[U-Boot] [PATCH v2 3/4] imx: mx6: add display of CPU temperature grade in print_cpuinfo()

[Tim Harvey]

When CONFIG_IMX6_THERMAL is defined print the CPU temperature grade info
along with the current temperature.

Before:
 CPU:   Temperature 42 C

After:
 CPU:   Automotive temperature grade (-40C to 125C) at 42C
 CPU:   Industiral temperature grade (-40C to 105C) at 42C
 CPU:   Extended Commercial temperature grade (-20C to 105C) at 42C

Signed-off-by: Tim Harvey <thar...@gateworks.com>
---
v2:
 - moved display of CPU temperature grade to own patch and combined with the
   current temperature from the thermal sensor driver
 - add example output to description

Signed-off-by: Tim Harvey <thar...@gateworks.com>
---
 arch/arm/imx-common/cpu.c | 27 +++++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/arch/arm/imx-common/cpu.c b/arch/arm/imx-common/cpu.c
index 6b20482..f1b49bb 100644
--- a/arch/arm/imx-common/cpu.c
+++ b/arch/arm/imx-common/cpu.c
@@ -16,6 +16,7 @@
 #include <asm/arch/clock.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/crm_regs.h>
+#include <imx_thermal.h>
 #include <ipu_pixfmt.h>
 #include <thermal.h>
 #include <sata.h>
@@ -146,7 +147,7 @@ int print_cpuinfo(void)
 
 #if defined(CONFIG_MX6) && defined(CONFIG_IMX6_THERMAL)
        struct udevice *thermal_dev;
-       int cpu_tmp, ret;
+       int cpu_tmp, minc, maxc, ret;
 #endif
 
        cpurev = get_cpu_rev();
@@ -172,16 +173,34 @@ int print_cpuinfo(void)
 #endif
 
 #if defined(CONFIG_MX6) && defined(CONFIG_IMX6_THERMAL)
+       puts("CPU:   ");
+       if (!is_cpu_type(MXC_CPU_MX6SX)) {
+               switch (get_cpu_temp_grade(&minc, &maxc)) {
+               case TEMP_AUTOMOTIVE:
+                       puts("Automotive temperature grade ");
+                       break;
+               case TEMP_INDUSTRIAL:
+                       puts("Industrial temperature grade ");
+                       break;
+               case TEMP_EXTCOMMERCIAL:
+                       puts("Extended Commercial temperature grade ");
+                       break;
+               default:
+                       puts("Commercial temperature grade ");
+                       break;
+               }
+               printf("(%dC to %dC)", minc, maxc);
+       }
        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);
+                       printf(" at %dC\n", cpu_tmp);
                else
-                       printf("CPU:   Temperature: invalid sensor data\n");
+                       puts(" - invalid sensor data\n");
        } else {
-               printf("CPU:   Temperature: Can't find sensor device\n");
+               puts(" - invalid sensor device\n");
        }
 #endif
 
-- 
1.9.1

_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot