Add support for new TQM5200 revisions
- Support for TQM5200S (short version without graphic controller)
- Support for modules with 'N' type S29GL128N Spansion flashes
(requires changes to flash layout)
- Support for MPC5200B cpu (mostly support for second SDRAM bank)
diff --git a/board/tqm5200/tqm5200.c b/board/tqm5200/tqm5200.c
index c6309e3..1756e7f 100644
--- a/board/tqm5200/tqm5200.c
+++ b/board/tqm5200/tqm5200.c
@@ -1,11 +1,11 @@
/*
- * (C) Copyright 2003-2004
+ * (C) Copyright 2003-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2004
* Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
*
- * (C) Copyright 2004-2005
+ * (C) Copyright 2004-2006
* Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
*
* See file CREDITS for list of people who contributed to this
@@ -30,6 +30,7 @@
#include <common.h>
#include <mpc5xxx.h>
#include <pci.h>
+#include <asm/processor.h>
#ifdef CONFIG_VIDEO_SM501
#include <sm501.h>
@@ -101,6 +102,8 @@
{
ulong dramsize = 0;
ulong dramsize2 = 0;
+ uint svr, pvr;
+
#ifndef CFG_RAMBOOT
ulong test1, test2;
@@ -190,11 +193,31 @@
} else {
dramsize2 = 0;
}
-
#endif /* CFG_RAMBOOT */
-/* return dramsize + dramsize2; */
+ /*
+ * On MPC5200B we need to set the special configuration delay in the
+ * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM
+ * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190:
+ *
+ * "The SDelay should be written to a value of 0x00000004. It is
+ * required to account for changes caused by normal wafer processing
+ * parameters."
+ */
+ svr = get_svr();
+ pvr = get_pvr();
+ if ((SVR_MJREV(svr) >= 2) &&
+ (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) {
+
+ *(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04;
+ __asm__ volatile ("sync");
+ }
+
+#if defined(CONFIG_TQM5200_B)
+ return dramsize + dramsize2;
+#else
return dramsize;
+#endif /* CONFIG_TQM5200_B */
}
#elif defined(CONFIG_MGT5100)
@@ -255,7 +278,11 @@
return 0;
#endif
#if defined (CONFIG_TQM5200)
+#if defined(CONFIG_TQM5200_B)
+ puts ("Board: TQM5200 or TQM5200S (TQ-Components GmbH)\n");
+#else
puts ("Board: TQM5200 (TQ-Components GmbH)\n");
+#endif /* CONFIG_TQM5200_B */
#endif
#if defined (CONFIG_STK52XX)
puts (" on a STK52XX baseboard\n");