[U-Boot] [PATCH 1/2] imx: imx6sx-sdb: Enable DM QSPI driver

Jagan Teki jagan at amarulasolutions.com
Wed Jun 27 10:27:59 UTC 2018


On Wed, Jun 27, 2018 at 3:29 PM, Fabio Estevam <festevam at gmail.com> wrote:
> Hi Ye Li,
>
> On Wed, Jun 27, 2018 at 3:48 AM, Ye Li <ye.li at nxp.com> wrote:
>> To support DM QSPI driver
>>  - Add spi0 and spi1 alias for qspi1 and qspi2.
>>  - Modify n25q256a at 0 and n25q256a at 1 compatible string to "spi-flash"
>>  - Enable DM SPI/QSPI relavent configurations
>>  - Remove iomux settings of qspi2 in board codes which is not needed
>>    for DM driver.
>>  - Add sf default settings. So running "sf probe" can detect the flash
>>
>> Signed-off-by: Ye Li <ye.li at nxp.com>
>> ---
>>  arch/arm/dts/imx6sx-sdb.dts                 |  4 ++--
>>  arch/arm/dts/imx6sx.dtsi                    | 12 +++++++-----
>>  board/freescale/mx6sxsabresd/mx6sxsabresd.c | 25 -------------------------
>>  configs/mx6sxsabresd_defconfig              |  7 +++++++
>>  include/configs/mx6sxsabresd.h              |  4 ++++
>>  5 files changed, 20 insertions(+), 32 deletions(-)
>>
>> diff --git a/arch/arm/dts/imx6sx-sdb.dts b/arch/arm/dts/imx6sx-sdb.dts
>> index 6dd9beb..a04b00d 100644
>> --- a/arch/arm/dts/imx6sx-sdb.dts
>> +++ b/arch/arm/dts/imx6sx-sdb.dts
>> @@ -115,7 +115,7 @@
>>         flash0: n25q256a at 0 {
>>                 #address-cells = <1>;
>>                 #size-cells = <1>;
>> -               compatible = "micron,n25q256a", "jedec,spi-nor";
>> +               compatible = "spi-flash";
>
> I don't see "spi-flash" compatible documented in the kernel bindings.
>
> Please clarify why we are deviating from Linux here.

We still not sync with Linux on this area, better to append or add
-u-boot.dtsi for this change. will remove once synced.


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