sp810.h

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/*
 * arch/arm/include/asm/hardware/sp810.h
 *
 * ARM PrimeXsys System Controller SP810 header file
 *
 * Copyright (C) 2009 ST Microelectronics
 * Viresh Kumar <[email protected]>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#ifndef __ASM_ARM_SP810_H
#define __ASM_ARM_SP810_H

#include <linux/io.h>

/* sysctl registers offset */
#define SCCTRL          0x000
#define SCSYSSTAT       0x004
#define SCIMCTRL        0x008
#define SCIMSTAT        0x00C
#define SCXTALCTRL      0x010
#define SCPLLCTRL       0x014
#define SCPLLFCTRL      0x018
#define SCPERCTRL0      0x01C
#define SCPERCTRL1      0x020
#define SCPEREN         0x024
#define SCPERDIS        0x028
#define SCPERCLKEN      0x02C
#define SCPERSTAT       0x030
#define SCSYSID0        0xEE0
#define SCSYSID1        0xEE4
#define SCSYSID2        0xEE8
#define SCSYSID3        0xEEC
#define SCITCR          0xF00
#define SCITIR0         0xF04
#define SCITIR1         0xF08
#define SCITOR          0xF0C
#define SCCNTCTRL       0xF10
#define SCCNTDATA       0xF14
#define SCCNTSTEP       0xF18
#define SCPERIPHID0     0xFE0
#define SCPERIPHID1     0xFE4
#define SCPERIPHID2     0xFE8
#define SCPERIPHID3     0xFEC
#define SCPCELLID0      0xFF0
#define SCPCELLID1      0xFF4
#define SCPCELLID2      0xFF8
#define SCPCELLID3      0xFFC

#define SCCTRL_TIMEREN0SEL_REFCLK   (0 << 15)
#define SCCTRL_TIMEREN0SEL_TIMCLK   (1 << 15)

#define SCCTRL_TIMEREN1SEL_REFCLK   (0 << 17)
#define SCCTRL_TIMEREN1SEL_TIMCLK   (1 << 17)

static inline void sysctl_soft_reset(void __iomem *base)
{
    /* switch to slow mode */
    writel(0x2, base + SCCTRL);

    /* writing any value to SCSYSSTAT reg will reset system */
    writel(0, base + SCSYSSTAT);
}

#endif  /* __ASM_ARM_SP810_H */