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Diffstat (limited to 'SamsungPlatformPkgOrigen/ExynosPkg/Library/TimerLib/TimerLib.c')
| -rwxr-xr-x | SamsungPlatformPkgOrigen/ExynosPkg/Library/TimerLib/TimerLib.c | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/SamsungPlatformPkgOrigen/ExynosPkg/Library/TimerLib/TimerLib.c b/SamsungPlatformPkgOrigen/ExynosPkg/Library/TimerLib/TimerLib.c deleted file mode 100755 index 6baf2cec6..000000000 --- a/SamsungPlatformPkgOrigen/ExynosPkg/Library/TimerLib/TimerLib.c +++ /dev/null @@ -1,234 +0,0 @@ -/** @file - - Copyright (c) 2011, Samsung Electronics Co. All rights reserved.<BR> - - 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. - -**/ - -#include <Base.h> - -#include <Library/BaseLib.h> -#include <Library/TimerLib.h> -#include <Library/DebugLib.h> -#include <Library/PcdLib.h> -#include <Library/IoLib.h> -#include <Platform/ArmPlatform.h> -#include <Library/ExynosTimerLib.h> - - -// Setup SP810's Timer2 for managing delay functions. And Timer3 for Performance counter -// Note: ArmVE's Timer0 and Timer1 are used by TimerDxe. -RETURN_STATUS -EFIAPI -TimerConstructor ( - VOID - ) -{ - UINT32 PWMTimerBase; - UINT32 rwVal; - - PWMTimerBase = PcdGet32(PcdPWMTimerBase); - -/** - This function is for initializing for PWM Timer - Timer 2 = > Delay Counter - Timer 3 = > Performance Counter -**/ -// PWM Input Clock(ACLK_100) is 100 Mhz so We need to prescale about 1Mhz to make udelay function - rwVal = MmioRead32 (PWMTimerBase + PWM_TCFG0_OFFSET); - rwVal &= ~(0xFF << PRESCALE_GRP1_START_POS); - rwVal |= (PRESCALE_TIMER_GRP1 << PRESCALE_GRP1_START_POS); - MmioWrite32 ((PWMTimerBase + PWM_TCFG0_OFFSET), rwVal); - MmioWrite32 ((PWMTimerBase + PWM_TCFG1_OFFSET), 0x0); - -// PWM Timer INT disable - rwVal = MmioRead32 (PWMTimerBase + PWM_TINT_CSTAT_OFFSET); - MmioWrite32 ((PWMTimerBase + PWM_TINT_CSTAT_OFFSET), rwVal & ~(TIMER_INTR_MASK(TIMER_2) | TIMER_INTR_MASK(TIMER_3))); - -// PWM Timer 2,3 make to stop - rwVal = MmioRead32 (PWMTimerBase + PWM_TCON_OFFSET); - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal & (STOP_TIMER_VAL(TIMER_2) | STOP_TIMER_VAL(TIMER_3))); - -// PWM Timer 3 used by Free running counter with Auto re-load mode - MmioWrite32 ((PWMTimerBase + PWM_TCNTB3_OFFSET), MAX_COUNT_VAL); -// Set and Clear PWM Manually update for Timer 3 - rwVal = MmioRead32 (PWMTimerBase + PWM_TCON_OFFSET); - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal | UPDATE_COUNT_BUF_MASK(TIMER_3)); - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal & ~UPDATE_COUNT_BUF_MASK(TIMER_3)); -// Set Auto re-load and start Timer - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal | RELOAD_AND_START(TIMER_3)); - - DEBUG ((EFI_D_ERROR, "Timer 2,3 Enabled\n")); - - return RETURN_SUCCESS; -} - -/** - Stalls the CPU for at least the given number of microseconds. - - Stalls the CPU for the number of microseconds specified by MicroSeconds. - - @param MicroSeconds The minimum number of microseconds to delay. - - @return The value of MicroSeconds inputted. - -**/ -UINTN -EFIAPI -MicroSecondDelay ( - IN UINTN MicroSeconds - ) -{ - UINT32 rwVal; - UINT32 PWMTimerBase; - - PWMTimerBase=PcdGet32(PcdPWMTimerBase); - // load the timer count register - MmioWrite32 ((PWMTimerBase + PWM_TCNTB2_OFFSET), MicroSeconds); - - -// PWM Timer 2 stop - rwVal = MmioRead32 (PWMTimerBase + PWM_TCON_OFFSET); - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal & STOP_TIMER_VAL(TIMER_2)); - -// Set and Clear PWM Manually update for Timer 2 - rwVal = MmioRead32 (PWMTimerBase + PWM_TCON_OFFSET); - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal | UPDATE_COUNT_BUF_MASK(TIMER_2)); - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal & ~UPDATE_COUNT_BUF_MASK(TIMER_2)); - //Start Timer 2 - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal | START_TIMER(TIMER_2)); - //Wait for requested delay time - while (MmioRead32 (PWMTimerBase + PWM_TCNTO2_OFFSET) > 0) { - ; - } - - return MicroSeconds; -} - -/** - Stalls the CPU for at least the given number of nanoseconds. - - Stalls the CPU for the number of nanoseconds specified by NanoSeconds. - - @param NanoSeconds The minimum number of nanoseconds to delay. - - @return The value of NanoSeconds inputted. - -**/ -UINTN -EFIAPI -NanoSecondDelay ( - IN UINTN NanoSeconds - ) -{ - UINT32 MicroSeconds; - UINT32 rwVal; - UINT32 PWMTimerBase; - - PWMTimerBase=PcdGet32(PcdPWMTimerBase); - - // Round up to 1us Tick Number - MicroSeconds = (UINT32)NanoSeconds / 1000; - MicroSeconds += ((UINT32)NanoSeconds % 1000) == 0 ? 0 : 1; - // load the timer count register - MmioWrite32 ((PWMTimerBase + PWM_TCNTB2_OFFSET), MicroSeconds); - -// PWM Timer 2 stop - rwVal = MmioRead32 (PWMTimerBase + PWM_TCON_OFFSET); - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal & STOP_TIMER_VAL(TIMER_2)); -// Set and Clear PWM Manually update for Timer 2 - rwVal = MmioRead32 (PWMTimerBase + PWM_TCON_OFFSET); - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal | UPDATE_COUNT_BUF_MASK(TIMER_2)); - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal & ~UPDATE_COUNT_BUF_MASK(TIMER_2)); - //Start Timer 2 - rwVal = MmioRead32 (PWMTimerBase + PWM_TCON_OFFSET); - MmioWrite32 ((PWMTimerBase + PWM_TCON_OFFSET), rwVal | START_TIMER(TIMER_2)); - - //Wait for requested delay time - while (MmioRead32 (PWMTimerBase + PWM_TCNTO0_OFFSET) > 0) { - ; - } - - return NanoSeconds; -} - -/** - Retrieves the current value of a 64-bit free running performance counter. - - The counter can either count up by 1 or count down by 1. If the physical - performance counter counts by a larger increment, then the counter values - must be translated. The properties of the counter can be retrieved from - GetPerformanceCounterProperties(). - - @return The current value of the free running performance counter. - -**/ -UINT64 -EFIAPI -GetPerformanceCounter ( - VOID - ) -{ - UINT32 PWMTimerBase; - - PWMTimerBase=PcdGet32(PcdPWMTimerBase); - // Free running 64-bit/32-bit counter is needed here. - // Don't think we need this to boot, just to do performance profile - // ASSERT (FALSE); - UINT32 val = MmioRead32 (PWMTimerBase + PWM_TCNTO3_OFFSET); - - ASSERT(val > 0); - - return (UINT64)val; -} - - -/** - Retrieves the 64-bit frequency in Hz and the range of performance counter - values. - - If StartValue is not NULL, then the value that the performance counter starts - with immediately after is it rolls over is returned in StartValue. If - EndValue is not NULL, then the value that the performance counter end with - immediately before it rolls over is returned in EndValue. The 64-bit - frequency of the performance counter in Hz is always returned. If StartValue - is less than EndValue, then the performance counter counts up. If StartValue - is greater than EndValue, then the performance counter counts down. For - example, a 64-bit free running counter that counts up would have a StartValue - of 0 and an EndValue of 0xFFFFFFFFFFFFFFFF. A 24-bit free running counter - that counts down would have a StartValue of 0xFFFFFF and an EndValue of 0. - - @param StartValue The value the performance counter starts with when it - rolls over. - @param EndValue The value that the performance counter ends with before - it rolls over. - - @return The frequency in Hz. - -**/ -UINT64 -EFIAPI -GetPerformanceCounterProperties ( - OUT UINT64 *StartValue, OPTIONAL - OUT UINT64 *EndValue OPTIONAL - ) -{ - if (StartValue != NULL) { - // Timer starts with the reload value - *StartValue = (UINT64)0ULL; - } - - if (EndValue != NULL) { - // Timer counts up to 0xFFFFFFFF - *EndValue = 0xFFFFFFFF; - } - - return 1000000; -} |