Re: [PATCH] RISC-V: defconfig: enable MMC & SPI for RISC-V

[Atish Patra]

On 6/26/19 9:00 AM, Paul Walmsley wrote:
> On Tue, 25 Jun 2019, Atish Patra wrote:
>
> > Currently, riscv upstream defconfig doesn't let you boot
> > through userspace if rootfs is on the SD card.
> >
> > Let's enable MMC & SPI drivers as well so that one can boot
> > to the user space using default config in upstream kernel.
> >
> > Signed-off-by: Atish Patra <atish.patra@xxxxxxx>
>
> Thanks.  The patch also enables CONFIG_DEVTMPFS_MOUNT, but doesn't mention
> it, so the following is what I've queued for v5.2-rc.  Let me know if you
> object to it.

Apologies for forgetting about CONFIG_DEVTMPFS_MOUNT in the commit text. 
Thanks for the update.

> - Paul
>
>
> From: Atish Patra <atish.patra@xxxxxxx>
> Date: Tue, 25 Jun 2019 15:56:36 -0700
> Subject: [PATCH] RISC-V: defconfig: enable MMC & SPI for RISC-V
>
> Currently, riscv upstream defconfig doesn't let you boot
> through userspace if rootfs is on the SD card.
>
> Let's enable MMC & SPI drivers as well so that one can boot
> to the user space using default config in upstream kernel.
>
> While here, enable automatic mounting of devtmpfs to simplify
> kernel testing with minimal root filesystems. (pjw)
>
> Signed-off-by: Atish Patra <atish.patra@xxxxxxx>
> Reviewed-by: Palmer Dabbelt <palmer@xxxxxxxxxx>
> [paul.walmsley@xxxxxxxxxx: mention the DEVTMPFS_MOUNT change in the
>   patch description]
> Signed-off-by: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
> ---
>   arch/riscv/configs/defconfig | 5 +++++
>   1 file changed, 5 insertions(+)
>
> diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig
> index 4f02967e55de..04944fb4fa7a 100644
> --- a/arch/riscv/configs/defconfig
> +++ b/arch/riscv/configs/defconfig
> @@ -69,6 +69,7 @@ CONFIG_VIRTIO_MMIO=y
>   CONFIG_CLK_SIFIVE=y
>   CONFIG_CLK_SIFIVE_FU540_PRCI=y
>   CONFIG_SIFIVE_PLIC=y
> +CONFIG_SPI_SIFIVE=y
>   CONFIG_EXT4_FS=y
>   CONFIG_EXT4_FS_POSIX_ACL=y
>   CONFIG_AUTOFS4_FS=y
> @@ -84,4 +85,8 @@ CONFIG_ROOT_NFS=y
>   CONFIG_CRYPTO_USER_API_HASH=y
>   CONFIG_CRYPTO_DEV_VIRTIO=y
>   CONFIG_PRINTK_TIME=y
> +CONFIG_SPI=y
> +CONFIG_MMC_SPI=y
> +CONFIG_MMC=y
> +CONFIG_DEVTMPFS_MOUNT=y
>   # CONFIG_RCU_TRACE is not set


--
Regards,
Atish