diff options
Diffstat (limited to 'board/st/stm32f746-disco/stm32f746-disco.c')
-rw-r--r-- | board/st/stm32f746-disco/stm32f746-disco.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/board/st/stm32f746-disco/stm32f746-disco.c b/board/st/stm32f746-disco/stm32f746-disco.c new file mode 100644 index 0000000000..0e04d14148 --- /dev/null +++ b/board/st/stm32f746-disco/stm32f746-disco.c @@ -0,0 +1,99 @@ +/* + * (C) Copyright 2016 + * Vikas Manocha, <vikas.manocha@st.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/armv7m.h> +#include <asm/arch/stm32.h> +#include <asm/arch/gpio.h> +#include <dm/platdata.h> +#include <dm/platform_data/serial_stm32x7.h> +#include <asm/arch/stm32_periph.h> +#include <asm/arch/stm32_defs.h> + +DECLARE_GLOBAL_DATA_PTR; + +const struct stm32_gpio_ctl gpio_ctl_gpout = { + .mode = STM32_GPIO_MODE_OUT, + .otype = STM32_GPIO_OTYPE_PP, + .speed = STM32_GPIO_SPEED_50M, + .pupd = STM32_GPIO_PUPD_NO, + .af = STM32_GPIO_AF0 +}; + +const struct stm32_gpio_ctl gpio_ctl_usart = { + .mode = STM32_GPIO_MODE_AF, + .otype = STM32_GPIO_OTYPE_PP, + .speed = STM32_GPIO_SPEED_50M, + .pupd = STM32_GPIO_PUPD_UP, + .af = STM32_GPIO_AF7 +}; + +static const struct stm32_gpio_dsc usart_gpio[] = { + {STM32_GPIO_PORT_A, STM32_GPIO_PIN_9}, /* TX */ + {STM32_GPIO_PORT_B, STM32_GPIO_PIN_7}, /* RX */ +}; + +int uart_setup_gpio(void) +{ + int i; + int rv = 0; + + clock_setup(GPIO_A_CLOCK_CFG); + clock_setup(GPIO_B_CLOCK_CFG); + for (i = 0; i < ARRAY_SIZE(usart_gpio); i++) { + rv = stm32_gpio_config(&usart_gpio[i], &gpio_ctl_usart); + if (rv) + goto out; + } + +out: + return rv; +} + +static const struct stm32x7_serial_platdata serial_platdata = { + .base = (struct stm32_usart *)USART1_BASE, + .clock = CONFIG_SYS_CLK_FREQ, +}; + +U_BOOT_DEVICE(stm32x7_serials) = { + .name = "serial_stm32x7", + .platdata = &serial_platdata, +}; + +u32 get_board_rev(void) +{ + return 0; +} + +int board_early_init_f(void) +{ + int res; + + res = uart_setup_gpio(); + clock_setup(USART1_CLOCK_CFG); + if (res) + return res; + + return 0; +} + +int board_init(void) +{ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + + return 0; +} + +int dram_init(void) +{ + gd->bd->bi_dram[0].start = CONFIG_SYS_RAM_BASE; + gd->bd->bi_dram[0].size = CONFIG_SYS_RAM_SIZE; + + gd->ram_size = CONFIG_SYS_RAM_SIZE; + return 0; +} |