6c4464cb74
This adds support for H6 SoC. Add a CCU driver for H6 that support all PLLs and most of the clocks that we are intersted in for now (i2c, mmc, usb, etc ...) MFC after: 1 month
173 lines
5.5 KiB
C
173 lines
5.5 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (c) 2019 Emmanuel Vadot <manu@freebsd.org>
|
|
*
|
|
* 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 ``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 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/fdt/simplebus.h>
|
|
|
|
#include <dev/ofw/ofw_bus.h>
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
#include <dev/extres/clk/clk_div.h>
|
|
#include <dev/extres/clk/clk_fixed.h>
|
|
#include <dev/extres/clk/clk_mux.h>
|
|
|
|
#include <arm/allwinner/clkng/aw_ccung.h>
|
|
|
|
#include <gnu/dts/include/dt-bindings/clock/sun50i-h6-r-ccu.h>
|
|
#include <gnu/dts/include/dt-bindings/reset/sun50i-h6-r-ccu.h>
|
|
|
|
/* Non-exported clocks */
|
|
#define CLK_R_AHB 1
|
|
#define CLK_R_APB2 3
|
|
|
|
static struct aw_ccung_reset ccu_sun50i_h6_r_resets[] = {
|
|
CCU_RESET(RST_R_APB1_TIMER, 0x11c, 16)
|
|
CCU_RESET(RST_R_APB1_TWD, 0x12c, 16)
|
|
CCU_RESET(RST_R_APB1_PWM, 0x13c, 16)
|
|
CCU_RESET(RST_R_APB2_UART, 0x18c, 16)
|
|
CCU_RESET(RST_R_APB2_I2C, 0x19c, 16)
|
|
CCU_RESET(RST_R_APB1_IR, 0x1cc, 16)
|
|
CCU_RESET(RST_R_APB1_W1, 0x1ec, 16)
|
|
};
|
|
|
|
static struct aw_ccung_gate ccu_sun50i_h6_r_gates[] = {
|
|
CCU_GATE(CLK_R_APB1_TIMER, "r_apb1-timer", "r_apb1", 0x11c, 0)
|
|
CCU_GATE(CLK_R_APB1_TWD, "r_apb1-twd", "r_apb1", 0x12c, 0)
|
|
CCU_GATE(CLK_R_APB1_PWM, "r_apb1-pwm", "r_apb1", 0x13c, 0)
|
|
CCU_GATE(CLK_R_APB2_UART, "r_apb1-uart", "r_apb2", 0x18c, 0)
|
|
CCU_GATE(CLK_R_APB2_I2C, "r_apb1-i2c", "r_apb2", 0x19c, 0)
|
|
CCU_GATE(CLK_R_APB1_IR, "r_apb1-ir", "r_apb1", 0x1cc, 0)
|
|
CCU_GATE(CLK_R_APB1_W1, "r_apb1-w1", "r_apb1", 0x1ec, 0)
|
|
};
|
|
|
|
static const char *ar100_parents[] = {"osc24M", "osc32k", "pll_periph0", "iosc"};
|
|
PREDIV_CLK(ar100_clk, CLK_AR100, /* id */
|
|
"ar100", ar100_parents, /* name, parents */
|
|
0x00, /* offset */
|
|
16, 2, /* mux */
|
|
4, 2, 0, AW_CLK_FACTOR_POWER_OF_TWO, /* div */
|
|
8, 5, 0, AW_CLK_FACTOR_HAS_COND, /* prediv */
|
|
16, 2, 2); /* prediv condition */
|
|
|
|
static const char *r_ahb_parents[] = {"ar100"};
|
|
FIXED_CLK(r_ahb_clk,
|
|
CLK_R_AHB, /* id */
|
|
"r_ahb", /* name */
|
|
r_ahb_parents, /* parent */
|
|
0, /* freq */
|
|
1, /* mult */
|
|
1, /* div */
|
|
0); /* flags */
|
|
|
|
static const char *r_apb1_parents[] = {"r_ahb"};
|
|
DIV_CLK(r_apb1_clk,
|
|
CLK_R_APB1, /* id */
|
|
"r_apb1", r_apb1_parents, /* name, parents */
|
|
0x0c, /* offset */
|
|
0, 2, /* shift, width */
|
|
0, NULL); /* flags, div table */
|
|
|
|
static const char *r_apb2_parents[] = {"osc24M", "osc32k", "pll_periph0", "iosc"};
|
|
PREDIV_CLK(r_apb2_clk, CLK_R_APB2, /* id */
|
|
"r_apb2", r_apb2_parents, /* name, parents */
|
|
0x10, /* offset */
|
|
16, 2, /* mux */
|
|
4, 2, 0, AW_CLK_FACTOR_POWER_OF_TWO, /* div */
|
|
8, 5, 0, AW_CLK_FACTOR_HAS_COND, /* prediv */
|
|
16, 2, 2); /* prediv condition */
|
|
|
|
static struct aw_ccung_clk clks[] = {
|
|
{ .type = AW_CLK_PREDIV_MUX, .clk.prediv_mux = &ar100_clk},
|
|
{ .type = AW_CLK_FIXED, .clk.fixed = &r_ahb_clk},
|
|
{ .type = AW_CLK_DIV, .clk.div = &r_apb1_clk},
|
|
{ .type = AW_CLK_PREDIV_MUX, .clk.prediv_mux = &r_apb2_clk},
|
|
};
|
|
|
|
static struct ofw_compat_data compat_data[] = {
|
|
{ "allwinner,sun50i-h6-r-ccu", 1 },
|
|
{ NULL, 0},
|
|
};
|
|
|
|
static int
|
|
ccu_sun50i_h6_r_probe(device_t dev)
|
|
{
|
|
|
|
if (!ofw_bus_status_okay(dev))
|
|
return (ENXIO);
|
|
|
|
if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "Allwinner SUN50I_H6_R Clock Control Unit NG");
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
ccu_sun50i_h6_r_attach(device_t dev)
|
|
{
|
|
struct aw_ccung_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
sc->resets = ccu_sun50i_h6_r_resets;
|
|
sc->nresets = nitems(ccu_sun50i_h6_r_resets);
|
|
sc->gates = ccu_sun50i_h6_r_gates;
|
|
sc->ngates = nitems(ccu_sun50i_h6_r_gates);
|
|
sc->clks = clks;
|
|
sc->nclks = nitems(clks);
|
|
|
|
return (aw_ccung_attach(dev));
|
|
}
|
|
|
|
static device_method_t ccu_sun50i_h6_r_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, ccu_sun50i_h6_r_probe),
|
|
DEVMETHOD(device_attach, ccu_sun50i_h6_r_attach),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static devclass_t ccu_sun50i_h6_r_devclass;
|
|
|
|
DEFINE_CLASS_1(ccu_sun50i_h6_r, ccu_sun50i_h6_r_driver, ccu_sun50i_h6_r_methods,
|
|
sizeof(struct aw_ccung_softc), aw_ccung_driver);
|
|
|
|
EARLY_DRIVER_MODULE(ccu_sun50i_h6_r, simplebus, ccu_sun50i_h6_r_driver,
|
|
ccu_sun50i_h6_r_devclass, 0, 0, BUS_PASS_RESOURCE + BUS_PASS_ORDER_MIDDLE);
|