1 // SPDX-License-Identifier: GPL-2.0
3  * (C) Copyright 2012-2016 Stephen Warren
17 #include <asm/arch/mbox.h>
71  * https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md
81 	DTB_DIR "bcm283x-rpi-other.dtb",
88 		DTB_DIR "bcm2835-rpi-a.dtb",
93 		DTB_DIR "bcm2835-rpi-b.dtb",
98 		DTB_DIR "bcm2835-rpi-a-plus.dtb",
103 		DTB_DIR "bcm2835-rpi-b-plus.dtb",
108 		DTB_DIR "bcm2836-rpi-2-b.dtb",
113 		DTB_DIR "bcm2835-rpi-cm.dtb",
118 		DTB_DIR "bcm2837-rpi-3-b.dtb",
123 		DTB_DIR "bcm2835-rpi-zero.dtb",
128 		DTB_DIR "bcm2837-rpi-cm3.dtb",
133 		DTB_DIR "bcm2835-rpi-zero-w.dtb",
138 		DTB_DIR "bcm2837-rpi-3-b-plus.dtb",
143 		DTB_DIR "bcm2837-rpi-3-a-plus.dtb",
148 		DTB_DIR "bcm2837-rpi-cm3.dtb",
156 		DTB_DIR "bcm2835-rpi-b.dtb",
161 		DTB_DIR "bcm2835-rpi-b.dtb",
166 		DTB_DIR "bcm2835-rpi-b-rev2.dtb",
171 		DTB_DIR "bcm2835-rpi-b-rev2.dtb",
176 		DTB_DIR "bcm2835-rpi-b-rev2.dtb",
181 		DTB_DIR "bcm2835-rpi-a.dtb",
186 		DTB_DIR "bcm2835-rpi-a.dtb",
191 		DTB_DIR "bcm2835-rpi-a.dtb",
196 		DTB_DIR "bcm2835-rpi-b-rev2.dtb",
201 		DTB_DIR "bcm2835-rpi-b-rev2.dtb",
206 		DTB_DIR "bcm2835-rpi-b-rev2.dtb",
211 		DTB_DIR "bcm2835-rpi-b-plus.dtb",
216 		DTB_DIR "bcm2835-rpi-cm.dtb",
221 		DTB_DIR "bcm2835-rpi-a-plus.dtb",
226 		DTB_DIR "bcm2835-rpi-b-plus.dtb",
231 		DTB_DIR "bcm2835-rpi-cm.dtb",
236 		DTB_DIR "bcm2835-rpi-a-plus.dtb",
276 	BCM2835_MBOX_INIT_TAG(&msg->get_arm_mem, GET_ARM_MEMORY);  in dram_init()
278 	ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);  in dram_init()
280 		printf("bcm2835: Could not query ARM memory size\n");  in dram_init()
281 		return -1;  in dram_init()
284 	gd->ram_size = msg->get_arm_mem.body.resp.mem_size;  in dram_init()
296 	fdtfile = model->fdtfile;  in set_fdtfile()
320 	if ((gd->ram_top - fw_dtb_pointer) > SZ_64M)  in board_get_usable_ram_top()
321 		return gd->ram_top;  in board_get_usable_ram_top()
330 	if (!model->has_onboard_eth)  in set_usbethaddr()
337 	BCM2835_MBOX_INIT_TAG(&msg->get_mac_address, GET_MAC_ADDRESS);  in set_usbethaddr()
339 	ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);  in set_usbethaddr()
341 		printf("bcm2835: Could not query MAC address\n");  in set_usbethaddr()
346 	eth_env_set_enetaddr("usbethaddr", msg->get_mac_address.body.resp.mac);  in set_usbethaddr()
366 	env_set("board_name", model->name);  in set_board_info()
380 	BCM2835_MBOX_INIT_TAG_NO_REQ(&msg->get_board_serial, GET_BOARD_SERIAL);  in set_serial_number()
382 	ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);  in set_serial_number()
384 		printf("bcm2835: Could not query board serial\n");  in set_serial_number()
390 		 msg->get_board_serial.body.resp.serial);  in set_serial_number()
415 	BCM2835_MBOX_INIT_TAG(&msg->get_board_rev, GET_BOARD_REV);  in get_board_rev()
417 	ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);  in get_board_rev()
419 		printf("bcm2835: Could not query board revision\n");  in get_board_rev()
425 	 * For details of old-vs-new scheme, see:  in get_board_rev()
435 	revision = msg->get_board_rev.body.resp.rev;  in get_board_rev()
457 	printf("RPI %s (0x%x)\n", model->name, revision);  in get_board_rev()
468 	gd->bd->bi_boot_params = 0x100;  in board_init()
474  * If the firmware passed a device tree use it for U-Boot.