CONFIG_ARM_GT_INITIAL_PRESCALER_VAL: ARM global timer initial prescaler value

General informations

The Linux kernel configuration item CONFIG_ARM_GT_INITIAL_PRESCALER_VAL:

• prompt: ARM global timer initial prescaler value
• type: int
• depends on: ( CONFIG_ARCH_ZYNQ ) && ( CONFIG_ARM_GLOBAL_TIMER )
• defined in drivers/clocksource/Kconfig
• found in Linux kernels: 5.14–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

When the ARM global timer initializes, its current rate is declared to the kernel and maintained forever. Should its parent clock change, the driver tries to fix the timer's internal prescaler. On some machs (i.e. Zynq) the initial prescaler value thus poses bounds about how much the parent clock is allowed to decrease or increase wrt the initial clock value. This affects CPU_FREQ max delta from the initial frequency.

Hardware

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This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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