From Adrien Destugues <pulkomandy@xxxxxxxxx>:
Adrien Destugues has uploaded this change for review. (
https://review.haiku-os.org/c/haiku/+/2356 ;)
Change subject: sparc: workaround for Netra T1 105
......................................................................
sparc: workaround for Netra T1 105
The address-size property is missing, but we don't really need it.
---
M src/system/boot/platform/openfirmware/arch/sparc/mmu.cpp
1 file changed, 9 insertions(+), 4 deletions(-)
git pull ssh://git.haiku-os.org:22/haiku refs/changes/56/2356/1
diff --git a/src/system/boot/platform/openfirmware/arch/sparc/mmu.cpp
b/src/system/boot/platform/openfirmware/arch/sparc/mmu.cpp
index 28a7027..8b61d21 100644
--- a/src/system/boot/platform/openfirmware/arch/sparc/mmu.cpp
+++ b/src/system/boot/platform/openfirmware/arch/sparc/mmu.cpp
@@ -80,14 +80,19 @@
// #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
--
To view, visit https://review.haiku-os.org/c/haiku/+/2356
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Gerrit-Project: haiku
Gerrit-Branch: master
Gerrit-Change-Id: Iff3de89c811d16a263eadf796a0e6eb157dbe18b
Gerrit-Change-Number: 2356
Gerrit-PatchSet: 1
Gerrit-Owner: Adrien Destugues <pulkomandy@xxxxxxxxx>
Gerrit-MessageType: newchange
