Allow hpt3x2n_pci_clock() to calculate the average f_CNT register value iff HighPoint BIOS hasn't saved one, just like the 'pata_hpt37x' driver (reading the full 16-bit register, unlike what that driver does), so that this driver would work correctly on e.g. non-x86 machine with 66 MHz PCI. I'm not sure why Alan has only done this in one driver and not the other... Signed-off-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx> --- The patch is against the recent Linus' tree plus the two patches I posted before: http://marc.info/?l=linux-ide&m=129356208121192 http://marc.info/?l=linux-ide&m=129330632207779 drivers/ata/pata_hpt3x2n.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) Index: linux-2.6/drivers/ata/pata_hpt3x2n.c =================================================================== --- linux-2.6.orig/drivers/ata/pata_hpt3x2n.c +++ linux-2.6/drivers/ata/pata_hpt3x2n.c @@ -25,7 +25,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_hpt3x2n" -#define DRV_VERSION "0.3.11" +#define DRV_VERSION "0.3.12" enum { HPT_PCI_FAST = (1 << 31), @@ -413,8 +413,19 @@ static int hpt3x2n_pci_clock(struct pci_ fcnt = inl(iobase + 0x90); /* Not PCI readable for some chips */ if ((fcnt >> 12) != 0xABCDE) { - printk(KERN_WARNING "hpt3xn: BIOS clock data not set.\n"); - return 33; /* Not BIOS set */ + int i; + u16 sr; + u32 total = 0; + + printk(KERN_WARNING "pata_hpt3x2n: BIOS clock data not set.\n"); + + /* This is the process the HPT371 BIOS is reported to use */ + for (i = 0; i < 128; i++) { + pci_read_config_word(pdev, 0x78, &sr); + total += sr & 0x1FF; + udelay(15); + } + fcnt = total / 128; } fcnt &= 0x1FF; -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
