linux-stable/arch/riscv/Kconfig.socs
Yangyu Chen 2672031b20 riscv: dts: Move BUILTIN_DTB_SOURCE to common Kconfig
The BUILTIN_DTB_SOURCE was only configured for K210 before. Since
SOC_BUILTIN_DTB_DECLARE was removed at commit d5805af9fe ("riscv: Fix
builtin DTB handling") from patch [1], the kernel cannot choose one of the
dtbs from then on and always take the first one dtb to use. Then, another
commit 0ddd7eaffa ("riscv: Fix BUILTIN_DTB for sifive and microchip soc")
from patch [2] supports BUILTIN_DTB_SOURCE for other SoCs. However, this
feature will only work if the Kconfig we use links the dtb we expected in
the first place as mentioned in the thread [3]. Thus, a config
BUILTIN_DTB_SOURCE is needed for all SoCs to choose one dtb to use.

For some considerations, this patch also removes default y if XIP_KERNEL
for BUILTIN_DTB, as this requires setting a proper dtb to use on the
BUILTIN_DTB_SOURCE, else the kernel with XIP but does not set
BUILTIN_DTB_SOURCE or unselect BUILTIN_DTB will not boot.

Also, this patch removes the default dtb string for k210 from Kconfig to
nommu_k210_defconfig and nommu_k210_sdcard_defconfig to avoid complex
Kconfig settings for other SoCs in the future.

[1] https://lore.kernel.org/linux-riscv/20201208073355.40828-5-damien.lemoal@wdc.com/
[2] https://lore.kernel.org/linux-riscv/20210604120639.1447869-1-alex@ghiti.fr/
[3] https://lore.kernel.org/linux-riscv/CAK7LNATt_56mO2Le4v4EnPnAfd3gC8S_Sm5-GCsfa=qXy=8Lrg@mail.gmail.com/

Signed-off-by: Yangyu Chen <cyy@cyyself.name>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-03-06 00:08:32 +00:00

87 lines
1.9 KiB
Text

menu "SoC selection"
config ARCH_MICROCHIP_POLARFIRE
def_bool SOC_MICROCHIP_POLARFIRE
config SOC_MICROCHIP_POLARFIRE
bool "Microchip PolarFire SoCs"
help
This enables support for Microchip PolarFire SoC platforms.
config ARCH_RENESAS
bool "Renesas RISC-V SoCs"
help
This enables support for the RISC-V based Renesas SoCs.
config ARCH_SIFIVE
def_bool SOC_SIFIVE
config SOC_SIFIVE
bool "SiFive SoCs"
select ERRATA_SIFIVE if !XIP_KERNEL
help
This enables support for SiFive SoC platform hardware.
config ARCH_SOPHGO
bool "Sophgo SoCs"
help
This enables support for Sophgo SoC platform hardware.
config ARCH_STARFIVE
def_bool SOC_STARFIVE
config SOC_STARFIVE
bool "StarFive SoCs"
select PINCTRL
select RESET_CONTROLLER
select ARM_AMBA
help
This enables support for StarFive SoC platform hardware.
config ARCH_SUNXI
bool "Allwinner sun20i SoCs"
depends on MMU && !XIP_KERNEL
select ERRATA_THEAD
select SUN4I_TIMER
help
This enables support for Allwinner sun20i platform hardware,
including boards based on the D1 and D1s SoCs.
config ARCH_THEAD
bool "T-HEAD RISC-V SoCs"
depends on MMU && !XIP_KERNEL
select ERRATA_THEAD
help
This enables support for the RISC-V based T-HEAD SoCs.
config ARCH_VIRT
def_bool SOC_VIRT
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 PM_GENERIC_DOMAINS if PM
select PM_GENERIC_DOMAINS_OF if PM && OF
select RISCV_SBI_CPUIDLE if CPU_IDLE && RISCV_SBI
help
This enables support for QEMU Virt Machine.
config ARCH_CANAAN
def_bool SOC_CANAAN
config SOC_CANAAN
bool "Canaan Kendryte K210 SoC"
depends on !MMU
select CLINT_TIMER if RISCV_M_MODE
select ARCH_HAS_RESET_CONTROLLER
select PINCTRL
select COMMON_CLK
help
This enables support for Canaan Kendryte K210 SoC platform hardware.
endmenu # "SoC selection"