recently I bought a U-DMA controller card and found that it was not
detected by the latest Linux kernel.
Though I'm a 100% newbie with kernel programming, I managed to make
the kernel detect my controller card. It was quite an easy task,
since the only problem was the chipset version number which could not
be recognised properly. I created a patch to fix the problem.
The patch provides support for the Promise Ultra100Tx2 controller card
(PDC20268 chipset) and works for kernel version 2.4.7.
But apparently there is still a problem with the 20268. The driver reports
an error message: "Mode MASTER Error"
# cat /proc/ide/pdc202xx
PDC20268 Chipset.
------------------------------- General Status ---------------------------------
Burst Mode : enabled
Host Mode : Tri-Stated
Bus Clocking : 100 External
IO pad select : 10 mA
Status Polling Period : 15
Interrupt Check Status Polling Delay : 15
--------------- Primary Channel ---------------- Secondary Channel -------------
enabled enabled
66 Clocking enabled enabled
Mode MASTER Mode MASTER
Error Error
--------------- drive0 --------- drive1 -------- drive0 ---------- drive1 ------
DMA enabled: no no no no
DMA Mode: PIO--- PIO--- PIO--- PIO---
PIO Mode: PIO ? PIO ? PIO ? PIO ?
Besides, DMA is disabled for all drives. What does that mean? In my system
there is a hard drive (Maxtor 4K080H4) attached as drive0 on the primary
channel. As far as I can see, the hard drive is accessible without problems.
I hope, some of you Linux gurus can tell me, what went wrong.
Below I enclosed my patch. It can be installed by the command:
(cd /usr/src/linux; patch -p1 < /somewhere/patchfile)
Best regards
Martin Krause <krause@pissedoff.com>
P.S.: I'm not subscribed to the Linux-kernel mailing list. If you reply to this posting,
please, send me a copy.
diff -urN 2.4.7/drivers/ide/ide-pci.c linux/drivers/ide/ide-pci.c
--- 2.4.7/drivers/ide/ide-pci.c Thu Aug 9 21:39:12 2001
+++ linux/drivers/ide/ide-pci.c Wed Jun 27 23:12:04 2001
@@ -42,7 +42,6 @@
#define DEVID_PDC20262 ((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20262})
#define DEVID_PDC20265 ((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20265})
#define DEVID_PDC20267 ((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20267})
-#define DEVID_PDC20268 ((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268})
#define DEVID_RZ1000 ((ide_pci_devid_t){PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_RZ1000})
#define DEVID_RZ1001 ((ide_pci_devid_t){PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_RZ1001})
#define DEVID_SAMURAI ((ide_pci_devid_t){PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE})
@@ -355,7 +354,6 @@
{DEVID_PDC20262,"PDC20262", PCI_PDC202XX, ATA66_PDC202XX, INIT_PDC202XX, NULL, {{0x50,0x02,0x02}, {0x50,0x04,0x04}}, OFF_BOARD, 48 },
{DEVID_PDC20265,"PDC20265", PCI_PDC202XX, ATA66_PDC202XX, INIT_PDC202XX, NULL, {{0x50,0x02,0x02}, {0x50,0x04,0x04}}, OFF_BOARD, 48 },
{DEVID_PDC20267,"PDC20267", PCI_PDC202XX, ATA66_PDC202XX, INIT_PDC202XX, NULL, {{0x50,0x02,0x02}, {0x50,0x04,0x04}}, OFF_BOARD, 48 },
- {DEVID_PDC20268,"PDC20268", PCI_PDC202XX, ATA66_PDC202XX, INIT_PDC202XX, NULL, {{0x50,0x02,0x02}, {0x50,0x04,0x04}}, OFF_BOARD, 48 },
{DEVID_RZ1000, "RZ1000", NULL, NULL, INIT_RZ1000, NULL, {{0x00,0x00,0x00}, {0x00,0x00,0x00}}, ON_BOARD, 0 },
{DEVID_RZ1001, "RZ1001", NULL, NULL, INIT_RZ1000, NULL, {{0x00,0x00,0x00}, {0x00,0x00,0x00}}, ON_BOARD, 0 },
{DEVID_SAMURAI, "SAMURAI", NULL, NULL, INIT_SAMURAI, NULL, {{0x00,0x00,0x00}, {0x00,0x00,0x00}}, ON_BOARD, 0 },
@@ -403,7 +401,6 @@
case PCI_DEVICE_ID_PROMISE_20262:
case PCI_DEVICE_ID_PROMISE_20265:
case PCI_DEVICE_ID_PROMISE_20267:
- case PCI_DEVICE_ID_PROMISE_20268:
case PCI_DEVICE_ID_ARTOP_ATP850UF:
case PCI_DEVICE_ID_ARTOP_ATP860:
case PCI_DEVICE_ID_ARTOP_ATP860R:
@@ -699,7 +696,6 @@
IDE_PCI_DEVID_EQ(d->devid, DEVID_PDC20262) ||
IDE_PCI_DEVID_EQ(d->devid, DEVID_PDC20265) ||
IDE_PCI_DEVID_EQ(d->devid, DEVID_PDC20267) ||
- IDE_PCI_DEVID_EQ(d->devid, DEVID_PDC20268) ||
IDE_PCI_DEVID_EQ(d->devid, DEVID_AEC6210) ||
IDE_PCI_DEVID_EQ(d->devid, DEVID_AEC6260) ||
IDE_PCI_DEVID_EQ(d->devid, DEVID_AEC6260R) ||
@@ -731,7 +727,6 @@
} else {
ide_setup_dma(hwif, dma_base, 8);
}
- printk("%s: %s Bus-Master DMA base: 0x%lx\n", hwif->name, d->name, dma_base);
} else {
printk("%s: %s Bus-Master DMA disabled (BIOS)\n", hwif->name, d->name);
}
diff -urN 2.4.7/drivers/ide/pdc202xx.c linux/drivers/ide/pdc202xx.c
--- 2.4.7/drivers/ide/pdc202xx.c Thu Aug 9 21:39:12 2001
+++ linux/drivers/ide/pdc202xx.c Wed May 2 01:05:00 2001
@@ -48,8 +48,8 @@
#include "ide_modes.h"
-#define PDC202XX_DEBUG_DRIVE_INFO 1
-#define PDC202XX_DECODE_REGISTER_INFO 1
+#define PDC202XX_DEBUG_DRIVE_INFO 0
+#define PDC202XX_DECODE_REGISTER_INFO 0
#define DISPLAY_PDC202XX_TIMINGS
@@ -132,9 +132,6 @@
pci_read_config_dword(dev, 0x6c, ®6ch);
switch(dev->device) {
- case PCI_DEVICE_ID_PROMISE_20268:
- p += sprintf(p, "\n PDC20268 Chipset.\n");
- break;
case PCI_DEVICE_ID_PROMISE_20267:
p += sprintf(p, "\n PDC20267 Chipset.\n");
break;
@@ -222,7 +219,6 @@
"QUANTUM FIREBALLP LM20.4",
"QUANTUM FIREBALLP KX20.5",
"QUANTUM FIREBALLP LM20.5",
- "MAXTOR 4K080H4",
NULL
};
@@ -517,7 +513,7 @@
byte CLKSPD = IN_BYTE(high_16 + 0x11);
byte udma_33 = ultra ? (inb(high_16 + 0x001f) & 1) : 0;
byte udma_66 = ((eighty_ninty_three(drive)) && udma_33) ? 1 : 0;
- byte udma_100 = (((dev->device == PCI_DEVICE_ID_PROMISE_20265) || (dev->device == PCI_DEVICE_ID_PROMISE_20267) || (dev->device == PCI_DEVICE_ID_PROMISE_20268)) && udma_66) ? 1 : 0;
+ byte udma_100 = (((dev->device == PCI_DEVICE_ID_PROMISE_20265) || (dev->device == PCI_DEVICE_ID_PROMISE_20267)) && udma_66) ? 1 : 0;
/*
* Set the control register to use the 66Mhz system
@@ -761,8 +757,7 @@
if ((dev->device == PCI_DEVICE_ID_PROMISE_20262) ||
(dev->device == PCI_DEVICE_ID_PROMISE_20265) ||
- (dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
- (dev->device == PCI_DEVICE_ID_PROMISE_20268)) {
+ (dev->device == PCI_DEVICE_ID_PROMISE_20267)) {
/*
* software reset - this is required because the bios
* will set UDMA timing on if the hdd supports it. The
@@ -788,7 +783,7 @@
byte irq = 0, irq2 = 0;
pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
pci_read_config_byte(dev, (PCI_INTERRUPT_LINE)|0x80, &irq2); /* 0xbc */
- if ((irq != irq2) && (dev->device != PCI_DEVICE_ID_PROMISE_20265) && (dev->device != PCI_DEVICE_ID_PROMISE_20267) && (dev->device != PCI_DEVICE_ID_PROMISE_20268)) {
+ if ((irq != irq2) && (dev->device != PCI_DEVICE_ID_PROMISE_20265) && (dev->device != PCI_DEVICE_ID_PROMISE_20267)) {
pci_write_config_byte(dev, (PCI_INTERRUPT_LINE)|0x80, irq); /* 0xbc */
printk("%s: pci-config space interrupt mirror fixed.\n", name);
}
@@ -853,8 +848,7 @@
if ((hwif->pci_dev->device == PCI_DEVICE_ID_PROMISE_20262) ||
(hwif->pci_dev->device == PCI_DEVICE_ID_PROMISE_20265) ||
- (hwif->pci_dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
- (hwif->pci_dev->device == PCI_DEVICE_ID_PROMISE_20268)) {
+ (hwif->pci_dev->device == PCI_DEVICE_ID_PROMISE_20267)) {
hwif->resetproc = &pdc202xx_reset;
}
-
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