Nico Huber has uploaded this change for review.

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[WIP] mb/roda/rk9: Document flash header

Change-Id: I5bd131635340ffa0c6b8979fc8e263fc5f09fdc5
---
A Documentation/mainboard/roda/rk9/flash_header.md
1 file changed, 23 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/25/32025/1

diff --git a/Documentation/mainboard/roda/rk9/flash_header.md b/Documentation/mainboard/roda/rk9/flash_header.md
new file mode 100644
index 0000000..26efcb4
--- /dev/null
+++ b/Documentation/mainboard/roda/rk9/flash_header.md
@@ -0,0 +1,23 @@
+Flash Header
+============
+
+There is a 5x2 pin, 1.27mm pitch header "J1" south of the BIOS flash. It
+follows the pinout of the Dediprog adaptor board:
+
+    +------+
+    | 1  2 |    1: HOLD 2   2: CS 2
+    | 3  4 |    3: CS 1     4: VCC
+    | 5  6 |    5: MISO     6: HOLD 1
+    | 7  8 |    7:          8: CLK
+    | 9 10 |    9: GND     10: MOSI
+    +------+
+
+Pins 3 to 10 directly map to the regular SPI flash pinout.
+
+There is also a JP17 around. Ideally, it should be closed during
+programming (isolates the SPI bus from the southbridge):
+
+    +---+
+    | 1 |   1: SF100-I/O3
+    | 2 |   2: GND
+    +---+

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