* Re: PPC32 - No IDE/ATA devices on new PowerBook
[not found] ` <05700451-DD42-4BBE-9DB2-8705B88548BF@comcast.net>
@ 2005-10-29 0:02 ` Benjamin Herrenschmidt
0 siblings, 0 replies; only message in thread
From: Benjamin Herrenschmidt @ 2005-10-29 0:02 UTC (permalink / raw)
To: Parag Warudkar; +Cc: linuxppc-dev list, linux-kernel
On Fri, 2005-10-28 at 19:24 -0400, Parag Warudkar wrote:
> Thanks. I tried 2.4 kernel and to my surprise it detected the IDE/ATA
> controller! (Although it balked out with errors - read past the end
> of the device or something...).
2.4 used the device-tree exclusively for probing IDE on pmac, while 2.6
uses PCI probing when it's a PCI device. The device-tree method tend to
work even when we don't have the PCI ID, but it's dangerous: the driver
doesn't know the details of the timings for this chip revision etc...
and thus may well do crap. I wouldn't try too much with 2.4.
Can you try this patch ? If you don't have a way to build a patched
kernel, you may find somebody on linuxppc-dev list who can do it for
you.
Index: linux-work/drivers/ide/ppc/pmac.c
===================================================================
--- linux-work.orig/drivers/ide/ppc/pmac.c 2005-09-22 14:06:32.000000000 +1000
+++ linux-work/drivers/ide/ppc/pmac.c 2005-10-29 10:00:03.000000000 +1000
@@ -1664,11 +1664,16 @@
};
static struct pci_device_id pmac_ide_pci_match[] = {
- { PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_ATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- { PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_IPID_ATA100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- { PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_K2_ATA100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_ATA,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_IPID_ATA100,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_K2_ATA100,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_SH_ATA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_IPIDD2_ATA,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
};
static struct pci_driver pmac_ide_pci_driver = {
Index: linux-work/include/linux/pci_ids.h
===================================================================
--- linux-work.orig/include/linux/pci_ids.h 2005-10-06 09:59:14.000000000 +1000
+++ linux-work/include/linux/pci_ids.h 2005-10-29 09:59:06.000000000 +1000
@@ -912,6 +912,7 @@
#define PCI_DEVICE_ID_APPLE_SH_FW 0x0052
#define PCI_DEVICE_ID_APPLE_U3L_AGP 0x0058
#define PCI_DEVICE_ID_APPLE_U3H_AGP 0x0059
+#define PCI_DEVICE_ID_APPLE_IPIDD2_ATA 0x0069
#define PCI_DEVICE_ID_APPLE_TIGON3 0x1645
#define PCI_VENDOR_ID_YAMAHA 0x1073
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