1 /*
2  * Copyright (C) 2011 Simon Guinot <sguinot@lacie.com>
3  *
4  * Based on Kirkwood support:
5  * (C) Copyright 2009
6  * Marvell Semiconductor <www.marvell.com>
7  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
8  *
9  * SPDX-License-Identifier:	GPL-2.0+
10  */
11 
12 #include <common.h>
13 #include <command.h>
14 #include <i2c.h>
15 #include <asm/arch/cpu.h>
16 #include <asm/arch/kirkwood.h>
17 #include <asm/arch/mpp.h>
18 #include <asm/arch/gpio.h>
19 
20 #include "net2big_v2.h"
21 #include "../common/common.h"
22 #include "../common/cpld-gpio-bus.h"
23 
24 DECLARE_GLOBAL_DATA_PTR;
25 
26 int board_early_init_f(void)
27 {
28 	/* GPIO configuration */
29 	kw_config_gpio(NET2BIG_V2_OE_VAL_LOW, NET2BIG_V2_OE_VAL_HIGH,
30 			NET2BIG_V2_OE_LOW, NET2BIG_V2_OE_HIGH);
31 
32 	/* Multi-Purpose Pins Functionality configuration */
33 	static const u32 kwmpp_config[] = {
34 		MPP0_SPI_SCn,
35 		MPP1_SPI_MOSI,
36 		MPP2_SPI_SCK,
37 		MPP3_SPI_MISO,
38 		MPP6_SYSRST_OUTn,
39 		MPP7_GPO,		/* Request power-off */
40 		MPP8_TW_SDA,
41 		MPP9_TW_SCK,
42 		MPP10_UART0_TXD,
43 		MPP11_UART0_RXD,
44 		MPP13_GPIO,		/* Rear power switch (on|auto) */
45 		MPP14_GPIO,		/* USB fuse alarm */
46 		MPP15_GPIO,		/* Rear power switch (auto|off) */
47 		MPP16_GPIO,		/* SATA HDD1 power */
48 		MPP17_GPIO,		/* SATA HDD2 power */
49 		MPP20_SATA1_ACTn,
50 		MPP21_SATA0_ACTn,
51 		MPP24_GPIO,		/* USB mode select */
52 		MPP26_GPIO,		/* USB device vbus */
53 		MPP28_GPIO,		/* USB enable host vbus */
54 		MPP29_GPIO,		/* CPLD GPIO bus ALE */
55 		MPP34_GPIO,		/* Rear Push button 0=on 1=off */
56 		MPP35_GPIO,		/* Inhibit switch power-off */
57 		MPP36_GPIO,		/* SATA HDD1 presence */
58 		MPP37_GPIO,		/* SATA HDD2 presence */
59 		MPP40_GPIO,		/* eSATA presence */
60 		MPP44_GPIO,		/* CPLD GPIO bus (data 0) */
61 		MPP45_GPIO,		/* CPLD GPIO bus (data 1) */
62 		MPP46_GPIO,		/* CPLD GPIO bus (data 2) */
63 		MPP47_GPIO,		/* CPLD GPIO bus (addr 0) */
64 		MPP48_GPIO,		/* CPLD GPIO bus (addr 1) */
65 		MPP49_GPIO,		/* CPLD GPIO bus (addr 2) */
66 		0
67 	};
68 
69 	kirkwood_mpp_conf(kwmpp_config, NULL);
70 
71 	return 0;
72 }
73 
74 int board_init(void)
75 {
76 	/* Machine number */
77 	gd->bd->bi_arch_number = MACH_TYPE_NET2BIG_V2;
78 
79 	/* Boot parameters address */
80 	gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
81 
82 	return 0;
83 }
84 
85 #if defined(CONFIG_MISC_INIT_R)
86 
87 #if defined(CONFIG_CMD_I2C) && defined(CONFIG_SYS_I2C_G762_ADDR)
88 /*
89  * Start I2C fan (GMT G762 controller)
90  */
91 static void init_fan(void)
92 {
93 	u8 data;
94 
95 	i2c_set_bus_num(0);
96 
97 	/* Enable open-loop and PWM modes */
98 	data = 0x20;
99 	if (i2c_write(CONFIG_SYS_I2C_G762_ADDR,
100 		      G762_REG_FAN_CMD1, 1, &data, 1) != 0)
101 		goto err;
102 	data = 0;
103 	if (i2c_write(CONFIG_SYS_I2C_G762_ADDR,
104 		      G762_REG_SET_CNT, 1, &data, 1) != 0)
105 		goto err;
106 	/*
107 	 * RPM to PWM (set_out register) fan speed conversion array:
108 	 * 0    0x00
109 	 * 1500	0x04
110 	 * 2800	0x08
111 	 * 3400	0x0C
112 	 * 3700	0x10
113 	 * 4400	0x20
114 	 * 4700	0x30
115 	 * 4800	0x50
116 	 * 5200	0x80
117 	 * 5400	0xC0
118 	 * 5500	0xFF
119 	 *
120 	 * Start fan at low speed (2800 RPM):
121 	 */
122 	data = 0x08;
123 	if (i2c_write(CONFIG_SYS_I2C_G762_ADDR,
124 		      G762_REG_SET_OUT, 1, &data, 1) != 0)
125 		goto err;
126 
127 	return;
128 err:
129 	printf("Error: failed to start I2C fan @%02x\n",
130 	       CONFIG_SYS_I2C_G762_ADDR);
131 }
132 #else
133 static void init_fan(void) {}
134 #endif /* CONFIG_CMD_I2C && CONFIG_SYS_I2C_G762_ADDR */
135 
136 #if defined(CONFIG_NET2BIG_V2) && defined(CONFIG_KIRKWOOD_GPIO)
137 /*
138  * CPLD GPIO bus:
139  *
140  * - address register : bit [0-2] -> GPIO [47-49]
141  * - data register    : bit [0-2] -> GPIO [44-46]
142  * - enable register  : GPIO 29
143  */
144 static unsigned cpld_gpio_bus_addr[] = { 47, 48, 49 };
145 static unsigned cpld_gpio_bus_data[] = { 44, 45, 46 };
146 
147 static struct cpld_gpio_bus cpld_gpio_bus = {
148 	.addr		= cpld_gpio_bus_addr,
149 	.num_addr	= ARRAY_SIZE(cpld_gpio_bus_addr),
150 	.data		= cpld_gpio_bus_data,
151 	.num_data	= ARRAY_SIZE(cpld_gpio_bus_data),
152 	.enable		= 29,
153 };
154 
155 /*
156  * LEDs configuration:
157  *
158  * The LEDs are controlled by a CPLD and can be configured through
159  * the CPLD GPIO bus.
160  *
161  * Address register selection:
162  *
163  * addr | register
164  * ----------------------------
165  *   0  | front LED
166  *   1  | front LED brightness
167  *   2  | SATA LED brightness
168  *   3  | SATA0 LED
169  *   4  | SATA1 LED
170  *   5  | SATA2 LED
171  *   6  | SATA3 LED
172  *   7  | SATA4 LED
173  *
174  * Data register configuration:
175  *
176  * data | LED brightness
177  * -------------------------------------------------
178  *   0  | min (off)
179  *   -  | -
180  *   7  | max
181  *
182  * data | front LED mode
183  * -------------------------------------------------
184  *   0  | fix off
185  *   1  | fix blue on
186  *   2  | fix red on
187  *   3  | blink blue on=1 sec and blue off=1 sec
188  *   4  | blink red on=1 sec and red off=1 sec
189  *   5  | blink blue on=2.5 sec and red on=0.5 sec
190  *   6  | blink blue on=1 sec and red on=1 sec
191  *   7  | blink blue on=0.5 sec and blue off=2.5 sec
192  *
193  * data | SATA LED mode
194  * -------------------------------------------------
195  *   0  | fix off
196  *   1  | SATA activity blink
197  *   2  | fix red on
198  *   3  | blink blue on=1 sec and blue off=1 sec
199  *   4  | blink red on=1 sec and red off=1 sec
200  *   5  | blink blue on=2.5 sec and red on=0.5 sec
201  *   6  | blink blue on=1 sec and red on=1 sec
202  *   7  | fix blue on
203  */
204 static void init_leds(void)
205 {
206 	/* Enable the front blue LED */
207 	cpld_gpio_bus_write(&cpld_gpio_bus, 0, 1);
208 	cpld_gpio_bus_write(&cpld_gpio_bus, 1, 3);
209 
210 	/* Configure SATA LEDs to blink in relation with the SATA activity */
211 	cpld_gpio_bus_write(&cpld_gpio_bus, 3, 1);
212 	cpld_gpio_bus_write(&cpld_gpio_bus, 4, 1);
213 	cpld_gpio_bus_write(&cpld_gpio_bus, 2, 3);
214 }
215 #else
216 static void init_leds(void) {}
217 #endif /* CONFIG_NET2BIG_V2 && CONFIG_KIRKWOOD_GPIO */
218 
219 int misc_init_r(void)
220 {
221 	init_fan();
222 #if defined(CONFIG_CMD_I2C) && defined(CONFIG_SYS_I2C_EEPROM_ADDR)
223 	if (!getenv("ethaddr")) {
224 		uchar mac[6];
225 		if (lacie_read_mac_address(mac) == 0)
226 			eth_setenv_enetaddr("ethaddr", mac);
227 	}
228 #endif
229 	init_leds();
230 
231 	return 0;
232 }
233 #endif /* CONFIG_MISC_INIT_R */
234 
235 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
236 /* Configure and initialize PHY */
237 void reset_phy(void)
238 {
239 	mv_phy_88e1116_init("egiga0", 8);
240 }
241 #endif
242 
243 #if defined(CONFIG_KIRKWOOD_GPIO)
244 /* Return GPIO push button status */
245 static int
246 do_read_push_button(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
247 {
248 	return !kw_gpio_get_value(NET2BIG_V2_GPIO_PUSH_BUTTON);
249 }
250 
251 U_BOOT_CMD(button, 1, 1, do_read_push_button,
252 	   "Return GPIO push button status 0=off 1=on", "");
253 #endif
254