From: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Date: Fri, 17 Jan 2014 13:11:29 +0000 (+0000)
Subject: MIPS: malta: malta-init: Fix System Controller memory mapping for EVA
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2f284eac283704429f94c828d98a370c4a8f8926;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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>
---

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)