Difference between revisions of "CI20 upstream"
(→Peripheral drivers: IR can use gpio driver) |
(→Peripheral drivers: add path column) |
||
| Line 94: | Line 94: | ||
! Name | ! Name | ||
! State | ! State | ||
| + | ! Path | ||
! Notes | ! Notes | ||
|- | |- | ||
| ADC | | ADC | ||
| WIP | | WIP | ||
| + | | | ||
| Check branches on https://github.com/ZubairLK/CI20_linux | | Check branches on https://github.com/ZubairLK/CI20_linux | ||
|- | |- | ||
| Audio (ALSA) | | Audio (ALSA) | ||
| WIP | | WIP | ||
| + | | | ||
| Check patches on https://groups.google.com/forum/#!forum/mips-creator-ci20-dev | | Check patches on https://groups.google.com/forum/#!forum/mips-creator-ci20-dev | ||
|- | |- | ||
| Camera | | Camera | ||
| | | | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Ethernet | | Ethernet | ||
| Works | | Works | ||
| + | | | ||
| | | | ||
|- | |- | ||
| GPU | | GPU | ||
| | | | ||
| + | | | ||
| | | | ||
|- | |- | ||
| HDMI | | HDMI | ||
| WIP | | WIP | ||
| + | | | ||
| Check patches on https://groups.google.com/forum/#!forum/mips-creator-ci20-dev | | Check patches on https://groups.google.com/forum/#!forum/mips-creator-ci20-dev | ||
|- | |- | ||
| I2C | | I2C | ||
| Works | | Works | ||
| + | | | ||
| | | | ||
|- | |- | ||
| IPU | | IPU | ||
| | | | ||
| + | | | ||
| | | | ||
|- | |- | ||
| IR | | IR | ||
| | | | ||
| − | | | + | | drivers/media/rc/gpio-ir-recv.c |
| + | | GPIO, so use upstream GPIO driver | ||
|- | |- | ||
| MMC | | MMC | ||
| Works | | Works | ||
| + | | | ||
| | | | ||
|- | |- | ||
| NAND | | NAND | ||
| Works | | Works | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Regulator | | Regulator | ||
| Works | | Works | ||
| + | | | ||
| | | | ||
|- | |- | ||
| SPI | | SPI | ||
| | | | ||
| + | | | ||
| SPIO GPIO should work.. | | SPIO GPIO should work.. | ||
|- | |- | ||
| UART | | UART | ||
| Works | | Works | ||
| + | | | ||
| | | | ||
|- | |- | ||
| USB (EHCI) | | USB (EHCI) | ||
| Works | | Works | ||
| + | | | ||
| | | | ||
|- | |- | ||
| USB (OHCI) | | USB (OHCI) | ||
| Works | | Works | ||
| + | | | ||
| | | | ||
|- | |- | ||
| USB(OTG) | | USB(OTG) | ||
| Works | | Works | ||
| + | | | ||
| Upstream driver supports only host mode as of 3.15 | | Upstream driver supports only host mode as of 3.15 | ||
|- | |- | ||
| VPU | | VPU | ||
| | | | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Wifi | | Wifi | ||
| WIP | | WIP | ||
| + | | | ||
| Check patches on https://groups.google.com/forum/#!forum/mips-creator-ci20-dev | | Check patches on https://groups.google.com/forum/#!forum/mips-creator-ci20-dev | ||
|- | |- | ||
| BT | | BT | ||
| WIP | | WIP | ||
| + | | | ||
| Check branches on https://github.com/ZubairLK/CI20_linux | | Check branches on https://github.com/ZubairLK/CI20_linux | ||
|} | |} | ||
Revision as of 08:15, 16 December 2014
This page contains details about the latest kernel branch and any known quirks/special requirements.
It will be periodically updated to keep up to speed with the latest.
The current branch tracking mainline 3.16
https://github.com/MIPS/CI20_linux
Status of Linux Kernel Drivers
Core
| Name | State | Path | Notes |
|---|---|---|---|
| IRQ Controller | drivers/irqchip/irq-jz4780.c | Very similar between SoCs (4740 has one bank, 60,70,80 has two banks) | |
| Clocks | Works | drivers/clk/jz47xx | Could have common drivers/clk/ingenic for all SoCs with SoC specific binding using common components(?) |
| CPUfreq | |||
| Device Tree | Mostly | Parsed on boot, but compiled into the kernel. Would be good to allow it to be passed from the bootloader. | |
| DMA | Mostly | drivers/dma/dma-jz4780.c | needs combining into dma-jz4740. Works, just missing priority support |
| GPIO | Works | drivers/pinctrl/pinctrl-jz4780.c | should perhaps be in drivers/gpio/ (?) |
| Hotplug | |||
| MXU Context | |||
| PinCtrl | Mostly | drivers/pinctrl/pinctrl-jz4780.c | Differs between SoCs. Functional, may need DT binding changes based on feedback from upstream. See also pinctrl-jz4770.c. |
| Power Controller (LPCR Register) | |||
| Power Off & Reset | Works | ||
| RTC | Works | ||
| SMP | Works | ||
| Watchdog | Works |
Peripheral drivers
| Name | State | Path | Notes |
|---|---|---|---|
| ADC | WIP | Check branches on https://github.com/ZubairLK/CI20_linux | |
| Audio (ALSA) | WIP | Check patches on https://groups.google.com/forum/#!forum/mips-creator-ci20-dev | |
| Camera | |||
| Ethernet | Works | ||
| GPU | |||
| HDMI | WIP | Check patches on https://groups.google.com/forum/#!forum/mips-creator-ci20-dev | |
| I2C | Works | ||
| IPU | |||
| IR | drivers/media/rc/gpio-ir-recv.c | GPIO, so use upstream GPIO driver | |
| MMC | Works | ||
| NAND | Works | ||
| Regulator | Works | ||
| SPI | SPIO GPIO should work.. | ||
| UART | Works | ||
| USB (EHCI) | Works | ||
| USB (OHCI) | Works | ||
| USB(OTG) | Works | Upstream driver supports only host mode as of 3.15 | |
| VPU | |||
| Wifi | WIP | Check patches on https://groups.google.com/forum/#!forum/mips-creator-ci20-dev | |
| BT | WIP | Check branches on https://github.com/ZubairLK/CI20_linux |
List of other possible issues
- /etc/init.d/iw8103 is the startup script for the BT/Wifi firmware in the default rootfs.
If using 3.16, the script can cause the boot to hang. Please move the script out of /etc/init.d
Add "root=/dev/mmcblk0p1 rootwait" to bootargs in uboot if you wish to boot a rootfs from mmc.
| ||||||||||||||||||||||||
