[XS] Change in flashrom[main]: classic_cli_manpage.rst: Update doc for custom_rst of raiden_debug_spi

[Hsuan-ting Chen (Code Review)]

Hsuan-ting Chen has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/81114?usp=email )

Change subject: classic_cli_manpage.rst: Update doc for custom_rst of raiden_debug_spi
......................................................................

classic_cli_manpage.rst: Update doc for custom_rst of raiden_debug_spi

Update technical details for custom_rst of raiden_debug_spi to help
users better understand their configuration options.

BUG=b:161745002
BRANCH=none
TEST=none

Change-Id: Ie2b084a3ed9bf40f91bfa81dbc95ec69d99d5ad0
Signed-off-by: Hsuan Ting Chen 
---
M doc/classic_cli_manpage.rst
1 file changed, 5 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/14/81114/1

diff --git a/doc/classic_cli_manpage.rst b/doc/classic_cli_manpage.rst
index c46edf6..4b2c9a9 100644
--- a/doc/classic_cli_manpage.rst
+++ b/doc/classic_cli_manpage.rst
@@ -899,11 +899,14 @@
 The servo device serial number can be found via ``lsusb``.
 Raiden will poll the ``ap`` target waiting for the system power to settle on the AP and EC flash devices.

-The optional ``custom_rst=true`` parameter changes the timeout value from 3ms to 10ms::
+The optional ``custom_rst=true`` parameter alters the behavior of the reset process::

flashrom -p raiden_debug_spi:custom_rst=<true|false>

-syntax, where ``custom_rst=false`` is the implicit default timeout of 3ms. More information about the ChromiumOS servo
+syntax, where ``custom_rst=false`` is the implicit default timeout of 3ms and ``custom_rst=true`` set ``RAIDEN_DEBUG_SPI_REQ_ENABLE_AP_CUSTOM`` instead of ``RAIDEN_DEBUG_SPI_REQ_ENABLE_AP``.
+This custom reset modify the timeout from 3ms to 10ms and will not set ``EC_RST_L``, meaning neither the EC nor the AP will be reset. With this setting, it's the user's responsibility to manage the reset signal manually or by configuring the GPIO.
+Failure to handle the reset signal appropriately will likely result in flashing errors.
+More information about the ChromiumOS servo
 hardware is available at `servos website https://chromium.googlesource.com/chromiumos/third_party/hdctools/+/HEAD/docs/servo_v4.md`_.