mirror of
https://github.com/AsahiLinux/u-boot
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103 lines
2 KiB
C
103 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* K2HK: secure kernel command file
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*
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* (C) Copyright 2012-2014
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* Texas Instruments Incorporated, <www.ti.com>
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*/
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#include <command.h>
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#include <image.h>
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#include <mach/mon.h>
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asm(".arch_extension sec\n\t");
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static int do_mon_install(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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u32 addr, dpsc_base = 0x1E80000, freq, load_addr, size;
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int rcode = 0;
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struct legacy_img_hdr *header;
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u32 ecrypt_bm_addr = 0;
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if (argc < 2)
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return CMD_RET_USAGE;
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freq = CFG_SYS_HZ_CLOCK;
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addr = hextoul(argv[1], NULL);
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header = (struct legacy_img_hdr *)addr;
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if (image_get_magic(header) != IH_MAGIC) {
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printf("## Please update monitor image\n");
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return -EFAULT;
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}
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load_addr = image_get_load(header);
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size = image_get_data_size(header);
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memcpy((void *)load_addr, (void *)(addr + sizeof(struct legacy_img_hdr)),
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size);
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if (argc >= 3)
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ecrypt_bm_addr = hextoul(argv[2], NULL);
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rcode = mon_install(load_addr, dpsc_base, freq, ecrypt_bm_addr);
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printf("## installed monitor @ 0x%x, freq [%d], status %d\n",
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load_addr, freq, rcode);
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return 0;
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}
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U_BOOT_CMD(mon_install, 3, 0, do_mon_install,
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"Install boot kernel at 'addr'",
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""
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);
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static void core_spin(void)
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{
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while (1) {
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asm volatile (
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"dsb\n"
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"isb\n"
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"wfi\n"
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);
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}
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}
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int do_mon_power(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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int rcode = 0, core_id, on;
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void (*fn)(void);
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fn = core_spin;
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if (argc < 3)
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return CMD_RET_USAGE;
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core_id = hextoul(argv[1], NULL);
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on = hextoul(argv[2], NULL);
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if (on)
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rcode = mon_power_on(core_id, fn);
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else
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rcode = mon_power_off(core_id);
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if (on) {
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if (!rcode)
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printf("core %d powered on successfully\n", core_id);
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else
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printf("core %d power on failure\n", core_id);
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} else {
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printf("core %d powered off successfully\n", core_id);
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}
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return 0;
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}
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U_BOOT_CMD(mon_power, 3, 0, do_mon_power,
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"Power On/Off secondary core",
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"mon_power <coreid> <oper>\n"
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"- coreid (1-3) and oper (1 - ON, 0 - OFF)\n"
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""
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);
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