-----Original Message----- From: David Abdurachmanov david.abdurachmanov@gmail.com Sent: Tuesday, April 9, 2019 4:13 PM To: rick@andestech.com; Atish Patra Atish.Patra@wdc.com; Anup Patel Anup.Patel@wdc.com; lukas.auer@aisec.fraunhofer.de; u- boot@lists.denx.de Cc: David Abdurachmanov david.abdurachmanov@gmail.com Subject: [PATCH 2/2] riscv: qemu-riscv.h: define CONFIG_PREBOOT (enables extlinux)
Set fdt_addr variable, which is needed for extlinux to find FDT. Otherwise booting kernel using extlinux results in missing FDT.
Also run fdt addr with FDT address so that fdt commands would work out of the box in U-Boot prompt.
This is successfully used by Fedora/RISCV with 5.1-rc3+ kernel using OpenSBI -> U-Boot (S-mode) [extlinux] -> Kernel setup.
Signed-off-by: David Abdurachmanov david.abdurachmanov@gmail.com
include/configs/qemu-riscv.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/configs/qemu-riscv.h b/include/configs/qemu-riscv.h index 22a5cd7365..b7110edebc 100644 --- a/include/configs/qemu-riscv.h +++ b/include/configs/qemu-riscv.h @@ -48,4 +48,8 @@ "ramdisk_addr_r=0x88300000\0" \ BOOTENV
+#define CONFIG_PREBOOT \
- "setenv fdt_addr ${fdtcontroladdr};" \
- "fdt addr ${fdtcontroladdr};"
#endif /* __CONFIG_H */
2.20.1
Looks good to me.
Reviewed-by: Anup Patel anup.patel@wdc.com
Regards, Anup