Function ti_pruss_attach

freebsd/arm/ti/ti_pruss.c:518–703

}

static int
ti_pruss_attach(device_t dev)
{
	struct ti_pruss_softc *sc;
	int rid, i, err, ncells;
	uint32_t reg;
	phandle_t node;
	clk_t l3_gclk, pruss_ocp_gclk;
	phandle_t ti_prm_ref, *cells;
        device_t ti_prm_dev;

	rid = 0;
	sc = device_get_softc(dev);
	node = ofw_bus_get_node(device_get_parent(dev));
	if (node <= 0) {
		device_printf(dev, "Cant get ofw node\n");
		return (ENXIO);
	}

	/*
	 * Follow activate pattern from sys/arm/ti/am335x/am335x_prcm.c
	 * by Damjan Marion
	 */

	/* Set MODULEMODE to ENABLE(2) */
	/* Wait for MODULEMODE to become ENABLE(2) */
	if (ti_sysc_clock_enable(device_get_parent(dev)) != 0) {
		device_printf(dev, "Could not enable PRUSS clock\n");
		return (ENXIO);
	}

	/* Set CLKTRCTRL to SW_WKUP(2) */
	/* Wait for the 200 MHz OCP clock to become active */
	/* Wait for the 200 MHz IEP clock to become active */
	/* Wait for the 192 MHz UART clock to become active */
	/*
	 * At the moment there is no reference to CM_PER_PRU_ICSS_CLKSTCTRL@140
	 * in the devicetree. The register reset state are SW_WKUP(2) as default
	 * so at the moment ignore setting this register.
	 */

	/* Select L3F as OCP clock */
	/* Get the clock and set the parent */
	err = clk_get_by_name(dev, "l3_gclk", &l3_gclk);
	if (err) {
		device_printf(dev, "Cant get l3_gclk err %d\n", err);
		return (ENXIO);
	}

	err = clk_get_by_name(dev, "pruss_ocp_gclk@530", &pruss_ocp_gclk);
	if (err) {
		device_printf(dev, "Cant get pruss_ocp_gclk@530 err %d\n", err);
		return (ENXIO);
	}

	err = clk_set_parent_by_clk(pruss_ocp_gclk, l3_gclk);
	if (err) {
		device_printf(dev,