View source for Board:rca/rm4100

The RCA RM4100 was originally designed by Thomson Electronics and was called the IP1000. I was then manufactured by RCA and named the RM4100. It is a great little set-top-box for coreboot.

== Status ==

{{Status|

|CPU_status = OK
|CPU_comments = Mobile Intel(R) Celeron(TM) CPU 733MHz
|CPU_L1_status = OK
|CPU_L1_comments =
|CPU_L2_status = OK
|CPU_L2_comments = 256 KB
|CPU_L3_status = N/A
|CPU_multiple_status = N/A
|CPU_multicore_status = N/A
|CPU_virt_status = N/A

|RAM_EDO_status = N/A
|RAM_SDRAM_status = N/A
|RAM_SDRAM_comments = N/A
|RAM_SODIMM_status = OK
|RAM_SODIMM_comments = Onboard 128MB PC133
|RAM_DDR_status = N/A
|RAM_DDR2_status = N/A
|RAM_DDR3_status = N/A
|RAM_dualchannel_status = N/A
|RAM_ecc_status = N/A

|IDE_status = OK
|IDE_comments = Tested with hard drive
|IDE_25_status = OK
|IDE_25_comments = Tested with 2.5" hard drive and adapter
|IDE_CF_status = OK
|IDE_CF_comments = Works both with vendor BIOS and coreboot
|CDROM_DVD_status = OK

|SATA_status = N/A
|USB_status = OK
|USB_comments = Tested with USB Keyboard
|Onboard_VGA_status = OK
|Onboard_VGA_comments = VGA support in coreboot works fine
|Onboard_ethernet_status = OK
|Onboard_ethernet_comments = Onboard Intel 82562ET LAN On Motherboard (LOM) Design
|Onboard_audio_status = OK
|Onboard_audio_comments = 
|Onboard_modem_status = OK
|Onboard_firewire_status = N/A
|Smartcard_status = N/A
|Smartcard_comments = 
|Onboard_CF_status = OK
|Onboard_PCMCIA_status = N/A

|ISA_cards_status = N/A
|AMR_cards_status = N/A
|PCI_cards_status = N/A
|AGP_cards_status = N/A
|PCIE_x1_status = N/A
|PCIE_x2_status = N/A
|PCIE_x4_status = N/A
|PCIE_x8_status = N/A
|PCIE_x16_status = N/A
|PCIE_x32_status = N/A
|HTX_status = N/A

|Floppy_status = N/A
|COM1_status = OK
|COM2_status = OK
|COM2_comments = IR is connected to COM2
|PP_status = OK
|PP_comments = There is no actual Parallel connector, the Parallel is used to enable IR and control 3 LED's
|PS2_keyboard_status = N/A
|PS2_mouse_status = N/A
|Game_port_status = N/A
|IR_status = OK
|Speaker_status = N/A
|Speaker_comments = 
|DiskOnChip_status = N/A
|DiskOnChip_comments = 

|Sensors_status = OK
|Sensors_comments = lm_sensors uses I801, smsc47m192
|Watchdog_status = Untested
|CAN_bus_status = N/A
|CPUfreq_status = Untested
|CPUfreq_comments = 
|Powersave_status = WIP
|Powersave_comments = 
|ACPI_status = N/A
|Reboot_status = WIP
|Reboot_comments = 
|Poweroff_status = WIP
|Poweroff_comments = 
|LEDs_status = OK
|LEDs_comments = Controled by Parallel Port
|HPET_status = N/A
|RNG_status = N/A
|WakeOnModem_status = Untested
|WakeOnModem_comments = 
|WakeOnLAN_status = Untested
|WakeOnLAN_comments = Enabled on LOM Design, should work fine but untested
|WakeOnKeyboard_status = Untested
|WakeOnKeyboard_comments = Supported by the Super I/O but not implimented
|WakeOnMouse_status = N/A
|WakeOnMouse_comments = 
|Flashrom_status = WIP
|Flashrom_comments = 

}}

== Building a coreboot image ==

<b>Before building coreboot for the RCA RM4100 there are a few settings to consider.</b>

1. Do you want to use VGA for your application?<br>
You have the ability to build a �headless� version of coreboot that will only output to the serial console.

<b>For a �headless� build follow these instructions:</b><br>
Edit targets/rca/rm4100/Config.lb<br>
Change: 
 # option ROM_SIZE = 1024 * 1024 
to 
 option ROM_SIZE = 1024 * 1024 
and change 
 option ROM_SIZE = (1024 * 1024) - (64 * 1024) 
to 
 # option ROM_SIZE = (1024 * 1024) - (64 * 1024)
Change: 
 option CONFIG_CONSOLE_VGA = 1 and option CONFIG_PCI_ROM_RUN = 1 
to 0

Change: 
 option CONFIG_VIDEO_MB = 8 
to 0

Edit src/mainboard/rca/rm4100/Config.lb<br>
Comment out these lines so it looks like this: 
 #    chip drivers/pci/onboard		# Onboard VGA
      device pci 2.0 on end		# VGA (Intel 82830 CGC) 
 #      register "rom_address" = "0xfff00000" 
 #    end

<b>If you do want VGA</b> you can choose how much memory is pre-allocated for VGA. Possible options are:
 ## 0 for No memory pre-allocated (Graphics memory Disabled)
 ## 512 for DVMT (UMA) mode, 512K of memory pre-allocated for frame buffer
 ## 1 for DVMT (UMA) mode, 1M of memory pre-allocated for frame buffer
 ## 8 for DVMT (UMA) mode, 8M of memory pre-allocated for frame buffer
To adjust this edit targets/rca/rm4100/Config.lb and change option 
 CONFIG_VIDEO_MB = 
and change it to any of the options above. Note: Remember that if you do want VGA you will need the vga bios file (vga.rom).


2. Next you will need to prepare a payload. See the Payloads page for your options. For this Tutorial I will use filo to boot from a hard drive to Grub/Fedora Core 7. In the filo directory run 
 make 
like instructed in the INSTALL directions and then edit Config.
Change:
 MENULST_FILE = "hda3:/boot/filo/menu.lst"
to (menu.lst is a symlink to grub.conf and filo does not like that)
 MENULST_FILE = "hda1:/grub/grub.conf"
to boot to grub on the compact flash or
 MENULST_FILE = "hdc1:/grub/grub.conf"
to boot to grub on the harddrive (if you have the HD hack installed).

Change:
 #SERIAL_SPEED = 115200
to
 SERIAL_SPEED = 115200
to insure we get output to the serial console. That should be it. Now you can run 
 make 
again to build your payload elf file. Once that finishes copy filo.elf to the /tmp directory, or you can adjust targets/rca/rm4100/Config.lb to point to where filo.elf is.


3. Now we are ready to build core boot.
 cd ~/coreboot-v2/targets
 ./buildtarget rca/rm4100
 cd rca/rm4100/rm4100
 make
If your using VGA to now need to prepend your video bios to the coreboot.rom. Copy your vga bios file (vga.rom) to the ~/coreboot-v2/targets/rca/rm4100/rm4100 directory and then:
 cat vga.rom coreboot.rom > bios.bin


4. At last your ready to flash bios.bin to your RM4100. If this is the first time, meaning your rm4100 still has the original bios, you need to use the method on the RM4100 Customizing website to flash otherwise you can just use flashrom.