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imx8: cpu: get temperature when print cpu desc

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Read the temperature when print cpu inforation.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan
2019-04-26 01:44:27 +00:00
committed by Stefano Babic
parent c0df121a97
commit 1796e50939
1 changed files with 38 additions and 2 deletions
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40
arch/arm/mach-imx/imx8/cpu.c
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@@ -11,6 +11,7 @@
#include <dm/lists.h>
#include <dm/uclass.h>
#include <errno.h>
#include <thermal.h>
#include <asm/arch/sci/sci.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch-imx/cpu.h>
@@ -573,15 +574,50 @@ const char *get_core_name(void)
return "?";
}
#if IS_ENABLED(CONFIG_IMX_SCU_THERMAL)
static int cpu_imx_get_temp(void)
{
struct udevice *thermal_dev;
int cpu_tmp, ret;
ret = uclass_get_device_by_name(UCLASS_THERMAL, "cpu-thermal0",
&thermal_dev);
if (!ret) {
ret = thermal_get_temp(thermal_dev, &cpu_tmp);
if (ret)
return 0xdeadbeef;
} else {
return 0xdeadbeef;
}
return cpu_tmp;
}
#else
static int cpu_imx_get_temp(void)
{
return 0;
}
#endif
int cpu_imx_get_desc(struct udevice *dev, char *buf, int size)
{
struct cpu_imx_platdata *plat = dev_get_platdata(dev);
int ret;
if (size < 100)
return -ENOSPC;
snprintf(buf, size, "NXP i.MX8%s Rev%s %s at %u MHz\n",
plat->type, plat->rev, plat->name, plat->freq_mhz);
ret = snprintf(buf, size, "NXP i.MX8%s Rev%s %s at %u MHz",
plat->type, plat->rev, plat->name, plat->freq_mhz);
if (IS_ENABLED(CONFIG_IMX_SCU_THERMAL)) {
buf = buf + ret;
size = size - ret;
ret = snprintf(buf, size, " at %dC", cpu_imx_get_temp());
}
snprintf(buf + ret, size - ret, "\n");
return 0;
}