Read the temperature when print cpu inforation.
Signed-off-by: Peng Fan peng.fan@nxp.com ---
V2: Fix build when IMX_SCU_THERMAL not defined.
arch/arm/mach-imx/imx8/cpu.c | 40 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 38 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c index 2c425357b5..882a82109d 100644 --- a/arch/arm/mach-imx/imx8/cpu.c +++ b/arch/arm/mach-imx/imx8/cpu.c @@ -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; }