diff mbox series

[v5,10/11] riscv: Add the Allwinner SoC family Kconfig option

Message ID 20230126045738.47903-11-samuel@sholland.org (mailing list archive)
State New, archived
Headers show
Series riscv: Allwinner D1/D1s platform support | expand

Commit Message

Samuel Holland Jan. 26, 2023, 4:57 a.m. UTC
Allwinner manufactures the sunxi family of application processors. This
includes the "sun8i" series of ARMv7 SoCs, the "sun50i" series of ARMv8
SoCs, and now the "sun20i" series of 64-bit RISC-V SoCs.

The first SoC in the sun20i series is D1, containing a single T-HEAD
C906 core. D1s is a low-pin-count variant of D1 with co-packaged DRAM.

Most peripherals are shared across the entire chip family. In fact, the
ARMv7 T113 SoC is pin-compatible and almost entirely register-compatible
with the D1s.

This means many existing device drivers can be reused. To facilitate
this reuse, name the symbol ARCH_SUNXI, since that is what the existing
drivers have as their dependency.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Samuel Holland <samuel@sholland.org>

(no changes since v4)

Changes in v4:
 - Drop the now-redundant 'select SIFIVE_PLIC'
 - Rebase on v6.2-rc1 + soc2arch-immutable

Changes in v3:
 - ARCH_SUNXI depends on MMU && !XIP_KERNEL

Changes in v2:
 - Sort Kconfig as if we had done s/SOC_/ARCH_/ for future-proofing

 arch/riscv/Kconfig.socs | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series


diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
index 659140309157..1cf69f958f10 100644
--- a/arch/riscv/Kconfig.socs
+++ b/arch/riscv/Kconfig.socs
@@ -32,6 +32,15 @@  config SOC_STARFIVE
 	  This enables support for StarFive SoC platform hardware.
+config ARCH_SUNXI
+	bool "Allwinner sun20i SoCs"
+	depends on MMU && !XIP_KERNEL
+	select SUN4I_TIMER
+	help
+	  This enables support for Allwinner sun20i platform hardware,
+	  including boards based on the D1 and D1s SoCs.
 config ARCH_VIRT
 	def_bool SOC_VIRT