On 06/04/2013 05:16 PM, Fabio Estevam wrote:
> On Tue, Jun 4, 2013 at 7:12 PM, Stephen Warren <swar...@wwwdotorg.org> wrote:
>
>> static void fini_mmc_for_env(struct mmc *mmc)
>> {
>> #ifdef CONFIG_SYS_MMC_ENV_PART
>> - if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num)
>> + if (mmc->part_num != orig_part_num)
>> mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV,
>> - mmc->part_num);
>> + orig_part_num);
>
> If I keep the original 'mmc->part_num' here, then it works.
It doesn't "work", it just hides the problem. By passing mmc->part_num
here, you're passing the partition that's already/currently selected
rather than restoring the original value. Selecting it again is a no-op;
IIRC the MMC core explicitly checks for this condition and immediately
returns without touching the HW.
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