1*a466ececSFabrice Gasnier /* SPDX-License-Identifier: GPL-2.0 */ 2*a466ececSFabrice Gasnier /* 3*a466ececSFabrice Gasnier * Copyright (C) 2018, STMicroelectronics - All Rights Reserved 4*a466ececSFabrice Gasnier * Author: Fabrice Gasnier <fabrice.gasnier@st.com>. 5*a466ececSFabrice Gasnier * 6*a466ececSFabrice Gasnier * Originally based on the Linux kernel v4.18 drivers/iio/adc/stm32-adc-core.h. 7*a466ececSFabrice Gasnier */ 8*a466ececSFabrice Gasnier 9*a466ececSFabrice Gasnier #ifndef __STM32_ADC_H 10*a466ececSFabrice Gasnier #define __STM32_ADC_H 11*a466ececSFabrice Gasnier 12*a466ececSFabrice Gasnier /* 13*a466ececSFabrice Gasnier * STM32 - ADC global register map 14*a466ececSFabrice Gasnier * ________________________________________________________ 15*a466ececSFabrice Gasnier * | Offset | Register | 16*a466ececSFabrice Gasnier * -------------------------------------------------------- 17*a466ececSFabrice Gasnier * | 0x000 | Master ADC1 | 18*a466ececSFabrice Gasnier * -------------------------------------------------------- 19*a466ececSFabrice Gasnier * | 0x100 | Slave ADC2 | 20*a466ececSFabrice Gasnier * -------------------------------------------------------- 21*a466ececSFabrice Gasnier * | 0x200 | Slave ADC3 | 22*a466ececSFabrice Gasnier * -------------------------------------------------------- 23*a466ececSFabrice Gasnier * | 0x300 | Master & Slave common regs | 24*a466ececSFabrice Gasnier * -------------------------------------------------------- 25*a466ececSFabrice Gasnier */ 26*a466ececSFabrice Gasnier #define STM32_ADC_MAX_ADCS 3 27*a466ececSFabrice Gasnier #define STM32_ADCX_COMN_OFFSET 0x300 28*a466ececSFabrice Gasnier 29*a466ececSFabrice Gasnier #include <common.h> 30*a466ececSFabrice Gasnier #include <clk.h> 31*a466ececSFabrice Gasnier #include <dm.h> 32*a466ececSFabrice Gasnier 33*a466ececSFabrice Gasnier /** 34*a466ececSFabrice Gasnier * struct stm32_adc_common - stm32 ADC driver common data (for all instances) 35*a466ececSFabrice Gasnier * @base: control registers base cpu addr 36*a466ececSFabrice Gasnier * @rate: clock rate used for analog circuitry 37*a466ececSFabrice Gasnier * @aclk: clock for the analog circuitry 38*a466ececSFabrice Gasnier * @bclk: bus clock common for all ADCs 39*a466ececSFabrice Gasnier * @vref: regulator reference 40*a466ececSFabrice Gasnier * @vref_uv: reference supply voltage (uV) 41*a466ececSFabrice Gasnier */ 42*a466ececSFabrice Gasnier struct stm32_adc_common { 43*a466ececSFabrice Gasnier void __iomem *base; 44*a466ececSFabrice Gasnier unsigned long rate; 45*a466ececSFabrice Gasnier struct clk aclk; 46*a466ececSFabrice Gasnier struct clk bclk; 47*a466ececSFabrice Gasnier struct udevice *vref; 48*a466ececSFabrice Gasnier int vref_uv; 49*a466ececSFabrice Gasnier }; 50*a466ececSFabrice Gasnier 51*a466ececSFabrice Gasnier #endif 52