Annotation of wikisrc/ports/evbarm/allwinner.mdwn, revision 1.59
1.1 wiki 1: [[!meta title="NetBSD/evbarm on Allwinner Technology SoCs"]]
2:
1.52 wiki 3: NetBSD 7.0 has support for A20 and A31 SoCs. NetBSD -current adds support for A80 SoCs.
1.49 wiki 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: - SDIO (Bluetooth / WiFi)
66: - NAND
1.44 wiki 67: - VGA (Cubietruck, Hummingbird A31, Cubieboard4)
1.14 wiki 68:
1.2 wiki 69: # Installation
70:
1.52 wiki 71: ## A20 / A31 based boards
1.2 wiki 72:
1.54 leot 73: * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/armv7.img.gz* from
74: NetBSD 7.0
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/>.
1.54 leot 77: * Decompress the image via [[!template id=man name="gunzip" section="1"]]:
78: [[!template id=programlisting text="""
79: # gunzip armv7.img.gz
80: """]]
1.43 mrg 81: * Write the *u-boot-sunxi-with-spl.bin* loader to the empty space at the start of the base image:
1.2 wiki 82: [[!template id=programlisting text="""
1.54 leot 83: # dd if=u-boot-sunxi-with-spl.bin of=armv7.img bs=1k seek=8 conv=notrunc
84: """]]
85: * Write the image to an SD card (e.g.: if the SD card is recognised as *sd0* -
86: please check the [[!template id=man name="dmesg" section="8"]] output to be
87: sure!):
88: [[!template id=programlisting text="""
89: # dd if=armv7.img of=/dev/rsd0d bs=1m
90: """]]
91: * Copy the kernel (*netbsd.ub*) for your board to the root of the MS-DOS
92: partition on the SD card
93: * Prepare a *boot.cmd* file for U-Boot boot loader containing the needed
94: instructions regarding how to boot the kernel (basically the *bootargs* that are
95: passed to the kernel and how to load the kernel from a device to the RAM and
96: then boot it from the memory address):
1.58 leot 97:
1.57 leot 98: [[!template id=filecontent name="boot.cmd" text="""
1.54 leot 99: setenv kernel_addr 82000000
100: setenv kernel netbsd.ub
101: setenv bootargs "root=ld0a"
102:
103: fatload mmc 0:1 ${kernel_addr} ${kernel}
104: bootm ${kernel_addr}
1.2 wiki 105: """]]
1.54 leot 106: * The *boot.cmd* text file should be converted in a script image - *boot.scr*
107: for U-Boot via [[!template id=man name="mkubootimage" section="1"]]:
1.2 wiki 108: [[!template id=programlisting text="""
1.54 leot 109: # mkubootimage -A arm -n armv7 -T script boot.cmd boot.scr
1.2 wiki 110: """]]
1.54 leot 111: * Copy the *boot.scr* to the MS-DOS partition of the SD card
1.2 wiki 112:
1.35 wiki 113: ## A80 based boards
114:
1.50 wiki 115: * Cubieboard 4 U-Boot for SD card: <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/allwinner/a80/cubieboard4-uboot.tgz>
1.35 wiki 116: [[!template id=programlisting text="""
1.50 wiki 117: # dd if=u-boot-spl.bin of=/dev/sdd bs=1k seek=8
118: # dd if=u-boot-sun9iw1p1.bin of=/dev/sdd bs=1k seek=19096
1.35 wiki 119: """]]
1.50 wiki 120: * First partition needs to be at +20MB offset. Format it as MSDOS, copy 'netbsd.ub' to it as 'uImage'.
1.35 wiki 121:
1.7 wiki 122: # Big (endian) fun
1.5 wiki 123:
124: You can run this boards with a little endian (this is the default and implied by above install instructions)
1.12 wiz 125: or with a big endian kernel and userland. However, kernel and userland endianness needs to match.
1.5 wiki 126:
1.59 ! sevan 127: To build a big endian release (or sets) use
1.5 wiki 128: [[!template id=programlisting text="""
1.59 ! sevan 129: ./build.sh -m evbearmv7hf-eb
1.5 wiki 130: """]]
1.12 wiz 131: 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 132:
1.21 wiki 133: # FEX scripts
134:
135: 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>.
136:
137: 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:
138:
1.57 leot 139: [[!template id=filecontent name="uEnv.txt" text="""
1.21 wiki 140: bootargs=root=ld0a sysconfig=0x43000000
141: uenvcmd=mmc dev 0; mmc rescan; fatload mmc 0:1 43000000 cubieboard2.bin; fatload mmc 0:1 82000000 netbsd.ub; bootm 82000000
142: """]]
143:
1.22 wiki 144: Some pre-compiled .bin files can be found here: <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/allwinner/fex/>
145:
1.25 wiki 146: # Framebuffer console
147:
148: To use HDMI for the console device, add *console=fb* to bootargs in uEnv.txt.
149:
1.29 wiki 150: 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
151:
1.27 wiki 152: # HDMI audio
153:
154: The default audio device is the analog audio codec. To change the default device, use the *audiocfg* command:
155:
156: [[!template id=programlisting text="""
157: a31# audiocfg list
158: 0: [*] audio0 @ awinac0: Allwinner CODEC A31, 2 playback channels
159: 1: [ ] audio1 @ awinhdmiaudio0: Allwinner HDMI 1.4, 2 playback channels
160: a31# audiocfg default 1
161: setting default audio device to audio1
162: a31# audiocfg list
163: 0: [ ] audio0 @ awinac0: Allwinner CODEC A31, 2 playback channels
164: 1: [*] audio1 @ awinhdmiaudio0: Allwinner HDMI 1.4, 2 playback channels
165: """]]
166:
1.42 wiki 167: # MAC address
1.17 wiki 168:
1.42 wiki 169: 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*:
1.57 leot 170: [[!template id=filecontent name="uEnv.txt" text="""
1.17 wiki 171: bootargs=root=ld0a awge0.mac-address=02:a0:3d:88:1a:1e
172: """]]
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