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| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-07-25 21:38:49 +0200 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2020-08-22 07:58:39 -0600 |
| commit | ae6b33dcc342e8539f4f69aba238748e9e89280a (patch) | |
| tree | ca97266266553e62a86e10c9c8a9ae1f15f3ae3f /drivers/core/ofnode.c | |
| parent | 2e6132d835631946b7a67dedd8f5bc902304b0f9 (diff) | |
| download | u-boot-ae6b33dcc342e8539f4f69aba238748e9e89280a.zip u-boot-ae6b33dcc342e8539f4f69aba238748e9e89280a.tar.gz u-boot-ae6b33dcc342e8539f4f69aba238748e9e89280a.tar.bz2 | |
dm: fix ofnode_read_addr/size_cells()
In the case of the live tree ofnode_read_addr_cells() and
ofnode_read_size_cells() return the #address-cells and #size-cells defined
in the parent node. With the patch the same is done for a non-live tree.
The only consumer of these functions is currently the CFI flash driver.
This patch fixes the incorrect parsing of the device tree leading to
'saveenv' failing on qemu_arm64_defconfig.
For testing qemu-system-aarch64 has to be called with
-drive if=pflash,format=raw,index=1,file=envstore.img
to provide the flash memory. envstore.img must be 64 MiB large.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'drivers/core/ofnode.c')
| -rw-r--r-- | drivers/core/ofnode.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index c37afa1..d02d8d3 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -776,18 +776,26 @@ int ofnode_read_pci_vendev(ofnode node, u16 *vendor, u16 *device) int ofnode_read_addr_cells(ofnode node) { - if (ofnode_is_np(node)) + if (ofnode_is_np(node)) { return of_n_addr_cells(ofnode_to_np(node)); - else /* NOTE: this call should walk up the parent stack */ - return fdt_address_cells(gd->fdt_blob, ofnode_to_offset(node)); + } else { + int parent = fdt_parent_offset(gd->fdt_blob, + ofnode_to_offset(node)); + + return fdt_address_cells(gd->fdt_blob, parent); + } } int ofnode_read_size_cells(ofnode node) { - if (ofnode_is_np(node)) + if (ofnode_is_np(node)) { return of_n_size_cells(ofnode_to_np(node)); - else /* NOTE: this call should walk up the parent stack */ - return fdt_size_cells(gd->fdt_blob, ofnode_to_offset(node)); + } else { + int parent = fdt_parent_offset(gd->fdt_blob, + ofnode_to_offset(node)); + + return fdt_size_cells(gd->fdt_blob, parent); + } } int ofnode_read_simple_addr_cells(ofnode node) |