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Diffstat (limited to 'board/st/stm32f746-disco/stm32f746-disco.c')
-rw-r--r--board/st/stm32f746-disco/stm32f746-disco.c99
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;
+}