1 files changed, 14 insertions, 9 deletions

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index a1d582e38627..1db10f70ae69 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -1199,7 +1199,7 @@ static void __init prom_initialize_tce_table(void)
                 if ((type[0] == 0) || (strstr(type, RELOC("pci")) == NULL))
                         continue;
 
-                /* Keep the old logic in tack to avoid regression. */
+                /* Keep the old logic intact to avoid regression. */
                 if (compatible[0] != 0) {
                         if ((strstr(compatible, RELOC("python")) == NULL) &&
                             (strstr(compatible, RELOC("Speedwagon")) == NULL) &&
@@ -2046,6 +2046,7 @@ static void __init fixup_device_tree_maple(void)
 /*
  * Pegasos and BriQ lacks the "ranges" property in the isa node
  * Pegasos needs decimal IRQ 14/15, not hexadecimal
+ * Pegasos has the IDE configured in legacy mode, but advertised as native
  */
 static void __init fixup_device_tree_chrp(void)
 {
@@ -2083,9 +2084,13 @@ static void __init fixup_device_tree_chrp(void)
                 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));
+                prom_setprop(ph, name, "interrupts", prop, 2*sizeof(u32));
+                prom_printf("Fixing up IDE class-code on Pegasos...\n");
+                rc = prom_getprop(ph, "class-code", prop, sizeof(u32));
+                if (rc == sizeof(u32)) {
+                        prop[0] &= ~0x5;
+                        prom_setprop(ph, name, "class-code", prop, sizeof(u32));
+                }
         }
 }
 #else
@@ -2226,7 +2231,7 @@ static void __init fixup_device_tree(void)
 
 static void __init prom_find_boot_cpu(void)
 {
-        struct prom_t *_prom = &RELOC(prom);
+        struct prom_t *_prom = &RELOC(prom);
         u32 getprop_rval;
         ihandle prom_cpu;
         phandle cpu_pkg;
@@ -2246,7 +2251,7 @@ static void __init prom_find_boot_cpu(void)
 static void __init prom_check_initrd(unsigned long r3, unsigned long r4)
 {
 #ifdef CONFIG_BLK_DEV_INITRD
-        struct prom_t *_prom = &RELOC(prom);
+        struct prom_t *_prom = &RELOC(prom);
 
         if (r3 && r4 && r4 != 0xdeadbeef) {
                 unsigned long val;
@@ -2279,7 +2284,7 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
                                unsigned long pp,
                                unsigned long r6, unsigned long r7)
 {       
-        struct prom_t *_prom;
+        struct prom_t *_prom;
         unsigned long hdr;
         unsigned long offset = reloc_offset();
 
@@ -2338,8 +2343,8 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
         /*
          * Copy the CPU hold code
          */
-        if (RELOC(of_platform) != PLATFORM_POWERMAC)
-                copy_and_flush(0, KERNELBASE + offset, 0x100, 0);
+        if (RELOC(of_platform) != PLATFORM_POWERMAC)
+                copy_and_flush(0, KERNELBASE + offset, 0x100, 0);
 
         /*
          * Do early parsing of command line