src/soc/qualcomm/ipq806x/include/soc/gsbi.h

/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
* Copyright (c) 2011-2012 The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/


#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