Am Montag, 15. August 2022, 18:56:23 CEST schrieb Conor.Dooley@xxxxxxxxxxxxx: > 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. On the other hand, I don't really think it's that hard to change things after the fact? I.e. ARCH_SUNXI is pretty much set in stone anyway, so there isn't very much that _could_ change without affecting most driver subsystems in the kernel. So I don't think we'd actually need to wait with the Allwinner symbol. Heiko > 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. > > > > > Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx> > > --- > > > > 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 > > > > _______________________________________________ > linux-riscv mailing list > linux-riscv@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-riscv >
