1 // SPDX-License-Identifier: GPL-2.0+
8 #include <axi.h>
10 #include <asm/axi.h>
13  * This driver implements a AXI bus for the sandbox architecture for testing
16  * The bus forwards every access to it to a special AXI emulation device (which
24 static int axi_sandbox_read(struct udevice *bus, ulong address, void *data,  in axi_sandbox_read()  argument
32 	ret = axi_sandbox_get_emul(bus, address, size, &emul);  in axi_sandbox_read()
34 		return ret == -ENODEV ? 0 : ret;  in axi_sandbox_read()
35 	/* Forward all reads to the AXI emulator */  in axi_sandbox_read()
37 	if (!ops || !ops->read)  in axi_sandbox_read()
38 		return -ENOSYS;  in axi_sandbox_read()
40 	return ops->read(emul, address, data, size);  in axi_sandbox_read()
43 static int axi_sandbox_write(struct udevice *bus, ulong address, void *data,  in axi_sandbox_write()  argument
51 	ret = axi_sandbox_get_emul(bus, address, size, &emul);  in axi_sandbox_write()
53 		return ret == -ENODEV ? 0 : ret;  in axi_sandbox_write()
54 	/* Forward all writes to the AXI emulator */  in axi_sandbox_write()
56 	if (!ops || !ops->write)  in axi_sandbox_write()
57 		return -ENOSYS;  in axi_sandbox_write()
59 	return ops->write(emul, address, data, size);  in axi_sandbox_write()
63 	{ .compatible = "sandbox,axi" },