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authorBill XIE <persmule@hardenedlinux.org>2019-10-16 23:22:10 +0800
committerArthur Heymans <arthur@aheymans.xyz>2019-10-20 09:49:44 +0000
commit96ae7a3a2d38b96c1dfee57fda2c2eaab7e9e762 (patch)
tree818197e1d4a5c331e19310c224a6438e5c2aa52f /Documentation/mainboard/lenovo
parent40377c7250dd0a88f35024342e0c515b2b1c12d0 (diff)
downloadcoreboot-96ae7a3a2d38b96c1dfee57fda2c2eaab7e9e762.tar.xz
mb/lenovo/x200: Add ThinkPad X301 as a variant
It is similar to X200s, with U-series CPU, slightly different gpio setup, no docking support, and no superio chip. Tested: - CPU Core 2 Duo U9400 - Slotted DIMM 4GiB*2 from samsung - Camera - pci-e slots - sata and usb2 - libgfxinit-based graphic init - NVRAM options for North and South bridges - Sound - Thinkpad EC - S3 - Linux 4.19.67-2 within Debian GNU/Linux stable, loaded from Linux payload (Heads) and Seabios. TODO: repurpose and/or rename flag H8_DOCK_EARLY_INIT (introduced in CB:4294 ) for h8-using devices without a dock. Change-Id: Ic6a6059ccf15dd2e43ed4fc490c1d3c36aa1e817 Signed-off-by: Bill XIE <persmule@hardenedlinux.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36093 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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diff --git a/Documentation/mainboard/lenovo/x301.md b/Documentation/mainboard/lenovo/x301.md
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+# Lenovo X301
+
+## Disassembly Instructions
+
+You must remove the following parts to access the SPI flash:
+
+![X301 with WSON8 chip replaced with SOIC8 chip](x301_kb_removed.jpg)
+
+* Battery pack
+* Keyboard
+
+Its [Hardware Maintenance Manual](https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/43y9441.pdf) can be used as a guidance of disassembly.
+
+The WSON-8 flash chip (surrounded with red circle in the photo above,
+already replaced with a SOIC-8 one) sits under a piece of insulating
+tape. If solders between the chip and soldering pads fortunately
+overflows beside the chip as tiny tin balls attached to soldering pads,
+it will be possible to use a pomona 5250 clip to hold the chip, with
+its metal tips just attached to tin balls, thus connecting the chip to
+the programmer. Otherwise, it may be recommended to replace it with a
+SOIC-8 one (you might need to add the chip to the IFD VSCC list), as
+what is done in the photo.
+
+The vendor IFD VSCC list contains:
+ -MACRONIX_MX25L6405 (0xc2, 0x2017)
+ -WINBOND_NEX_W25X64 (0xef, 0x3017)
+ -ATMEL_AT25DF641 (0x1f, 0x4800)
+
+```eval_rst
+:doc:`../../flash_tutorial/ext_power`
+```
+Tested:
+ - CPU Core 2 Duo U9400
+ - Slotted DIMM 4GiB*2 from samsung
+ - Camera
+ - pci-e slots
+ - sata and usb2
+ - libgfxinit-based graphic init
+ - NVRAM options for North and South bridges
+ - Sound
+ - Thinkpad EC
+ - S3
+ - Linux 4.19.67-2 within Debian GNU/Linux stable, loaded from
+ Linux payload (Heads) and Seabios.
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