ide: remove ->dma_{status,command} fields from ide_hwif_t
* Use ->dma_base + offset instead of ->dma_{status,command}
and remove no longer needed ->dma_{status,command}.
While at it:
* Use ATA_DMA_* defines.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index 7a2a7b2..fc163a7 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -128,7 +128,7 @@
static u8 scc_read_sff_dma_status(ide_hwif_t *hwif)
{
- return (u8)in_be32((void *)hwif->dma_status);
+ return (u8)in_be32((void *)(hwif->dma_base + 4));
}
static void scc_ide_insw(unsigned long port, void *addr, u32 count)
@@ -266,14 +266,14 @@
{
ide_hwif_t *hwif = drive->hwif;
u8 unit = (drive->select.b.unit & 0x01);
- u8 dma_stat = scc_ide_inb(hwif->dma_status);
+ u8 dma_stat = scc_ide_inb(hwif->dma_base + 4);
if (on)
dma_stat |= (1 << (5 + unit));
else
dma_stat &= ~(1 << (5 + unit));
- scc_ide_outb(dma_stat, hwif->dma_status);
+ scc_ide_outb(dma_stat, hwif->dma_base + 4);
}
/**
@@ -309,13 +309,13 @@
out_be32((void __iomem *)(hwif->dma_base + 8), hwif->dmatable_dma);
/* specify r/w */
- out_be32((void __iomem *)hwif->dma_command, reading);
+ out_be32((void __iomem *)hwif->dma_base, reading);
- /* read dma_status for INTR & ERROR flags */
- dma_stat = in_be32((void __iomem *)hwif->dma_status);
+ /* read DMA status for INTR & ERROR flags */
+ dma_stat = in_be32((void __iomem *)(hwif->dma_base + 4));
/* clear INTR & ERROR flags */
- out_be32((void __iomem *)hwif->dma_status, dma_stat|6);
+ out_be32((void __iomem *)(hwif->dma_base + 4), dma_stat | 6);
drive->waiting_for_dma = 1;
return 0;
}
@@ -323,10 +323,10 @@
static void scc_dma_start(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- u8 dma_cmd = scc_ide_inb(hwif->dma_command);
+ u8 dma_cmd = scc_ide_inb(hwif->dma_base);
/* start DMA */
- scc_ide_outb(dma_cmd | 1, hwif->dma_command);
+ scc_ide_outb(dma_cmd | 1, hwif->dma_base);
hwif->dma = 1;
wmb();
}
@@ -338,13 +338,13 @@
drive->waiting_for_dma = 0;
/* get DMA command mode */
- dma_cmd = scc_ide_inb(hwif->dma_command);
+ dma_cmd = scc_ide_inb(hwif->dma_base);
/* stop DMA */
- scc_ide_outb(dma_cmd & ~1, hwif->dma_command);
+ scc_ide_outb(dma_cmd & ~1, hwif->dma_base);
/* get DMA status */
- dma_stat = scc_ide_inb(hwif->dma_status);
+ dma_stat = scc_ide_inb(hwif->dma_base + 4);
/* clear the INTR & ERROR bits */
- scc_ide_outb(dma_stat | 6, hwif->dma_status);
+ scc_ide_outb(dma_stat | 6, hwif->dma_base + 4);
/* purge DMA mappings */
ide_destroy_dmatable(drive);
/* verify good DMA status */
@@ -364,6 +364,7 @@
static int scc_dma_end(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
+ void __iomem *dma_base = (void __iomem *)hwif->dma_base;
unsigned long intsts_port = hwif->dma_base + 0x014;
u32 reg;
int dma_stat, data_loss = 0;
@@ -402,7 +403,7 @@
printk(KERN_WARNING "%s: SERROR\n", SCC_PATA_NAME);
out_be32((void __iomem *)intsts_port, INTSTS_SERROR|INTSTS_BMSINT);
- out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS);
+ out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS);
continue;
}
@@ -417,7 +418,7 @@
out_be32((void __iomem *)intsts_port, INTSTS_PRERR|INTSTS_BMSINT);
- out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS);
+ out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS);
continue;
}
@@ -425,12 +426,12 @@
printk(KERN_WARNING "%s: Response Error\n", SCC_PATA_NAME);
out_be32((void __iomem *)intsts_port, INTSTS_RERR|INTSTS_BMSINT);
- out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS);
+ out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS);
continue;
}
if (reg & INTSTS_ICERR) {
- out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS);
+ out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS);
printk(KERN_WARNING "%s: Illegal Configuration\n", SCC_PATA_NAME);
out_be32((void __iomem *)intsts_port, INTSTS_ICERR|INTSTS_BMSINT);
@@ -832,9 +833,6 @@
ports->hwif = hwif;
- hwif->dma_command = hwif->dma_base;
- hwif->dma_status = hwif->dma_base + 0x04;
-
/* PTERADD */
out_be32((void __iomem *)(hwif->dma_base + 0x018), hwif->dmatable_dma);