x86: Allow CPUs to be set up after relocation

[platform/kernel/u-boot.git] / arch / x86 / cpu / cpu.c

diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index 78eb3fe..bb4a110 100644 (file)
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -21,6 +21,8 @@
 
 #include <common.h>
 #include <command.h>
+#include <cpu.h>
+#include <dm.h>
 #include <errno.h>
 #include <malloc.h>
 #include <asm/control_regs.h>
@@ -518,6 +520,16 @@ char *cpu_get_name(char *name)
        return ptr;
 }
 
+int x86_cpu_get_desc(struct udevice *dev, char *buf, int size)
+{
+       if (size < CPU_MAX_NAME_LEN)
+               return -ENOSPC;
+
+       cpu_get_name(buf);
+
+       return 0;
+}
+
 int default_print_cpuinfo(void)
 {
        printf("CPU: %s, vendor %s, device %xh\n",
@@ -600,3 +612,29 @@ int last_stage_init(void)
        return 0;
 }
 #endif
+
+__weak int x86_init_cpus(void)
+{
+       return 0;
+}
+
+int cpu_init_r(void)
+{
+       return x86_init_cpus();
+}
+
+static const struct cpu_ops cpu_x86_ops = {
+       .get_desc       = x86_cpu_get_desc,
+};
+
+static const struct udevice_id cpu_x86_ids[] = {
+       { .compatible = "cpu-x86" },
+       { }
+};
+
+U_BOOT_DRIVER(cpu_x86_drv) = {
+       .name           = "cpu_x86",
+       .id             = UCLASS_CPU,
+       .of_match       = cpu_x86_ids,
+       .ops            = &cpu_x86_ops,
+};