target/linux/d1/patches-6.1/0034-riscv-Add-the-Allwinner-SoC-family-Kconfig-option.patch

   1 From f648ec2a040efde432876ee04240cb71e4c24d6e Mon Sep 17 00:00:00 2001
   2 From: Samuel Holland <samuel@sholland.org>
   3 Date: Sun, 16 May 2021 14:17:45 -0500
   4 Subject: [PATCH 034/117] riscv: Add the Allwinner SoC family Kconfig option
   5
   6 Allwinner manufactures the sunxi family of application processors. This
   7 includes the "sun8i" series of ARMv7 SoCs, the "sun50i" series of ARMv8
   8 SoCs, and now the "sun20i" series of 64-bit RISC-V SoCs.
   9
  10 The first SoC in the sun20i series is D1, containing a single T-HEAD
  11 C906 core. D1s is a low-pin-count variant of D1 with co-packaged DRAM.
  12
  13 Most peripherals are shared across the entire chip family. In fact, the
  14 ARMv7 T113 SoC is pin-compatible and almost entirely register-compatible
  15 with the D1s.
  16
  17 This means many existing device drivers can be reused. To facilitate
  18 this reuse, name the symbol ARCH_SUNXI, since that is what the existing
  19 drivers have as their dependency.
  20
  21 Reviewed-by: Heiko Stuebner <heiko@sntech.de>
  22 Tested-by: Heiko Stuebner <heiko@sntech.de>
  23 Signed-off-by: Samuel Holland <samuel@sholland.org>
  24 ---
  25  arch/riscv/Kconfig.socs | 9 +++++++++
  26  1 file changed, 9 insertions(+)
  27
  28 --- a/arch/riscv/Kconfig.socs
  29 +++ b/arch/riscv/Kconfig.socs
  30 @@ -1,5 +1,14 @@
  31  menu "SoC selection"
  32
  33 +config ARCH_SUNXI
  34 +       bool "Allwinner sun20i SoCs"
  35 +       select ERRATA_THEAD if MMU && !XIP_KERNEL
  36 +       select SIFIVE_PLIC
  37 +       select SUN4I_TIMER
  38 +       help
  39 +         This enables support for Allwinner sun20i platform hardware,
  40 +         including boards based on the D1 and D1s SoCs.
  41 +
  42  config SOC_MICROCHIP_POLARFIRE
  43         bool "Microchip PolarFire SoCs"
  44         select MCHP_CLK_MPFS