Pali Rohár 4a82fca8e3 arm: a37xx: pci: Fix a3700_fdt_fix_pcie_regions() function ... 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: cb2ddb291e ("arm64: mvebu: a37xx: add device-tree fixer for PCIe regions") Reviewed-by: Stefan Roese <sr@denx.de>		2021-06-04 11:32:41 +02:00
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Makefile	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
cpu.c	arm: a37xx: pci: Fix a3700_fdt_fix_pcie_regions() function	2021-06-04 11:32:41 +02:00