boundary/nitrogen6x/README.mx6qsabrelite

1 U-Boot for the Freescale i.MX6q SabreLite board
3 This file contains information for the port of U-Boot to the Freescale
6 1. Boot source, boot from SD card
7 ---------------------------------
9 The recent mainline U-Boot for the Freescale i.MX6q SabreLite board supports
10 boot from SD card only. However, by default, the SabreLite
11 boards boot from the SPI NOR flash. These boards need to be reflashed with
12 a small SD card loader to support boot from SD card. This small SD card loader
13 will be flashed into the SPI NOR. The board will still boot from SPI NOR, but
14 the loader will in turn request the BootROM to load the U-Boot from SD card.
16 The SD card loader is available from
20 under a open-source 3-clause BSD license.
22 To update the SPI-NOR on the SabreLite board without the Freescale
25 1. Write this SD card loader onto a large SD card using:
31 Note: This writes SD card loader at address 0
34 the board). Make sure SW1 switch is at position "00", so that it can boot
37 3. Power-up the SabreLite, press 'space' to enter command mode in the U-Boot
41  MX6Q SABRELITE U-Boot > mmc dev 0
42  MX6Q SABRELITE U-Boot > mmc read 0x10800000 0 200
43  MX6Q SABRELITE U-Boot > sf probe
44  MX6Q SABRELITE U-Boot > sf erase 0 0x40000
45  MX6Q SABRELITE U-Boot > sf write 0x10800000 0 0x40000
50 the Freescale manufacturing tool in order to reflash the SPI-NOR.
53       the micro SD4/BOOT slot on the top of the board. I.e. you have to use
61 --------
63 To build U-Boot for the SabreLite board:
68 To copy the resulting u-boot.imx to the SD card:
70  sudo dd if=u-boot.imx of=/dev/sXx bs=512 seek=2&&sudo sync