Patch set updated for coreboot: 8641b28 lenovo/t60: Enable dock serial port when undocked and redocked

[Damien Zammit]

Damien Zammit ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/5761

-gerrit

commit 8641b283773ee666f65c786893678a67d4d97681
Author: Damien Zammit 
Date:   Fri May 16 18:52:47 2014 +1000

lenovo/t60: Enable dock serial port when undocked and redocked

When the system is started with dock, the serial port works.
    As soon as the laptop is undocked and redocked, the serial port
    no longer works.  See below superiotool dump snippet:

Upon bootup: SIO @ 0x2e
    LDN 0x03 (COM1)
    idx 30 60 61 70 71 74 75 f0
    val 01 03 f8 04 03 04 04 02

Redocked:    SIO @ 0x2e
    LDN 0x03 (COM1)
    idx 30 60 61 70 71 74 75 f0
    val 00 03 f8 04 03 04 04 02

Since the function dock_connect is executed every time the
    dock is reconnected, starting without a dock and then attaching
    it to a dock is now also fixed.

Change-Id: Ibd97589a8c743673a55e382a5db2ba62656c595e
    Signed-off-by: Damien Zammit 
---
 src/mainboard/lenovo/t60/dock.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/mainboard/lenovo/t60/dock.c b/src/mainboard/lenovo/t60/dock.c
index 9921457..b01f8e8 100644
--- a/src/mainboard/lenovo/t60/dock.c
+++ b/src/mainboard/lenovo/t60/dock.c
@@ -133,6 +133,10 @@ static int dock_superio_init(void)
     */
    dock_write_register(0x22, 0xa9);

+	/* enable serial port */
+	dock_write_register(0x07, PC87384_SP1);
+	dock_write_register(0x30, 0x01);
+
    dock_write_register(0x07, PC87384_GPIO);
    dock_write_register(0x60, 0x16);
    dock_write_register(0x61, 0x20);