contiki/cpu/x86/drivers/quarkX1000/imr.h

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/*
* Copyright (C) 2015-2016, Intel Corporation. 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. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``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 THE
* COPYRIGHT HOLDER OR CONTRIBUTORS 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.
*/
#ifndef CPU_X86_DRIVERS_QUARKX1000_IMR_H_
#define CPU_X86_DRIVERS_QUARKX1000_IMR_H_
#include <stdint.h>
typedef union quarkX1000_imr_lo {
struct {
uint32_t : 2;
uint32_t addr : 22;
uint32_t : 7;
uint32_t lock : 1;
};
uint32_t raw;
} quarkX1000_imr_lo_t;
typedef union quarkX1000_imr_hi {
struct {
uint32_t : 2;
uint32_t addr : 22;
uint32_t : 8;
};
uint32_t raw;
} quarkX1000_imr_hi_t;
/* Amount to shift imr_lo/hi.addr left to obtain the bound address */
#define QUARKX1000_IMR_SHAMT 10
typedef union quarkX1000_imr_rdmsk {
struct {
uint32_t cpu0 : 1;
uint32_t cpu_0 : 1;
uint32_t : 6;
uint32_t vc0_sai_id0 : 1;
uint32_t vc0_sai_id1 : 1;
uint32_t vc0_sai_id2 : 1;
uint32_t vc0_sai_id3 : 1;
uint32_t vc1_sai_id0 : 1;
uint32_t vc1_sai_id1 : 1;
uint32_t vc1_sai_id2 : 1;
uint32_t vc1_sai_id3 : 1;
uint32_t : 13;
uint32_t punit : 1;
uint32_t : 1;
uint32_t esram_flush_init : 1;
};
uint32_t raw;
} quarkX1000_imr_rdmsk_t;
typedef union quarkX1000_imr_wrmsk {
struct {
uint32_t cpu0 : 1;
uint32_t cpu_0 : 1;
uint32_t : 6;
uint32_t vc0_sai_id0 : 1;
uint32_t vc0_sai_id1 : 1;
uint32_t vc0_sai_id2 : 1;
uint32_t vc0_sai_id3 : 1;
uint32_t vc1_sai_id0 : 1;
uint32_t vc1_sai_id1 : 1;
uint32_t vc1_sai_id2 : 1;
uint32_t vc1_sai_id3 : 1;
uint32_t : 13;
uint32_t punit : 1;
uint32_t cpu_snoop : 1;
uint32_t esram_flush_init : 1;
};
uint32_t raw;
} quarkX1000_imr_wrmsk_t;
/* Refer to Intel Quark SoC X1000 Datasheet, Section 12.7.4 for more details on
* the IMR registers.
*/
typedef struct quarkX1000_imr {
quarkX1000_imr_lo_t lo;
quarkX1000_imr_hi_t hi;
quarkX1000_imr_rdmsk_t rdmsk;
quarkX1000_imr_wrmsk_t wrmsk;
} quarkX1000_imr_t;
/* The Intel Quark SoC X1000 defines eight general IMRs. */
#define QUARKX1000_IMR_CNT 8
/* Routines for accessing the Isolated Memory Region (IMR) feature.
*
* The Intel Quark X1000 SoC includes support for Isolated Memory Regions
* (IMRs), which are specified using range registers and associated
* control registers that are accessible via the message bus.
*
* Refer to Intel Quark SoC X1000 Datasheet, Section 12.2 for more information.
*/
quarkX1000_imr_t quarkX1000_imr_read(uint32_t imr_idx);
void quarkX1000_imr_write(uint32_t imr_idx, quarkX1000_imr_t imr);
#endif /* CPU_X86_DRIVERS_QUARKX1000_IMR_H_ */