1 // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause 2 /* 3 * Copyright (C) 2018, STMicroelectronics - All Rights Reserved 4 * Copyright (C) 2020 Engicam S.r.l. 5 * Copyright (C) 2020 Amarula Solutions(India) 6 */ 7 8 #include <common.h> 9 #include <asm/io.h> 10 11 /* board early initialisation in board_f: need to use global variable */ 12 static u32 opp_voltage_mv __section(".data"); 13 board_vddcore_init(u32 voltage_mv)14void board_vddcore_init(u32 voltage_mv) 15 { 16 if (IS_ENABLED(CONFIG_PMIC_STPMIC1) && CONFIG_IS_ENABLED(POWER_SUPPORT)) 17 opp_voltage_mv = voltage_mv; 18 } 19 board_early_init_f(void)20int board_early_init_f(void) 21 { 22 return 0; 23 } 24 25 #ifdef CONFIG_DEBUG_UART_BOARD_INIT board_debug_uart_init(void)26void board_debug_uart_init(void) 27 { 28 #if (CONFIG_DEBUG_UART_BASE == STM32_UART4_BASE) 29 30 #define RCC_MP_APB1ENSETR (STM32_RCC_BASE + 0x0A00) 31 #define RCC_MP_AHB4ENSETR (STM32_RCC_BASE + 0x0A28) 32 33 /* UART4 clock enable */ 34 setbits_le32(RCC_MP_APB1ENSETR, BIT(16)); 35 36 #define GPIOG_BASE 0x50008000 37 /* GPIOG clock enable */ 38 writel(BIT(6), RCC_MP_AHB4ENSETR); 39 /* GPIO configuration for ST boards: Uart4 TX = G11 */ 40 writel(0xffbfffff, GPIOG_BASE + 0x00); 41 writel(0x00006000, GPIOG_BASE + 0x24); 42 #else 43 44 #error("CONFIG_DEBUG_UART_BASE: not supported value") 45 46 #endif 47 } 48 #endif 49