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authorPatrick Rudolph <siro@das-labor.org>2018-10-30 17:38:13 +0100
committerFelix Held <felix-coreboot@felixheld.de>2018-11-10 11:51:27 +0000
commitc0a1625df13ac9e95ca4de849ac52bb3af29c7b6 (patch)
treed00241b3078090ff85d5f18df9043fc2e8acc549 /Documentation/mainboard
parentd2c2f83964ff43141011c52c27e6eca7f1e5263a (diff)
downloadcoreboot-c0a1625df13ac9e95ca4de849ac52bb3af29c7b6.tar.xz
mb/lenovo/t400: Improve docking code
* Remove dead code * Add support for types 2504 and 2505 * Print dock info at romstage entry * Improve dock disconnect for type 2505 * Move defines into dock.h for future ACPI code * Reduce timeouts according to spec to decrease boot time on error * Fix no docking detection (reduces boot time by 1 second) * Configure GPIO LDN before reading GPIOs * Use Kconfig values instead of fixed defines * Add documentation Tested on Lenovo T500 with docking 2504 and 2505. Change-Id: Ic4510ffadc67da95961cecd51a6d8ed856b3ac99 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/29418 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'Documentation/mainboard')
-rw-r--r--Documentation/mainboard/lenovo/t4xx_series.md14
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diff --git a/Documentation/mainboard/lenovo/t4xx_series.md b/Documentation/mainboard/lenovo/t4xx_series.md
index e5e90f1e6f..3ca70470a1 100644
--- a/Documentation/mainboard/lenovo/t4xx_series.md
+++ b/Documentation/mainboard/lenovo/t4xx_series.md
@@ -18,3 +18,17 @@ the whole device.
* Unplug the power cable
* Remove the bottom enclosure
* Flip the mainboard and remove the main frame
+
+## Docking stations
+The following docking stations are supported by coreboot:
+* Type 2505
+ * VGA, Ethernet, Modem, PS2, 4 USB Ports
+ * Dock ID on pc87382 reads as: 2
+* Type 2504
+ * Serial, LPT, LEDs, Audio, DVI, VGA, Ethernet, Modem, PS2, 4 USB Ports
+ * Dock ID on pc87382 reads as: 1
+ * PNP IO address of SuperIO pc87384: 0x2e
+
+There's no hotplug support for LPT and Serial on Type 2504.
+
+The Dock ID reads as 7 if no dock is connected.