diff options
| author | David Hendricks <dhendrix@chromium.org> | 2015-08-05 14:13:34 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-08-28 06:41:01 +0000 |
| commit | bf62b8cc8b67843d4b7600e1544ccf4598f2136f (patch) | |
| tree | 5c53047bce84eb7165bafd6c2e55d202e8a3d7c1 /src/mainboard | |
| parent | 50967870a9b0a55a5c973785803d7fe8921c1107 (diff) | |
veyron_rialto: Force 3G modem off
This basically does the same thing for firmware what CL:290631
did in the kernel. We want to keep the modem off until it needs
to be used to avoid enumeration/detection issues.
BUG=chrome-os-partner:43271
BRANCH=none
TEST=needs testing
Change-Id: I3b63a77c732dc4895b728b30f1dd71210a9c0e90
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Original-Commit-Id: a90ccd7fbffe44abe05e96341cc77067442c85e4
Original-Change-Id: I3516de1ea9160f7186ad7f5fb3b5d29ac73143b5
Original-Signed-off-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/290890
Original-Reviewed-by: Alexandru Stan <amstan@chromium.org>
Reviewed-on: http://review.coreboot.org/11385
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/veyron_rialto/mainboard.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mainboard/google/veyron_rialto/mainboard.c b/src/mainboard/google/veyron_rialto/mainboard.c index 52a27bbcd3..4dba666721 100644 --- a/src/mainboard/google/veyron_rialto/mainboard.c +++ b/src/mainboard/google/veyron_rialto/mainboard.c @@ -72,6 +72,14 @@ static void configure_codec(void) rkclk_configure_i2s(12288000); } +static void configure_3g(void) +{ + /* Force 3G modem off to avoid confusing the EHCI host and + * causing problems during enumeration/init */ + gpio_output(GPIO(5, C, 1), 1); /* 3G_SHUTDOWN */ + gpio_output(GPIO(4, D, 2), 0); /* 3G_ON_OFF */ +} + static void mainboard_init(device_t dev) { gpio_output(GPIO_RESET, 0); @@ -79,6 +87,7 @@ static void mainboard_init(device_t dev) configure_usb(); configure_emmc(); configure_codec(); + configure_3g(); /* No video. */ elog_init(); |