#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#

comment "LPC31xx Configuration Options"

choice
	prompt "LPC31 Chip Selection"
	default ARCH_CHIP_LPC3131
	depends on ARCH_CHIP_LPC31XX

config ARCH_CHIP_LPC3130
	bool "LPC3130"
	select ARCH_HAVE_EXTNAND
	select ARCH_HAVE_EXTSRAM0
	select ARCH_HAVE_EXTSRAM1
	select ARCH_HAVE_EXTDRAM

config ARCH_CHIP_LPC3131
	bool "LPC3131"
	select ARCH_HAVE_EXTNAND
	select ARCH_HAVE_EXTSRAM0
	select ARCH_HAVE_EXTSRAM1
	select ARCH_HAVE_EXTDRAM

config ARCH_CHIP_LPC3152
	bool "LPC3152"
	select ARCH_HAVE_EXTNAND
	select ARCH_HAVE_EXTSRAM0
	select ARCH_HAVE_EXTSRAM1
	select ARCH_HAVE_EXTDRAM

config ARCH_CHIP_LPC3154
	bool "LPC3154"
	select ARCH_HAVE_EXTNAND
	select ARCH_HAVE_EXTSRAM0
	select ARCH_HAVE_EXTSRAM1
	select ARCH_HAVE_EXTDRAM

endchoice # LPC31xx Configuration Options

config LPC31_SDRAMHCLK
	int "External SDRAM HCLK"
	depends on LPC31_EXTSDRAM
	---help---
		The SDRAM HCLK may be specified here (if not, it will be calculated).

menu "LPC31xx Peripheral Support"

config LPC31_UART
	bool "UART"
	default n
	select ARCH_HAVE_UART

config LPC31_SPI
	bool "SPI"
	default n

config LPC31_USBOTG
	bool "USB OTG"
	default n

config LPC31_MCI
	bool "MCI"
	default n
	select ARCH_HAVE_SDIO

endmenu # LPC31xx Peripheral Support

menu "External Memory Configuration"

config ARCH_HAVE_EXTNAND
	bool

config ARCH_HAVE_EXTDRAM
	bool

config ARCH_HAVE_EXTSRAM0
	bool

config ARCH_HAVE_EXTSRAM1
	bool

config LPC31_EXTNAND
	bool "Configure external NAND"
	default n
	depends on ARCH_HAVE_EXTNAND
	---help---
		Configure external NAND memory and, if applicable, map then external
		NAND into the memory map.

if LPC31_EXTNAND

config LPC31_EXTNANDSIZE
	int "External NAND size"
	default 0
	---help---
		Size of the external NAND in bytes.

endif # LPC31_EXTNAND

config LPC31_EXTDRAM
	bool "Configure external DRAM"
	default n
	depends on ARCH_HAVE_EXTDRAM
	select ARCH_HAVE_SDRAM
	---help---
		Configure external DRAM memory and, if applicable, map then external
		DRAM into the memory map.

if LPC31_EXTDRAM

config LPC31_EXTDRAMSIZE
	int "External SDRAM size"
	default 0
	---help---
		Size of the external SDRAM in bytes.

choice
	prompt "SDRAM Width Selection"
	default LPC31_SDRAM_16BIT

config LPC31_SDRAM_8BIT
	bool "8-bit"

config LPC31_SDRAM_16BIT
	bool "16-bit"

config LPC31_SDRAM_32BIT
	bool "32-bit"

endchoice # SDRAM Width Selection

config LPC31_EXTDRAMHEAP
	bool "Add external SDRAM to the heap"
	default y
	---help---
		Add the external SDRAM into the heap.

endif # LPC31_EXTDRAM

config LPC31_EXTSRAM0
	bool "Configure external SRAM (Bank 0)"
	default n
	depends on ARCH_HAVE_EXTSRAM0
	---help---
		Configure external SRAM Bank 0 memory and, if applicable, map then
		external SRAM Bank 0 into the memory map.

if LPC31_EXTSRAM0

config LPC31_EXTSRAM0SIZE
	int "External SRAM size"
	default 0
	---help---
		Size of the external SRAM Bank 0 in bytes.

config LPC31_EXTSRAM0HEAP
	bool "Add external SRAM (Bank 0) to the heap"
	default y
	---help---
		Add external SRAM Bank 0 into the heap.

endif # LPC31_EXTSRAM0

config LPC31_EXTSRAM1
	bool "Configure external SRAM (Bank 1)"
	default n
	depends on ARCH_HAVE_EXTSRAM1
	---help---
		Configure external SRAM Bank 1 memory and, if applicable, map then
		external SRAM Bank 1 into the memory map.

if LPC31_EXTSRAM1

config LPC31_EXTSRAM1SIZE
	int "External SRAM1 size"
	default 0
	---help---
		Size of the external SRAM Bank 1 in bytes.

config LPC31_EXTSRAM1HEAP
	bool "Add external SRAM (Bank 1) to the heap"
	default y
	---help---
		Add external SRAM Bank 1 into the heap.

endif # LPC31_EXTSRAM1
endmenu # External Memory Configuration

menu "LPC31xx UART Configuration"
	depends on LPC31_UART

config LPC31_UART_PRECALCULATED
	bool "Use pre-calculated BAD configuration"
	default n

if LPC31_UART_PRECALCULATED

config LPC31_UART_DIVADDVAL
	int "BAUD pre-scaler divisor"
	---help---
		BAUD pre-scaler divisor

config LPC31_UART_DIVISOR
	int "BAUD divisor"
	---help---
		BAUD divisor

config LPC31_UART_MULVAL
	int "BAUD multiplier"
	---help---
		BAUD multiplier

endif # LPC31_UART_PRECALCULATED
endmenu # LPC31xx UART Configuration

if LPC31_USBOTG && USBDEV

menu "USB device controller driver (DCD) options"

config LPC31_USBDEV_EP0_MAXSIZE
	int "EP0 Max packet size"
	default 64
	---help---
		Endpoint 0 maximum packet size.  Default: 64

config LPC31_USBDEV_FRAME_INTERRUPT
	bool "USB frame interrupt"
	default n
	---help---
		Handle USB Start-Of-Frame events.  Enable reading SOF from interrupt
		handler vs. simply reading on demand. Probably a bad idea... Unless
		there is some issue with sampling the SOF from hardware asynchronously.

config LPC31_USBDEV_DMA
	bool "Enable USB device DMA"
	default n
	---help---
		Enable lpc31xx-specific DMA support

config LPC31_USBDEV_REGDEBUG
	bool "Register level debug"
	depends on DEBUG
	default n
	---help---
		Output detailed register-level USB device debug information.  Requires also DEBUG.

endmenu # USB device driver controller (DCD) options
endif # LPC31_USBOTG && USBDEV

if LPC31_USBOTG && USBHOST

menu "USB host controller driver (HCD) options"

config LPC31_EHCI_SDIS
	bool "Stream disable"
	default n
	---help---
		Selecting this option ensures that overruns/underruns of the latency
		FIFO are eliminated for low bandwidth systems where the RX and TX
		buffers are sufficient to contain the entire packet. Enabling stream
		disable also has the effect of ensuring the the TX latency is filled
		to capacity before the packet is launched onto the USB.

		Note: Time duration to pre-fill the FIFO becomes significant when stream disable is active.

config LPC31_EHCI_NQHS
	int "Number of Queue Head (QH) structures"
	default 4
	---help---
		Configurable number of Queue Head (QH) structures.  The default is
		one per Root hub port plus one for EP0 (4).

config LPC31_EHCI_NQTDS
	int "Number of Queue Element Transfer Descriptor (qTDs)"
	default 6
	---help---
		Configurable number of Queue Element Transfer Descriptor (qTDs).
		The default is one per root hub plus three from EP0 (6).

config LPC31_EHCI_BUFSIZE
	int "Size of one request/descriptor buffer"
	default 128
	---help---
		The size of one request/descriptor buffer in bytes.  The TD buffe
		size must be an even number of 32-bit words and must be large enough
		to hangle the largest transfer via a SETUP request.

config LPC31_EHCI_PREALLOCATE
	bool "Preallocate descriptor pool"
	default y
	---help---
		Select this option to pre-allocate EHCI queue and descriptor
		structure pools in .bss.  Otherwise, these pools will be
		dynamically allocated using kmm_memalign().

config LPC31_EHCI_REGDEBUG
	bool "Enable low-level EHCI register debug"
	default n
	depends on DEBUG

endmenu # USB host controller driver (HCD) options
endif # LPC31_USBOTG && USBHOST

menu "SPI device driver options"

config LPC31_SPI_REGDEBUG
	bool "SPI Register level debug"
	depends on LPC31_SPI && DEBUG
	default n
	---help---
		Output detailed register-level SPI device debug information.  Requires also DEBUG.

endmenu # SPI device driver options
