--- wikisrc/ports/evbarm/odroid-c1.mdwn 2015/03/29 21:29:58 1.13 +++ wikisrc/ports/evbarm/odroid-c1.mdwn 2015/10/28 18:05:41 1.20 @@ -1,6 +1,6 @@ [[!meta title="NetBSD/evbarm on Hardkernel ODROID-C1"]] -[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. +[ODROID-C1](http://www.hardkernel.com/main/products/prdt_info.php?g_code=G141578608433&tab_idx=1) was a $35 quad-core SBC from Hardkernel. ODROID-C1 support was introduced in NetBSD 7.0. It has been succeeded by the [ODROID-C1+](http://www.hardkernel.com/main/products/prdt_info.php?g_code=G143703355573), which is supported by the same NetBSD kernel. [[!toc levels=2]] @@ -12,7 +12,7 @@ - GIC - A5 watchdog timer - A5 global timer - - SD/MMC controller (DMA) + - "SDHC" and "SDIO" SD/MMC controllers (DMA) - Serial console - Framebuffer console - USB host (OTG) @@ -20,24 +20,22 @@ - RTL8211F PHY - Hardware random number generator - RTC + - GPIO # TODO - USB device mode - - Simultaneous SD card and eMMC usage - - SD/MMC UHS-I support (needs sdmmc(4) changes) - IR receiver - - GPIO - I2C - Audio # Installation -* Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beagleboard.img* +* Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *armv7.img* * Build U-Boot for ODROID-C1 * Pre-built binaries here: -* Note the location and size of the FFS partition in the *beagleboard.img* disklabel: +* Note the location and size of the FFS partition in the * armv7.img* disklabel: [[!template id=programlisting text=""" -# $TOOLDIR/bin/nbdisklabel -M evbarm -B le beagleboard.img +# $TOOLDIR/bin/nbdisklabel -M evbarm -B le armv7.img ... 8 partitions: # size offset fstype [fsize bsize cpg/sgs] @@ -49,13 +47,13 @@ """]] * Write the bootloader to the empty space at the start of the base image: [[!template id=programlisting text=""" -# dd if=bl1.bin.hardkernel of=beagleboard.img bs=1 count=442 conv=notrunc -# dd if=bl1.bin.hardkernel of=beagleboard.img bs=512 skip=1 seek=1 conv=notrunc -# dd if=u-boot.bin of=beagleboard.img bs=512 seek=64 conv=notrunc +# dd if=bl1.bin.hardkernel of=armv7.img bs=1 count=442 conv=notrunc +# dd if=bl1.bin.hardkernel of=armv7.img bs=512 skip=1 seek=1 conv=notrunc +# dd if=u-boot.bin of=armv7.img bs=512 seek=64 conv=notrunc """]] * Since the bootloader has overwritten the disklabel, we need to re-add partition "a" from the disklabel to the MBR partition table: [[!template id=programlisting text=""" -# $TOOLDIR/bin/armv7--netbsdelf-eabihf-fdisk -u beagleboard.img +# $TOOLDIR/bin/armv7--netbsdelf-eabihf-fdisk -u armv7.img ... Which partition do you want to change?: [none] 1 The data for partition 1 is: @@ -131,6 +129,10 @@ To make this change permanent, add it to setenv bootcmd "video dev open 1080P; fatload mmc 0:1 0x21000000 netbsd.ub; bootm 0x21000000" """]] +## 16 or 24 bpp? + +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 . + ## Overscan compensation 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.: @@ -143,6 +145,27 @@ Setting *scale* to 100 disables scaling, To set this value at boot, you can add **fb.scale=95** to the kernel cmdline options in *boot.ini*. +# SYS_LED + +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*: + +[[!template id=programlisting text=""" +gpio4 13 set out sys_led +"""]] + +After rebooting, the LED state can be controlled with [[!template id=man name="gpioctl" section="8"]]. + +[[!template id=programlisting text=""" +# turn the light on +gpioctl gpio4 sys_led on + +# turn the light off +gpioctl gpio4 sys_led off + +# toggle the light state +gpioctl gpio4 sys_led toggle +"""]] + # Documentation Amlogic S805 datasheet: