Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
bc7235c9 TL |
2 | #include <linux/kernel.h> |
3 | #include <linux/init.h> | |
4 | #include <linux/reboot.h> | |
5 | ||
6 | #include "iomap.h" | |
7 | #include "common.h" | |
8 | #include "control.h" | |
9 | #include "prm3xxx.h" | |
10 | ||
11 | #define TI81XX_PRM_DEVICE_RSTCTRL 0x00a0 | |
12 | #define TI81XX_GLOBAL_RST_COLD BIT(1) | |
13 | ||
14 | /** | |
15 | * ti81xx_restart - trigger a software restart of the SoC | |
16 | * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c | |
17 | * @cmd: passed from the userspace program rebooting the system (if provided) | |
18 | * | |
19 | * Resets the SoC. For @cmd, see the 'reboot' syscall in | |
20 | * kernel/sys.c. No return value. | |
21 | * | |
22 | * NOTE: Warm reset does not seem to work, may require resetting | |
23 | * clocks to bypass mode. | |
24 | */ | |
25 | void ti81xx_restart(enum reboot_mode mode, const char *cmd) | |
26 | { | |
27 | omap2_prm_set_mod_reg_bits(TI81XX_GLOBAL_RST_COLD, 0, | |
28 | TI81XX_PRM_DEVICE_RSTCTRL); | |
29 | while (1); | |
30 | } |