diff options
Diffstat (limited to 'src/arch/x86/boot/cbmem.c')
| -rw-r--r-- | src/arch/x86/boot/cbmem.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/arch/x86/boot/cbmem.c b/src/arch/x86/boot/cbmem.c index 333ca55ccf..991a3e6f01 100644 --- a/src/arch/x86/boot/cbmem.c +++ b/src/arch/x86/boot/cbmem.c @@ -40,12 +40,18 @@ void get_cbmem_table(uint64_t *base, uint64_t *size) #endif #if !CONFIG_DYNAMIC_CBMEM && !defined(__PRE_RAM__) +void __attribute__((weak)) backup_top_of_ram(uint64_t ramtop) +{ + /* Do nothing. Chipset may have implementation to save ramtop in NVRAM. */ +} + /* This is for compatibility with old boards only. Any new chipset and board * must implement get_top_of_ram() for both romstage and ramstage to support * features like CAR_MIGRATION and CBMEM_CONSOLE. */ void set_top_of_ram(uint64_t ramtop) { + backup_top_of_ram(ramtop); cbmem_late_set_table(ramtop - HIGH_MEMORY_SIZE, HIGH_MEMORY_SIZE); } #endif |