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| author | Andre Przywara <andre.przywara@arm.com> | 2022-12-08 20:33:57 +0000 |
|---|---|---|
| committer | Andre Przywara <andre.przywara@arm.com> | 2023-04-12 00:17:22 +0100 |
| commit | 342abc1472248b38698a52a6e4c66e30c9bfaad7 (patch) | |
| tree | 868bf1e39bf3f880c259f132c1c930d838735f22 /arch/arm/mach-sunxi/Kconfig | |
| parent | deb77f18bf68eef3a94ae9e63498d67ee7be7151 (diff) | |
| download | u-boot-342abc1472248b38698a52a6e4c66e30c9bfaad7.tar.gz | |
sunxi: boot0.h: allow RVBAR MMIO address customisation
To switch the ARMv8 Allwinner SoCs into the 64-bit AArch64 ISA, we need
to program the 64-bit start code address into an MMIO mapped register
that shadows the architectural RVBAR register.
This address is SoC specific, with just two versions out there so far.
Now a third address emerged, on a *variant* of an existing SoC (H616).
Change the boot0.h start code to make this address a Kconfig
selectable option, to allow easier maintenance.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Diffstat (limited to 'arch/arm/mach-sunxi/Kconfig')
| -rw-r--r-- | arch/arm/mach-sunxi/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig index 6be8a4de53..71a413108f 100644 --- a/arch/arm/mach-sunxi/Kconfig +++ b/arch/arm/mach-sunxi/Kconfig @@ -129,6 +129,18 @@ config SUNXI_SRAM_ADDRESS Some newer SoCs map the boot ROM at address 0 instead and move the SRAM to a different address. +config SUNXI_RVBAR_ADDRESS + hex + depends on ARM64 + default 0x09010040 if SUN50I_GEN_H6 + default 0x017000a0 + ---help--- + The read-only RVBAR system register holds the address of the first + instruction to execute after a reset. Allwinner cores provide a + writable MMIO backing store for this register, to allow to set the + entry point when switching to AArch64. This store is on different + addresses, depending on the SoC. + config SUNXI_A64_TIMER_ERRATUM bool |