ColdFire: Relocate vector table - mcf5445x
Newer ColdFire processors family boot from address 0 instead of
0xFFnn_nnnn. When the boot flash base chip select is set at new
location instead of 0, an un-predictable error will occur if
there is an vector being trigger and refer it to an invalid
address or the vector table handler is not existed at address
0.
Signed-off-by: TsiChung Liew <tsicliew@gmail.com>
diff --git a/cpu/mcf5445x/cpu_init.c b/cpu/mcf5445x/cpu_init.c
index 00e0ca6..8d51d35 100644
--- a/cpu/mcf5445x/cpu_init.c
+++ b/cpu/mcf5445x/cpu_init.c
@@ -28,6 +28,7 @@
#include <common.h>
#include <watchdog.h>
#include <asm/immap.h>
+#include <asm/processor.h>
#include <asm/rtc.h>
#if defined(CONFIG_CMD_NET)
@@ -105,6 +106,14 @@
fbcs->csmr5 = CONFIG_SYS_CS5_MASK;
#endif
+ /*
+ * now the flash base address is no longer at 0 (Newer ColdFire family
+ * boot at address 0 instead of 0xFFnn_nnnn). The vector table must
+ * also move to the new location.
+ */
+ if (CONFIG_SYS_CS0_BASE != 0)
+ setvbr(CONFIG_SYS_CS0_BASE);
+
#ifdef CONFIG_FSL_I2C
gpio->par_feci2c = GPIO_PAR_FECI2C_SCL_SCL | GPIO_PAR_FECI2C_SDA_SDA;
#endif