imx: imx8_cpu: print cpu grade temperature

Support print out cpu grade temperature

Signed-off-by: Peng Fan <peng.fan@nxp.com>

diff --git a/drivers/cpu/imx8_cpu.c b/drivers/cpu/imx8_cpu.c
index 4da7a99bf309ff61292acf0ab022782c22f75672..304d5e59013ec00fca31cfe88327068330b60f37 100644 (file)
--- a/drivers/cpu/imx8_cpu.c
+++ b/drivers/cpu/imx8_cpu.c
@@ -13,6 +13,7 @@
 #include <asm/arch/sys_proto.h>
 #include <asm/arch-imx/cpu.h>
 #include <asm/armv8/cpu.h>
+#include <imx_thermal.h>
 #include <linux/bitops.h>
 #include <linux/clk-provider.h>
 
@@ -121,10 +122,17 @@ static int cpu_imx_get_temp(struct cpu_imx_plat *plat)
 }
 #endif
 
+__weak u32 get_cpu_temp_grade(int *minc, int *maxc)
+{
+       return 0;
+}
+
 static int cpu_imx_get_desc(const struct udevice *dev, char *buf, int size)
 {
        struct cpu_imx_plat *plat = dev_get_plat(dev);
+       const char *grade;
        int ret, temp;
+       int minc, maxc;
 
        if (size < 100)
                return -ENOSPC;
@@ -132,6 +140,27 @@ static int cpu_imx_get_desc(const struct udevice *dev, char *buf, int size)
        ret = snprintf(buf, size, "NXP i.MX%s Rev%s %s at %u MHz",
                       plat->type, plat->rev, plat->name, plat->freq_mhz);
 
+       if (IS_ENABLED(CONFIG_IMX9)) {
+               switch (get_cpu_temp_grade(&minc, &maxc)) {
+               case TEMP_AUTOMOTIVE:
+                       grade = "Automotive temperature grade ";
+                       break;
+               case TEMP_INDUSTRIAL:
+                       grade = "Industrial temperature grade ";
+                       break;
+               case TEMP_EXTCOMMERCIAL:
+                       grade = "Extended Consumer temperature grade ";
+                       break;
+               default:
+                       grade = "Consumer temperature grade ";
+                       break;
+               }
+
+               buf = buf + ret;
+               size = size - ret;
+               ret = snprintf(buf, size, "\nCPU:   %s (%dC to %dC)", grade, minc, maxc);
+       }
+
        if (IS_ENABLED(CONFIG_DM_THERMAL)) {
                temp = cpu_imx_get_temp(plat);
                buf = buf + ret;