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Diff for /wikisrc/ports/evbarm/odroid-c1.mdwn between versions 1.20 and 1.33

-version 1.20, 2015/10/28 18:05:41
+version 1.33, 2021/02/19 23:07:31
  Line 1
- [[!meta title="NetBSD/evbarm on Hardkernel ODROID-C1"]]
+ [[!meta title="NetBSD/evbarm on Hardkernel ODROID-C1 and ODROID-C1+"]]
- [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.
+ [ODROID-C1](https://www.hardkernel.com/shop/odroid-c1-2/) 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+](https://www.hardkernel.com/shop/odroid-c1/), which is supported by the same NetBSD kernel.
  [[!toc levels=2]]
  Line 10
     - SMP supported
     - PL310 L2 cache controller
   - GIC
-  - A5 watchdog timer
   - A5 global timer
+  - Watchdog timer
   - "SDHC" and "SDIO" SD/MMC controllers (DMA)
   - Serial console
   - Framebuffer console
  Line 28
   - I2C
   - Audio
- # Installation
+ # Installation (NetBSD 8.0 and later)
+ * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *armv7.img*, the latest is [[here|https://nycdn.netbsd.org/pub/NetBSD-daily/HEAD/latest/evbarm-earmv7hf/binary/gzimg/armv7.img]].
+ * Build U-Boot for ODROID-C1 <hhttps://github.com/jaredmcneill/u-boot-odroid>
+   * Pre-built binaries here:
+    <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/odroidc1/u-boot-odroidc-v2011.03-20150308.tar.gz>
+    <http://www.netbsd.org/~jmcneill/u-boot.bin.odroidc1>
+ * Write the bootloader to the empty space at the start of the base image:
+ [[!template  id=programlisting text="""
+ # 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.odroidc1 of=armv7.img bs=512 seek=64 conv=notrunc
+ """]]
+ * Write the image to an SD card.
+ * Tested 2021-02-19 with NetBSD-current, christos
+ # Installation (NetBSD 7.0/7.1)
  * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *armv7.img*
  * Build U-Boot for ODROID-C1 <https://github.com/hardkernel/u-boot/tree/odroidc-v2011.03>
    * Pre-built binaries here: <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/odroidc1/u-boot-odroidc-v2011.03-20150308.tar.gz>
- * Note the location and size of the FFS partition in the * armv7.img* disklabel:
+ * Note the location and size of the FFS partition in the *armv7.img* disklabel:
  [[!template  id=programlisting text="""
  # $TOOLDIR/bin/nbdisklabel -M evbarm -B le armv7.img
  ...
- Line 67  Which partition do you want to change?:
+ Line 83  Which partition do you want to change?:
  Should we write new partition table? [n] y
  """]]
  * Write the image to an SD card.
- * Copy the kernel (netbsd.ub) for your board to the root of the MS-DOS partition on the SD card.
+ * Edit *boot.ini* on the MS-DOS partition. Note that the default boot.ini has `console=fb` in `bootargs`, which you should remove if you want serial console:
- * Create or edit *boot.ini* on the MS-DOS partition:
  [[!template  id=programlisting text="""
  ODROIDC-UBOOT-CONFIG
- setenv bootargs "root=ld0f awge0.mac-address=${ethaddr}"
+ setenv bootargs "root=ld0f awge0.mac-address=${ethaddr} console=fb"
  setenv bootcmd "fatload mmc 0:1 0x21000000 netbsd.ub; bootm 0x21000000"
  run bootcmd
  """]]
  * On first boot, it will stop because of the wrong device in /etc/fstab. Take this opportunity to grow the root file-system:
  [[!template  id=programlisting text="""
  # fdisk -u ld0
- Line 166  gpioctl gpio4 sys_led off
+ Line 182  gpioctl gpio4 sys_led off
  gpioctl gpio4 sys_led toggle
  """]]
+ # U-Boot Environment
+ To read/write U-Boot environment variables from NetBSD, download and compile the following program: <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/odroidc1/uenv.c>
+ # Automatically booting a backup kernel
+ *These instructions assume the kernels live on eMMC. Adjust devices accordingly for SD card setup.*
+ To setup an ODROID-C1 to fall back to a recovery kernel in the event of a boot failure, install the recovery kernel as /boot/onetbsd.ub.
+ Create /boot/boot.ini as follows:
+ [[!template  id=programlisting text="""
+ ODROIDC-UBOOT-CONFIG
+ setenv bootargs "root=ld0f awge0.mac-address=${ethaddr}"
+ fatload mmc 0:1 0x22000000 boot.scr
+ source 0x22000000
+ """]]
+ Create /boot/boot.txt:
+ [[!template  id=programlisting text="""
+ # regenerate with:
+ #  mkubootimage -A arm -C none -O netbsd -T script -a 0 -n "NetBSD/odroidc1 boot" boot.txt boot.scr
+ setenv rescue_kernel "onetbsd.ub"
+ setenv kernel "netbsd.ub"
+ if test ${boot_rescue} = false; then
+   setenv boot_rescue true
+   saveenv
+   fatload mmc 0:1 0x21000000 ${kernel}
+   mw.l c1109900 0f08ffff        # arm watchdog
+   bootm 0x21000000
+ else
+   fatload mmc 0:1 0x21000000 ${rescue_kernel}
+   bootm 0x21000000
+ fi
+ """]]
+ Generate boot.scr from boot.txt:
+ [[!template  id=programlisting text="""
+ mkubootimage -A arm -C none -O netbsd -T script -a 0 -n "NetBSD/odroidc1 boot" /boot/boot.txt /boot/boot.scr
+ """]]
+ Install the **uenv** tool from above and add the following to root's crontab:
+ [[!template  id=programlisting text="""
+ @reboot                                 /usr/local/sbin/uenv ld0 boot_rescue false
+ """]]
  # Documentation
  Amlogic S805 datasheet: <http://dn.odroid.com/S805/Datasheet/S805_Datasheet%20V0.8%2020150126.pdf>
- Line 184  From [ODROID Forum](http://forum.odroid.
+ Line 248  From [ODROID Forum](http://forum.odroid.
 .3V LVTTL
  """]]

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