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| -rw-r--r-- | docs/install/rpi_setup.md | 59 |
1 files changed, 28 insertions, 31 deletions
diff --git a/docs/install/rpi_setup.md b/docs/install/rpi_setup.md index 5665ed40..23b99aae 100644 --- a/docs/install/rpi_setup.md +++ b/docs/install/rpi_setup.md @@ -2,25 +2,22 @@ title: How to program an SPI flash chip with the Raspberry Pi ... -This document exists as a guide for reading from or writing to an SPI -flash chip with the Raspberry Pi, using the -[flashrom](http://flashrom.org/Flashrom) software. Most revisions of the -RPi should work. +This document exists as a guide for reading from or writing to an SPI flash +chip with the Raspberry Pi, using the [flashrom](http://flashrom.org/Flashrom) +software. Most revisions of the RPi should work. The Libreboot project recommends using [blobless GNU+Linux](https://blog.rosenzweig.io/blobless-linux-on-the-pi.html) -on the Raspberry Pi, to avoid having to run non-free software. This -only became possible in February 2017 and the instructions below are -not yet updated with the necessary steps, so please do not follow the -steps below unless you are willing to run non-free software on your -Raspberry Pi. +on the Raspberry Pi, to avoid having to run non-free software. This only became +possible in February 2017 and the instructions below are not yet updated with +the necessary steps, so please do not follow the steps below unless you are +willing to run non-free software on your Raspberry Pi. -This only covers SOIC-8 flash chips, for now. SOIC-16 guide coming later -(for now, it should be easy enough for you to figure this out for -SOIC-16). +This only covers SOIC-8 flash chips, for now. SOIC-16 guide coming later (for +now, it should be easy enough for you to figure this out for SOIC-16). -[](#raspberry-pi-thinkpad-x60t60-and-macbook-21){#user-content-raspberry-pi-thinkpad-x60t60-and-macbook-21 .anchor}Raspberry Pi (ThinkPad X60/T60 and Macbook 2,1) ------------------------------------------------------------------------------------------------------------------------------------------------------------------- +Raspberry Pi (ThinkPad X60/T60 and Macbook 2,1) +------------------------------------------------ The Raspberry Pi (a multipurpose \$25 GNU+Linux computer) can be used as a BIOS flashing tool, thanks to its GPIO pins and SPI support. @@ -28,7 +25,7 @@ a BIOS flashing tool, thanks to its GPIO pins and SPI support. > **Note:** The Raspberry Pi Model A is not supported, since it has no > GPIO pins. -### [](#disassembling-the-thinkpad){#user-content-disassembling-the-thinkpad .anchor}Disassembling the ThinkPad +### Disassembling the ThinkPad Follow the [X60 Hardware Maintenance Manual](http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/42x3550_04.pdf) @@ -45,7 +42,7 @@ Guide](t60_unbrick.md). - On the T60, the BIOS chip is just under the palmrest, but blocked by a magnesium frame (which you will have to remove). -### [](#pomona-clip-pinout){#user-content-pomona-clip-pinout .anchor}Pomona Clip Pinout +### Pomona Clip Pinout Diagram of the 26 GPIO Pins of the Raspberry Pi Model B (for the Model B+ with 40 pins, start counting from the right and leave 14 pins): @@ -78,7 +75,7 @@ detect a chip, or it will "detect" a `0x0` chip. Finally, make sure that the Pomona clip makes contact with the metal wires of the chip. It can be a challenge, but keep trying. -### [](#how-to-supply-power-to-the-flashchip){#user-content-how-to-supply-power-to-the-flashchip .anchor}How to supply power to the flashchip +### How to supply power to the flashchip There are two ways to supply power to the chip: plugging in an AC adapter (without turning the laptop on), and using the 8th 3.3v pin. @@ -90,8 +87,8 @@ Macronix chips require an AC Adapter to power up. Your results may vary. -[](#reading-the-flashchip){#user-content-reading-the-flashchip .anchor}Reading the Flashchip --------------------------------------------------------------------------------------------- +Reading the Flashchip +---------------------- First, visually inspect (with a magnifying glass) the type of flashchip on the motherboard. @@ -127,8 +124,8 @@ If the md5sums match after three tries, `flashrom` has managed to read the flashchip precisely (but not always accurately). You may try and flash Libreboot now. -[](#flashing-libreboot){#user-content-flashing-libreboot .anchor}Flashing Libreboot ------------------------------------------------------------------------------------ +Flashing Libreboot +------------------- > **Note:** replace `/path/to/libreboot.rom` with the location of your > chosen ROM, such as `../bin/x60/libreboot_usqwerty.rom`): @@ -148,7 +145,7 @@ successfully. If not, just flash again. Erasing and writing flash chip... Erase/write done. Verifying flash... VERIFIED. -### [](#sources){#user-content-sources .anchor}Sources +### Sources - [Scruss - Simple ADC with the Raspberry Pi](http://scruss.com/blog/2013/02/02/simple-adc-with-the-raspberry-pi/) @@ -163,7 +160,7 @@ successfully. If not, just flash again. - [rPI with Flashrom and SOIC Clip Powerpoint](http://satxhackers.org/wp/hack-content/uploads/2013/04/rPI_flashrom.pdf) -### [](#raspberry-pi-pinout-diagrams){#user-content-raspberry-pi-pinout-diagrams .anchor}Raspberry Pi Pinout Diagrams +### Raspberry Pi Pinout Diagrams MCP 3008 Pin Pi GPIO Pin \# Pi Pin Name ----- ---------- ---------------- -------------------- @@ -179,10 +176,10 @@ successfully. If not, just flash again. - Source: [Perl & Raspberry Pi - Raspberry Pi GPIO Pinout](http://raspberrypi.znix.com/hipidocs/topic_gpiopins.htm) -[](#raspberry-pi-thinkpad-x200){#user-content-raspberry-pi-thinkpad-x200 .anchor}Raspberry Pi (ThinkPad X200) -------------------------------------------------------------------------------------------------------------- +Raspberry Pi (ThinkPad X200) +----------------------------- -### [](#requirements){#user-content-requirements .anchor}Requirements: +### Requirements: - An x86, x86\_64, or arm7l (for changing the libreboot.rom image mac address) @@ -229,7 +226,7 @@ Install Noobs to your fat32 formatted SD card x86# cp -R ~/work/noobs/* /path/to/mounted/SDcard/ -### [](#set-up-noobs-on-raspberry-pi){#user-content-set-up-noobs-on-raspberry-pi .anchor}Set up NOOBS on Raspberry Pi +### Set up NOOBS on Raspberry Pi Plug in the NOOBs SDCard to your Raspberry Pi, and enable the following under 'Advanced Options': @@ -353,8 +350,8 @@ done. Shut down your pi, put your box back together, and install a libre OS for great good! -[](#raspberry-pi-c720-chromebook){#user-content-raspberry-pi-c720-chromebook .anchor}Raspberry Pi (C720 Chromebook) -------------------------------------------------------------------------------------------------------------------- +Raspberry Pi (C720 Chromebook) +------------------------------- The Raspberry Pi (a multipurpose \$25 GNU+Linux computer) can be used as a BIOS flashing tool, thanks to its GPIO pins and SPI support. @@ -408,12 +405,12 @@ Finally, put the Pomona SOIC clip on the chip:  -### [](#flashrom){#user-content-flashrom .anchor}Flashrom +### Flashrom [Once it's all set up, flashrom works out of the box.](http://www.flashrom.org/RaspberryPi) -### [](#sources-1){#user-content-sources-1 .anchor}Sources +### Sources - **Pomona SOIC Clip flashing** - [Arch Linux Wiki - Installing Arch Linux on |