mirror of
				https://source.denx.de/u-boot/u-boot.git
				synced 2025-11-04 10:21:25 +01:00 
			
		
		
		
	Add a simple PMC for sandbox to permit tests to run. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
		
			
				
	
	
		
			82 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
// SPDX-License-Identifier: GPL-2.0
 | 
						|
/*
 | 
						|
 * Intel PMC command
 | 
						|
 *
 | 
						|
 * Copyright 2019 Google LLC
 | 
						|
 */
 | 
						|
 | 
						|
#include <common.h>
 | 
						|
#include <command.h>
 | 
						|
#include <dm.h>
 | 
						|
#include <power/acpi_pmc.h>
 | 
						|
 | 
						|
static int get_pmc_dev(struct udevice **devp)
 | 
						|
{
 | 
						|
	struct udevice *dev;
 | 
						|
	int ret;
 | 
						|
 | 
						|
	ret = uclass_first_device_err(UCLASS_ACPI_PMC, &dev);
 | 
						|
	if (ret) {
 | 
						|
		printf("Could not find device (err=%d)\n", ret);
 | 
						|
		return ret;
 | 
						|
	}
 | 
						|
	ret = pmc_init(dev);
 | 
						|
	if (ret) {
 | 
						|
		printf("Could not init device (err=%d)\n", ret);
 | 
						|
		return ret;
 | 
						|
	}
 | 
						|
	*devp = dev;
 | 
						|
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static int do_pmc_init(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 | 
						|
{
 | 
						|
	struct udevice *dev;
 | 
						|
	int ret;
 | 
						|
 | 
						|
	ret = get_pmc_dev(&dev);
 | 
						|
	if (ret)
 | 
						|
		return CMD_RET_FAILURE;
 | 
						|
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static int do_pmc_info(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 | 
						|
{
 | 
						|
	struct udevice *dev;
 | 
						|
	int ret;
 | 
						|
 | 
						|
	ret = get_pmc_dev(&dev);
 | 
						|
	if (ret)
 | 
						|
		return CMD_RET_FAILURE;
 | 
						|
	pmc_dump_info(dev);
 | 
						|
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static cmd_tbl_t cmd_pmc_sub[] = {
 | 
						|
	U_BOOT_CMD_MKENT(init, 0, 1, do_pmc_init, "", ""),
 | 
						|
	U_BOOT_CMD_MKENT(info, 0, 1, do_pmc_info, "", ""),
 | 
						|
};
 | 
						|
 | 
						|
static int do_pmc(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 | 
						|
{
 | 
						|
	const cmd_tbl_t *cp;
 | 
						|
 | 
						|
	if (argc < 2) /* no subcommand */
 | 
						|
		return cmd_usage(cmdtp);
 | 
						|
 | 
						|
	cp = find_cmd_tbl(argv[1], &cmd_pmc_sub[0], ARRAY_SIZE(cmd_pmc_sub));
 | 
						|
	if (!cp)
 | 
						|
		return CMD_RET_USAGE;
 | 
						|
 | 
						|
	return cp->cmd(cmdtp, flag, argc, argv);
 | 
						|
}
 | 
						|
 | 
						|
U_BOOT_CMD(
 | 
						|
	pmc, 2, 1, do_pmc, "Power-management controller info",
 | 
						|
	"info - read state and show info about the PMC\n"
 | 
						|
	"pmc init - read state from the PMC\n"
 | 
						|
	);
 |