ppc4xx: Clean up 440 exceptions handling

[karo-tx-uboot.git] / include / ppc405.h

diff --git a/include/ppc405.h b/include/ppc405.h
index 71ad12e5159b709ebefd1ba61ff27650237273c0..6be2a50db758baa441e5e44df4049f43f9b86adf 100644 (file)
--- a/include/ppc405.h
+++ b/include/ppc405.h
@@ -27,6 +27,15 @@
 /*--------------------------------------------------------------------- */
        #define  srr2  0x3de      /* save/restore register 2 */
        #define  srr3  0x3df      /* save/restore register 3 */
+
+       /*
+        * 405 does not really have CSRR0/1 but SRR2/3 are used during critical
+        * exception for the exact same purposes - let's alias them and have a
+        * common handling in crit_return() and CRIT_EXCEPTION
+        */
+       #define  csrr0 srr2
+       #define  csrr1 srr3
+
        #define  dbsr  0x3f0      /* debug status register */
        #define  dbcr0 0x3f2      /* debug control register 0 */
        #define  dbcr1 0x3bd      /* debug control register 1 */