diff options
| author | Zheng Bao <fishbaozi@gmail.com> | 2015-11-09 23:53:34 +0800 |
|---|---|---|
| committer | Zheng Bao <zheng.bao@amd.com> | 2015-11-10 10:34:32 +0100 |
| commit | f3aea52a70cbe253823ae48d00f504b565731c2c (patch) | |
| tree | 08cdb4695db727e7f029d7f5e2a6c1a69d5a09cc /Documentation/hypertransport.svg | |
| parent | 69e89f249fc52a11bed569e7c1e9df8c7dc18d0e (diff) | |
| download | coreboot-f3aea52a70cbe253823ae48d00f504b565731c2c.tar.xz | |
AMD/Bettong: add function to read board version
Bettong uses 3 GPIO(5-7) pins to identify board.
The GPIO ports are mapped to MMIO space.
The GPIO value and board version are mapped as follow:
GPIO5 GPIO6 GPIO7 Version
0 0 0 A
0 0 1 B
......
1 1 1 H
Change-Id: I72df28043057d8c4ccc4a2e645011ca5379e9928
Signed-off-by: WANG Siyuan <wangsiyuanbuaa@gmail.com>
Signed-off-by: WANG Siyuan <SiYuan.Wang@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11732
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Diffstat (limited to 'Documentation/hypertransport.svg')
0 files changed, 0 insertions, 0 deletions