Feature/imx6qdl leave ecc to gpmi nand #32
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Make the BCB handling (BCB, LDLB, FCB, DBBT) configurable. Some SoCs, like the i.MX6, might use the modern gpmi-nand. This moved error code implementation and some bad block handling to the hardware or, at least, driver. This is preparatory work to leverage these interfaces. Signed-off-by: Leif Middelschulte <[email protected]>
Signed-off-by: Leif Middelschulte <[email protected]>
Signed-off-by: Leif Middelschulte <[email protected]>
Signed-off-by: Leif Middelschulte <[email protected]>
Signed-off-by: Leif Middelschulte <[email protected]>
Query the boot fuses to determine the search area count. Signed-off-by: Leif Middelschulte <[email protected]>
Warn the user if she targets a multiarea chip. The i.MX manual does not explicitly mention those in the FCB context. Signed-off-by: Leif Middelschulte <[email protected]>
It is eventually used by dbbt _and_ fcb. On the i.MX 6 it is documented to be only used by the fcb. Signed-off-by: Leif Middelschulte <[email protected]>
Signed-off-by: Leif Middelschulte <[email protected]>
The LDLB is not supported on many platforms. So, eventually, skip its update. Signed-off-by: Leif Middelschulte <[email protected]>
Signed-off-by: Leif Middelschulte <[email protected]>
Adds switch to select on of the two firmware slots. This allow to safely update on slot while the other slot is still valid. Behavior taken from barebox. Signed-off-by: Jan Remmet <[email protected]> Taken from: https://git.phytec.de/meta-phytec/tree/recipes-bsp/imx-kobs/imx-kobs/0001-Slot-switch.patch?h=zeus&id=72ef16bdeef886e9939ef25b66ad68bc50810a78
The slot feature allows to switch the two boot streams. So we can write the "unused" slot first. But in mtd_commit_structures first the FCB is written and thereafter the boot streams. If a power cut occurs, the FCB may point to a partial written boot stream. Now first the "unused" bootstream is written, than the FCB table and the "actual" boot stream. Making the update is power cut tolerant. Taken from: https://git.phytec.de/meta-phytec/tree/recipes-bsp/imx-kobs/imx-kobs/0001-mtd-write-boot-streams-separately.patch?h=zeus&id=72ef16bdeef886e9939ef25b66ad68bc50810a78
The search exponent as passed by the user shall not be overwritten.
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These changes add/fix support for:
Furthermore does this changeset a cover boot switch mechanism, courtesy of jan Remmet and Bernd Westermann