From 8299d1f057439f94c6a4412e2e5c5082b82a30c9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Sat, 21 Aug 2021 10:54:34 +0200 Subject: bcm27xx: add kernel 5.10 support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas --- ...0125-arm-bcm2835-DMA-can-only-address-1GB.patch | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 target/linux/bcm27xx/patches-5.10/950-0125-arm-bcm2835-DMA-can-only-address-1GB.patch (limited to 'target/linux/bcm27xx/patches-5.10/950-0125-arm-bcm2835-DMA-can-only-address-1GB.patch') diff --git a/target/linux/bcm27xx/patches-5.10/950-0125-arm-bcm2835-DMA-can-only-address-1GB.patch b/target/linux/bcm27xx/patches-5.10/950-0125-arm-bcm2835-DMA-can-only-address-1GB.patch new file mode 100644 index 0000000000..6c36ec4e6d --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0125-arm-bcm2835-DMA-can-only-address-1GB.patch @@ -0,0 +1,25 @@ +From eac607290fee8b1bcd08c48ac49f089f41a0e696 Mon Sep 17 00:00:00 2001 +From: Phil Elwell +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 +--- + 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, -- cgit v1.2.3