Ejemplo n.º 1
0
static void do_lpddr2_init(u32 base, u32 cs)
{
	u32 mr_addr;

	/* Wait till device auto initialization is complete */
	while (get_mr(base, cs, LPDDR2_MR0) & LPDDR2_MR0_DAI_MASK)
		;
	set_mr(base, cs, LPDDR2_MR10, MR10_ZQ_ZQINIT);
	/*
	 * tZQINIT = 1 us
	 * Enough loops assuming a maximum of 2GHz
	 */
	sdelay(2000);
	set_mr(base, cs, LPDDR2_MR1, MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3);
	set_mr(base, cs, LPDDR2_MR16, MR16_REF_FULL_ARRAY);
	/*
	 * Enable refresh along with writing MR2
	 * Encoding of RL in MR2 is (RL - 2)
	 */
	mr_addr = LPDDR2_MR2 | OMAP44XX_REG_REFRESH_EN_MASK;
	set_mr(base, cs, mr_addr, RL_FINAL - 2);
}
Ejemplo n.º 2
0
/* Compute the delta between 2 resources snapshots.
 * the ResourceDiff can have dangling pointers in old and nu, so dont clear
 * them before being done with rd in the processing loop
 */
static struct ResourceDiff *NewStateDiff(const struct TrackedResources *old,
					  const struct TrackedResources *nu)
{
    /* FIXME */
    struct OpenedResourceNode *orn;
    struct ResourceDiff *rd;

    rd = get_rd();
    if (!rd)
	return NULL;

    NEWLIST(&rd->modifiedOpened);

    for(orn=(struct OpenedResourceNode *)nu->opened.lh_Head;
        orn->node.ln_Succ!=NULL;
        orn=(struct OpenedResourceNode *)orn->node.ln_Succ)
    {
	struct OpenedResourceNode *other;
	BOOL seen = FALSE;

	for(other=(struct OpenedResourceNode *)old->opened.lh_Head;
	    other->node.ln_Succ!=NULL;
	    other=(struct OpenedResourceNode *)other->node.ln_Succ)
	{
	    if (orn->addr == other->addr)
	    {
		if (!strcmp(orn->name, other->name))
		{
		    seen = TRUE;
		    if (orn->count != other->count)
		    {
			struct ModifiedResource *mr = get_mr();
			if (!mr)
			    return NULL;
			mr->type = other->type;
			mr->name = other->name;
			mr->addr = other->addr;
			mr->before_count = other->count;
			mr->after_count = orn->count;
			Enqueue(&rd->modifiedOpened, (struct Node *)mr);
		    }
		}
	    }
	}
	if (!seen)
	{
	    struct ModifiedResource *mr = get_mr();
	    if (!mr)
		return NULL;
	    
	    mr->type = orn->type;
	    mr->name = orn->name;
	    mr->addr = orn->addr;
	    mr->before_count = 0;
	    mr->after_count = orn->count;

	    Enqueue(&rd->modifiedOpened, (struct Node *)mr);
	}
    }


    rd->memLost = old->freeMem - nu->freeMem;

    return rd;
}