2019-09-19 14:43:19 +00:00
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From f9dfd577dcc8e3173ddce79bca535eeee0fad1a4 Mon Sep 17 00:00:00 2001
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2019-07-09 18:32:28 +00:00
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Tue, 2 Jul 2019 17:13:05 +0100
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2019-12-23 12:42:55 +00:00
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Subject: [PATCH] arm: dts: Add coherent_pool=1M to Pi 4 bootargs
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2019-07-09 18:32:28 +00:00
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Downstream Raspberry Pi dts files add "coherent_pool=1M" to the kernel
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command line to aid the dwc_otg driver, but this excluded Pi 4 which
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uses a new XCHI interface instead. UAS also benefits from a larger
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coherent_pool value, so replicate the addition in bcm2711-rpi-4-b.dts.
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See: https://github.com/raspberrypi/linux/pull/3040
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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@@ -14,7 +14,7 @@
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};
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chosen {
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- bootargs = "8250.nr_uarts=1 cma=64M";
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+ bootargs = "coherent_pool=1M 8250.nr_uarts=1 cma=64M";
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};
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aliases {
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