mirror of
https://github.com/AsahiLinux/u-boot
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4a82fca8e3
Current version of this function uses a lot of incorrect assumptions about
the `ranges` DT property:
* parent(#address-cells) == 2
* #size-cells == 2
* number of entries == 2
* address size of first entry == 0x1000000
* second child address entry == base + 0x1000000
Trying to increase PCIe MEM space to more than 16 MiB leads to an overlap
with PCIe IO space, and trying to define additional MEM space (as a third
entry in the `ranges` DT property) causes U-Boot to crash when booting the
kernel.
## Flattened Device Tree blob at 04f00000
Booting using the fdt blob at 0x4f00000
Loading Device Tree to 000000001fb01000, end 000000001fb08f12 ... OK
ERROR: board-specific fdt fixup failed: <unknown error>
- must RESET the board to recover.
Fix a3700_fdt_fix_pcie_regions() to properly parse and update all addresses
in the `ranges` property according to
https://elinux.org/Device_Tree_Usage#PCI_Address_Translation
Now it is possible to increase PCIe MEM space from 16 MiB to maximal value
of 127 MiB.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Fixes:
|
||
|---|---|---|
| .. | ||
| armada8k | ||
| armada3700 | ||
| include/mach | ||
| serdes | ||
| .gitignore | ||
| arm64-common.c | ||
| cpu.c | ||
| dram.c | ||
| efuse.c | ||
| gpio.c | ||
| Kconfig | ||
| kwbimage.cfg.in | ||
| lowlevel_spl.S | ||
| Makefile | ||
| mbus.c | ||
| spl.c | ||
| timer.c | ||