From: Duncan Laurie dlaurie@chromium.org
U-boot is unable to actually use that memory and it can cause problems with relocation if it tries to.
Signed-off-by: Duncan Laurie dlaurie@chromium.org Signed-off-by: Simon Glass sjg@chromium.org --- arch/x86/cpu/coreboot/sdram.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/x86/cpu/coreboot/sdram.c b/arch/x86/cpu/coreboot/sdram.c index 93dccb8..5d3da99 100644 --- a/arch/x86/cpu/coreboot/sdram.c +++ b/arch/x86/cpu/coreboot/sdram.c @@ -60,6 +60,10 @@ int dram_init_f(void) struct memrange *memrange = &lib_sysinfo.memrange[i]; unsigned long long end = memrange->base + memrange->size;
+ /* Ignore memory over 4GB, we can't use it. */ + if (memrange->base > 0xffffffff) + continue; + if (memrange->type == CB_MEM_RAM && end > ram_size) ram_size = end; }