From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Chou <thomas@wytron.com.tw>
Date: Thu, 12 Nov 2015 16:28:38 +0800
Subject: [U-Boot] [PATCH v2] Fix board init code to use a valid C
 runtime environment
In-Reply-To: <20151112081703.66022f2d@lilith>
References: <1447180247-29704-1-git-send-email-albert.u.boot@aribaud.net>
 <56442AC0.2030306@wytron.com.tw> <20151112081703.66022f2d@lilith>
Message-ID: <56444DB6.3020108@wytron.com.tw>
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To: u-boot@lists.denx.de

Hi Albert,

On 2015?11?12? 15:17, Albert ARIBAUD wrote:
>> ------------------------------------------------------------------------
>> diff --git a/common/init/board_init.c b/common/init/board_init.c
>> index 8839a4a..703e6d8 100644
>> --- a/common/init/board_init.c
>> +++ b/common/init/board_init.c
>> @@ -46,6 +46,7 @@ void board_init_f_gd(struct global_data *gd_ptr)
>>    	for (ptr = (int *)gd_ptr; ptr < (int *)(gd_ptr + 1); )
>>    		*ptr++ = 0;
>>    #endif
>> +	arch_setup_gd(gd_ptr);
>
> Correct -- in ARM (Thumb-1 at least) we cannot use arch_setup_gd() so
> we set GD (in r9) from within arch/arm/lib/crt0.S, but for NIOS2 it
> might (and apparently does) work. Where is GD stored in NIOS2?
>

It is a register, r26 "gp".

I have another question. Will it be simpler to have two calls instead of 
four?

1. get size of gd plus malloc.

2. init gd and malloc.

Best regards,
Thomas