diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-06-11 11:22:05 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-06-11 11:22:05 +0000 |
| commit | 33e7c2abf4852c98d13072102277170e198c5220 (patch) | |
| tree | 3b236cf5aea03a8410829ccf4c74c9f46f906671 /ArmPlatformPkg/Include/Drivers | |
| parent | 0f4386e775c76c215425f529d4339fd4a85a47b9 (diff) | |
| download | edk2-platforms-33e7c2abf4852c98d13072102277170e198c5220.tar.xz | |
ArmPlatformPkg: Add SP805 Watchdog support
- Create SP805 Watchdog timer
- Enable this new driver on VExpress Cortex-A9x4 Core tile
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11794 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg/Include/Drivers')
| -rw-r--r-- | ArmPlatformPkg/Include/Drivers/SP805Watchdog.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/ArmPlatformPkg/Include/Drivers/SP805Watchdog.h b/ArmPlatformPkg/Include/Drivers/SP805Watchdog.h new file mode 100644 index 0000000000..10600a1553 --- /dev/null +++ b/ArmPlatformPkg/Include/Drivers/SP805Watchdog.h @@ -0,0 +1,92 @@ +/** @file
+*
+* Copyright (c) 2011, ARM Limited. All rights reserved.
+*
+* This program and the accompanying materials
+* are licensed and made available under the terms and conditions of the BSD License
+* which accompanies this distribution. The full text of the license may be found at
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+
+#ifndef __SP805_WATCHDOG_H__
+#define __SP805_WATCHDOG_H__
+
+#include <Base.h>
+#include <ArmPlatform.h>
+
+// SP805 Watchdog Registers
+#define SP805_WDOG_LOAD_REG (SP805_WDOG_BASE + 0x000)
+#define SP805_WDOG_CURRENT_REG (SP805_WDOG_BASE + 0x004)
+#define SP805_WDOG_CONTROL_REG (SP805_WDOG_BASE + 0x008)
+#define SP805_WDOG_INT_CLR_REG (SP805_WDOG_BASE + 0x00C)
+#define SP805_WDOG_RAW_INT_STS_REG (SP805_WDOG_BASE + 0x010)
+#define SP805_WDOG_MSK_INT_STS_REG (SP805_WDOG_BASE + 0x014)
+#define SP805_WDOG_LOCK_REG (SP805_WDOG_BASE + 0xC00)
+
+#define SP805_WDOG_PERIPH_ID0 (SP805_WDOG_BASE + 0xFE0)
+#define SP805_WDOG_PERIPH_ID1 (SP805_WDOG_BASE + 0xFE4)
+#define SP805_WDOG_PERIPH_ID2 (SP805_WDOG_BASE + 0xFE8)
+#define SP805_WDOG_PERIPH_ID3 (SP805_WDOG_BASE + 0xFEC)
+
+#define SP805_WDOG_PCELL_ID0 (SP805_WDOG_BASE + 0xFF0)
+#define SP805_WDOG_PCELL_ID1 (SP805_WDOG_BASE + 0xFF4)
+#define SP805_WDOG_PCELL_ID2 (SP805_WDOG_BASE + 0xFF8)
+#define SP805_WDOG_PCELL_ID3 (SP805_WDOG_BASE + 0xFFC)
+
+// Timer control register bit definitions
+#define SP805_WDOG_CTRL_INTEN BIT0
+#define SP805_WDOG_CTRL_RESEN BIT1
+#define SP805_WDOG_RAW_INT_STS_WDOGRIS BIT0
+#define SP805_WDOG_MSK_INT_STS_WDOGMIS BIT0
+
+#define SP805_WDOG_LOCK_IS_UNLOCKED 0x00000000
+#define SP805_WDOG_LOCK_IS_LOCKED 0x00000001
+#define SP805_WDOG_SPECIAL_UNLOCK_CODE 0x1ACCE551
+
+VOID
+EFIAPI
+ExitBootServicesEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+);
+
+EFI_STATUS
+EFIAPI
+SP805SetTimerPeriod (
+ IN CONST EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *This,
+ IN UINT64 TimerPeriod // In 100ns units
+);
+
+EFI_STATUS
+EFIAPI
+SP805GetTimerPeriod (
+ IN CONST EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *This,
+ OUT UINT64 *TimerPeriod
+);
+
+EFI_STATUS
+EFIAPI
+SP805RegisterHandler (
+ IN CONST EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *This,
+ IN EFI_WATCHDOG_TIMER_NOTIFY NotifyFunction
+);
+
+EFI_STATUS
+SP805Initialize (
+ VOID
+);
+
+EFI_STATUS
+EFIAPI
+SP805InstallProtocol (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+);
+
+
+#endif // __SP805_WATCHDOG_H__
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