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sparc: workaround for Netra T1 105

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The address-size property is missing, but we don't really need it.

Change-Id: Iff3de89c811d16a263eadf796a0e6eb157dbe18b
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2356
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
This commit is contained in:
PulkoMandy 2020-03-14 21:42:35 +01:00 committed by waddlesplash
parent 6d929a001e
commit 5424c3a22e
1 changed files with 9 additions and 4 deletions
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13
src/system/boot/platform/openfirmware/arch/sparc/mmu.cpp
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@ -80,14 +80,19 @@ find_physical_memory_ranges(size_t &total)
// #address-cells and #size-cells matches the number of 32-bit 'cells'
// representing the length of the base address and size fields
intptr_t root = of_finddevice("/");
int32 regAddressCells = of_address_cells(root);
int32 regSizeCells = of_size_cells(root);
if (regAddressCells == OF_FAILED || regSizeCells == OF_FAILED) {
dprintf("finding base/size length counts failed, assume 32-bit.\n");
regAddressCells = 1;
if (regSizeCells == OF_FAILED) {
dprintf("finding size of memory cells failed, assume 32-bit.\n");
regSizeCells = 1;
}
int32 regAddressCells = of_address_cells(root);
if (regAddressCells == OF_FAILED) {
// Sun Netra T1-105 is missing this, but we can guess that if the size
// is 64bit, the address also likely is.
regAddressCells = regSizeCells;
}
if (regAddressCells != 2 || regSizeCells != 2) {
panic("%s: Unsupported OpenFirmware cell count detected.\n"
"Address Cells: %" B_PRId32 "; Size Cells: %" B_PRId32