add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/mips/pci/pci-bcm63xx.c
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..
@@ -221,7 +221,7 @@
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 	 * a spinlock for each io access, so this is currently kind of
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 	 * broken on SMP.
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 	 */
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-	pci_iospace_start = ioremap_nocache(BCM_PCI_IO_BASE_PA, 4);
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+	pci_iospace_start = ioremap(BCM_PCI_IO_BASE_PA, 4);
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 	if (!pci_iospace_start)
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 		return -ENOMEM;
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