linux-kernel - Re: [PATCH v2 12/12] riscv: defconfig: Enable the Allwinner D1 platform and drivers

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Date:   Fri, 02 Dec 2022 16:34:20 +0800
From:   Icenowy Zheng <uwu@...nowy.me>
To:     Guo Ren <guoren@...nel.org>, Samuel Holland <samuel@...lland.org>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        linux-sunxi@...ts.linux.dev, Palmer Dabbelt <palmer@...belt.com>,
        Conor Dooley <conor@...nel.org>,
        linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Jisheng Zhang <jszhang@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andre Przywara <andre.przywara@....com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Anup Patel <apatel@...tanamicro.com>,
        Atish Patra <atishp@...osinc.com>,
        Christian Hewitt <christianshewitt@...il.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Heinrich Schuchardt <heinrich.schuchardt@...onical.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Stanislav Jakubek <stano.jakubek@...il.com>
Subject: Re: [PATCH v2 12/12] riscv: defconfig: Enable the Allwinner D1
 platform and drivers

在 2022-11-26星期六的 08:24 +0800，Guo Ren写道：
> On Sat, Nov 26, 2022 at 7:47 AM Samuel Holland <samuel@...lland.org>
> wrote:
> > 
> > Now that several D1-based boards are supported, enable the platform
> > in
> > our defconfig. Build in the drivers which are necessary to boot,
> > such as
> > the pinctrl, MMC, RTC (which provides critical clocks), SPI (for
> > flash),
> > and watchdog (which may be left enabled by the bootloader). Other
> > common
> > onboard peripherals are enabled as modules.
> > 
> > Signed-off-by: Samuel Holland <samuel@...lland.org>
> > ---
> > 
> > (no changes since v1)
> > 
> >  arch/riscv/configs/defconfig | 23 ++++++++++++++++++++++-
> >  1 file changed, 22 insertions(+), 1 deletion(-)
> > 
> > diff --git a/arch/riscv/configs/defconfig
> > b/arch/riscv/configs/defconfig
> > index 05fd5fcf24f9..8dfe0550c0e6 100644
> > --- a/arch/riscv/configs/defconfig
> > +++ b/arch/riscv/configs/defconfig
> > @@ -25,6 +25,7 @@ CONFIG_BLK_DEV_INITRD=y
> >  CONFIG_EXPERT=y
> >  # CONFIG_SYSFS_SYSCALL is not set
> >  CONFIG_PROFILING=y
> > +CONFIG_ARCH_SUNXI=y
> >  CONFIG_SOC_MICROCHIP_POLARFIRE=y
> >  CONFIG_SOC_SIFIVE=y
> >  CONFIG_SOC_STARFIVE=y
> > @@ -118,22 +119,31 @@ CONFIG_VIRTIO_NET=y
> >  CONFIG_MACB=y
> >  CONFIG_E1000E=y
> >  CONFIG_R8169=y
> > +CONFIG_STMMAC_ETH=m
> >  CONFIG_MICROSEMI_PHY=y
> >  CONFIG_INPUT_MOUSEDEV=y
> > +CONFIG_KEYBOARD_SUN4I_LRADC=m
> >  CONFIG_SERIAL_8250=y
> >  CONFIG_SERIAL_8250_CONSOLE=y
> > +CONFIG_SERIAL_8250_DW=y
> >  CONFIG_SERIAL_OF_PLATFORM=y
> >  CONFIG_VIRTIO_CONSOLE=y
> >  CONFIG_HW_RANDOM=y
> >  CONFIG_HW_RANDOM_VIRTIO=y
> > +CONFIG_I2C_MV64XXX=m
> >  CONFIG_SPI=y
> >  CONFIG_SPI_SIFIVE=y
> > +CONFIG_SPI_SUN6I=y
> >  # CONFIG_PTP_1588_CLOCK is not set
> > -CONFIG_GPIOLIB=y
> >  CONFIG_GPIO_SIFIVE=y
> > +CONFIG_WATCHDOG=y
> > +CONFIG_SUNXI_WATCHDOG=y
> > +CONFIG_REGULATOR=y
> > +CONFIG_REGULATOR_FIXED_VOLTAGE=y
> >  CONFIG_DRM=m
> >  CONFIG_DRM_RADEON=m
> >  CONFIG_DRM_NOUVEAU=m
> > +CONFIG_DRM_SUN4I=m
> >  CONFIG_DRM_VIRTIO_GPU=m
> >  CONFIG_FB=y
> >  CONFIG_FRAMEBUFFER_CONSOLE=y
> > @@ -146,19 +156,30 @@ CONFIG_USB_OHCI_HCD=y
> >  CONFIG_USB_OHCI_HCD_PLATFORM=y
> >  CONFIG_USB_STORAGE=y
> >  CONFIG_USB_UAS=y
> > +CONFIG_USB_MUSB_HDRC=m
> > +CONFIG_USB_MUSB_SUNXI=m
> > +CONFIG_NOP_USB_XCEIV=m
> >  CONFIG_MMC=y
> >  CONFIG_MMC_SDHCI=y
> >  CONFIG_MMC_SDHCI_PLTFM=y
> >  CONFIG_MMC_SDHCI_CADENCE=y
> >  CONFIG_MMC_SPI=y
> > +CONFIG_MMC_SUNXI=y
> >  CONFIG_RTC_CLASS=y
> > +CONFIG_RTC_DRV_SUN6I=y
> > +CONFIG_DMADEVICES=y
> > +CONFIG_DMA_SUN6I=m
> >  CONFIG_VIRTIO_PCI=y
> >  CONFIG_VIRTIO_BALLOON=y
> >  CONFIG_VIRTIO_INPUT=y
> >  CONFIG_VIRTIO_MMIO=y
> > +CONFIG_SUN8I_DE2_CCU=m
> > +CONFIG_SUN50I_IOMMU=y
> Do we need IOMMU?

It's utilized by some peripherals, e.g. the display engine.

> 
> Others:
> Reviewed-by: Guo Ren <guoren@...nel.org>
> 
> >  CONFIG_RPMSG_CHAR=y
> >  CONFIG_RPMSG_CTRL=y
> >  CONFIG_RPMSG_VIRTIO=y
> > +CONFIG_PHY_SUN4I_USB=m
> > +CONFIG_NVMEM_SUNXI_SID=y
> >  CONFIG_EXT4_FS=y
> >  CONFIG_EXT4_FS_POSIX_ACL=y
> >  CONFIG_EXT4_FS_SECURITY=y
> > --
> > 2.37.4
> > 
> 
>