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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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