From 86e770b3e01f31ca8bf08ef60de4eaa842a35a50 Mon Sep 17 00:00:00 2001 From: Joao Paulo Goncalves Date: Thu, 8 Feb 2024 10:29:50 +0100 Subject: arm: mach-k3: am62: Get soc max temperature by grade MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit AM62x SoC is available in multiple temperature grade: - Commercial: 0° to 95° C - Industrial: -40° to 105° C - Automotive: -40° to 125° C Add a new function that returns the am62 max temperature value accordingly to its temperature grade in Celsius. Signed-off-by: Joao Paulo Goncalves Signed-off-by: Francesco Dolcini --- arch/arm/mach-k3/include/mach/am62_hardware.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm/mach-k3/include/mach/am62_hardware.h b/arch/arm/mach-k3/include/mach/am62_hardware.h index 4cf7778..264f8a4 100644 --- a/arch/arm/mach-k3/include/mach/am62_hardware.h +++ b/arch/arm/mach-k3/include/mach/am62_hardware.h @@ -42,6 +42,10 @@ #define JTAG_DEV_FEATURE_NO_PRU 0x4 +#define JTAG_DEV_TEMP_COMMERCIAL 0x3 +#define JTAG_DEV_TEMP_INDUSTRIAL 0x4 +#define JTAG_DEV_TEMP_AUTOMOTIVE 0x5 + #define CTRLMMR_MAIN_DEVSTAT (WKUP_CTRL_MMR0_BASE + 0x30) #define MAIN_DEVSTAT_PRIMARY_BOOTMODE_MASK GENMASK(6, 3) #define MAIN_DEVSTAT_PRIMARY_BOOTMODE_SHIFT 3 @@ -105,6 +109,19 @@ static inline int k3_get_temp_grade(void) return (full_devid & JTAG_DEV_TEMP_MASK) >> JTAG_DEV_TEMP_SHIFT; } +static inline int k3_get_max_temp(void) +{ + switch (k3_get_temp_grade()) { + case JTAG_DEV_TEMP_INDUSTRIAL: + return 105; + case JTAG_DEV_TEMP_AUTOMOTIVE: + return 125; + case JTAG_DEV_TEMP_COMMERCIAL: + default: + return 95; + } +} + static inline int k3_has_pru(void) { u32 full_devid = readl(CTRLMMR_WKUP_JTAG_DEVICE_ID); -- cgit v1.1