mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-03 13:39:53 +00:00
27e8bdb7c0
This helps us keep track of how long vboot is taking on the EC. Signed-off-by: Randall Spangler <rspangler@chromium.org> BUG=chrome-os-partner:9651 TEST=reboot system and look at debug log. time shouldn't start over after it jumps to image A. Change-Id: Iad86e90d42dabf1c67b2c2be80dda1151cf9a288
132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*
|
|
* Main routine for Chrome EC
|
|
*/
|
|
|
|
#include "clock.h"
|
|
#include "config.h"
|
|
#include "eeprom.h"
|
|
#include "eoption.h"
|
|
#include "flash.h"
|
|
#include "gpio.h"
|
|
#include "hooks.h"
|
|
#include "jtag.h"
|
|
#include "keyboard.h"
|
|
#include "keyboard_scan.h"
|
|
#include "system.h"
|
|
#include "task.h"
|
|
#include "timer.h"
|
|
#include "uart.h"
|
|
#include "vboot.h"
|
|
#include "watchdog.h"
|
|
|
|
int main(void)
|
|
{
|
|
/* Pre-initialization (pre-verified boot) stage. Initialization at
|
|
* this level should do as little as possible, because verified boot
|
|
* may need to jump to another image, which will repeat this
|
|
* initialization. In particular, modules should NOT enable
|
|
* interrupts.*/
|
|
|
|
/* Configure the pin multiplexers and GPIOs */
|
|
configure_board();
|
|
jtag_pre_init();
|
|
gpio_pre_init();
|
|
|
|
/* Initialize interrupts, but don't enable any of them. Note that
|
|
* task scheduling is not enabled until task_start() below. */
|
|
task_pre_init();
|
|
|
|
#ifdef CONFIG_FLASH
|
|
flash_pre_init();
|
|
#endif
|
|
|
|
#ifdef CONFIG_VBOOT
|
|
/* Verified boot pre-init. This write-protects flash if necessary.
|
|
* Flash and GPIOs must be initialized first. */
|
|
vboot_pre_init();
|
|
#endif
|
|
|
|
/* Initialize the system module. This enables the hibernate clock
|
|
* source we need to calibrate the internal oscillator. */
|
|
system_pre_init();
|
|
system_common_pre_init();
|
|
|
|
/* Set the CPU clocks / PLLs. System is now running at full speed. */
|
|
clock_init();
|
|
|
|
/* Initialize timer. Everything after this can be benchmarked.
|
|
* get_time() and udelay() may now be used. usleep() requires task
|
|
* scheduling, so cannot be used yet. Note that interrupts declared
|
|
* via DECLARE_IRQ() call timer routines when profiling is enabled, so
|
|
* timer init() must be before uart_init(). */
|
|
timer_init();
|
|
|
|
/* Main initialization stage. Modules may enable interrupts here. */
|
|
|
|
/* Initialize UART. uart_printf(), etc. may now be used. */
|
|
uart_init();
|
|
if (system_jumped_to_this_image())
|
|
uart_printf("[%T UART initialized after sysjump]\n");
|
|
else {
|
|
uart_puts("\n\n--- UART initialized after reboot ---\n");
|
|
uart_printf("[Reset cause: %s]\n",
|
|
system_get_reset_cause_string());
|
|
}
|
|
uart_printf("[Image: %s, %s]\n",
|
|
system_get_image_copy_string(),
|
|
system_get_build_info());
|
|
|
|
|
|
#ifdef CONFIG_TASK_WATCHDOG
|
|
/* Intialize watchdog timer. All lengthy operations between now and
|
|
* task_start() must periodically call watchdog_reload() to avoid
|
|
* triggering a watchdog reboot. (This pretty much applies only to
|
|
* verified boot, because all *other* lengthy operations should be done
|
|
* by tasks.) */
|
|
watchdog_init(1100);
|
|
#endif
|
|
|
|
/* Verified boot needs to read the initial keyboard state and EEPROM
|
|
* contents. EEPROM must be up first, so keyboard_scan can toggle
|
|
* debugging settings via keys held at boot. */
|
|
#ifdef CONFIG_EEPROM
|
|
eeprom_init();
|
|
#endif
|
|
#ifdef CONFIG_EOPTION
|
|
eoption_init();
|
|
#endif
|
|
#ifdef CONFIG_TASK_KEYSCAN
|
|
keyboard_scan_init();
|
|
#endif
|
|
|
|
#ifdef CONFIG_VBOOT
|
|
/* Verified boot initialization. This may jump to another image, which
|
|
* will need to reconfigure / reinitialize the system, so as little as
|
|
* possible should be done above this step.
|
|
*
|
|
* Note that steps above here may be done TWICE per boot, once in the
|
|
* RO image and once in the RW image. */
|
|
vboot_init();
|
|
#endif
|
|
|
|
/* Initialize other driver modules. These can occur in any order.
|
|
* Non-driver modules with tasks do their inits from their task
|
|
* functions, not here. */
|
|
hook_notify(HOOK_INIT, 0);
|
|
|
|
#ifdef BOARD_link
|
|
/* Reduce core clock now that init is done */
|
|
clock_enable_pll(0);
|
|
#endif
|
|
/* Print the init time. Not completely accurate because it can't take
|
|
* into account the time for the first few module inits, but it'll at
|
|
* least catch the majority of them. */
|
|
uart_printf("[%T Inits done]\n");
|
|
|
|
/* Launch task scheduling (never returns) */
|
|
return task_start();
|
|
}
|