[people/ms/u-boot.git] / board / freescale / common / vsc3316_3308.c

/*
 * Copyright 2012 Freescale Semiconductor, Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include "vsc3316_3308.h"

#define REVISION_ID_REG		0x7E
#define INTERFACE_MODE_REG		0x79
#define CURRENT_PAGE_REGISTER		0x7F
#define CONNECTION_CONFIG_PAGE		0x00
#define INPUT_STATE_REG		0x13
#define GLOBAL_INPUT_ISE1		0x51
#define GLOBAL_INPUT_ISE2		0x52
#define GLOBAL_INPUT_LOS		0x55
#define GLOBAL_CORE_CNTRL		0x5D
#define OUTPUT_MODE_PAGE		0x23
#define CORE_CONTROL_PAGE		0x25
#define CORE_CONFIG_REG		0x75

int vsc_if_enable(unsigned int vsc_addr)
{
	u8 data;

	debug("VSC:Configuring VSC at I2C address 0x%2x"
			" for 2-wire interface\n", vsc_addr);

	/* enable 2-wire Serial InterFace (I2C) */
	data = 0x02;
	return i2c_write(vsc_addr, INTERFACE_MODE_REG, 1, &data, 1);
}

int vsc3316_config(unsigned int vsc_addr, const int8_t con_arr[][2],
		unsigned int num_con)
{
	unsigned int i;
	u8 rev_id = 0;
	int ret;

	debug("VSC:Initializing VSC3316 at I2C address 0x%2x"
		" for Tx\n", vsc_addr);

	ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1);
	if (ret < 0) {
		printf("VSC:0x%x could not read REV_ID from device.\n",
			vsc_addr);
		return ret;
	}

	if (rev_id != 0xab) {
		printf("VSC: device at address 0x%x is not VSC3316/3308.\n",
			vsc_addr);
		return -ENODEV;
	}

	ret = vsc_if_enable(vsc_addr);
	if (ret) {
		printf("VSC:0x%x could not configured for 2-wire I/F.\n",
			vsc_addr);
		return ret;
	}

	/* config connections - page 0x00 */
	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE);

	/* Making crosspoint connections, by connecting required
	 * input to output */
	for (i = 0; i < num_con ; i++)
		i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]);

	/* input state - page 0x13 */
	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG);
	/* Configuring the required input of the switch */
	for (i = 0; i < num_con ; i++)
		i2c_reg_write(vsc_addr, con_arr[i][0], 0x80);

	/* Setting Global Input LOS threshold value */
	i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0x60);

	/* config output mode - page 0x23 */
	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE);
	/* Turn ON the Output driver correspond to required output*/
	for (i = 0; i < num_con ; i++)
		i2c_reg_write(vsc_addr,  con_arr[i][1], 0);

	/* configure global core control register, Turn on Global core power */
	i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0);

	vsc_wp_config(vsc_addr);

	return 0;
}

int vsc3308_config(unsigned int vsc_addr, const int8_t con_arr[][2],
		unsigned int num_con)
{
	unsigned int i;
	u8 rev_id = 0;
	int ret;

	debug("VSC:Initializing VSC3308 at I2C address 0x%x"
		" for Tx\n", vsc_addr);

	ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1);
	if (ret < 0) {
		printf("VSC:0x%x could not read REV_ID from device.\n",
			vsc_addr);
		return ret;
	}

	if (rev_id != 0xab) {
		printf("VSC: device at address 0x%x is not VSC3316/3308.\n",
			vsc_addr);
		return -ENODEV;
	}

	ret = vsc_if_enable(vsc_addr);
	if (ret) {
		printf("VSC:0x%x could not configured for 2-wire I/F.\n",
			vsc_addr);
		return ret;
	}

	/* config connections - page 0x00 */
	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE);

	/* Making crosspoint connections, by connecting required
	 * input to output */
	for (i = 0; i < num_con ; i++)
		i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]);

	/*Configure Global Input ISE and gain */
	i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE1, 0x12);
	i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE2, 0x12);

	/* input state - page 0x13 */
	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG);
	/* Turning ON the required input of the switch */
	for (i = 0; i < num_con ; i++)
		i2c_reg_write(vsc_addr, con_arr[i][0], 0);

	/* Setting Global Input LOS threshold value */
	i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0x60);

	/* config output mode - page 0x23 */
	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE);
	/* Turn ON the Output driver correspond to required output*/
	for (i = 0; i < num_con ; i++)
		i2c_reg_write(vsc_addr,  con_arr[i][1], 0);

	/* configure global core control register, Turn on Global core power */
	i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0);

	vsc_wp_config(vsc_addr);

	return 0;
}

void vsc_wp_config(unsigned int vsc_addr)
{
	debug("VSC:Configuring VSC at address:0x%x for WP\n", vsc_addr);

	/* For new crosspoint configuration to occur, WP bit of
	 * CORE_CONFIG_REG should be set 1 and then reset to 0 */
	i2c_reg_write(vsc_addr, CORE_CONFIG_REG, 0x01);
	i2c_reg_write(vsc_addr, CORE_CONFIG_REG, 0x0);
}
Commit	Line	Data
aa42cb71 SL	1	/*
	2	* Copyright 2012 Freescale Semiconductor, Inc.
	3	*
1a459660	4	* SPDX-License-Identifier: GPL-2.0+
aa42cb71 SL	5	*/
	6
	7	#include "vsc3316_3308.h"
	8
	9	#define REVISION_ID_REG 0x7E
	10	#define INTERFACE_MODE_REG 0x79
	11	#define CURRENT_PAGE_REGISTER 0x7F
	12	#define CONNECTION_CONFIG_PAGE 0x00
	13	#define INPUT_STATE_REG 0x13
	14	#define GLOBAL_INPUT_ISE1 0x51
	15	#define GLOBAL_INPUT_ISE2 0x52
	16	#define GLOBAL_INPUT_LOS 0x55
	17	#define GLOBAL_CORE_CNTRL 0x5D
	18	#define OUTPUT_MODE_PAGE 0x23
	19	#define CORE_CONTROL_PAGE 0x25
	20	#define CORE_CONFIG_REG 0x75
	21
	22	int vsc_if_enable(unsigned int vsc_addr)
	23	{
	24	u8 data;
	25
	26	debug("VSC:Configuring VSC at I2C address 0x%2x"
	27	" for 2-wire interface\n", vsc_addr);
	28
	29	/* enable 2-wire Serial InterFace (I2C) */
	30	data = 0x02;
	31	return i2c_write(vsc_addr, INTERFACE_MODE_REG, 1, &data, 1);
	32	}
	33
	34	int vsc3316_config(unsigned int vsc_addr, const int8_t con_arr[][2],
	35	unsigned int num_con)
	36	{
	37	unsigned int i;
	38	u8 rev_id = 0;
	39	int ret;
	40
	41	debug("VSC:Initializing VSC3316 at I2C address 0x%2x"
	42	" for Tx\n", vsc_addr);
	43
	44	ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1);
	45	if (ret < 0) {
	46	printf("VSC:0x%x could not read REV_ID from device.\n",
	47	vsc_addr);
	48	return ret;
	49	}
	50
	51	if (rev_id != 0xab) {
	52	printf("VSC: device at address 0x%x is not VSC3316/3308.\n",
	53	vsc_addr);
	54	return -ENODEV;
	55	}
	56
	57	ret = vsc_if_enable(vsc_addr);
	58	if (ret) {
	59	printf("VSC:0x%x could not configured for 2-wire I/F.\n",
	60	vsc_addr);
	61	return ret;
	62	}
	63
	64	/* config connections - page 0x00 */
	65	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE);
	66
	67	/* Making crosspoint connections, by connecting required
	68	* input to output */
69	for (i = 0; i < num_con ; i++)
70	i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]);
71
72	/* input state - page 0x13 */
73	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG);
74	/* Configuring the required input of the switch */
75	for (i = 0; i < num_con ; i++)
76	i2c_reg_write(vsc_addr, con_arr[i][0], 0x80);
77
78	/* Setting Global Input LOS threshold value */
79	i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0x60);
80
81	/* config output mode - page 0x23 */
82	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE);
83	/* Turn ON the Output driver correspond to required output*/
84	for (i = 0; i < num_con ; i++)
85	i2c_reg_write(vsc_addr, con_arr[i][1], 0);
86
87	/* configure global core control register, Turn on Global core power */
88	i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0);
89
90	vsc_wp_config(vsc_addr);
91
92	return 0;
93	}
94
95	int vsc3308_config(unsigned int vsc_addr, const int8_t con_arr[][2],
96	unsigned int num_con)
97	{
98	unsigned int i;
99	u8 rev_id = 0;
100	int ret;
101
102	debug("VSC:Initializing VSC3308 at I2C address 0x%x"
103	" for Tx\n", vsc_addr);
104
105	ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1);
106	if (ret < 0) {
107	printf("VSC:0x%x could not read REV_ID from device.\n",
108	vsc_addr);
109	return ret;
110	}
111
112	if (rev_id != 0xab) {
113	printf("VSC: device at address 0x%x is not VSC3316/3308.\n",
114	vsc_addr);
115	return -ENODEV;
116	}
117
118	ret = vsc_if_enable(vsc_addr);
119	if (ret) {
120	printf("VSC:0x%x could not configured for 2-wire I/F.\n",
121	vsc_addr);
122	return ret;
123	}
124
125	/* config connections - page 0x00 */
126	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE);
127
128	/* Making crosspoint connections, by connecting required
129	* input to output */
130	for (i = 0; i < num_con ; i++)
131	i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]);
132
133	/Configure Global Input ISE and gain /
134	i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE1, 0x12);
135	i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE2, 0x12);
136
137	/* input state - page 0x13 */
138	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG);
139	/* Turning ON the required input of the switch */
140	for (i = 0; i < num_con ; i++)
141	i2c_reg_write(vsc_addr, con_arr[i][0], 0);
142
143	/* Setting Global Input LOS threshold value */
144	i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0x60);
145
146	/* config output mode - page 0x23 */
147	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE);
148	/* Turn ON the Output driver correspond to required output*/
149	for (i = 0; i < num_con ; i++)
150	i2c_reg_write(vsc_addr, con_arr[i][1], 0);
151
152	/* configure global core control register, Turn on Global core power */
153	i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0);
154
155	vsc_wp_config(vsc_addr);
156
157	return 0;
158	}
159
160	void vsc_wp_config(unsigned int vsc_addr)
161	{
162	debug("VSC:Configuring VSC at address:0x%x for WP\n", vsc_addr);
163
164	/* For new crosspoint configuration to occur, WP bit of
165	* CORE_CONFIG_REG should be set 1 and then reset to 0 */
166	i2c_reg_write(vsc_addr, CORE_CONFIG_REG, 0x01);
167	i2c_reg_write(vsc_addr, CORE_CONFIG_REG, 0x0);
168	}