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cpu: Add cpu_probe_all method

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Add a method to probe all CPUs of the board.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
This commit is contained in:
Mario Six 2018-08-06 10:23:43 +02:00 committed by Simon Glass
parent 50d188b955
commit 57370de377
2 changed files with 30 additions and 0 deletions
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23
drivers/cpu/cpu-uclass.c
View File

@ -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);

7
include/cpu.h
View File

@ -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