[PATCH v2 0/4] QEMU spike machine support for U-Boot

Anup Patel
2022-01-27T06:11:44Z

We can use same U-Boot binary compiled using qemu-riscv64_smode_defconfig
on QEMU virt machine and QEMU spike machine. To achieve this, we need HTIF
console support for U-Boot QEMU RISC-V board hence this series.

To test this series with latest OpenSBI, we can use the following command:
qemu-system-riscv64 -M spike -m 256M -display none -serial stdio \
-bios opensbi/build/platform/generic/firmware/fw_jump.bin -kernel \
./u-boot/u-boot.bin

These patch can be found in qemu_riscv_htif_v2 branch at:
https://github.com/avpatel/u-boot.git

Changes since v1:
- Use ofnode_by_compatible() in PATCH3
- Updated QEMU RISC-V documentation in PATCH4

Anup Patel (4):
serial: Add RISC-V HTIF console driver
riscv: qemu: Enable HTIF console support
riscv: qemu: Implement is_flash_available() for MTD NOR
doc: qemu-riscv: Update documentation for QEMU spike machine

board/emulation/qemu-riscv/Kconfig | 1 +
board/emulation/qemu-riscv/qemu-riscv.c | 12 ++
doc/board/emulation/qemu-riscv.rst | 48 ++++---
drivers/serial/Kconfig | 8 ++
drivers/serial/Makefile | 1 +
drivers/serial/serial_htif.c | 178 ++++++++++++++++++++++++
6 files changed, 232 insertions(+), 16 deletions(-)
create mode 100644 drivers/serial/serial_htif.c

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2.25.1