pata_it8213: fix it8213_pre_reset() documentation

[safe/jmp/linux-2.6] / drivers / ata / pata_hpt37x.c

diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 9f5189c..4224cfc 100644 (file)
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -24,7 +24,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME       "pata_hpt37x"
-#define DRV_VERSION    "0.6.12"
+#define DRV_VERSION    "0.6.14"
 
 struct hpt_clock {
        u8      xfer_speed;
@@ -411,9 +411,8 @@ static void hpt370_set_piomode(struct ata_port *ap, struct ata_device *adev)
 
        pci_read_config_dword(pdev, addr1, &reg);
        mode = hpt37x_find_mode(ap, adev->pio_mode);
-       mode &= ~0x8000000;     /* No FIFO in PIO */
-       mode &= ~0x30070000;    /* Leave config bits alone */
-       reg &= 0x30070000;      /* Strip timing bits */
+       mode &= 0xCFC3FFFF;     /* Leave DMA bits alone */
+       reg &= ~0xCFC3FFFF;     /* Strip timing bits */
        pci_write_config_dword(pdev, addr1, reg | mode);
 }
 
@@ -430,8 +429,7 @@ static void hpt370_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 {
        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
        u32 addr1, addr2;
-       u32 reg;
-       u32 mode;
+       u32 reg, mode, mask;
        u8 fast;
 
        addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
@@ -443,11 +441,12 @@ static void hpt370_set_dmamode(struct ata_port *ap, struct ata_device *adev)
        fast |= 0x01;
        pci_write_config_byte(pdev, addr2, fast);
 
+       mask = adev->dma_mode < XFER_UDMA_0 ? 0x31C001FF : 0x303C0000;
+
        pci_read_config_dword(pdev, addr1, &reg);
        mode = hpt37x_find_mode(ap, adev->dma_mode);
-       mode |= 0x8000000;      /* FIFO in MWDMA or UDMA */
-       mode &= ~0xC0000000;    /* Leave config bits alone */
-       reg &= 0xC0000000;      /* Strip timing bits */
+       mode &= mask;
+       reg &= ~mask;
        pci_write_config_dword(pdev, addr1, reg | mode);
 }
 
@@ -515,9 +514,8 @@ static void hpt372_set_piomode(struct ata_port *ap, struct ata_device *adev)
        mode = hpt37x_find_mode(ap, adev->pio_mode);
 
        printk("Find mode for %d reports %X\n", adev->pio_mode, mode);
-       mode &= ~0x80000000;    /* No FIFO in PIO */
-       mode &= ~0x30070000;    /* Leave config bits alone */
-       reg &= 0x30070000;      /* Strip timing bits */
+       mode &= 0xCFC3FFFF;     /* Leave DMA bits alone */
+       reg &= ~0xCFC3FFFF;     /* Strip timing bits */
        pci_write_config_dword(pdev, addr1, reg | mode);
 }
 
@@ -534,8 +532,7 @@ static void hpt372_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 {
        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
        u32 addr1, addr2;
-       u32 reg;
-       u32 mode;
+       u32 reg, mode, mask;
        u8 fast;
 
        addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
@@ -546,12 +543,13 @@ static void hpt372_set_dmamode(struct ata_port *ap, struct ata_device *adev)
        fast &= ~0x07;
        pci_write_config_byte(pdev, addr2, fast);
 
+       mask = adev->dma_mode < XFER_UDMA_0 ? 0x31C001FF : 0x303C0000;
+
        pci_read_config_dword(pdev, addr1, &reg);
        mode = hpt37x_find_mode(ap, adev->dma_mode);
        printk("Find mode for DMA %d reports %X\n", adev->dma_mode, mode);
-       mode &= ~0xC0000000;    /* Leave config bits alone */
-       mode |= 0x80000000;     /* FIFO in MWDMA or UDMA */
-       reg &= 0xC0000000;      /* Strip timing bits */
+       mode &= mask;
+       reg &= ~mask;
        pci_write_config_dword(pdev, addr1, reg | mode);
 }
 
@@ -801,9 +799,8 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
        static const int MHz[4] = { 33, 40, 50, 66 };
        void *private_data = NULL;
        const struct ata_port_info *ppi[] = { NULL, NULL };
-
+       u8 rev = dev->revision;
        u8 irqmask;
-       u32 class_rev;
        u8 mcr1;
        u32 freq;
        int prefer_dpll = 1;
@@ -818,19 +815,16 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
        if (rc)
                return rc;
 
-       pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
-       class_rev &= 0xFF;
-
        if (dev->device == PCI_DEVICE_ID_TTI_HPT366) {
                /* May be a later chip in disguise. Check */
                /* Older chips are in the HPT366 driver. Ignore them */
-               if (class_rev < 3)
+               if (rev < 3)
                        return -ENODEV;
                /* N series chips have their own driver. Ignore */
-               if (class_rev == 6)
+               if (rev == 6)
                        return -ENODEV;
 
-               switch(class_rev) {
+               switch(rev) {
                        case 3:
                                ppi[0] = &info_hpt370;
                                chip_table = &hpt370;
@@ -846,28 +840,29 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                                chip_table = &hpt372;
                                break;
                        default:
-                               printk(KERN_ERR "pata_hpt37x: Unknown HPT366 subtype please report (%d).\n", class_rev);
+                               printk(KERN_ERR "pata_hpt37x: Unknown HPT366 "
+                                      "subtype, please report (%d).\n", rev);
                                return -ENODEV;
                }
        } else {
                switch(dev->device) {
                        case PCI_DEVICE_ID_TTI_HPT372:
                                /* 372N if rev >= 2*/
-                               if (class_rev >= 2)
+                               if (rev >= 2)
                                        return -ENODEV;
                                ppi[0] = &info_hpt372;
                                chip_table = &hpt372a;
                                break;
                        case PCI_DEVICE_ID_TTI_HPT302:
                                /* 302N if rev > 1 */
-                               if (class_rev > 1)
+                               if (rev > 1)
                                        return -ENODEV;
                                ppi[0] = &info_hpt372;
                                /* Check this */
                                chip_table = &hpt302;
                                break;
                        case PCI_DEVICE_ID_TTI_HPT371:
-                               if (class_rev > 1)
+                               if (rev > 1)
                                        return -ENODEV;
                                ppi[0] = &info_hpt372;
                                chip_table = &hpt371;