Annotation of wikisrc/ports/evbarm/allwinner.mdwn, revision 1.49
1.1 wiki 1: [[!meta title="NetBSD/evbarm on Allwinner Technology SoCs"]]
2:
1.49 ! wiki 3: NetBSD 7.0 has support for A10, A20, and A31 SoCs. NetBSD -current adds support for A80 SoCs.
! 4:
1.18 wiki 5: [[!toc levels=2]]
6:
1.1 wiki 7: # Supported boards
1.11 wiki 8: - [Banana Pi](http://www.bananapi.org/p/product.html) (BPI)
1.31 wiki 9: - Cubieboard 2 (CUBIEBOARD)
1.38 wiki 10: - [Cubieboard 4](http://cubieboard.org/model/cb4/) (ALLWINNER_A80) *NetBSD-current*
1.1 wiki 11: - Cubietruck (CUBIETRUCK)
1.10 wiki 12: - [Merrii Hummingbird A31](http://www.merrii.com/en/pla_d.asp?id=172) (HUMMINGBIRD_A31)
1.1 wiki 13:
14: # Supported hardware
15: - SoCs
1.35 wiki 16: - Cortex-A7: A20 (2-core), A31 (4-core), A80
17: - Cortex-A7/A15: A80 (4-core A7 + 4-core A15)
1.14 wiki 18: - SD/MMC controller (DMA)
1.1 wiki 19: - DMA controller
20: - GPIO
1.20 wiki 21: - Configuration using FEX scripts is supported
1.1 wiki 22: - UART
23: - I2C
1.36 wiki 24: - P2WI (A31) / RSB (A80)
1.1 wiki 25: - PMU
1.36 wiki 26: - AXP209 (A20)
1.1 wiki 27: - AXP221 (A31)
1.36 wiki 28: - AXP806 (A80)
29: - AXP809 (A80)
1.1 wiki 30: - Watchdog timer
31: - RTC
1.37 wiki 32: - A20/A31: integrated RTC, PCF8563
33: - A80: AC100
34: - Audio codec (A20/A31)
1.14 wiki 35: - USB host
1.1 wiki 36: - OHCI
37: - EHCI
1.37 wiki 38: - OTG (A20)
1.1 wiki 39: - SATA (A10/A20)
40: - Gigabit Ethernet (GMAC)
1.45 wiki 41: - HDMI
42: - DDC / EDID mode detection (A20/A31)
43: - Audio support (A20/A31)
44: - Framebuffer (A20/A31/A80)
1.39 wiki 45: - IR receiver (A20/A31/A80)
1.2 wiki 46:
1.14 wiki 47: # TODO
1.40 wiki 48: - A10
49: - Interrupt controller
50: - EMAC
51: - A31
52: - OTG
53: - IR transmitter
54: - 3G module
55: - TV input
56: - A80
57: - MP
58: - big.LITTLE support
59: - USB3 (OTG and XHCI)
60: - IR transmitter
1.45 wiki 61: - HDMI (DDC and mode setting; currently relies on U-Boot for setup)
1.40 wiki 62: - Audio codec
63: - All
64: - USB device mode
65: - SD/MMC UHS-I support (needs sdmmc(4) changes)
66: - SDIO (Bluetooth / WiFi)
67: - NAND
1.44 wiki 68: - VGA (Cubietruck, Hummingbird A31, Cubieboard4)
1.14 wiki 69:
1.2 wiki 70: # Installation
71:
1.34 wiki 72: ## A10 / A20 / A31 based boards
1.2 wiki 73:
1.33 snj 74: * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beagleboard.img*
1.34 wiki 75: * Download a U-Boot build for your board
1.48 wiki 76: * Download the correct build from the linux-sunxi web site <http://dl.linux-sunxi.org/nightly/u-boot-sunxi/u-boot-sunxi-mainline/u-boot-sunxi-mainline-latest/>.
1.43 mrg 77: * Write the *u-boot-sunxi-with-spl.bin* loader to the empty space at the start of the base image:
1.2 wiki 78: [[!template id=programlisting text="""
1.33 snj 79: # dd if=u-boot-sunxi-with-spl.bin of=beagleboard.img bs=1k seek=8 conv=notrunc
1.2 wiki 80: """]]
81: * Write the image to an SD card.
1.43 mrg 82: * Copy the kernel (netbsd.ub) for your board to the root of the MS-DOS partition on the SD card.
1.12 wiz 83: * Create or edit uEnv.txt on the MS-DOS partition:
1.2 wiki 84: [[!template id=programlisting text="""
85: bootargs=root=ld0a
86: uenvcmd=mmc dev 0; mmc rescan; fatload mmc 0:1 82000000 netbsd.ub; bootm 82000000
87: """]]
88:
1.35 wiki 89: ## A80 based boards
90:
91: * Cubieboard 4 SDK (lubuntu) U-Boot env:
92: [[!template id=programlisting text="""
93: baudrate=115200
94: boot_normal=fatload mmc 0:1 20007800 uimage;bootm 20007800
95: bootcmd=run setargs_cubie boot_normal
96: bootdelay=3
97: console=ttyS0,115200
98: console1=tty1
99: init=/init
100: loglevel=8
101: mmc_root=/dev/mmcblk0p2
102: setargs_cubie=setenv bootargs console=${console1} console=${console} root=${mmc_root} loglevel=${loglevel}
103: stderr=serial
104: stdin=serial
105: stdout=serial
106: """]]
107:
1.7 wiki 108: # Big (endian) fun
1.5 wiki 109:
110: You can run this boards with a little endian (this is the default and implied by above install instructions)
1.12 wiz 111: or with a big endian kernel and userland. However, kernel and userland endianness needs to match.
1.5 wiki 112:
113: To build a big endian release (or sets) use
114: [[!template id=programlisting text="""
115: ./build.sh -m evbearmv7hf-eb
116: """]]
1.12 wiz 117: where -eb means endianness big, hf is hardware floating point support, and earm is the modern "extended" ABI for ARM CPUs, and finally v7 is version 7 of the supported instruction set.
1.17 wiki 118:
1.21 wiki 119: # FEX scripts
120:
121: Board configuration scripts can be found here: <https://github.com/linux-sunxi/sunxi-boards/blob/master/sys_config>. You can compile them with the "fex2bin" tool found here: <https://github.com/linux-sunxi/sunxi-tools>.
122:
123: To use, copy the compiled FEX to your MS-DOS partition, load it with U-Boot, and then tell the kernel where to find it with the "sysconfig=" boot option. For example, uEnv.txt on a Cubieboard2 might look like this:
124:
125: [[!template id=programlisting text="""
126: bootargs=root=ld0a sysconfig=0x43000000
127: uenvcmd=mmc dev 0; mmc rescan; fatload mmc 0:1 43000000 cubieboard2.bin; fatload mmc 0:1 82000000 netbsd.ub; bootm 82000000
128: """]]
129:
1.22 wiki 130: Some pre-compiled .bin files can be found here: <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/allwinner/fex/>
131:
1.25 wiki 132: # Framebuffer console
133:
134: To use HDMI for the console device, add *console=fb* to bootargs in uEnv.txt.
135:
1.29 wiki 136: 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
137:
1.27 wiki 138: # HDMI audio
139:
140: The default audio device is the analog audio codec. To change the default device, use the *audiocfg* command:
141:
142: [[!template id=programlisting text="""
143: a31# audiocfg list
144: 0: [*] audio0 @ awinac0: Allwinner CODEC A31, 2 playback channels
145: 1: [ ] audio1 @ awinhdmiaudio0: Allwinner HDMI 1.4, 2 playback channels
146: a31# audiocfg default 1
147: setting default audio device to audio1
148: a31# audiocfg list
149: 0: [ ] audio0 @ awinac0: Allwinner CODEC A31, 2 playback channels
150: 1: [*] audio1 @ awinhdmiaudio0: Allwinner HDMI 1.4, 2 playback channels
151: """]]
152:
1.42 wiki 153: # MAC address
1.17 wiki 154:
1.42 wiki 155: 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*:
1.17 wiki 156: [[!template id=programlisting text="""
157: bootargs=root=ld0a awge0.mac-address=02:a0:3d:88:1a:1e
158: """]]
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