* S3C2416, S3C2443 HS-SPI driver?
@ 2011-04-28 20:05 Heiko Stübner
2011-04-29 3:45 ` Jassi Brar
0 siblings, 1 reply; 2+ messages in thread
From: Heiko Stübner @ 2011-04-28 20:05 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
does a driver for spi on s3c2416/s3c2443 SoCs exist somewhere? The one for the
other s3c24XX SoCs seems to be different.
I did a comparison of the spi-parts of s3c2416 and s3c6400 manuals and they
seem very much alike in their registers and working descriptions.
The only real differences I found are bit 6 of CH_CFG (High_speed_en) which
only exists on 2416/2443 and the max values of RxTrigger and TxTrigger are
greater on 2416 than on 6400 (63 vs 40).
So question for the samsung experts, could the s3c64xx spi-driver be a valid
starting point for me?
Thanks
Heiko
^ permalink raw reply [flat|nested] 2+ messages in thread
* S3C2416, S3C2443 HS-SPI driver?
2011-04-28 20:05 S3C2416, S3C2443 HS-SPI driver? Heiko Stübner
@ 2011-04-29 3:45 ` Jassi Brar
0 siblings, 0 replies; 2+ messages in thread
From: Jassi Brar @ 2011-04-29 3:45 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Apr 29, 2011 at 1:35 AM, Heiko St?bner <heiko@sntech.de> wrote:
> Hi,
>
> does a driver for spi on s3c2416/s3c2443 SoCs exist somewhere? The one for the
> other s3c24XX SoCs seems to be different.
>
> I did a comparison of the spi-parts of s3c2416 and s3c6400 manuals and they
> seem very much alike in their registers and working descriptions.
>
The spi_s3c64xx.c has designed to accomodate such slight variations in
controllers.
For the same 'template' controller, the driver can make it work if
passed appropriate
configuration parameters via 'struct s3c64xx_spi_info'
^ permalink raw reply [flat|nested] 2+ messages in thread
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