[PATCH 2/3] cpufreq: ti-cpufreq: add support for AM62L3 SoC
From: Dhruva Gole <hidden>
Date: 2026-01-16 09:02:02
Also in:
linux-devicetree, linux-pm, lkml
Subsystem:
cpu frequency scaling framework, the rest · Maintainers:
"Rafael J. Wysocki", Viresh Kumar, Linus Torvalds
Add CPUFreq support for the AM62L3 SoC with the appropriate AM62L3 speed grade constants according to the datasheet [1]. This follows the same architecture-specific implementation pattern as other TI SoCs in the AM6x family. [1] https://www.ti.com/lit/pdf/SPRSPA1 Signed-off-by: Dhruva Gole <redacted> --- drivers/cpufreq/ti-cpufreq.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+)
diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index 6ee76f5fe9c567b0b88797ddb51764a2a5606b16..8d8fdb068dcdc2caa0b656405f38a072c0700f71 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c@@ -48,6 +48,12 @@ #define AM625_SUPPORT_S_MPU_OPP BIT(1) #define AM625_SUPPORT_T_MPU_OPP BIT(2) +#define AM62L3_EFUSE_E_MPU_OPP 5 +#define AM62L3_EFUSE_O_MPU_OPP 15 + +#define AM62L3_SUPPORT_E_MPU_OPP BIT(0) +#define AM62L3_SUPPORT_O_MPU_OPP BIT(1) + enum { AM62A7_EFUSE_M_MPU_OPP = 13, AM62A7_EFUSE_N_MPU_OPP,
@@ -213,6 +219,22 @@ static unsigned long am625_efuse_xlate(struct ti_cpufreq_data *opp_data, return calculated_efuse; } +static unsigned long am62l3_efuse_xlate(struct ti_cpufreq_data *opp_data, + unsigned long efuse) +{ + unsigned long calculated_efuse = AM62L3_SUPPORT_E_MPU_OPP; + + switch (efuse) { + case AM62L3_EFUSE_O_MPU_OPP: + calculated_efuse |= AM62L3_SUPPORT_O_MPU_OPP; + fallthrough; + case AM62L3_EFUSE_E_MPU_OPP: + calculated_efuse |= AM62L3_SUPPORT_E_MPU_OPP; + } + + return calculated_efuse; +} + static struct ti_cpufreq_soc_data am3x_soc_data = { .efuse_xlate = amx3_efuse_xlate, .efuse_fallback = AM33XX_800M_ARM_MPU_MAX_FREQ,
@@ -315,6 +337,7 @@ static const struct soc_device_attribute k3_cpufreq_soc[] = { { .family = "AM62AX", }, { .family = "AM62PX", }, { .family = "AM62DX", }, + { .family = "AM62LX", }, { /* sentinel */ } };
@@ -327,6 +350,14 @@ static struct ti_cpufreq_soc_data am625_soc_data = { .quirks = TI_QUIRK_SYSCON_IS_SINGLE_REG, }; +static struct ti_cpufreq_soc_data am62l3_soc_data = { + .efuse_xlate = am62l3_efuse_xlate, + .efuse_offset = 0x0, + .efuse_mask = 0x07c0, + .efuse_shift = 0x6, + .multi_regulator = false, +}; + static struct ti_cpufreq_soc_data am62a7_soc_data = { .efuse_xlate = am62a7_efuse_xlate, .efuse_offset = 0x0,
@@ -463,6 +494,7 @@ static const struct of_device_id ti_cpufreq_of_match[] __maybe_unused = { { .compatible = "ti,am625", .data = &am625_soc_data, }, { .compatible = "ti,am62a7", .data = &am62a7_soc_data, }, { .compatible = "ti,am62d2", .data = &am62a7_soc_data, }, + { .compatible = "ti,am62l3", .data = &am62l3_soc_data, }, { .compatible = "ti,am62p5", .data = &am62p5_soc_data, }, /* legacy */ { .compatible = "ti,omap3430", .data = &omap34xx_soc_data, },
--
2.34.1