ppc32: Fix incorrect PCI frequency value
PATCH 1/1 ppc32: Fix incorrect PCI frequency value
The time to wait after deasserting PCI_RST has been counted with incorrect value - this patch fixes the issue.
Signed-off-by Vitaly Bordug <[email protected]>
Signed-off-by Kumar Gala <[email protected]>
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arch/ppc/syslib/m82xx_pci.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
applies-to: f571549f6e990531b853304fe9bf74cb488a02ac ac9eb05c322380b1d11a0271e1507428b95ab994
arch/ppc/syslib/m82xx_pci.c +2 -1
@@ -248,7 +248,8 @@ pq2ads_setup_pci(struct pci_controller * pci_div = ( (sccr &SCCR_PCI_MODCK ) ?2 :1 ) * ( ( (sccr &SCCR_PCIDF_MSK ) >>SCCR_PCIDF_SHIFT ) +1 ); freq = (uint)((2 *binfo->bi_cpmfreq)/(pci_div)); - time = (int )666666 /freq; + time = (int )66666666 /freq; +/* due to PCI Local Bus spec, some devices needs to wait such a long time after RST deassertion. More specifically, 0.508s for 66MHz & twice more for 33 */ printk("%s: The PCI bus is %d Mhz.\nWaiting %s after deasserting RST...\n",__FILE__,freq,
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Sincerely,
Vitaly