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https://github.com/Telecominfraproject/OpenCellular.git
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fb425cf11f
Use the same prototype for watchdog_init() everywhere. One version takes a parameters and one doesn't. We don't need the parameter since we have a #define. Tidy this up. Also move watchdog defines into watchdog.h. BUG=chrome-os-partner:10145 TEST=build for all boards Change-Id: I38ae63d7cc137b93017c850e767703d5f90f56ad Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/24394 Reviewed-by: Randall Spangler <rspangler@chromium.org>
137 lines
4.1 KiB
C
137 lines
4.1 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Main routine for Chrome EC
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*/
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#include "clock.h"
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#include "config.h"
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#include "eeprom.h"
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#include "eoption.h"
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#include "flash.h"
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#include "gpio.h"
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#include "hooks.h"
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#include "jtag.h"
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#include "keyboard.h"
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#include "keyboard_scan.h"
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#include "system.h"
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#include "task.h"
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#include "timer.h"
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#include "uart.h"
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#include "vboot.h"
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#include "watchdog.h"
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int main(void)
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{
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/* Pre-initialization (pre-verified boot) stage. Initialization at
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* this level should do as little as possible, because verified boot
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* may need to jump to another image, which will repeat this
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* initialization. In particular, modules should NOT enable
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* interrupts.*/
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/* Configure the pin multiplexers and GPIOs */
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configure_board();
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jtag_pre_init();
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gpio_pre_init();
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/* Initialize interrupts, but don't enable any of them. Note that
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* task scheduling is not enabled until task_start() below. */
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task_pre_init();
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#ifdef CONFIG_FLASH
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flash_pre_init();
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#endif
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#ifdef CONFIG_VBOOT
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/* Verified boot pre-init. This write-protects flash if necessary.
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* Flash and GPIOs must be initialized first. */
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vboot_pre_init();
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#endif
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/* Initialize the system module. This enables the hibernate clock
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* source we need to calibrate the internal oscillator. */
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system_pre_init();
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system_common_pre_init();
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/* Set the CPU clocks / PLLs. System is now running at full speed. */
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clock_init();
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/* Initialize timer. Everything after this can be benchmarked.
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* get_time() and udelay() may now be used. usleep() requires task
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* scheduling, so cannot be used yet. Note that interrupts declared
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* via DECLARE_IRQ() call timer routines when profiling is enabled, so
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* timer init() must be before uart_init(). */
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timer_init();
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/* Main initialization stage. Modules may enable interrupts here. */
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/* Initialize UART. uart_printf(), etc. may now be used. */
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uart_init();
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if (system_jumped_to_this_image())
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uart_printf("[%T UART initialized after sysjump]\n");
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else {
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uart_puts("\n\n--- UART initialized after reboot ---\n");
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uart_printf("[Reset cause: %s]\n",
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system_get_reset_cause_string());
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}
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uart_printf("[Image: %s, %s]\n",
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system_get_image_copy_string(),
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system_get_build_info());
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#ifdef CONFIG_TASK_WATCHDOG
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/* Intialize watchdog timer. All lengthy operations between now and
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* task_start() must periodically call watchdog_reload() to avoid
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* triggering a watchdog reboot. (This pretty much applies only to
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* verified boot, because all *other* lengthy operations should be done
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* by tasks.) */
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watchdog_init();
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#endif
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/* Verified boot needs to read the initial keyboard state and EEPROM
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* contents. EEPROM must be up first, so keyboard_scan can toggle
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* debugging settings via keys held at boot. */
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#ifdef CONFIG_EEPROM
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eeprom_init();
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#endif
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#ifdef CONFIG_EOPTION
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eoption_init();
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#endif
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#ifdef CONFIG_TASK_KEYSCAN
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keyboard_scan_init();
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#endif
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#ifdef CONFIG_VBOOT
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/* Verified boot initialization. This may jump to another image, which
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* will need to reconfigure / reinitialize the system, so as little as
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* possible should be done above this step.
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*
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* Note that steps above here may be done TWICE per boot, once in the
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* RO image and once in the RW image. */
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vboot_init();
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/* If system is locked, disable system jumps now that vboot has had its
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* chance to jump to a RW image. */
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if (system_is_locked())
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system_disable_jump();
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#endif
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/* Initialize other driver modules. These can occur in any order.
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* Non-driver modules with tasks do their inits from their task
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* functions, not here. */
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hook_notify(HOOK_INIT, 0);
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#ifdef BOARD_link
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/* Reduce core clock now that init is done */
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clock_enable_pll(0);
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#endif
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/* Print the init time. Not completely accurate because it can't take
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* into account the time for the first few module inits, but it'll at
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* least catch the majority of them. */
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uart_printf("[%T Inits done]\n");
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/* Launch task scheduling (never returns) */
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return task_start();
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}
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