kernel_optimize_test/arch/riscv/Kconfig.socs
Anup Patel 2bc3fc877a
RISC-V: Remove CLINT related code from timer and arch
Right now the RISC-V timer driver is convoluted to support:
1. Linux RISC-V S-mode (with MMU) where it will use TIME CSR for
   clocksource and SBI timer calls for clockevent device.
2. Linux RISC-V M-mode (without MMU) where it will use CLINT MMIO
   counter register for clocksource and CLINT MMIO compare register
   for clockevent device.

We now have a separate CLINT timer driver which also provide CLINT
based IPI operations so let's remove CLINT MMIO related code from
arch/riscv directory and RISC-V timer driver.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Tested-by: Emil Renner Berhing <kernel@esmil.dk>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-08-20 10:58:13 -07:00

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menu "SoC selection"
config SOC_SIFIVE
bool "SiFive SoCs"
select SERIAL_SIFIVE if TTY
select SERIAL_SIFIVE_CONSOLE if TTY
select CLK_SIFIVE
select CLK_SIFIVE_FU540_PRCI
select SIFIVE_PLIC
help
This enables support for SiFive SoC platform hardware.
config SOC_VIRT
bool "QEMU Virt Machine"
select CLINT_TIMER if RISCV_M_MODE
select POWER_RESET
select POWER_RESET_SYSCON
select POWER_RESET_SYSCON_POWEROFF
select GOLDFISH
select RTC_DRV_GOLDFISH if RTC_CLASS
select SIFIVE_PLIC
help
This enables support for QEMU Virt Machine.
config SOC_KENDRYTE
bool "Kendryte K210 SoC"
depends on !MMU
select CLINT_TIMER if RISCV_M_MODE
select SERIAL_SIFIVE if TTY
select SERIAL_SIFIVE_CONSOLE if TTY
select SIFIVE_PLIC
help
This enables support for Kendryte K210 SoC platform hardware.
config SOC_KENDRYTE_K210_DTB
def_bool y
depends on SOC_KENDRYTE_K210_DTB_BUILTIN
config SOC_KENDRYTE_K210_DTB_BUILTIN
bool "Builtin device tree for the Kendryte K210"
depends on SOC_KENDRYTE
default y
select OF
select BUILTIN_DTB
select SOC_KENDRYTE_K210_DTB
help
Builds a device tree for the Kendryte K210 into the Linux image.
This option should be selected if no bootloader is being used.
If unsure, say Y.
endmenu