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authorwdenk <wdenk>2003-09-16 17:20:34 +0000
committerwdenk <wdenk>2003-09-16 17:20:34 +0000
commit373e6bec13b46fdd0aab531e39e56aa883ed12cc (patch)
tree13a29ed4d77b46db11d4126ea0f2d6d8d757c2ce
parent4aeb251f90f3c13b9a3c68c4f296fa871c77f314 (diff)
downloadu-boot-linaro-stable-373e6bec13b46fdd0aab531e39e56aa883ed12cc.tar.gz
Disable MPC5200 bus pipelining as workaround for bus contention
-rw-r--r--cpu/mpc5xxx/pci_mpc5200.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/cpu/mpc5xxx/pci_mpc5200.c b/cpu/mpc5xxx/pci_mpc5200.c
index a54c5f4b2..48f41cfc6 100644
--- 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);