dm: x86: baytrail: Correct PCI region 3 when driver model is used

[oweals/u-boot.git] / arch / x86 / cpu / cpu_x86.c

diff --git a/arch/x86/cpu/cpu_x86.c b/arch/x86/cpu/cpu_x86.c
index d32ba6614eebea18e6d230b194fb58d9e556a359..09410416a1ff07aee6698adc94165f37af958fa5 100644 (file)
--- a/arch/x86/cpu/cpu_x86.c
+++ b/arch/x86/cpu/cpu_x86.c
@@ -10,6 +10,8 @@
 #include <errno.h>
 #include <asm/cpu.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 int cpu_x86_bind(struct udevice *dev)
 {
        struct cpu_platdata *plat = dev_get_parent_platdata(dev);
@@ -30,8 +32,34 @@ int cpu_x86_get_desc(struct udevice *dev, char *buf, int size)
        return 0;
 }
 
+static int cpu_x86_get_count(struct udevice *dev)
+{
+       int node, cpu;
+       int num = 0;
+
+       node = fdt_path_offset(gd->fdt_blob, "/cpus");
+       if (node < 0)
+               return -ENOENT;
+
+       for (cpu = fdt_first_subnode(gd->fdt_blob, node);
+            cpu >= 0;
+            cpu = fdt_next_subnode(gd->fdt_blob, cpu)) {
+               const char *device_type;
+
+               device_type = fdt_getprop(gd->fdt_blob, cpu,
+                                         "device_type", NULL);
+               if (!device_type)
+                       continue;
+               if (strcmp(device_type, "cpu") == 0)
+                       num++;
+       }
+
+       return num;
+}
+
 static const struct cpu_ops cpu_x86_ops = {
        .get_desc       = cpu_x86_get_desc,
+       .get_count      = cpu_x86_get_count,
 };
 
 static const struct udevice_id cpu_x86_ids[] = {