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| author | Lee Leahy <leroy.p.leahy@intel.com> | 2017-01-05 10:23:36 -0800 |
|---|---|---|
| committer | Lee Leahy <leroy.p.leahy@intel.com> | 2017-03-14 23:54:11 +0100 |
| commit | 6edb3140501ad6ad4224e9c79e7d63b8af970466 (patch) | |
| tree | 0dbbb7b5958c7dac6ea99ecfe7dea2c349a8d25f /src | |
| parent | 33efd98cfd92f4e7c2cfc670c718c5b187f11659 (diff) | |
| download | coreboot-6edb3140501ad6ad4224e9c79e7d63b8af970466.tar.xz | |
soc/intel/quark: Return NULL for top_of_memory
Return NULL for top_of_memory when the register has not been set.
TEST=Build and run on Galileo Gen2
Change-Id: If79cac68c2a64aa9bf3be72d3cfc4c73fceef12b
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18802
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: Martin Roth <martinroth@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/quark/memmap.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/soc/intel/quark/memmap.c b/src/soc/intel/quark/memmap.c index 53a1b24094..d67856cc74 100644 --- a/src/soc/intel/quark/memmap.c +++ b/src/soc/intel/quark/memmap.c @@ -26,7 +26,8 @@ void *cbmem_top(void) top_of_memory <<= 16; /* Reserve 64 KiB for RMU firmware */ - top_of_memory -= 0x10000; + if (top_of_memory) + top_of_memory -= 0x10000; /* Return the top of memory */ return (void *)top_of_memory; |