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authorOlaf Hering <olaf@aepfle.de>2007-04-04 18:20:04 +0200
committerPaul Mackerras <paulus@samba.org>2007-04-13 04:00:25 +1000
commite48059225c2edc6f1e5a2008261f1efdf606f247 (patch)
treee4c3bc21bc53b0014dfa8a0c1982f84a3e55b028 /arch/powerpc/kernel
parent9c1a2bae0cc52b21121ea2380a2db0294ad0d8e7 (diff)
[POWERPC] Add correct interrupt property for pegasos ide
The firmware assigns irq 20/21 to the VIA IDE device on Pegasos. But the required interrupt is 14/15. Maybe someone confused decimal vs. hexadecimal values. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/prom_init.c55
1 files changed, 33 insertions, 22 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 4fb5938ce6d..e27d9d1b6e6 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2035,39 +2035,50 @@ static void __init fixup_device_tree_maple(void)
#endif
#ifdef CONFIG_PPC_CHRP
-/* Pegasos and BriQ lacks the "ranges" property in the isa node */
+/*
+ * Pegasos and BriQ lacks the "ranges" property in the isa node
+ * Pegasos needs decimal IRQ 14/15, not hexadecimal
+ */
static void __init fixup_device_tree_chrp(void)
{
- phandle isa;
- u32 isa_ranges[6];
+ phandle ph;
+ u32 prop[6];
u32 rloc = 0x01006000; /* IO space; PCI device = 12 */
char *name;
int rc;
name = "/pci@80000000/isa@c";
- isa = call_prom("finddevice", 1, 1, ADDR(name));
- if (!PHANDLE_VALID(isa)) {
+ ph = call_prom("finddevice", 1, 1, ADDR(name));
+ if (!PHANDLE_VALID(ph)) {
name = "/pci@ff500000/isa@6";
- isa = call_prom("finddevice", 1, 1, ADDR(name));
+ ph = call_prom("finddevice", 1, 1, ADDR(name));
rloc = 0x01003000; /* IO space; PCI device = 6 */
}
- if (!PHANDLE_VALID(isa))
- return;
-
- rc = prom_getproplen(isa, "ranges");
- if (rc != 0 && rc != PROM_ERROR)
- return;
-
- prom_printf("Fixing up missing ISA range on Pegasos...\n");
+ if (PHANDLE_VALID(ph)) {
+ rc = prom_getproplen(ph, "ranges");
+ if (rc == 0 || rc == PROM_ERROR) {
+ prom_printf("Fixing up missing ISA range on Pegasos...\n");
+
+ prop[0] = 0x1;
+ prop[1] = 0x0;
+ prop[2] = rloc;
+ prop[3] = 0x0;
+ prop[4] = 0x0;
+ prop[5] = 0x00010000;
+ prom_setprop(ph, name, "ranges", prop, sizeof(prop));
+ }
+ }
- isa_ranges[0] = 0x1;
- isa_ranges[1] = 0x0;
- isa_ranges[2] = rloc;
- isa_ranges[3] = 0x0;
- isa_ranges[4] = 0x0;
- isa_ranges[5] = 0x00010000;
- prom_setprop(isa, name, "ranges",
- isa_ranges, sizeof(isa_ranges));
+ name = "/pci@80000000/ide@C,1";
+ ph = call_prom("finddevice", 1, 1, ADDR(name));
+ if (PHANDLE_VALID(ph)) {
+ prom_printf("Fixing up IDE interrupt on Pegasos...\n");
+ prop[0] = 14;
+ prop[1] = 0x0;
+ prop[2] = 15;
+ prop[3] = 0x0;
+ prom_setprop(ph, name, "interrupts", prop, 4*sizeof(u32));
+ }
}
#else
#define fixup_device_tree_chrp()