New patch to review for coreboot: a30aaf5 lenovo/x201: Unpower USB on undocking

[Vladimir Serbinenko]

Vladimir Serbinenko ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6708

-gerrit

commit a30aaf5be3d76a8d528c80ad436dbe942b2dcbe4
Author: Vladimir Serbinenko 
Date:   Tue Aug 19 00:48:39 2014 +0200

lenovo/x201: Unpower USB on undocking

Change-Id: I9b496e8ff92ee575d0b780eab0cb45ea05506d30
    Signed-off-by: Vladimir Serbinenko 
---
 src/mainboard/lenovo/x201/acpi/dock.asl | 2 ++
 src/mainboard/lenovo/x201/dock.c        | 8 ++++++++
 src/mainboard/lenovo/x201/gpio.h        | 2 +-
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/mainboard/lenovo/x201/acpi/dock.asl b/src/mainboard/lenovo/x201/acpi/dock.asl
index 974dc96..421ee15 100644
--- a/src/mainboard/lenovo/x201/acpi/dock.asl
+++ b/src/mainboard/lenovo/x201/acpi/dock.asl
@@ -33,11 +33,13 @@ Scope (_SB)
    	{
    		if (Arg0) {
    		   /* connect dock */
+			   Store (1, \GP28)
    		   Store (1, _SB.PCI0.LPCB.EC.DKR1)
    		   Store (1, _SB.PCI0.LPCB.EC.DKR2)
    		   Store (1, _SB.PCI0.LPCB.EC.DKR3)
    		} else {
    		   /* disconnect dock */
+			   Store (0, \GP28)
    		   Store (0, _SB.PCI0.LPCB.EC.DKR1)
    		   Store (0, _SB.PCI0.LPCB.EC.DKR2)
    		   Store (0, _SB.PCI0.LPCB.EC.DKR3)
diff --git a/src/mainboard/lenovo/x201/dock.c b/src/mainboard/lenovo/x201/dock.c
index fb2c797..3dba5e1 100644
--- a/src/mainboard/lenovo/x201/dock.c
+++ b/src/mainboard/lenovo/x201/dock.c
@@ -42,16 +42,24 @@ void h8_mainboard_init_dock (void)

void dock_connect(void)
 {
+	u16 gpiobase = pci_read_config16(PCH_LPC_DEV, GPIO_BASE) & 0xfffc;
+
    ec_set_bit(0x02, 0);
    ec_set_bit(0x1a, 0);
    ec_set_bit(0xfe, 4);
+
+	outl(inl(gpiobase + 0x0c) | (1 << 28), gpiobase + 0x0c);
 }

void dock_disconnect(void)
 {
+	u16 gpiobase = pci_read_config16(PCH_LPC_DEV, GPIO_BASE) & 0xfffc;
+
    ec_clr_bit(0x02, 0);
    ec_clr_bit(0x1a, 0);
    ec_clr_bit(0xfe, 4);
+
+	outl(inl(gpiobase + 0x0c) & ~(1 << 28), gpiobase + 0x0c);
 }

int dock_present(void)
diff --git a/src/mainboard/lenovo/x201/gpio.h b/src/mainboard/lenovo/x201/gpio.h
index d9e9ff2..f01c9d9 100644
--- a/src/mainboard/lenovo/x201/gpio.h
+++ b/src/mainboard/lenovo/x201/gpio.h
@@ -156,7 +156,7 @@ const struct pch_gpio_set1 pch_gpio_set1_level = {
    .gpio25 = GPIO_LEVEL_HIGH,
    .gpio26 = GPIO_LEVEL_HIGH,
    .gpio27 = GPIO_LEVEL_HIGH,
-	.gpio28 = GPIO_LEVEL_HIGH,
+	.gpio28 = GPIO_LEVEL_LOW,
    .gpio29 = GPIO_LEVEL_HIGH,
    .gpio30 = GPIO_LEVEL_HIGH,
    .gpio31 = GPIO_LEVEL_HIGH,