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cpu: imx8: reimplement get cpu count

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Return 4 is not correct on i.MX8DX/DXL/8QM and etc. we need to count
available cpu node with device_type "cpu".

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2020-05-03 21:58:51 +08:00 committed by Stefano Babic
parent f5b66af2cb
commit adb3bd7654
1 changed files with 18 additions and 1 deletions
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19
drivers/cpu/imx8_cpu.c
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@ -118,7 +118,24 @@ static int cpu_imx_get_info(struct udevice *dev, struct cpu_info *info)
static int cpu_imx_get_count(struct udevice *dev)
{
return 4;
ofnode node;
int num = 0;
ofnode_for_each_subnode(node, dev_ofnode(dev->parent)) {
const char *device_type;
if (!ofnode_is_available(node))
continue;
device_type = ofnode_read_string(node, "device_type");
if (!device_type)
continue;
if (!strcmp(device_type, "cpu"))
num++;
}
return num;
}
static int cpu_imx_get_vendor(struct udevice *dev, char *buf, int size)