target/msm7627_ffa/atags.c

/* Copyright (c) 2009-2010, Code Aurora Forum. All rights reserved.
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#include <reg.h>
#include <debug.h>
#include <smem.h>

#define SIZE_1M               0x00100000

unsigned* target_atag_mem(unsigned* ptr)
{
	struct smem_ram_ptable ram_ptable;
	unsigned i = 0;

	if (smem_ram_ptable_init(&ram_ptable))
	{
		for (i = 0; i < ram_ptable.len; i++)
		{
			if ((ram_ptable.parts[i].attr == READWRITE)
				&& (ram_ptable.parts[i].domain == APPS_DOMAIN)
				&& (ram_ptable.parts[i].start != 0x0)
				&& (!(ram_ptable.parts[i].size < SIZE_1M)))
			{
				/* ATAG_MEM */
				*ptr++ = 4;
				*ptr++ = 0x54410002;
				/* FIXME: RAM partition table currently reports 2M extra
				  Fix this by subracting 2M, until modem ram partition table
				  starts reporting the right values */
				*ptr++ = ram_ptable.parts[i].size - (2*SIZE_1M);
				*ptr++ = ram_ptable.parts[i].start;
			}
		}
	}
	else
	{
		dprintf(CRITICAL, "ERROR: Unable to read RAM partition\n");
		ASSERT(0);
	}
	return ptr;
}