UPSTREAM: include/device/early_smbus.h: Declare smbus write function

Add declaration for smbus write. Early smbus access also needs smbus
write function specially to read spd for DDR4 wherein page has to be
switched by smbus write.

BUG=None
BRANCH=None
TEST=None

Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/17557
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: I246cbdf0b52923f01dd036f63df17bf9af043c9f
Reviewed-on: https://chromium-review.googlesource.com/415061
Commit-Ready: Aaron Durbin <adurbin@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Naresh G Solanki 2016-11-21 16:55:36 +05:30 committed by chrome-bot
parent e70ba619af
commit 5f869bfbdb

View file

@ -64,7 +64,7 @@ int smbus_print_error(u32 smbus_dev, u8 host_status, int loops);
int smbus_is_busy(u32 smbus_dev);
int smbus_wait_until_ready(u32 smbus_dev);
u8 smbus_read_byte(u32 smbus_dev, u8 addr, u8 offset);
u8 smbus_write_byte(u32 smbus_dev, u8 addr, u8 offset, u8 value);
void smbus_delay(void);
#endif /* DEVICE_EARLY_SMBUS_H */