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3 nand flash, 6 serdes block, Table 4-2 – Artesyn COMX-P40x0 ENP2 Installation and Use (August 2014) User Manual

Page 62: Nand flash map, Functional description

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Functional Description

COMX-P40x0 ENP2 Installation and Use (6806800R95B)

62

4.5.3

NAND FLASH

The NAND FLASH is a Micron MT29F8G08ADADAH4 with a size of 8Gb/1GB. Each page
contains 2112 bytes including 2048 bytes of data and 64 bytes of spare. Each block contains
64 pages including 128KB of data and 4KB of spare. There are a total of 8192 blocks.

As shipped, the NAND FLASH is only used as NAND FLASH JFFS2 rootfs. The map is described as
below table:

4.6

SERDES Block

The P4040/P4080 CPU provides 3 banks of SERDES with a total of 18 lanes. Bank 1 routes 8
lanes to the COM Express connector as SERDES[0:7]. Bank 2 routes 4 lanes to the COM Express
connector as SERDES[16:19]. Bank 3 also routes 4 lanes to the COM Express connector but is
unused for this module. Bank 1 provides 2 additional SERDES lanes on-board for CPU
debugging through the Aurora interface. See note in the

Overview

on page 15

.

13

3

001A 0000

0020 0000

384KB

Not Used

16

112

0020 0000

00FF FFFF

14 MB

FMAN ucode Image

128

1792

0100 0000

0EFF FFFF

224 MB

RAMDISK Image

1920

120

0F00 0000

0FEF FFFF

15 MB

Kernel Image

2040

3

0FF0 0000

0FF5 FFFF

384 KB

Device Tree Blob

2043

1

0FF6 0000

0FF7 FFFF

128 KB

U-Boot Env Variable

2044

4

0FF8 0000

0FFF FFFF

512 KB

U-Boot Image

Table 4-1 NOR FLASH Map (continued)

Block#

Blocks

Start End

Size

Description

Table 4-2 NAND FLASH Map

Start Address

End Address

Size

Description

0000 0000

00FF FFFF

16 MB

Not Used

0100 0000

3FFF FFFF

1GB - 16MB

NAND FLASH JFFS2 rootfs