From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: linux-ide@vger.kernel.org
Subject: [PATCH] siimage: fix ->set_pio_mode method to select PIO data transfer
Date: Fri, 13 Jul 2007 23:11:57 +0200 [thread overview]
Message-ID: <200707132311.58022.bzolnier@gmail.com> (raw)
* Remember to select PIO data transfer (with IORDY monitored) in sil_tune_pio()
(->set_pio_mode method) so the controller is always programmed correctly for
PIO transfers (this is important if DMA is not going to be used).
* Don't set DMA/UDMA timings for PIO modes in siimage_tune_chipset().
* Bump driver version.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/pci/siimage.c | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
Index: b/drivers/ide/pci/siimage.c
===================================================================
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/ide/pci/siimage.c Version 1.15 Jun 29 2007
+ * linux/drivers/ide/pci/siimage.c Version 1.16 Jul 13 2007
*
* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
* Copyright (C) 2003 Red Hat <alan@redhat.com>
@@ -185,7 +185,12 @@ static void sil_tune_pio(ide_drive_t *dr
u16 speedp = 0;
unsigned long addr = siimage_seldev(drive, 0x04);
unsigned long tfaddr = siimage_selreg(hwif, 0x02);
+ unsigned long base = (unsigned long)hwif->hwif_data;
u8 tf_pio = pio;
+ u8 addr_mask = hwif->channel ? (hwif->mmio ? 0xF4 : 0x84)
+ : (hwif->mmio ? 0xB4 : 0x80);
+ u8 mode = 0;
+ u8 unit = drive->select.b.unit;
/* trim *taskfile* PIO to the slowest of the master/slave */
if (pair->present) {
@@ -207,6 +212,11 @@ static void sil_tune_pio(ide_drive_t *dr
hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2);
else
hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2);
+
+ mode = hwif->INB(base + addr_mask);
+ mode &= ~(unit ? 0x30 : 0x03);
+ mode |= (unit ? 0x10 : 0x01);
+ hwif->OUTB(mode, base + addr_mask);
} else {
pci_write_config_word(hwif->pci_dev, addr, speedp);
pci_write_config_word(hwif->pci_dev, tfaddr, speedt);
@@ -216,6 +226,11 @@ static void sil_tune_pio(ide_drive_t *dr
if (pio > 2)
speedp |= 0x200;
pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp);
+
+ pci_read_config_byte(hwif->pci_dev, addr_mask, &mode);
+ mode &= ~(unit ? 0x30 : 0x03);
+ mode |= (unit ? 0x10 : 0x01);
+ pci_write_config_byte(hwif->pci_dev, addr_mask, mode);
}
}
@@ -275,8 +290,7 @@ static int siimage_tune_chipset(ide_driv
case XFER_PIO_1:
case XFER_PIO_0:
sil_tune_pio(drive, speed - XFER_PIO_0);
- mode |= ((unit) ? 0x10 : 0x01);
- break;
+ return ide_config_drive_speed(drive, speed);
case XFER_MW_DMA_2:
case XFER_MW_DMA_1:
case XFER_MW_DMA_0:
next reply other threads:[~2007-07-13 21:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-13 21:11 Bartlomiej Zolnierkiewicz [this message]
2007-07-14 17:35 ` [PATCH] siimage: fix ->set_pio_mode method to select PIO data transfer Sergei Shtylyov
2007-07-18 21:20 ` Bartlomiej Zolnierkiewicz
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