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-rw-r--r--sys/arm/allwinner/aw_ccu.c252
1 files changed, 0 insertions, 252 deletions
diff --git a/sys/arm/allwinner/aw_ccu.c b/sys/arm/allwinner/aw_ccu.c
deleted file mode 100644
index ce31ad4f4c46..000000000000
--- a/sys/arm/allwinner/aw_ccu.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*-
- * Copyright (c) 2016 Jared McNeill <jmcneill@invisible.ca>
- *
- * 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.
- *
- * $FreeBSD$
- */
-
-/*
- * Allwinner oscillator clock
- */
-
-#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/lock.h>
-#include <sys/module.h>
-#include <sys/mutex.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.h>
-
-#include "clkdev_if.h"
-
-#define CCU_BASE 0x01c20000
-#define CCU_SIZE 0x400
-
-struct aw_ccu_softc {
- struct simplebus_softc sc;
- bus_space_tag_t bst;
- bus_space_handle_t bsh;
- struct mtx mtx;
- int flags;
-};
-
-static struct ofw_compat_data compat_data[] = {
- { "allwinner,sun7i-a20", 1 },
- { "allwinner,sun6i-a31", 1 },
- { "allwinner,sun6i-a31s", 1 },
- { NULL, 0 }
-};
-
-static int
-aw_ccu_check_addr(struct aw_ccu_softc *sc, bus_addr_t addr,
- bus_space_handle_t *pbsh, bus_size_t *poff)
-{
- if (addr >= CCU_BASE && addr < (CCU_BASE + CCU_SIZE)) {
- *poff = addr - CCU_BASE;
- *pbsh = sc->bsh;
- return (0);
- }
- return (EINVAL);
-}
-
-static int
-aw_ccu_write_4(device_t dev, bus_addr_t addr, uint32_t val)
-{
- struct aw_ccu_softc *sc;
- bus_space_handle_t bsh;
- bus_size_t reg;
-
- sc = device_get_softc(dev);
-
- if (aw_ccu_check_addr(sc, addr, &bsh, &reg) != 0)
- return (EINVAL);
-
- mtx_assert(&sc->mtx, MA_OWNED);
- bus_space_write_4(sc->bst, bsh, reg, val);
-
- return (0);
-}
-
-static int
-aw_ccu_read_4(device_t dev, bus_addr_t addr, uint32_t *val)
-{
- struct aw_ccu_softc *sc;
- bus_space_handle_t bsh;
- bus_size_t reg;
-
- sc = device_get_softc(dev);
-
- if (aw_ccu_check_addr(sc, addr, &bsh, &reg) != 0)
- return (EINVAL);
-
- mtx_assert(&sc->mtx, MA_OWNED);
- *val = bus_space_read_4(sc->bst, bsh, reg);
-
- return (0);
-}
-
-static int
-aw_ccu_modify_4(device_t dev, bus_addr_t addr, uint32_t clr, uint32_t set)
-{
- struct aw_ccu_softc *sc;
- bus_space_handle_t bsh;
- bus_size_t reg;
- uint32_t val;
-
- sc = device_get_softc(dev);
-
- if (aw_ccu_check_addr(sc, addr, &bsh, &reg) != 0)
- return (EINVAL);
-
- mtx_assert(&sc->mtx, MA_OWNED);
- val = bus_space_read_4(sc->bst, bsh, reg);
- val &= ~clr;
- val |= set;
- bus_space_write_4(sc->bst, bsh, reg, val);
-
- return (0);
-}
-
-static void
-aw_ccu_device_lock(device_t dev)
-{
- struct aw_ccu_softc *sc;
-
- sc = device_get_softc(dev);
- mtx_lock(&sc->mtx);
-}
-
-static void
-aw_ccu_device_unlock(device_t dev)
-{
- struct aw_ccu_softc *sc;
-
- sc = device_get_softc(dev);
- mtx_unlock(&sc->mtx);
-}
-
-static const struct ofw_compat_data *
-aw_ccu_search_compatible(void)
-{
- const struct ofw_compat_data *compat;
- phandle_t root;
-
- root = OF_finddevice("/");
- for (compat = compat_data; compat->ocd_str != NULL; compat++)
- if (ofw_bus_node_is_compatible(root, compat->ocd_str))
- break;
-
- return (compat);
-}
-
-static int
-aw_ccu_probe(device_t dev)
-{
- const char *name;
-
- name = ofw_bus_get_name(dev);
-
- if (name == NULL || strcmp(name, "clocks") != 0)
- return (ENXIO);
-
- if (aw_ccu_search_compatible()->ocd_data == 0)
- return (ENXIO);
-
- device_set_desc(dev, "Allwinner Clock Control Unit");
- return (BUS_PROBE_SPECIFIC);
-}
-
-static int
-aw_ccu_attach(device_t dev)
-{
- struct aw_ccu_softc *sc;
- phandle_t node, child;
- device_t cdev;
- int error;
-
- sc = device_get_softc(dev);
- node = ofw_bus_get_node(dev);
-
- simplebus_init(dev, node);
-
- sc->flags = aw_ccu_search_compatible()->ocd_data;
-
- /*
- * Map registers. The DT doesn't have a "reg" property
- * for the /clocks node and child nodes have conflicting "reg"
- * properties.
- */
- sc->bst = bus_get_bus_tag(dev);
- error = bus_space_map(sc->bst, CCU_BASE, CCU_SIZE, 0,
- &sc->bsh);
- if (error != 0) {
- device_printf(dev, "couldn't map CCU: %d\n", error);
- return (error);
- }
-
- mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);
-
- /* Attach child devices */
- for (child = OF_child(node); child > 0; child = OF_peer(child)) {
- cdev = simplebus_add_device(dev, child, 0, NULL, -1, NULL);
- if (cdev != NULL)
- device_probe_and_attach(cdev);
- }
-
- return (bus_generic_attach(dev));
-}
-
-static device_method_t aw_ccu_methods[] = {
- /* Device interface */
- DEVMETHOD(device_probe, aw_ccu_probe),
- DEVMETHOD(device_attach, aw_ccu_attach),
-
- /* clkdev interface */
- DEVMETHOD(clkdev_write_4, aw_ccu_write_4),
- DEVMETHOD(clkdev_read_4, aw_ccu_read_4),
- DEVMETHOD(clkdev_modify_4, aw_ccu_modify_4),
- DEVMETHOD(clkdev_device_lock, aw_ccu_device_lock),
- DEVMETHOD(clkdev_device_unlock, aw_ccu_device_unlock),
-
- DEVMETHOD_END
-};
-
-DEFINE_CLASS_1(aw_ccu, aw_ccu_driver, aw_ccu_methods,
- sizeof(struct aw_ccu_softc), simplebus_driver);
-
-EARLY_DRIVER_MODULE(aw_ccu, simplebus, aw_ccu_driver, 0, 0,
- BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
-
-MODULE_VERSION(aw_ccu, 1);