diff options
| author | Subrata Banik <subratabanik@google.com> | 2022-03-27 20:15:50 +0530 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-03-29 13:56:58 +0000 |
| commit | 9648106683ab348acaa9cff6d4eb801915081418 (patch) | |
| tree | 078f3758d5dbac3f64a82729dd0f58de8b9efbfb | |
| parent | 812df72a54034adec7f296b9af9a120e121ccfcd (diff) | |
Documentation: gpio: Update table as per coreboot guidelines
This patch fixes the table issue in markdown file introduced with commit
5338a16b (Documentation: gpio: Fix table).
BUG=b:211573253, b:211950520
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ic4f27f46a9d219098612d8b7747ae26116506fce
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63126
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
| -rw-r--r-- | Documentation/getting_started/gpio.md | 81 |
1 files changed, 55 insertions, 26 deletions
diff --git a/Documentation/getting_started/gpio.md b/Documentation/getting_started/gpio.md index 5f30ea7c38..216ba5d3bb 100644 --- a/Documentation/getting_started/gpio.md +++ b/Documentation/getting_started/gpio.md @@ -167,32 +167,61 @@ could cause catastrophic failures, up to and including your mainboard! As per Intel Platform Controller Hub (PCH) EDS since Skylake, a GPIO PAD register supports four different types of GPIO reset as: -| PAD Reset Config | Platform Reset | GPP | GPD | -|-------------------------------------------------|----------------|-----|-----| -| 00 - Power Good (GPP: RSMRST, GPD: DSW_PWROK) | Warm Reset | N | N | -| | Cold Reset | N | N | -| | S3/S4/S5 | N | N | -| | Global Reset | N | N | -| | Deep Sx | Y | N | -| | G3 | Y | N | -| 01 - Deep | Warm Reset | Y | Y | -| | Cold Reset | Y | Y | -| | S3/S4/S5 | N | N | -| | Global Reset | Y | Y | -| | Deep Sx | Y | Y | -| | G3 | Y | Y | -| 10 - Host Reset/PLTRST | Warm Reset | Y | Y | -| | Cold Reset | Y | Y | -| | S3/S4/S5 | Y | Y | -| | Global Reset | Y | Y | -| | Deep Sx | Y | Y | -| | G3 | Y | Y | -| 11 - Resume Reset (GPP: Reserved, GPD: RSMRST) | Warm Reset | - | N | -| | Cold Reset | - | N | -| | S3/S4/S5 | - | N | -| | Global Reset | - | N | -| | Deep Sx | - | Y | -| | G3 | - | Y | +```eval_rst ++------------------------+----------------+-------------+-------------+ +| | | PAD Reset ? | ++ PAD Reset Config + Platform Reset +-------------+-------------+ +| | | GPP | GPD | ++========================+================+=============+=============+ +| | 00 - Power Good | Warm Reset | N | N | +| | (GPP: RSMRST, +----------------+-------------+-------------+ +| | GPD: DSW_PWROK) | Cold Reset | N | N | +| |----------------+-------------+-------------+ +| | S3/S4/S5 | N | N | +| +----------------+-------------+-------------+ +| | Global Reset | N | N | +| +----------------+-------------+-------------+ +| | Deep Sx | Y | N | +| +----------------+-------------+-------------+ +| | G3 | Y | Y | ++------------------------+----------------+-------------+-------------+ +| 01 - Deep | Warm Reset | Y | Y | +| +----------------+-------------+-------------+ +| | Cold Reset | Y | Y | +| +----------------+-------------+-------------+ +| | S3/S4/S5 | N | N | +| +----------------+-------------+-------------+ +| | Global Reset | Y | Y | +| +----------------+-------------+-------------+ +| | Deep Sx | Y | Y | +| +----------------+-------------+-------------+ +| | G3 | Y | Y | ++------------------------+----------------+-------------+-------------+ +| 10 - Host Reset/PLTRST | Warm Reset | Y | Y | +| +----------------+-------------+-------------+ +| | Cold Reset | Y | Y | +| +----------------+-------------+-------------+ +| | S3/S4/S5 | Y | Y | +| +----------------+-------------+-------------+ +| | Global Reset | Y | Y | +| +----------------+-------------+-------------+ +| | Deep Sx | Y | Y | +| +----------------+-------------+-------------+ +| | G3 | Y | Y | ++------------------------+----------------+-------------+-------------+ +| | 11 - Resume Reset | Warm Reset | - | N | +| | (GPP: Reserved, +----------------+-------------+-------------+ +| | GPD: RSMRST) | Cold Reset | - | N | +| +----------------+-------------+-------------+ +| | S3/S4/S5 | - | N | +| +----------------+-------------+-------------+ +| | Global Reset | - | N | +| +----------------+-------------+-------------+ +| | Deep Sx | - | Y | +| +----------------+-------------+-------------+ +| | G3 | - | Y | ++------------------------+----------------+-------------+-------------+ +``` Each GPIO Community has a Pad Configuration Lock register for a GPP allowing locking specific register fields in the PAD configuration register. |