Quelltext der Seite Linux BSP customization for Qseven-i.MX537

[[Image:Qseven-logo.jpg|right|300px]]
[[Image:Qseven-i.MX537 V1 Top W300.png|right]]

This document describes various specifics of the '''Qseven-i.MX537''' (100-1500-X) module as far as the '''Bluetechnix MX53 Linux Board Support Package''' is concerned.

The Qseven-i.MX537 is supported since Linux BSP release 1.4.

= Debug UART adapter =
{{supporttable|Qseven-i.MX537| V1.0}}
It is possible (actually recommended) to access the Qseven-i.MX537's debug UART (MX53 UART 1) which is available via an adapter/breakout cable.

*Qseven-i.MX537 X3
**Mating connector e.g. Erni nr. 124043
*UART/USB or USB/RS232 adapter required
**[https://www.bluetechnix.com/rainbow2006/site/blackfin_family/__dev_tools/__usb_to_uart_converter/445/usb_to_uart_converter.aspx UART<-->USB]
**[https://www.bluetechnix.com/rainbow2006/site/blackfin_family/__dev_tools/__rs232_to_uart-converter/458/rs232_to_uart-converter.aspx UART<-->RS232]

Schematics: 

[[Image:Q7-MX53-uart-adapter.jpg|300px|border]]

= LTIB configuration =

*Start LTIB configuration
 ./ltib -c
*Choose the correct U-Boot target
 --- Choose your board for u-boot
     board (qseven-imx53)  --->
*Set correct UBIFS/NAND flash parameters
 --- Target Image Generation
 Options  --->
  (512KiB) ubifs physical erase block(PEB) size
  (520192) ubifs logical erase block(LEB) size in Bytes
  (4096) ubifs maximum logical erase block(LEB) count
  (4096) ubifs minimum I/O unit size
  (1024) ubifs sub-page size

= Deployment and boot modes =

For deployment, you may use the '''setup_sdcard.sh''' Linux shell script as described in the MX53 Software User Manual.

For the Qseven-i.MX537, the following deployment methods are supported:
*Boot from on-board SPI flash
:Use the SD card to set up SPI flash (U-Boot update; Linux kernel) and NAND flash (root file system), then boot from SPI flash
*Boot from USB/UART
:You may use e.g. the MfgTool for mass production.

= U-Boot configuration and implementation files =

The U-Boot configuration file for the Qseven-i.MX537 is at
 u-boot-2009.08/include/configs/mx53_qseven.h

U-Boot build target:
 mx53_qseven_config

The implementation of module support is at
 u-boot-2009.08/boards/bluetechnix/cmimx53/

= Linux configuration and implementation files =

Linux Kernel configuration option:
 System Type  --->
   Freescale MXC Implementations  --->
     [*] Support Bluetechnix Qseven-i.MX537 module-->

NOTE: By default, the Linux kernel is configured to support all Bluetechnix MX53 modules. The kernel decides at runtime which module it runs on, depending on the machine ID it gets from the U-Boot boot loader.

The platform file for the Qseven-i.MX537 is at:
 linux/arch/arm/mach-mx5/mx53_qseven.c

= NAND flash ECC information=
The i.MX53 uses 16-bit ECC for MT29F16G08ABACA (4KiB page, 224 spare, of which 218 are used); Minimum ECC according to NAND's datasheet is 8 bit.

[[Category:i.MX53]]