https://github.com/torvalds/linux
Tip revision: f4d51dffc6c01a9e94650d95ce0104964f8ae822 authored by Linus Torvalds on 07 September 2020, 00:11:40 UTC
Linux 5.9-rc4
Linux 5.9-rc4
Tip revision: f4d51df
Kconfig
# SPDX-License-Identifier: GPL-2.0
menuconfig ARCH_VEXPRESS
bool "ARM Ltd. Versatile Express family"
depends on ARCH_MULTI_V7
select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
select ARM_GIC
select ARM_GLOBAL_TIMER
select ARM_TIMER_SP804
select GPIOLIB
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
select HAVE_PATA_PLATFORM
select ICST
select NO_IOPORT_MAP
select PLAT_VERSATILE
select POWER_RESET
select POWER_RESET_VEXPRESS
select POWER_SUPPLY
select REGULATOR if MMC_ARMMMCI
select REGULATOR_FIXED_VOLTAGE if REGULATOR
select VEXPRESS_CONFIG
help
This option enables support for systems using Cortex processor based
ARM core and logic (FPGA) tiles on the Versatile Express motherboard,
for example:
- CoreTile Express A5x2 (V2P-CA5s)
- CoreTile Express A9x4 (V2P-CA9)
- CoreTile Express A15x2 (V2P-CA15)
- LogicTile Express 13MG (V2F-2XV6) with A5, A7, A9 or A15 SMMs
(Soft Macrocell Models)
- Versatile Express RTSMs (Models)
You must boot using a Flattened Device Tree in order to use these
platforms. The traditional (ATAGs) boot method is not usable on
these boards with this option.
if ARCH_VEXPRESS
config ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA
bool "Enable A5 and A9 only errata work-arounds"
default y
select ARM_ERRATA_643719 if SMP
select ARM_ERRATA_720789
select PL310_ERRATA_753970 if CACHE_L2X0
help
Provides common dependencies for Versatile Express platforms
based on Cortex-A5 and Cortex-A9 processors. In order to
build a working kernel, you must also enable relevant core
tile support or Flattened Device Tree based support options.
config ARCH_VEXPRESS_DCSCB
bool "Dual Cluster System Control Block (DCSCB) support"
depends on MCPM
select ARM_CCI400_PORT_CTRL
help
Support for the Dual Cluster System Configuration Block (DCSCB).
This is needed to provide CPU and cluster power management
on RTSM implementing big.LITTLE.
config ARCH_VEXPRESS_SPC
bool "Versatile Express Serial Power Controller (SPC)"
select PM_OPP
help
The TC2 (A15x2 A7x3) versatile express core tile integrates a logic
block called Serial Power Controller (SPC) that provides the interface
between the dual cluster test-chip and the M3 microcontroller that
carries out power management.
config ARCH_VEXPRESS_TC2_PM
bool "Versatile Express TC2 power management"
depends on MCPM
select ARM_CCI400_PORT_CTRL
select ARCH_VEXPRESS_SPC
select ARM_CPU_SUSPEND
help
Support for CPU and cluster power management on Versatile Express
with a TC2 (A15x2 A7x3) big.LITTLE core tile.
endif