From 66ffe5783b6340977ead5782cce9b63edfc0e348 Mon Sep 17 00:00:00 2001 From: Lukas Auer Date: Thu, 22 Nov 2018 11:26:36 +0100 Subject: riscv: qemu: detect and boot the kernel passed by QEMU QEMU embeds the location of the kernel image in the device tree. Store this address in the environment as variable kernel_start. It is used in the board-local distro boot command QEMU to boot the kernel with the U-Boot device tree. The QEMU boot command is added as the first boot target device. Signed-off-by: Lukas Auer Reviewed-by: Bin Meng Reviewed-by: Alexander Graf --- include/configs/qemu-riscv.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/configs/qemu-riscv.h b/include/configs/qemu-riscv.h index 66d61bd896d..b29d155d095 100644 --- a/include/configs/qemu-riscv.h +++ b/include/configs/qemu-riscv.h @@ -21,11 +21,21 @@ #define CONFIG_ENV_SIZE SZ_4K #define BOOT_TARGET_DEVICES(func) \ + func(QEMU, qemu, na) \ func(VIRTIO, virtio, 0) \ func(DHCP, dhcp, na) #include +#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" \ -- cgit v1.2.3