mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
5d21406516
Given that boot monitor image is being generated to a specific target location depending on the SoC and U-boot relies on addr_mon env variable to be aligned with boot monitor target location. When ever the target address gets updated in boot monitor, it is difficult to sync between u-boot and boot monitor and also there is no way to update user that boot monitor image is updated. To avoid this problem, boot monitor image is being generated with mkimage header. Adding support in mon_install command for parsing this header. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
102 lines
2.0 KiB
C
102 lines
2.0 KiB
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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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(cmd_tbl_t *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 image_header *header;
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if (argc < 2)
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return CMD_RET_USAGE;
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freq = CONFIG_SYS_HZ_CLOCK;
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addr = simple_strtoul(argv[1], NULL, 16);
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header = (struct image_header *)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 image_header)),
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size);
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rcode = mon_install(load_addr, dpsc_base, freq);
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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, 2, 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(cmd_tbl_t *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 = simple_strtoul(argv[1], NULL, 16);
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on = simple_strtoul(argv[2], NULL, 16);
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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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