Must be set to 2. Read deassertion time for AAD – gpmc,adv-aad-mux-wr-off-ns: Must be less than “gpmc,num-waitpins”. Jun 8, 6: We are glad that we were able to resolve this issue, and will now proceed to close this thread. Add “cycle2cycle-delay” between successive.

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The names of these partitions, their sizes in hex and offsets in hex are determined within the specific board’s device tree file.

Below contains the exact contents of ubinize. You can re-use that approach to write into GPMC memory: Assertion time for AAD – gpmc,adv-aad-mux-rd-off-ns: GPMC chip-select settings properties for child nodes. Within the kernel NAND partitions are accessed via mtd devices.

Multiple access word delay – gpmc,access-ns: Linux Core Product Group. You will need to re-probe the NAND driver if it has already probed.

Assertion time for AAD – gpmc,oe-aad-mux-off-ns: If you have a related question, please click the ” Ask a related question ” button in the top right corner. Valid values are 1 gpkc address – address – data.


Linux/AM3352: GPMC access from kernel

No license, either express or implied, by estoppel or otherwise, is granted by TI. Note that once partitions are defined in device-tree and present in a mainline kernel release, they cannot be changed because this breaks users who have existing data on NAND flash and upgrade to new kernel and device-tree. This is similar to the files and directories layout you will use to copy a file system onto a SD card for booting purposes.

All postings and use of the content on this site are subject to the Terms of Use of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms of Use of this site. For devices that include GPMC: The GPMC supports 8 – bit.

Ask a new question Ask a new question Cancel. Must be set to 2. Must be set up to reflect the memory layout with four integer values for each chip-select line in use: Write deassertion time for AAD.

[Resolved] Linux/AM GPMC access from kernel – Processors forum – Processors – TI E2E Community

Doing so may cause damage to the board or SoC. DMA performs best when linuc can read large amount of data at a time. Timing properties for child nodes. Assertion time for AAD.


GPMC chip – select settings properties for child nodes. A resource specifier for the register space see the example below – ti,hwmods: Linux Hi, I am using sdk 3. Add “cycle2cycle-delay” between successive.

If property is present parameter enabled and. Building a UBI file system depends on two applications.

You mean like this? Therefore, to have the signals properly muxed for NAND to work Pin 1 first pin on the left must be turned on and Pin 2 must be turned off. The maximum number of chip-select lines that controller can support. GPMC clock activation time.

Below command will provide this information:.