MPC5200: enable snooping of DMA transactions on XLB even if no PCI

is configured; othrwise DMA accesses aren't cache coherent which
causes for example USB to fail.

CHANGELOG

@@ -2,6 +2,10 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* MPC5200: enable snooping of DMA transactions on XLB even if no PCI
+  is configured; othrwise DMA accesses aren't cache coherent which
+  causes for example USB to fail.
+
 * Some code cleanup
 
 * Fix dbau1x00 boards broken by dbau1550 patch

cpu/mpc5xxx/cpu_init.c

@@ -152,6 +152,10 @@ void cpu_init_f (void)
 	/* enable timebase */
 	*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (1 << 13);
 
+	/* Enable snooping for RAM */
+	*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (1 << 15);
+	*(vu_long *)(MPC5XXX_XLBARB + 0x70) = CFG_SDRAM_BASE | 0x1d;
+
 # if defined(CFG_IPBSPEED_133)
 	/* Motorola reports IPB should better run at 133 MHz. */
 	*(vu_long *)MPC5XXX_ADDECR |= 1;

cpu/mpc5xxx/pci_mpc5200.c

@@ -135,10 +135,6 @@ void pci_mpc5xxx_init (struct pci_controller *hose)
 	*(vu_long *)MPC5XXX_PCI_BAR1 = CONFIG_PCI_MEMORY_BUS | (1 << 3);
 	*(vu_long *)MPC5XXX_PCI_TBATR1 = CONFIG_PCI_MEMORY_PHYS | 1;
 
-	/* Enable snooping for RAM */
-	*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (1 << 15);
-	*(vu_long *)(MPC5XXX_XLBARB + 0x70) = CONFIG_PCI_MEMORY_PHYS | 0x1d;
-
 	/* Park XLB on PCI */
 	*(vu_long *)(MPC5XXX_XLBARB + 0x40) &= ~((7 << 8) | (3 << 5));
 	*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (3 << 8) | (3 << 5);