res[] = {
.start = DB1200_IDE_INT,
.end = DB1200_IDE_INT,
.flags = IORESOURCE_IRQ,
}
},
[2] = {
.start = DSCR_CMD0_DMA_REQ1,
.end = DSCR_CMD0_DMA_REQ1,
.flags = IORESOURCE_DMA,
},
};
static u64 ide_dmamask = DMA_BIT_MASK(32);

8
arch/mips/alchemy/devboards/pb1200/platform.c
View File

@ -26,6 +26,7 @@
#include <asm/mach-au1x00/au1xxx.h>
#include <asm/mach-au1x00/au1100_mmc.h>
#include <asm/mach-au1x00/au1xxx_dbdma.h>
#include <asm/mach-db1x00/bcsr.h>
#include "../platform.h"
@ -115,7 +116,12 @@ static struct resource ide_resources[] = {
.start = IDE_INT,
.end = IDE_INT,
.flags = IORESOURCE_IRQ
}
},
[2] = {
.start = DSCR_CMD0_DMA_REQ1,
.end = DSCR_CMD0_DMA_REQ1,
.flags = IORESOURCE_DMA,
},
};
static u64 ide_dmamask = DMA_BIT_MASK(32);

1
arch/mips/include/asm/mach-au1x00/au1xxx_ide.h
View File

@ -58,6 +58,7 @@ typedef struct {
#endif
int irq;
u32 regbase;
int ddma_id;
} _auide_hwif;
/******************************************************************************/

2
arch/mips/include/asm/mach-db1x00/db1200.h
View File

@ -46,8 +46,6 @@
#define IDE_PHYS_ADDR 0x18800000
#define IDE_REG_SHIFT 5
#define IDE_DDMA_REQ DSCR_CMD0_DMA_REQ1
#define IDE_RQSIZE 128
#define DB1200_IDE_PHYS_ADDR IDE_PHYS_ADDR
#define DB1200_IDE_PHYS_LEN (16 << IDE_REG_SHIFT)

2
arch/mips/include/asm/mach-pb1x00/pb1200.h
View File

@ -76,8 +76,6 @@
#define IDE_REG_SHIFT 5
#define IDE_PHYS_LEN (16 << IDE_REG_SHIFT)
#define IDE_INT PB1200_IDE_INT
#define IDE_DDMA_REQ DSCR_CMD0_DMA_REQ1
#define IDE_RQSIZE 128
#define NAND_PHYS_ADDR 0x1C000000

44
drivers/ide/au1xxx-ide.c
View File

@ -43,6 +43,10 @@
#define DRV_NAME "au1200-ide"
#define DRV_AUTHOR "Enrico Walther <enrico.walther@amd.com> / Pete Popov <ppopov@embeddedalley.com>"
#ifndef IDE_REG_SHIFT
#define IDE_REG_SHIFT 5
#endif
/* enable the burstmode in the dbdma */
#define IDE_AU1XXX_BURSTMODE 1
@ -317,10 +321,11 @@ static void auide_ddma_rx_callback(int irq, void *param)
}
#endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */
static void auide_init_dbdma_dev(dbdev_tab_t *dev, u32 dev_id, u32 tsize, u32 devwidth, u32 flags)
static void auide_init_dbdma_dev(dbdev_tab_t *dev, u32 dev_id, u32 tsize,
u32 devwidth, u32 flags, u32 regbase)
{
dev->dev_id = dev_id;
dev->dev_physaddr = (u32)IDE_PHYS_ADDR;
dev->dev_physaddr = CPHYSADDR(regbase);
dev->dev_intlevel = 0;
dev->dev_intpolarity = 0;
dev->dev_tsize = tsize;
@ -344,7 +349,7 @@ static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
dbdev_tab_t source_dev_tab, target_dev_tab;
u32 dev_id, tsize, devwidth, flags;
dev_id = IDE_DDMA_REQ;
dev_id = hwif->ddma_id;
tsize = 8; /* 1 */
devwidth = 32; /* 16 */
@ -356,20 +361,17 @@ static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
#endif
/* setup dev_tab for tx channel */
auide_init_dbdma_dev( &source_dev_tab,
dev_id,
tsize, devwidth, DEV_FLAGS_OUT | flags);
auide_init_dbdma_dev(&source_dev_tab, dev_id, tsize, devwidth,
DEV_FLAGS_OUT | flags, auide->regbase);
auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
auide_init_dbdma_dev( &source_dev_tab,
dev_id,
tsize, devwidth, DEV_FLAGS_IN | flags);
auide_init_dbdma_dev(&source_dev_tab, dev_id, tsize, devwidth,
DEV_FLAGS_IN | flags, auide->regbase);
auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
/* We also need to add a target device for the DMA */
auide_init_dbdma_dev( &target_dev_tab,
(u32)DSCR_CMD0_ALWAYS,
tsize, devwidth, DEV_FLAGS_ANYUSE);
auide_init_dbdma_dev(&target_dev_tab, (u32)DSCR_CMD0_ALWAYS, tsize,
devwidth, DEV_FLAGS_ANYUSE, auide->regbase);
auide->target_dev_id = au1xxx_ddma_add_device(&target_dev_tab);
/* Get a channel for TX */
@ -411,14 +413,12 @@ static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
#endif
/* setup dev_tab for tx channel */
auide_init_dbdma_dev( &source_dev_tab,
(u32)DSCR_CMD0_ALWAYS,
8, 32, DEV_FLAGS_OUT | flags);
auide_init_dbdma_dev(&source_dev_tab, (u32)DSCR_CMD0_ALWAYS, 8, 32,
DEV_FLAGS_OUT | flags, auide->regbase);
auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
auide_init_dbdma_dev( &source_dev_tab,
(u32)DSCR_CMD0_ALWAYS,
8, 32, DEV_FLAGS_IN | flags);
auide_init_dbdma_dev(&source_dev_tab, (u32)DSCR_CMD0_ALWAYS, 8, 32,
DEV_FLAGS_IN | flags, auide->regbase);
auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
/* Get a channel for TX */
@ -540,6 +540,14 @@ static int au_ide_probe(struct platform_device *dev)
goto out;
}
res = platform_get_resource(dev, IORESOURCE_DMA, 0);
if (!res) {
pr_debug("%s: no DDMA ID resource\n", DRV_NAME);
ret = -ENODEV;
goto out;
}
ahwif->ddma_id = res->start;
memset(&hw, 0, sizeof(hw));
auide_setup_ports(&hw, ahwif);
hw.irq = ahwif->irq;