[U-Boot] [PATCH] net: dm9000x: use standard I/O accessors

[Thomas Weber]

On 07.05.2010 15:37, Thomas Weber wrote:
> On 04/26/10 04:51, Ben Warren wrote:
>   
>> Mike,
>>
>> ApplOn 4/14/2010 1:29 PM, Mike Frysinger wrote:
>>     
>>> The current dm9000x driver accesses its memory mapped registers directly
>>> instead of using the standard I/O accessors.  This can cause problems on
>>> Blackfin systems as the accesses can get out of order.  So convert the
>>> direct volatile dereferences to use the normal in/out macros.
>>>
>>> Signed-off-by: Mike Frysinger<vapier at gentoo.org>
>>> ---
>>>   drivers/net/dm9000x.c |   12 ++++++------
>>>   1 files changed, 6 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/drivers/net/dm9000x.c b/drivers/net/dm9000x.c
>>> index a7fef56..f121286 100644
>>> --- a/drivers/net/dm9000x.c
>>> +++ b/drivers/net/dm9000x.c
>>> @@ -117,12 +117,12 @@ static void DM9000_iow(int reg, u8 value);
>>>
>>>   /* DM9000 network board routine ---------------------------- */
>>>
>>> -#define DM9000_outb(d,r) ( *(volatile u8 *)r = d )
>>> -#define DM9000_outw(d,r) ( *(volatile u16 *)r = d )
>>> -#define DM9000_outl(d,r) ( *(volatile u32 *)r = d )
>>> -#define DM9000_inb(r) (*(volatile u8 *)r)
>>> -#define DM9000_inw(r) (*(volatile u16 *)r)
>>> -#define DM9000_inl(r) (*(volatile u32 *)r)
>>> +#define DM9000_outb(d,r) outb(d, r)
>>> +#define DM9000_outw(d,r) outw(d, r)
>>> +#define DM9000_outl(d,r) outl(d, r)
>>> +#define DM9000_inb(r) inb(r)
>>> +#define DM9000_inw(r) inw(r)
>>> +#define DM9000_inl(r) inl(r)
>>>
>>>   #ifdef CONFIG_DM9000_DEBUG
>>>   static void
>>>    
>>>       
>> Applied to net repo.
>>
>> thanks,
>> Ben
>> _______________________________________________
>> U-Boot mailing list
>> U-Boot at lists.denx.de
>> http://lists.denx.de/mailman/listinfo/u-boot
>>     
> Hi,
>
> this patch breaks compilation for devkit8000 (ARM, Cortex-A8)
>
> dm9000x.c: In function 'dm9000_outblk_8bit':
> dm9000x.c:148: warning: implicit declaration of function 'outb'
> dm9000x.c: In function 'dm9000_outblk_16bit':
> dm9000x.c:157: warning: implicit declaration of function 'outw'
> dm9000x.c: In function 'dm9000_outblk_32bit':
> dm9000x.c:165: warning: implicit declaration of function 'outl'
> dm9000x.c: In function 'dm9000_inblk_8bit':
> dm9000x.c:172: warning: implicit declaration of function 'inb'
> dm9000x.c: In function 'dm9000_inblk_16bit':
> dm9000x.c:181: warning: implicit declaration of function 'inw'
> dm9000x.c: In function 'dm9000_inblk_32bit':
> dm9000x.c:189: warning: implicit declaration of function 'inl'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_inblk_8bit':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:172: undefined
> reference to `inb'
> drivers/net/libnet.a(dm9000x.o): In function `DM9000_ior':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:566: undefined
> reference to `outb'
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:567: undefined
> reference to `inb'
> drivers/net/libnet.a(dm9000x.o): In function `DM9000_iow':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:576: undefined
> reference to `outb'
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:577: undefined
> reference to `outb'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_rx_status_8bit':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:213: undefined
> reference to `outb'
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:216: undefined
> reference to `inb'
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:216: undefined
> reference to `inb'
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:219: undefined
> reference to `inb'
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:219: undefined
> reference to `inb'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_outblk_8bit':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:148: undefined
> reference to `outb'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_rx':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:476: undefined
> reference to `inb'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_send':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:412: undefined
> reference to `outb'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_rx_status_32bit':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:196: undefined
> reference to `outb'
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:198: undefined
> reference to `inl'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_inblk_32bit':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:189: undefined
> reference to `inl'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_outblk_32bit':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:165: undefined
> reference to `outl'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_rx_status_16bit':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:205: undefined
> reference to `outb'
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:207: undefined
> reference to `inw'
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:208: undefined
> reference to `inw'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_inblk_16bit':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:181: undefined
> reference to `inw'
> drivers/net/libnet.a(dm9000x.o): In function `dm9000_outblk_16bit':
> /home/tweber/work/git/u-boot/drivers/net/dm9000x.c:157: undefined
> reference to `outw'
> /home/tweber/arm-2009q3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.1/armv4t/libgcc.a(bpabi.o):(.ARM.exidx+0x0):
> undefined reference to `__aeabi_unwind_cpp_pr0'
> /home/tweber/arm-2009q3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.1/armv4t/libgcc.a(_divdi3.o):(.ARM.exidx+0x0):
> undefined reference to `__aeabi_unwind_cpp_pr0'
> /home/tweber/arm-2009q3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.1/armv4t/libgcc.a(_udivdi3.o):(.ARM.exidx+0x0):
> undefined reference to `__aeabi_unwind_cpp_pr0'
> make: *** [u-boot] Error 1
>
> I think the arch/arm/include/asm/io.h needs some rework with the __io
> definition. Is it the right way?
>
> Thomas
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>   
Hi,

#define __io

in devkit8000.h fixes the upper part of the error messages.

/home/thomas/toolchains/arm-2009q3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.1/armv4t/libgcc.a(bpabi.o):(.ARM.exidx+0x0):
undefined reference to `__aeabi_unwind_cpp_pr0'
/home/thomas/toolchains/arm-2009q3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.1/armv4t/libgcc.a(_divdi3.o):(.ARM.exidx+0x0):
undefined reference to `__aeabi_unwind_cpp_pr0'
/home/thomas/toolchains/arm-2009q3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.1/armv4t/libgcc.a(_udivdi3.o):(.ARM.exidx+0x0):
undefined reference to `__aeabi_unwind_cpp_pr0'
make: *** [u-boot] Error 1

is still there.

Thomas