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authorSimon Glass <sjg@chromium.org>2015-04-29 22:26:01 -0600
committerSimon Glass <sjg@chromium.org>2015-04-30 16:13:48 -0600
commitbcb0c61e1a7f2a418e986044a9ade06561f8f8a8 (patch)
treef99022b998eeee57503e250bc8c9c022d0599f4e /arch/x86/cpu
parent86196c65acd7f4a524c4d8d34fd4d9a6afe040c2 (diff)
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x86: Allow CPUs to be set up after relocation
This permits init of additional CPU cores after relocation and when driver model is ready. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/cpu')
-rw-r--r--arch/x86/cpu/cpu.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index 78eb3fe..bb4a110 100644
--- 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,
+};