Pull asus into release branch

[pandora-kernel.git] / drivers / ata / pata_pdc202xx_old.c

diff --git a/drivers/ata/pata_pdc202xx_old.c b/drivers/ata/pata_pdc202xx_old.c
index 3fb4177..0a14933 100644 (file)
--- a/drivers/ata/pata_pdc202xx_old.c
+++ b/drivers/ata/pata_pdc202xx_old.c
@@ -2,13 +2,14 @@
  * pata_pdc202xx_old.c         - Promise PDC202xx PATA for new ATA layer
  *                       (C) 2005 Red Hat Inc
  *                       Alan Cox <alan@redhat.com>
+ *                       (C) 2007 Bartlomiej Zolnierkiewicz
  *
  * Based in part on linux/drivers/ide/pci/pdc202xx_old.c
  *
  * First cut with LBA48/ATAPI
  *
  * TODO:
- *     Channel interlock/reset on both required ?
+ *     Channel interlock/reset on both required
  */
 
 #include <linux/kernel.h>
@@ -21,7 +22,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME "pata_pdc202xx_old"
-#define DRV_VERSION "0.3.0"
+#define DRV_VERSION "0.4.0"
 
 /**
  *     pdc2024x_pre_reset              -       probe begin
@@ -76,7 +77,7 @@ static void pdc2026x_error_handler(struct ata_port *ap)
 static void pdc202xx_configure_piomode(struct ata_port *ap, struct ata_device *adev, int pio)
 {
        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
-       int port = 0x60 + 4 * ap->port_no + 2 * adev->devno;
+       int port = 0x60 + 8 * ap->port_no + 4 * adev->devno;
        static u16 pio_timing[5] = {
                0x0913, 0x050C , 0x0308, 0x0206, 0x0104
        };
@@ -85,7 +86,7 @@ static void pdc202xx_configure_piomode(struct ata_port *ap, struct ata_device *a
        pci_read_config_byte(pdev, port, &r_ap);
        pci_read_config_byte(pdev, port + 1, &r_bp);
        r_ap &= ~0x3F;  /* Preserve ERRDY_EN, SYNC_IN */
-       r_bp &= ~0x07;
+       r_bp &= ~0x1F;
        r_ap |= (pio_timing[pio] >> 8);
        r_bp |= (pio_timing[pio] & 0xFF);
 
@@ -123,7 +124,7 @@ static void pdc202xx_set_piomode(struct ata_port *ap, struct ata_device *adev)
 static void pdc202xx_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 {
        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
-       int port = 0x60 + 4 * ap->port_no + 2 * adev->devno;
+       int port = 0x60 + 8 * ap->port_no + 4 * adev->devno;
        static u8 udma_timing[6][2] = {
                { 0x60, 0x03 }, /* 33 Mhz Clock */
                { 0x40, 0x02 },
@@ -132,12 +133,17 @@ static void pdc202xx_set_dmamode(struct ata_port *ap, struct ata_device *adev)
                { 0x20, 0x01 },
                { 0x20, 0x01 }
        };
+       static u8 mdma_timing[3][2] = {
+               { 0x60, 0x03 },
+               { 0x60, 0x04 },
+               { 0xe0, 0x0f },
+       };
        u8 r_bp, r_cp;
 
        pci_read_config_byte(pdev, port + 1, &r_bp);
        pci_read_config_byte(pdev, port + 2, &r_cp);
 
-       r_bp &= ~0xF0;
+       r_bp &= ~0xE0;
        r_cp &= ~0x0F;
 
        if (adev->dma_mode >= XFER_UDMA_0) {
@@ -147,8 +153,8 @@ static void pdc202xx_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 
        } else {
                int speed = adev->dma_mode - XFER_MW_DMA_0;
-               r_bp |= 0x60;
-               r_cp |= (5 - speed);
+               r_bp |= mdma_timing[speed][0];
+               r_cp |= mdma_timing[speed][1];
        }
        pci_write_config_byte(pdev, port + 1, r_bp);
        pci_write_config_byte(pdev, port + 2, r_cp);
@@ -189,7 +195,7 @@ static void pdc2026x_bmdma_start(struct ata_queued_cmd *qc)
        /* Cases the state machine will not complete correctly without help */
        if ((tf->flags & ATA_TFLAG_LBA48) ||  tf->protocol == ATA_PROT_ATAPI_DMA)
        {
-               len = qc->nbytes;
+               len = qc->nbytes / 2;
 
                if (tf->flags & ATA_TFLAG_WRITE)
                        len |= 0x06000000;