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riscv: qemu: Remove out-of-date "riscv, kernel-start" handling

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Commit 66ffe57 ("riscv: qemu: detect and boot the kernel passed by QEMU")
added some logic to handle "riscv,kernel-start" in DT and stored the
address to an environment variable kernel_start.

However this "riscv,kernel-start" has never been an upstream DT binding.
The upstream QEMU never generates such a DT either. Presumably U-Boot
development was based on a downstream QEMU fork.

Now we drop all codes in commit 66ffe57, except that BOARD_LATE_INIT
is kept for later use.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng
2023-07-23 12:40:40 +08:00
committed by Leo Yu-Chi Liang
parent 608b80b5b8
commit 124308e67b
2 changed files with 0 additions and 34 deletions
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24
board/emulation/qemu-riscv/qemu-riscv.c
View File

@@ -41,30 +41,6 @@ int board_init(void)
int board_late_init(void)
{
ulong kernel_start;
ofnode chosen_node;
int ret;
chosen_node = ofnode_path("/chosen");
if (!ofnode_valid(chosen_node)) {
debug("No chosen node found, can't get kernel start address\n");
return 0;
}
#ifdef CONFIG_ARCH_RV64I
ret = ofnode_read_u64(chosen_node, "riscv,kernel-start",
(u64 *)&kernel_start);
#else
ret = ofnode_read_u32(chosen_node, "riscv,kernel-start",
(u32 *)&kernel_start);
#endif
if (ret) {
debug("Can't find kernel start address in device tree\n");
return 0;
}
env_set_hex("kernel_start", kernel_start);
return 0;
}

10
include/configs/qemu-riscv.h
View File

@@ -22,22 +22,12 @@
"stderr=serial,vidconsole\0"
#define BOOT_TARGET_DEVICES(func) \
func(QEMU, qemu, na) \
func(VIRTIO, virtio, 0) \
func(SCSI, scsi, 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 CFG_EXTRA_ENV_SETTINGS \
CFG_STD_DEVICES_SETTINGS \
"fdt_high=0xffffffffffffffff\0" \