diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0412-dts-Increase-default-coherent-pool-size.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0412-dts-Increase-default-coherent-pool-size.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0412-dts-Increase-default-coherent-pool-size.patch b/target/linux/bcm27xx/patches-4.19/950-0412-dts-Increase-default-coherent-pool-size.patch new file mode 100644 index 0000000000..e39aeb089d --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0412-dts-Increase-default-coherent-pool-size.patch @@ -0,0 +1,27 @@ +From e13c663bfc75a628ba25afdf3f3b4a40a2c0250e Mon Sep 17 00:00:00 2001 +From: P33M <p33m@github.com> +Date: Wed, 1 May 2019 15:00:05 +0100 +Subject: [PATCH] dts: Increase default coherent pool size + +dwc_otg allocates DMA-coherent buffers in atomic context for misaligned +transfer buffers. The pool that these allocations come from is set up +at boot-time but can be overridden by a commandline parameter - +increase this for now to prevent failures seen on 4.19 with multiple +USB Ethernet devices. + +see: https://github.com/raspberrypi/linux/issues/2924 +--- + arch/arm/boot/dts/bcm270x.dtsi | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/arm/boot/dts/bcm270x.dtsi ++++ b/arch/arm/boot/dts/bcm270x.dtsi +@@ -3,7 +3,7 @@ + + / { + chosen { +- bootargs = ""; ++ bootargs = "coherent_pool=1M"; + /delete-property/ stdout-path; + }; + |