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

On Sun, Mar 29, 2020 at 10:36 PM Pragnesh Patel pragnesh.patel@sifive.com wrote:

Use the OTP DM driver to set the serial environment variable.

Signed-off-by: Pragnesh Patel pragnesh.patel@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@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.