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Hi,
I own a project and there is a Altera CPLD attached to Skylake CPU via eSPI, Im wondering port a embedded Linux to access CPLD. Im sure there is a master CPLD driver build-in Linux kernel, should I write a customize eSPI slave driver for accessing this specific CPLD? I trace the source code of linux kernel, there is a C file - spi-altera.c, did it support all Altera product and using eSPI interface? Thanks. --DirkLink Copied
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--- Quote Start --- Hi, Im sure there is a master CPLD driver build-in Linux kernel, should I write a customize eSPI slave driver for accessing this specific CPLD? --- Quote End --- Most likely, yes. --- Quote Start --- I trace the source code of linux kernel, there is a C file - spi-altera.c, did it support all Altera product and using eSPI interface? --- Quote End --- That driver is for interfacing to the Altera SPI IP block (e.g. from a NIOS or ARM), which is not what you are doing.
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