Merge tag 'u-boot-imx-20200511' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx

i.MX for 2020.07
----------------

- i.MX NAND and nandbxb for i.MX8M
- imx8MM : new beacon devkit
- imx8MQ : new pico-imx8MQ
- imx8QXP : extend to enable M4, fixes
- add thermal support
- caches in SPL (missing board)
- Fixes

Travis: https://travis-ci.org/github/sbabic/u-boot-imx/builds/685391011

1 files changed, 34 insertions, 0 deletions

diff --git a/drivers/cpu/cpu-uclass.c b/drivers/cpu/cpu-uclass.c
index 457f77b7c89..8352e2eb0bc 100644
--- a/drivers/cpu/cpu-uclass.c
+++ b/drivers/cpu/cpu-uclass.c
@@ -10,6 +10,7 @@
 #include <errno.h>
 #include <dm/lists.h>
 #include <dm/root.h>
+#include <linux/err.h>
 
 int cpu_probe_all(void)
 {
@@ -34,6 +35,39 @@ int cpu_probe_all(void)
 	return 0;
 }
 
+int cpu_is_current(struct udevice *cpu)
+{
+	struct cpu_ops *ops = cpu_get_ops(cpu);
+
+	if (ops->is_current) {
+		if (ops->is_current(cpu))
+			return 1;
+	}
+
+	return -ENOSYS;
+}
+
+struct udevice *cpu_get_current_dev(void)
+{
+	struct udevice *cpu;
+	int ret;
+
+	uclass_foreach_dev_probe(UCLASS_CPU, cpu) {
+		if (cpu_is_current(cpu) > 0)
+			return cpu;
+	}
+
+	/* If can't find current cpu device, use the first dev instead */
+	ret = uclass_first_device_err(UCLASS_CPU, &cpu);
+	if (ret) {
+		debug("%s: Could not get CPU device (err = %d)\n",
+		      __func__, ret);
+		return NULL;
+	}
+
+	return cpu;
+}
+
 int cpu_get_desc(struct udevice *dev, char *buf, int size)
 {
 	struct cpu_ops *ops = cpu_get_ops(dev);