immortalwrt-mt798x/target/linux/mvebu/patches-5.4/318-ARM-dts-turris-omnia-fix-hardware-buffer-management.patch
Rui Salvaterra 17a627ec82 mvebu/omnia: fix the device tree
Backport [1] and fix [2] hardware buffer management. Also fix the IRQ storm
caused by a misconfiguration of the PCA9538 interrupt pin [3].

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch/arm/boot/dts/armada-385-turris-omnia.dts?id=018b88eee1a2efda26ed2f09aab33ccdc40ef18f
[2] https://lore.kernel.org/linux-arm-kernel/20210217153038.1068170-1-rsalvaterra@gmail.com/
[3] https://lore.kernel.org/linux-arm-kernel/20210220231144.32325-1-kabel@kernel.org/

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
(cherry picked from commit 6fe6b631ef91a8a44d7324329ad6aaec6f08ada6)
2021-03-01 13:41:29 +01:00

28 lines
1.0 KiB
Diff

From 9704292ed3230ee19dc4dd64f7484301b728ffb7 Mon Sep 17 00:00:00 2001
From: Rui Salvaterra <rsalvaterra@gmail.com>
Date: Wed, 17 Feb 2021 15:19:30 +0000
Subject: [PATCH] ARM: dts: turris-omnia: fix hardware buffer management
Hardware buffer management has never worked on the Turris Omnia, as the
required MBus window hadn't been reserved. Fix thusly.
Fixes: 018b88eee1a2 ("ARM: dts: turris-omnia: enable HW buffer management")
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
---
arch/arm/boot/dts/armada-385-turris-omnia.dts | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/arm/boot/dts/armada-385-turris-omnia.dts
+++ b/arch/arm/boot/dts/armada-385-turris-omnia.dts
@@ -31,7 +31,8 @@
ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000
MBUS_ID(0x09, 0x19) 0 0xf1100000 0x10000
- MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000>;
+ MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000
+ MBUS_ID(0x0c, 0x04) 0 0xf1200000 0x100000>;
internal-regs {