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| author | Felix Singer <felix.singer@9elements.com> | 2019-05-22 18:32:46 +0200 |
|---|---|---|
| committer | Patrick Rudolph <siro@das-labor.org> | 2019-06-17 14:26:42 +0000 |
| commit | 9b7e990d18d5f6212df6ea967428c28b802e1b64 (patch) | |
| tree | 213c9755fa5ff12865fed7a80b5db57c3539d320 /Documentation/mainboard/up/squared/index.md | |
| parent | 9065657957f5cb8c5a02695af7528263cfdceeaa (diff) | |
doc/mb/upsquared: Add documentation
This patch adds documentation about the UP² mainboard
and the IFWI used by Apollolake platform.
Change-Id: Ic708ddbd2616eee4e5ec2740b3eac18b408bde38
Signed-off-by: Felix Singer <felix.singer@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32935
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Diffstat (limited to 'Documentation/mainboard/up/squared/index.md')
| -rw-r--r-- | Documentation/mainboard/up/squared/index.md | 102 |
1 files changed, 86 insertions, 16 deletions
diff --git a/Documentation/mainboard/up/squared/index.md b/Documentation/mainboard/up/squared/index.md index dcf3ed192d..9242f76d8d 100644 --- a/Documentation/mainboard/up/squared/index.md +++ b/Documentation/mainboard/up/squared/index.md @@ -7,6 +7,12 @@ ### Bottom ![][overview_bottom] +* **Legend** + * [BLUE][header_cn16_link]: UART0 / USB connector + * [GREEN][header_gpio_link]: UART1 / GPIO header + * [RED][header_cn22_link]: SPI header + * YELLOW: Indicates pin 1 + ## Mainboard components ### Platform ```eval_rst @@ -46,6 +52,79 @@ +---------------------+------------+ ``` +### Debugging +#### UART0 (CN16) +This connector is located on the **bottom** side (see [here][overview_bottom_link]). +![][header_cn16] + + +#### UART1 (GPIO header) +The GPIO header is located on the **bottom** side (see [here][overview_bottom_link]). +![][header_gpio] + +## Building and flashing coreboot +### Using the SPI header +The SPI header is located on the **bottom** side (see [here][overview_bottom_link]). +![][header_cn22] + +### Preperations +In order to build coreboot, it's neccessary to extract some files from the vendor firmware. Make sure that you have a fully working dump. +```bash +[upsquared]$ ls +firmware_vendor.rom +``` + +```bash +[upsquared]$ mkdir extracted && cd extracted +[extracted]$ ifdtool -x ../firmware_vendor.rom +File ../firmware_vendor.rom is 16777216 bytes +Peculiar firmware descriptor, assuming Ibex Peak compatibility. + Flash Region 0 (Flash Descriptor): 00000000 - 00000fff + Flash Region 1 (BIOS): 00001000 - 00efefff + Flash Region 2 (Intel ME): 07fff000 - 00000fff (unused) + Flash Region 3 (GbE): 07fff000 - 00000fff (unused) + Flash Region 4 (Platform Data): 07fff000 - 00000fff (unused) + Flash Region 5 (Reserved): 00eff000 - 00ffefff + Flash Region 6 (Reserved): 07fff000 - 00000fff (unused) + Flash Region 7 (Reserved): 07fff000 - 00000fff (unused) + Flash Region 8 (EC): 07fff000 - 00000fff (unused) +``` + +```bash +flashregion_0_flashdescriptor.bin +flashregion_1_bios.bin +flashregion_5_reserved.bin +``` + +### Clean up +```bash +[coreboot]$ make distclean +``` + +### Configuring +```bash +[coreboot]$ touch .config +[coreboot]$ ./util/scripts/config --enable VENDOR_UP +[coreboot]$ ./util/scripts/config --enable BOARD_UP_SQUARED +[coreboot]$ ./util/scripts/config --enable NEED_IFWI +[coreboot]$ ./util/scripts/config --enable HAVE_IFD_BIN +[coreboot]$ ./util/scripts/config --set-str IFWI_FILE_NAME "<flashregion_1_bios.bin>" +[coreboot]$ ./util/scripts/config --set-str IFD_BIN_PATH "<flashregion_0_flashdescriptor.bin>" +[coreboot]$ make olddefconfig +``` + +### Building +```bash +[coreboot]$ make +``` + +Now you should have a working and ready to use coreboot build at `build/coreboot.rom`. + +### Flashing +```bash +[coreboot]$ flashrom -p <your_programmer> -w build/coreboot.rom +``` + ## Board status ### Working - bootblock, romstage, ramstage @@ -78,22 +157,13 @@ - mini PCIe - flashing with flashrom internally using Linux -## Building and flashing coreboot -### Building - -```bash -make distclean -touch .config -./util/scripts/config --enable VENDOR_UP -./util/scripts/config --enable BOARD_UP_SQUARED -./util/scripts/config --enable NEED_IFWI -./util/scripts/config --enable HAVE_IFD_BIN -./util/scripts/config --set-str IFWI_FILE_NAME "<path_to_your_bios_region>" -./util/scripts/config --set-str IFD_BIN_PATH "<path_to_your_ifd_region>" -make olddefconfig -``` - -### Flashing +[header_cn16]: header_cn16_10pin_uart0.svg +[header_cn16_link]: #uart0-cn16 +[header_cn22]: header_cn22_12pin_spi.svg +[header_cn22_link]: #using-the-spi-header +[header_gpio]: header_40pin_gpio_uart1.svg +[header_gpio_link]: #uart1-gpio-header [overview_top]: top.jpg [overview_bottom]: bottom.jpg +[overview_bottom_link]: #bottom |