From a63e54ab5fea8aa15c561dd29bd10edfccc1609c Mon Sep 17 00:00:00 2001 From: Mario Six Date: Thu, 9 Aug 2018 14:51:16 +0200 Subject: drivers: Add AXI uclass Add a uclass for AXI (Advanced eXtensible Interface) busses, and a driver for the gdsys IHS AXI bus on IHS FPGAs. Signed-off-by: Mario Six Reviewed-by: Simon Glass --- drivers/axi/axi-uclass.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 drivers/axi/axi-uclass.c (limited to 'drivers/axi/axi-uclass.c') diff --git a/drivers/axi/axi-uclass.c b/drivers/axi/axi-uclass.c new file mode 100644 index 0000000000..af8acd9f88 --- /dev/null +++ b/drivers/axi/axi-uclass.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2017 + * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc + */ + +#include +#include +#include + +int axi_read(struct udevice *dev, ulong address, void *data, + enum axi_size_t size) +{ + struct axi_ops *ops = axi_get_ops(dev); + + if (!ops->read) + return -ENOSYS; + + return ops->read(dev, address, data, size); +} + +int axi_write(struct udevice *dev, ulong address, void *data, + enum axi_size_t size) +{ + struct axi_ops *ops = axi_get_ops(dev); + + if (!ops->write) + return -ENOSYS; + + return ops->write(dev, address, data, size); +} + +UCLASS_DRIVER(axi) = { + .id = UCLASS_AXI, + .name = "axi", + .post_bind = dm_scan_fdt_dev, + .flags = DM_UC_FLAG_SEQ_ALIAS, +}; + -- cgit