[PATCH v1 3/4] arm: mach-k3: am62: provide more soc feature info accessors

[Max Krummenacher <max.oss.09@gmail.com>]

From: Max Krummenacher <max.krummenacher@toradex.com>

Add two functions, one which returns the SoC speed grade and one
which returns the SoC operating temperature range.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
---

 arch/arm/mach-k3/include/mach/am62_hardware.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/mach-k3/include/mach/am62_hardware.h b/arch/arm/mach-k3/include/mach/am62_hardware.h
index ea5bcf5d3de..54380f36e16 100644
--- a/arch/arm/mach-k3/include/mach/am62_hardware.h
+++ b/arch/arm/mach-k3/include/mach/am62_hardware.h
@@ -86,6 +86,22 @@ static inline int k3_get_core_nr(void)
 	return (full_devid & JTAG_DEV_CORE_NR_MASK) >> JTAG_DEV_CORE_NR_SHIFT;
 }
 
+static inline char k3_get_speed_grade(void)
+{
+	u32 full_devid = readl(CTRLMMR_WKUP_JTAG_DEVICE_ID);
+	u32 speed_grade = (full_devid & JTAG_DEV_SPEED_MASK) >>
+			   JTAG_DEV_SPEED_SHIFT;
+
+	return 'A' - 1 + speed_grade;
+}
+
+static inline int k3_get_temp_grade(void)
+{
+	u32 full_devid = readl(CTRLMMR_WKUP_JTAG_DEVICE_ID);
+
+	return (full_devid & JTAG_DEV_TEMP_MASK) >> JTAG_DEV_TEMP_SHIFT;
+}
+
 static inline int k3_has_pru(void)
 {
 	u32 full_devid = readl(CTRLMMR_WKUP_JTAG_DEVICE_ID);
-- 
2.42.0