Re: [PATCH 05/12] riscv: Add the Allwinner SoC family Kconfig option
From: <Conor.Dooley@microchip.com>
Date: 2022-08-15 16:56:58
Also in:
linux-riscv, linux-sunxi, lkml
On 15/08/2022 06:08, Samuel Holland wrote:
EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe 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.
Hey Samuel, I think this and patch 12/12 with the defconfig changes should be deferred until post LPC (which still leaves plenty of time for making the 6.1 merge window). We already have like 4 different approaches between the existing SOC_FOO symbols & two more when D1 stuff and the Renesas stuff is considered. Plan is to decide at LPC on one approach for what to do with Kconfig.socs & to me it seems like a good idea to do what's being done here - it's likely that further arm vendors will move and keeping the common symbols makes a lot of sense to me... Thanks, Conor.
quoted hunk ↗ jump to hunk
Signed-off-by: Samuel Holland <samuel@sholland.org> --- arch/riscv/Kconfig.socs | 9 +++++++++ 1 file changed, 9 insertions(+)diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs index 69774bb362d6..1caacbfac1a5 100644 --- a/arch/riscv/Kconfig.socs +++ b/arch/riscv/Kconfig.socs@@ -1,5 +1,14 @@ menu "SoC selection" +config ARCH_SUNXI + bool "Allwinner sun20i SoCs" + select ERRATA_THEAD if MMU && !XIP_KERNEL + select SIFIVE_PLIC + select SUN4I_TIMER + help + This enables support for Allwinner sun20i platform hardware, + including boards based on the D1 and D1s SoCs. + config SOC_MICROCHIP_POLARFIRE bool "Microchip PolarFire SoCs" select MCHP_CLK_MPFS --2.35.1