| Vipin KUMAR | 81c0ebf | 2010-01-15 19:15:43 +0530 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2009 |
| 3 | * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com. |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <common.h> |
| 25 | #include <asm/io.h> |
| 26 | #include <asm/arch/hardware.h> |
| 27 | #include <asm/arch/spr_syscntl.h> |
| 28 | |
| 29 | void reset_cpu(ulong ignored) |
| 30 | { |
| 31 | struct syscntl_regs *syscntl_regs_p = |
| 32 | (struct syscntl_regs *)CONFIG_SPEAR_SYSCNTLBASE; |
| 33 | |
| 34 | printf("System is going to reboot ...\n"); |
| 35 | |
| 36 | /* |
| 37 | * This 1 second delay will allow the above message |
| 38 | * to be printed before reset |
| 39 | */ |
| 40 | udelay((1000 * 1000)); |
| 41 | |
| 42 | /* Going into slow mode before resetting SOC */ |
| 43 | writel(0x02, &syscntl_regs_p->scctrl); |
| 44 | |
| 45 | /* |
| 46 | * Writing any value to the system status register will |
| 47 | * reset the SoC |
| 48 | */ |
| 49 | writel(0x00, &syscntl_regs_p->scsysstat); |
| 50 | |
| 51 | /* system will restart */ |
| 52 | while (1) |
| 53 | ; |
| 54 | } |