1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 2012 Michael Walle
4 * Michael Walle <michael@walle.cc>
5 *
6 * Based on sheevaplug/sheevaplug.c by
7 * Marvell Semiconductor <www.marvell.com>
8 */
9
10 #include <common.h>
11 #include <env.h>
12 #include <env_internal.h>
13 #include <net.h>
14 #include <malloc.h>
15 #include <netdev.h>
16 #include <miiphy.h>
17 #include <spi.h>
18 #include <spi_flash.h>
19 #include <asm/arch/soc.h>
20 #include <asm/arch/cpu.h>
21 #include <asm/arch/mpp.h>
22 #include <asm/arch/gpio.h>
23
24 #include "lsxl.h"
25
26 /*
27 * Rescue mode
28 *
29 * Selected by holding the push button for 3 seconds, while powering on
30 * the device.
31 *
32 * These linkstations don't have a (populated) serial port. There is no
33 * way to access an (unmodified) board other than using the netconsole. If
34 * you want to recover from a bad environment setting or an empty environment,
35 * you can do this only with a working network connection. Therefore, a random
36 * ethernet address is generated if none is set and a DHCP request is sent.
37 * After a successful DHCP response is received, the network settings are
38 * configured and the ncip is unset. Therefore, all netconsole packets are
39 * broadcasted.
40 * Additionally, the bootsource is set to 'rescue'.
41 */
42
43 #ifndef CONFIG_ENV_OVERWRITE
44 # error "You need to set CONFIG_ENV_OVERWRITE"
45 #endif
46
47 DECLARE_GLOBAL_DATA_PTR;
48
board_early_init_f(void)49 int board_early_init_f(void)
50 {
51 /*
52 * default gpio configuration
53 * There are maximum 64 gpios controlled through 2 sets of registers
54 * the below configuration configures mainly initial LED status
55 */
56 mvebu_config_gpio(LSXL_OE_VAL_LOW,
57 LSXL_OE_VAL_HIGH,
58 LSXL_OE_LOW, LSXL_OE_HIGH);
59
60 /*
61 * Multi-Purpose Pins Functionality configuration
62 * These strappings are taken from the original vendor uboot port.
63 */
64 static const u32 kwmpp_config[] = {
65 MPP0_SPI_SCn,
66 MPP1_SPI_MOSI,
67 MPP2_SPI_SCK,
68 MPP3_SPI_MISO,
69 MPP4_UART0_RXD,
70 MPP5_UART0_TXD,
71 MPP6_SYSRST_OUTn,
72 MPP7_GPO,
73 MPP8_GPIO,
74 MPP9_GPIO,
75 MPP10_GPO, /* HDD power */
76 MPP11_GPIO, /* USB Vbus enable */
77 MPP12_SD_CLK,
78 MPP13_SD_CMD,
79 MPP14_SD_D0,
80 MPP15_SD_D1,
81 MPP16_SD_D2,
82 MPP17_SD_D3,
83 MPP18_GPO, /* fan speed high */
84 MPP19_GPO, /* fan speed low */
85 MPP20_GE1_0,
86 MPP21_GE1_1,
87 MPP22_GE1_2,
88 MPP23_GE1_3,
89 MPP24_GE1_4,
90 MPP25_GE1_5,
91 MPP26_GE1_6,
92 MPP27_GE1_7,
93 MPP28_GPIO,
94 MPP29_GPIO,
95 MPP30_GE1_10,
96 MPP31_GE1_11,
97 MPP32_GE1_12,
98 MPP33_GE1_13,
99 MPP34_GPIO,
100 MPP35_GPIO,
101 MPP36_GPIO, /* function LED */
102 MPP37_GPIO, /* alarm LED */
103 MPP38_GPIO, /* info LED */
104 MPP39_GPIO, /* power LED */
105 MPP40_GPIO, /* fan alarm */
106 MPP41_GPIO, /* funtion button */
107 MPP42_GPIO, /* power switch */
108 MPP43_GPIO, /* power auto switch */
109 MPP44_GPIO,
110 MPP45_GPIO,
111 MPP46_GPIO,
112 MPP47_GPIO,
113 MPP48_GPIO, /* function red LED */
114 MPP49_GPIO,
115 0
116 };
117
118 kirkwood_mpp_conf(kwmpp_config, NULL);
119
120 return 0;
121 }
122
123 #define LED_OFF 0
124 #define LED_ALARM_ON 1
125 #define LED_ALARM_BLINKING 2
126 #define LED_POWER_ON 3
127 #define LED_POWER_BLINKING 4
128 #define LED_INFO_ON 5
129 #define LED_INFO_BLINKING 6
130
__set_led(int blink_alarm,int blink_info,int blink_power,int value_alarm,int value_info,int value_power)131 static void __set_led(int blink_alarm, int blink_info, int blink_power,
132 int value_alarm, int value_info, int value_power)
133 {
134 kw_gpio_set_blink(GPIO_ALARM_LED, blink_alarm);
135 kw_gpio_set_blink(GPIO_INFO_LED, blink_info);
136 kw_gpio_set_blink(GPIO_POWER_LED, blink_power);
137 kw_gpio_set_value(GPIO_ALARM_LED, value_alarm);
138 kw_gpio_set_value(GPIO_INFO_LED, value_info);
139 kw_gpio_set_value(GPIO_POWER_LED, value_power);
140 }
141
set_led(int state)142 static void set_led(int state)
143 {
144 switch (state) {
145 case LED_OFF:
146 __set_led(0, 0, 0, 1, 1, 1);
147 break;
148 case LED_ALARM_ON:
149 __set_led(0, 0, 0, 0, 1, 1);
150 break;
151 case LED_ALARM_BLINKING:
152 __set_led(1, 0, 0, 1, 1, 1);
153 break;
154 case LED_INFO_ON:
155 __set_led(0, 0, 0, 1, 0, 1);
156 break;
157 case LED_INFO_BLINKING:
158 __set_led(0, 1, 0, 1, 1, 1);
159 break;
160 case LED_POWER_ON:
161 __set_led(0, 0, 0, 1, 1, 0);
162 break;
163 case LED_POWER_BLINKING:
164 __set_led(0, 0, 1, 1, 1, 1);
165 break;
166 }
167 }
168
board_init(void)169 int board_init(void)
170 {
171 /* address of boot parameters */
172 gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
173
174 set_led(LED_POWER_BLINKING);
175
176 return 0;
177 }
178
179 #ifdef CONFIG_MISC_INIT_R
check_power_switch(void)180 static void check_power_switch(void)
181 {
182 if (kw_gpio_get_value(GPIO_POWER_SWITCH)) {
183 /* turn off fan, HDD and USB power */
184 kw_gpio_set_value(GPIO_HDD_POWER, 0);
185 kw_gpio_set_value(GPIO_USB_VBUS, 0);
186 kw_gpio_set_value(GPIO_FAN_HIGH, 1);
187 kw_gpio_set_value(GPIO_FAN_LOW, 1);
188 set_led(LED_OFF);
189
190 /* loop until released */
191 while (kw_gpio_get_value(GPIO_POWER_SWITCH))
192 ;
193
194 /* turn power on again */
195 kw_gpio_set_value(GPIO_HDD_POWER, 1);
196 kw_gpio_set_value(GPIO_USB_VBUS, 1);
197 kw_gpio_set_value(GPIO_FAN_HIGH, 0);
198 kw_gpio_set_value(GPIO_FAN_LOW, 0);
199 set_led(LED_POWER_BLINKING);
200 }
201 }
202
check_enetaddr(void)203 void check_enetaddr(void)
204 {
205 uchar enetaddr[6];
206
207 if (!eth_env_get_enetaddr("ethaddr", enetaddr)) {
208 /* signal unset/invalid ethaddr to user */
209 set_led(LED_INFO_BLINKING);
210 }
211 }
212
erase_environment(void)213 static void erase_environment(void)
214 {
215 struct spi_flash *flash;
216
217 printf("Erasing environment..\n");
218 flash = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
219 if (!flash) {
220 printf("Erasing flash failed\n");
221 return;
222 }
223
224 spi_flash_erase(flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE);
225 spi_flash_free(flash);
226 do_reset(NULL, 0, 0, NULL);
227 }
228
rescue_mode(void)229 static void rescue_mode(void)
230 {
231 printf("Entering rescue mode..\n");
232 env_set("bootsource", "rescue");
233 }
234
check_push_button(void)235 static void check_push_button(void)
236 {
237 int i = 0;
238
239 while (!kw_gpio_get_value(GPIO_FUNC_BUTTON)) {
240 udelay(100000);
241 i++;
242
243 if (i == 10)
244 set_led(LED_INFO_ON);
245
246 if (i >= 100) {
247 set_led(LED_INFO_BLINKING);
248 break;
249 }
250 }
251
252 if (i >= 100)
253 erase_environment();
254 else if (i >= 10)
255 rescue_mode();
256 }
257
misc_init_r(void)258 int misc_init_r(void)
259 {
260 check_power_switch();
261 check_enetaddr();
262 check_push_button();
263
264 return 0;
265 }
266 #endif
267
268 #ifdef CONFIG_SHOW_BOOT_PROGRESS
show_boot_progress(int progress)269 void show_boot_progress(int progress)
270 {
271 if (progress > 0)
272 return;
273
274 /* this is not an error, eg. bootp with autoload=no will trigger this */
275 if (progress == -BOOTSTAGE_ID_NET_LOADED)
276 return;
277
278 set_led(LED_ALARM_BLINKING);
279 }
280 #endif
281