diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0962-ARM-dts-Limit-BT-modem-baud-rate-on-3B.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0962-ARM-dts-Limit-BT-modem-baud-rate-on-3B.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0962-ARM-dts-Limit-BT-modem-baud-rate-on-3B.patch b/target/linux/bcm27xx/patches-5.4/950-0962-ARM-dts-Limit-BT-modem-baud-rate-on-3B.patch new file mode 100644 index 0000000000..f88cc7b397 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0962-ARM-dts-Limit-BT-modem-baud-rate-on-3B.patch @@ -0,0 +1,28 @@ +From 27f210c863d3349d41e366fb7573e9dcc0708e3d Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.com> +Date: Fri, 4 Sep 2020 09:04:29 +0100 +Subject: [PATCH] ARM: dts: Limit BT modem baud rate on 3B + +The 3B doesn't have the flow control signals connected to the BT modem, +which limits the maximum usable baud rate to below 1 Mbaud. Use +921600 as a relatively safe default value, but the krnbt_baudrate +parameter can still override it. + +Signed-off-by: Phil Elwell <phil@raspberrypi.com> +--- + arch/arm/boot/dts/bcm2710-rpi-3-b.dts | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts ++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts +@@ -117,6 +117,10 @@ + status = "okay"; + }; + ++&bt { ++ max-speed = <921600>; ++}; ++ + &spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; |