From 980a65136569b841cebaad524a34482b0b1627a9 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 3 Jul 2006 17:22:05 +1000 Subject: [PATCH] [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 Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/prom_init.c | 20 +++++++++++++++----- arch/powerpc/platforms/maple/setup.c | 6 ++++-- 2 files changed, 19 insertions(+), 7 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 diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index 5cf90c28b141..611ca8e979e5 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -11,7 +11,7 @@ * */ -#define DEBUG +#undef DEBUG #include #include @@ -256,7 +256,9 @@ static void __init maple_progress(char *s, unsigned short hex) static int __init maple_probe(void) { unsigned long root = of_get_flat_dt_root(); - if (!of_flat_dt_is_compatible(root, "Momentum,Maple")) + + if (!of_flat_dt_is_compatible(root, "Momentum,Maple") && + !of_flat_dt_is_compatible(root, "Momentum,Apache")) return 0; /* * On U3, the DART (iommu) must be allocated now since it -- 2.20.1