On 4/5/23 00:16, Pali Rohár wrote:
On Wednesday 05 April 2023 00:11:17 Marek Vasut wrote:
On 4/4/23 21:25, Pali Rohár wrote:
On Tuesday 04 April 2023 20:05:15 Marek Vasut wrote:
The eMMC HW partition 0 and 7 both mean USER HW partition.
This is not truth!
Can you please provide further details to back your claim ?
Yes, see a patch with explanation which I meanwhile sent: https://patchwork.ozlabs.org/project/uboot/patch/20230404202805.8523-1-pali@...
This very much adds a comment that looks like the content of the second paragraph of my reply, see below.
It is a good thing you mention the aforementioned patch, since exactly one line past the changes you implemented is the following piece of code:
https://source.denx.de/u-boot/u-boot/-/blob/master/common/spl/spl_mmc.c#L382
" int default_spl_mmc_emmc_boot_partition(struct mmc *mmc) ... part = (mmc->part_config >> 3) & PART_ACCESS_MASK; if (part == 7) part = 0; "
Which maps 7 to 0 .
This kind of screaming feedback with zero additional information is worthless, sorry. Before you proceed with any further replies, please have a look at JEDEC JESD84-B51 section 7.4.69 PARTITION_CONFIG Bit[5:3] BOOT_PARTITION_ENABLE , this is what is being discussed here. Value 1/2 is either BOOT HW partition, value 0/7 is treated as USER HW partition by the boot code.
Please read the paragraph above, I do not see any reply to it and I think that might put the conversation back on track.