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>
28 DECLARE_GLOBAL_DATA_PTR;
30 static const struct bcm2835_gpio_platdata gpio_platdata = {
31 .base = BCM2835_GPIO_BASE,
34 U_BOOT_DEVICE(bcm2835_gpios) = {
35 .name = "gpio_bcm2835",
36 .platdata = &gpio_platdata,
39 struct msg_get_arm_mem {
40 struct bcm2835_mbox_hdr hdr;
41 struct bcm2835_mbox_tag_get_arm_mem get_arm_mem;
45 struct msg_get_mac_address {
46 struct bcm2835_mbox_hdr hdr;
47 struct bcm2835_mbox_tag_get_mac_address get_mac_address;
51 struct msg_set_power_state {
52 struct bcm2835_mbox_hdr hdr;
53 struct bcm2835_mbox_tag_set_power_state set_power_state;
57 struct msg_get_clock_rate {
58 struct bcm2835_mbox_hdr hdr;
59 struct bcm2835_mbox_tag_get_clock_rate get_clock_rate;
65 ALLOC_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1, 16);
68 BCM2835_MBOX_INIT_HDR(msg);
69 BCM2835_MBOX_INIT_TAG(&msg->get_arm_mem, GET_ARM_MEMORY);
71 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
73 printf("bcm2835: Could not query ARM memory size\n");
77 gd->ram_size = msg->get_arm_mem.body.resp.mem_size;
84 ALLOC_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1, 16);
87 if (getenv("usbethaddr"))
90 BCM2835_MBOX_INIT_HDR(msg);
91 BCM2835_MBOX_INIT_TAG(&msg->get_mac_address, GET_MAC_ADDRESS);
93 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
95 printf("bcm2835: Could not query MAC address\n");
96 /* Ignore error; not critical */
100 eth_setenv_enetaddr("usbethaddr", msg->get_mac_address.body.resp.mac);
105 static int power_on_module(u32 module)
107 ALLOC_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1, 16);
110 BCM2835_MBOX_INIT_HDR(msg_pwr);
111 BCM2835_MBOX_INIT_TAG(&msg_pwr->set_power_state,
113 msg_pwr->set_power_state.body.req.device_id = module;
114 msg_pwr->set_power_state.body.req.state =
115 BCM2835_MBOX_SET_POWER_STATE_REQ_ON |
116 BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT;
118 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN,
121 printf("bcm2835: Could not set module %u power state\n",
131 gd->bd->bi_boot_params = 0x100;
133 return power_on_module(BCM2835_MBOX_POWER_DEVID_USB_HCD);
136 int board_mmc_init(bd_t *bis)
138 ALLOC_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1, 16);
141 power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
143 BCM2835_MBOX_INIT_HDR(msg_clk);
144 BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE);
145 msg_clk->get_clock_rate.body.req.clock_id = BCM2835_MBOX_CLOCK_ID_EMMC;
147 ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
149 printf("bcm2835: Could not query eMMC clock rate\n");
153 return bcm2835_sdhci_init(BCM2835_SDHCI_BASE,
154 msg_clk->get_clock_rate.body.resp.rate_hz);
157 void ft_board_setup(void *blob, bd_t *bd)
160 * For now, we simply always add the simplefb DT node. Later, we
161 * should be more intelligent, and e.g. only do this if no enabled DT
162 * node exists for the "real" graphics driver.
164 lcd_dt_simplefb_add_node(blob);