diff options
Diffstat (limited to 'roms/u-boot/include/stm32_rcc.h')
-rw-r--r-- | roms/u-boot/include/stm32_rcc.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/roms/u-boot/include/stm32_rcc.h b/roms/u-boot/include/stm32_rcc.h new file mode 100644 index 000000000..b559ea772 --- /dev/null +++ b/roms/u-boot/include/stm32_rcc.h @@ -0,0 +1,97 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) STMicroelectronics SA 2017 + * Author(s): Patrice CHOTARD, <patrice.chotard@foss.st.com> for STMicroelectronics. + */ + +#ifndef __STM32_RCC_H_ +#define __STM32_RCC_H_ + +#define AHB_PSC_1 0 +#define AHB_PSC_2 0x8 +#define AHB_PSC_4 0x9 +#define AHB_PSC_8 0xA +#define AHB_PSC_16 0xB +#define AHB_PSC_64 0xC +#define AHB_PSC_128 0xD +#define AHB_PSC_256 0xE +#define AHB_PSC_512 0xF + +#define APB_PSC_1 0 +#define APB_PSC_2 0x4 +#define APB_PSC_4 0x5 +#define APB_PSC_8 0x6 +#define APB_PSC_16 0x7 + +struct pll_psc { + u8 pll_m; + u16 pll_n; + u8 pll_p; + u8 pll_q; + u8 ahb_psc; + u8 apb1_psc; + u8 apb2_psc; +}; + +struct stm32_clk_info { + struct pll_psc sys_pll_psc; + bool has_overdrive; + bool v2; +}; + +enum soc_family { + STM32F42X, + STM32F469, + STM32F7, + STM32MP1, +}; + +enum apb { + APB1, + APB2, +}; + +struct stm32_rcc_clk { + char *drv_name; + enum soc_family soc; +}; + +struct stm32_rcc_regs { + u32 cr; /* RCC clock control */ + u32 pllcfgr; /* RCC PLL configuration */ + u32 cfgr; /* RCC clock configuration */ + u32 cir; /* RCC clock interrupt */ + u32 ahb1rstr; /* RCC AHB1 peripheral reset */ + u32 ahb2rstr; /* RCC AHB2 peripheral reset */ + u32 ahb3rstr; /* RCC AHB3 peripheral reset */ + u32 rsv0; + u32 apb1rstr; /* RCC APB1 peripheral reset */ + u32 apb2rstr; /* RCC APB2 peripheral reset */ + u32 rsv1[2]; + u32 ahb1enr; /* RCC AHB1 peripheral clock enable */ + u32 ahb2enr; /* RCC AHB2 peripheral clock enable */ + u32 ahb3enr; /* RCC AHB3 peripheral clock enable */ + u32 rsv2; + u32 apb1enr; /* RCC APB1 peripheral clock enable */ + u32 apb2enr; /* RCC APB2 peripheral clock enable */ + u32 rsv3[2]; + u32 ahb1lpenr; /* RCC AHB1 periph clk enable in low pwr mode */ + u32 ahb2lpenr; /* RCC AHB2 periph clk enable in low pwr mode */ + u32 ahb3lpenr; /* RCC AHB3 periph clk enable in low pwr mode */ + u32 rsv4; + u32 apb1lpenr; /* RCC APB1 periph clk enable in low pwr mode */ + u32 apb2lpenr; /* RCC APB2 periph clk enable in low pwr mode */ + u32 rsv5[2]; + u32 bdcr; /* RCC Backup domain control */ + u32 csr; /* RCC clock control & status */ + u32 rsv6[2]; + u32 sscgr; /* RCC spread spectrum clock generation */ + u32 plli2scfgr; /* RCC PLLI2S configuration */ + /* below registers are only available on STM32F46x and STM32F7 SoCs*/ + u32 pllsaicfgr; /* PLLSAI configuration */ + u32 dckcfgr; /* dedicated clocks configuration register */ + /* Below registers are only available on STM32F7 SoCs */ + u32 dckcfgr2; /* dedicated clocks configuration register */ +}; + +#endif /* __STM32_RCC_H_ */ |