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path: root/drivers/ide/pci/via82cxxx.c
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Diffstat (limited to 'drivers/ide/pci/via82cxxx.c')
-rw-r--r--drivers/ide/pci/via82cxxx.c132
1 files changed, 61 insertions, 71 deletions
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index a508550c409..49bd1c645fb 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -1,6 +1,6 @@
/*
*
- * Version 3.38
+ * Version 3.40
*
* VIA IDE driver for Linux. Supported southbridges:
*
@@ -9,6 +9,7 @@
* vt8235, vt8237, vt8237a
*
* Copyright (c) 2000-2002 Vojtech Pavlik
+ * Copyright (c) 2007 Bartlomiej Zolnierkiewicz
*
* Based on the work of:
* Michel Aubry
@@ -41,8 +42,6 @@
#include "ide-timing.h"
-#define DISPLAY_VIA_TIMINGS
-
#define VIA_IDE_ENABLE 0x40
#define VIA_IDE_CONFIG 0x41
#define VIA_FIFO_CONFIG 0x43
@@ -54,18 +53,12 @@
#define VIA_ADDRESS_SETUP 0x4c
#define VIA_UDMA_TIMING 0x50
-#define VIA_UDMA 0x007
-#define VIA_UDMA_NONE 0x000
-#define VIA_UDMA_33 0x001
-#define VIA_UDMA_66 0x002
-#define VIA_UDMA_100 0x003
-#define VIA_UDMA_133 0x004
-#define VIA_BAD_PREQ 0x010 /* Crashes if PREQ# till DDACK# set */
-#define VIA_BAD_CLK66 0x020 /* 66 MHz clock doesn't work correctly */
-#define VIA_SET_FIFO 0x040 /* Needs to have FIFO split set */
-#define VIA_NO_UNMASK 0x080 /* Doesn't work with IRQ unmasking on */
-#define VIA_BAD_ID 0x100 /* Has wrong vendor ID (0x1107) */
-#define VIA_BAD_AST 0x200 /* Don't touch Address Setup Timing */
+#define VIA_BAD_PREQ 0x01 /* Crashes if PREQ# till DDACK# set */
+#define VIA_BAD_CLK66 0x02 /* 66 MHz clock doesn't work correctly */
+#define VIA_SET_FIFO 0x04 /* Needs to have FIFO split set */
+#define VIA_NO_UNMASK 0x08 /* Doesn't work with IRQ unmasking on */
+#define VIA_BAD_ID 0x10 /* Has wrong vendor ID (0x1107) */
+#define VIA_BAD_AST 0x20 /* Don't touch Address Setup Timing */
/*
* VIA SouthBridge chips.
@@ -76,36 +69,37 @@ static struct via_isa_bridge {
u16 id;
u8 rev_min;
u8 rev_max;
- u16 flags;
+ u8 udma_mask;
+ u8 flags;
} via_isa_bridges[] = {
- { "cx700", PCI_DEVICE_ID_VIA_CX700, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
- { "vt8237s", PCI_DEVICE_ID_VIA_8237S, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
- { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
- { "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
- { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
- { "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
- { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
- { "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
- { "vt8233c", PCI_DEVICE_ID_VIA_8233C_0, 0x00, 0x2f, VIA_UDMA_100 },
- { "vt8233", PCI_DEVICE_ID_VIA_8233_0, 0x00, 0x2f, VIA_UDMA_100 },
- { "vt8231", PCI_DEVICE_ID_VIA_8231, 0x00, 0x2f, VIA_UDMA_100 },
- { "vt82c686b", PCI_DEVICE_ID_VIA_82C686, 0x40, 0x4f, VIA_UDMA_100 },
- { "vt82c686a", PCI_DEVICE_ID_VIA_82C686, 0x10, 0x2f, VIA_UDMA_66 },
- { "vt82c686", PCI_DEVICE_ID_VIA_82C686, 0x00, 0x0f, VIA_UDMA_33 | VIA_BAD_CLK66 },
- { "vt82c596b", PCI_DEVICE_ID_VIA_82C596, 0x10, 0x2f, VIA_UDMA_66 },
- { "vt82c596a", PCI_DEVICE_ID_VIA_82C596, 0x00, 0x0f, VIA_UDMA_33 | VIA_BAD_CLK66 },
- { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x47, 0x4f, VIA_UDMA_33 | VIA_SET_FIFO },
- { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x40, 0x46, VIA_UDMA_33 | VIA_SET_FIFO | VIA_BAD_PREQ },
- { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x30, 0x3f, VIA_UDMA_33 | VIA_SET_FIFO },
- { "vt82c586a", PCI_DEVICE_ID_VIA_82C586_0, 0x20, 0x2f, VIA_UDMA_33 | VIA_SET_FIFO },
- { "vt82c586", PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f, VIA_UDMA_NONE | VIA_SET_FIFO },
- { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK },
- { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID },
+ { "cx700", PCI_DEVICE_ID_VIA_CX700, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
+ { "vt8237s", PCI_DEVICE_ID_VIA_8237S, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
+ { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
+ { "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
+ { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
+ { "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
+ { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
+ { "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
+ { "vt8233c", PCI_DEVICE_ID_VIA_8233C_0, 0x00, 0x2f, ATA_UDMA5, },
+ { "vt8233", PCI_DEVICE_ID_VIA_8233_0, 0x00, 0x2f, ATA_UDMA5, },
+ { "vt8231", PCI_DEVICE_ID_VIA_8231, 0x00, 0x2f, ATA_UDMA5, },
+ { "vt82c686b", PCI_DEVICE_ID_VIA_82C686, 0x40, 0x4f, ATA_UDMA5, },
+ { "vt82c686a", PCI_DEVICE_ID_VIA_82C686, 0x10, 0x2f, ATA_UDMA4, },
+ { "vt82c686", PCI_DEVICE_ID_VIA_82C686, 0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 },
+ { "vt82c596b", PCI_DEVICE_ID_VIA_82C596, 0x10, 0x2f, ATA_UDMA4, },
+ { "vt82c596a", PCI_DEVICE_ID_VIA_82C596, 0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 },
+ { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x47, 0x4f, ATA_UDMA2, VIA_SET_FIFO },
+ { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x40, 0x46, ATA_UDMA2, VIA_SET_FIFO | VIA_BAD_PREQ },
+ { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x30, 0x3f, ATA_UDMA2, VIA_SET_FIFO },
+ { "vt82c586a", PCI_DEVICE_ID_VIA_82C586_0, 0x20, 0x2f, ATA_UDMA2, VIA_SET_FIFO },
+ { "vt82c586", PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f, 0x00, VIA_SET_FIFO },
+ { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, 0x00, VIA_SET_FIFO | VIA_NO_UNMASK },
+ { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, 0x00, VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID },
{ NULL }
};
static unsigned int via_clock;
-static char *via_dma[] = { "MWDMA16", "UDMA33", "UDMA66", "UDMA100", "UDMA133" };
+static char *via_dma[] = { "16", "25", "33", "44", "66", "100", "133" };
struct via82cxxx_dev
{
@@ -140,12 +134,12 @@ static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing)
pci_write_config_byte(dev, VIA_DRIVE_TIMING + (3 - dn),
((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1));
- switch (vdev->via_config->flags & VIA_UDMA) {
- case VIA_UDMA_33: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break;
- case VIA_UDMA_66: t = timing->udma ? (0xe8 | (FIT(timing->udma, 2, 9) - 2)) : 0x0f; break;
- case VIA_UDMA_100: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
- case VIA_UDMA_133: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
- default: return;
+ switch (vdev->via_config->udma_mask) {
+ case ATA_UDMA2: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break;
+ case ATA_UDMA4: t = timing->udma ? (0xe8 | (FIT(timing->udma, 2, 9) - 2)) : 0x0f; break;
+ case ATA_UDMA5: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
+ case ATA_UDMA6: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
+ default: return;
}
pci_write_config_byte(dev, VIA_UDMA_TIMING + (3 - dn), t);
@@ -173,12 +167,12 @@ static int via_set_drive(ide_drive_t *drive, u8 speed)
T = 1000000000 / via_clock;
- switch (vdev->via_config->flags & VIA_UDMA) {
- case VIA_UDMA_33: UT = T; break;
- case VIA_UDMA_66: UT = T/2; break;
- case VIA_UDMA_100: UT = T/3; break;
- case VIA_UDMA_133: UT = T/4; break;
- default: UT = T;
+ switch (vdev->via_config->udma_mask) {
+ case ATA_UDMA2: UT = T; break;
+ case ATA_UDMA4: UT = T/2; break;
+ case ATA_UDMA5: UT = T/3; break;
+ case ATA_UDMA6: UT = T/4; break;
+ default: UT = T;
}
ide_timing_compute(drive, speed, &t, T, UT);
@@ -208,8 +202,7 @@ static int via_set_drive(ide_drive_t *drive, u8 speed)
static void via82cxxx_tune_drive(ide_drive_t *drive, u8 pio)
{
if (pio == 255) {
- via_set_drive(drive,
- ide_find_best_mode(drive, XFER_PIO | XFER_EPIO));
+ via_set_drive(drive, ide_find_best_pio_mode(drive));
return;
}
@@ -226,16 +219,10 @@ static void via82cxxx_tune_drive(ide_drive_t *drive, u8 pio)
static int via82cxxx_ide_dma_check (ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
- struct via82cxxx_dev *vdev = pci_get_drvdata(hwif->pci_dev);
- u16 w80 = hwif->udma_four;
+ u8 speed = ide_max_dma_mode(drive);
- u16 speed = ide_find_best_mode(drive,
- XFER_PIO | XFER_EPIO | XFER_SWDMA | XFER_MWDMA |
- (vdev->via_config->flags & VIA_UDMA ? XFER_UDMA : 0) |
- (w80 && (vdev->via_config->flags & VIA_UDMA) >= VIA_UDMA_66 ? XFER_UDMA_66 : 0) |
- (w80 && (vdev->via_config->flags & VIA_UDMA) >= VIA_UDMA_100 ? XFER_UDMA_100 : 0) |
- (w80 && (vdev->via_config->flags & VIA_UDMA) >= VIA_UDMA_133 ? XFER_UDMA_133 : 0));
+ if (speed == 0)
+ speed = ide_find_best_pio_mode(drive);
via_set_drive(drive, speed);
@@ -272,8 +259,8 @@ static void __devinit via_cable_detect(struct via82cxxx_dev *vdev, u32 u)
{
int i;
- switch (vdev->via_config->flags & VIA_UDMA) {
- case VIA_UDMA_66:
+ switch (vdev->via_config->udma_mask) {
+ case ATA_UDMA4:
for (i = 24; i >= 0; i -= 8)
if (((u >> (i & 16)) & 8) &&
((u >> i) & 0x20) &&
@@ -286,7 +273,7 @@ static void __devinit via_cable_detect(struct via82cxxx_dev *vdev, u32 u)
}
break;
- case VIA_UDMA_100:
+ case ATA_UDMA5:
for (i = 24; i >= 0; i -= 8)
if (((u >> i) & 0x10) ||
(((u >> i) & 0x20) &&
@@ -298,7 +285,7 @@ static void __devinit via_cable_detect(struct via82cxxx_dev *vdev, u32 u)
}
break;
- case VIA_UDMA_133:
+ case ATA_UDMA6:
for (i = 24; i >= 0; i -= 8)
if (((u >> i) & 0x10) ||
(((u >> i) & 0x20) &&
@@ -353,7 +340,7 @@ static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const
via_cable_detect(vdev, u);
- if ((via_config->flags & VIA_UDMA) == VIA_UDMA_66) {
+ if (via_config->udma_mask == ATA_UDMA4) {
/* Enable Clk66 */
pci_write_config_dword(dev, VIA_UDMA_TIMING, u|0x80008);
} else if (via_config->flags & VIA_BAD_CLK66) {
@@ -416,10 +403,12 @@ static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const
*/
pci_read_config_byte(isa, PCI_REVISION_ID, &t);
- printk(KERN_INFO "VP_IDE: VIA %s (rev %02x) IDE %s "
+ printk(KERN_INFO "VP_IDE: VIA %s (rev %02x) IDE %sDMA%s "
"controller on pci%s\n",
via_config->name, t,
- via_dma[via_config->flags & VIA_UDMA],
+ via_config->udma_mask ? "U" : "MW",
+ via_dma[via_config->udma_mask ?
+ (fls(via_config->udma_mask) - 1) : 0],
pci_name(dev));
pci_dev_put(isa);
@@ -454,7 +443,8 @@ static void __devinit init_hwif_via82cxxx(ide_hwif_t *hwif)
return;
hwif->atapi_dma = 1;
- hwif->ultra_mask = 0x7f;
+
+ hwif->ultra_mask = vdev->via_config->udma_mask;
hwif->mwdma_mask = 0x07;
hwif->swdma_mask = 0x07;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-04 07:24:16 +0000