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Diffstat (limited to 'board/buffalo/lsxl/lsxl.c')
| -rw-r--r-- | board/buffalo/lsxl/lsxl.c | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/board/buffalo/lsxl/lsxl.c b/board/buffalo/lsxl/lsxl.c new file mode 100644 index 0000000000..fe155112c9 --- /dev/null +++ b/board/buffalo/lsxl/lsxl.c @@ -0,0 +1,283 @@ +/* + * Copyright (c) 2012 Michael Walle + * Michael Walle <michael@walle.cc> + * + * Based on sheevaplug/sheevaplug.c by + * Marvell Semiconductor <www.marvell.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <net.h> +#include <malloc.h> +#include <netdev.h> +#include <miiphy.h> +#include <asm/arch/kirkwood.h> +#include <asm/arch/cpu.h> +#include <asm/arch/mpp.h> +#include <asm/arch/gpio.h> +#include <spi_flash.h> + +#include "lsxl.h" + +/* + * Rescue mode + * + * Selected by holding the push button for 3 seconds, while powering on + * the device. + * + * These linkstations don't have a (populated) serial port. There is no + * way to access an (unmodified) board other than using the netconsole. If + * you want to recover from a bad environment setting or an empty environment, + * you can do this only with a working network connection. Therefore, a random + * ethernet address is generated if none is set and a DHCP request is sent. + * After a successful DHCP response is received, the network settings are + * configured and the ncip parameter is set to the serverip. Eg. for a working + * resuce mode, you should set 'next-server' to the host where the netconsole + * client is started. + * Additionally, the bootsource is set to 'rescue'. + */ + +#ifndef CONFIG_ENV_OVERWRITE +# error "You need to set CONFIG_ENV_OVERWRITE" +#endif + +DECLARE_GLOBAL_DATA_PTR; + +int board_early_init_f(void) +{ + /* + * default gpio configuration + * There are maximum 64 gpios controlled through 2 sets of registers + * the below configuration configures mainly initial LED status + */ + kw_config_gpio(LSXL_OE_VAL_LOW, + LSXL_OE_VAL_HIGH, + LSXL_OE_LOW, LSXL_OE_HIGH); + + /* + * Multi-Purpose Pins Functionality configuration + * These strappings are taken from the original vendor uboot port. + */ + u32 kwmpp_config[] = { + MPP0_SPI_SCn, + MPP1_SPI_MOSI, + MPP2_SPI_SCK, + MPP3_SPI_MISO, + MPP4_UART0_RXD, + MPP5_UART0_TXD, + MPP6_SYSRST_OUTn, + MPP7_GPO, + MPP8_GPIO, + MPP9_GPIO, + MPP10_GPO, /* HDD power */ + MPP11_GPIO, /* USB Vbus enable */ + MPP12_SD_CLK, + MPP13_SD_CMD, + MPP14_SD_D0, + MPP15_SD_D1, + MPP16_SD_D2, + MPP17_SD_D3, + MPP18_GPO, /* fan speed high */ + MPP19_GPO, /* fan speed low */ + MPP20_GE1_0, + MPP21_GE1_1, + MPP22_GE1_2, + MPP23_GE1_3, + MPP24_GE1_4, + MPP25_GE1_5, + MPP26_GE1_6, + MPP27_GE1_7, + MPP28_GPIO, + MPP29_GPIO, + MPP30_GE1_10, + MPP31_GE1_11, + MPP32_GE1_12, + MPP33_GE1_13, + MPP34_GPIO, + MPP35_GPIO, + MPP36_GPIO, /* function LED */ + MPP37_GPIO, /* alarm LED */ + MPP38_GPIO, /* info LED */ + MPP39_GPIO, /* power LED */ + MPP40_GPIO, /* fan alarm */ + MPP41_GPIO, /* funtion button */ + MPP42_GPIO, /* power switch */ + MPP43_GPIO, /* power auto switch */ + MPP44_GPIO, + MPP45_GPIO, + MPP46_GPIO, + MPP47_GPIO, + MPP48_GPIO, /* function red LED */ + MPP49_GPIO, + 0 + }; + + kirkwood_mpp_conf(kwmpp_config, NULL); + + return 0; +} + +#define LED_OFF 0 +#define LED_ALARM_ON 1 +#define LED_ALARM_BLINKING 2 +#define LED_POWER_ON 3 +#define LED_POWER_BLINKING 4 +#define LED_INFO_ON 5 +#define LED_INFO_BLINKING 6 + +static void __set_led(int blink_alarm, int blink_info, int blink_power, + int value_alarm, int value_info, int value_power) +{ + kw_gpio_set_blink(GPIO_ALARM_LED, blink_alarm); + kw_gpio_set_blink(GPIO_INFO_LED, blink_info); + kw_gpio_set_blink(GPIO_POWER_LED, blink_power); + kw_gpio_set_value(GPIO_ALARM_LED, value_alarm); + kw_gpio_set_value(GPIO_INFO_LED, value_info); + kw_gpio_set_value(GPIO_POWER_LED, value_power); +} + +static void set_led(int state) +{ + switch (state) { + case LED_OFF: + __set_led(0, 0, 0, 0, 0, 0); + break; + case LED_ALARM_ON: + __set_led(0, 0, 0, 0, 1, 1); + break; + case LED_ALARM_BLINKING: + __set_led(1, 0, 0, 1, 1, 1); + break; + case LED_INFO_ON: + __set_led(0, 0, 0, 1, 0, 1); + break; + case LED_INFO_BLINKING: + __set_led(0, 1, 0, 1, 1, 1); + break; + case LED_POWER_ON: + __set_led(0, 0, 0, 1, 1, 0); + break; + case LED_POWER_BLINKING: + __set_led(0, 0, 1, 1, 1, 1); + break; + } +} + +int board_init(void) +{ + /* address of boot parameters */ + gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100; + + set_led(LED_POWER_BLINKING); + + return 0; +} + +#ifdef CONFIG_MISC_INIT_R +void check_enetaddr(void) +{ + uchar enetaddr[6]; + + if (!eth_getenv_enetaddr("ethaddr", enetaddr)) { + /* signal unset/invalid ethaddr to user */ + set_led(LED_INFO_BLINKING); + } +} + +static void erase_environment(void) +{ + struct spi_flash *flash; + + printf("Erasing environment..\n"); + flash = spi_flash_probe(0, 0, 1000000, SPI_MODE_3); + if (!flash) { + printf("Erasing flash failed\n"); + return; + } + + spi_flash_erase(flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE); + spi_flash_free(flash); + do_reset(NULL, 0, 0, NULL); +} + +static void rescue_mode(void) +{ + uchar enetaddr[6]; + + printf("Entering rescue mode..\n"); +#ifdef CONFIG_RANDOM_MACADDR + if (!eth_getenv_enetaddr("ethaddr", enetaddr)) { + eth_random_enetaddr(enetaddr); + if (eth_setenv_enetaddr("ethaddr", enetaddr)) { + printf("Failed to set ethernet address\n"); + set_led(LED_ALARM_BLINKING); + return; + } + } +#endif + setenv("bootsource", "rescue"); +} + +static void check_push_button(void) +{ + int i = 0; + + while (!kw_gpio_get_value(GPIO_FUNC_BUTTON)) { + udelay(100000); + i++; + + if (i == 10) + set_led(LED_INFO_ON); + + if (i >= 100) { + set_led(LED_INFO_BLINKING); + break; + } + } + + if (i >= 100) + erase_environment(); + else if (i >= 10) + rescue_mode(); +} + +int misc_init_r(void) +{ + check_enetaddr(); + check_push_button(); + + return 0; +} +#endif + +#ifdef CONFIG_SHOW_BOOT_PROGRESS +void show_boot_progress(int progress) +{ + if (progress > 0) + return; + + /* this is not an error, eg. bootp with autoload=no will trigger this */ + if (progress == -BOOTSTAGE_ID_NET_LOADED) + return; + + set_led(LED_ALARM_BLINKING); +} +#endif |
