1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * K2HK: secure kernel command file
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * (C) Copyright 2012-2014
5*4882a593Smuzhiyun * Texas Instruments Incorporated, <www.ti.com>
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <common.h>
11*4882a593Smuzhiyun #include <command.h>
12*4882a593Smuzhiyun #include <image.h>
13*4882a593Smuzhiyun #include <mach/mon.h>
14*4882a593Smuzhiyun asm(".arch_extension sec\n\t");
15*4882a593Smuzhiyun
do_mon_install(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])16*4882a593Smuzhiyun static int do_mon_install(cmd_tbl_t *cmdtp, int flag, int argc,
17*4882a593Smuzhiyun char * const argv[])
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun u32 addr, dpsc_base = 0x1E80000, freq, load_addr, size;
20*4882a593Smuzhiyun int rcode = 0;
21*4882a593Smuzhiyun struct image_header *header;
22*4882a593Smuzhiyun u32 ecrypt_bm_addr = 0;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun if (argc < 2)
25*4882a593Smuzhiyun return CMD_RET_USAGE;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun freq = CONFIG_SYS_HZ_CLOCK;
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun addr = simple_strtoul(argv[1], NULL, 16);
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun header = (struct image_header *)addr;
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun if (image_get_magic(header) != IH_MAGIC) {
34*4882a593Smuzhiyun printf("## Please update monitor image\n");
35*4882a593Smuzhiyun return -EFAULT;
36*4882a593Smuzhiyun }
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun load_addr = image_get_load(header);
39*4882a593Smuzhiyun size = image_get_data_size(header);
40*4882a593Smuzhiyun memcpy((void *)load_addr, (void *)(addr + sizeof(struct image_header)),
41*4882a593Smuzhiyun size);
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun if (argc >= 3)
44*4882a593Smuzhiyun ecrypt_bm_addr = simple_strtoul(argv[2], NULL, 16);
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun rcode = mon_install(load_addr, dpsc_base, freq, ecrypt_bm_addr);
47*4882a593Smuzhiyun printf("## installed monitor @ 0x%x, freq [%d], status %d\n",
48*4882a593Smuzhiyun load_addr, freq, rcode);
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun return 0;
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun U_BOOT_CMD(mon_install, 3, 0, do_mon_install,
54*4882a593Smuzhiyun "Install boot kernel at 'addr'",
55*4882a593Smuzhiyun ""
56*4882a593Smuzhiyun );
57*4882a593Smuzhiyun
core_spin(void)58*4882a593Smuzhiyun static void core_spin(void)
59*4882a593Smuzhiyun {
60*4882a593Smuzhiyun while (1) {
61*4882a593Smuzhiyun asm volatile (
62*4882a593Smuzhiyun "dsb\n"
63*4882a593Smuzhiyun "isb\n"
64*4882a593Smuzhiyun "wfi\n"
65*4882a593Smuzhiyun );
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun }
68*4882a593Smuzhiyun
do_mon_power(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])69*4882a593Smuzhiyun int do_mon_power(cmd_tbl_t *cmdtp, int flag, int argc,
70*4882a593Smuzhiyun char * const argv[])
71*4882a593Smuzhiyun {
72*4882a593Smuzhiyun int rcode = 0, core_id, on;
73*4882a593Smuzhiyun void (*fn)(void);
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun fn = core_spin;
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun if (argc < 3)
78*4882a593Smuzhiyun return CMD_RET_USAGE;
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun core_id = simple_strtoul(argv[1], NULL, 16);
81*4882a593Smuzhiyun on = simple_strtoul(argv[2], NULL, 16);
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun if (on)
84*4882a593Smuzhiyun rcode = mon_power_on(core_id, fn);
85*4882a593Smuzhiyun else
86*4882a593Smuzhiyun rcode = mon_power_off(core_id);
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun if (on) {
89*4882a593Smuzhiyun if (!rcode)
90*4882a593Smuzhiyun printf("core %d powered on successfully\n", core_id);
91*4882a593Smuzhiyun else
92*4882a593Smuzhiyun printf("core %d power on failure\n", core_id);
93*4882a593Smuzhiyun } else {
94*4882a593Smuzhiyun printf("core %d powered off successfully\n", core_id);
95*4882a593Smuzhiyun }
96*4882a593Smuzhiyun
97*4882a593Smuzhiyun return 0;
98*4882a593Smuzhiyun }
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun U_BOOT_CMD(mon_power, 3, 0, do_mon_power,
101*4882a593Smuzhiyun "Power On/Off secondary core",
102*4882a593Smuzhiyun "mon_power <coreid> <oper>\n"
103*4882a593Smuzhiyun "- coreid (1-3) and oper (1 - ON, 0 - OFF)\n"
104*4882a593Smuzhiyun ""
105*4882a593Smuzhiyun );
106