1 /**
2 ******************************************************************************
3 * @file stm32l5xx_ll_icache.c
4 * @author MCD Application Team
5 * @brief ICACHE LL module driver.
6 ******************************************************************************
7 * @attention
8 *
9 * <h2><center>© Copyright (c) 2019 STMicroelectronics.
10 * All rights reserved.</center></h2>
11 *
12 * This software component is licensed by ST under BSD 3-Clause license,
13 * the "License"; You may not use this file except in compliance with the
14 * License. You may obtain a copy of the License at:
15 * opensource.org/licenses/BSD-3-Clause
16 *
17 ******************************************************************************
18 */
19 #if defined(USE_FULL_LL_DRIVER)
20
21 /* Includes ------------------------------------------------------------------*/
22 #include "stm32l5xx_ll_icache.h"
23 #ifdef USE_FULL_ASSERT
24 #include "stm32_assert.h"
25 #else
26 #define assert_param(expr) ((void)0U)
27 #endif /* USE_FULL_ASSERT */
28
29 /** @addtogroup STM32L5xx_LL_Driver
30 * @{
31 */
32
33 #if defined(ICACHE)
34
35 /** @defgroup ICACHE_LL ICACHE
36 * @{
37 */
38
39 /* Private types -------------------------------------------------------------*/
40 /* Private variables ---------------------------------------------------------*/
41 /* Private constants ---------------------------------------------------------*/
42 /* Private macros ------------------------------------------------------------*/
43 /** @defgroup ICACHE_LL_Private_Macros ICACHE Private Macros
44 * @{
45 */
46
47 #define IS_LL_ICACHE_REGION(__VALUE__) (((__VALUE__) == LL_ICACHE_REGION_0) || \
48 ((__VALUE__) == LL_ICACHE_REGION_1) || \
49 ((__VALUE__) == LL_ICACHE_REGION_2) || \
50 ((__VALUE__) == LL_ICACHE_REGION_3))
51
52 #define IS_LL_ICACHE_REGION_SIZE(__VALUE__) (((__VALUE__) == LL_ICACHE_REGIONSIZE_2MB) || \
53 ((__VALUE__) == LL_ICACHE_REGIONSIZE_4MB) || \
54 ((__VALUE__) == LL_ICACHE_REGIONSIZE_8MB) || \
55 ((__VALUE__) == LL_ICACHE_REGIONSIZE_16MB) || \
56 ((__VALUE__) == LL_ICACHE_REGIONSIZE_32MB) || \
57 ((__VALUE__) == LL_ICACHE_REGIONSIZE_64MB) || \
58 ((__VALUE__) == LL_ICACHE_REGIONSIZE_128MB))
59
60 #define IS_LL_ICACHE_MASTER_PORT(__VALUE__) (((__VALUE__) == LL_ICACHE_MASTER1_PORT) || \
61 ((__VALUE__) == LL_ICACHE_MASTER2_PORT))
62
63 #define IS_LL_ICACHE_OUTPUT_BURST(__VALUE__) (((__VALUE__) == LL_ICACHE_OUTPUT_BURST_WRAP) || \
64 ((__VALUE__) == LL_ICACHE_OUTPUT_BURST_INCR))
65
66 /**
67 * @}
68 */
69
70 /* Private function prototypes -----------------------------------------------*/
71
72 /* Exported functions --------------------------------------------------------*/
73 /** @addtogroup ICACHE_LL_Exported_Functions
74 * @{
75 */
76
77 /** @addtogroup ICACHE_LL_EF_REGION_Init
78 * @{
79 */
80
81 /**
82 * @brief Configure and enable the memory remapped region.
83 * @note The Instruction Cache and corresponding region must be disabled.
84 * @param Region This parameter can be one of the following values:
85 * @arg @ref LL_ICACHE_REGION_0
86 * @arg @ref LL_ICACHE_REGION_1
87 * @arg @ref LL_ICACHE_REGION_2
88 * @arg @ref LL_ICACHE_REGION_3
89 * @param ICACHE_RegionStruct pointer to a @ref LL_ICACHE_RegionTypeDef structure.
90 * @retval None
91 */
LL_ICACHE_ConfigRegion(uint32_t Region,LL_ICACHE_RegionTypeDef * ICACHE_RegionStruct)92 void LL_ICACHE_ConfigRegion(uint32_t Region, LL_ICACHE_RegionTypeDef *ICACHE_RegionStruct)
93 {
94 __IO uint32_t *reg;
95 uint32_t value;
96
97 /* Check the parameters */
98 assert_param(IS_LL_ICACHE_REGION(Region));
99 assert_param(IS_LL_ICACHE_REGION_SIZE(ICACHE_RegionStruct->Size));
100 assert_param(IS_LL_ICACHE_MASTER_PORT(ICACHE_RegionStruct->TrafficRoute));
101 assert_param(IS_LL_ICACHE_OUTPUT_BURST(ICACHE_RegionStruct->OutputBurstType));
102
103 /* Get region control register address */
104 reg = &(ICACHE->CRR0) + (1U * Region);
105
106 /* Region 2MB: BaseAddress size 8 bits, RemapAddress size 11 bits */
107 /* Region 4MB: BaseAddress size 7 bits, RemapAddress size 10 bits */
108 /* Region 8MB: BaseAddress size 6 bits, RemapAddress size 9 bits */
109 /* Region 16MB: BaseAddress size 5 bits, RemapAddress size 8 bits */
110 /* Region 32MB: BaseAddress size 4 bits, RemapAddress size 7 bits */
111 /* Region 64MB: BaseAddress size 3 bits, RemapAddress size 6 bits */
112 /* Region 128MB: BaseAddress size 2 bits, RemapAddress size 5 bits */
113 value = ((ICACHE_RegionStruct->BaseAddress & 0x1FFFFFFFU) >> 21U) & (0xFFU & ~(ICACHE_RegionStruct->Size - 1U));
114 value |= ((ICACHE_RegionStruct->RemapAddress >> 5U) & ((uint32_t)(0x7FFU & ~(ICACHE_RegionStruct->Size - 1U)) << ICACHE_CRRx_REMAPADDR_Pos));
115 value |= (ICACHE_RegionStruct->Size << ICACHE_CRRx_RSIZE_Pos) | ICACHE_RegionStruct->TrafficRoute | ICACHE_RegionStruct->OutputBurstType;
116 *reg = (value | ICACHE_CRRx_REN); /* Configure and enable region */
117 }
118
119 /**
120 * @}
121 */
122
123 /**
124 * @}
125 */
126
127 /**
128 * @}
129 */
130
131 #endif /* ICACHE */
132
133 /**
134 * @}
135 */
136
137 #endif /* USE_FULL_LL_DRIVER */
138
139 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
140
