include/drivers/st/stm32mp1_clkfunc.h

   1 /*
   2  * Copyright (c) 2017-2018, STMicroelectronics - All Rights Reserved
   3  *
   4  * SPDX-License-Identifier: BSD-3-Clause
   5  */
   6
   7 #ifndef STM32MP1_CLKFUNC_H
   8 #define STM32MP1_CLKFUNC_H
   9
  10 #include <stdbool.h>
  11
  12 #include <libfdt.h>
  13
  14 enum stm32mp_osc_id {
  15         _HSI,
  16         _HSE,
  17         _CSI,
  18         _LSI,
  19         _LSE,
  20         _I2S_CKIN,
  21         _USB_PHY_48,
  22         NB_OSC,
  23         _UNKNOWN_OSC_ID = 0xFF
  24 };
  25
  26 extern const char *stm32mp_osc_node_label[NB_OSC];
  27
  28 int fdt_osc_read_freq(const char *name, uint32_t *freq);
  29 bool fdt_osc_read_bool(enum stm32mp_osc_id osc_id, const char *prop_name);
  30 uint32_t fdt_osc_read_uint32_default(enum stm32mp_osc_id osc_id,
  31                                      const char *prop_name,
  32                                      uint32_t dflt_value);
  33
  34 uint32_t fdt_rcc_read_addr(void);
  35 int fdt_rcc_read_uint32_array(const char *prop_name,
  36                               uint32_t *array, uint32_t count);
  37 int fdt_rcc_subnode_offset(const char *name);
  38 const fdt32_t *fdt_rcc_read_prop(const char *prop_name, int *lenp);
  39 bool fdt_get_rcc_secure_status(void);
  40
  41 uintptr_t fdt_get_stgen_base(void);
  42 int fdt_get_clock_id(int node);
  43
  44 #endif /* STM32MP1_CLKFUNC_H */