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62b7f5931c
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
29 lines
831 B
Diff
29 lines
831 B
Diff
From 27f210c863d3349d41e366fb7573e9dcc0708e3d Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Fri, 4 Sep 2020 09:04:29 +0100
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Subject: [PATCH] ARM: dts: Limit BT modem baud rate on 3B
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The 3B doesn't have the flow control signals connected to the BT modem,
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which limits the maximum usable baud rate to below 1 Mbaud. Use
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921600 as a relatively safe default value, but the krnbt_baudrate
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parameter can still override it.
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/boot/dts/bcm2710-rpi-3-b.dts | 4 ++++
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1 file changed, 4 insertions(+)
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--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
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+++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
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@@ -117,6 +117,10 @@
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status = "okay";
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};
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+&bt {
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+ max-speed = <921600>;
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+};
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+
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&spi0 {
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pinctrl-names = "default";
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pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
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