1 files changed, 133 insertions, 0 deletions
diff --git a/bsps/mips/malta/start/simple_access.c b/bsps/mips/malta/start/simple_access.c
new file mode 100644
index 0000000000..cd15484b1c
--- /dev/null
+++ b/bsps/mips/malta/start/simple_access.c
@@ -0,0 +1,133 @@
+/**
+ *  @file
+ *
+ *  This file contains the code to do simple memory and io accesses.
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2012.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems.h>
+#include <bsp.h>
+
+#include <bsp/pci.h>
+#include <bsp/irq.h>
+#include <rtems/bspIo.h>
+#include <rtems/endian.h>
+// #define DEBUG_ACCESSES   1
+
+#ifdef DEBUG_ACCESSES
+  #define JPRINTK(fmt, ...) printk("%s: " fmt, __FUNCTION__, ##__VA_ARGS__)
+#else
+  #define JPRINTK(fmt, ...)
+#endif
+
+/*
+ *  *  Simple accesses
+ *   */
+void simple_out_32(uint32_t base, uint32_t addr, uint32_t val)
+{
+  volatile uint32_t *ptr;
+
+  ptr = (volatile uint32_t *) (base + addr);
+  *ptr = val;
+
+  JPRINTK( "%p data: 0x%x\n", ptr, val);
+}
+
+void simple_out_le32(uint32_t base, uint32_t addr, uint32_t val)
+{
+  volatile uint32_t *ptr;
+  uint32_t           data = 0;
+
+  ptr = (volatile uint32_t *) (base + addr);
+  rtems_uint32_to_little_endian( val, (uint8_t *) &data);
+  *ptr = data;
+
+  JPRINTK( "%p data: 0x%x\n", ptr, data);
+}
+
+uint8_t simple_in_8( uint32_t base, uint32_t addr ) {
+  volatile uint8_t *ptr;
+  uint8_t           val;
+
+  ptr = (volatile uint8_t *) (base + addr);
+  val = *ptr;
+  JPRINTK( "0x%x data: 0x%x\n", ptr, val);
+
+  return val;
+}
+
+int16_t simple_in_le16( uint32_t base, uint32_t addr ) {
+  volatile uint16_t *ptr;
+  uint16_t           val;
+  uint16_t           rval;
+
+  ptr = (volatile uint16_t *) (base + addr);
+  val = *ptr;
+  rval = rtems_uint16_from_little_endian( (uint8_t *) &val);
+  JPRINTK( "0x%x data: 0x%x raw: 0x%x\n", ptr, rval, val);
+  return rval;
+}
+
+int16_t simple_in_16( uint32_t base, uint32_t addr ) {
+  volatile uint16_t *ptr;
+  uint16_t           val;
+
+  ptr = (volatile uint16_t *) (base + addr);
+  val = *ptr;
+  JPRINTK( "0x%x data: 0x%x raw: 0x%x\n", ptr, val, val);
+  return val;
+}
+
+uint32_t simple_in_le32( uint32_t base, uint32_t addr ) {
+  volatile uint32_t *ptr;
+  uint32_t           val;
+  uint32_t           rval;
+
+  ptr = (volatile uint32_t *) (base + addr);
+  val = *ptr;
+  rval = rtems_uint32_from_little_endian( (uint8_t *) &val);
+  JPRINTK( "0x%x data: 0x%x raw: 0x%x\n", ptr, rval, val);
+  return rval;
+}
+
+uint32_t simple_in_32( uint32_t base, uint32_t addr ) {
+  volatile uint32_t *ptr;
+  uint32_t           val;
+
+  ptr = (volatile uint32_t *) (base + addr);
+  val = *ptr;
+  JPRINTK( "0x%x data: 0x%x raw: 0x%x\n", ptr, val, val);
+  return val;
+}
+
+void simple_out_8( uint32_t base, uint32_t addr, uint8_t val ) {
+  volatile uint8_t *ptr;
+
+  ptr = (volatile uint8_t *) (base | addr);
+  JPRINTK( "0x%x data: 0x%x\n", ptr, val);
+  *ptr = val;
+}
+
+void simple_out_le16( uint32_t base, uint32_t addr, uint16_t val ) {
+  volatile uint16_t *ptr;
+  uint16_t           data;
+  ptr = (volatile uint16_t *) (base + addr);
+  rtems_uint16_to_little_endian( val, (uint8_t *) &data);
+  *ptr = data;
+  JPRINTK( "0x%x data: 0x%x\n", ptr, data);
+}
+
+void simple_out_16( uint32_t base, uint32_t addr, uint16_t val ) {
+  volatile uint16_t *ptr;
+  ptr = (volatile uint16_t *) (base + addr);
+  *ptr = val;
+  JPRINTK( "0x%x data: 0x%x\n", ptr, val);
+}