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-rw-r--r--Documentation/mainboard/index.md1
-rw-r--r--Documentation/mainboard/lenovo/Ivy_Bridge_series.md2
-rw-r--r--Documentation/mainboard/lenovo/x230s.md19
-rw-r--r--Documentation/mainboard/lenovo/x230s_bc_removed.jpgbin0 -> 42564 bytes
4 files changed, 21 insertions, 1 deletions
diff --git a/Documentation/mainboard/index.md b/Documentation/mainboard/index.md
index c5503e2616..c229b060d5 100644
--- a/Documentation/mainboard/index.md
+++ b/Documentation/mainboard/index.md
@@ -102,6 +102,7 @@ The boards in this section are not real mainboards, but emulators.
- [W530](lenovo/w530.md)
- [T430 / T530 / X230 / W530 common](lenovo/Ivy_Bridge_series.md)
- [T431s](lenovo/t431s.md)
+- [X230s](lenovo/x230s.md)
- [Internal flashing](lenovo/ivb_internal_flashing.md)
### Haswell series
diff --git a/Documentation/mainboard/lenovo/Ivy_Bridge_series.md b/Documentation/mainboard/lenovo/Ivy_Bridge_series.md
index f4f0efff6c..5f151663c4 100644
--- a/Documentation/mainboard/lenovo/Ivy_Bridge_series.md
+++ b/Documentation/mainboard/lenovo/Ivy_Bridge_series.md
@@ -1,6 +1,6 @@
# Lenovo Ivy Bridge series
-This information is valid for all supported models, except T430s and T431s.
+This information is valid for all supported models, except T430s, [T431s](t431s.md) and [X230s](x230s.md).
## Flashing coreboot
```eval_rst
diff --git a/Documentation/mainboard/lenovo/x230s.md b/Documentation/mainboard/lenovo/x230s.md
new file mode 100644
index 0000000000..845410e17b
--- /dev/null
+++ b/Documentation/mainboard/lenovo/x230s.md
@@ -0,0 +1,19 @@
+# ThinkPad Lenovo X230s
+
+## Disassembly Instructions
+
+You must remove the following parts to access the SPI flash chip:
+
+![x230s_bc_removed](x230s_bc_removed.jpg)
+
+* Base cover
+
+The [Hardware Maintenance Manual](https://download.lenovo.com/ibmdl/pub/pc/pccbbs/
+mobiles_pdf/x230s_hmm_en_0c10860_01.pdf) could be used as a guidance of disassembly.
+
+The SPI flash chip (W25Q128.V in the form of SOIC-8 for the author's X230s, but varying is possible)
+is located at the circled place.
+
+Unlike [most Ivy Bridge ThinkPads](Ivy_Bridge_series.md), X230s has a single 16MiB SPI flash chip.
+
+The general [flashing tutorial](../../flash_tutorial/index.md) has more details.
diff --git a/Documentation/mainboard/lenovo/x230s_bc_removed.jpg b/Documentation/mainboard/lenovo/x230s_bc_removed.jpg
new file mode 100644
index 0000000000..1735e8100b
--- /dev/null
+++ b/Documentation/mainboard/lenovo/x230s_bc_removed.jpg
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