timer.h File Reference

#include <types.h>

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Functions
void	watchdog_set (const size_t index, unsigned int timeout_ms)
	Setup the watchdog to expire in timeout_ms milliseconds. More...
void	watchdog_poke (const size_t index)
	Signal the watchdog that we are still running. More...
void	watchdog_disable (const size_t index)
	Disable the hardware watchdog. More...
int	watchdog_is_running (const size_t index)
	Return true if the watchdog is configured and running. More...
void	soc_timer_init (void)

Function Documentation

soc_timer_init()

void soc_timer_init

(

void

)

Definition at line 119 of file timer.c.

References tickrate.

Referenced by mainboard_init().

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watchdog_disable()

void watchdog_disable

(

const size_t

index

)

Disable the hardware watchdog.

Parameters

index

Index of watchdog to configure.

Definition at line 190 of file timer.c.

References ARRAY_SIZE, assert, BIOS_DEBUG, cn81xx_timer::cwd_wdog, GTI_PF_BAR0, printk, and write64().

Referenced by bdk_watchdog_disable(), and soc_final().

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watchdog_is_running()

int watchdog_is_running

(

const size_t

index

)

Return true if the watchdog is configured and running.

Parameters

index

Index of watchdog to configure.

Returns

Non-zero if watchdog is running.

Definition at line 209 of file timer.c.

References ARRAY_SIZE, assert, cn81xx_timer::cwd_wdog, GTI_CWD_WDOG_MODE_MASK, GTI_CWD_WDOG_MODE_SHIFT, GTI_PF_BAR0, read64(), and val.

Referenced by bdk_watchdog_is_running().

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watchdog_poke()

void watchdog_poke

(

const size_t

index

)

Signal the watchdog that we are still running.

Parameters

index

Index of watchdog to configure.

Definition at line 174 of file timer.c.

References ARRAY_SIZE, assert, cn81xx_timer::cwd_poke, GTI_PF_BAR0, and write64().

Referenced by bdk_watchdog_poke(), bootblock_soc_init(), and platform_romstage_main().

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watchdog_set()

void watchdog_set	(	const size_t	index,
		unsigned int	timeout_ms
	)

Setup the watchdog to expire in timeout_ms milliseconds.

When the watchdog expires, the chip three things happen: 1) Expire 1: interrupt that is ignored by the BDK 2) Expire 2: DEL3T interrupt, which is disabled and ignored 3) Expire 3: Soft reset of the chip

Since we want a soft reset, we actually program the watchdog to expire at the timeout / 3.

Parameters

index	Index of watchdog to configure
timeout_ms	Timeout in milliseconds.

Definition at line 137 of file timer.c.

References ARRAY_SIZE, assert, BIOS_DEBUG, clrsetbits64, cn81xx_timer::cwd_wdog, GTI_CWD_WDOG_LEN_MASK, GTI_CWD_WDOG_LEN_SHIFT, GTI_CWD_WDOG_MODE_MASK, GTI_CWD_WDOG_MODE_SHIFT, GTI_PF_BAR0, printk, and thunderx_get_io_clock().

Referenced by bdk_watchdog_set(), and bootblock_soc_init().

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