diff options
| author | Subrata Banik <subratabanik@google.com> | 2023-07-25 16:14:08 +0000 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-07-31 14:04:04 +0000 |
| commit | edd996103fd7e0e4d1d03888e070354b5948769d (patch) | |
| tree | a8d537981e023d64d46a399031def75df12de15c /Makefile | |
| parent | fe49f36ca8e084048d8914d8a8eabcf12cc51c9d (diff) | |
mb/google/rex/var/ovis: Simplify the USB-C port mapping
This patch changes the `EC CONx Mapping` to fix the hot-plug issue
where attaching a device to USB-C port C1 can affect the USB-C
display over port C2.
Note: `PMC MUX Mapping` remains unchanged to reflect the underlying
board design where the physical MUX has swapped between C1 and C2
USB-C port.
Before:
| PMC MUX Mapping | Port C0 | Port C1 | Port C2 |
+------------------+-------------+-------------+---------------+
| USB2-Port | 2 | 3 | 1 |
| USB3-Port | 0 | 2 | 1 |
| EC CONx Mapping | Port C0 | Port C1 | Port C2 |
+------------------+-------------+-------------+---------------+
| USB2-Port | 2 | 3 | 1 |
| USB3-Port | 0 | 2 | 1 |
Physical Mapping between EC and SoC as below:
Port C0 - EC CON0 ----> PMC MUX CON0
Port C1 - EC CON1 ----> PMC MUX CON2
Port C2 - EC CON2 ----> PMC MUX CON1
After:
| PMC MUX Mapping | Port C0 | Port C1 | Port C2 |
+------------------+-------------+-------------+---------------+
| USB2-Port | 2 | 3 | 1 |
| USB3-Port | 0 | 2 | 1 |
| EC CONx Mapping | Port C0 | Port C1 | Port C2 |
+------------------+-------------+-------------+---------------+
| USB2-Port | 2 | 1 | 3 |
| USB3-Port | 0 | 1 | 2 |
Physical Mapping between EC and SoC as below:
Port C0 - EC CON0 ----> PMC MUX CON0
Port C1 - EC CON1 ----> PMC MUX CON1
Port C2 - EC CON2 ----> PMC MUX CON2
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I59e2630bc0f93321cc4b734fcf3c4cf254882477
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76758
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions