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| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2020-03-16 20:41:03 +0100 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2020-03-16 21:24:23 +0100 |
| commit | 0f6d04457a64f2393b05f662dc8d381ea1963c66 (patch) | |
| tree | 2d6a3c82d5e6d02b030b16df66da8bf9209b02ec /target/linux/bcm27xx/patches-5.4/950-0206-arm-bcm2835-DMA-can-only-address-1GB.patch | |
| parent | d890f85e59617228b1e76e8cf45a9309904d9124 (diff) | |
| download | upstream-0f6d04457a64f2393b05f662dc8d381ea1963c66.tar.gz upstream-0f6d04457a64f2393b05f662dc8d381ea1963c66.tar.bz2 upstream-0f6d04457a64f2393b05f662dc8d381ea1963c66.zip | |
bcm27xx: sync 5.4 patches with RPi Foundation
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0206-arm-bcm2835-DMA-can-only-address-1GB.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0206-arm-bcm2835-DMA-can-only-address-1GB.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0206-arm-bcm2835-DMA-can-only-address-1GB.patch b/target/linux/bcm27xx/patches-5.4/950-0206-arm-bcm2835-DMA-can-only-address-1GB.patch new file mode 100644 index 0000000000..86ad707b95 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0206-arm-bcm2835-DMA-can-only-address-1GB.patch @@ -0,0 +1,25 @@ +From 67b31f71da2c251860dc6ddeffc5d15f8a74c675 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Wed, 29 May 2019 15:47:42 +0100 +Subject: [PATCH] arm: bcm2835: DMA can only address 1GB + +The legacy peripherals can only address the first gigabyte of RAM, so +ensure that DMA allocations are restricted to that region. + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + arch/arm/mach-bcm/board_bcm2835.c | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/arch/arm/mach-bcm/board_bcm2835.c ++++ b/arch/arm/mach-bcm/board_bcm2835.c +@@ -114,6 +114,9 @@ static const char * const bcm2835_compat + }; + + DT_MACHINE_START(BCM2835, "BCM2835") ++#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE) ++ .dma_zone_size = SZ_1G, ++#endif + .map_io = bcm2835_map_io, + .init_machine = bcm2835_init, + .dt_compat = bcm2835_compat, |