David Gebski has uploaded this change for review.
Documentation/mainboard/lenovo/t420s.md: Add documentation for Lenovo T420s
Borrowed text mostly from documentation for Lenovo T420.
Added two images showing the pinout.
Signed-off-by: Zalckos <mail@davidgebski.nl>
Change-Id: I9fae5cfd596da144f2161ad35323cb2a6de645a9
---
A Documentation/mainboard/lenovo/t420s.md
A Documentation/mainboard/lenovo/t420s_board.jpg
A Documentation/mainboard/lenovo/t420s_rpi.jpg
3 files changed, 22 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/84/41484/1
diff --git a/Documentation/mainboard/lenovo/t420s.md b/Documentation/mainboard/lenovo/t420s.md
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+# Lenovo T420s
+
+## Flashing instructions
+The flash IC is located at the bottom center of the mainboard. Sadly,
+access to the IC is blocked by the magnesum frame, so you need to disassemble
+the entire laptop and remove the mainboard.
+
+Below is a picture of IC on the mainboard with clip attached, and a picture of the Raspberry Pi with cables attached. In this case it's a Winbond flash chip "W25Q64.V".
+
+
+
+
+
+For more details have a look at [T420 / T520 / X220 / T420s / W520 common] and
+the general [flashing tutorial].
+
+Steps to access the flash IC are described here [T4xx series].
+
+[T4xx series]: t4xx_series.md
+[flashing tutorial]: ../../flash_tutorial/ext_power.md
+[T420 / T520 / X220 / T420s / W520 common]: Sandy_Bridge_series.md
+
diff --git a/Documentation/mainboard/lenovo/t420s_board.jpg b/Documentation/mainboard/lenovo/t420s_board.jpg
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diff --git a/Documentation/mainboard/lenovo/t420s_rpi.jpg b/Documentation/mainboard/lenovo/t420s_rpi.jpg
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