Debug Agent timer lib for OMAP 35xx.\r
\r
Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>\r
- \r
- This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
#include <Base.h>\r
-#include <Library/BaseLib.h>
-#include <Library/IoLib.h>
-#include <Library/OmapLib.h>
+#include <Library/BaseLib.h>\r
+#include <Library/IoLib.h>\r
+#include <Library/OmapLib.h>\r
#include <Library/ArmLib.h>\r
-#include <Library/PcdLib.h>
+#include <Library/PcdLib.h>\r
\r
-#include <Omap3530/Omap3530.h>
+#include <Omap3530/Omap3530.h>\r
\r
\r
volatile UINT32 gVector;\r
-
-// Cached registers
-volatile UINT32 gTISR;
-volatile UINT32 gTCLR;
-volatile UINT32 gTLDR;
-volatile UINT32 gTCRR;
-volatile UINT32 gTIER;
+\r
+// Cached registers\r
+volatile UINT32 gTISR;\r
+volatile UINT32 gTCLR;\r
+volatile UINT32 gTLDR;\r
+volatile UINT32 gTCRR;\r
+volatile UINT32 gTIER;\r
\r
VOID\r
EnableInterruptSource (\r
\r
Bank = gVector / 32;\r
Bit = 1UL << (gVector % 32);\r
- \r
+\r
MmioWrite32 (INTCPS_MIR_CLEAR(Bank), Bit);\r
}\r
\r
{\r
UINTN Bank;\r
UINTN Bit;\r
- \r
+\r
Bank = gVector / 32;\r
- Bit = 1UL << (gVector % 32); \r
+ Bit = 1UL << (gVector % 32);\r
\r
MmioWrite32 (INTCPS_MIR_SET(Bank), Bit);\r
}\r
UINT32 TimerNumber;\r
\r
TimerNumber = PcdGet32(PcdOmap35xxDebugAgentTimer);\r
- gVector = InterruptVectorForTimer (TimerNumber);
+ gVector = InterruptVectorForTimer (TimerNumber);\r
\r
- // Set up the timer registers
- TimerBaseAddress = TimerBase (TimerNumber);
- gTISR = TimerBaseAddress + GPTIMER_TISR;
- gTCLR = TimerBaseAddress + GPTIMER_TCLR;
- gTLDR = TimerBaseAddress + GPTIMER_TLDR;
- gTCRR = TimerBaseAddress + GPTIMER_TCRR;
- gTIER = TimerBaseAddress + GPTIMER_TIER;
+ // Set up the timer registers\r
+ TimerBaseAddress = TimerBase (TimerNumber);\r
+ gTISR = TimerBaseAddress + GPTIMER_TISR;\r
+ gTCLR = TimerBaseAddress + GPTIMER_TCLR;\r
+ gTLDR = TimerBaseAddress + GPTIMER_TLDR;\r
+ gTCRR = TimerBaseAddress + GPTIMER_TCRR;\r
+ gTIER = TimerBaseAddress + GPTIMER_TIER;\r
\r
if ((TimerNumber < 2) || (TimerNumber > 9)) {\r
// This code assumes one the General Purpose timers is used\r
CpuDeadLoop ();\r
}\r
// Set source clock for GPT2 - GPT9 to SYS_CLK\r
- MmioOr32 (CM_CLKSEL_PER, 1 << (TimerNumber - 2)); \r
+ MmioOr32 (CM_CLKSEL_PER, 1 << (TimerNumber - 2));\r
\r
}\r
- \r
- \r
+\r
+\r
/**\r
Set the period for the debug agent timer. Zero means disable the timer.\r
\r
@param[in] TimerPeriodMilliseconds Frequency of the debug agent timer.\r
\r
-**/ \r
+**/\r
VOID\r
EFIAPI\r
DebugAgentTimerSetPeriod (\r
IN UINT32 TimerPeriodMilliseconds\r
)\r
{\r
- UINT64 TimerCount;
- INT32 LoadValue;
-
- if (TimerPeriodMilliseconds == 0) {
- // Turn off GPTIMER3
- MmioWrite32 (gTCLR, TCLR_ST_OFF);
-
- DisableInterruptSource ();
- } else {
- // Calculate required timer count
- TimerCount = DivU64x32(TimerPeriodMilliseconds * 1000000, PcdGet32(PcdDebugAgentTimerFreqNanoSeconds));
-
- // Set GPTIMER5 Load register
- LoadValue = (INT32) -TimerCount;
- MmioWrite32 (gTLDR, LoadValue);
- MmioWrite32 (gTCRR, LoadValue);
-
- // Enable Overflow interrupt
- MmioWrite32 (gTIER, TIER_TCAR_IT_DISABLE | TIER_OVF_IT_ENABLE | TIER_MAT_IT_DISABLE);
-
- // Turn on GPTIMER3, it will reload at overflow
- MmioWrite32 (gTCLR, TCLR_AR_AUTORELOAD | TCLR_ST_ON);
-
- EnableInterruptSource ();
- }
+ UINT64 TimerCount;\r
+ INT32 LoadValue;\r
+\r
+ if (TimerPeriodMilliseconds == 0) {\r
+ // Turn off GPTIMER3\r
+ MmioWrite32 (gTCLR, TCLR_ST_OFF);\r
+\r
+ DisableInterruptSource ();\r
+ } else {\r
+ // Calculate required timer count\r
+ TimerCount = DivU64x32(TimerPeriodMilliseconds * 1000000, PcdGet32(PcdDebugAgentTimerFreqNanoSeconds));\r
+\r
+ // Set GPTIMER5 Load register\r
+ LoadValue = (INT32) -TimerCount;\r
+ MmioWrite32 (gTLDR, LoadValue);\r
+ MmioWrite32 (gTCRR, LoadValue);\r
+\r
+ // Enable Overflow interrupt\r
+ MmioWrite32 (gTIER, TIER_TCAR_IT_DISABLE | TIER_OVF_IT_ENABLE | TIER_MAT_IT_DISABLE);\r
+\r
+ // Turn on GPTIMER3, it will reload at overflow\r
+ MmioWrite32 (gTCLR, TCLR_AR_AUTORELOAD | TCLR_ST_ON);\r
+\r
+ EnableInterruptSource ();\r
+ }\r
}\r
- \r
+\r
\r
/**\r
- Perform End Of Interrupt for the debug agent timer. This is called in the \r
- interrupt handler after the interrupt has been processed. \r
+ Perform End Of Interrupt for the debug agent timer. This is called in the\r
+ interrupt handler after the interrupt has been processed.\r
\r
-**/ \r
+**/\r
VOID\r
EFIAPI\r
DebugAgentTimerEndOfInterrupt (\r
VOID\r
)\r
{\r
- // Clear all timer interrupts
- MmioWrite32 (gTISR, TISR_CLEAR_ALL);
-
- // Poll interrupt status bits to ensure clearing
+ // Clear all timer interrupts\r
+ MmioWrite32 (gTISR, TISR_CLEAR_ALL);\r
+\r
+ // Poll interrupt status bits to ensure clearing\r
while ((MmioRead32 (gTISR) & TISR_ALL_INTERRUPT_MASK) != TISR_NO_INTERRUPTS_PENDING);\r
\r
MmioWrite32 (INTCPS_CONTROL, INTCPS_CONTROL_NEWFIQAGR);\r
- ArmDataSyncronizationBarrier ();\r
+ ArmDataSynchronizationBarrier ();\r
\r
}\r
\r
-
\ No newline at end of file
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