From: Andrew Bradford <andrew.bradf...@kodakalaris.com>
Baytrail physically maps the first 2 GB of SDRAM from 0x0 to 0x7FFFFFFF
and additional SDRAM is mapped from 0x100000000 and up. There is a
physical memory hole from 0x80000000 to 0xFFFFFFFF for other uses.
Because of this, PCI region 3 should only try to use up to the amount of
SDRAM or 0x80000000, which ever is less.
Signed-off-by: Andrew Bradford <andrew.bradf...@kodakalaris.com>
---
v2: limit maximum size to lesser of SDRAM or 0x80000000
---
arch/x86/cpu/baytrail/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/cpu/baytrail/pci.c b/arch/x86/cpu/baytrail/pci.c
index 6c291f9..53475e8 100644
--- a/arch/x86/cpu/baytrail/pci.c
+++ b/arch/x86/cpu/baytrail/pci.c
@@ -39,7 +39,7 @@ void board_pci_setup_hose(struct pci_controller *hose)
pci_set_region(hose->regions + 3,
0,
0,
- gd->ram_size,
+ gd->ram_size < 0x80000000 ? gd->ram_size : 0x80000000;,
PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
hose->region_count = 4;
--
1.9.1
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