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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2006-07-03 17:22:05 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-07-03 17:22:05 +1000 |
| commit | 980a65136569b841cebaad524a34482b0b1627a9 (patch) | |
| tree | 7207f26dfc1085b30a8bee9651da431490d59dd3 /arch/powerpc/kernel/prom_init.c | |
| parent | ab13446616118dc61c00ea50cc49919400717dd0 (diff) | |
| download | lwn-980a65136569b841cebaad524a34482b0b1627a9.tar.gz lwn-980a65136569b841cebaad524a34482b0b1627a9.zip | |
[POWERPC] Fix booting on Momentum "Apache" board (a Maple derivative)
This extends the maple device-tree workarounds to work on the
Apache board as well, and extends the maple platform probing code
to recognize the Apache board.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/prom_init.c')
| -rw-r--r-- | arch/powerpc/kernel/prom_init.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 1e95a9f8cda1..ebd501a59abd 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -1990,12 +1990,22 @@ static void __init flatten_device_tree(void) static void __init fixup_device_tree_maple(void) { phandle isa; + u32 rloc = 0x01002000; /* IO space; PCI device = 4 */ u32 isa_ranges[6]; - - isa = call_prom("finddevice", 1, 1, ADDR("/ht@0/isa@4")); + char *name; + + name = "/ht@0/isa@4"; + isa = call_prom("finddevice", 1, 1, ADDR(name)); + if (!PHANDLE_VALID(isa)) { + name = "/ht@0/isa@6"; + isa = call_prom("finddevice", 1, 1, ADDR(name)); + rloc = 0x01003000; /* IO space; PCI device = 6 */ + } if (!PHANDLE_VALID(isa)) return; + if (prom_getproplen(isa, "ranges") != 12) + return; if (prom_getprop(isa, "ranges", isa_ranges, sizeof(isa_ranges)) == PROM_ERROR) return; @@ -2005,15 +2015,15 @@ static void __init fixup_device_tree_maple(void) isa_ranges[2] != 0x00010000) return; - prom_printf("fixing up bogus ISA range on Maple...\n"); + prom_printf("Fixing up bogus ISA range on Maple/Apache...\n"); isa_ranges[0] = 0x1; isa_ranges[1] = 0x0; - isa_ranges[2] = 0x01002000; /* IO space; PCI device = 4 */ + isa_ranges[2] = rloc; isa_ranges[3] = 0x0; isa_ranges[4] = 0x0; isa_ranges[5] = 0x00010000; - prom_setprop(isa, "/ht@0/isa@4", "ranges", + prom_setprop(isa, name, "ranges", isa_ranges, sizeof(isa_ranges)); } #else |