diff options
| author | Ye Li <ye.li@nxp.com> | 2017-08-16 08:41:50 -0500 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2017-11-03 02:37:13 +0800 |
| commit | 40a60b20276c45373a5337664943a3e14e19bdda (patch) | |
| tree | c9507a022595d8b7e7f395606cd14cb48a097e85 /arch | |
| parent | f4f8dbcb125fdf419917e77ebbca875bca330b4b (diff) | |
MLK-16208-3 imx8qm/qxp: Enable the CPU thermal sensor to get temperature
Add "u-boot,dm-pre-reloc" to thermal node in QM and QXP DTSi files, and
enable the thermal driver in relevant build targets.
In SoC level, will get and print the CPU temperature at booting.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv8/imx8/cpu.c | 41 | ||||
| -rw-r--r-- | arch/arm/dts/fsl-imx8qm.dtsi | 1 | ||||
| -rw-r--r-- | arch/arm/dts/fsl-imx8qxp.dtsi | 1 |
3 files changed, 42 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv8/imx8/cpu.c b/arch/arm/cpu/armv8/imx8/cpu.c index 57f95cd658..2b26c0863e 100644 --- a/arch/arm/cpu/armv8/imx8/cpu.c +++ b/arch/arm/cpu/armv8/imx8/cpu.c @@ -23,6 +23,8 @@ #include <libfdt.h> #include <fdt_support.h> #include <fdtdec.h> +#include <thermal.h> +#include <asm/arch/cpu.h> DECLARE_GLOBAL_DATA_PTR; @@ -71,16 +73,53 @@ const char *get_imx8_rev(u32 rev) } } +const char *get_core_name(void) +{ + if (is_cortex_a53()) + return "A53"; + else if (is_cortex_a35()) + return "A35"; + else if (is_cortex_a72()) + return "A72"; + else + return "?"; +} + + int print_cpuinfo(void) { u32 cpurev; + cpurev = get_cpu_rev(); - printf("CPU: Freescale i.MX%s rev%s at %d MHz\n", + printf("CPU: Freescale i.MX%s rev%s %s at %d MHz", get_imx8_type((cpurev & 0xFF000) >> 12), get_imx8_rev((cpurev & 0xFFF)), + get_core_name(), mxc_get_clock(MXC_ARM_CLK) / 1000000); +#if defined(CONFIG_IMX_SC_THERMAL) + struct udevice *thermal_dev; + int cpu_tmp, ret; + + if (is_imx8qm() && is_cortex_a72()) + ret = uclass_get_device_by_name(UCLASS_THERMAL, "cpu-thermal1", &thermal_dev); + else + ret = uclass_get_device_by_name(UCLASS_THERMAL, "cpu-thermal0", &thermal_dev); + + if (!ret) { + ret = thermal_get_temp(thermal_dev, &cpu_tmp); + + if (!ret) + printf(" at %dC", cpu_tmp); + else + debug(" - invalid sensor data"); + } else { + debug(" - invalid sensor device"); + } +#endif + + printf("\n"); return 0; } #endif diff --git a/arch/arm/dts/fsl-imx8qm.dtsi b/arch/arm/dts/fsl-imx8qm.dtsi index d43f10ba1d..fb2ee47b44 100644 --- a/arch/arm/dts/fsl-imx8qm.dtsi +++ b/arch/arm/dts/fsl-imx8qm.dtsi @@ -972,6 +972,7 @@ tsens: thermal-sensor { compatible = "nxp,imx8qm-sc-tsens"; + u-boot,dm-pre-reloc; /* number of the temp sensor on the chip */ tsens-num = <5>; #thermal-sensor-cells = <1>; diff --git a/arch/arm/dts/fsl-imx8qxp.dtsi b/arch/arm/dts/fsl-imx8qxp.dtsi index 99a7941786..81faf29cc1 100644 --- a/arch/arm/dts/fsl-imx8qxp.dtsi +++ b/arch/arm/dts/fsl-imx8qxp.dtsi @@ -823,6 +823,7 @@ tsens: thermal-sensor { compatible = "nxp,imx8qxp-sc-tsens"; + u-boot,dm-pre-reloc; /* number of the temp sensor on the chip */ tsens-num = <1>; #thermal-sensor-cells = <1>; |