David Gebski has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/41490 )
Change subject: Doc/mb/lenovo/t420s.md: Add documentation for Lenovo T420s ......................................................................
Doc/mb/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: Ia2c6701bc8269e73e4af5a9414b7ded77a4d3571 --- 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/90/41490/1
diff --git a/Documentation/mainboard/lenovo/t420s.md b/Documentation/mainboard/lenovo/t420s.md new file mode 100644 index 0000000..82be80c --- /dev/null +++ b/Documentation/mainboard/lenovo/t420s.md @@ -0,0 +1,22 @@ +# 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 magnesium 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 new file mode 100644 index 0000000..3ec4201 --- /dev/null +++ b/Documentation/mainboard/lenovo/t420s_board.jpg Binary files differ diff --git a/Documentation/mainboard/lenovo/t420s_rpi.jpg b/Documentation/mainboard/lenovo/t420s_rpi.jpg new file mode 100644 index 0000000..6fe204c --- /dev/null +++ b/Documentation/mainboard/lenovo/t420s_rpi.jpg Binary files differ