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 <environment.h> 12 #include <net.h> 13 #include <malloc.h> 14 #include <netdev.h> 15 #include <miiphy.h> 16 #include <spi.h> 17 #include <spi_flash.h> 18 #include <asm/arch/soc.h> 19 #include <asm/arch/cpu.h> 20 #include <asm/arch/mpp.h> 21 #include <asm/arch/gpio.h> 22 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 37 * configured and the ncip is unset. Therefore, all netconsole packets are 38 * broadcasted. 39 * 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 46 DECLARE_GLOBAL_DATA_PTR; 47 48 int 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 mvebu_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 */ 63 static const u32 kwmpp_config[] = { 64 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 6 129 130 static 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 } 140 141 static void set_led(int state) 142 { 143 switch (state) { 144 case LED_OFF: 145 __set_led(0, 0, 0, 1, 1, 1); 146 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 } 167 168 int board_init(void) 169 { 170 /* address of boot parameters */ 171 gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100; 172 173 set_led(LED_POWER_BLINKING); 174 175 return 0; 176 } 177 178 #ifdef CONFIG_MISC_INIT_R 179 static void check_power_switch(void) 180 { 181 if (kw_gpio_get_value(GPIO_POWER_SWITCH)) { 182 /* turn off fan, HDD and USB power */ 183 kw_gpio_set_value(GPIO_HDD_POWER, 0); 184 kw_gpio_set_value(GPIO_USB_VBUS, 0); 185 kw_gpio_set_value(GPIO_FAN_HIGH, 1); 186 kw_gpio_set_value(GPIO_FAN_LOW, 1); 187 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); 196 kw_gpio_set_value(GPIO_FAN_HIGH, 0); 197 kw_gpio_set_value(GPIO_FAN_LOW, 0); 198 set_led(LED_POWER_BLINKING); 199 } 200 } 201 202 void check_enetaddr(void) 203 { 204 uchar enetaddr[6]; 205 206 if (!eth_env_get_enetaddr("ethaddr", enetaddr)) { 207 /* signal unset/invalid ethaddr to user */ 208 set_led(LED_INFO_BLINKING); 209 } 210 } 211 212 static 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 } 227 228 static void rescue_mode(void) 229 { 230 printf("Entering rescue mode..\n"); 231 env_set("bootsource", "rescue"); 232 } 233 234 static void check_push_button(void) 235 { 236 int i = 0; 237 238 while (!kw_gpio_get_value(GPIO_FUNC_BUTTON)) { 239 udelay(100000); 240 i++; 241 242 if (i == 10) 243 set_led(LED_INFO_ON); 244 245 if (i >= 100) { 246 set_led(LED_INFO_BLINKING); 247 break; 248 } 249 } 250 251 if (i >= 100) 252 erase_environment(); 253 else if (i >= 10) 254 rescue_mode(); 255 } 256 257 int misc_init_r(void) 258 { 259 check_power_switch(); 260 check_enetaddr(); 261 check_push_button(); 262 263 return 0; 264 } 265 #endif 266 267 #ifdef CONFIG_SHOW_BOOT_PROGRESS 268 void show_boot_progress(int progress) 269 { 270 if (progress > 0) 271 return; 272 273 /* this is not an error, eg. bootp with autoload=no will trigger this */ 274 if (progress == -BOOTSTAGE_ID_NET_LOADED) 275 return; 276 277 set_led(LED_ALARM_BLINKING); 278 } 279 #endif 280