On 1/27/20 9:14 AM, Guillermo Rodriguez Garcia wrote:
Hi Marek,
Hi,
El lun., 27 ene. 2020 a las 8:52, Lukasz Majewski (lukma@denx.de) escribió:
Hi Marek,
On 1/26/20 9:26 PM, Lukasz Majewski wrote: Hi,
[...]
Guillermo RodrÃguez (1): dfu: Add option to skip empty pages when flashing UBI images to
Can that option be enabled/disabled at runtime instead of being hardcoded?
It has been designed in a similar way to Android's existing FASTBOOT_FLASH_NAND_TRIMFFS option.
Without this option, UBI images need to be built with --space-fixup [1] so that the kernel can "fix" the NAND on first mount. When this option is used, --space-fixup is no longer necessary because dfu knows how to correctly flash UBI images. However, UBI images built with --space-fixup will still work fine.
Does NAND.TRIMFFS preserve UBI erase counters in the NAND ? I don't think so, so I don't think "correctly flash UBI images" is the correct formulation here.
In other words, enabling this option at buildtime has no countereffects. So there is no point in making it configurable at runtime, if support has been built into U-boot.
So what if I want to write raw NAND image without "trimffs" on such a system via DFU, e.g. a bootloader ? How can I do that ?