2 * (C) Copyright 2012-2013 Stephen Warren
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * version 2 as published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
20 #include <fdt_support.h>
24 #include <asm/arch/mbox.h>
25 #include <asm/arch/sdhci.h>
26 #include <asm/global_data.h>
27 #include <dm/platform_data/serial_pl01x.h>
29 DECLARE_GLOBAL_DATA_PTR;
31 static const struct bcm2835_gpio_platdata gpio_platdata = {
32 .base = BCM2835_GPIO_BASE,
35 U_BOOT_DEVICE(bcm2835_gpios) = {
36 .name = "gpio_bcm2835",
37 .platdata = &gpio_platdata,
40 static const struct pl01x_serial_platdata serial_platdata = {
46 U_BOOT_DEVICE(bcm2835_serials) = {
47 .name = "serial_pl01x",
48 .platdata = &serial_platdata,
51 struct msg_get_arm_mem {
52 struct bcm2835_mbox_hdr hdr;
53 struct bcm2835_mbox_tag_get_arm_mem get_arm_mem;
57 struct msg_get_board_rev {
58 struct bcm2835_mbox_hdr hdr;
59 struct bcm2835_mbox_tag_get_board_rev get_board_rev;
63 struct msg_get_mac_address {
64 struct bcm2835_mbox_hdr hdr;
65 struct bcm2835_mbox_tag_get_mac_address get_mac_address;
69 struct msg_set_power_state {
70 struct bcm2835_mbox_hdr hdr;
71 struct bcm2835_mbox_tag_set_power_state set_power_state;
75 struct msg_get_clock_rate {
76 struct bcm2835_mbox_hdr hdr;
77 struct bcm2835_mbox_tag_get_clock_rate get_clock_rate;
81 /* See comments in mbox.h for data source */
87 [BCM2835_BOARD_REV_B_I2C0_2] = {
89 "bcm2835-rpi-b-i2c0.dtb",
92 [BCM2835_BOARD_REV_B_I2C0_3] = {
94 "bcm2835-rpi-b-i2c0.dtb",
97 [BCM2835_BOARD_REV_B_I2C1_4] = {
102 [BCM2835_BOARD_REV_B_I2C1_5] = {
107 [BCM2835_BOARD_REV_B_I2C1_6] = {
112 [BCM2835_BOARD_REV_A_7] = {
117 [BCM2835_BOARD_REV_A_8] = {
122 [BCM2835_BOARD_REV_A_9] = {
127 [BCM2835_BOARD_REV_B_REV2_d] = {
129 "bcm2835-rpi-b-rev2.dtb",
132 [BCM2835_BOARD_REV_B_REV2_e] = {
134 "bcm2835-rpi-b-rev2.dtb",
137 [BCM2835_BOARD_REV_B_REV2_f] = {
139 "bcm2835-rpi-b-rev2.dtb",
142 [BCM2835_BOARD_REV_B_PLUS] = {
144 "bcm2835-rpi-b-plus.dtb",
147 [BCM2835_BOARD_REV_CM] = {
149 "bcm2835-rpi-cm.dtb",
152 [BCM2835_BOARD_REV_A_PLUS] = {
154 "bcm2835-rpi-a-plus.dtb",
159 u32 rpi_board_rev = 0;
163 ALLOC_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1, 16);
166 BCM2835_MBOX_INIT_HDR(msg);
167 BCM2835_MBOX_INIT_TAG(&msg->get_arm_mem, GET_ARM_MEMORY);
169 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
171 printf("bcm2835: Could not query ARM memory size\n");
175 gd->ram_size = msg->get_arm_mem.body.resp.mem_size;
180 static void set_fdtfile(void)
184 if (getenv("fdtfile"))
187 fdtfile = models[rpi_board_rev].fdtfile;
189 fdtfile = "bcm2835-rpi-other.dtb";
191 setenv("fdtfile", fdtfile);
194 static void set_usbethaddr(void)
196 ALLOC_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1, 16);
199 if (!models[rpi_board_rev].has_onboard_eth)
202 if (getenv("usbethaddr"))
205 BCM2835_MBOX_INIT_HDR(msg);
206 BCM2835_MBOX_INIT_TAG(&msg->get_mac_address, GET_MAC_ADDRESS);
208 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
210 printf("bcm2835: Could not query MAC address\n");
211 /* Ignore error; not critical */
215 eth_setenv_enetaddr("usbethaddr", msg->get_mac_address.body.resp.mac);
220 int misc_init_r(void)
227 static int power_on_module(u32 module)
229 ALLOC_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1, 16);
232 BCM2835_MBOX_INIT_HDR(msg_pwr);
233 BCM2835_MBOX_INIT_TAG(&msg_pwr->set_power_state,
235 msg_pwr->set_power_state.body.req.device_id = module;
236 msg_pwr->set_power_state.body.req.state =
237 BCM2835_MBOX_SET_POWER_STATE_REQ_ON |
238 BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT;
240 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN,
243 printf("bcm2835: Could not set module %u power state\n",
251 static void get_board_rev(void)
253 ALLOC_ALIGN_BUFFER(struct msg_get_board_rev, msg, 1, 16);
257 BCM2835_MBOX_INIT_HDR(msg);
258 BCM2835_MBOX_INIT_TAG(&msg->get_board_rev, GET_BOARD_REV);
260 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
262 printf("bcm2835: Could not query board revision\n");
263 /* Ignore error; not critical */
267 rpi_board_rev = msg->get_board_rev.body.resp.rev;
268 if (rpi_board_rev >= ARRAY_SIZE(models)) {
269 printf("RPI: Board rev %u outside known range\n",
274 name = models[rpi_board_rev].name;
276 printf("RPI: Board rev %u unknown\n", rpi_board_rev);
277 name = "Unknown model";
279 printf("RPI model: %s\n", name);
286 gd->bd->bi_boot_params = 0x100;
288 return power_on_module(BCM2835_MBOX_POWER_DEVID_USB_HCD);
291 int board_mmc_init(bd_t *bis)
293 ALLOC_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1, 16);
296 power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
298 BCM2835_MBOX_INIT_HDR(msg_clk);
299 BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE);
300 msg_clk->get_clock_rate.body.req.clock_id = BCM2835_MBOX_CLOCK_ID_EMMC;
302 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
304 printf("bcm2835: Could not query eMMC clock rate\n");
308 return bcm2835_sdhci_init(BCM2835_SDHCI_BASE,
309 msg_clk->get_clock_rate.body.resp.rate_hz);
312 int ft_board_setup(void *blob, bd_t *bd)
315 * For now, we simply always add the simplefb DT node. Later, we
316 * should be more intelligent, and e.g. only do this if no enabled DT
317 * node exists for the "real" graphics driver.
319 lcd_dt_simplefb_add_node(blob);