freertos: release the generic version source code

freertos runs on the second core (small one) of the CPU

freertos/cvitek/common/include/cv1835/linux/ioport.h

@@ -0,0 +1,42 @@
+/*
+ * ioport.h Definitions of routines for detecting, reserving and
+ *      allocating system resources.
+ *
+ * Authors: Linus Torvalds
+ */
+
+#ifndef _LINUX_IOPORT_H
+#define _LINUX_IOPORT_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+/*
+ * Resources are tree-like, allowing
+ * nesting etc..
+ */
+struct resource {
+    resource_size_t start;
+    resource_size_t end;
+    const char *name;
+    //const char name[32];
+    unsigned long flags;
+//    unsigned long desc;
+//    struct resource *parent, *sibling, *child;
+};
+
+//#define IORESOURCE_BITS     0x000000ff  /* Bus-specific bits */
+
+#define IORESOURCE_TYPE_BITS    0x00001f00  /* Resource type */
+//#define IORESOURCE_IO       0x00000100  /* PCI/ISA I/O ports */
+#define IORESOURCE_MEM      0x00000200
+//#define IORESOURCE_REG      0x00000300  /* Register offsets */
+#define IORESOURCE_IRQ      0x00000400
+//#define IORESOURCE_DMA      0x00000800
+//#define IORESOURCE_BUS      0x00001000
+
+static inline unsigned long resource_type(const struct resource *res)
+{
+    return res->flags & IORESOURCE_TYPE_BITS;
+}
+
+#endif // end of _LINUX_IOPORT_H