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

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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
1 changed files with 1 additions and 1 deletions
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2
src/include/device/early_smbus.h
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@ -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 */