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Add LM4 support for hard reset

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(And add STM32 support for disabling interrupts before reset, which
got missed before.)

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7470
TEST=from console, "reboot", then "reboot hard"

Change-Id: Ib98792abc0c91a01e2230b419fc876052380655a
This commit is contained in:
Randall Spangler
2012-05-18 15:56:30 -07:00
parent 8407b93f6d
commit b1bb8314bd
5 changed files with 62 additions and 70 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
include/system.h
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@@ -12,29 +12,17 @@
/* Reset causes */
enum system_reset_cause_t {
/* Unknown reset cause */
SYSTEM_RESET_UNKNOWN = 0,
/* System reset cause is known, but not one of the causes
* listed below */
SYSTEM_RESET_OTHER,
/* Brownout */
SYSTEM_RESET_BROWNOUT,
/* Power-on reset */
SYSTEM_RESET_POWER_ON,
/* Reset caused by asserting reset (RST#) pin */
SYSTEM_RESET_RESET_PIN,
/* Software requested cold reset */
SYSTEM_RESET_SOFT_COLD,
/* Software requested warm reset */
SYSTEM_RESET_SOFT_WARM,
/* Watchdog timer reset */
SYSTEM_RESET_WATCHDOG,
/* the RTC alarm triggered power on */
SYSTEM_RESET_RTC_ALARM,
/* the Wake pin triggered power on */
SYSTEM_RESET_WAKE_PIN,
/* the low battery detection triggered power on */
SYSTEM_RESET_LOW_BATTERY,
SYSTEM_RESET_UNKNOWN = 0, /* Unknown reset cause */
SYSTEM_RESET_OTHER, /* System reset cause is known, but not one
* of the causes listed below */
SYSTEM_RESET_BROWNOUT, /* Brownout */
SYSTEM_RESET_POWER_ON, /* Power-on reset */
SYSTEM_RESET_RESET_PIN, /* Reset pin asserted */
SYSTEM_RESET_SOFT, /* Soft reset trigger by core */
SYSTEM_RESET_WATCHDOG, /* Watchdog timer reset */
SYSTEM_RESET_RTC_ALARM, /* RTC alarm wake */
SYSTEM_RESET_WAKE_PIN, /* Wake pin triggered wake */
SYSTEM_RESET_LOW_BATTERY, /* Low battery triggered wake */
};
/* System images */
@@ -114,12 +102,10 @@ int system_get_board_version(void);
*/
const char *system_get_build_info(void);
/* Resets the system. If is_cold!=0, performs a cold reset (which
* resets on-chip peripherals); else performs a warm reset (which does
* not reset on-chip peripherals). If successful, does not return.
* Returns error if the reboot type cannot be requested (e.g. brownout
* or reset pin). */
int system_reset(int is_cold);
/* Resets the system. If is_hard, performs a hard reset, which cuts power to
* the entire system; else performs a soft reset (which resets the core and
* on-chip peripherals, without actually cutting power to the chip). */
void system_reset(int is_hard);
/* Sets a scratchpad register to the specified value. The scratchpad
* register must maintain its contents across a software-requested