[POWERPC] Various fixes to pcibios_enable_device()

[linux-2.6-omap-h63xx.git] / arch / powerpc / kernel / prom.c

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 9f329a8928eaed27f3192e27c729e24bb73ac888..6c2d8836f77dcf9b87c80db13b738449ca1bcdeb 100644 (file)
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -583,6 +583,20 @@ static void __init check_cpu_pa_features(unsigned long node)
                      ibm_pa_features, ARRAY_SIZE(ibm_pa_features));
 }
 
+#ifdef CONFIG_PPC64
+static void __init check_cpu_slb_size(unsigned long node)
+{
+       u32 *slb_size_ptr;
+
+       slb_size_ptr = of_get_flat_dt_prop(node, "ibm,slb-size", NULL);
+       if (slb_size_ptr != NULL) {
+               mmu_slb_size = *slb_size_ptr;
+       }
+}
+#else
+#define check_cpu_slb_size(node) do { } while(0)
+#endif
+
 static struct feature_property {
        const char *name;
        u32 min_value;
@@ -697,10 +711,23 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
                prop = of_get_flat_dt_prop(node, "cpu-version", NULL);
                if (prop && (*prop & 0xff000000) == 0x0f000000)
                        identify_cpu(0, *prop);
+#if defined(CONFIG_44x) && defined(CONFIG_PPC_FPU)
+               /*
+                * Since 440GR(x)/440EP(x) processors have the same pvr,
+                * we check the node path and set bit 28 in the cur_cpu_spec
+                * pvr for EP(x) processor version. This bit is always 0 in
+                * the "real" pvr. Then we call identify_cpu again with
+                * the new logical pvr to enable FPU support.
+                */
+               if (strstr(uname, "440EP")) {
+                       identify_cpu(0, cur_cpu_spec->pvr_value | 0x8);
+               }
+#endif
        }
 
        check_cpu_feature_properties(node);
        check_cpu_pa_features(node);
+       check_cpu_slb_size(node);
 
 #ifdef CONFIG_PPC_PSERIES
        if (nthreads > 1)