Memory map for GPMC connected peripherals

vadivel murugan

Prodigy 80 points

Hi ,

I am using u-boot and linux for am335x evm.

On my custom board , we are using GPMC connect to 4 peripheral devices with the cs0,1,2,3 chip selects.

how to map the physical to address to linux resource structure.

Thanks

Murugan

over 11 years ago

0 Cvetolin Shulev-XID over 11 years ago

TI__Guru 65405 points

Moving this post to the proper E2E section - Sitara processors forum.

Tsvetolin Shulev

0 Biser Gatchev-XID over 11 years ago in reply to Cvetolin Shulev-XID

TI__Guru**** 393215 points

GPMC is a part of the AM335X memory space, at addresses 0x00000000 to 0x1FFFFFFF, 512MB. This space is divided between the chip-selects in use by programming register GPMC_CONFIG7_x with the base address and chip-select size. For details see the AM335X TRM Rev. J section 7.1.3.3.8.1

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Memory map for GPMC connected peripherals