FreeBSD/Linux Kernel Cross Reference
sys/arm/versatile/versatile_scm.h

     /*
      * Copyright (c) 2017 Oleksandr Tymoshenko <gonzo@freebsd.org>
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Ben Gray.
     * 4. The name of the company nor the name of the author may be used to
     *    endorse or promote products derived from this software without specific
     *    prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY BEN GRAY ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL BEN GRAY BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _VERSATILE_SCM_H_
    #define _VERSATILE_SCM_H_
    
    #define SCM_PCICTL              0x44
    #define SCM_CLCD                0x50
    #define  SCM_CLCD_CLCDID_SHIFT          0x08
    #define  SCM_CLCD_CLCDID_MASK           0x1f
    #define  SCM_CLCD_PWR3V5VSWITCH         (1 << 4)
    #define  SCM_CLCD_VDDPOSSWITCH          (1 << 3)
    #define  SCM_CLCD_NLCDIOON              (1 << 2)
    #define  SCM_CLCD_LCD_MODE_MASK         0x03
    
    int versatile_scm_reg_read_4(uint32_t reg, uint32_t *val);
    int versatile_scm_reg_write_4(uint32_t reg, uint32_t val);
    
    #endif /* _VERSATILE_SCM_H_ */

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