Annotation of wikisrc/ports/evbarm/odroid-c1.mdwn, revision 1.15

1.1       wiki        1: [[!meta title="NetBSD/evbarm on Hardkernel ODROID-C1"]]
                      2: 
1.13      wiki        3: [ODROID-C1](http://www.hardkernel.com/main/products/prdt_info.php?g_code=G141578608433&tab_idx=1) is a $35 quad-core SBC from Hardkernel. ODROID-C1 support was introduced in NetBSD 7.0.
                      4: 
1.1       wiki        5: [[!toc levels=2]]
                      6: 
1.2       wiki        7: # Supported hardware
1.6       wiki        8:  - CPU: Cortex-A5: Amlogic S805 (4-core) at 1.5GHz
1.2       wiki        9:    - CPU frequency scaling is supported with machdep.cpu sysctl tree
                     10:    - SMP supported
                     11:    - PL310 L2 cache controller
                     12:  - GIC
                     13:  - A5 watchdog timer
                     14:  - A5 global timer
                     15:  - SD/MMC controller (DMA)
                     16:  - Serial console
1.7       wiki       17:  - Framebuffer console
1.2       wiki       18:  - USB host (OTG)
                     19:  - Gigabit Ethernet (GMAC)
                     20:    - RTL8211F PHY
                     21:  - Hardware random number generator
1.11      wiki       22:  - RTC
1.15    ! wiki       23:  - GPIO
1.2       wiki       24: 
                     25: # TODO
                     26:  - USB device mode
                     27:  - Simultaneous SD card and eMMC usage
                     28:  - SD/MMC UHS-I support (needs sdmmc(4) changes)
                     29:  - IR receiver
                     30:  - I2C
1.7       wiki       31:  - Audio
1.2       wiki       32: 
                     33: # Installation
                     34: 
                     35: * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beagleboard.img*
                     36: * Build U-Boot for ODROID-C1 <https://github.com/hardkernel/u-boot/tree/odroidc-v2011.03>
1.3       wiki       37:   * Pre-built binaries here: <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/odroidc1/u-boot-odroidc-v2011.03-20150308.tar.gz>
1.4       wiki       38: * Note the location and size of the FFS partition in the *beagleboard.img* disklabel:
                     39: [[!template  id=programlisting text="""
                     40: # $TOOLDIR/bin/nbdisklabel -M evbarm -B le beagleboard.img
                     41: ...
                     42: 8 partitions:
                     43: #        size    offset     fstype [fsize bsize cpg/sgs]
                     44:  a:   1359312    385024     4.2BSD      0     0     0  # (Cyl.    188 -    851*)
                     45:  b:    262144    122880       swap                     # (Cyl.     60 -    187)
                     46:  c:   1744336         0     unused      0     0        # (Cyl.      0 -    851*)
                     47:  d:   1744336         0     unused      0     0        # (Cyl.      0 -    851*)
                     48:  e:    114688      8192      MSDOS                     # (Cyl.      4 -     59)
                     49: """]]
1.2       wiki       50: * Write the bootloader to the empty space at the start of the base image:
                     51: [[!template  id=programlisting text="""
                     52: # dd if=bl1.bin.hardkernel of=beagleboard.img bs=1 count=442 conv=notrunc
                     53: # dd if=bl1.bin.hardkernel of=beagleboard.img bs=512 skip=1 seek=1 conv=notrunc
                     54: # dd if=u-boot.bin of=beagleboard.img bs=512 seek=64 conv=notrunc
                     55: """]]
1.4       wiki       56: * Since the bootloader has overwritten the disklabel, we need to re-add partition "a" from the disklabel to the MBR partition table:
                     57: [[!template  id=programlisting text="""
                     58: # $TOOLDIR/bin/armv7--netbsdelf-eabihf-fdisk -u beagleboard.img
                     59: ...
                     60: Which partition do you want to change?: [none] 1
                     61: The data for partition 1 is:
                     62: <UNUSED>
                     63: sysid: [0..255 default: 169] 
                     64: start: [0..109cyl default: 63, 0cyl, 0MB] 385024
                     65: size: [0..85cyl default: 1359312, 85cyl, 664MB] 1359312
                     66: ...
                     67: Which partition do you want to change?: [none] 
                     68: ...
                     69: Should we write new partition table? [n] y
                     70: """]]
1.2       wiki       71: * Write the image to an SD card.
                     72: * Copy the kernel (netbsd.ub) for your board to the root of the MS-DOS partition on the SD card.
1.9       wiki       73: * Create or edit *boot.ini* on the MS-DOS partition:
1.2       wiki       74: [[!template  id=programlisting text="""
                     75: ODROIDC-UBOOT-CONFIG
                     76: 
1.4       wiki       77: setenv bootargs "root=ld0f awge0.mac-address=${ethaddr}"
1.2       wiki       78: setenv bootcmd "fatload mmc 0:1 0x21000000 netbsd.ub; bootm 0x21000000"
                     79: run bootcmd
                     80: """]]
1.5       wiki       81: * 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       82: [[!template  id=programlisting text="""
                     83: # fdisk -u ld0
                     84: ...
                     85: Which partition do you want to change?: [none] 1
                     86: The data for partition 1 is:
                     87: NetBSD (sysid 169)
                     88:     start 385024, size 1359312 (664 MB, Cyls 23/246/32-108/147/55)
                     89:         PBR is not bootable: All bytes are identical (0x00)
                     90: sysid: [0..255 default: 169]
                     91: start: [0..966cyl default: 385024, 24cyl, 188MB]
                     92: size: [0..942cyl default: 1359312, 85cyl, 664MB] $
                     93: ...
                     94: Which partition do you want to change?: [none]
                     95: ...
                     96: Should we write new partition table? [n] y
                     97: # resize_ffs -y /dev/rld0f
                     98: # reboot
                     99: """]]
                    100: * Next boot, create a new /etc/fstab:
                    101: [[!template  id=programlisting text="""
                    102: # mount -u -o rw /dev/ld0f /
                    103: # cat > /etc/fstab << EOF
                    104: /dev/ld0f       /               ffs     rw      1 1
                    105: /dev/ld0e       /boot           msdos   rw      1 1
                    106: kernfs          /kern           kernfs  rw
                    107: ptyfs           /dev/pts        ptyfs   rw
                    108: procfs          /proc           procfs  rw
                    109: tmpfs           /var/shm        tmpfs   rw,-m1777,-sram%25
                    110: EOF
                    111: # reboot
                    112: """]]
1.2       wiki      113: 
1.9       wiki      114: # HDMI
                    115: 
1.10      wiki      116: ## Framebuffer console
                    117: 
                    118: Simply add **console=fb** to the *bootargs* variable in *boot.ini*.
                    119: 
1.9       wiki      120: ## Video mode
                    121: 
                    122: HDMI video mode can be selected in U-Boot with the *video* command, e.g.:
                    123: 
                    124: [[!template  id=programlisting text="""
                    125: odroidc#video dev open 1080P
                    126: """]]
                    127: 
                    128: To make this change permanent, add it to the *bootcmd* variable in *boot.ini*:
                    129: 
                    130: [[!template  id=programlisting text="""
                    131: setenv bootcmd "video dev open 1080P; fatload mmc 0:1 0x21000000 netbsd.ub; bootm 0x21000000"
                    132: """]]
                    133: 
1.14      wiki      134: ## 16 or 24 bpp?
                    135: 
                    136: ODROID-C1 defaults to 16bpp. If you want to try 24bpp, add **fb.depth=24** to the kernel cmdline options in *boot.ini*. There are some issues with 24bpp mode and Xorg; see <http://gnats.netbsd.org/49812>.
                    137: 
1.9       wiki      138: ## Overscan compensation
1.8       wiki      139: 
                    140: 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.:
                    141: 
                    142: [[!template  id=programlisting text="""
                    143: # sysctl -w hw.genfb0.scale=95
                    144: """]]
                    145: 
                    146: Setting *scale* to 100 disables scaling, any other value enables the scaler. Values between 10 and 100 are allowed.
                    147: 
                    148: To set this value at boot, you can add **fb.scale=95** to the kernel cmdline options in *boot.ini*.
                    149: 
1.15    ! wiki      150: # SYS_LED
        !           151: 
        !           152: The blue SYS_LED on the board is wired to GPIOAO_13. To control the LED from userland, set **gpio=YES** in rc.conf and add this to */etc/gpio.conf*:
        !           153: 
        !           154: [[!template  id=programlisting text="""
        !           155: gpio4 13 set out sys_led
        !           156: """]]
        !           157: 
        !           158: After rebooting, the LED state can be controlled with [[!template id=man name="gpioctl" section="8"]].
        !           159: 
        !           160: [[!template  id=programlisting text="""
        !           161: # turn the light on
        !           162: gpioctl gpio4 sys_led on
        !           163: 
        !           164: # turn the light off
        !           165: gpioctl gpio4 sys_led off
        !           166: 
        !           167: # toggle the light state
        !           168: gpioctl gpio4 sys_led toggle
        !           169: """]]
        !           170: 
1.12      wiki      171: # Documentation
                    172: 
                    173: Amlogic S805 datasheet: <http://dn.odroid.com/S805/Datasheet/S805_Datasheet%20V0.8%2020150126.pdf>
                    174: 
1.1       wiki      175: # ODROID-C1 UART pins
                    176: 
                    177: From [ODROID Forum](http://forum.odroid.com/viewtopic.php?f=115&t=7684):
                    178: 
                    179: [[!template  id=programlisting text="""
                    180:  ___UART____
                    181: |Pin 4 - GND|
                    182: |Pin 3 - RXD|
                    183: |Pin 2 - TXD|
                    184: |Pin 1 - VCC|
                    185: \___________|
                    186: 
                    187: 3.3V LVTTL
                    188: """]]

CVSweb for NetBSD wikisrc <wikimaster@NetBSD.org> software: FreeBSD-CVSweb