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Revert DMA zone patch because there is problems with USB

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This commit is contained in:
Ycarus (Yannick Chabanois) 2019-07-18 07:33:41 +02:00
parent f3cd746986
commit bcf23124cf
2 changed files with 2 additions and 28 deletions
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3
root/target/linux/brcm2708/image/Makefile
View file

@ -30,12 +30,12 @@ define Build/boot-common
mcopy -i $@.boot $(IMAGE_KERNEL) ::$(KERNEL_IMG)
$(foreach dts,$(shell echo $(DEVICE_DTS)),mcopy -i $@.boot $(DTS_DIR)/$(dts).dtb ::;)
mmd -i $@.boot ::/overlays
mcopy -i $@.boot cmdline.txt ::
mcopy -i $@.boot $(DTS_DIR)/overlays/*.dtbo ::/overlays/
mcopy -i $@.boot $(DTS_DIR)/overlays/README ::/overlays/
endef
define Build/boot-not4
mcopy -i $@.boot cmdline.txt ::
mcopy -i $@.boot config.txt ::
endef
@ -58,6 +58,7 @@ define Build/boot-2711
endef
define Build/boot-2711-64
mcopy -i $@.boot cmdline64.txt ::cmdline.txt
mcopy -i $@.boot config64.txt ::config.txt
endef

27
root/target/linux/brcm2708/patches-4.19/962-limit-DMA-zone-for-arm64.patch
View file

@ -1,27 +0,0 @@
From e6bef7f1fafb6b0f69c2194821d93b3244dd5c0a Mon Sep 17 00:00:00 2001
From: Andrei Gherzan <andrei@balena.io>
Date: Tue, 16 Jul 2019 13:28:22 +0100
Subject: [PATCH] arm64/mm: Limit the DMA zone for arm64
On RaspberryPi, only the first 1Gb can be used for DMA[1].
[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2019-July/665986.html
Signed-off-by: Andrei Gherzan <andrei@balena.io>
---
arch/arm64/mm/init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 774c3e17c7982..75006fa076a01 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -475,7 +475,7 @@ void __init arm64_memblock_init(void)
/* 4GB maximum for 32-bit only capable devices */
if (IS_ENABLED(CONFIG_ZONE_DMA32))
- arm64_dma_phys_limit = max_zone_dma_phys();
+ arm64_dma_phys_limit = 0x40000000;
else
arm64_dma_phys_limit = PHYS_MASK + 1;