Marvell ARMADA 16x Applications Processor Family

Marvell ® ARMADA 16x Applications Processor Family
Version 3.2.x Boot ROM Reference Manual
6.2.4.1 SPI Command Sets
Table 18:
SPI Command Sets
6.2.4.2 SPI Device Detection
The Boot ROM first issues a Release from Power Down command (ABh) to the device, followed by
a Read JEDEC ID command (9Fh). The ID returned is compared to those in Table 17, to determine
which device is connected and which command set to use.
If an unknown device is detected, the Boot ROM assumes a 256-byte page size, and uses the
command (03h) to read from the device.
6.3 Preprogrammed Flash Requirements
Preprogramming of Flash memory is supported for large-volume manufacturing and requires the
following when using an image module (NTIM):
• Program the NTIM to the correct offset; contact your local Marvell field engineering
representative for more information.
• Program the OEM Boot Module and any other image described in the image module to the
address indicated by FlashEntryAddr of the image module.
The Boot ROM examines Flash memory and searches for the NTIM. After it is found, the image is
loaded to the address specified in the NTIM.
6.4 Download Capability
6.4.1 USB Port
Device Read Read
Status
The Boot ROM enables the USB 2.0 OTG port in device mode shortly after a power-on reset. An
image can be downloaded over one of these ports by using the Communication protocol as described
in Chapter 9, “Communication Protocol”.
The default USB configuration is the USB 2.0 OTG port. This port is configured after a power-on
reset and is run in Interrupt mode. Contact your local Marvell field engineering representative for
more information about the communication protocol used by the target and host.
6.4.2 Error Reporting Capability
Write
Enable
Page
Program
Program
(stage 2)
Sector
Erase
Numonyx M25P40 03h 05h 06h 02h N/A D8h
ST Micro M25P32 03h 05h 06h 02h N/A D8h
Spansion S25FL016A 03h 05h 06h 02h N/A D8h
Atmel AT25FS040 03h 05h 06h 02h N/A D8h
Atmel AT40DB642D 03h D7h N/A 84h 88h 50h
The V3.2.XX Boot ROM can tabulate in real-time a collection of information called the “Boot ROM
Status Structure” (BRSS). The BRSS serves the following purposes:
1. Place holder for collecting information during run-time for error codes, traversed states and
pointers to other relevant structures that are used during the boot process. This information
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Doc. No. MV-S301208-00 Rev. - Copyright © 11/15/10 Marvell
Page 44
November 2010 PUBLIC RELEASE