Exemplo n.º 1
0
void __init of_at91rm9200_clk_main_osc_setup(struct device_node *np,
					     struct at91_pmc *pmc)
{
	struct clk *clk;
	unsigned int irq;
	const char *name = np->name;
	const char *parent_name;
	bool bypass;

	of_property_read_string(np, "clock-output-names", &name);
	bypass = of_property_read_bool(np, "atmel,osc-bypass");
	parent_name = of_clk_get_parent_name(np, 0);

	irq = irq_of_parse_and_map(np, 0);
	if (!irq)
		return;

	clk = at91_clk_register_main_osc(pmc, irq, name, parent_name, bypass);
	if (IS_ERR(clk))
		return;

	of_clk_add_provider(np, of_clk_src_simple_get, clk);
}
Exemplo n.º 2
0
static void __init sama5d4_pmc_setup(struct device_node *np)
{
	struct clk_range range = CLK_RANGE(0, 0);
	const char *slck_name, *mainxtal_name;
	struct pmc_data *sama5d4_pmc;
	const char *parent_names[5];
	struct regmap *regmap;
	struct clk *hw;
	int i;
	bool bypass;

	i = of_property_match_string(np, "clock-names", "slow_clk");
	if (i < 0)
		return;

	slck_name = of_clk_get_parent_name(np, i);

	i = of_property_match_string(np, "clock-names", "main_xtal");
	if (i < 0)
		return;
	mainxtal_name = of_clk_get_parent_name(np, i);

	regmap = syscon_node_to_regmap(np);
	if (IS_ERR(regmap))
		return;

	sama5d4_pmc = pmc_data_allocate(PMC_MCK2 + 1,
					nck(sama5d4_systemck),
					nck(sama5d4_periph32ck), 0);
	if (!sama5d4_pmc)
		return;

	hw = at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 12000000,
					   100000000);
	if (IS_ERR(hw))
		goto err_free;

	bypass = of_property_read_bool(np, "atmel,osc-bypass");

	hw = at91_clk_register_main_osc(regmap, "main_osc", mainxtal_name,
					bypass);
	if (IS_ERR(hw))
		goto err_free;

	parent_names[0] = "main_rc_osc";
	parent_names[1] = "main_osc";
	hw = at91_clk_register_sam9x5_main(regmap, "mainck", parent_names, 2);
	if (IS_ERR(hw))
		goto err_free;

	hw = at91_clk_register_pll(regmap, "pllack", "mainck", 0,
				   &sama5d3_pll_layout, &plla_characteristics);
	if (IS_ERR(hw))
		goto err_free;

	hw = at91_clk_register_plldiv(regmap, "plladivck", "pllack");
	if (IS_ERR(hw))
		goto err_free;

	hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
	if (IS_ERR(hw))
		goto err_free;

	sama5d4_pmc->chws[PMC_UTMI] = hw;

	parent_names[0] = slck_name;
	parent_names[1] = "mainck";
	parent_names[2] = "plladivck";
	parent_names[3] = "utmick";
	hw = at91_clk_register_master(regmap, "masterck", 4, parent_names,
				      &at91sam9x5_master_layout,
				      &mck_characteristics);
	if (IS_ERR(hw))
		goto err_free;

	sama5d4_pmc->chws[PMC_MCK] = hw;

	hw = at91_clk_register_h32mx(regmap, "h32mxck", "masterck");
	if (IS_ERR(hw))
		goto err_free;

	sama5d4_pmc->chws[PMC_MCK2] = hw;

	parent_names[0] = "plladivck";
	parent_names[1] = "utmick";
	hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, 2);
	if (IS_ERR(hw))
		goto err_free;

	parent_names[0] = "plladivck";
	parent_names[1] = "utmick";
	hw = at91sam9x5_clk_register_smd(regmap, "smdclk", parent_names, 2);
	if (IS_ERR(hw))
		goto err_free;

	parent_names[0] = slck_name;
	parent_names[1] = "mainck";
	parent_names[2] = "plladivck";
	parent_names[3] = "utmick";
	parent_names[4] = "mck";
	for (i = 0; i < 3; i++) {
		char *name;

		name = xasprintf("prog%d", i);

		hw = at91_clk_register_programmable(regmap, name,
						    parent_names, 5, i,
						    &at91sam9x5_programmable_layout);
		if (IS_ERR(hw))
			goto err_free;
	}

	for (i = 0; i < ARRAY_SIZE(sama5d4_systemck); i++) {
		hw = at91_clk_register_system(regmap, sama5d4_systemck[i].n,
					      sama5d4_systemck[i].p,
					      sama5d4_systemck[i].id);
		if (IS_ERR(hw))
			goto err_free;

		sama5d4_pmc->shws[sama5d4_systemck[i].id] = hw;
	}

	for (i = 0; i < ARRAY_SIZE(sama5d4_periphck); i++) {
		hw = at91_clk_register_sam9x5_peripheral(regmap,
							 sama5d4_periphck[i].n,
							 "masterck",
							 sama5d4_periphck[i].id,
							 &range);
		if (IS_ERR(hw))
			goto err_free;

		sama5d4_pmc->phws[sama5d4_periphck[i].id] = hw;
	}

	for (i = 0; i < ARRAY_SIZE(sama5d4_periph32ck); i++) {
		hw = at91_clk_register_sam9x5_peripheral(regmap,
							 sama5d4_periph32ck[i].n,
							 "h32mxck",
							 sama5d4_periph32ck[i].id,
							 &range);
		if (IS_ERR(hw))
			goto err_free;

		sama5d4_pmc->phws[sama5d4_periph32ck[i].id] = hw;
	}

	of_clk_add_provider(np, of_clk_hw_pmc_get, sama5d4_pmc);

	return;

err_free:
	pmc_data_free(sama5d4_pmc);
}