1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * K2HK: secure kernel command file
4  *
5  * (C) Copyright 2012-2014
6  *     Texas Instruments Incorporated, <www.ti.com>
7  */
8 
9 #include <common.h>
10 #include <command.h>
11 #include <image.h>
12 #include <mach/mon.h>
13 asm(".arch_extension sec\n\t");
14 
15 static int do_mon_install(cmd_tbl_t *cmdtp, int flag, int argc,
16 			  char * const argv[])
17 {
18 	u32 addr, dpsc_base = 0x1E80000, freq, load_addr, size;
19 	int     rcode = 0;
20 	struct image_header *header;
21 	u32 ecrypt_bm_addr = 0;
22 
23 	if (argc < 2)
24 		return CMD_RET_USAGE;
25 
26 	freq = CONFIG_SYS_HZ_CLOCK;
27 
28 	addr = simple_strtoul(argv[1], NULL, 16);
29 
30 	header = (struct image_header *)addr;
31 
32 	if (image_get_magic(header) != IH_MAGIC) {
33 		printf("## Please update monitor image\n");
34 		return -EFAULT;
35 	}
36 
37 	load_addr = image_get_load(header);
38 	size = image_get_data_size(header);
39 	memcpy((void *)load_addr, (void *)(addr + sizeof(struct image_header)),
40 	       size);
41 
42 	if (argc >=  3)
43 		ecrypt_bm_addr = simple_strtoul(argv[2], NULL, 16);
44 
45 	rcode = mon_install(load_addr, dpsc_base, freq, ecrypt_bm_addr);
46 	printf("## installed monitor @ 0x%x, freq [%d], status %d\n",
47 	       load_addr, freq, rcode);
48 
49 	return 0;
50 }
51 
52 U_BOOT_CMD(mon_install, 3, 0, do_mon_install,
53 	   "Install boot kernel at 'addr'",
54 	   ""
55 );
56 
57 static void core_spin(void)
58 {
59 	while (1) {
60 		asm volatile (
61 			"dsb\n"
62 			"isb\n"
63 			"wfi\n"
64 		);
65 	}
66 }
67 
68 int do_mon_power(cmd_tbl_t *cmdtp, int flag, int argc,
69 			char * const argv[])
70 {
71 	int     rcode = 0, core_id, on;
72 	void (*fn)(void);
73 
74 	fn = core_spin;
75 
76 	if (argc < 3)
77 		return CMD_RET_USAGE;
78 
79 	core_id = simple_strtoul(argv[1], NULL, 16);
80 	on = simple_strtoul(argv[2], NULL, 16);
81 
82 	if (on)
83 		rcode = mon_power_on(core_id, fn);
84 	else
85 		rcode = mon_power_off(core_id);
86 
87 	if (on) {
88 		if (!rcode)
89 			printf("core %d powered on successfully\n", core_id);
90 		else
91 			printf("core %d power on failure\n", core_id);
92 	} else {
93 		printf("core %d powered off successfully\n", core_id);
94 	}
95 
96 	return 0;
97 }
98 
99 U_BOOT_CMD(mon_power, 3, 0, do_mon_power,
100 	   "Power On/Off secondary core",
101 	   "mon_power <coreid> <oper>\n"
102 	   "- coreid (1-3) and oper (1 - ON, 0 - OFF)\n"
103 	   ""
104 );
105