/***********************************************************************
*
* Function: c_entry
*
* Purpose: Application entry point from the startup code
*
* Processing:
* See function.
*
* Parameters: None
*
* Outputs: None
*
* Returns: Always returns 1, or <0 on an error
*
* Notes: None
*
**********************************************************************/
int c_entry(void)
{
/* Disable interrupts in ARM core */
disable_irq_fiq();
/* Setup miscellaneous board functions */
phy3250_board_init();
/* Set virtual address of MMU table */
cp15_set_vmmu_addr((void *)
(IRAM_BASE + (256 * 1024) - (16 * 1024)));
/* Initialize interrupt system */
int_initialize(0xFFFFFFFF);
/* Install standard IRQ dispatcher at ARM IRQ vector */
int_install_arm_vec_handler(IRQ_VEC, (PFV) lpc32xx_irq_handler);
/* Enable simple WDT clock */
clkpwr_clk_en_dis(CLKPWR_WDOG_CLK, 1);
/* Install WDT interrupt handler as an IRQ interrupt */
int_install_ext_irq_handler(IRQ_WATCH,
(PFV) wdt_user_interrupt, ACTIVE_HIGH, 1);
/* Open WDT */
wdtdev = wdt_open(WDT, 0);
if (wdtdev == 0)
{
/* Error */
return -1;
}
/* Enable IRQ interrupts in the ARM core */
enable_irq();
/* Drive RESETOUT high/low/high using RESFRC1 */
wdtsetup.initial_setup = TRUE;
wdtsetup.pause = 1;
wdtsetup.resfrc2 = 0;
wdtsetup.resfrc1 = 0;
wdtsetup.m_res2 = 0;
wdtsetup.m_res1 = 0;
wdtsetup.ext_match_setup = WDT_EXT_MATCH_IDLE;
wdtsetup.match_setup = WDT_MATCH_IDLE;
wdtsetup.match0_update = FALSE;
wdtsetup.counter_update = FALSE;
wdtsetup.pulse_update = FALSE;
wdt_ioctl(wdtdev, WDT_SETUP, (UNS_32) &wdtsetup);
delay(10000);
wdtsetup.resfrc1 = 1;
wdt_ioctl(wdtdev, WDT_SETUP, (UNS_32) &wdtsetup);
delay(10000);
wdtsetup.resfrc1 = 0;
wdt_ioctl(wdtdev, WDT_SETUP, (UNS_32) &wdtsetup);
delay(10000);
#ifdef RESET_CHIP_example
/* generate a 10 ms delay followed by a 3 ms */
/* RESETOUT pulse using M_RES2 = 1 */
wdt_ioctl(wdtdev, WDT_TIMER_STOP, 0);
wdt_ioctl(wdtdev, WDT_INT_DISABLE, 0);
wdt_ioctl(wdtdev, WDT_INT_CLEAR, 0);
wdtsetup.initial_setup = TRUE;
wdtsetup.pause = 1;
wdtsetup.resfrc2 = 0;
wdtsetup.resfrc1 = 0;
wdtsetup.m_res2 = 1;
wdtsetup.m_res1 = 0;
wdtsetup.ext_match_setup = WDT_EXT_MATCH_HIGH;
wdtsetup.match_setup = WDT_MATCH_EN_INT_RESET;
wdtsetup.match0 = 10 * 13000;
wdtsetup.match0_update = TRUE;
wdtsetup.counter_update = FALSE;
wdtsetup.pulse = 3 * 13000 - 5;
wdtsetup.pulse_update = TRUE;
wdt_ioctl(wdtdev, WDT_SETUP, (UNS_32) &wdtsetup);
wdt_ioctl(wdtdev, WDT_INT_CLEAR, 0);
wdt_ioctl(wdtdev, WDT_INT_ENABLE, 0);
int_enable(IRQ_WATCH);
while (1);
#endif
/* Close WDT */
wdt_close(wdtdev);
return 1;
}
void exit_cb(uev_t *w, void *UNUSED(arg), int UNUSED(events))
{
wdt_close(w->ctx);
}
