mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
280 lines
5.9 KiB
C
280 lines
5.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2012 Michael Walle
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* Michael Walle <michael@walle.cc>
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*
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* Based on sheevaplug/sheevaplug.c by
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* Marvell Semiconductor <www.marvell.com>
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*/
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#include <common.h>
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#include <environment.h>
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#include <net.h>
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#include <malloc.h>
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#include <netdev.h>
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#include <miiphy.h>
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#include <spi.h>
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#include <spi_flash.h>
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#include <asm/arch/soc.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/mpp.h>
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#include <asm/arch/gpio.h>
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#include "lsxl.h"
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/*
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* Rescue mode
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*
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* Selected by holding the push button for 3 seconds, while powering on
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* the device.
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*
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* These linkstations don't have a (populated) serial port. There is no
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* way to access an (unmodified) board other than using the netconsole. If
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* you want to recover from a bad environment setting or an empty environment,
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* you can do this only with a working network connection. Therefore, a random
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* ethernet address is generated if none is set and a DHCP request is sent.
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* After a successful DHCP response is received, the network settings are
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* configured and the ncip is unset. Therefore, all netconsole packets are
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* broadcasted.
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* Additionally, the bootsource is set to 'rescue'.
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*/
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#ifndef CONFIG_ENV_OVERWRITE
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# error "You need to set CONFIG_ENV_OVERWRITE"
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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int board_early_init_f(void)
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{
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/*
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* default gpio configuration
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* There are maximum 64 gpios controlled through 2 sets of registers
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* the below configuration configures mainly initial LED status
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*/
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mvebu_config_gpio(LSXL_OE_VAL_LOW,
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LSXL_OE_VAL_HIGH,
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LSXL_OE_LOW, LSXL_OE_HIGH);
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/*
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* Multi-Purpose Pins Functionality configuration
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* These strappings are taken from the original vendor uboot port.
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*/
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static const u32 kwmpp_config[] = {
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MPP0_SPI_SCn,
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MPP1_SPI_MOSI,
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MPP2_SPI_SCK,
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MPP3_SPI_MISO,
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MPP4_UART0_RXD,
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MPP5_UART0_TXD,
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MPP6_SYSRST_OUTn,
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MPP7_GPO,
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MPP8_GPIO,
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MPP9_GPIO,
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MPP10_GPO, /* HDD power */
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MPP11_GPIO, /* USB Vbus enable */
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MPP12_SD_CLK,
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MPP13_SD_CMD,
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MPP14_SD_D0,
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MPP15_SD_D1,
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MPP16_SD_D2,
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MPP17_SD_D3,
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MPP18_GPO, /* fan speed high */
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MPP19_GPO, /* fan speed low */
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MPP20_GE1_0,
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MPP21_GE1_1,
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MPP22_GE1_2,
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MPP23_GE1_3,
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MPP24_GE1_4,
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MPP25_GE1_5,
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MPP26_GE1_6,
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MPP27_GE1_7,
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MPP28_GPIO,
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MPP29_GPIO,
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MPP30_GE1_10,
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MPP31_GE1_11,
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MPP32_GE1_12,
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MPP33_GE1_13,
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MPP34_GPIO,
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MPP35_GPIO,
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MPP36_GPIO, /* function LED */
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MPP37_GPIO, /* alarm LED */
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MPP38_GPIO, /* info LED */
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MPP39_GPIO, /* power LED */
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MPP40_GPIO, /* fan alarm */
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MPP41_GPIO, /* funtion button */
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MPP42_GPIO, /* power switch */
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MPP43_GPIO, /* power auto switch */
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MPP44_GPIO,
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MPP45_GPIO,
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MPP46_GPIO,
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MPP47_GPIO,
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MPP48_GPIO, /* function red LED */
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MPP49_GPIO,
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0
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};
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kirkwood_mpp_conf(kwmpp_config, NULL);
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return 0;
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}
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#define LED_OFF 0
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#define LED_ALARM_ON 1
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#define LED_ALARM_BLINKING 2
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#define LED_POWER_ON 3
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#define LED_POWER_BLINKING 4
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#define LED_INFO_ON 5
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#define LED_INFO_BLINKING 6
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static void __set_led(int blink_alarm, int blink_info, int blink_power,
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int value_alarm, int value_info, int value_power)
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{
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kw_gpio_set_blink(GPIO_ALARM_LED, blink_alarm);
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kw_gpio_set_blink(GPIO_INFO_LED, blink_info);
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kw_gpio_set_blink(GPIO_POWER_LED, blink_power);
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kw_gpio_set_value(GPIO_ALARM_LED, value_alarm);
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kw_gpio_set_value(GPIO_INFO_LED, value_info);
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kw_gpio_set_value(GPIO_POWER_LED, value_power);
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}
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static void set_led(int state)
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{
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switch (state) {
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case LED_OFF:
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__set_led(0, 0, 0, 1, 1, 1);
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break;
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case LED_ALARM_ON:
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__set_led(0, 0, 0, 0, 1, 1);
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break;
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case LED_ALARM_BLINKING:
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__set_led(1, 0, 0, 1, 1, 1);
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break;
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case LED_INFO_ON:
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__set_led(0, 0, 0, 1, 0, 1);
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break;
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case LED_INFO_BLINKING:
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__set_led(0, 1, 0, 1, 1, 1);
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break;
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case LED_POWER_ON:
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__set_led(0, 0, 0, 1, 1, 0);
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break;
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case LED_POWER_BLINKING:
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__set_led(0, 0, 1, 1, 1, 1);
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break;
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}
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}
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int board_init(void)
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{
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/* address of boot parameters */
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gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
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set_led(LED_POWER_BLINKING);
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return 0;
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}
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#ifdef CONFIG_MISC_INIT_R
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static void check_power_switch(void)
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{
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if (kw_gpio_get_value(GPIO_POWER_SWITCH)) {
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/* turn off fan, HDD and USB power */
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kw_gpio_set_value(GPIO_HDD_POWER, 0);
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kw_gpio_set_value(GPIO_USB_VBUS, 0);
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kw_gpio_set_value(GPIO_FAN_HIGH, 1);
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kw_gpio_set_value(GPIO_FAN_LOW, 1);
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set_led(LED_OFF);
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/* loop until released */
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while (kw_gpio_get_value(GPIO_POWER_SWITCH))
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;
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/* turn power on again */
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kw_gpio_set_value(GPIO_HDD_POWER, 1);
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kw_gpio_set_value(GPIO_USB_VBUS, 1);
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kw_gpio_set_value(GPIO_FAN_HIGH, 0);
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kw_gpio_set_value(GPIO_FAN_LOW, 0);
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set_led(LED_POWER_BLINKING);
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}
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}
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void check_enetaddr(void)
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{
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uchar enetaddr[6];
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if (!eth_env_get_enetaddr("ethaddr", enetaddr)) {
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/* signal unset/invalid ethaddr to user */
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set_led(LED_INFO_BLINKING);
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}
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}
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static void erase_environment(void)
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{
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struct spi_flash *flash;
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printf("Erasing environment..\n");
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flash = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
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if (!flash) {
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printf("Erasing flash failed\n");
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return;
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}
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spi_flash_erase(flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE);
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spi_flash_free(flash);
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do_reset(NULL, 0, 0, NULL);
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}
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static void rescue_mode(void)
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{
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printf("Entering rescue mode..\n");
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env_set("bootsource", "rescue");
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}
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static void check_push_button(void)
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{
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int i = 0;
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while (!kw_gpio_get_value(GPIO_FUNC_BUTTON)) {
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udelay(100000);
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i++;
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if (i == 10)
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set_led(LED_INFO_ON);
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if (i >= 100) {
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set_led(LED_INFO_BLINKING);
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break;
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}
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}
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if (i >= 100)
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erase_environment();
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else if (i >= 10)
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rescue_mode();
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}
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int misc_init_r(void)
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{
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check_power_switch();
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check_enetaddr();
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check_push_button();
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return 0;
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}
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#endif
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#ifdef CONFIG_SHOW_BOOT_PROGRESS
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void show_boot_progress(int progress)
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{
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if (progress > 0)
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return;
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/* this is not an error, eg. bootp with autoload=no will trigger this */
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if (progress == -BOOTSTAGE_ID_NET_LOADED)
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return;
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set_led(LED_ALARM_BLINKING);
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}
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#endif
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