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      1 /*	$NetBSD: smc.h,v 1.2 2014/09/05 08:01:05 skrll Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2014 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Reinoud Zandijk.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 
     33 #ifndef _ARM_SAMSUNG_SMC_H_
     34 #define _ARM_SAMSUNG_SMC_H_
     35 
     36 /* provided by Samsung for the Exynos SMC calls */
     37 
     38 #define SMC_CMD_INIT		(-1)
     39 #define SMC_CMD_INFO		(-2)
     40 /* For Power Management */
     41 #define SMC_CMD_SLEEP		(-3)
     42 #define SMC_CMD_CPU1BOOT	(-4)
     43 #define SMC_CMD_CPU0AFTR	(-5)
     44 /* For CP15 Access */
     45 #define SMC_CMD_C15RESUME	(-11)
     46 /* For L2 Cache Access */
     47 #define SMC_CMD_L2X0CTRL	(-21)
     48 #define SMC_CMD_L2X0SETUP1	(-22)
     49 #define SMC_CMD_L2X0SETUP2	(-23)
     50 #define SMC_CMD_L2X0INVALL	(-24)
     51 #define SMC_CMD_L2X0DEBUG	(-25)
     52 
     53 
     54 /* XXX status of the following SMC is not known */
     55 /* For Accessing CP15/SFR (General) */
     56 #define SMC_CMD_REG             (-101)
     57 
     58 /* MACRO for SMC_CMD_REG */
     59 #define SMC_REG_CLASS_CP15      (0x0 << 30)
     60 #define SMC_REG_CLASS_SFR_W     (0x1 << 30)
     61 #define SMC_REG_CLASS_SFR_R     (0x3 << 30)
     62 #define SMC_REG_CLASS_MASK      (0x3 << 30)
     63 #define SMC_REG_ID_CP15(CRn, Op1, CRm, Op2) \
     64            (SMC_REG_CLASS_CP15 | \
     65             ((CRn) << 10) | ((Op1) << 7) | ((CRm) << 3) | (Op2))
     66 #define SMC_REG_ID_SFR_W(ADDR)  (SMC_REG_CLASS_SFR_W | ((ADDR) >> 2))
     67 #define SMC_REG_ID_SFR_R(ADDR)  (SMC_REG_CLASS_SFR_R | ((ADDR) >> 2))
     68 
     69 
     70 extern void exynos_smc(uint32_t cmd, uint32_t arg1, uint32_t arg2, uint32_t arg3);
     71 
     72 #endif	/* _ARM_SAMSUNG_SMC_H_ */
     73 
     74