u-boot.git/lib/fdtdec.c, branch v2023.07.01

Merge branch 'master' of https://source.denx.de/u-boot/custodians/u-boot-sunxi

2023-05-01T01:29:50Z

Please pull the second part of the sunxi pull request for this cycle. Another bunch of patches that replace old-school U-Boot hacks with proper DM based code, this time for the raw NAND flash driver, and the USB PHY VBUS detection code. Plus two smaller patches that were sitting in my inbox for a while. Gitlab CI passed. In lack of some supported board with NAND flash I couldn't really test this part, but apparently this was tested by the reviewer. I briefly ran the branch on some boards with USB-OTG, and this still worked.

fdt: Indicate that people should use the ofnode API

2023-04-28T17:52:38Z

Add a note to the comment at the top of this file. Signed-off-by: Simon Glass

mtd: nand: sunxi: Convert from fdtdec to ofnode

2023-04-28T00:06:57Z

As a first step toward converting this driver to the driver model, use the ofnode abstraction to replace direct references to the FDT blob. Using ofnode_read_u32_index removes an extra pair of loops and makes the allwinner,rb property optional, matching the devicetree binding. Signed-off-by: Samuel Holland Acked-by: Andre Przywara Signed-off-by: Andre Przywara

Revert "fdtdec: drop needlessly convoluted CONFIG_PHANDLE_CHECK_SEQ"

2023-01-18T18:49:13Z

The fdt_path_offset() function is slow since it must scan the tree. This substantial overhead now applies to all boards. The original code may not be ideal but it is fit for purpose and is only needed on a few boards. Reverting this reduces time to set up driver model by about 30ms. Before revert: Accumulated time: 47,170 dm_r 53,237 dm_spl 572,986 dm_f Accumulated time: 44,598 dm_r 50,347 dm_spl 549,133 dm_f This reverts commit 26f981f295d00351b6f0c69b5317b254b2361cc0. Signed-off-by: Simon Glass

fdt: Check for overlapping data and FDT

2023-01-18T18:49:13Z

If the FDT overlaps with the data region of the image, or with the stack, it can become corrupted before relocation. Add a check for this, behind a debug flag, as it can be very confusing and time-consuming to debug. Signed-off-by: Simon Glass

fdt: Pass the device tree to fdtdec_prepare_fdt()

2023-01-18T18:49:13Z

This function uses gd->fdt_blob a lot and cannot be used to check any other device tree. Use a parameter instead. Signed-off-by: Simon Glass

fdt: Drop ifdefs in fdtdec_prepare_fdt()

2023-01-18T18:49:13Z

This function is a bit messy with several #ifdefs. Convert them to use C for the conditions. Rewrite the function comment since most of it is stale. Signed-off-by: Simon Glass

fdt: Avoid exporting fdtdec_prepare_fdt()

2023-01-18T18:49:13Z

This function is not used outside this file. Make it static. Signed-off-by: Simon Glass

dm: core: Provide a way to reset the device tree

2022-09-30T02:43:43Z

At present there is only one device tree used by the ofnode functions, except for some esoteric use of live tree. In preparation for supporting more than one, add a way to reset the list of device trees. For now this does nothing. Signed-off-by: Simon Glass

dm: core: Drop ofnode_is_available()

2022-09-29T20:11:31Z

This function is also available as ofnode_is_enabled(), so use that instead. Signed-off-by: Simon Glass