Annotation of wikisrc/ports/evbarm/odroid-c1.mdwn, revision 1.12
1.1 wiki 1: [[!meta title="NetBSD/evbarm on Hardkernel ODROID-C1"]]
2:
3: [[!toc levels=2]]
4:
1.2 wiki 5: # Supported hardware
1.6 wiki 6: - CPU: Cortex-A5: Amlogic S805 (4-core) at 1.5GHz
1.2 wiki 7: - CPU frequency scaling is supported with machdep.cpu sysctl tree
8: - SMP supported
9: - PL310 L2 cache controller
10: - GIC
11: - A5 watchdog timer
12: - A5 global timer
13: - SD/MMC controller (DMA)
14: - Serial console
1.7 wiki 15: - Framebuffer console
1.2 wiki 16: - USB host (OTG)
17: - Gigabit Ethernet (GMAC)
18: - RTL8211F PHY
19: - Hardware random number generator
1.11 wiki 20: - RTC
1.2 wiki 21:
22: # TODO
23: - USB device mode
24: - Simultaneous SD card and eMMC usage
25: - SD/MMC UHS-I support (needs sdmmc(4) changes)
26: - IR receiver
27: - GPIO
28: - I2C
1.7 wiki 29: - Audio
1.2 wiki 30:
31: # Installation
32:
33: * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beagleboard.img*
34: * Build U-Boot for ODROID-C1 <https://github.com/hardkernel/u-boot/tree/odroidc-v2011.03>
1.3 wiki 35: * Pre-built binaries here: <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/odroidc1/u-boot-odroidc-v2011.03-20150308.tar.gz>
1.4 wiki 36: * Note the location and size of the FFS partition in the *beagleboard.img* disklabel:
37: [[!template id=programlisting text="""
38: # $TOOLDIR/bin/nbdisklabel -M evbarm -B le beagleboard.img
39: ...
40: 8 partitions:
41: # size offset fstype [fsize bsize cpg/sgs]
42: a: 1359312 385024 4.2BSD 0 0 0 # (Cyl. 188 - 851*)
43: b: 262144 122880 swap # (Cyl. 60 - 187)
44: c: 1744336 0 unused 0 0 # (Cyl. 0 - 851*)
45: d: 1744336 0 unused 0 0 # (Cyl. 0 - 851*)
46: e: 114688 8192 MSDOS # (Cyl. 4 - 59)
47: """]]
1.2 wiki 48: * Write the bootloader to the empty space at the start of the base image:
49: [[!template id=programlisting text="""
50: # dd if=bl1.bin.hardkernel of=beagleboard.img bs=1 count=442 conv=notrunc
51: # dd if=bl1.bin.hardkernel of=beagleboard.img bs=512 skip=1 seek=1 conv=notrunc
52: # dd if=u-boot.bin of=beagleboard.img bs=512 seek=64 conv=notrunc
53: """]]
1.4 wiki 54: * Since the bootloader has overwritten the disklabel, we need to re-add partition "a" from the disklabel to the MBR partition table:
55: [[!template id=programlisting text="""
56: # $TOOLDIR/bin/armv7--netbsdelf-eabihf-fdisk -u beagleboard.img
57: ...
58: Which partition do you want to change?: [none] 1
59: The data for partition 1 is:
60: <UNUSED>
61: sysid: [0..255 default: 169]
62: start: [0..109cyl default: 63, 0cyl, 0MB] 385024
63: size: [0..85cyl default: 1359312, 85cyl, 664MB] 1359312
64: ...
65: Which partition do you want to change?: [none]
66: ...
67: Should we write new partition table? [n] y
68: """]]
1.2 wiki 69: * Write the image to an SD card.
70: * Copy the kernel (netbsd.ub) for your board to the root of the MS-DOS partition on the SD card.
1.9 wiki 71: * Create or edit *boot.ini* on the MS-DOS partition:
1.2 wiki 72: [[!template id=programlisting text="""
73: ODROIDC-UBOOT-CONFIG
74:
1.4 wiki 75: setenv bootargs "root=ld0f awge0.mac-address=${ethaddr}"
1.2 wiki 76: setenv bootcmd "fatload mmc 0:1 0x21000000 netbsd.ub; bootm 0x21000000"
77: run bootcmd
78: """]]
1.5 wiki 79: * On first boot, it will stop because of the wrong device in /etc/fstab. Take this opportunity to grow the root file-system:
1.4 wiki 80: [[!template id=programlisting text="""
81: # fdisk -u ld0
82: ...
83: Which partition do you want to change?: [none] 1
84: The data for partition 1 is:
85: NetBSD (sysid 169)
86: start 385024, size 1359312 (664 MB, Cyls 23/246/32-108/147/55)
87: PBR is not bootable: All bytes are identical (0x00)
88: sysid: [0..255 default: 169]
89: start: [0..966cyl default: 385024, 24cyl, 188MB]
90: size: [0..942cyl default: 1359312, 85cyl, 664MB] $
91: ...
92: Which partition do you want to change?: [none]
93: ...
94: Should we write new partition table? [n] y
95: # resize_ffs -y /dev/rld0f
96: # reboot
97: """]]
98: * Next boot, create a new /etc/fstab:
99: [[!template id=programlisting text="""
100: # mount -u -o rw /dev/ld0f /
101: # cat > /etc/fstab << EOF
102: /dev/ld0f / ffs rw 1 1
103: /dev/ld0e /boot msdos rw 1 1
104: kernfs /kern kernfs rw
105: ptyfs /dev/pts ptyfs rw
106: procfs /proc procfs rw
107: tmpfs /var/shm tmpfs rw,-m1777,-sram%25
108: EOF
109: # reboot
110: """]]
1.2 wiki 111:
1.9 wiki 112: # HDMI
113:
1.10 wiki 114: ## Framebuffer console
115:
116: Simply add **console=fb** to the *bootargs* variable in *boot.ini*.
117:
1.9 wiki 118: ## Video mode
119:
120: HDMI video mode can be selected in U-Boot with the *video* command, e.g.:
121:
122: [[!template id=programlisting text="""
123: odroidc#video dev open 1080P
124: """]]
125:
126: To make this change permanent, add it to the *bootcmd* variable in *boot.ini*:
127:
128: [[!template id=programlisting text="""
129: setenv bootcmd "video dev open 1080P; fatload mmc 0:1 0x21000000 netbsd.ub; bootm 0x21000000"
130: """]]
131:
132: ## Overscan compensation
1.8 wiki 133:
134: If you have ODROID-C1 plugged into a TV, the edges of the screen may not be visible. You can scale down the framebuffer console with the **hw.genfb0.scale** sysctl, e.g.:
135:
136: [[!template id=programlisting text="""
137: # sysctl -w hw.genfb0.scale=95
138: """]]
139:
140: Setting *scale* to 100 disables scaling, any other value enables the scaler. Values between 10 and 100 are allowed.
141:
142: To set this value at boot, you can add **fb.scale=95** to the kernel cmdline options in *boot.ini*.
143:
1.12 ! wiki 144: # Documentation
! 145:
! 146: Amlogic S805 datasheet: <http://dn.odroid.com/S805/Datasheet/S805_Datasheet%20V0.8%2020150126.pdf>
! 147:
1.1 wiki 148: # ODROID-C1 UART pins
149:
150: From [ODROID Forum](http://forum.odroid.com/viewtopic.php?f=115&t=7684):
151:
152: [[!template id=programlisting text="""
153: ___UART____
154: |Pin 4 - GND|
155: |Pin 3 - RXD|
156: |Pin 2 - TXD|
157: |Pin 1 - VCC|
158: \___________|
159:
160: 3.3V LVTTL
161: """]]
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