140 lines
3.3 KiB
C
140 lines
3.3 KiB
C
/*
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* Copyright (C) 2012 sysmocom s.f.m.c. GmbH
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* Author: Holger Hans Peter Freyther
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <config.h>
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#include <common.h>
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#include <command.h>
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#include <status_led.h>
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#include <asm/gpio.h>
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#define BLINK_LED(LEN) \
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do { \
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int i; \
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for (i = 0; i < LEN; ++i) { \
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status_led_set(0, STATUS_LED_OFF); \
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udelay(900); \
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status_led_set(0, STATUS_LED_ON); \
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} \
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status_led_set(0, STATUS_LED_OFF); \
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} while(0);
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static int enable_netconsole(void)
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{
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printf("Enabling the network console.\n");
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/* reset in 60s if it is not interrupted */
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return run_command("setenv stdout nc; setenv stdin nc", 0);
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}
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static int env_failed(void)
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{
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printf("Environment clearing failed.\n");
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BLINK_LED(7);
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return -1;
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}
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static int dhcp_failed(void)
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{
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printf("DHCP failed. Giving up on recovery.\n");
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BLINK_LED(10);
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return -1;
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}
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static int tftp_failed(void)
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{
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printf("TFTP failed.\n");
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BLINK_LED(13);
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enable_netconsole();
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return -1;
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}
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static int flash_failed(void)
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{
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printf("Flash failed.\n");
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BLINK_LED(15);
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enable_netconsole();
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return -1;
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}
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/**
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* This will run the recovery process.
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* 1.) Enable the LED to give instant feedback.
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* 2.) Clear the environment in case of bad configuration.
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* 3.) Get a DHCP lease.
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* 4.) Try to tftpboot
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* 5.) Try to tftpboot with a different server
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* 6.) Flash
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* 7.) Reset or enter netconsole
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*/
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static int do_run_recovery(cmd_tbl_t *cmdtp, int flag, int argc, const char *argv[])
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{
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int rc;
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status_led_set(0, STATUS_LED_ON);
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printf("Starting the recovery process.\n");
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/* Wait a bit and check if the reset button is still pressed */
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run_command("sleep 5", 0);
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if (gpio_get_value(38) != 0) {
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printf("Recovery process aborted.\n");
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run_command("dhcp", 0);
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enable_netconsole();
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BLINK_LED(4);
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return 0;
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}
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BLINK_LED(5);
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status_led_set(0, STATUS_LED_ON);
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rc = run_command("mtdpart default; "
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"nand erase.part U-Boot-Environment", 0);
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if (rc < 0)
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return env_failed();
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rc = run_command("setenv autoload no; set netretry no; dhcp", 0);
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if (rc < 0)
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return dhcp_failed();
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rc = run_command("setenv filesize 0; "
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"tftp 85000000 sysmocom-recovery.ubi", 0);
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if (rc < 0) {
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rc = run_command("setenv filesize 0; "
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"set serverip 255.255.255.255; "
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"tftp 85000000 sysmocom-recovery.ubi", 0);
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}
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if (rc < 0)
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return tftp_failed();
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rc = run_command("nand erase.part RootFs; "
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"nand write 85000000 RootFs ${filesize} ", 0);
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if (rc < 0)
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return flash_failed();
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return run_command("reset", 0);
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}
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U_BOOT_CMD(
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run_recovery, CONFIG_SYS_MAXARGS, 1, do_run_recovery,
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"Run the sysmocom sysmoBTS recovery process", NULL
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);
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