[PATCH v6 02/17] riscv: sifive: fu540: Use OTP DM driver for serial environment variable

[Jagan Teki]

On Sun, Mar 29, 2020 at 10:36 PM Pragnesh Patel
<pragnesh.patel at sifive.com> wrote:
>
> Use the OTP DM driver to set the serial environment variable.
>
> Signed-off-by: Pragnesh Patel <pragnesh.patel at sifive.com>
> ---
>  arch/riscv/dts/fu540-c000-u-boot.dtsi         |  14 +++
>  .../dts/hifive-unleashed-a00-u-boot.dtsi      |   6 +
>  board/sifive/fu540/Kconfig                    |   2 +
>  board/sifive/fu540/fu540.c                    | 111 ++++++------------
>  4 files changed, 61 insertions(+), 72 deletions(-)
>  create mode 100644 arch/riscv/dts/fu540-c000-u-boot.dtsi
>  create mode 100644 arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi
>
> diff --git a/arch/riscv/dts/fu540-c000-u-boot.dtsi b/arch/riscv/dts/fu540-c000-u-boot.dtsi
> new file mode 100644
> index 0000000000..db55773bd2
> --- /dev/null
> +++ b/arch/riscv/dts/fu540-c000-u-boot.dtsi
> @@ -0,0 +1,14 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> +/*
> + * (C) Copyright 2019 SiFive, Inc
> + */
> +
> +/ {
> +       soc {
> +               otp: otp at 10070000 {
> +                       compatible = "sifive,fu540-c000-otp";
> +                       reg = <0x0 0x10070000 0x0 0x0FFF>;
> +                       fuse-count = <0x1000>;
> +               };
> +       };
> +};
> diff --git a/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi b/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi
> new file mode 100644
> index 0000000000..f1735c1385
> --- /dev/null
> +++ b/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi
> @@ -0,0 +1,6 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> +/*
> + * Copyright (C) 2019 SiFive, Inc
> + */
> +
> +#include "fu540-c000-u-boot.dtsi"
> diff --git a/board/sifive/fu540/Kconfig b/board/sifive/fu540/Kconfig
> index 5ca21474de..900197bbb2 100644
> --- a/board/sifive/fu540/Kconfig
> +++ b/board/sifive/fu540/Kconfig
> @@ -48,5 +48,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
>         imply SIFIVE_GPIO
>         imply CMD_GPIO
>         imply SMP
> +       imply MISC
> +       imply SIFIVE_OTP

Mark this default y if it is SIFIVE.

Jagan.