Commit | Line | Data |
---|---|---|
14e067c1 JSB |
1 | /* |
2 | * am33xx-restart.c - Code common to all AM33xx machines. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | #include <linux/kernel.h> | |
9 | ||
10 | #include "common.h" | |
11 | #include "prm-regbits-33xx.h" | |
12 | #include "prm33xx.h" | |
13 | ||
14 | /** | |
15 | * am3xx_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 | void am33xx_restart(char mode, const char *cmd) | |
23 | { | |
24 | /* TODO: Handle mode and cmd if necessary */ | |
25 | ||
26 | am33xx_prm_rmw_reg_bits(AM33XX_GLOBAL_WARM_SW_RST_MASK, | |
27 | AM33XX_GLOBAL_WARM_SW_RST_MASK, | |
28 | AM33XX_PRM_DEVICE_MOD, | |
29 | AM33XX_PRM_RSTCTRL_OFFSET); | |
30 | ||
31 | /* OCP barrier */ | |
32 | (void)am33xx_prm_read_reg(AM33XX_PRM_DEVICE_MOD, | |
33 | AM33XX_PRM_RSTCTRL_OFFSET); | |
34 | } |