diff options
Diffstat (limited to 'meta-steppeeagle/recipes-kernel/amd-wdt/files/amd_wdt.h')
| -rw-r--r-- | meta-steppeeagle/recipes-kernel/amd-wdt/files/amd_wdt.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/meta-steppeeagle/recipes-kernel/amd-wdt/files/amd_wdt.h b/meta-steppeeagle/recipes-kernel/amd-wdt/files/amd_wdt.h new file mode 100644 index 00000000..116f370a --- /dev/null +++ b/meta-steppeeagle/recipes-kernel/amd-wdt/files/amd_wdt.h @@ -0,0 +1,49 @@ +#ifndef _AMD_WDT_H_ +#define _AMD_WDT_H_ + +/* Module and version information */ +#define WDT_VERSION "0.1" +#define WDT_MODULE_NAME "AMD watchdog timer" +#define WDT_DRIVER_NAME WDT_MODULE_NAME ", v" WDT_VERSION + +#define WATCHDOG_HEARTBEAT 60 /* 60 units default heartbeat. */ +#define MAX_LENGTH (8 + 1) /* shutdown has 8 characters + NULL character */ + +/* Watchdog register definitions */ +#define AMD_ACPI_MMIO_BASE 0xFED80000 +#define AMD_WDT_MEM_MAP_OFFSET 0xB00 +#define AMD_WDT_MEM_MAP_SIZE 0x100 + +#define AMD_WDT_CONTROL(base) ((base) + 0x00) /* Watchdog Control */ + #define AMD_WDT_START_STOP_BIT (1 << 0) + #define AMD_WDT_FIRED_BIT (1 << 1) + #define AMD_WDT_ACTION_RESET_BIT (1 << 2) + #define AMD_WDT_DISABLE_BIT (1 << 3) + /* 6:4 bits Reserved */ + #define AMD_WDT_TRIGGER_BIT (1 << 7) +#define AMD_WDT_COUNT(base) ((base) + 0x04) /* Watchdog Count */ + #define AMD_WDT_COUNT_MASK 0xFFFF + +#define AMD_PM_WATCHDOG_EN_REG 0x00 + #define AMD_PM_WATCHDOG_TIMER_EN (0x01 << 7) + +#define AMD_PM_WATCHDOG_CONFIG_REG 0x03 + #define AMD_PM_WATCHDOG_32USEC_RES 0x0 + #define AMD_PM_WATCHDOG_10MSEC_RES 0x1 + #define AMD_PM_WATCHDOG_100MSEC_RES 0x2 + #define AMD_PM_WATCHDOG_1SEC_RES 0x3 +#define AMD_PM_WATCHDOG_CONFIG_MASK 0x3 + +/* IO port address for indirect access using ACPI PM registers */ +#define AMD_IO_PM_INDEX_REG 0xCD6 +#define AMD_IO_PM_DATA_REG 0xCD7 + +#define AMD_ACPI_MMIO_ADDR_MASK ~0x1FFF + +/* Watchdog device status */ +#define AMD_WDOG_ACTIVE 0 /* Is the watchdog running/active */ +#define AMD_WDOG_DEV_OPEN 1 /* Opended via /dev/watchdog */ +#define AMD_WDOG_ALLOW_RELEASE 2 /* Did we receive the magic char? */ +#define AMD_WDOG_NO_WAY_OUT 3 /* Is 'nowayout' feature set? */ + +#endif /* _AMD_WDT_H_ */ |