From: Peng Fan <peng.fan@nxp.com>
To: u-boot@lists.denx.de
Subject: [PATCH V2 5/9] cpu: imx8: reimplement get cpu count
Date: Fri, 1 May 2020 21:44:14 +0800 [thread overview]
Message-ID: <20200501134418.7319-5-peng.fan@nxp.com> (raw)
In-Reply-To: <20200501134418.7319-1-peng.fan@nxp.com>
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>
---
V2:
Add R-b tag
drivers/cpu/imx8_cpu.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/cpu/imx8_cpu.c b/drivers/cpu/imx8_cpu.c
index 95653683ac..7c54c290b8 100644
--- a/drivers/cpu/imx8_cpu.c
+++ b/drivers/cpu/imx8_cpu.c
@@ -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)
--
2.16.4
next prev parent reply other threads:[~2020-05-01 13:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-01 13:44 [PATCH V2 1/9] uclass: cpu: Add new API to get udevice for current CPU Peng Fan
2020-05-01 13:44 ` [PATCH V2 2/9] cpu: sandbox: support is_current Peng Fan
2020-05-03 2:26 ` Simon Glass
2020-05-01 13:44 ` [PATCH V2 3/9] test: cpu: test current cpu Peng Fan
2020-05-03 2:26 ` Simon Glass
2020-05-01 13:44 ` [PATCH V2 4/9] common: board_f: Use cpu_get_current_dev in print_cpuinfo Peng Fan
2020-05-01 13:44 ` Peng Fan [this message]
2020-05-01 13:44 ` [PATCH V2 6/9] cpu: imx8: support a72 as boot cpu Peng Fan
2020-05-01 13:44 ` [PATCH V2 7/9] cpu: imx8: fix get core name and rate Peng Fan
2020-05-01 13:44 ` [PATCH V2 8/9] cpu: imx_cpu: Print the CPU temperature for iMX8QM A72 Peng Fan
2020-05-03 2:26 ` Simon Glass
2020-05-01 13:44 ` [PATCH V2 9/9] cpu: imx8: show RevC instead of Rev? at boot log Peng Fan
2020-05-03 2:26 ` [PATCH V2 1/9] uclass: cpu: Add new API to get udevice for current CPU Simon Glass
2020-05-03 13:14 ` Peng Fan
2020-05-04 12:53 ` Simon Glass
2020-05-04 12:56 ` Peng Fan
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