[U-Boot] [PATCH] m68k: mcf5445x: allow CS0 to be undefined

[Angelo Dureghello]

On some boards, CONFIG_SYS_CS0_BASE can be undefined, since
CS0 is not connected to any signal.

Signed-off-by: Angelo Dureghello <angelo at sysam.it>
---
 arch/m68k/cpu/mcf5445x/cpu_init.c | 2 ++
 arch/m68k/cpu/mcf5445x/start.S    | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/arch/m68k/cpu/mcf5445x/cpu_init.c b/arch/m68k/cpu/mcf5445x/cpu_init.c
index b4a8eefa94..5d2b116be1 100644
--- a/arch/m68k/cpu/mcf5445x/cpu_init.c
+++ b/arch/m68k/cpu/mcf5445x/cpu_init.c
@@ -205,6 +205,7 @@ void cpu_init_f(void)
 	/* 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 @@ void cpu_init_f(void)
 	 */
 	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 0487d84a2f..123bbd80b8 100644
--- a/arch/m68k/cpu/mcf5445x/start.S
+++ b/arch/m68k/cpu/mcf5445x/start.S
@@ -159,6 +159,7 @@ asm_dram_init:
 	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
 	clr.l	%sp at -
 
+#ifdef CONFIG_SYS_CS0_BASE
 	/* Must disable global address */
 	move.l	#0xFC008000, %a1
 	move.l	#(CONFIG_SYS_CS0_BASE), (%a1)
@@ -166,6 +167,7 @@ asm_dram_init:
 	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
@@ -507,6 +509,7 @@ asm_nand_init:
 	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)
@@ -514,6 +517,7 @@ asm_nand_init:
 	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
-- 
2.13.2