On 24 May 2012 13:13, Kukjin Kim <kgene.kim@xxxxxxxxxxx> wrote:
> Thomas Abraham wrote:
>>
>> Add device nodes for the three instances of spi controllers in Exynos4
>> platforms. Enable instance spi 2 for smdkv310 board and disable all
>> spi instances for origen board.
>>
>> Signed-off-by: Thomas Abraham <thomas.abraham@xxxxxxxxxx>
>> ---
>> arch/arm/boot/dts/exynos4210-origen.dts | 12 ++++++++
>> arch/arm/boot/dts/exynos4210-smdkv310.dts | 44
>> +++++++++++++++++++++++++++++
>> arch/arm/boot/dts/exynos4210.dtsi | 30 +++++++++++++++++++
>> 3 files changed, 86 insertions(+), 0 deletions(-)
>
> [...]
>
>> + aliases {
>> + spi0 = &spi_0;
>> + spi1 = &spi_1;
>> + spi2 = &spi_2;
>> + };
>> +
>
> Do we need above aliases?
spi0 controller has different fifo sizes than spi1 and spi2. So we
need aliases to identify the port number and know the fifo sizes.
>
> [...]
>
>>
>> + spi_2: spi@13940000 {
>> + gpios = <&gpc1 1 5 3 0>,
>> + <&gpc1 3 5 3 0>,
>> + <&gpc1 4 5 3 0>;
>> +
>> + w25x80@0 {
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + compatible = "w25x80";
>> + reg = <0>;
>> + spi-max-frequency = <10000>;
>> +
>> + controller-data {
>> + cs-gpio = <&gpc1 2 1 0 3>;
>> + samsung,spi-feedback-delay = <0>;
>> + };
>> +
>> + partition@0 {
>> + label = "U-Boot";
>> + reg = <0x0 0x40000>;
>> + read-only;
>> + };
>> +
>> + partition@40000 {
>> + label = "Kernel";
>> + reg = <0x40000 0xc0000>;
>> + };
>> + };
>> + };
>> +
>
>
> Is there a serial flash(w25x80) is connected via SPI2 on smdkv310?
Yes, smdkv310 has a onboard spi flash connected to SPI2 (w25x80).
Thanks,
Thomas.
>
> [...]
>
> Thanks.
>
> Best regards,
> Kgene.
> --
> Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer,
> SW Solution Development Team, Samsung Electronics Co., Ltd.
>
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
