[U-Boot] [PATCH v3] i.mx: i.mx6q: add the initial support for i.mx6q Sabre Lite board

[Dirk Behme]

On 28.12.2011 13:32, Stefano Babic wrote:
> On 26/12/2011 08:34, Dirk Behme wrote:
>> From: Jason Liu<jason.hui at linaro.org>
>>
>> Add the initial support for Freescale i.MX6Q Sabre Lite board
>>
>
> Hi Dirk,
>
>>
>> Index: freescale-u-boot-imx.git/MAINTAINERS
>> ===================================================================
>> --- freescale-u-boot-imx.git.orig/MAINTAINERS
>> +++ freescale-u-boot-imx.git/MAINTAINERS
>> @@ -579,6 +579,7 @@ Jason Liu<r64343 at freescale.com>
>>   	mx53evk         i.MX53
>>   	mx53loco        i.MX53
>>   	mx6qarm2	i.MX6Q
>> +	mx6qsabrelite   i.MX6Q
>
> Can you confirm that Jason is the maintainer of the board ?

Yes, I think so, it shouldn't have changed since v2

http://lists.denx.de/pipermail/u-boot/2011-December/113142.html

Jason?

>> +
>> +#ifdef CONFIG_FSL_ESDHC
>> +struct fsl_esdhc_cfg usdhc_cfg[2] = {
>> +       {USDHC3_BASE_ADDR, 1},
>> +       {USDHC4_BASE_ADDR, 1},
>> +};
>> +
>> +int board_mmc_getcd(u8 *cd, struct mmc *mmc)
>> +{
>> +       struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
>> +
>> +       if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
>> +               gpio_direction_input(192); /*GPIO7_0*/
>> +               *cd = gpio_get_value(192);
>> +       } else {
>> +               gpio_direction_input(38); /*GPIO2_6*/
>> +               *cd = gpio_get_value(38);
>> +       }
>> +
>> +       return 0;
>> +}
>
> I have not an evident comment with this code, but there are pending
> patches to change this behavior:
>
> http://patchwork.ozlabs.org/patch/132398/
>
> The patches already updates other i.MX boards. If, as I presume, this
> patches goes soon in mainline, board_mmc_getcd() must be updated to be
> adjusted for the new API. I will wait a while before merging your patch
> to check the status of the mmc patchset.

Ok, good to know. Thanks!

Let us know if you want us to update this patch against

http://patchwork.ozlabs.org/patch/132398/

>> @@ -0,0 +1,67 @@
>> +U-Boot for the Freescale i.MX6q SabreLite board
>> +
>> +This file contains information for the port of U-Boot to the Freescale
>> +i.MX6q SabreLite board.
>> +
>> +1. Boot source, boot from SD card
>> +---------------------------------
>> +
>> +The recent mainline U-Boot for the Freescale i.MX6q SabreLite board supports
>> +boot from SD card only. However, by default, the early version of SabreLite
>> +boards boot from the SPI NOR flash. These boards need to be reflashed with
>> +a small SD card loader to support boot from SD card. This small SD card loader
>> +will be flashed into the SPI NOR. The board will still boot from SPI NOR, but
>> +the loader will in turn request the BootROM to load the U-Boot from SD card.
>> +At the moment of writing, please check with Freescale on the availablity of
>> +this small SD loader binary.
>
> Ok, fine. For my information only, is there a revision version to be
> checked if the board needs this small loader ?

Good question ;) There is some discussion if it is possible to make a 
new version of the board which is configurable to SD boot by HW. But 
there seem to be some layout issues. So atm I would answer your 
question with 'no'.

Best regards

Dirk