summaryrefslogtreecommitdiff
path: root/include/configs
diff options
context:
space:
mode:
Diffstat (limited to 'include/configs')
-rw-r--r--include/configs/o2dnt.h25
1 files changed, 23 insertions, 2 deletions
diff --git a/include/configs/o2dnt.h b/include/configs/o2dnt.h
index 325f654..981651a 100644
--- a/include/configs/o2dnt.h
+++ b/include/configs/o2dnt.h
@@ -137,8 +137,20 @@
/*
* IPB Bus clocking configuration.
*/
-#undef CFG_IPBSPEED_133 /* define for 133MHz speed */
+#define CFG_IPBSPEED_133 /* define for 133MHz speed */
+
+#if defined(CFG_IPBSPEED_133)
+/*
+ * PCI Bus clocking configuration
+ *
+ * Actually a PCI Clock of 66 MHz is only set (in cpu_init.c) if
+ * CFG_IPBSPEED_133 is defined. This is because a PCI Clock of 66 MHz yet hasn't
+ * been tested with a IPB Bus Clock of 66 MHz.
+ */
+#define CFG_PCISPEED_66 /* define for 66MHz speed */
+#endif
#endif
+
/*
* I2C configuration
*/
@@ -263,7 +275,16 @@
#define CFG_BOOTCS_START CFG_FLASH_BASE
#define CFG_BOOTCS_SIZE CFG_FLASH_SIZE
-#define CFG_BOOTCS_CFG 0x00047801
+
+#ifdef CFG_PCISPEED_66
+/*
+ * For 66 MHz PCI clock additional Wait State is needed for CS0 (flash).
+ */
+#define CFG_BOOTCS_CFG 0x00057801 /* for pci_clk = 66 MHz */
+#else
+#define CFG_BOOTCS_CFG 0x00047801 /* for pci_clk = 33 MHz */
+#endif
+
#define CFG_CS0_START CFG_FLASH_BASE
#define CFG_CS0_SIZE CFG_FLASH_SIZE