From: Anup Patel apatel@ventanamicro.com Sent: Saturday, January 15, 2022 12:20 AM To: Rick Jian-Zhi Chen(陳建志) rick@andestech.com; Bin Meng bmeng.cn@gmail.com Cc: Atish Patra atishp@atishpatra.org; Alistair Francis Alistair.Francis@wdc.com; Anup Patel anup@brainfault.org; U-Boot Mailing List u-boot@lists.denx.de; Anup Patel apatel@ventanamicro.com Subject: [PATCH 3/3] riscv: qemu: Implement is_flash_available() for MTD NOR

Currently, if MTD NOR is enabled then U-Boot tries to issue flash commands even when CFI flash DT node is not present. This causes access fault on RISC-V emulators or ISS which do not emulate CFI flash. To handle this issue, we implement is_flash_available() for qemu-riscv board which will return 1 only if CFI flash DT node is present.

Fixes: d248627f9d42 ("riscv: qemu: Enable MTD NOR flash support") Signed-off-by: Anup Patel apatel@ventanamicro.com

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board/emulation/qemu-riscv/qemu-riscv.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)

Reviewed-by: Rick Chen rick@andestech.com