[U-Boot] [v3 patch 2/4] SMDK6400: Fix some label undefined in build error

[seedshope <bocui107@gmail.com>]

On 01/14/2011 02:07 AM, Albert ARIBAUD wrote:
> Le 13/01/2011 14:36, seedshope a ?crit :
>> Modify Makefile for cpu_init.c and Start.s use some label,this defined
>> u-boot.lds of arch/arm/cpu/arm1176. But SMDK6400 use the link script
>> board/samsung/smdk6400/u-boot-nand.lds. So add some label form 
>> u-boot.lds
>> to u-boot-nand.lds
>>
>> Signed-off-by: seedshope<bocui107@gmail.com>
>>
>> diff --git a/arch/arm/cpu/arm1176/s3c64xx/Makefile 
>> b/arch/arm/cpu/arm1176/s3c64xx/Makefile
>> index 0785b19..f4b9574 100644
>> --- a/arch/arm/cpu/arm1176/s3c64xx/Makefile
>> +++ b/arch/arm/cpu/arm1176/s3c64xx/Makefile
>> @@ -30,12 +30,15 @@ LIB    = $(obj)lib$(SOC).o
>>
>>   SOBJS    = reset.o
>>
>> -COBJS-$(CONFIG_S3C6400)    += cpu_init.o speed.o
>> +COBJS-$(CONFIG_S3C6400)    += speed.o
>>   COBJS-y    += timer.o
>>
>> +CPUINIT    = cpu_init.o
>> +
>>   OBJS    := $(addprefix $(obj),$(SOBJS) $(COBJS-y))
>> +CPUINIT := $(addprefix $(obj),$(CPUINIT))
>>
>> -all:    $(obj).depend $(START) $(LIB)
>> +all:    $(obj).depend $(START) $(LIB) $(CPUINIT)
>>
>>   $(LIB):    $(OBJS)
>>       $(call cmd_link_o_target, $(OBJS))
>
> Not sure I get what's the problem and how exactly this changes solves 
> it. Can you detail this particular issue?
The issue is mem_ctrl_asm_init redefine in 
arch/arm/cpu/arm1176/s3c64xx/cpu_init.s.

At first, the link script file include cpu_init.s in 
board/samsung/smd6400/u-boot-nand.s, If I separate the cpu_init.o from 
COBJS-$(CONFIG_S3C6400), I guess cmd_link_o_target will deal with 
cpu_init.o. So the link script will double link the cpu_init file.

I have two method to solve it.
first: see the patch
second: Modify the link script

But I feel, the first method is safe.

I asked a question. I will RR on next, The patch1 and patch3 have 
already ok,  Do I only send patch2 and patch4?
>
> Amicalement,