mirror of
https://github.com/smaeul/u-boot.git
synced 2025-10-31 03:58:17 +00:00
5dfd162eea
While at it add fdt_support.h as well. cc: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
126 lines
3.1 KiB
C
126 lines
3.1 KiB
C
/*
|
|
* (C) Copyright 2012-2013 Stephen Warren
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <config.h>
|
|
#include <fdt_support.h>
|
|
#include <lcd.h>
|
|
#include <mmc.h>
|
|
#include <asm/arch/mbox.h>
|
|
#include <asm/arch/sdhci.h>
|
|
#include <asm/global_data.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
struct msg_get_arm_mem {
|
|
struct bcm2835_mbox_hdr hdr;
|
|
struct bcm2835_mbox_tag_get_arm_mem get_arm_mem;
|
|
u32 end_tag;
|
|
};
|
|
|
|
struct msg_set_power_state {
|
|
struct bcm2835_mbox_hdr hdr;
|
|
struct bcm2835_mbox_tag_set_power_state set_power_state;
|
|
u32 end_tag;
|
|
};
|
|
|
|
struct msg_get_clock_rate {
|
|
struct bcm2835_mbox_hdr hdr;
|
|
struct bcm2835_mbox_tag_get_clock_rate get_clock_rate;
|
|
u32 end_tag;
|
|
};
|
|
|
|
int dram_init(void)
|
|
{
|
|
ALLOC_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1, 16);
|
|
int ret;
|
|
|
|
BCM2835_MBOX_INIT_HDR(msg);
|
|
BCM2835_MBOX_INIT_TAG(&msg->get_arm_mem, GET_ARM_MEMORY);
|
|
|
|
ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
|
|
if (ret) {
|
|
printf("bcm2835: Could not query ARM memory size\n");
|
|
return -1;
|
|
}
|
|
|
|
gd->ram_size = msg->get_arm_mem.body.resp.mem_size;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int power_on_module(u32 module)
|
|
{
|
|
ALLOC_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1, 16);
|
|
int ret;
|
|
|
|
BCM2835_MBOX_INIT_HDR(msg_pwr);
|
|
BCM2835_MBOX_INIT_TAG(&msg_pwr->set_power_state,
|
|
SET_POWER_STATE);
|
|
msg_pwr->set_power_state.body.req.device_id = module;
|
|
msg_pwr->set_power_state.body.req.state =
|
|
BCM2835_MBOX_SET_POWER_STATE_REQ_ON |
|
|
BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT;
|
|
|
|
ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN,
|
|
&msg_pwr->hdr);
|
|
if (ret) {
|
|
printf("bcm2835: Could not set module %u power state\n",
|
|
module);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
gd->bd->bi_boot_params = 0x100;
|
|
|
|
return power_on_module(BCM2835_MBOX_POWER_DEVID_USB_HCD);
|
|
}
|
|
|
|
int board_mmc_init(bd_t *bis)
|
|
{
|
|
ALLOC_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1, 16);
|
|
int ret;
|
|
|
|
power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
|
|
|
|
BCM2835_MBOX_INIT_HDR(msg_clk);
|
|
BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE);
|
|
msg_clk->get_clock_rate.body.req.clock_id = BCM2835_MBOX_CLOCK_ID_EMMC;
|
|
|
|
ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
|
|
if (ret) {
|
|
printf("bcm2835: Could not query eMMC clock rate\n");
|
|
return -1;
|
|
}
|
|
|
|
return bcm2835_sdhci_init(BCM2835_SDHCI_BASE,
|
|
msg_clk->get_clock_rate.body.resp.rate_hz);
|
|
}
|
|
|
|
void ft_board_setup(void *blob, bd_t *bd)
|
|
{
|
|
/*
|
|
* For now, we simply always add the simplefb DT node. Later, we
|
|
* should be more intelligent, and e.g. only do this if no enabled DT
|
|
* node exists for the "real" graphics driver.
|
|
*/
|
|
lcd_dt_simplefb_add_node(blob);
|
|
}
|