Hi,
I'm stumbling upon a problem noticed on the Ebony (440GP) eval board.
Here the first chip-select is connected to 512KiB of SRAM and 512KiB
NOR flash. The dts part look this way:
small-fl...@0,80000 {
compatible = "jedec-flash";
bank-width = <1>;
reg = <0x00000000 0x00080000
0x00080000>;
#address-cells = <1>;
#size-cells = <1>;
partit...@0 {
label = "OpenBIOS";
reg = <0x00000000 0x00080000>;
read-only;
};
};
Chip-select 0 has this setup:
base-addr = 0xfff00000, size = 0x100000 (phys addr 0x1fff00000 .. 0x1ffffffff)
The problem/crash happens in the physmap_of driver, when the the driver
calls do_map_probe() with the following range:
base-addr = 0xfff80000, size = 0x100000 (phys addr 0x1fff80000 .. 0x20007ffff)
My question now is, should of_address_to_resource() subtract the
offset (here 0x80000) from the size? Is this is bug here? Or should
the physmap_of driver take care of this issue somehow?
Cheers,
Stefan
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