1 files changed, 41 insertions, 5 deletions

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index ebd501a59abd..4394e545f9f7 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -557,7 +557,9 @@ unsigned long prom_memparse(const char *ptr, const char **retptr)
 static void __init early_cmdline_parse(void)
 {
         struct prom_t *_prom = &RELOC(prom);
+#ifdef CONFIG_PPC64
         const char *opt;
+#endif
         char *p;
         int l = 0;
 
@@ -644,13 +646,13 @@ static unsigned char ibm_architecture_vec[] = {
         5 - 1,                          /* 5 option vectors */
 
         /* option vector 1: processor architectures supported */
-        3 - 1,                          /* length */
+        3 - 2,                          /* length */
         0,                              /* don't ignore, don't halt */
         OV1_PPC_2_00 | OV1_PPC_2_01 | OV1_PPC_2_02 | OV1_PPC_2_03 |
         OV1_PPC_2_04 | OV1_PPC_2_05,
 
         /* option vector 2: Open Firmware options supported */
-        34 - 1,                         /* length */
+        34 - 2,                         /* length */
         OV2_REAL_MODE,
         0, 0,
         W(0xffffffff),                  /* real_base */
@@ -664,16 +666,16 @@ static unsigned char ibm_architecture_vec[] = {
         48,                             /* max log_2(hash table size) */
 
         /* option vector 3: processor options supported */
-        3 - 1,                          /* length */
+        3 - 2,                          /* length */
         0,                              /* don't ignore, don't halt */
         OV3_FP | OV3_VMX,
 
         /* option vector 4: IBM PAPR implementation */
-        2 - 1,                          /* length */
+        2 - 2,                          /* length */
         0,                              /* don't halt */
 
         /* option vector 5: PAPR/OF options */
-        3 - 1,                          /* length */
+        3 - 2,                          /* length */
         0,                              /* don't ignore, don't halt */
         OV5_LPAR | OV5_SPLPAR | OV5_LARGE_PAGES,
 };
@@ -2030,6 +2032,39 @@ static void __init fixup_device_tree_maple(void)
 #define fixup_device_tree_maple()
 #endif
 
+#ifdef CONFIG_PPC_CHRP
+/* Pegasos lacks the "ranges" property in the isa node */
+static void __init fixup_device_tree_chrp(void)
+{
+        phandle isa;
+        u32 isa_ranges[6];
+        char *name;
+        int rc;
+
+        name = "/pci@80000000/isa@c";
+        isa = call_prom("finddevice", 1, 1, ADDR(name));
+        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");
+
+        isa_ranges[0] = 0x1;
+        isa_ranges[1] = 0x0;
+        isa_ranges[2] = 0x01006000;
+        isa_ranges[3] = 0x0;
+        isa_ranges[4] = 0x0;
+        isa_ranges[5] = 0x00010000;
+        prom_setprop(isa, name, "ranges",
+                        isa_ranges, sizeof(isa_ranges));
+}
+#else
+#define fixup_device_tree_chrp()
+#endif
+
 #if defined(CONFIG_PPC64) && defined(CONFIG_PPC_PMAC)
 static void __init fixup_device_tree_pmac(void)
 {
@@ -2077,6 +2112,7 @@ static void __init fixup_device_tree_pmac(void)
 static void __init fixup_device_tree(void)
 {
         fixup_device_tree_maple();
+        fixup_device_tree_chrp();
         fixup_device_tree_pmac();
 }