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When using a tpm breakout board with rpi3, we elected to bit-bang gpio pins to emulate a spi interface, this implementation required a driver to interface with the platform specific pins and emulate spi functionality. The generic driver provides the ability to pass in a gpio_spi_data structure that contains the necessary gpio pins in order to simulate spi operations (get_access, start, stop, xfer). Change-Id: I88919e8a294c05e0cabb8224e35ae5c1ba5f2413 Signed-off-by: Tushar Khandelwal <tushar.khandelwal@arm.com> Signed-off-by: Abhi Singh <abhi.singh@arm.com> |
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| .. | ||
| gpio.c | ||
| gpio_spi.c | ||