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path: root/drivers/ide/pci/slc90e66.c
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Diffstat (limited to 'drivers/ide/pci/slc90e66.c')
-rw-r--r--drivers/ide/pci/slc90e66.c67
1 files changed, 16 insertions, 51 deletions
diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c
index ebac87f7200..fa8df6d4383 100644
--- a/drivers/ide/pci/slc90e66.c
+++ b/drivers/ide/pci/slc90e66.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/ide/pci/slc90e66.c Version 0.16 Jul 14, 2007
+ * linux/drivers/ide/pci/slc90e66.c Version 0.18 Aug 9, 2007
*
* Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
* Copyright (C) 2006-2007 MontaVista Software, Inc. <source@mvista.com>
@@ -21,27 +21,6 @@
#include <asm/io.h>
-static u8 slc90e66_dma_2_pio (u8 xfer_rate) {
- switch(xfer_rate) {
- case XFER_UDMA_4:
- case XFER_UDMA_3:
- case XFER_UDMA_2:
- case XFER_UDMA_1:
- case XFER_UDMA_0:
- case XFER_MW_DMA_2:
- return 4;
- case XFER_MW_DMA_1:
- return 3;
- case XFER_SW_DMA_2:
- return 2;
- case XFER_MW_DMA_0:
- case XFER_SW_DMA_1:
- case XFER_SW_DMA_0:
- default:
- return 0;
- }
-}
-
static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
ide_hwif_t *hwif = HWIF(drive);
@@ -132,26 +111,21 @@ static void slc90e66_set_dma_mode(ide_drive_t *drive, const u8 speed)
pci_write_config_word(dev, 0x4a, reg4a|u_speed);
}
} else {
+ const u8 mwdma_to_pio[] = { 0, 3, 4 };
+ u8 pio;
+
if (reg48 & u_flag)
pci_write_config_word(dev, 0x48, reg48 & ~u_flag);
if (reg4a & a_speed)
pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
- }
-
- slc90e66_set_pio_mode(drive, slc90e66_dma_2_pio(speed));
-}
-static int slc90e66_config_drive_xfer_rate (ide_drive_t *drive)
-{
- drive->init_speed = 0;
-
- if (ide_tune_dma(drive))
- return 0;
-
- if (ide_use_fast_pio(drive))
- ide_set_max_pio(drive);
+ if (speed >= XFER_MW_DMA_0)
+ pio = mwdma_to_pio[speed - XFER_MW_DMA_0];
+ else
+ pio = 2; /* only SWDMA2 is allowed */
- return -1;
+ slc90e66_set_pio_mode(drive, pio);
+ }
}
static void __devinit init_hwif_slc90e66 (ide_hwif_t *hwif)
@@ -159,8 +133,6 @@ static void __devinit init_hwif_slc90e66 (ide_hwif_t *hwif)
u8 reg47 = 0;
u8 mask = hwif->channel ? 0x01 : 0x02; /* bit0:Primary */
- hwif->autodma = 0;
-
if (!hwif->irq)
hwif->irq = hwif->channel ? 15 : 14;
@@ -169,11 +141,11 @@ static void __devinit init_hwif_slc90e66 (ide_hwif_t *hwif)
pci_read_config_byte(hwif->pci_dev, 0x47, &reg47);
- if (!hwif->dma_base) {
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+
+ if (hwif->dma_base == 0)
return;
- }
hwif->atapi_dma = 1;
hwif->ultra_mask = 0x1f;
@@ -183,13 +155,6 @@ static void __devinit init_hwif_slc90e66 (ide_hwif_t *hwif)
if (hwif->cbl != ATA_CBL_PATA40_SHORT)
/* bit[0(1)]: 0:80, 1:40 */
hwif->cbl = (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
-
- hwif->ide_dma_check = &slc90e66_config_drive_xfer_rate;
-
- if (!noautodma)
- hwif->autodma = 1;
- hwif->drives[0].autodma = hwif->autodma;
- hwif->drives[1].autodma = hwif->autodma;
}
static ide_pci_device_t slc90e66_chipset __devinitdata = {
@@ -206,8 +171,8 @@ static int __devinit slc90e66_init_one(struct pci_dev *dev, const struct pci_dev
return ide_setup_pci_device(dev, &slc90e66_chipset);
}
-static struct pci_device_id slc90e66_pci_tbl[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1), 0},
+static const struct pci_device_id slc90e66_pci_tbl[] = {
+ { PCI_VDEVICE(EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1), 0 },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, slc90e66_pci_tbl);