diff options
Diffstat (limited to 'meta-agl-bsp/meta-raspberrypi/recipes-bsp/u-boot/u-boot-2019.07/0003-arm-mach-bcm283x-Define-configs-for-RaspberryPi-4.patch')
| -rw-r--r-- | meta-agl-bsp/meta-raspberrypi/recipes-bsp/u-boot/u-boot-2019.07/0003-arm-mach-bcm283x-Define-configs-for-RaspberryPi-4.patch | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/meta-agl-bsp/meta-raspberrypi/recipes-bsp/u-boot/u-boot-2019.07/0003-arm-mach-bcm283x-Define-configs-for-RaspberryPi-4.patch b/meta-agl-bsp/meta-raspberrypi/recipes-bsp/u-boot/u-boot-2019.07/0003-arm-mach-bcm283x-Define-configs-for-RaspberryPi-4.patch new file mode 100644 index 000000000..029cac496 --- /dev/null +++ b/meta-agl-bsp/meta-raspberrypi/recipes-bsp/u-boot/u-boot-2019.07/0003-arm-mach-bcm283x-Define-configs-for-RaspberryPi-4.patch @@ -0,0 +1,108 @@ +From c03f551cab8fe38de8f0e1781f0e2e339419b003 Mon Sep 17 00:00:00 2001 +From: Andrei Gherzan <andrei@balena.io> +Date: Wed, 17 Jul 2019 15:33:01 +0100 +Subject: [PATCH 3/7] arm: mach-bcm283x: Define configs for RaspberryPi 4 + +Define two target configs for Raspberry Pi 4 (32 and 64bit) and the +corresponding BCM2838* configs. + +Be aware of the current limitation in firmware which requires an +explicit configuration to force the arm in 64bit mode when the +respective target is used. + +Signed-off-by: Andrei Gherzan <andrei@balena.io> +Signed-off-by: Matthias Brugger <mbrugger@suse.com> +Upstream-status: Pending +--- + arch/arm/mach-bcm283x/Kconfig | 62 +++++++++++++++++++++++++++++++++++ + 1 file changed, 62 insertions(+) + +diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig +index 8e69914a83..09a5b42bbb 100644 +--- a/arch/arm/mach-bcm283x/Kconfig ++++ b/arch/arm/mach-bcm283x/Kconfig +@@ -26,6 +26,23 @@ config BCM2837_64B + select BCM2837 + select ARM64 + ++config BCM2838 ++ bool "Broadcom BCM2838 SoC support" ++ depends on ARCH_BCM283X ++ ++config BCM2838_32B ++ bool "Broadcom BCM2838 SoC 32-bit support" ++ depends on ARCH_BCM283X ++ select BCM2838 ++ select ARMV7_LPAE ++ select CPU_V7A ++ ++config BCM2838_64B ++ bool "Broadcom BCM2838 SoC 64-bit support" ++ depends on ARCH_BCM283X ++ select BCM2838 ++ select ARM64 ++ + menu "Broadcom BCM283X family" + depends on ARCH_BCM283X + +@@ -127,6 +144,50 @@ config TARGET_RPI_3 + This option creates a build targeting the ARMv8/AArch64 ISA. + select BCM2837_64B + ++config TARGET_RPI_4_32B ++ bool "Raspberry Pi 4 32-bit build" ++ help ++ Support for all BCM2838-based Raspberry Pi variants, such as ++ the RPi 4 model B, in AArch32 (32-bit) mode. ++ ++ This option assumes the VideoCore firmware is configured to use the ++ mini UART (rather than PL011) for the serial console. This is the ++ default on the RPi 4. To enable the UART console, the following non- ++ default option must be present in config.txt: enable_uart=1. This is ++ required for U-Boot to operate correctly, even if you only care ++ about the HDMI/usbkbd console. ++ ++ Due to hardware incompatibilities, this can't be used with ++ BCM283/5/6/7. ++ ++ This option creates a build targeting the ARMv7/AArch32 ISA. ++ select BCM2838_32B ++ ++config TARGET_RPI_4 ++ bool "Raspberry Pi 4 64-bit build" ++ help ++ Support for all BCM2838-based Raspberry Pi variants, such as ++ the RPi 4 model B, in AArch64 (64-bit) mode. ++ ++ This option assumes the VideoCore firmware is configured to use the ++ mini UART (rather than PL011) for the serial console. This is the ++ default on the RPi 4. To enable the UART console, the following non- ++ default option must be present in config.txt: enable_uart=1. This is ++ required for U-Boot to operate correctly, even if you only care ++ about the HDMI/usbkbd console. ++ ++ Due to hardware incompatibilities, this can't be used with ++ BCM283/5/6/7. ++ ++ Also, due to a bug in firmware, switching to 64bit mode doesn't ++ happen automatically based on the kernel's image filename. See ++ https://github.com/raspberrypi/firmware/issues/1193 for more details. ++ Until that is resolved, the configuration (config.txt) needs to ++ explicitly set: arm_64bit=1. ++ ++ This option creates a build targeting the ARMv8/AArch64 ISA. ++ select BCM2838_64B ++ + endchoice + + config SYS_BOARD +@@ -145,5 +206,6 @@ config BCM283x_BASE + hex + default "0x20000000" if BCM2835 + default "0x3f000000" if BCM2836 || BCM2837 ++ default "0xfe000000" if BCM2838 + + endmenu +-- +2.22.0 + |