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Commit ffe5415c authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

siimage: fix ->set_pio_mode method to select PIO data transfer 



* 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.

Acked-by: default avatarSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 326d72f4

drivers/ide/pci/siimage.c

+17 −3
Original line number Diff line number Diff line 
/*

 * 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 *drive, u8 pio) 
	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 *drive, u8 pio) 
			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 *drive, u8 pio) 
		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_drive_t *drive, const u8 speed) 
		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: