Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_RENESAS/TARGET_RZ_A1H/pl310.c@147:ba84b7dc41a7, 2016-09-10 (annotated)

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7 
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /**************************************************************************//**
<> 144:ef7eb2e8f9f7 2 * @file pl310.c
<> 144:ef7eb2e8f9f7 3 * @brief Implementation of PL310 PrimeCell Level 2 Cache Controller functions
<> 144:ef7eb2e8f9f7 4 * @version
<> 144:ef7eb2e8f9f7 5 * @date 3 December 2014
<> 144:ef7eb2e8f9f7 6 *
<> 144:ef7eb2e8f9f7 7 * @note
<> 144:ef7eb2e8f9f7 8 *
<> 144:ef7eb2e8f9f7 9 ******************************************************************************/
<> 144:ef7eb2e8f9f7 10 /* Copyright (c) 2011 - 2013 ARM LIMITED
<> 144:ef7eb2e8f9f7 11
<> 144:ef7eb2e8f9f7 12 All rights reserved.
<> 144:ef7eb2e8f9f7 13 Redistribution and use in source and binary forms, with or without
<> 144:ef7eb2e8f9f7 14 modification, are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 15 - Redistributions of source code must retain the above copyright
<> 144:ef7eb2e8f9f7 16 notice, this list of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 17 - Redistributions in binary form must reproduce the above copyright
<> 144:ef7eb2e8f9f7 18 notice, this list of conditions and the following disclaimer in the
<> 144:ef7eb2e8f9f7 19 documentation and/or other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 20 - Neither the name of ARM nor the names of its contributors may be used
<> 144:ef7eb2e8f9f7 21 to endorse or promote products derived from this software without
<> 144:ef7eb2e8f9f7 22 specific prior written permission.
<> 144:ef7eb2e8f9f7 23 *
<> 144:ef7eb2e8f9f7 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 144:ef7eb2e8f9f7 25 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 144:ef7eb2e8f9f7 26 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
<> 144:ef7eb2e8f9f7 27 ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
<> 144:ef7eb2e8f9f7 28 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
<> 144:ef7eb2e8f9f7 29 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
<> 144:ef7eb2e8f9f7 30 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
<> 144:ef7eb2e8f9f7 31 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
<> 144:ef7eb2e8f9f7 32 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
<> 144:ef7eb2e8f9f7 33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
<> 144:ef7eb2e8f9f7 34 POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 35 ---------------------------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 36 #include "MBRZA1H.h"
<> 144:ef7eb2e8f9f7 37
<> 144:ef7eb2e8f9f7 38 //Cache Sync operation
<> 144:ef7eb2e8f9f7 39 void PL310_Sync(void)
<> 144:ef7eb2e8f9f7 40 {
<> 144:ef7eb2e8f9f7 41 PL310->CACHE_SYNC = 0x0;
<> 144:ef7eb2e8f9f7 42 }
<> 144:ef7eb2e8f9f7 43
<> 144:ef7eb2e8f9f7 44 //return Cache controller cache ID
<> 144:ef7eb2e8f9f7 45 int PL310_GetID (void)
<> 144:ef7eb2e8f9f7 46 {
<> 144:ef7eb2e8f9f7 47 return PL310->CACHE_ID;
<> 144:ef7eb2e8f9f7 48 }
<> 144:ef7eb2e8f9f7 49
<> 144:ef7eb2e8f9f7 50 //return Cache controller cache Type
<> 144:ef7eb2e8f9f7 51 int PL310_GetType (void)
<> 144:ef7eb2e8f9f7 52 {
<> 144:ef7eb2e8f9f7 53 return PL310->CACHE_TYPE;
<> 144:ef7eb2e8f9f7 54 }
<> 144:ef7eb2e8f9f7 55
<> 144:ef7eb2e8f9f7 56 //Invalidate all cache by way
<> 144:ef7eb2e8f9f7 57 void PL310_InvAllByWay (void)
<> 144:ef7eb2e8f9f7 58 {
<> 144:ef7eb2e8f9f7 59 unsigned int assoc;
<> 144:ef7eb2e8f9f7 60
<> 144:ef7eb2e8f9f7 61 if (PL310->AUX_CNT & (1<<16))
<> 144:ef7eb2e8f9f7 62 assoc = 16;
<> 144:ef7eb2e8f9f7 63 else
<> 144:ef7eb2e8f9f7 64 assoc = 8;
<> 144:ef7eb2e8f9f7 65
<> 144:ef7eb2e8f9f7 66 PL310->INV_WAY = (1 << assoc) - 1;
<> 144:ef7eb2e8f9f7 67 while(PL310->INV_WAY & ((1 << assoc) - 1)); //poll invalidate
<> 144:ef7eb2e8f9f7 68
<> 144:ef7eb2e8f9f7 69 PL310_Sync();
<> 144:ef7eb2e8f9f7 70 }
<> 144:ef7eb2e8f9f7 71
<> 144:ef7eb2e8f9f7 72 //Clean and Invalidate all cache by way
<> 144:ef7eb2e8f9f7 73 void PL310_CleanInvAllByWay (void)
<> 144:ef7eb2e8f9f7 74 {
<> 144:ef7eb2e8f9f7 75 unsigned int assoc;
<> 144:ef7eb2e8f9f7 76
<> 144:ef7eb2e8f9f7 77 if (PL310->AUX_CNT & (1<<16))
<> 144:ef7eb2e8f9f7 78 assoc = 16;
<> 144:ef7eb2e8f9f7 79 else
<> 144:ef7eb2e8f9f7 80 assoc = 8;
<> 144:ef7eb2e8f9f7 81
<> 144:ef7eb2e8f9f7 82 PL310->CLEAN_INV_WAY = (1 << assoc) - 1;
<> 144:ef7eb2e8f9f7 83 while(PL310->CLEAN_INV_WAY & ((1 << assoc) - 1)); //poll invalidate
<> 144:ef7eb2e8f9f7 84
<> 144:ef7eb2e8f9f7 85 PL310_Sync();
<> 144:ef7eb2e8f9f7 86 }
<> 144:ef7eb2e8f9f7 87
<> 144:ef7eb2e8f9f7 88 //Enable Cache
<> 144:ef7eb2e8f9f7 89 void PL310_Enable(void)
<> 144:ef7eb2e8f9f7 90 {
<> 144:ef7eb2e8f9f7 91 PL310->CONTROL = 0;
<> 144:ef7eb2e8f9f7 92 PL310->INTERRUPT_CLEAR = 0x000001FFuL;
<> 144:ef7eb2e8f9f7 93 PL310->DEBUG_CONTROL = 0;
<> 144:ef7eb2e8f9f7 94 PL310->DATA_LOCK_0_WAY = 0;
<> 144:ef7eb2e8f9f7 95 PL310->CACHE_SYNC = 0;
<> 144:ef7eb2e8f9f7 96
<> 144:ef7eb2e8f9f7 97 PL310->CONTROL = 0x01;
<> 144:ef7eb2e8f9f7 98 PL310_Sync();
<> 144:ef7eb2e8f9f7 99 }
<> 144:ef7eb2e8f9f7 100 //Disable Cache
<> 144:ef7eb2e8f9f7 101 void PL310_Disable(void)
<> 144:ef7eb2e8f9f7 102 {
<> 144:ef7eb2e8f9f7 103 PL310->CONTROL = 0x00;
<> 144:ef7eb2e8f9f7 104 PL310_Sync();
<> 144:ef7eb2e8f9f7 105 }
<> 144:ef7eb2e8f9f7 106
<> 144:ef7eb2e8f9f7 107 //Invalidate cache by physical address
<> 144:ef7eb2e8f9f7 108 void PL310_InvPa (void *pa)
<> 144:ef7eb2e8f9f7 109 {
<> 144:ef7eb2e8f9f7 110 PL310->INV_LINE_PA = (unsigned int)pa;
<> 144:ef7eb2e8f9f7 111 PL310_Sync();
<> 144:ef7eb2e8f9f7 112 }
<> 144:ef7eb2e8f9f7 113
<> 144:ef7eb2e8f9f7 114 //Clean cache by physical address
<> 144:ef7eb2e8f9f7 115 void PL310_CleanPa (void *pa)
<> 144:ef7eb2e8f9f7 116 {
<> 144:ef7eb2e8f9f7 117 PL310->CLEAN_LINE_PA = (unsigned int)pa;
<> 144:ef7eb2e8f9f7 118 PL310_Sync();
<> 144:ef7eb2e8f9f7 119 }
<> 144:ef7eb2e8f9f7 120
<> 144:ef7eb2e8f9f7 121 //Clean and invalidate cache by physical address
<> 144:ef7eb2e8f9f7 122 void PL310_CleanInvPa (void *pa)
<> 144:ef7eb2e8f9f7 123 {
<> 144:ef7eb2e8f9f7 124 PL310->CLEAN_INV_LINE_PA = (unsigned int)pa;
<> 144:ef7eb2e8f9f7 125 PL310_Sync();
<> 144:ef7eb2e8f9f7 126 }
<> 144:ef7eb2e8f9f7 127
<> 144:ef7eb2e8f9f7 128