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u-boot/drivers/misc/gdsys_soc.h
Mario Six c0a2b086b2 misc: Add gdsys_soc driver
This patch adds a driver for the bus associated with a IHS FPGA.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-11-14 09:16:27 -08:00

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777 B
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2017
* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
*/
#ifndef _GDSYS_SOC_H_
#define _GDSYS_SOC_H_
/**
* gdsys_soc_get_fpga() - Retrieve pointer to parent bus' FPGA device
* @child: The child device on the FPGA bus needing access to the FPGA.
* @fpga: Pointer to the retrieved FPGA device.
*
* To access their register maps, devices on gdsys soc buses usually have
* facilitate the accessor function of the IHS FPGA their parent bus is
* attached to. To access the FPGA device from within the bus' children, this
* function returns a pointer to it.
*
* Return: 0 on success, -ve on failure
*/
int gdsys_soc_get_fpga(struct udevice *child, struct udevice **fpga);
#endif /* _GDSYS_SOC_H_ */