134 lines
4.6 KiB
C
134 lines
4.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2021 Semihalf.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/rman.h>
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#include <machine/bus.h>
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#include <dev/fdt/simplebus.h>
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#include <dev/extres/clk/clk.h>
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#include <dev/extres/clk/clk_fixed.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include "clkdev_if.h"
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#include "periph.h"
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#define SB_DEV_COUNT 14
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static struct a37x0_periph_clknode_def a37x0_sb_devices [] = {
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CLK_MDD("gbe_50", 0, 6, 1, DIV_SEL2, DIV_SEL2, 6, 9,
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"tbg_mux_gbe_50_120", "div1_gbe_50_121", "div2_gbe_50_122"),
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CLK_MDD("gbe_core", 1, 8, 5, DIV_SEL1, DIV_SEL1, 18, 21,
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"tbg_mux_gbe_core_124", "div1_gbe_core_125", "div2_gbe_core_126"),
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CLK_MDD("gbe_125", 2, 10, 3, DIV_SEL1, DIV_SEL1, 6, 9,
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"tbg_mux_gbe_125_128", "div1_gbe_50_129", "div2_gbe_50_130"),
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CLK_GATE("gbe1_50", 3, 0, "gbe_50"),
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CLK_GATE("gbe0_50", 4, 1, "gbe_50"),
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CLK_GATE("gbe1_125", 5, 2, "gbe_125"),
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CLK_GATE("gbe0_125", 6, 3, "gbe_125"),
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CLK_MUX_GATE("gbe1_core", 7, 4, 13, "gbe_core",
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"mux_gbe1_core_136", "fixed_gbe1_core_138"),
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CLK_MUX_GATE("gbe0_core", 8, 5, 14, "gbe_core",
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"mux_gbe0_core_139", "fixed_gbe0_core_141"),
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CLK_MUX_GATE("gbe_bm", 9, 12, 12, "gbe_core",
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"mux_gbe_bm_136", "fixed_gbe_bm_138"),
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CLK_FULL_DD("sdio", 10, 11, 14, 7, DIV_SEL0, DIV_SEL0, 3, 6,
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"tbg_mux_sdio_139", "div1_sdio_140", "div2_sdio_141",
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"clk_mux_sdio_142"),
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CLK_FULL_DD("usb32_usb2_sys", 11, 16, 16, 8, DIV_SEL0, DIV_SEL0, 9, 12,
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"tbg_mux_usb32_usb2_sys_144", "div1_usb32_usb2_sys_145",
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"div2_usb32_usb2_sys_146", "clk_mux_usb32_usb2_sys_147"),
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CLK_FULL_DD("usb32_ss_sys", 12, 17, 18, 9, DIV_SEL0, DIV_SEL0, 15, 18,
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"tbg_mux_usb32_ss_sys_149", "div1_usb32_ss_sys_150",
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"div2_usb32_ss_sys_151", "clk_mux_usb32_ss_sys_152"),
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CLK_GATE("pcie", 13, 14, "gbe_core")
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};
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static struct ofw_compat_data a37x0_sb_periph_compat_data[] = {
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{ "marvell,armada-3700-periph-clock-sb", 1 },
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{ NULL, 0 }
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};
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static int a37x0_sb_periph_clk_attach(device_t);
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static int a37x0_sb_periph_clk_probe(device_t);
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static device_method_t a37x0_sb_periph_clk_methods[] = {
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DEVMETHOD(clkdev_device_unlock, a37x0_periph_clk_device_unlock),
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DEVMETHOD(clkdev_device_lock, a37x0_periph_clk_device_lock),
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DEVMETHOD(clkdev_read_4, a37x0_periph_clk_read_4),
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DEVMETHOD(device_attach, a37x0_sb_periph_clk_attach),
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DEVMETHOD(device_detach, a37x0_periph_clk_detach),
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DEVMETHOD(device_probe, a37x0_sb_periph_clk_probe),
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DEVMETHOD_END
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};
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static driver_t a37x0_sb_periph_driver = {
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"a37x0_sb_periph_driver",
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a37x0_sb_periph_clk_methods,
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sizeof(struct a37x0_periph_clk_softc)
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};
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EARLY_DRIVER_MODULE(a37x0_sb_periph, simplebus, a37x0_sb_periph_driver, 0, 0,
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BUS_PASS_TIMER + BUS_PASS_ORDER_LATE);
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static int
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a37x0_sb_periph_clk_attach(device_t dev)
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{
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struct a37x0_periph_clk_softc *sc;
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sc = device_get_softc(dev);
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sc->devices = a37x0_sb_devices;
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sc->device_count = SB_DEV_COUNT;
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return (a37x0_periph_clk_attach(dev));
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}
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static int
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a37x0_sb_periph_clk_probe(device_t dev)
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{
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if (!ofw_bus_status_okay(dev))
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return (ENXIO);
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if (!ofw_bus_search_compatible(dev,
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a37x0_sb_periph_compat_data)->ocd_data)
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return (ENXIO);
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device_set_desc(dev, "marvell,armada-3700-sb-periph-clock");
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return (BUS_PROBE_DEFAULT);
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}
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