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