UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 44330

Zynq-7000, Boot - NAND Boot Width is Limited to 8 Bits

Description

The BootROM reads data on the lower 8 data bits of the NAND interface. Systems with a 16-bit NAND device will work as a boot device if the FSBL is delivered on these lower 8 bits. User software can re-program the NAND controller to use all 16 data bits. Systems with 8-bit NAND devices work normally with the BootROM.

Solution

Impact: Minor.
Work-around: Use an 8-bit NAND device.
For a 16-bit boot device, put the boot code in the lower 8 data bits.
Configurations
Affected:
Systems that include a 16-bit NAND device for booting.
Device Revision(s): Refer to (Xilinx Answer 47916) - Design Advisory Master Answer Record for Zynq-7000 Devices.

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
52538 Zynq-7000 AP SoC - Boot and Configuration N/A N/A
AR# 44330
Date Created 05/23/2012
Last Updated 10/22/2012
Status Active
Type Design Advisory
Devices
  • Zynq-7000