include/linux/amba/sp810.h

   1 /*
   2  * ARM PrimeXsys System Controller SP810 header file
   3  *
   4  * Copyright (C) 2009 ST Microelectronics
   5  * Viresh Kumar <vireshk@kernel.org>
   6  *
   7  * This file is licensed under the terms of the GNU General Public
   8  * License version 2. This program is licensed "as is" without any
   9  * warranty of any kind, whether express or implied.
  10  */
  11
  12 #ifndef __AMBA_SP810_H
  13 #define __AMBA_SP810_H
  14
  15 #include <linux/io.h>
  16
  17 /* sysctl registers offset */
  18 #define SCCTRL                  0x000
  19 #define SCSYSSTAT               0x004
  20 #define SCIMCTRL                0x008
  21 #define SCIMSTAT                0x00C
  22 #define SCXTALCTRL              0x010
  23 #define SCPLLCTRL               0x014
  24 #define SCPLLFCTRL              0x018
  25 #define SCPERCTRL0              0x01C
  26 #define SCPERCTRL1              0x020
  27 #define SCPEREN                 0x024
  28 #define SCPERDIS                0x028
  29 #define SCPERCLKEN              0x02C
  30 #define SCPERSTAT               0x030
  31 #define SCSYSID0                0xEE0
  32 #define SCSYSID1                0xEE4
  33 #define SCSYSID2                0xEE8
  34 #define SCSYSID3                0xEEC
  35 #define SCITCR                  0xF00
  36 #define SCITIR0                 0xF04
  37 #define SCITIR1                 0xF08
  38 #define SCITOR                  0xF0C
  39 #define SCCNTCTRL               0xF10
  40 #define SCCNTDATA               0xF14
  41 #define SCCNTSTEP               0xF18
  42 #define SCPERIPHID0             0xFE0
  43 #define SCPERIPHID1             0xFE4
  44 #define SCPERIPHID2             0xFE8
  45 #define SCPERIPHID3             0xFEC
  46 #define SCPCELLID0              0xFF0
  47 #define SCPCELLID1              0xFF4
  48 #define SCPCELLID2              0xFF8
  49 #define SCPCELLID3              0xFFC
  50
  51 #define SCCTRL_TIMERENnSEL_SHIFT(n)     (15 + ((n) * 2))
  52
  53 static inline void sysctl_soft_reset(void __iomem *base)
  54 {
  55         /* switch to slow mode */
  56         writel(0x2, base + SCCTRL);
  57
  58         /* writing any value to SCSYSSTAT reg will reset system */
  59         writel(0, base + SCSYSSTAT);
  60 }
  61
  62 #endif /* __AMBA_SP810_H */