linux/arch/unicore32/Kconfig
Stephen Boyd bbd7ffdbef clk: Allow the common clk framework to be selectable
Enable build testing and configuration control of the common clk
framework so that more code coverage and testing can be done on the
common clk framework across various architectures. This also nicely
removes the requirement that architectures must select the framework
when they don't use it in architecture code.

There's one snag with doing this, and that's making sure that randconfig
builds don't select this option when some architecture or platform
implements 'struct clk' outside of the common clk framework. Introduce a
new config option 'HAVE_LEGACY_CLK' to indicate those platforms that
haven't migrated to the common clk framework and therefore shouldn't be
allowed to select this new config option. Also add a note that we hope
one day to remove this config entirely.

Based on a patch by Mark Brown <broonie@kernel.org>.

Cc: Mark Brown <broonie@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: <linux-mips@vger.kernel.org>
Cc: <linux-c6x-dev@linux-c6x.org>
Cc: <linux-m68k@lists.linux-m68k.org>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: <linux-sh@vger.kernel.org>
Link: https://lore.kernel.org/r/1470915049-15249-1-git-send-email-broonie@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20200409064416.83340-8-sboyd@kernel.org
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2020-05-05 12:34:11 -07:00

201 lines
3.6 KiB
Plaintext

# SPDX-License-Identifier: GPL-2.0
config UNICORE32
def_bool y
select ARCH_32BIT_OFF_T
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_KEEPINITRD
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_BZIP2
select GENERIC_ATOMIC64
select HAVE_KERNEL_LZO
select HAVE_KERNEL_LZMA
select HAVE_PCI
select VIRT_TO_BUS
select ARCH_HAVE_CUSTOM_GPIO_H
select GENERIC_FIND_FIRST_BIT
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
select ARCH_WANT_FRAME_POINTERS
select GENERIC_IOMAP
select MODULES_USE_ELF_REL
select NEED_DMA_MAP_STATE
select MMU_GATHER_NO_RANGE if MMU
help
UniCore-32 is 32-bit Instruction Set Architecture,
including a series of low-power-consumption RISC chip
designs licensed by PKUnity Ltd.
Please see web page at <http://www.pkunity.com/>.
config GENERIC_CSUM
def_bool y
config NO_IOPORT_MAP
bool
config STACKTRACE_SUPPORT
def_bool y
config LOCKDEP_SUPPORT
def_bool y
config ARCH_HAS_ILOG2_U32
bool
config ARCH_HAS_ILOG2_U64
bool
config GENERIC_HWEIGHT
def_bool y
config GENERIC_CALIBRATE_DELAY
def_bool y
config ARCH_MAY_HAVE_PC_FDC
bool
config ZONE_DMA
def_bool y
menu "System Type"
config MMU
def_bool y
config ARCH_FPGA
bool
config ARCH_PUV3
def_bool y
select CPU_UCV2
select GENERIC_CLOCKEVENTS
select HAVE_LEGACY_CLK
select GPIOLIB
# CONFIGs for ARCH_PUV3
if ARCH_PUV3
choice
prompt "Board Selection"
default PUV3_DB0913
config PUV3_FPGA_DLX200
select ARCH_FPGA
bool "FPGA board"
config PUV3_DB0913
bool "DEBUG board (0913)"
config PUV3_NB0916
bool "NetBook board (0916)"
select PWM
select PWM_PUV3
config PUV3_SMW0919
bool "Security Mini-Workstation board (0919)"
endchoice
config PUV3_PM
def_bool y if !ARCH_FPGA
endif
source "arch/unicore32/mm/Kconfig"
comment "Floating point support"
config UNICORE_FPU_F64
def_bool y if !ARCH_FPGA
endmenu
menu "Kernel Features"
source "kernel/Kconfig.hz"
config LEDS
def_bool y
depends on GPIOLIB
config ALIGNMENT_TRAP
def_bool y
help
Unicore processors can not fetch/store information which is not
naturally aligned on the bus, i.e., a 4 byte fetch must start at an
address divisible by 4. On 32-bit Unicore processors, these non-aligned
fetch/store instructions will be emulated in software if you say
here, which has a severe performance impact. This is necessary for
correct operation of some network protocols. With an IP-only
configuration it is safe to say N, otherwise say Y.
endmenu
menu "Boot options"
config CMDLINE
string "Default kernel command string"
default ""
config CMDLINE_FORCE
bool "Always use the default kernel command string"
depends on CMDLINE != ""
help
Always use the default kernel command string, even if the boot
loader passes other arguments to the kernel.
This is useful if you cannot or don't want to change the
command-line options your boot loader passes to the kernel.
If unsure, say N.
endmenu
menu "Power management options"
source "kernel/power/Kconfig"
source "drivers/cpufreq/Kconfig"
config ARCH_SUSPEND_POSSIBLE
def_bool y if !ARCH_FPGA
config ARCH_HIBERNATION_POSSIBLE
def_bool y if !ARCH_FPGA
endmenu
if ARCH_PUV3
config PUV3_GPIO
bool
depends on !ARCH_FPGA
select GPIO_SYSFS
default y
if PUV3_NB0916
menu "PKUnity NetBook-0916 Features"
config I2C_BATTERY_BQ27200
tristate "I2C Battery BQ27200 Support"
select I2C_PUV3
select POWER_SUPPLY
select BATTERY_BQ27XXX
config I2C_EEPROM_AT24
tristate "I2C EEPROMs AT24 support"
select I2C_PUV3
select EEPROM_AT24
config LCD_BACKLIGHT
tristate "LCD Backlight support"
select BACKLIGHT_PWM
endmenu
endif
endif