2017-03-08 08:46:30 +00:00
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From 70af0eca2c4a2a80a8edd6ce4c4c7a9eac038893 Mon Sep 17 00:00:00 2001
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2016-12-02 10:50:26 +00:00
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Sun, 27 Nov 2016 21:45:55 +0000
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Subject: [PATCH] BCM270X_DT: Update UART0 clock-frequency
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The Raspberry Pi firmware now sets the UART0 clock frequency to
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48MHz (was 3MHz), to allow for baudrates up to 3MHz. This value
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is overwritten by the firmware, but alternative loaders such
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as U-Boot ignore the firmware-provided DTB. And besides, the
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default ought to be correct.
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See: https://github.com/raspberrypi/linux/issues/1732
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/bcm2708_common.dtsi | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/arm/boot/dts/bcm2708_common.dtsi
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+++ b/arch/arm/boot/dts/bcm2708_common.dtsi
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@@ -456,7 +456,7 @@
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reg = <2>;
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#clock-cells = <0>;
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clock-output-names = "uart0_pclk";
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- clock-frequency = <3000000>;
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+ clock-frequency = <48000000>;
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};
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clk_apb_p: clock@3 {
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