bsps: Move showbats.c to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

1 files changed, 51 insertions, 0 deletions

diff --git a/bsps/powerpc/shared/start/showbats.c b/bsps/powerpc/shared/start/showbats.c
new file mode 100644
index 0000000000..3978b53152
--- /dev/null
+++ b/bsps/powerpc/shared/start/showbats.c
@@ -0,0 +1,51 @@
+/*
+ *  Display the PowerPC BAT Registers
+ *
+ *  COPYRIGHT (c) 1989-2007.
+ *  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 <inttypes.h>
+#include <string.h>
+
+#include <bsp.h>
+#include <rtems/bspIo.h>
+#include <libcpu/spr.h>
+#include <libcpu/powerpc-utility.h>
+
+void printBAT( int bat, uint32_t upper, uint32_t lower )
+{
+  uint32_t lowest_addr;
+  uint32_t size;
+
+  printk("BAT%d raw(upper=0x%08" PRIx32 ", lower=0x%08" PRIx32 ") ", bat, upper, lower );
+
+  lowest_addr = (upper & 0xFFFE0000);
+  size = (((upper & 0x00001FFC) >> 2) + 1) * (128 * 1024);
+  printk(" range(0x%08" PRIx32 ", 0x%08" PRIx32 ") %s%s %s%s%s%s %s\n",
+    lowest_addr,
+    lowest_addr + (size - 1),
+    (upper & 0x01) ? "P" : "p",
+    (upper & 0x02) ? "S" : "s",
+    (lower & 0x08) ? "G" : "g",
+    (lower & 0x10) ? "M" : "m",
+    (lower & 0x20) ? "I" : "i",
+    (lower & 0x40) ? "W" : "w",
+    (lower & 0x01) ? "Read Only" :
+      ((lower & 0x02) ? "Read/Write" : "No Access")
+  );
+}
+
+void ShowBATS(void){
+  uint32_t lower;
+  uint32_t upper;
+
+  __MFSPR(536, upper); __MFSPR(537, lower); printBAT( 0, upper, lower );
+  __MFSPR(538, upper); __MFSPR(539, lower); printBAT( 1, upper, lower );
+  __MFSPR(540, upper); __MFSPR(541, lower); printBAT( 2, upper, lower );
+  __MFSPR(542, upper); __MFSPR(543, lower); printBAT( 3, upper, lower );
+}