MIPS: malta: malta-init: Fix System Controller memory mapping for EVA

Shift System Controller memory mapping to 0x80000000

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/arch/mips/mti-malta/malta-init.c b/arch/mips/mti-malta/malta-init.c
index eebb2d1538c6..4f9e44d358b7 100644
--- a/arch/mips/mti-malta/malta-init.c
+++ b/arch/mips/mti-malta/malta-init.c
@@ -244,10 +244,23 @@ mips_pci_controller:
                           MSC01_PCI_SWAP_BYTESWAP << MSC01_PCI_SWAP_MEM_SHF |
                           MSC01_PCI_SWAP_BYTESWAP << MSC01_PCI_SWAP_BAR0_SHF);
 #endif
+#ifndef CONFIG_EVA
                 /* Fix up target memory mapping.  */
                 MSC_READ(MSC01_PCI_BAR0, mask);
                 MSC_WRITE(MSC01_PCI_P2SCMSKL, mask & MSC01_PCI_BAR0_SIZE_MSK);
+#else
+                /*
+                 * Setup the Malta max (2GB) memory for PCI DMA in host bridge
+                 * in transparent addressing mode, starting from 0x80000000.
+                 */
+                mask = PHYS_OFFSET | (1<<3);
+                MSC_WRITE(MSC01_PCI_BAR0, mask);
 
+                mask = PHYS_OFFSET;
+                MSC_WRITE(MSC01_PCI_HEAD4, mask);
+                MSC_WRITE(MSC01_PCI_P2SCMSKL, mask);
+                MSC_WRITE(MSC01_PCI_P2SCMAPL, mask);
+#endif
                 /* Don't handle target retries indefinitely.  */
                 if ((data & MSC01_PCI_CFG_MAXRTRY_MSK) ==
                     MSC01_PCI_CFG_MAXRTRY_MSK)