[bsp/n32g452xx] add drv_spi.c (#5640)

bsp/n32g452xx/Libraries/rt_drivers/drv_spi.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author            Notes
+ * 2022-03-06     BalanceTWK        first version
+ */
+
+#ifndef __SPI_CONFIG_H__
+#define __SPI_CONFIG_H__
+
+#include <rtthread.h>
+#include <rtdevice.h>
+#include <n32g45x.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct n32_hw_spi_cs
+{
+    GPIO_Module* module;
+    uint32_t pin;
+};
+
+rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, GPIO_Module *cs_gpiox, uint32_t cs_gpio_pin);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __SPI_CONFIG_H__ */