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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2015 Miao Yan <yanmiaobest@gmail.com>
*/
#include <common.h>
#include <command.h>
#include <env.h>
#include <errno.h>
#include <qfw.h>
#include <dm.h>
static struct udevice *qfw_dev;
static int qemu_fwcfg_cmd_list_firmware(void)
{
int ret;
struct fw_cfg_file_iter iter;
struct fw_file *file;
/* make sure fw_list is loaded */
ret = qfw_read_firmware_list(qfw_dev);
if (ret)
return ret;
for (file = qfw_file_iter_init(qfw_dev, &iter);
!qfw_file_iter_end(&iter);
file = qfw_file_iter_next(&iter)) {
printf("%08lx %-56s\n", file->addr, file->cfg.name);
}
return 0;
}
static int qemu_fwcfg_do_list(struct cmd_tbl *cmdtp, int flag,
int argc, char *const argv[])
{
if (qemu_fwcfg_cmd_list_firmware() < 0)
return CMD_RET_FAILURE;
return 0;
}
static int qemu_fwcfg_do_cpus(struct cmd_tbl *cmdtp, int flag,
int argc, char *const argv[])
{
printf("%d cpu(s) online\n", qfw_online_cpus(qfw_dev));
return 0;
}
static int qemu_fwcfg_do_load(struct cmd_tbl *cmdtp, int flag,
int argc, char *const argv[])
{
char *env;
ulong load_addr;
ulong initrd_addr;
env = env_get("loadaddr");
load_addr = env ?
hextoul(env, NULL) :
CONFIG_SYS_LOAD_ADDR;
env = env_get("ramdiskaddr");
initrd_addr = env ?
hextoul(env, NULL) :
#ifdef CFG_RAMDISK_ADDR
CFG_RAMDISK_ADDR;
#else
0;
#endif
if (argc == 2) {
load_addr = hextoul(argv[0], NULL);
initrd_addr = hextoul(argv[1], NULL);
} else if (argc == 1) {
load_addr = hextoul(argv[0], NULL);
}
if (!load_addr || !initrd_addr) {
printf("missing load or initrd address\n");
return CMD_RET_FAILURE;
}
return qemu_fwcfg_setup_kernel(qfw_dev, load_addr, initrd_addr);
}
static struct cmd_tbl fwcfg_commands[] = {
U_BOOT_CMD_MKENT(list, 0, 1, qemu_fwcfg_do_list, "", ""),
U_BOOT_CMD_MKENT(cpus, 0, 1, qemu_fwcfg_do_cpus, "", ""),
U_BOOT_CMD_MKENT(load, 2, 1, qemu_fwcfg_do_load, "", ""),
};
static int do_qemu_fw(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
int ret;
struct cmd_tbl *fwcfg_cmd;
ret = qfw_get_dev(&qfw_dev);
if (ret) {
printf("QEMU fw_cfg interface not found\n");
return CMD_RET_USAGE;
}
fwcfg_cmd = find_cmd_tbl(argv[1], fwcfg_commands,
ARRAY_SIZE(fwcfg_commands));
argc -= 2;
argv += 2;
if (!fwcfg_cmd || argc > fwcfg_cmd->maxargs)
return CMD_RET_USAGE;
ret = fwcfg_cmd->cmd(fwcfg_cmd, flag, argc, argv);
return cmd_process_error(fwcfg_cmd, ret);
}
U_BOOT_CMD(
qfw, 4, 1, do_qemu_fw,
"QEMU firmware interface",
"<command>\n"
" - list : print firmware(s) currently loaded\n"
" - cpus : print online cpu number\n"
" - load <kernel addr> <initrd addr> : load kernel and initrd (if any), and setup for zboot\n"
);
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