Add a method to probe all CPUs of the board.
Signed-off-by: Mario Six <mario....@gdsys.cc>
---
Notes:
v3 -> v4:
New in v4
drivers/cpu/cpu-uclass.c | 23 +++++++++++++++++++++++
include/cpu.h | 7 +++++++
2 files changed, 30 insertions(+)
diff --git a/drivers/cpu/cpu-uclass.c b/drivers/cpu/cpu-uclass.c
index f362eb11e72..457f77b7c89 100644
--- a/drivers/cpu/cpu-uclass.c
+++ b/drivers/cpu/cpu-uclass.c
@@ -11,6 +11,29 @@
#include <dm/lists.h>
#include <dm/root.h>
+int cpu_probe_all(void)
+{
+ struct udevice *cpu;
+ int ret;
+
+ ret = uclass_first_device(UCLASS_CPU, &cpu);
+ if (ret) {
+ debug("%s: No CPU found (err = %d)\n", __func__, ret);
+ return ret;
+ }
+
+ while (cpu) {
+ ret = uclass_next_device(&cpu);
+ if (ret) {
+ debug("%s: Error while probing CPU (err = %d)\n",
+ __func__, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
int cpu_get_desc(struct udevice *dev, char *buf, int size)
{
struct cpu_ops *ops = cpu_get_ops(dev);
diff --git a/include/cpu.h b/include/cpu.h
index 22467cb9b3a..367c5f46a00 100644
--- a/include/cpu.h
+++ b/include/cpu.h
@@ -125,4 +125,11 @@ int cpu_get_count(struct udevice *dev);
*/
int cpu_get_vendor(struct udevice *dev, char *buf, int size);
+/**
+ * cpu_probe_all() - Probe all available CPUs
+ *
+ * Return: 0 if OK, -ve on error
+ */
+int cpu_probe_all(void);
+
#endif
--
2.11.0
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