2 * (C) Copyright 2012-2013,2015 Stephen Warren
4 * SPDX-License-Identifier: GPL-2.0
10 #include <fdt_support.h>
11 #include <fdt_simplefb.h>
15 #include <asm/arch/mbox.h>
16 #include <asm/arch/sdhci.h>
17 #include <asm/global_data.h>
18 #include <dm/platform_data/serial_pl01x.h>
20 DECLARE_GLOBAL_DATA_PTR;
22 static const struct bcm2835_gpio_platdata gpio_platdata = {
23 .base = BCM2835_GPIO_BASE,
26 U_BOOT_DEVICE(bcm2835_gpios) = {
27 .name = "gpio_bcm2835",
28 .platdata = &gpio_platdata,
31 static const struct pl01x_serial_platdata serial_platdata = {
41 U_BOOT_DEVICE(bcm2835_serials) = {
42 .name = "serial_pl01x",
43 .platdata = &serial_platdata,
46 struct msg_get_arm_mem {
47 struct bcm2835_mbox_hdr hdr;
48 struct bcm2835_mbox_tag_get_arm_mem get_arm_mem;
52 struct msg_get_board_rev {
53 struct bcm2835_mbox_hdr hdr;
54 struct bcm2835_mbox_tag_get_board_rev get_board_rev;
58 struct msg_get_mac_address {
59 struct bcm2835_mbox_hdr hdr;
60 struct bcm2835_mbox_tag_get_mac_address get_mac_address;
64 struct msg_set_power_state {
65 struct bcm2835_mbox_hdr hdr;
66 struct bcm2835_mbox_tag_set_power_state set_power_state;
70 struct msg_get_clock_rate {
71 struct bcm2835_mbox_hdr hdr;
72 struct bcm2835_mbox_tag_get_clock_rate get_clock_rate;
76 /* See comments in mbox.h for data source */
85 "bcm2836-rpi-other.dtb",
87 "bcm2835-rpi-other.dtb",
92 [BCM2836_BOARD_REV_2_B] = {
94 "bcm2836-rpi-2-b.dtb",
98 [BCM2835_BOARD_REV_B_I2C0_2] = {
100 "bcm2835-rpi-b-i2c0.dtb",
103 [BCM2835_BOARD_REV_B_I2C0_3] = {
105 "bcm2835-rpi-b-i2c0.dtb",
108 [BCM2835_BOARD_REV_B_I2C1_4] = {
113 [BCM2835_BOARD_REV_B_I2C1_5] = {
118 [BCM2835_BOARD_REV_B_I2C1_6] = {
123 [BCM2835_BOARD_REV_A_7] = {
128 [BCM2835_BOARD_REV_A_8] = {
133 [BCM2835_BOARD_REV_A_9] = {
138 [BCM2835_BOARD_REV_B_REV2_d] = {
140 "bcm2835-rpi-b-rev2.dtb",
143 [BCM2835_BOARD_REV_B_REV2_e] = {
145 "bcm2835-rpi-b-rev2.dtb",
148 [BCM2835_BOARD_REV_B_REV2_f] = {
150 "bcm2835-rpi-b-rev2.dtb",
153 [BCM2835_BOARD_REV_B_PLUS] = {
155 "bcm2835-rpi-b-plus.dtb",
158 [BCM2835_BOARD_REV_CM] = {
160 "bcm2835-rpi-cm.dtb",
163 [BCM2835_BOARD_REV_A_PLUS] = {
165 "bcm2835-rpi-a-plus.dtb",
168 [BCM2835_BOARD_REV_B_PLUS_13] = {
170 "bcm2835-rpi-b-plus.dtb",
173 [BCM2835_BOARD_REV_CM_14] = {
175 "bcm2835-rpi-cm.dtb",
181 u32 rpi_board_rev = 0;
185 ALLOC_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1, 16);
188 BCM2835_MBOX_INIT_HDR(msg);
189 BCM2835_MBOX_INIT_TAG(&msg->get_arm_mem, GET_ARM_MEMORY);
191 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
193 printf("bcm2835: Could not query ARM memory size\n");
197 gd->ram_size = msg->get_arm_mem.body.resp.mem_size;
202 static void set_fdtfile(void)
206 if (getenv("fdtfile"))
209 fdtfile = models[rpi_board_rev].fdtfile;
210 setenv("fdtfile", fdtfile);
213 static void set_usbethaddr(void)
215 ALLOC_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1, 16);
218 if (!models[rpi_board_rev].has_onboard_eth)
221 if (getenv("usbethaddr"))
224 BCM2835_MBOX_INIT_HDR(msg);
225 BCM2835_MBOX_INIT_TAG(&msg->get_mac_address, GET_MAC_ADDRESS);
227 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
229 printf("bcm2835: Could not query MAC address\n");
230 /* Ignore error; not critical */
234 eth_setenv_enetaddr("usbethaddr", msg->get_mac_address.body.resp.mac);
239 int misc_init_r(void)
246 static int power_on_module(u32 module)
248 ALLOC_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1, 16);
251 BCM2835_MBOX_INIT_HDR(msg_pwr);
252 BCM2835_MBOX_INIT_TAG(&msg_pwr->set_power_state,
254 msg_pwr->set_power_state.body.req.device_id = module;
255 msg_pwr->set_power_state.body.req.state =
256 BCM2835_MBOX_SET_POWER_STATE_REQ_ON |
257 BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT;
259 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN,
262 printf("bcm2835: Could not set module %u power state\n",
270 static void get_board_rev(void)
272 ALLOC_ALIGN_BUFFER(struct msg_get_board_rev, msg, 1, 16);
276 BCM2835_MBOX_INIT_HDR(msg);
277 BCM2835_MBOX_INIT_TAG(&msg->get_board_rev, GET_BOARD_REV);
279 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
281 printf("bcm2835: Could not query board revision\n");
282 /* Ignore error; not critical */
287 * For details of old-vs-new scheme, see:
288 * https://github.com/pimoroni/RPi.version/blob/master/RPi/version.py
289 * http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=99293&p=690282
292 * For the RPi 1, bit 24 is the "warranty bit", so we mask off just the
293 * lower byte to use as the board rev:
294 * http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=98367&start=250
295 * http://www.raspberrypi.org/forums/viewtopic.php?f=31&t=20594
297 rpi_board_rev = msg->get_board_rev.body.resp.rev;
298 if (rpi_board_rev & 0x800000)
299 rpi_board_rev = (rpi_board_rev >> 4) & 0xff;
301 rpi_board_rev &= 0xff;
302 if (rpi_board_rev >= ARRAY_SIZE(models)) {
303 printf("RPI: Board rev %u outside known range\n",
307 if (!models[rpi_board_rev].name) {
308 printf("RPI: Board rev %u unknown\n", rpi_board_rev);
312 name = models[rpi_board_rev].name;
313 printf("RPI %s\n", name);
320 gd->bd->bi_boot_params = 0x100;
322 return power_on_module(BCM2835_MBOX_POWER_DEVID_USB_HCD);
325 int board_mmc_init(bd_t *bis)
327 ALLOC_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1, 16);
330 power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
332 BCM2835_MBOX_INIT_HDR(msg_clk);
333 BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE);
334 msg_clk->get_clock_rate.body.req.clock_id = BCM2835_MBOX_CLOCK_ID_EMMC;
336 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
338 printf("bcm2835: Could not query eMMC clock rate\n");
342 return bcm2835_sdhci_init(BCM2835_SDHCI_BASE,
343 msg_clk->get_clock_rate.body.resp.rate_hz);
346 int ft_board_setup(void *blob, bd_t *bd)
349 * For now, we simply always add the simplefb DT node. Later, we
350 * should be more intelligent, and e.g. only do this if no enabled DT
351 * node exists for the "real" graphics driver.
353 lcd_dt_simplefb_add_node(blob);