Disable MPC5200 bus pipelining as workaround for bus contention

diff --git a/cpu/mpc5xxx/pci_mpc5200.c b/cpu/mpc5xxx/pci_mpc5200.c
index a54c5f4..48f41cf 100644 (file)
--- a/cpu/mpc5xxx/pci_mpc5200.c
+++ b/cpu/mpc5xxx/pci_mpc5200.c
@@ -129,8 +129,10 @@ void pci_mpc5xxx_init (struct pci_controller *hose)
        *(vu_long *)(MPC5XXX_XLBARB + 0x40) &= ~((7 << 8) | (3 << 5));
        *(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (3 << 8) | (3 << 5);
 
+#if 0
        /* Enable piplining */
        *(vu_long *)(MPC5XXX_XLBARB + 0x40) &= ~(1 << 31);
+#endif
        
        /* Disable interrupts from PCI controller */
        *(vu_long *)MPC5XXX_PCI_GSCR &= ~(7 << 12);