diff options
| author | Vladimir Serbinenko <phcoder@gmail.com> | 2014-11-22 20:36:58 +0100 |
|---|---|---|
| committer | Vladimir Serbinenko <phcoder@gmail.com> | 2014-12-03 21:02:12 +0100 |
| commit | 4aad743434516d6c96f1afe21dd00b631e2c3692 (patch) | |
| tree | f895dcff92712dd51af55fae3d71feeceb644e1b /src/southbridge | |
| parent | a234f45601e6e85a5179ec9cc446f070b86f425b (diff) | |
| download | coreboot-4aad743434516d6c96f1afe21dd00b631e2c3692.tar.xz | |
i82801gx: Enable upper CMOS in bootblock.
Otherwise checksum may not work correctly on early stages.
For compatibility with old bootblocks also enable it early in romstage.
Change-Id: Ie541d71bd76af182e445aa5ef21fe5ba77091159
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7556
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/southbridge')
| -rw-r--r-- | src/southbridge/intel/i82801gx/bootblock.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801gx/bootblock.c b/src/southbridge/intel/i82801gx/bootblock.c index 7b4cd7d57f..d8e03b7639 100644 --- a/src/southbridge/intel/i82801gx/bootblock.c +++ b/src/southbridge/intel/i82801gx/bootblock.c @@ -19,6 +19,7 @@ #include <arch/io.h> #include <cpu/x86/tsc.h> +#include "i82801gx.h" static void store_initial_timestamp(void) { @@ -50,4 +51,10 @@ static void bootblock_southbridge_init(void) store_initial_timestamp(); #endif enable_spi_prefetch(); + + /* Enable RCBA */ + pci_write_config32(PCI_DEV(0, 0x1f, 0), RCBA, DEFAULT_RCBA | 1); + + /* Enable upper 128bytes of CMOS */ + RCBA32(0x3400) = (1 << 2); } |