Status

Status

Stuff is going upstream and Linux 4.2 will have good base support for LPC18xx/43xx controllers. See tables below for details about each peripheral.

##Upstreaming Tracks the progress of driver upstreaming for the NXP LPC18xx/43xx platform.

What	Status	Kernel	Notes
Base + clocksource	Accepted	4.2
pinctrl (SCU)	Accepted	4.2
gpio	Accepted	4.2
dwmac (Ethernet)	Accepted	4.2
uart	Accepted	4.2
clk (CGU and CCU)	Accepted	4.2
reset (RGU)	Accepted	4.3
usb otg phy	Accepted	4.3
dts for 4.3 part 1	Accepted	4.3
dts for 4.3 part 2	Accepted	4.3
pl172 mpmc (EMC)	Accepted	4.3
rtc	Accepted	4.3
spifi	Accepted	4.3
dma	Accepted	4.3
i2c	Accepted	4.3
wwdt	Accepted	4.3	By Ariel D'Alessandro.
sct-pwm	Accepted	4.3	By Ariel D'Alessandro.
dts for 4.4 pull	Accepted	4.4
mma7455 iio accel	Accepted	4.5	Chip on EA4357 board.
dts for 4.5 pull	Accepted	4.5
eeprom	Accepted	4.6	By Ariel D'Alessandro.
creg clk	Accepted	4.6
adc	Accepted	4.7
dac	Accepted	4.7
dts for 4.7 pull	Accepted	4.7
dts for 4.9 pull	Accepted	4.9
otp	Accepted	4.10
boot rom	Posted
pint irq	Posted v2

##LPC18xx/43xx peripheral drivers

Peripheral	Status	Driver	Notes
CREG	Done	lpc1850-creg	Supported by standard syscon driver.
RGU	Done	lpc1850-rgu	Reset driver.
SCU	Done	lpc1850-scu	Pinctrl driver for System Control Unit.
GPIO	Done	lpc1850-gpio	GPIO driver.
Timer	Done	lpc3250-timer	Clocksource driver seems to work.
RTC	Done	lpc1788-rtc	Seems to work.
I2C	Done	lpc1788-i2c	Seems to work. Needs clean up.
CGU	Done	lpc1850-cgu	Clock driver for Clock Genereation Unit.
CCU	Done	lpc1850-ccu	Clock driver for Clock Control Unit.
EMC	Done	pl172	ARM PLC172. Seems to work. Only static CS supported.
USART	Done	lpc1850-uart	8250 UART glue with RS485 support
Ethernet	Done	lpc1850-dwmac	DesignWare GMAC glue.
USB OTG PHY	Done	lpc1850-usb-otg-phy	PHY driver.
SPIFI	Done	lpc1773-spifi	SPI-NOR driver for SPIFI.
DMA MUX	Done	lpc1850-dmamux	DMA router driver.
GPIO PINT	Done	lpc1850-gpio-pint	GPIO Pin Interrupt irqchip driver.
ADC	Done	lpc1850-adc	IIO driver.
DAC	Done	lpc1850-dac	IIO driver.
USB0 OTG	OK	generic-ehci	Standard EHCI driver.
USB1	OK	generic-ehci	Standard EHCI driver.
SD/MMC	OK	dw-mshc	DesignWare SD/MMC. Has some issues.
SSP	OK	pl022	Not tested. Dev board doesn't have SPI devices.
CAN	OK	c_can	Should be support by CAN_C driver. Untested.
GPDMA	OK	pl080	ARM PL080 driver works.
LCD	OK	pl111	Should be supported by amba-clcd. Untested.
GPIO GRP INT	Started	lpc1850-grp-int	Work on irqchip in progress.
Boot ROM	Started	lpc1850-boot-rom	Firmware driver for ROM API; IAP, OTP, etc.
Flash	Started	lpc1857-flash	MTD driver. Needs above firmware driver.
I2S	Started	lpc1850-i2s	ASoC driver.
M0-core	Started	lpc4350-rproc	remoteproc driver for M0 cores.
MC PWM	Done?	lpc3220-motor-pwm	See https://patchwork.kernel.org/patch/1741221/.
WWDT	Done	lpc1850-wwdt	Watchdog driver by Ariel D'Alessandro.
SCT	Done	lpc1850-sct-pwm	PWM driver for SCT by Ariel D'Alessandro.
EEPROM	Done	lpc1857-eeprom	NVMEM driver by Ariel D'Alessandro.
OTP	Done	lpc1850-otp	NVMEM driver.
NAND	Done	onfi,nand ?	Needs some DT bindings.
ADCHS	Not started	lpc4370-adchs	IIO driver. Only on LPC4370.

Peripherals not in the table above are not a priority at this time.

##Mainline driver TODO

• Properly fix unused clock disabling. Issues on USB0 and AMBA devices (CGU+CCU).
• Fix the strange Ethernet bug
• Fix USB0PLL code in CGU and allow USB0 clock setup in Linux.
• Add support for assigning parents and rates on internal CGU clocks (assigned clocks).
• Revisit CCU clock table and try to split it per CCU unit.

##EA4357 Development Kit Devices on EA4357 that either needs a driver or changes to work.

Device	Status	Driver	Notes
UDA1380	-	uda1380	Mainline ASoC CODEC driver needs DT bindings
PCA9532	-	pca9532	Mainline led driver needs DT bindings
MMA7455	Done	mma7455	Simple IIO accel driver