This adds an explanation of which Raspberry Pi models each target option supports.
Signed-off-by: Stephen Warren swarren@wwwdotorg.org --- arch/arm/mach-bcm283x/Kconfig | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig index dc6770437ec6..0790dd02d6f0 100644 --- a/arch/arm/mach-bcm283x/Kconfig +++ b/arch/arm/mach-bcm283x/Kconfig @@ -14,12 +14,29 @@ choice optional
config TARGET_RPI - bool "Raspberry Pi" + bool "Raspberry Pi (all BCM2835 variants)" + help + Support for all ARM1176-/BCM2835-based Raspberry Pi variants, such as + the A, A+, B, B+, Compute Module, and Zero. This option cannot + support BCM2836/BCM2837-based Raspberry Pis such as the RPi 2 and + RPi 3 due to different peripheral address maps. + + This option creates a build targetting the ARM1176 ISA. select BCM2835 select CPU_ARM1176
config TARGET_RPI_2 bool "Raspberry Pi 2" + help + Support for all BCM2836-based Raspberry Pi variants, such as + the RPi 2 model B. + + This option should also support BCM2837-based variants such as the + RPi 3 model B, when run in 32-bit mode, provided you have configured + the VideoCore firmware (via config.txt) to select the PL011 UART for + the console (the default is the mini UART on the RPi 3). + + This option creates a build targetting the ARMv7/AArch32 ISA. select ARMV7_LPAE select BCM2836 select CPU_V7