[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 <tharvey at 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 <tharvey at 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