From 2f284eac283704429f94c828d98a370c4a8f8926 Mon Sep 17 00:00:00 2001 From: Leonid Yegoshin Date: Fri, 17 Jan 2014 13:11:29 +0000 Subject: [PATCH] MIPS: malta: malta-init: Fix System Controller memory mapping for EVA Shift System Controller memory mapping to 0x80000000 Signed-off-by: Leonid Yegoshin Signed-off-by: Markos Chandras --- arch/mips/mti-malta/malta-init.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) 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) -- 2.20.1