CVS: blob/src/blob start.S,1.5,1.6

[Stefan E. <se...@us...>]

Update of /cvsroot/blob/blob/src/blob
In directory usw-pr-cvs1:/tmp/cvs-serv30276

Modified Files:
	start.S 
Log Message:
- handle PSSR register (hplefully) correctly now. Clear DH and PH
  bits when sleep wakeup is detected.


Index: start.S
===================================================================
RCS file: /cvsroot/blob/blob/src/blob/start.S,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -d -r1.5 -r1.6
--- start.S	2001/11/04 23:18:05	1.5
+++ start.S	2001/11/15 11:56:20	1.6
@@ -64,6 +64,7 @@
 #define ICMR    0x04
 	
 PWR_BASE:	.word	0x90020000
+#define PSSR	0x04
 #define PSPR	0x08
 #define PPCR	0x14
 	
@@ -110,6 +111,15 @@
 	/* yes, a wake-up. clear RCSR by writing a 1 (see 9.6.2.1 from [1]) */
 	mov	r1, #0x08
 	str	r1, [r0, #RCSR]	;
+
+	/* handle Power Manager Sleep Status Register (PSSR)
+	 * see 9.5.7.5 from [1]*/
+	ldr r1, [r0, #PSSR]
+	/* clear DH bit, brings out DRAM from self-refresh */
+	orr r1, r1, #0x08
+	/* clear PH bit, bring periperal pins out from sleep state */
+	orr r1, r1, #0x10
+	str r1, [r0, #PSSR]
 	
 	/* get the value from the PSPR and jump to it */
 	ldr	r0, PWR_BASE