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Stefan Roese73606402015-10-20 15:14:47 +02001Update from original Marvell U-Boot to mainline U-Boot:
2-------------------------------------------------------
3
4Generate the U-Boot image with these commands:
5
6$ make clearfog_defconfig
7$ make
8
9The resulting image including the SPL binary with the
Pali Rohárdf71c312022-11-02 18:51:28 +010010full DDR setup is "u-boot-with-spl.kwb".
Stefan Roese73606402015-10-20 15:14:47 +020011
12Now all you need to do is copy this image on a SD card.
13For example with this command:
14
Pali Rohárdf71c312022-11-02 18:51:28 +010015$ sudo dd if=u-boot-with-spl.kwb of=/dev/sdX bs=512 seek=1
Stefan Roese73606402015-10-20 15:14:47 +020016
17Please use the correct device node for your setup instead
18of "/dev/sdX" here!
Baruch Siach67732a12017-09-24 15:50:18 +030019
Baruch Siache8c193e2019-03-25 09:09:00 +020020Install U-Boot on eMMC:
21-----------------------
22
Baruch Siache8c193e2019-03-25 09:09:00 +020023To make SPL load the main U-Boot image from the eMMC boot partition enable
24eMMC boot acknowledgement and boot partition with the following U-Boot
25command:
26
27 mmc partconf 0 1 1 0
28
29Install U-Boot on eMMC boot partition from Linux running on Clearfog:
30
31 echo 0 > /sys/block/mmcblk0boot0/force_ro
Pali Rohárdf71c312022-11-02 18:51:28 +010032 dd if=u-boot-with-spl.kwb of=/dev/mmcblk0boot0
Baruch Siache8c193e2019-03-25 09:09:00 +020033
34Note that the SD card is not accessible when the Clearfog SOM has eMMC.
35Consider initial boot from UART (see below).
36
Baruch Siach1348c032019-05-16 13:04:03 +030037Install U-Boot on SATA:
38-----------------------
39
40When loading the main U-Boot image from raw SATA sector, set
41CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR to 0x141.
42
Florian Klink5d747032017-12-23 01:42:48 +010043Boot selection:
44---------------
45
46Before powering up the board, boot selection should be done via the SW1 dip
47switch (0: OFF, 1: ON):
48
49 - SPI: 00010
50 - SD/eMMC: 00111
51 - M.2 SSD: 11100
52 - UART: 01001 [1]
53
54[1]: According to SolidRun's manual, 11110 should be used for UART booting on
55 the ClearFog 'Pro' variant.
56 However, this doesn't work (anymore) at least on Rev. 2.1 (but '01001' as
57 mentionend for the 'Base' variant does).
58
Baruch Siach67732a12017-09-24 15:50:18 +030059Boot from UART:
60---------------
61
62Connect the on-board micro-USB (CF Pro: CON11, CF Base: CON5)
63to your host.
64
Florian Klink5d747032017-12-23 01:42:48 +010065Set the SW1 DIP switches to UART boot (see above).
Baruch Siach67732a12017-09-24 15:50:18 +030066
67Run the following command to initiate U-Boot download:
68
Pali Rohárdf71c312022-11-02 18:51:28 +010069 ./tools/kwboot -b u-boot-with-spl.kwb /dev/ttyUSBX
Baruch Siach67732a12017-09-24 15:50:18 +030070
71Use the correct UART device node for /dev/ttyUSBX.
72
73When download finishes start your favorite terminal emulator
74on /dev/ttyUSBX.