Re: [PATCH] drm/ast: Fix incorrect register check for DRAM width

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 02/26/2016 03:29 PM, Timothy Pearson wrote:
> During DRAM initialization on certain ASpeed devices, an incorrect
> bit (bit 10) was checked in the "SDRAM Bus Width Status" register
> to determine DRAM width.
> 
> Query bit 6 instead in accordance with the Aspeed AST2050 datasheet v1.05.
> 
> Signed-off-by: Timothy Pearson <tpearson@xxxxxxxxxxxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/ast/ast_main.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
> index 9759009..b1480ac 100644
> --- a/drivers/gpu/drm/ast/ast_main.c
> +++ b/drivers/gpu/drm/ast/ast_main.c
> @@ -227,7 +227,7 @@ static int ast_get_dram_info(struct drm_device *dev)
>  	} while (ast_read32(ast, 0x10000) != 0x01);
>  	data = ast_read32(ast, 0x10004);
> 
> -	if (data & 0x400)
> +	if (data & 0x40)
>  		ast->dram_bus_width = 16;
>  	else
>  		ast->dram_bus_width = 32;

Just wanted to give this a bump since I have not received any feedback
on it.

Thanks!

- -- 
Timothy Pearson
Raptor Engineering
+1 (415) 727-8645 (direct line)
+1 (512) 690-0200 (switchboard)
http://www.raptorengineeringinc.com
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iQEcBAEBAgAGBQJW1eZsAAoJEK+E3vEXDOFbusEH/2HXEJ4MfTsV5FRmXQpqv4rh
iqGbd/whbOl9HAwWwz1DgfDIoqjBvBUlrq4C/UEmkFIVo5cqZQQsUIHejsz/GEIx
2mpf1pTIaNnW8oK6w8QX2wxFiV4XOUallOHh+OPmUTZQFpDiJH7MgqWhZ7HNEsRi
lyjYILfPw5Q1cRHKxCn+IPGgStPDr6ds5EbAlNNZKTgdRuUoPLW3LLAyZ6Gtjkwr
FVSe4uIiLC1/HNlrhryFvsAPA6N5hUqFDxAZ7pLFKoRLJpteJnhr5tBJLnwScZlN
6zYZRmDieHHIomFK462SGo8lhyxc8bnbJkYuEKvNvOzdI7B4rriCUMWpIgw1ISg=
=JWPN
-----END PGP SIGNATURE-----
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel




[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux