| /* |
| * (C) Copyright 2008 Texas Insturments |
| * |
| * (C) Copyright 2002 |
| * Sysgo Real-Time Solutions, GmbH <www.elinos.com> |
| * Marius Groeger <mgroeger@sysgo.de> |
| * |
| * (C) Copyright 2002 |
| * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| /* |
| * CPU specific code |
| */ |
| |
| #include <common.h> |
| #include <command.h> |
| #include <asm/arch/system_c2000.h> |
| #include <asm/arch/cache_c2000.h> |
| #ifndef CONFIG_L2_OFF |
| #include <asm/arch/sys_proto.h> |
| #endif |
| |
| static void cache_flush(void); |
| |
| int cleanup_before_linux(void) |
| { |
| unsigned int i; |
| |
| #if 0 |
| /* |
| * this function is called just before we call linux |
| * it prepares the processor for linux |
| * |
| * we turn off caches etc ... |
| */ |
| disable_interrupts(); |
| |
| /* turn off I/D-cache */ |
| icache_disable(); |
| dcache_disable(); |
| |
| /* invalidate I-cache */ |
| cache_flush(); |
| |
| #ifndef CONFIG_L2_OFF |
| /* turn off L2 cache */ |
| l2_cache_disable(); |
| /* invalidate L2 cache also */ |
| v7_flush_dcache_all(get_device_type()); |
| #endif |
| i = 0; |
| /* mem barrier to sync up things */ |
| asm("mcr p15, 0, %0, c7, c10, 4": :"r"(i)); |
| |
| #ifndef CONFIG_L2_OFF |
| l2_cache_enable(); |
| #endif |
| #endif |
| return 0; |
| } |
| |
| static void cache_flush(void) |
| { |
| asm ("mcr p15, 0, %0, c7, c5, 0": :"r" (0)); |
| } |
| |
| int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) |
| { |
| disable_interrupts(); |
| reset_cpu (0); |
| return(0); |
| } |
| |