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parisc: Set PCI CLS early in boot.

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Set the PCI CLS early in the boot process to prevent
device failures. In pcibios_set_master use the new
pci_cache_line_size instead of a hard-coded value.

Signed-off-by: Carlos O'Donell <carlos@codesourcery.com>
Reviewed-by: Grant Grundler <grundler@google.com>
Signed-off-by: Kyle McMartin <kyle@redhat.com>
This commit is contained in:
Carlos O'Donell 2010-02-22 23:25:59 +00:00 committed by Kyle McMartin
parent 75ef7cdda2
commit 5fd4514bb3
1 changed files with 5 additions and 2 deletions
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7
arch/parisc/kernel/pci.c
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@ -18,7 +18,6 @@
#include <asm/io.h>
#include <asm/system.h>
#include <asm/cache.h> /* for L1_CACHE_BYTES */
#include <asm/superio.h>
#define DEBUG_RESOURCES 0
@ -123,6 +122,10 @@ static int __init pcibios_init(void)
} else {
printk(KERN_WARNING "pci_bios != NULL but init() is!\n");
}
/* Set the CLS for PCI as early as possible. */
pci_cache_line_size = pci_dfl_cache_line_size;
return 0;
}
@ -171,7 +174,7 @@ void pcibios_set_master(struct pci_dev *dev)
** upper byte is PCI_LATENCY_TIMER.
*/
pci_write_config_word(dev, PCI_CACHE_LINE_SIZE,
(0x80 << 8) | (L1_CACHE_BYTES / sizeof(u32)));
(0x80 << 8) | pci_cache_line_size);
}