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Running Linux on 8GB P5020

Question asked by Adrian Cox on Mar 26, 2014
Latest reply on Mar 26, 2014 by Adrian Cox

I'm running our P5020 board with 8GB of memory, and having a number of problems with Linux. Our kernel is based off the sdk-v1.5 tag in the Freescale GIT tree. With 4GB of memory every driver worked, but with 8GB the following drivers have failed: MMC, USB, and SATA. In each case the on-chip device only supports 32-bit addressing.

 

I've fixed MMC by disabling DMA when the board has more than 4GB. Has anybody got USB and SATA working in large memory scenarios?

 

usb 1-1: device descriptor read/64, error -32

usb 1-1: device descriptor read/64, error -32

usb 1-1: new high-speed USB device number 3 using fsl-ehci

usb 1-1: device descriptor read/64, error -32

usb 1-1: device descriptor read/64, error -32

usb 1-1: new high-speed USB device number 4 using fsl-ehci

usb 1-1: device not accepting address 4, error -32

usb 1-1: new high-speed USB device number 5 using fsl-ehci

usb 1-1: device not accepting address 5, error -32

hub 1-0:1.0: unable to enumerate USB device on port 1

 

 

 

ata2: Signature Update detected @ 504 msecs

ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)

ata2.00: failed to IDENTIFY (INIT_DEV_PARAMS failed, err_mask=0x80)

ata2: limiting SATA link speed to 1.5 Gbps

ata2: Signature Update detected @ 504 msecs

ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)

ata2.00: failed to IDENTIFY (INIT_DEV_PARAMS failed, err_mask=0x80)

ata2: Signature Update detected @ 504 msecs

ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)

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