include/stm32_rcc.h

   1 /*
   2  * Copyright (C) STMicroelectronics SA 2017
   3  * Author(s): Patrice CHOTARD, <patrice.chotard@st.com> for STMicroelectronics.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #ifndef __STM32_RCC_H_
   9 #define __STM32_RCC_H_
  10
  11 #define AHB_PSC_1                       0
  12 #define AHB_PSC_2                       0x8
  13 #define AHB_PSC_4                       0x9
  14 #define AHB_PSC_8                       0xA
  15 #define AHB_PSC_16                      0xB
  16 #define AHB_PSC_64                      0xC
  17 #define AHB_PSC_128                     0xD
  18 #define AHB_PSC_256                     0xE
  19 #define AHB_PSC_512                     0xF
  20
  21 #define APB_PSC_1                       0
  22 #define APB_PSC_2                       0x4
  23 #define APB_PSC_4                       0x5
  24 #define APB_PSC_8                       0x6
  25 #define APB_PSC_16                      0x7
  26
  27 struct pll_psc {
  28         u8      pll_m;
  29         u16     pll_n;
  30         u8      pll_p;
  31         u8      pll_q;
  32         u8      ahb_psc;
  33         u8      apb1_psc;
  34         u8      apb2_psc;
  35 };
  36
  37 struct stm32_clk_info {
  38         struct pll_psc sys_pll_psc;
  39         bool has_overdrive;
  40         bool v2;
  41 };
  42
  43 enum soc_family {
  44         STM32F4,
  45         STM32F7,
  46 };
  47
  48 struct stm32_rcc_clk {
  49         char *drv_name;
  50         enum soc_family soc;
  51 };
  52
  53 #endif /* __STM32_RCC_H_ */