diff options
Diffstat (limited to 'arch/arm/mach-bcm283x')
| -rw-r--r-- | arch/arm/mach-bcm283x/Kconfig | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig index 8e69914a835..b08275f5989 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 BCM2711 + bool "Broadcom BCM2711 SoC support" + depends on ARCH_BCM283X + +config BCM2711_32B + bool "Broadcom BCM2711 SoC 32-bit support" + depends on ARCH_BCM283X + select BCM2711 + select ARMV7_LPAE + select CPU_V7A + +config BCM2711_64B + bool "Broadcom BCM2711 SoC 64-bit support" + depends on ARCH_BCM283X + select BCM2711 + 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 BCM2711-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 BCM2711_32B + +config TARGET_RPI_4 + bool "Raspberry Pi 4 64-bit build" + help + Support for all BCM2711-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 BCM2711_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 BCM2711 endmenu |