ARM: s3c: move into a common directory

s3c24xx and s3c64xx have a lot in common, but are split across three
separate directories, which makes the interaction of the header files
more complicated than necessary.

Move all three directories into a new mach-s3c, with a minimal
set of changes to each file.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[krzk: Rebase, add s3c24xx and s3c64xx suffix to several files, add SPDX
       headers to new files, remove plat-samsung from MAINTAINERS]
Co-developed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
https://lore.kernel.org/r/20200806182059.2431-39-krzk@kernel.org

1 files changed, 250 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c/Kconfig b/arch/arm/mach-s3c/Kconfig
new file mode 100644
index 000000000000..25606e668cf9
--- /dev/null
+++ b/arch/arm/mach-s3c/Kconfig
@@ -0,0 +1,250 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright 2009 Simtec Electronics
+
+source "arch/arm/mach-s3c/Kconfig.s3c24xx"
+source "arch/arm/mach-s3c/Kconfig.s3c64xx"
+
+config PLAT_SAMSUNG
+	bool
+	depends on PLAT_S3C24XX || ARCH_S3C64XX
+	default y
+	select GENERIC_IRQ_CHIP
+	select NO_IOPORT_MAP
+	select SOC_SAMSUNG
+	help
+	  Base platform code for all Samsung SoC based systems
+
+config SAMSUNG_PM
+	bool
+	depends on PM && (PLAT_S3C24XX || ARCH_S3C64XX)
+	default y
+	help
+	  Base platform power management code for samsung code
+
+if PLAT_SAMSUNG
+menu "Samsung Common options"
+
+# boot configurations
+
+comment "Boot options"
+
+config S3C_LOWLEVEL_UART_PORT
+	int "S3C UART to use for low-level messages"
+	depends on ARCH_S3C64XX
+	default 0
+	help
+	  Choice of which UART port to use for the low-level messages,
+	  such as the `Uncompressing...` at start time. The value of
+	  this configuration should be between zero and two. The port
+	  must have been initialised by the boot-loader before use.
+
+config SAMSUNG_ATAGS
+	def_bool n
+	depends on ATAGS
+	help
+	   This option enables ATAGS based boot support code for
+	   Samsung platforms, including static platform devices, legacy
+	   clock, timer and interrupt initialization, etc.
+
+	   Platforms that support only DT based boot need not to select
+	   this option.
+
+if SAMSUNG_ATAGS
+
+config S3C_GPIO_SPACE
+	int "Space between gpio banks"
+	default 0
+	help
+	  Add a number of spare GPIO entries between each bank for debugging
+	  purposes. This allows any problems where an counter overflows from
+	  one bank to another to be caught, at the expense of using a little
+	  more memory.
+
+config S3C_GPIO_TRACK
+	bool
+	help
+	  Internal configuration option to enable the s3c specific gpio
+	  chip tracking if the platform requires it.
+
+# ADC driver
+
+config S3C_ADC
+	bool "ADC common driver support"
+	depends on !ARCH_MULTIPLATFORM
+	help
+	  Core support for the ADC block found in the Samsung SoC systems
+	  for drivers such as the touchscreen and hwmon to use to share
+	  this resource.
+
+# device definitions to compile in
+
+config S3C_DEV_HSMMC
+	bool
+	help
+	  Compile in platform device definitions for HSMMC code
+
+config S3C_DEV_HSMMC1
+	bool
+	help
+	  Compile in platform device definitions for HSMMC channel 1
+
+config S3C_DEV_HSMMC2
+	bool
+	help
+	  Compile in platform device definitions for HSMMC channel 2
+
+config S3C_DEV_HSMMC3
+	bool
+	help
+	  Compile in platform device definitions for HSMMC channel 3
+
+config S3C_DEV_HWMON
+	bool
+	help
+	    Compile in platform device definitions for HWMON
+
+config S3C_DEV_I2C1
+	bool
+	help
+	  Compile in platform device definitions for I2C channel 1
+
+config S3C_DEV_I2C2
+	bool
+	help
+	  Compile in platform device definitions for I2C channel 2
+
+config S3C_DEV_I2C3
+	bool
+	help
+	  Compile in platform device definition for I2C controller 3
+
+config S3C_DEV_I2C4
+	bool
+	help
+	  Compile in platform device definition for I2C controller 4
+
+config S3C_DEV_I2C5
+	bool
+	help
+	  Compile in platform device definition for I2C controller 5
+
+config S3C_DEV_I2C6
+	bool
+	help
+	  Compile in platform device definition for I2C controller 6
+
+config S3C_DEV_I2C7
+	bool
+	help
+	  Compile in platform device definition for I2C controller 7
+
+config S3C_DEV_FB
+	bool
+	help
+	  Compile in platform device definition for framebuffer
+
+config S3C_DEV_USB_HOST
+	bool
+	help
+	  Compile in platform device definition for USB host.
+
+config S3C_DEV_USB_HSOTG
+	bool
+	help
+	  Compile in platform device definition for USB high-speed OtG
+
+config S3C_DEV_WDT
+	bool
+	default y if ARCH_S3C24XX
+	help
+	  Compile in platform device definition for Watchdog Timer
+
+config S3C_DEV_NAND
+	bool
+	help
+	  Compile in platform device definition for NAND controller
+
+config S3C_DEV_ONENAND
+	bool
+	help
+	  Compile in platform device definition for OneNAND controller
+
+config S3C_DEV_RTC
+	bool
+	help
+	  Compile in platform device definition for RTC
+
+config SAMSUNG_DEV_ADC
+	bool
+	help
+	  Compile in platform device definition for ADC controller
+
+config SAMSUNG_DEV_IDE
+	bool
+	help
+	  Compile in platform device definitions for IDE
+
+config S3C64XX_DEV_SPI0
+	bool
+	help
+	  Compile in platform device definitions for S3C64XX's type
+	  SPI controller 0
+
+config S3C64XX_DEV_SPI1
+	bool
+	help
+	  Compile in platform device definitions for S3C64XX's type
+	  SPI controller 1
+
+config S3C64XX_DEV_SPI2
+	bool
+	help
+	  Compile in platform device definitions for S3C64XX's type
+	  SPI controller 2
+
+config SAMSUNG_DEV_TS
+	bool
+	help
+	    Common in platform device definitions for touchscreen device
+
+config SAMSUNG_DEV_KEYPAD
+	bool
+	help
+	  Compile in platform device definitions for keypad
+
+config SAMSUNG_DEV_PWM
+	bool
+	default y if ARCH_S3C24XX
+	help
+	  Compile in platform device definition for PWM Timer
+
+config S3C24XX_PWM
+	bool "PWM device support"
+	select PWM
+	select PWM_SAMSUNG
+	help
+	  Support for exporting the PWM timer blocks via the pwm device
+	  system
+
+config GPIO_SAMSUNG
+	def_bool y
+
+config SAMSUNG_PM_GPIO
+	bool
+	default y if GPIO_SAMSUNG && PM
+	help
+	  Include legacy GPIO power management code for platforms not using
+	  pinctrl-samsung driver.
+endif
+
+config SAMSUNG_WAKEMASK
+	bool
+	depends on PM
+	help
+	  Compile support for wakeup-mask controls found on the S3C6400
+	  and above. This code allows a set of interrupt to wakeup-mask
+	  mappings. See <plat/wakeup-mask.h>
+
+endmenu
+endif