diff options
| author | Timothy Pearson <tpearson@raptorengineeringinc.com> | 2015-11-24 14:12:01 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-02-01 22:10:46 +0100 |
| commit | 448e386309c20ed1d22360e06192b632af0af720 (patch) | |
| tree | 61f1b0a1c8ccb65a5efda1e6571b9edd7051bc98 /src/southbridge | |
| parent | c2ed40b48ae3e9874213d4e70e1ac3c5fbbba8fc (diff) | |
| download | coreboot-448e386309c20ed1d22360e06192b632af0af720.tar.xz | |
drivers/pc80: Add PS/2 mouse presence detect
On certain Winbond SuperIO devices, when a PS/2 mouse is not
present on the auxiliary channel both channels will cease to
function if the auxiliary channel is probed while the primary
channel is active. Therefore, knowledge of mouse presence
must be gathered by coreboot during early boot, and used to
enable or disable the auxiliary PS/2 port before control is
passed to the operating system.
Add auxiliary channel PS/2 device presence detect, and update
the Winbond W83667HG-A driver to flag the auxiliary channel as
disabled if no device was detected.
Change-Id: I76274493dacc9016ac6d0dff8548d1dc931c6266
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/13165
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/southbridge')
| -rw-r--r-- | src/southbridge/dmp/vortex86ex/southbridge.c | 2 | ||||
| -rw-r--r-- | src/southbridge/sis/sis966/lpc.c | 2 | ||||
| -rw-r--r-- | src/southbridge/via/vt8237r/lpc.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/src/southbridge/dmp/vortex86ex/southbridge.c b/src/southbridge/dmp/vortex86ex/southbridge.c index 3ef6a5d906..05702d1eb6 100644 --- a/src/southbridge/dmp/vortex86ex/southbridge.c +++ b/src/southbridge/dmp/vortex86ex/southbridge.c @@ -607,7 +607,7 @@ static void southbridge_init(struct device *dev) retries--; } post_code(POST_DMP_KBD_IS_READY); - pc_keyboard_init(); + pc_keyboard_init(NO_AUX_DEVICE); } static struct device_operations vortex_sb_ops = { diff --git a/src/southbridge/sis/sis966/lpc.c b/src/southbridge/sis/sis966/lpc.c index 940844b442..0a5adf0378 100644 --- a/src/southbridge/sis/sis966/lpc.c +++ b/src/southbridge/sis/sis966/lpc.c @@ -91,7 +91,7 @@ static void lpc_init(device_t dev) int nmi_option; printk(BIOS_DEBUG, "LPC_INIT -------->\n"); - pc_keyboard_init(); + pc_keyboard_init(NO_AUX_DEVICE); lpc_usb_legacy_init(dev); lpc_common_init(dev); diff --git a/src/southbridge/via/vt8237r/lpc.c b/src/southbridge/via/vt8237r/lpc.c index b54d494824..dd3bcae3fd 100644 --- a/src/southbridge/via/vt8237r/lpc.c +++ b/src/southbridge/via/vt8237r/lpc.c @@ -625,7 +625,7 @@ static void init_keyboard(struct device *dev) { u8 regval = pci_read_config8(dev, 0x51); if (regval & 0x1) - pc_keyboard_init(); + pc_keyboard_init(NO_AUX_DEVICE); } static void southbridge_init_common(struct device *dev) |