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-rw-r--r--arch/ppc/syslib/ppc4xx_pic.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/ppc/syslib/ppc4xx_pic.c b/arch/ppc/syslib/ppc4xx_pic.c
index 05686fa7354..40086212b9c 100644
--- a/arch/ppc/syslib/ppc4xx_pic.c
+++ b/arch/ppc/syslib/ppc4xx_pic.c
@@ -110,6 +110,10 @@ static int ppc4xx_pic_get_irq(struct pt_regs *regs)
static void __init ppc4xx_pic_impl_init(void)
{
+#if defined(CONFIG_440GX)
+ /* Disable 440GP compatibility mode if it was enabled in firmware */
+ SDR_WRITE(DCRN_SDR_MFR, SDR_READ(DCRN_SDR_MFR) & ~DCRN_SDR_MFR_PCM);
+#endif
/* Configure Base UIC */
mtdcr(DCRN_UIC_CR(UICB), 0);
mtdcr(DCRN_UIC_TR(UICB), 0);