mx6: thermal: Check cpu temperature via thermal sensor
Add imx6 thermal device to mx6 soc file. Read the cpu temperature
using this device to access onchip thermal sensor.
Signed-off-by: Ye.Li <B37916@freescale.com>
Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
diff --git a/arch/arm/imx-common/cpu.c b/arch/arm/imx-common/cpu.c
index 24740b8..8b2dfca 100644
--- a/arch/arm/imx-common/cpu.c
+++ b/arch/arm/imx-common/cpu.c
@@ -17,6 +17,7 @@
#include <asm/arch/sys_proto.h>
#include <asm/arch/crm_regs.h>
#include <ipu_pixfmt.h>
+#include <thermal.h>
#ifdef CONFIG_FSL_ESDHC
#include <fsl_esdhc.h>
@@ -134,6 +135,11 @@
{
u32 cpurev;
+#if defined(CONFIG_MX6) && defined(CONFIG_IMX6_THERMAL)
+ struct udevice *thermal_dev;
+ int cpu_tmp, ret;
+#endif
+
cpurev = get_cpu_rev();
printf("CPU: Freescale i.MX%s rev%d.%d at %d MHz\n",
@@ -141,6 +147,21 @@
(cpurev & 0x000F0) >> 4,
(cpurev & 0x0000F) >> 0,
mxc_get_clock(MXC_ARM_CLK) / 1000000);
+
+#if defined(CONFIG_MX6) && defined(CONFIG_IMX6_THERMAL)
+ ret = uclass_get_device(UCLASS_THERMAL, 0, &thermal_dev);
+ if (!ret) {
+ ret = thermal_get_temp(thermal_dev, &cpu_tmp);
+
+ if (!ret)
+ printf("CPU: Temperature %d C\n", cpu_tmp);
+ else
+ printf("CPU: Temperature: invalid sensor data\n");
+ } else {
+ printf("CPU: Temperature: Can't find sensor device\n");
+ }
+#endif
+
printf("Reset cause: %s\n", get_reset_cause());
return 0;
}