stm32h7: Add init for sdmmc pins

Update #4372
2021-03-02 16:14:41 +01:00
parent aa9e3c6211
commit 8fd29cfbc5
3 changed files with 91 additions and 0 deletions
--- a/bsps/arm/stm32h7/start/stm32h7-hal-sdmmc.c
+++ b/bsps/arm/stm32h7/start/stm32h7-hal-sdmmc.c
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/*
+ * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stm32h7/hal.h>
+
+static const stm32h7_gpio_config gpiob = {
+  .regs = GPIOB,
+  .config = {
+    .Pin = GPIO_PIN_8 | GPIO_PIN_9,
+    .Mode = GPIO_MODE_AF_PP,
+    .Pull = GPIO_NOPULL,
+    .Speed = GPIO_SPEED_FREQ_VERY_HIGH,
+    .Alternate = GPIO_AF7_SDMMC1
+  }
+};
+
+static const stm32h7_gpio_config gpioc_af12 = {
+  .regs = GPIOC,
+  .config = {
+    .Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12,
+    .Mode = GPIO_MODE_AF_PP,
+    .Pull = GPIO_NOPULL,
+    .Speed = GPIO_SPEED_FREQ_VERY_HIGH,
+    .Alternate = GPIO_AF12_SDMMC1
+  }
+};
+
+static const stm32h7_gpio_config gpioc_af8 = {
+  .regs = GPIOC,
+  .config = {
+    .Pin = GPIO_PIN_6 | GPIO_PIN_7,
+    .Mode = GPIO_MODE_AF_PP,
+    .Pull = GPIO_NOPULL,
+    .Speed = GPIO_SPEED_FREQ_VERY_HIGH,
+    .Alternate = GPIO_AF8_SDMMC1
+  }
+};
+
+static const stm32h7_gpio_config gpiod = {
+  .regs = GPIOD,
+  .config = {
+    .Pin = GPIO_PIN_2,
+    .Mode = GPIO_MODE_AF_PP,
+    .Pull = GPIO_NOPULL,
+    .Speed = GPIO_SPEED_FREQ_VERY_HIGH,
+    .Alternate = GPIO_AF12_SDMMC1
+  }
+};
+
+void
+HAL_SD_MspInit(SD_HandleTypeDef *hsd)
+{
+  stm32h7_clk_enable(STM32H7_MODULE_SDMMC1);
+  stm32h7_gpio_init(&gpiob);
+  stm32h7_gpio_init(&gpioc_af12);
+  stm32h7_gpio_init(&gpioc_af8);
+  stm32h7_gpio_init(&gpiod);
+  __HAL_RCC_SDMMC1_FORCE_RESET();
+  __HAL_RCC_SDMMC1_RELEASE_RESET();
+}