[U-Boot] [PATCH] imx: imximage: add new CHECK/CLR BIT command
Stefano Babic
sbabic at denx.de
Mon Jun 15 17:53:19 CEST 2015
Hi Peng,
On 15/06/2015 17:17, Fabio Estevam wrote:
> Hi Peng,
>
> On Sun, Jun 14, 2015 at 6:38 AM, Peng Fan <Peng.Fan at freescale.com> wrote:
>> Since rom code supports the following commands, add new commands support in
>> imximage.
>>
>> 1. CHECK_BITS_SET 4 [address] [mask bit]
>> means:
>> while ((*address & mask) != mask);
>>
>> 2. CHECK_BITS_CLR 4 [address] [mask bit]
>> means:
>> while ((*address & ~mask) != 0);
>>
>> 2. CLR_BIT 4 [address] [mask bit]
>> means:
>> *address = *address & ~mask;
>>
>> dcd_v2_t is redefined, because there may not be only one write data command,
>> there may be many different commands like CHECK_BITS_SET, CHECK_BITS_CLR and
>> CLR_BIT.
>>
>> dcd_len is still leaved there, since changing it needs changes for dcd v1.
>> For v2, we check whether dcd size is larger than MAX_DCD_SIZE_V2, but not
>> dcd_len.
>>
>> Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
>
> What about just using SPL mechanism instead?
Thanks, Fabio. I can only join to your proposal.
Best regards,
Stefano Babic
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