[U-Boot] [PATCH V8 8/9] omap3: implement boot parameter saving

[Aneesh V <aneesh@ti.com>]

Hi Simon,

On Monday 08 August 2011 01:33 PM, Simon Schwarz wrote:
> Hi Aneesh,
>
> On 08/05/2011 09:41 AM, Aneesh V wrote:
>> Hi Simon,
>>
>> On Tuesday 02 August 2011 09:29 PM, Simon Schwarz wrote:
>>> Implements the saving of boot params passed by OMAP3 ROM code.
>>>
>>> Signed-off-by: Simon Schwarz<simonschwarzcor@gmail.com>
>>> ---
>>> Didn't exist before V8
>>> ---
>>> arch/arm/cpu/armv7/omap-common/spl.c | 6 +++++-
>>> arch/arm/cpu/armv7/omap3/lowlevel_init.S | 9 +++++++--
>>> arch/arm/include/asm/omap_common.h | 10 ++++++++++
>>> 3 files changed, 22 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/arch/arm/cpu/armv7/omap-common/spl.c
>>> b/arch/arm/cpu/armv7/omap-common/spl.c
>>> index 53d10bf..3dd8e0d 100644
>>> --- a/arch/arm/cpu/armv7/omap-common/spl.c
>>> +++ b/arch/arm/cpu/armv7/omap-common/spl.c
>>> @@ -194,8 +194,12 @@ static void mmc_load_image(void)
>>> printf("spl: mmc init failed: err - %d\n", err);
>>> hang();
>>> }
>>> -
>>> +/* For OMAP3 there is no automatic boot mode detection */
>>> +#ifdef CONFIG_OMAP34XX
>>> + boot_mode = CONFIG_SYS_MMC_SD_BOOTMODE;
>>> +#else
>>> boot_mode = omap_boot_mode();
>>> +#endif
>>
>> Why boot mode detection is not supported? You seem to be saving
>> bootparams below that has boot mode information. Why don't you use it?
>>
>
> Because you wrote: "What I have done for OMAP4 will not work for OMAP3.
> For OMAP3 you will
> get only the boot-device(eMMC, MMC/SD, nand etc) and *not* the bootmode(raw
> vs FAT)."
> http://mid.gmane.org/4E256783.5080601 at ti.com
>
> Did I understand you wrong here?

Sorry for the noise. I mistook 'boot_mode' for 'boot_device'. Anyway,
instead of hard-coding this, I would prefer the following approach
taken by x-loader.

1. For eMMC - raw mode
2. For external MMC/SD card - FAT mode.

best regards,
Aneesh