--- wikisrc/ports/evbarm/allwinner.mdwn 2014/11/12 00:47:19 1.27
+++ wikisrc/ports/evbarm/allwinner.mdwn 2015/04/02 18:36:59 1.50
@@ -1,72 +1,99 @@
[[!meta title="NetBSD/evbarm on Allwinner Technology SoCs"]]
+NetBSD 7.0 has support for A10, A20, and A31 SoCs. NetBSD -current adds support for A80 SoCs.
+
[[!toc levels=2]]
# Supported boards
- [Banana Pi](http://www.bananapi.org/p/product.html) (BPI)
- - Cubieboard, Cubieboard 2 (CUBIEBOARD)
+ - Cubieboard 2 (CUBIEBOARD)
+ - [Cubieboard 4](http://cubieboard.org/model/cb4/) (ALLWINNER_A80) *NetBSD-current*
- Cubietruck (CUBIETRUCK)
- [Merrii Hummingbird A31](http://www.merrii.com/en/pla_d.asp?id=172) (HUMMINGBIRD_A31)
# Supported hardware
- SoCs
- - Cortex-A8: A10
- - Cortex-A7: A20 (2-core), A31 (4-core)
+ - Cortex-A7: A20 (2-core), A31 (4-core), A80
+ - Cortex-A7/A15: A80 (4-core A7 + 4-core A15)
- SD/MMC controller (DMA)
- DMA controller
- GPIO
- Configuration using FEX scripts is supported
- UART
- I2C
- - P2WI (A31)
+ - P2WI (A31) / RSB (A80)
- PMU
- AXP209 (A20)
- AXP221 (A31)
+ - AXP806 (A80)
+ - AXP809 (A80)
- Watchdog timer
- RTC
- - Audio codec
+ - A20/A31: integrated RTC, PCF8563
+ - A80: AC100
+ - Audio codec (A20/A31)
- USB host
- OHCI
- EHCI
- - OTG (not yet working on A31)
+ - OTG (A20)
- SATA (A10/A20)
- Gigabit Ethernet (GMAC)
- - HDMI (A20/A31)
- - DDC / EDID mode detection
- - Audio support
- - Framebuffer
+ - HDMI
+ - DDC / EDID mode detection (A20/A31)
+ - Audio support (A20/A31)
+ - Framebuffer (A20/A31/A80)
+ - IR receiver (A20/A31/A80)
# TODO
- - OTG (A31)
- - USB device mode
- - Bluetooth / WiFi (Cubietruck, Hummingbird A31)
- - 3G (Hummingbird A31)
- - SD/MMC UHS-I support (needs sdmmc(4) changes)
- - TV input (Hummingbird A31)
- - NAND
- - Fast Ethernet (EMAC)
+ - A10
+ - Interrupt controller
+ - EMAC
+ - A31
+ - OTG
+ - IR transmitter
+ - 3G module
+ - TV input
+ - A80
+ - MP
+ - big.LITTLE support
+ - USB3 (OTG and XHCI)
+ - IR transmitter
+ - HDMI (DDC and mode setting; currently relies on U-Boot for setup)
+ - Audio codec
+ - All
+ - USB device mode
+ - SD/MMC UHS-I support (needs sdmmc(4) changes)
+ - SDIO (Bluetooth / WiFi)
+ - NAND
+ - VGA (Cubietruck, Hummingbird A31, Cubieboard4)
# Installation
-## A10 / A20 based boards
+## A10 / A20 / A31 based boards
-* Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beaglebone.img*
-* Download a U-Boot build for your board from the linux-sunxi web site
-* Write the *u-boot-sunxi-with-spl.bin* loader to the base image:
+* Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beagleboard.img*
+* Download a U-Boot build for your board
+ * Download the correct build from the linux-sunxi web site .
+* Write the *u-boot-sunxi-with-spl.bin* loader to the empty space at the start of the base image:
[[!template id=programlisting text="""
-# dd if=u-boot-sunxi-with-spl.bin of=beaglebone.img bs=1k seek=8 conv=notrunc
+# dd if=u-boot-sunxi-with-spl.bin of=beagleboard.img bs=1k seek=8 conv=notrunc
"""]]
* Write the image to an SD card.
-* Copy the kernel (netbsd.ub) for your board to the root of the MS-DOS partition.
+* Copy the kernel (netbsd.ub) for your board to the root of the MS-DOS partition on the SD card.
* Create or edit uEnv.txt on the MS-DOS partition:
[[!template id=programlisting text="""
bootargs=root=ld0a
uenvcmd=mmc dev 0; mmc rescan; fatload mmc 0:1 82000000 netbsd.ub; bootm 82000000
"""]]
-## A31 based boards
+## A80 based boards
-TBD.
+* Cubieboard 4 U-Boot for SD card:
+[[!template id=programlisting text="""
+# dd if=u-boot-spl.bin of=/dev/sdd bs=1k seek=8
+# dd if=u-boot-sun9iw1p1.bin of=/dev/sdd bs=1k seek=19096
+"""]]
+* First partition needs to be at +20MB offset. Format it as MSDOS, copy 'netbsd.ub' to it as 'uImage'.
# Big (endian) fun
@@ -96,6 +123,8 @@ Some pre-compiled .bin files can be foun
To use HDMI for the console device, add *console=fb* to bootargs in uEnv.txt.
+If the connected display does not let you disable overscan, you can add a margin to the framebuffer by with the *fb.margin* bootargs option. For example, to set a 25-pixel margin around the screen, add *fb.margin=25* to uEnv.txt
+
# HDMI audio
The default audio device is the analog audio codec. To change the default device, use the *audiocfg* command:
@@ -111,13 +140,9 @@ a31# audiocfg list
1: [*] audio1 @ awinhdmiaudio0: Allwinner HDMI 1.4, 2 playback channels
"""]]
-# Board specific notes
-
-## Merrii Hummingbird A31
-
-There doesn't appear to be a meaningful way to generate a MAC address on these boards. U-Boot from the A31 SDK and from the u-boot-sunxi tree both lack GMAC support, and the Security ID registers (at 0x01c23800) appear to be empty.
+# MAC address
-To overcome this, you can specify your own MAC address in *uEnv.txt*:
+On boards where the ethernet MAC address cannot be determmined, a random MAC address will be generated every boot. You can override this behaviour by specifying a MAC address in *uEnv.txt*:
[[!template id=programlisting text="""
bootargs=root=ld0a awge0.mac-address=02:a0:3d:88:1a:1e
"""]]