// SPDX-License-Identifier: GPL-2.0-only #include <linux/kernel.h> #include <linux/init.h> #include <linux/reboot.h> #include "iomap.h" #include "common.h" #include "control.h" #include "prm3xxx.h" #define TI81XX_PRM_DEVICE_RSTCTRL 0x00a0 #define TI81XX_GLOBAL_RST_COLD BIT(1) /** * ti81xx_restart - trigger a software restart of the SoC * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c * @cmd: passed from the userspace program rebooting the system (if provided) * * Resets the SoC. For @cmd, see the 'reboot' syscall in * kernel/sys.c. No return value. * * NOTE: Warm reset does not seem to work, may require resetting * clocks to bypass mode. */ void ti81xx_restart(enum reboot_mode mode, const char *cmd) { omap2_prm_set_mod_reg_bits(TI81XX_GLOBAL_RST_COLD, 0, TI81XX_PRM_DEVICE_RSTCTRL); while (1) ; }