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-rw-r--r--src/mainboard/google/veyron_rialto/mainboard.c9
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();