arch/arm/plat-spear/include/plat/system.h

   1 /*
   2  * arch/arm/plat-spear/include/plat/system.h
   3  *
   4  * SPEAr platform specific architecture functions
   5  *
   6  * Copyright (C) 2009 ST Microelectronics
   7  * Viresh Kumar<viresh.kumar@st.com>
   8  *
   9  * This file is licensed under the terms of the GNU General Public
  10  * License version 2. This program is licensed "as is" without any
  11  * warranty of any kind, whether express or implied.
  12  */
  13
  14 #ifndef __PLAT_SYSTEM_H
  15 #define __PLAT_SYSTEM_H
  16
  17 #include <linux/io.h>
  18 #include <asm/hardware/sp810.h>
  19 #include <mach/hardware.h>
  20
  21 static inline void arch_idle(void)
  22 {
  23         /*
  24          * This should do all the clock switching
  25          * and wait for interrupt tricks
  26          */
  27         cpu_do_idle();
  28 }
  29
  30 static inline void arch_reset(char mode, const char *cmd)
  31 {
  32         if (mode == 's') {
  33                 /* software reset, Jump into ROM at address 0 */
  34                 cpu_reset(0);
  35         } else {
  36                 /* hardware reset, Use on-chip reset capability */
  37                 sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE);
  38         }
  39 }
  40
  41 #endif /* __PLAT_SYSTEM_H */