Re: [PATCH 1/2] pata_legacy: export functionality to ide
From: Sergei Shtylyov <hidden>
Date: 2008-08-05 14:26:33
Also in:
lkml
Hello. Borislav Petkov wrote:
Avoid probing the io-ports in case an IDE PCI controller is present and it uses the legacy iobases. If we still want to enforce the probing, we do
ide_generic.probe_mask=0x3f
on the kernel command line. The iobase checking code is adapted from drivers/ata/pata_legacy.c
Signed-off-by: Borislav Petkov <redacted>
quoted hunk ↗ jump to hunk
diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c index 8fe8b5b..e9b7b69 100644 --- a/drivers/ide/ide-generic.c +++ b/drivers/ide/ide-generic.c
[...]
quoted hunk ↗ jump to hunk
@@ -100,19 +100,71 @@ static const u16 legacy_bases[] = { 0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160 }; static const int legacy_irqs[] = { 14, 15, 11, 10, 8, 12 }; #endif +
Extra newline...
+static void ide_generic_check_pci_legacy_iobases(int *primary, int *secondary)
+{
+ struct pci_dev *p = NULL;
+ u16 val;
+
+ for_each_pci_dev(p) {
+ int r;
+
+ for (r = 0; r < 6; r++) {
+ if (pci_resource_start(p, r) == 0x1f0)
+ *primary = 1;
+ if (pci_resource_start(p, r) == 0x170)
+ *secondary = 1;
+ }
+
+ /* Cyrix CS5510 pre SFF MWDMA ATA on the bridge */
+ if (p->vendor == 0x1078 && p->device == 0x0000)
+ *primary = *secondary = 1;
+
+ /* Cyrix CS5520 pre SFF MWDMA ATA on the bridge */
+ if (p->vendor == 0x1078 && p->device == 0x0002)
+ *primary = *secondary = 1;
I think the above two if statements should be collapsed into a single one.
+
+ /* Intel MPIIX - PIO ATA on non PCI side of bridge */
+ if (p->vendor == 0x8086 && p->device == 0x1234) {
Also, perhaps it makes sense to #include <linux/pci_ids.h> and use the
macros defined there...
MBR, Sergei