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sys/arm/mv/clk/a37x0_nb_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 NB_DEV_COUNT 17 | |||||
static struct clk_div_table a37x0_periph_clk_table_6 [] = { | |||||
{ .value = 1, .divider = 1 }, | |||||
{ .value = 2, .divider = 2 }, | |||||
{ .value = 3, .divider = 3 }, | |||||
{ .value = 4, .divider = 4 }, | |||||
{ .value = 5, .divider = 5 }, | |||||
{ .value = 6, .divider = 6 }, | |||||
{ .value = 0, .divider = 0 } | |||||
}; | |||||
static struct clk_div_table a37x0_periph_clk_table_2 [] = { | |||||
{ .value = 0, .divider = 1 }, | |||||
{ .value = 1, .divider = 2 }, | |||||
{ .value = 2, .divider = 4 }, | |||||
{ .value = 3, .divider = 1 } | |||||
}; | |||||
static struct a37x0_periph_clknode_def a37x0_nb_devices [] = { | |||||
CLK_FULL_DD("mmc", 0, 2, 0, 0, DIV_SEL2, DIV_SEL2, 16, 13, | |||||
"tbg_mux_mmc_50", "div1_mmc_51", "div2_mmc_52", "clk_mux_mmc_53"), | |||||
CLK_FULL_DD("sata_host", 1, 3, 2, 1, DIV_SEL2, DIV_SEL2, 10, 7, | |||||
"tbg_sata_host_mmc_55", "div1_sata_host_56", "div2_sata_host_57", | |||||
"clk_sata_host_mmc_58"), | |||||
CLK_FULL_DD("sec_at", 2, 6, 4, 2, DIV_SEL1, DIV_SEL1, 3, 0, | |||||
"tbg_mux_sec_at_60", "div1_sec_at_61", "div2_sec_at_62", | |||||
"clk_mux_sec_at_63"), | |||||
CLK_FULL_DD("sec_dap", 3, 7, 6, 3, DIV_SEL1, DIV_SEL1, 9, 6, | |||||
"tbg_mux_sec_dap_65", "div1_sec_dap_67", "div2_sec_dap_68", | |||||
"clk_mux_sec_dap_69"), | |||||
CLK_FULL_DD("tsecm", 4, 8, 8, 4, DIV_SEL1, DIV_SEL1, 15, 12, | |||||
"tbg_mux_tsecm_71", "div1_tsecm_72", "div2_tsecm_73", | |||||
"clk_mux_tsecm_74"), | |||||
CLK_FULL("setm_tmx", 5, 10, 10, 5, DIV_SEL1, 18, | |||||
a37x0_periph_clk_table_6, "tbg_mux_setm_tmx_76", | |||||
"div1_setm_tmx_77", "clk_mux_setm_tmx_78"), | |||||
CLK_FIXED("avs", 6, 11, 6, "mux_avs_80", "fixed1_avs_82"), | |||||
CLK_FULL_DD("pwm", 7, 13, 14, 8, DIV_SEL0, DIV_SEL0, 3, 0, | |||||
"tbg_mux_pwm_83", "div1_pwm_84", "div2_pwm_85", "clk_mux_pwm_86"), | |||||
CLK_FULL_DD("sqf", 8, 12, 12, 7, DIV_SEL1, DIV_SEL1, 27, 14, | |||||
"tbg_mux_sqf_88", "div1_sqf_89", "div2_sqf_90", "clk_mux_sqf_91"), | |||||
CLK_GATE("i2c_2", 9, 16, NULL), | |||||
CLK_GATE("i2c_1", 10, 17, NULL), | |||||
CLK_MUX_GATE_FIXED("ddr_phy", 11, 19, 10, "mux_ddr_phy_95", | |||||
"gate_ddr_phy_96", "fixed1_ddr_phy_97"), | |||||
CLK_FULL_DD("ddr_fclk", 12, 21, 16, 11, DIV_SEL0, DIV_SEL0, 15, 12, | |||||
"tbg_mux_ddr_fclk_99", "div1_ddr_fclk_100", "div2_ddr_fclk_101", | |||||
"clk_mux_ddr_fclk_102"), | |||||
CLK_FULL("trace", 13, 22, 18, 12, DIV_SEL0, 20, | |||||
a37x0_periph_clk_table_6, "tbg_mux_trace_104", "div1_trace_105", | |||||
"clk_mux_trace_106"), | |||||
CLK_FULL("counter", 14, 23, 20, 13, DIV_SEL0, 23, | |||||
a37x0_periph_clk_table_6, "tbg_mux_counter_108", | |||||
"div1_counter_109", "clk_mux_counter_110"), | |||||
CLK_FULL_DD("eip97", 15, 26, 24, 9, DIV_SEL2, DIV_SEL2, 22, 19, | |||||
"tbg_mux_eip97_112", "div1_eip97_113", "div2_eip97_114", | |||||
"clk_mux_eip97_115"), | |||||
CLK_CPU("cpu", 16, 22, 15, DIV_SEL0, 28, a37x0_periph_clk_table_2, | |||||
"tbg_mux_cpu_117", "div1_cpu_118"), | |||||
}; | |||||
static struct ofw_compat_data a37x0_periph_compat_data [] = { | |||||
{ "marvell,armada-3700-periph-clock-nb", 1 }, | |||||
{ NULL, 0 } | |||||
}; | |||||
static int a37x0_nb_periph_clk_attach(device_t); | |||||
static int a37x0_nb_periph_clk_probe(device_t); | |||||
static device_method_t a37x0_nb_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_nb_periph_clk_attach), | |||||
DEVMETHOD(device_detach, a37x0_periph_clk_detach), | |||||
DEVMETHOD(device_probe, a37x0_nb_periph_clk_probe), | |||||
DEVMETHOD_END | |||||
}; | |||||
static driver_t a37x0_nb_periph_driver = { | |||||
"a37x0_nb_periph_driver", | |||||
a37x0_nb_periph_clk_methods, | |||||
sizeof(struct a37x0_periph_clk_softc) | |||||
}; | |||||
devclass_t a37x0_nb_periph_devclass; | |||||
EARLY_DRIVER_MODULE(a37x0_nb_periph, simplebus, a37x0_nb_periph_driver, | |||||
a37x0_nb_periph_devclass, 0, 0, BUS_PASS_TIMER + BUS_PASS_ORDER_LATE); | |||||
static int | |||||
a37x0_nb_periph_clk_attach(device_t dev) | |||||
{ | |||||
struct a37x0_periph_clk_softc *sc; | |||||
sc = device_get_softc(dev); | |||||
sc->devices = a37x0_nb_devices; | |||||
sc->device_count = NB_DEV_COUNT; | |||||
return (a37x0_periph_clk_attach(dev)); | |||||
} | |||||
static int | |||||
a37x0_nb_periph_clk_probe(device_t dev) | |||||
{ | |||||
if (!ofw_bus_status_okay(dev)) | |||||
return (ENXIO); | |||||
if (!ofw_bus_search_compatible(dev, | |||||
a37x0_periph_compat_data)->ocd_data) | |||||
return (ENXIO); | |||||
device_set_desc(dev, "marvell,armada-3700-nb-periph-clock"); | |||||
return (BUS_PROBE_DEFAULT); | |||||
} |