1 // SPDX-License-Identifier: GPL-2.0+
9  * SPDX-License-Identifier:	GPL-2.0+
13 #include <axi.h>
18 /* Currently selected AXI bus device */
28  * show_bus() - Show devices on a single AXI bus
29  * @bus: The AXI bus device to printt information for
31 static void show_bus(struct udevice *bus)  in show_bus()  argument
35 	printf("Bus %d:\t%s", bus->req_seq, bus->name);  in show_bus()
36 	if (device_active(bus))  in show_bus()
37 		printf("  (active %d)", bus->seq);  in show_bus()
39 	for (device_find_first_child(bus, &dev);  in show_bus()
42 		printf("  %s\n", dev->name);  in show_bus()
46  * axi_set_cur_bus() - Set the currently active AXI bus
47  * @busnum: The number of the bus (i.e. its sequence number) that should be
51  * bus.
53  * Return: 0 if OK, -ve on error
57 	struct udevice *bus;  in axi_set_cur_bus()  local
67 	ret = uclass_get_device_by_seq(UCLASS_AXI, busnum, &bus);  in axi_set_cur_bus()
69 		debug("%s: No bus %d\n", __func__, busnum);  in axi_set_cur_bus()
72 	axi_cur_bus = bus;  in axi_set_cur_bus()
78  * axi_get_cur_bus() - Retrieve the currently active AXI bus device
79  * @busp: Pointer to a struct udevice that receives the currently active bus
82  * Return: 0 if OK, -ve on error
87 		puts("No AXI bus selected\n");  in axi_get_cur_bus()
88 		return -ENODEV;  in axi_get_cur_bus()
112 		struct udevice *bus;  in do_axi_show_bus()  local
114 		for (uclass_first_device(UCLASS_AXI, &bus);  in do_axi_show_bus()
115 		     bus;  in do_axi_show_bus()
116 		     uclass_next_device(&bus))  in do_axi_show_bus()
117 			show_bus(bus);  in do_axi_show_bus()
121 		/* show specific bus */  in do_axi_show_bus()
124 		struct udevice *bus;  in do_axi_show_bus()  local
127 		ret = uclass_get_device_by_seq(UCLASS_AXI, i, &bus);  in do_axi_show_bus()
129 			printf("Invalid bus %d: err=%d\n", i, ret);  in do_axi_show_bus()
132 		show_bus(bus);  in do_axi_show_bus()
146 		struct udevice *bus;  in do_axi_bus_num()  local
148 		if (!axi_get_cur_bus(&bus))  in do_axi_bus_num()
149 			bus_no = bus->seq;  in do_axi_bus_num()
151 			bus_no = -1;  in do_axi_bus_num()
153 		printf("Current bus is %d\n", bus_no);  in do_axi_bus_num()
156 		printf("Setting bus to %d\n", bus_no);  in do_axi_bus_num()
160 			printf("Failure changing bus number (%d)\n", ret);  in do_axi_bus_num()
189 		puts("No AXI bus selected\n");  in do_axi_md()
239 			if (ret == -ENOSYS)  in do_axi_md()
250 		nbytes -= max(linebytes, 1UL);  in do_axi_md()
302 	while (count-- > 0) {  in do_axi_mw()
316 	U_BOOT_CMD_MKENT(bus, 1, 1, do_axi_show_bus, "", ""),
330 	/* Strip off leading 'axi' command argument */  in do_ihs_axi()
331 	argc--;  in do_ihs_axi()
334 	/* Hand off rest of command line to sub-commands */  in do_ihs_axi()
338 		return c->cmd(cmdtp, flag, argc, argv);  in do_ihs_axi()
344 	"bus  - show AXI bus info\n"
345 	"axi dev [bus] - show or set current AXI bus to bus number [bus]\n"
346 …"axi md size addr [# of objects] - read from AXI device at address [addr] and data width [size] (o…
347 …"axi mw size addr value [count] - write data [value] to AXI device at address [addr] and data widt…
349 U_BOOT_CMD(axi, 7, 1, do_ihs_axi,
350 	   "AXI sub-system",