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sys/arm/mv/clk/a37x0_sb_periph_clk_driver.c
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/*- | |||||
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
* | |||||
* Copyright (c) 2021 Semihalf. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in the | |||||
* documentation and/or other materials provided with the distribution. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
*/ | |||||
#include <sys/param.h> | |||||
#include <sys/bus.h> | |||||
#include <sys/kernel.h> | |||||
#include <sys/module.h> | |||||
#include <sys/mutex.h> | |||||
#include <sys/rman.h> | |||||
#include <machine/bus.h> | |||||
#include <dev/fdt/simplebus.h> | |||||
#include <dev/extres/clk/clk.h> | |||||
#include <dev/extres/clk/clk_fixed.h> | |||||
#include <dev/ofw/ofw_bus.h> | |||||
#include <dev/ofw/ofw_bus_subr.h> | |||||
#include "clkdev_if.h" | |||||
#include "periph.h" | |||||
#define SB_DEV_COUNT 14 | |||||
static struct a37x0_periph_clknode_def a37x0_sb_devices [] = { | |||||
CLK_MDD("gbe_50", 0, 6, 1, DIV_SEL2, DIV_SEL2, 6, 9, | |||||
"tbg_mux_gbe_50_120", "div1_gbe_50_121", "div2_gbe_50_122"), | |||||
CLK_MDD("gbe_core", 1, 8, 5, DIV_SEL1, DIV_SEL1, 18, 21, | |||||
"tbg_mux_gbe_core_124", "div1_gbe_core_125", "div2_gbe_core_126"), | |||||
CLK_MDD("gbe_125", 2, 10, 3, DIV_SEL1, DIV_SEL1, 6, 9, | |||||
"tbg_mux_gbe_125_128", "div1_gbe_50_129", "div2_gbe_50_130"), | |||||
CLK_GATE("gbe1_50", 3, 0, "gbe_50"), | |||||
CLK_GATE("gbe0_50", 4, 1, "gbe_50"), | |||||
CLK_GATE("gbe1_125", 5, 2, "gbe_125"), | |||||
CLK_GATE("gbe0_125", 6, 3, "gbe_125"), | |||||
CLK_MUX_GATE("gbe1_core", 7, 4, 13, "gbe_core", | |||||
"mux_gbe1_core_136", "fixed_gbe1_core_138"), | |||||
CLK_MUX_GATE("gbe0_core", 8, 5, 14, "gbe_core", | |||||
"mux_gbe0_core_139", "fixed_gbe0_core_141"), | |||||
CLK_MUX_GATE("gbe_bm", 9, 12, 12, "gbe_core", | |||||
"mux_gbe_bm_136", "fixed_gbe_bm_138"), | |||||
CLK_FULL_DD("sdio", 10, 11, 14, 7, DIV_SEL0, DIV_SEL0, 3, 6, | |||||
"tbg_mux_sdio_139", "div1_sdio_140", "div2_sdio_141", | |||||
"clk_mux_sdio_142"), | |||||
CLK_FULL_DD("usb32_usb2_sys", 11, 16, 16, 8, DIV_SEL0, DIV_SEL0, 9, 12, | |||||
"tbg_mux_usb32_usb2_sys_144", "div1_usb32_usb2_sys_145", | |||||
"div2_usb32_usb2_sys_146", "clk_mux_usb32_usb2_sys_147"), | |||||
CLK_FULL_DD("usb32_ss_sys", 12, 17, 18, 9, DIV_SEL0, DIV_SEL0, 15, 18, | |||||
"tbg_mux_usb32_ss_sys_149", "div1_usb32_ss_sys_150", | |||||
"div2_usb32_ss_sys_151", "clk_mux_usb32_ss_sys_152"), | |||||
CLK_GATE("pcie", 13, 14, "gbe_core") | |||||
}; | |||||
static struct ofw_compat_data a37x0_sb_periph_compat_data[] = { | |||||
{ "marvell,armada-3700-periph-clock-sb", 1 }, | |||||
{ NULL, 0 } | |||||
}; | |||||
static int a37x0_sb_periph_clk_attach(device_t); | |||||
static int a37x0_sb_periph_clk_probe(device_t); | |||||
static device_method_t a37x0_sb_periph_clk_methods[] = { | |||||
DEVMETHOD(clkdev_device_unlock, a37x0_periph_clk_device_unlock), | |||||
DEVMETHOD(clkdev_device_lock, a37x0_periph_clk_device_lock), | |||||
DEVMETHOD(clkdev_read_4, a37x0_periph_clk_read_4), | |||||
DEVMETHOD(device_attach, a37x0_sb_periph_clk_attach), | |||||
DEVMETHOD(device_detach, a37x0_periph_clk_detach), | |||||
DEVMETHOD(device_probe, a37x0_sb_periph_clk_probe), | |||||
DEVMETHOD_END | |||||
}; | |||||
static driver_t a37x0_sb_periph_driver = { | |||||
"a37x0_sb_periph_driver", | |||||
a37x0_sb_periph_clk_methods, | |||||
sizeof(struct a37x0_periph_clk_softc) | |||||
}; | |||||
devclass_t a37x0_sb_periph_devclass; | |||||
EARLY_DRIVER_MODULE(a37x0_sb_periph, simplebus, a37x0_sb_periph_driver, | |||||
a37x0_sb_periph_devclass, 0, 0, BUS_PASS_TIMER + BUS_PASS_ORDER_LATE); | |||||
static int | |||||
a37x0_sb_periph_clk_attach(device_t dev) | |||||
{ | |||||
struct a37x0_periph_clk_softc *sc; | |||||
sc = device_get_softc(dev); | |||||
sc->devices = a37x0_sb_devices; | |||||
sc->device_count = SB_DEV_COUNT; | |||||
return (a37x0_periph_clk_attach(dev)); | |||||
} | |||||
static int | |||||
a37x0_sb_periph_clk_probe(device_t dev) | |||||
{ | |||||
if (!ofw_bus_status_okay(dev)) | |||||
return (ENXIO); | |||||
if (!ofw_bus_search_compatible(dev, | |||||
a37x0_sb_periph_compat_data)->ocd_data) | |||||
return (ENXIO); | |||||
device_set_desc(dev, "marvell,armada-3700-sb-periph-clock"); | |||||
return (BUS_PROBE_DEFAULT); | |||||
} |