Failed to open the flash device

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originally posted by rugbybloke@Dec 8 2004, 05:10 AM

kwokwong,

i'm afraid your diagnosis is incorrect,

the system.h snippet shows that you have a cfi flash in your system, not an epcs. that would require a snippet like

# define epcs_controller_name "/dev/epcs_controller"# define epcs_controller_type "altera_avalon_epcs_flash_controller"# define epcs_controller_base 0x02100000# define epcs_controller_irq 5# define epcs_controller_databits 8# define epcs_controller_targetclock 20# define epcs_controller_clockunits "mhz"

do you have one of these in your system?

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Thanks rugbybloke. I did confuse the external flash with the flash connected to the EPCS controller.

I can now 'open' the /dev/epcs_controller device to read the flash!

Regards,

Kwok Wong