Update for SC520 board.
Patch by David Updegraff, 02 Dec 2005
diff --git a/cpu/i386/sc520.c b/cpu/i386/sc520.c
index c83f0bb..1c4370b 100644
--- a/cpu/i386/sc520.c
+++ b/cpu/i386/sc520.c
@@ -31,7 +31,9 @@
#include <common.h>
#include <config.h>
#include <pci.h>
+#ifdef CONFIG_SC520_SSI
#include <ssi.h>
+#endif
#include <asm/io.h>
#include <asm/pci.h>
#include <asm/ic/sc520.h>
@@ -143,7 +145,15 @@
u32 dram_present=0;
u32 dram_ctrl;
-
+#ifdef CFG_SDRAM_DRCTMCTL
+ /* these memory control registers are set up in the assember part,
+ * in sc520_asm.S, during 'mem_init'. If we muck with them here,
+ * after we are running a stack in RAM, we have troubles. Besides,
+ * these refresh and delay values are better ? simply specified
+ * outright in the include/configs/{cfg} file since the HW designer
+ * simply dictates it.
+ */
+#else
int val;
int cas_precharge_delay = CFG_SDRAM_PRECHARGE_DELAY;
@@ -162,6 +172,7 @@
} else {
val = 3; /* 62.4us */
}
+
write_mmcr_byte(SC520_DRCCTL, (read_mmcr_byte(SC520_DRCCTL) & 0xcf) | (val<<4));
val = read_mmcr_byte(SC520_DRCTMCTL);
@@ -181,13 +192,12 @@
val |= 1;
}
write_mmcr_byte(SC520_DRCTMCTL, val);
-
+#endif
/* We read-back the configuration of the dram
* controller that the assembly code wrote */
dram_ctrl = read_mmcr_long(SC520_DRCBENDADR);
-
bd->bi_dram[0].start = 0;
if (dram_ctrl & 0x80) {
/* bank 0 enabled */
@@ -274,7 +284,7 @@
{
int i;
-# if 0
+# if 1
printf("set_irq(): map INT%c to IRQ%d\n", pci_pin + 'A', irq);
#endif
if (irq < 0 || irq > 15) {