m68k: mcf5445x: allow CS0 to be undefined
On some boards, CONFIG_SYS_CS0_BASE can be undefined, since
CS0 is not connected to any signal.
Signed-off-by: Angelo Dureghello <angelo@sysam.it>
diff --git a/arch/m68k/cpu/mcf5445x/cpu_init.c b/arch/m68k/cpu/mcf5445x/cpu_init.c
index b4a8eef..5d2b116 100644
--- a/arch/m68k/cpu/mcf5445x/cpu_init.c
+++ b/arch/m68k/cpu/mcf5445x/cpu_init.c
@@ -205,6 +205,7 @@
/* FlexBus Chipselect */
init_fbcs();
+#ifdef CONFIG_SYS_CS0_BASE
/*
* 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
@@ -212,6 +213,7 @@
*/
if (CONFIG_SYS_CS0_BASE != 0)
setvbr(CONFIG_SYS_CS0_BASE);
+#endif
icache_enable();
}
diff --git a/arch/m68k/cpu/mcf5445x/start.S b/arch/m68k/cpu/mcf5445x/start.S
index 41d9088..4c09489 100644
--- a/arch/m68k/cpu/mcf5445x/start.S
+++ b/arch/m68k/cpu/mcf5445x/start.S
@@ -159,6 +159,7 @@
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
clr.l %sp@-
+#ifdef CONFIG_SYS_CS0_BASE
/* Must disable global address */
move.l #0xFC008000, %a1
move.l #(CONFIG_SYS_CS0_BASE), (%a1)
@@ -166,6 +167,7 @@
move.l #(CONFIG_SYS_CS0_CTRL), (%a1)
move.l #0xFC008004, %a1
move.l #(CONFIG_SYS_CS0_MASK), (%a1)
+#endif
#endif /* CONFIG_CF_SBF */
#ifdef CONFIG_MCF5441x
@@ -342,6 +344,7 @@
movec %d0, %ACR2
movec %d0, %ACR3
+#ifdef CONFIG_SYS_CS0_BASE
/* Must disable global address */
move.l #0xFC008000, %a1
move.l #(CONFIG_SYS_CS0_BASE), (%a1)
@@ -349,6 +352,7 @@
move.l #(CONFIG_SYS_CS0_CTRL), (%a1)
move.l #0xFC008004, %a1
move.l #(CONFIG_SYS_CS0_MASK), (%a1)
+#endif
/* NAND port configuration */
move.l #0xEC094048, %a1