u-boot-brain/include/configs/qemu-riscv.h
David Abdurachmanov 081c660201 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>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-09 16:46:13 +08:00

56 lines
1.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
*/
#ifndef __CONFIG_H
#define __CONFIG_H
#include <linux/sizes.h>
#define CONFIG_SYS_SDRAM_BASE 0x80000000
#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_2M)
#define CONFIG_SYS_LOAD_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_2M)
#define CONFIG_SYS_MALLOC_LEN SZ_8M
#define CONFIG_SYS_BOOTM_LEN SZ_64M
#define CONFIG_STANDALONE_LOAD_ADDR 0x80200000
/* Environment options */
#define CONFIG_ENV_SIZE SZ_4K
#define BOOT_TARGET_DEVICES(func) \
func(QEMU, qemu, na) \
func(VIRTIO, virtio, 0) \
func(DHCP, dhcp, na)
#include <config_distro_bootcmd.h>
#define BOOTENV_DEV_QEMU(devtypeu, devtypel, instance) \
"bootcmd_qemu=" \
"if env exists kernel_start; then " \
"bootm ${kernel_start} - ${fdtcontroladdr};" \
"fi;\0"
#define BOOTENV_DEV_NAME_QEMU(devtypeu, devtypel, instance) \
"qemu "
#define CONFIG_EXTRA_ENV_SETTINGS \
"fdt_high=0xffffffffffffffff\0" \
"initrd_high=0xffffffffffffffff\0" \
"kernel_addr_r=0x84000000\0" \
"fdt_addr_r=0x88000000\0" \
"scriptaddr=0x88100000\0" \
"pxefile_addr_r=0x88200000\0" \
"ramdisk_addr_r=0x88300000\0" \
BOOTENV
#define CONFIG_PREBOOT \
"setenv fdt_addr ${fdtcontroladdr};" \
"fdt addr ${fdtcontroladdr};"
#endif /* __CONFIG_H */