Line data    Source code

       1            0 : /*
       2              :  * Copyright 2023-2024 NXP
       3              :  *
       4              :  * SPDX-License-Identifier: Apache-2.0
       5              :  */
       6              : 
       7              : #include <zephyr/devicetree.h>
       8              : #include <soc.h>
       9              : 
      10            0 : #define FLEXRAM_DT_NODE    DT_INST(0, nxp_flexram)
      11            0 : #define IOMUXC_GPR_DT_NODE DT_NODELABEL(iomuxcgpr)
      12              : 
      13              : #if defined(CONFIG_NXP_FLEXRAM_MAGIC_ADDR_API) || \
      14              :         defined(CONFIG_NXP_FLEXRAM_ERROR_INTERRUPT)
      15              : #define FLEXRAM_INTERRUPTS_USED
      16              : #endif
      17              : 
      18              : #if DT_PROP_HAS_IDX(FLEXRAM_DT_NODE, flexram_bank_spec, 0)
      19              : #define FLEXRAM_RUNTIME_BANKS_USED 1
      20              : #endif
      21              : 
      22              : #ifdef FLEXRAM_INTERRUPTS_USED
      23              : enum flexram_interrupt_cause {
      24              : #ifdef CONFIG_NXP_FLEXRAM_ERROR_INTERRUPT
      25              :         flexram_ocram_access_error,
      26              :         flexram_itcm_access_error,
      27              :         flexram_dtcm_access_error,
      28              : #endif
      29              : #ifdef CONFIG_NXP_FLEXRAM_MAGIC_ADDR_API
      30              :         flexram_ocram_magic_addr,
      31              :         flexram_itcm_magic_addr,
      32              :         flexram_dtcm_magic_addr,
      33              : #endif /* CONFIG_NXP_FLEXRAM_MAGIC_ADDR_API */
      34              : };
      35              : 
      36              : typedef void (*flexram_callback_t)(enum flexram_interrupt_cause, void *user_data);
      37              : 
      38              : void flexram_register_callback(flexram_callback_t callback, void *user_data);
      39              : #endif /* FLEXRAM_INTERRUPTS_USED */
      40              : 
      41              : #ifdef FLEXRAM_RUNTIME_BANKS_USED
      42              : 
      43              : /*
      44              :  * call from platform_init to set up flexram if using runtime map
      45              :  * must be inlined because cannot use stack
      46              :  */
      47              : #define GPR_FLEXRAM_REG_FILL(node_id, prop, idx) \
      48              :         (((uint32_t)DT_PROP_BY_IDX(node_id, prop, idx)) << (2 * idx))
      49              : static inline void flexram_dt_partition(void)
      50              : {
      51              :         /* iomuxc_gpr must be const (in ROM region) because used in reconfiguring ram */
      52              :         static IOMUXC_GPR_Type *const iomuxc_gpr =
      53              :                 (IOMUXC_GPR_Type *)DT_REG_ADDR(IOMUXC_GPR_DT_NODE);
      54              :         /* do not create stack variables or use any data from ram in this function */
      55              : #if defined(CONFIG_SOC_SERIES_IMXRT11XX)
      56              :         iomuxc_gpr->GPR17 = (DT_FOREACH_PROP_ELEM_SEP(FLEXRAM_DT_NODE, flexram_bank_spec,
      57              :                                                 GPR_FLEXRAM_REG_FILL, (+))) & 0xFFFF;
      58              :         iomuxc_gpr->GPR18 = (((DT_FOREACH_PROP_ELEM_SEP(FLEXRAM_DT_NODE, flexram_bank_spec,
      59              :                                                 GPR_FLEXRAM_REG_FILL, (+)))) >> 16) & 0xFFFF;
      60              : #elif defined(CONFIG_SOC_SERIES_IMXRT10XX)
      61              :         iomuxc_gpr->GPR17 = DT_FOREACH_PROP_ELEM_SEP(FLEXRAM_DT_NODE, flexram_bank_spec,
      62              :                                                 GPR_FLEXRAM_REG_FILL, (+));
      63              : #endif
      64              :         iomuxc_gpr->GPR16 |= IOMUXC_GPR_GPR16_FLEXRAM_BANK_CFG_SEL_MASK;
      65              : }
      66              : #endif /* FLEXRAM_RUNTIME_BANKS_USED */
      67              : 
      68              : #ifdef CONFIG_NXP_FLEXRAM_MAGIC_ADDR_API
      69              : /** @brief Sets magic address for OCRAM
      70              :  *
      71              :  * Magic address allows core interrupt from FlexRAM when address
      72              :  * is accessed.
      73              :  *
      74              :  * @param ocram_addr: An address in OCRAM to set magic function on.
      75              :  * @retval 0 on success
      76              :  * @retval -EINVAL if ocram_addr is not in OCRAM
      77              :  * @retval -ENODEV if there is no OCRAM allocation in flexram
      78              :  */
      79              : int flexram_set_ocram_magic_addr(uint32_t ocram_addr);
      80              : 
      81              : /** @brief Sets magic address for ITCM
      82              :  *
      83              :  * Magic address allows core interrupt from FlexRAM when address
      84              :  * is accessed.
      85              :  *
      86              :  * @param itcm_addr: An address in ITCM to set magic function on.
      87              :  * @retval 0 on success
      88              :  * @retval -EINVAL if itcm_addr is not in ITCM
      89              :  * @retval -ENODEV if there is no ITCM allocation in flexram
      90              :  */
      91              : int flexram_set_itcm_magic_addr(uint32_t itcm_addr);
      92              : 
      93              : /** @brief Sets magic address for DTCM
      94              :  *
      95              :  * Magic address allows core interrupt from FlexRAM when address
      96              :  * is accessed.
      97              :  *
      98              :  * @param dtcm_addr: An address in DTCM to set magic function on.
      99              :  * @retval 0 on success
     100              :  * @retval -EINVAL if dtcm_addr is not in DTCM
     101              :  * @retval -ENODEV if there is no DTCM allocation in flexram
     102              :  */
     103              : int flexram_set_dtcm_magic_addr(uint32_t dtcm_addr);
     104              : 
     105              : #endif /* CONFIG_NXP_FLEXRAM_MAGIC_ADDR_API */