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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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c5d58e9e79
This patch add a clockevent/clocksource using PWM Timer for Loongson1B, which is based on earlier work by Tang, Haifeng. Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8025/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
62 lines
1.3 KiB
Plaintext
62 lines
1.3 KiB
Plaintext
if MACH_LOONGSON1
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choice
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prompt "Machine Type"
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config LOONGSON1_LS1B
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bool "Loongson LS1B board"
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select CEVT_R4K if !MIPS_EXTERNAL_TIMER
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select CSRC_R4K if !MIPS_EXTERNAL_TIMER
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select SYS_HAS_CPU_LOONGSON1B
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select DMA_NONCOHERENT
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select BOOT_ELF32
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select IRQ_CPU
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_LITTLE_ENDIAN
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select SYS_SUPPORTS_HIGHMEM
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select SYS_SUPPORTS_MIPS16
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select SYS_HAS_EARLY_PRINTK
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select USE_GENERIC_EARLY_PRINTK_8250
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select COMMON_CLK
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endchoice
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menuconfig CEVT_CSRC_LS1X
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bool "Use PWM Timer for clockevent/clocksource"
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select MIPS_EXTERNAL_TIMER
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depends on CPU_LOONGSON1
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help
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This option changes the default clockevent/clocksource to PWM Timer,
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and is required by Loongson1 CPUFreq support.
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If unsure, say N.
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choice
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prompt "Select clockevent/clocksource"
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depends on CEVT_CSRC_LS1X
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default TIMER_USE_PWM0
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config TIMER_USE_PWM0
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bool "Use PWM Timer 0"
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help
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Use PWM Timer 0 as the default clockevent/clocksourcer.
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config TIMER_USE_PWM1
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bool "Use PWM Timer 1"
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help
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Use PWM Timer 1 as the default clockevent/clocksourcer.
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config TIMER_USE_PWM2
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bool "Use PWM Timer 2"
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help
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Use PWM Timer 2 as the default clockevent/clocksourcer.
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config TIMER_USE_PWM3
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bool "Use PWM Timer 3"
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help
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Use PWM Timer 3 as the default clockevent/clocksourcer.
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endchoice
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endif # MACH_LOONGSON1
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