26 lines
664 B
Diff
26 lines
664 B
Diff
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--- a/arch/powerpc/platforms/40x/kilauea.c
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+++ b/arch/powerpc/platforms/40x/kilauea.c
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@@ -21,6 +21,8 @@
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#include <asm/uic.h>
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#include <asm/pci-bridge.h>
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#include <asm/ppc4xx.h>
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+#include <asm/dcr.h>
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+#include <asm/dcr-regs.h>
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static __initdata struct of_device_id kilauea_of_bus[] = {
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{ .compatible = "ibm,plb4", },
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@@ -46,6 +48,13 @@
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ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
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+ /*
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+ * 405EX(r) has SDR0_MFR[E0CS/E1CS] set after reset. This selects
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+ * the internal loopback mode. Clear these bits so that both EMACs
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+ * don't use loopback mode as deafult.
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+ */
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+ mtdcri(SDR0, SDR0_MFR, mfdcri(SDR0, SDR0_MFR) & ~0x0c000000);
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+
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return 1;
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}
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