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Michael Wallef214a202012-06-05 11:33:17 +00001/*
2 * Copyright (c) 2012 Michael Walle
3 * Michael Walle <michael@walle.cc>
4 *
5 * Based on sheevaplug/sheevaplug.c by
6 * Marvell Semiconductor <www.marvell.com>
7 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02008 * SPDX-License-Identifier: GPL-2.0+
Michael Wallef214a202012-06-05 11:33:17 +00009 */
10
11#include <common.h>
12#include <net.h>
13#include <malloc.h>
14#include <netdev.h>
15#include <miiphy.h>
Simon Glassff0960f2014-10-13 23:42:04 -060016#include <spi.h>
17#include <spi_flash.h>
Stefan Roese3dc23f72014-10-22 12:13:06 +020018#include <asm/arch/soc.h>
Michael Wallef214a202012-06-05 11:33:17 +000019#include <asm/arch/cpu.h>
20#include <asm/arch/mpp.h>
21#include <asm/arch/gpio.h>
Michael Wallef214a202012-06-05 11:33:17 +000022
23#include "lsxl.h"
24
25/*
26 * Rescue mode
27 *
28 * Selected by holding the push button for 3 seconds, while powering on
29 * the device.
30 *
31 * These linkstations don't have a (populated) serial port. There is no
32 * way to access an (unmodified) board other than using the netconsole. If
33 * you want to recover from a bad environment setting or an empty environment,
34 * you can do this only with a working network connection. Therefore, a random
35 * ethernet address is generated if none is set and a DHCP request is sent.
36 * After a successful DHCP response is received, the network settings are
Michael Walle23c99462012-10-04 06:54:25 +000037 * configured and the ncip is unset. Therefore, all netconsole packets are
38 * broadcasted.
Michael Wallef214a202012-06-05 11:33:17 +000039 * Additionally, the bootsource is set to 'rescue'.
40 */
41
42#ifndef CONFIG_ENV_OVERWRITE
43# error "You need to set CONFIG_ENV_OVERWRITE"
44#endif
45
46DECLARE_GLOBAL_DATA_PTR;
47
48int board_early_init_f(void)
49{
50 /*
51 * default gpio configuration
52 * There are maximum 64 gpios controlled through 2 sets of registers
53 * the below configuration configures mainly initial LED status
54 */
55 kw_config_gpio(LSXL_OE_VAL_LOW,
56 LSXL_OE_VAL_HIGH,
57 LSXL_OE_LOW, LSXL_OE_HIGH);
58
59 /*
60 * Multi-Purpose Pins Functionality configuration
61 * These strappings are taken from the original vendor uboot port.
62 */
Albert ARIBAUD9d86f0c2012-11-26 11:27:36 +000063 static const u32 kwmpp_config[] = {
Michael Wallef214a202012-06-05 11:33:17 +000064 MPP0_SPI_SCn,
65 MPP1_SPI_MOSI,
66 MPP2_SPI_SCK,
67 MPP3_SPI_MISO,
68 MPP4_UART0_RXD,
69 MPP5_UART0_TXD,
70 MPP6_SYSRST_OUTn,
71 MPP7_GPO,
72 MPP8_GPIO,
73 MPP9_GPIO,
74 MPP10_GPO, /* HDD power */
75 MPP11_GPIO, /* USB Vbus enable */
76 MPP12_SD_CLK,
77 MPP13_SD_CMD,
78 MPP14_SD_D0,
79 MPP15_SD_D1,
80 MPP16_SD_D2,
81 MPP17_SD_D3,
82 MPP18_GPO, /* fan speed high */
83 MPP19_GPO, /* fan speed low */
84 MPP20_GE1_0,
85 MPP21_GE1_1,
86 MPP22_GE1_2,
87 MPP23_GE1_3,
88 MPP24_GE1_4,
89 MPP25_GE1_5,
90 MPP26_GE1_6,
91 MPP27_GE1_7,
92 MPP28_GPIO,
93 MPP29_GPIO,
94 MPP30_GE1_10,
95 MPP31_GE1_11,
96 MPP32_GE1_12,
97 MPP33_GE1_13,
98 MPP34_GPIO,
99 MPP35_GPIO,
100 MPP36_GPIO, /* function LED */
101 MPP37_GPIO, /* alarm LED */
102 MPP38_GPIO, /* info LED */
103 MPP39_GPIO, /* power LED */
104 MPP40_GPIO, /* fan alarm */
105 MPP41_GPIO, /* funtion button */
106 MPP42_GPIO, /* power switch */
107 MPP43_GPIO, /* power auto switch */
108 MPP44_GPIO,
109 MPP45_GPIO,
110 MPP46_GPIO,
111 MPP47_GPIO,
112 MPP48_GPIO, /* function red LED */
113 MPP49_GPIO,
114 0
115 };
116
117 kirkwood_mpp_conf(kwmpp_config, NULL);
118
119 return 0;
120}
121
122#define LED_OFF 0
123#define LED_ALARM_ON 1
124#define LED_ALARM_BLINKING 2
125#define LED_POWER_ON 3
126#define LED_POWER_BLINKING 4
127#define LED_INFO_ON 5
128#define LED_INFO_BLINKING 6
129
130static void __set_led(int blink_alarm, int blink_info, int blink_power,
131 int value_alarm, int value_info, int value_power)
132{
133 kw_gpio_set_blink(GPIO_ALARM_LED, blink_alarm);
134 kw_gpio_set_blink(GPIO_INFO_LED, blink_info);
135 kw_gpio_set_blink(GPIO_POWER_LED, blink_power);
136 kw_gpio_set_value(GPIO_ALARM_LED, value_alarm);
137 kw_gpio_set_value(GPIO_INFO_LED, value_info);
138 kw_gpio_set_value(GPIO_POWER_LED, value_power);
139}
140
141static void set_led(int state)
142{
143 switch (state) {
144 case LED_OFF:
Michael Wallea9f1a482012-07-30 10:47:12 +0000145 __set_led(0, 0, 0, 1, 1, 1);
Michael Wallef214a202012-06-05 11:33:17 +0000146 break;
147 case LED_ALARM_ON:
148 __set_led(0, 0, 0, 0, 1, 1);
149 break;
150 case LED_ALARM_BLINKING:
151 __set_led(1, 0, 0, 1, 1, 1);
152 break;
153 case LED_INFO_ON:
154 __set_led(0, 0, 0, 1, 0, 1);
155 break;
156 case LED_INFO_BLINKING:
157 __set_led(0, 1, 0, 1, 1, 1);
158 break;
159 case LED_POWER_ON:
160 __set_led(0, 0, 0, 1, 1, 0);
161 break;
162 case LED_POWER_BLINKING:
163 __set_led(0, 0, 1, 1, 1, 1);
164 break;
165 }
166}
167
168int board_init(void)
169{
170 /* address of boot parameters */
171 gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
172
173 set_led(LED_POWER_BLINKING);
174
175 return 0;
176}
177
178#ifdef CONFIG_MISC_INIT_R
Michael Wallea9f1a482012-07-30 10:47:12 +0000179static void check_power_switch(void)
180{
181 if (kw_gpio_get_value(GPIO_POWER_SWITCH)) {
Michael Walle9bd23172012-09-30 03:11:05 +0000182 /* turn off fan, HDD and USB power */
Michael Wallea9f1a482012-07-30 10:47:12 +0000183 kw_gpio_set_value(GPIO_HDD_POWER, 0);
184 kw_gpio_set_value(GPIO_USB_VBUS, 0);
Michael Walle9bd23172012-09-30 03:11:05 +0000185 kw_gpio_set_value(GPIO_FAN_HIGH, 1);
186 kw_gpio_set_value(GPIO_FAN_LOW, 1);
Michael Wallea9f1a482012-07-30 10:47:12 +0000187 set_led(LED_OFF);
188
189 /* loop until released */
190 while (kw_gpio_get_value(GPIO_POWER_SWITCH))
191 ;
192
193 /* turn power on again */
194 kw_gpio_set_value(GPIO_HDD_POWER, 1);
195 kw_gpio_set_value(GPIO_USB_VBUS, 1);
Michael Walle9bd23172012-09-30 03:11:05 +0000196 kw_gpio_set_value(GPIO_FAN_HIGH, 0);
197 kw_gpio_set_value(GPIO_FAN_LOW, 0);
Michael Wallea9f1a482012-07-30 10:47:12 +0000198 set_led(LED_POWER_BLINKING);
199 }
200}
201
Michael Wallef214a202012-06-05 11:33:17 +0000202void check_enetaddr(void)
203{
204 uchar enetaddr[6];
205
206 if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
207 /* signal unset/invalid ethaddr to user */
208 set_led(LED_INFO_BLINKING);
209 }
210}
211
212static void erase_environment(void)
213{
214 struct spi_flash *flash;
215
216 printf("Erasing environment..\n");
217 flash = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
218 if (!flash) {
219 printf("Erasing flash failed\n");
220 return;
221 }
222
223 spi_flash_erase(flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE);
224 spi_flash_free(flash);
225 do_reset(NULL, 0, 0, NULL);
226}
227
228static void rescue_mode(void)
229{
230 uchar enetaddr[6];
231
232 printf("Entering rescue mode..\n");
233#ifdef CONFIG_RANDOM_MACADDR
234 if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
Masahiro Yamadada384a92014-04-18 19:09:48 +0900235 eth_random_addr(enetaddr);
Michael Wallef214a202012-06-05 11:33:17 +0000236 if (eth_setenv_enetaddr("ethaddr", enetaddr)) {
237 printf("Failed to set ethernet address\n");
238 set_led(LED_ALARM_BLINKING);
239 return;
240 }
241 }
242#endif
243 setenv("bootsource", "rescue");
244}
245
246static void check_push_button(void)
247{
248 int i = 0;
249
250 while (!kw_gpio_get_value(GPIO_FUNC_BUTTON)) {
251 udelay(100000);
252 i++;
253
254 if (i == 10)
255 set_led(LED_INFO_ON);
256
257 if (i >= 100) {
258 set_led(LED_INFO_BLINKING);
259 break;
260 }
261 }
262
263 if (i >= 100)
264 erase_environment();
265 else if (i >= 10)
266 rescue_mode();
267}
268
269int misc_init_r(void)
270{
Michael Wallea9f1a482012-07-30 10:47:12 +0000271 check_power_switch();
Michael Wallef214a202012-06-05 11:33:17 +0000272 check_enetaddr();
273 check_push_button();
274
275 return 0;
276}
277#endif
278
279#ifdef CONFIG_SHOW_BOOT_PROGRESS
280void show_boot_progress(int progress)
281{
282 if (progress > 0)
283 return;
284
285 /* this is not an error, eg. bootp with autoload=no will trigger this */
286 if (progress == -BOOTSTAGE_ID_NET_LOADED)
287 return;
288
289 set_led(LED_ALARM_BLINKING);
290}
291#endif