62dbe72cb7
Each PSCI interface versions have different DT compatible strings like arm,psci-0.2, arm,psci-1.1 and so on. However, the same driver can be used for all the versions by adding #define DT_COMPAT for required version and #undef DT_COMPAT for default version. Add support for PSCI cold reset, warm reset and cpu-on function IDs. Signed-off-by: Girisha Dengi <girisha.dengi@intel.com> Signed-off-by: Navinkumar Balabakthan <navinkumar.balabakthan@intel.com>
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/*
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* Copyright (c) 2023 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/shell/shell.h>
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#include <zephyr/drivers/pm_cpu_ops.h>
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/* Zephyr kernel start address. */
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extern void __start(void);
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static int cmd_reboot_warm(const struct shell *shctx, size_t argc, char **argv)
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{
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ARG_UNUSED(shctx);
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ARG_UNUSED(argc);
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ARG_UNUSED(argv);
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int ret;
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ret = pm_system_reset(SYS_WARM_RESET);
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if (ret != 0) {
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shell_error(shctx, "Failed to perform system warm reset");
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}
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return ret;
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}
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static int cmd_reboot_cold(const struct shell *shctx, size_t argc, char **argv)
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{
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ARG_UNUSED(shctx);
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ARG_UNUSED(argc);
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ARG_UNUSED(argv);
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int ret;
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ret = pm_system_reset(SYS_COLD_RESET);
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if (ret != 0) {
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shell_error(shctx, "Failed to perform system cold reset");
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}
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return ret;
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}
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static int cmd_psci_cpuon(const struct shell *shctx, size_t argc, char **argv)
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{
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ARG_UNUSED(shctx);
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ARG_UNUSED(argc);
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long cpu_id;
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int result;
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errno = 0;
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cpu_id = strtol(argv[1], NULL, 10);
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if (cpu_id == 0 || cpu_id == LONG_MIN || cpu_id == LONG_MAX) {
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if (errno != 0) {
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shell_error(shctx, "psci: invalid input:%ld", cpu_id);
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return -EINVAL;
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}
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}
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result = pm_cpu_on((unsigned long)cpu_id, (uintptr_t)&__start);
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return result;
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}
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SHELL_STATIC_SUBCMD_SET_CREATE(
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sub_reboot,
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SHELL_CMD_ARG(warm, NULL, "System warm reset. Usage: <psci warm>", cmd_reboot_warm, 1, 0),
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SHELL_CMD_ARG(cold, NULL, "System cold reset. Usage: <psci cold>", cmd_reboot_cold, 1, 0),
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SHELL_CMD_ARG(cpuon, NULL, "Power-up the secondary CPU. Usage: <psci cpuon <cpuid>>",
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cmd_psci_cpuon, 2, 0),
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SHELL_SUBCMD_SET_END /* Array terminated. */
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);
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SHELL_CMD_REGISTER(psci, &sub_reboot, "ARM PSCI interface commands", NULL);
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