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/*
 * Copyright (c) 2011-2012 The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of The Linux Foundation 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 "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER 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 __GSBI_H_
#define __GSBI_H_

/* GSBI Registers */
#define GSBI_CTRL_REG(base)        ((base) + 0x0)

#define GSBI_CTRL_REG_PROTOCOL_CODE_S   4
#define GSBI_PROTOCOL_CODE_I2C          0x2
#define GSBI_PROTOCOL_CODE_SPI          0x3
#define GSBI_PROTOCOL_CODE_UART_FLOW    0x4
#define GSBI_PROTOCOL_CODE_I2C_UART     0x6

#define GSBI_HCLK_CTL_S                 4
#define GSBI_HCLK_CTL_CLK_ENA           0x1

typedef enum {
	GSBI_ID_1 = 1,
	GSBI_ID_2,
	GSBI_ID_3,
	GSBI_ID_4,
	GSBI_ID_5,
	GSBI_ID_6,
	GSBI_ID_7,
} gsbi_id_t;

typedef enum {
	GSBI_SUCCESS = 0,
	GSBI_ID_ERROR,
	GSBI_ERROR,
	GSBI_UNSUPPORTED
} gsbi_return_t;

typedef enum {
	GSBI_PROTO_I2C_UIM = 1,
	GSBI_PROTO_I2C_ONLY,
	GSBI_PROTO_SPI_ONLY,
	GSBI_PROTO_UART_FLOW_CTL,
	GSBI_PROTO_UIM,
	GSBI_PROTO_I2C_UART,
} gsbi_protocol_t;

gsbi_return_t gsbi_init(gsbi_id_t gsbi_id, gsbi_protocol_t protocol);
int gsbi_init_board(gsbi_id_t gsbi_id);

#endif