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smc.h revision 1.1 
      1 /*	$NetBSD: smc.h,v 1.1 2014/04/13 02:26:26 matt Exp $	*/
      2 /*-
      3  * Copyright (c) 2014 The NetBSD Foundation, Inc.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to The NetBSD Foundation
      7  * by Reinoud Zandijk.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 
     32 #ifndef _ARM_SAMSUNG_SMC_H_
     33 #define _ARM_SAMSUNG_SMC_H_
     34 
     35 /* provided by Samsung for the Exynos SMC calls */
     36 
     37 #define SMC_CMD_INIT		(-1)
     38 #define SMC_CMD_INFO		(-2)
     39 /* For Power Management */
     40 #define SMC_CMD_SLEEP		(-3)
     41 #define SMC_CMD_CPU1BOOT	(-4)
     42 #define SMC_CMD_CPU0AFTR	(-5)
     43 /* For CP15 Access */
     44 #define SMC_CMD_C15RESUME	(-11)
     45 /* For L2 Cache Access */
     46 #define SMC_CMD_L2X0CTRL	(-21)
     47 #define SMC_CMD_L2X0SETUP1	(-22)
     48 #define SMC_CMD_L2X0SETUP2	(-23)
     49 #define SMC_CMD_L2X0INVALL	(-24)
     50 #define SMC_CMD_L2X0DEBUG	(-25)
     51 
     52 
     53 /* XXX status of the following SMC is not known */
     54 /* For Accessing CP15/SFR (General) */
     55 #define SMC_CMD_REG             (-101)
     56 
     57 /* MACRO for SMC_CMD_REG */
     58 #define SMC_REG_CLASS_CP15      (0x0 << 30)
     59 #define SMC_REG_CLASS_SFR_W     (0x1 << 30)
     60 #define SMC_REG_CLASS_SFR_R     (0x3 << 30)
     61 #define SMC_REG_CLASS_MASK      (0x3 << 30)
     62 #define SMC_REG_ID_CP15(CRn, Op1, CRm, Op2) \
     63            (SMC_REG_CLASS_CP15 | \
     64             ((CRn) << 10) | ((Op1) << 7) | ((CRm) << 3) | (Op2))
     65 #define SMC_REG_ID_SFR_W(ADDR)  (SMC_REG_CLASS_SFR_W | ((ADDR) >> 2))
     66 #define SMC_REG_ID_SFR_R(ADDR)  (SMC_REG_CLASS_SFR_R | ((ADDR) >> 2))
     67 
     68 
     69 extern void exynos_smc(uint32_t cmd, uint32_t arg1, uint32_t arg2, uint32_t arg3);
     70 
     71 #endif	/* _ARM_SAMSUNG_SMC_H_ */
     72 
     73