[people/ms/u-boot.git] / board / raspberrypi / rpi_b / rpi_b.c

/*
 * (C) Copyright 2012 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 <asm/arch/mbox.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;
};

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;
}

int board_init(void)
{
	gd->bd->bi_boot_params = 0x100;

	return 0;
}
Commit	Line	Data
0d04f34a SW	1	/*
	2	* (C) Copyright 2012 Stephen Warren
	3	*
	4	* See file CREDITS for list of people who contributed to this
	5	* project.
	6	*
	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.
	10	*
	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.
	15	*/
	16
	17	#include <common.h>
3f397782	18	#include <asm/arch/mbox.h>
0d04f34a SW	19	#include <asm/global_data.h>
	20
	21	DECLARE_GLOBAL_DATA_PTR;
	22
3f397782 SW	23	struct msg_get_arm_mem {
	24	struct bcm2835_mbox_hdr hdr;
	25	struct bcm2835_mbox_tag_get_arm_mem get_arm_mem;
	26	u32 end_tag;
	27	};
	28
0d04f34a SW	29	int dram_init(void)
0d04f34a SW	30	{
3f397782 SW	31	ALLOC_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1, 16);
	32	int ret;
	33
	34	BCM2835_MBOX_INIT_HDR(msg);
	35	BCM2835_MBOX_INIT_TAG(&msg->get_arm_mem, GET_ARM_MEMORY);
	36
	37	ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
	38	if (ret) {
	39	printf("bcm2835: Could not query ARM memory size\n");
	40	return -1;
	41	}
	42
	43	gd->ram_size = msg->get_arm_mem.body.resp.mem_size;
0d04f34a SW	44
	45	return 0;
	46	}
	47
	48	int board_init(void)
	49	{
	50	gd->bd->bi_boot_params = 0x100;
	51
	52	return 0;
	53	}