mirror of
https://github.com/Ysurac/openmptcprouter.git
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30 lines
985 B
Diff
30 lines
985 B
Diff
From 7e0e8467fb94efd3f094cde02b39fc1e34be9313 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Wed, 29 May 2019 15:47:42 +0100
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Subject: [PATCH 122/552] arm: bcm2835: DMA can only address 1GB
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The legacy peripherals can only address the first gigabyte of RAM, so
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ensure that DMA allocations are restricted to that region.
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/mach-bcm/board_bcm2835.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/arch/arm/mach-bcm/board_bcm2835.c b/arch/arm/mach-bcm/board_bcm2835.c
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index 9bd9842da59f..7d59a9364175 100644
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--- a/arch/arm/mach-bcm/board_bcm2835.c
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+++ b/arch/arm/mach-bcm/board_bcm2835.c
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@@ -114,6 +114,9 @@ static const char * const bcm2835_compat[] = {
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};
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DT_MACHINE_START(BCM2835, "BCM2835")
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+#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
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+ .dma_zone_size = SZ_1G,
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+#endif
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.map_io = bcm2835_map_io,
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.init_machine = bcm2835_init,
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.dt_compat = bcm2835_compat,
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--
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2.33.0
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