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authorVitaly Bordug <vbordug@ru.mvista.com>2005-12-01 03:51:15 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2005-12-01 18:48:56 -0500
commit42ea0d037860690dde07a015d3473a17da35f74a (patch)
tree02f10934ab3022259880f3118db2f60ce1c1fa38 /arch/ppc
parent00c1bd54d8c7b6210530cdbb3508125a0bf4a32b (diff)
[PATCH] 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 <vbordug@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc')
-rw-r--r--arch/ppc/syslib/m82xx_pci.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/ppc/syslib/m82xx_pci.c b/arch/ppc/syslib/m82xx_pci.c
index 1d1c3956c1ae..1941a8c7ca9a 100644
--- a/arch/ppc/syslib/m82xx_pci.c
+++ b/arch/ppc/syslib/m82xx_pci.c
@@ -248,7 +248,8 @@ pq2ads_setup_pci(struct pci_controller *hose)
248 pci_div = ( (sccr & SCCR_PCI_MODCK) ? 2 : 1) * 248 pci_div = ( (sccr & SCCR_PCI_MODCK) ? 2 : 1) *
249 ( ( (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT) + 1); 249 ( ( (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT) + 1);
250 freq = (uint)((2*binfo->bi_cpmfreq)/(pci_div)); 250 freq = (uint)((2*binfo->bi_cpmfreq)/(pci_div));
251 time = (int)666666/freq; 251 time = (int)66666666/freq;
252
252 /* due to PCI Local Bus spec, some devices needs to wait such a long 253 /* due to PCI Local Bus spec, some devices needs to wait such a long
253 time after RST deassertion. More specifically, 0.508s for 66MHz & twice more for 33 */ 254 time after RST deassertion. More specifically, 0.508s for 66MHz & twice more for 33 */
254 printk("%s: The PCI bus is %d Mhz.\nWaiting %s after deasserting RST...\n",__FILE__,freq, 255 printk("%s: The PCI bus is %d Mhz.\nWaiting %s after deasserting RST...\n",__FILE__,freq,