svn commit: r297667 - head/sys/mips/mediatek
Stanislav Galabov
sgalabov at FreeBSD.org
Thu Apr 7 11:08:52 UTC 2016
Author: sgalabov
Date: Thu Apr 7 11:08:50 2016
New Revision: 297667
URL: https://svnweb.freebsd.org/changeset/base/297667
Log:
Initial import of Ralink/Mediatek MIPS SoC support #2
This revision adds the following to the Mediatek/Ralink support:
- initial support for "clocks" FDT property, currently based on fdt_clock
- initial support for "resets" FDT property, currently based on the
fdt_reset interface from D5826
- initial support for "pinctrl,bits" functionality via FDT. May be extended
in the future to cover a better and fuller pinctrl implementation
Approved by: adrian (mentor)
Sponsored by: Smartcom - Bulgaria AD
Differential Revision: https://reviews.freebsd.org/D5827
Added:
head/sys/mips/mediatek/mtk_clock.c (contents, props changed)
head/sys/mips/mediatek/mtk_pinctrl.c (contents, props changed)
head/sys/mips/mediatek/mtk_reset.c (contents, props changed)
Added: head/sys/mips/mediatek/mtk_clock.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/mips/mediatek/mtk_clock.c Thu Apr 7 11:08:50 2016 (r297667)
@@ -0,0 +1,156 @@
+/*-
+ * Copyright (c) 2016 Stanislav Galabov
+ * All rights reserved.
+ *
+ * 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,
+ * without modification, immediately at the beginning of the file.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * 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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+#include <sys/module.h>
+
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+#include <dev/fdt/fdt_clock.h>
+
+#include <mips/mediatek/mtk_sysctl.h>
+
+#include "fdt_clock_if.h"
+
+static const struct ofw_compat_data compat_data[] = {
+ { "ralink,rt2880-clock", 1 },
+
+ /* Sentinel */
+ { NULL, 0 }
+};
+
+static int
+mtk_clock_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, "MTK Clock Controller");
+
+ return (0);
+}
+
+static int
+mtk_clock_attach(device_t dev)
+{
+
+ if (device_get_unit(dev) != 0) {
+ device_printf(dev, "Only one clock control allowed\n");
+ return (ENXIO);
+ }
+
+ fdt_clock_register_provider(dev);
+
+ return (0);
+}
+
+#define CLOCK_ENABLE 1
+#define CLOCK_DISABLE 0
+
+static int
+mtk_clock_set(device_t dev, int index, int value)
+{
+ uint32_t mask;
+
+ /* Clock config register holds 32 clock gating bits */
+ if (index < 0 || index > 31)
+ return (EINVAL);
+
+ mask = (1u << index);
+
+ if (value == CLOCK_ENABLE)
+ mtk_sysctl_clr_set(SYSCTL_CLKCFG1, 0, mask);
+ else
+ mtk_sysctl_clr_set(SYSCTL_CLKCFG1, mask, 0);
+
+ return (0);
+}
+
+static int
+mtk_clock_enable(device_t dev, int index)
+{
+
+ return mtk_clock_set(dev, index, CLOCK_ENABLE);
+}
+
+static int
+mtk_clock_disable(device_t dev, int index)
+{
+
+ return mtk_clock_set(dev, index, CLOCK_DISABLE);
+}
+
+static int
+mtk_clock_get_info(device_t dev, int index, struct fdt_clock_info *info)
+{
+ uint32_t mask;
+
+ if (index < 0 || index > 31 || info == NULL)
+ return (EINVAL);
+
+ if (mtk_sysctl_get(SYSCTL_CLKCFG1) & mask)
+ info->flags = FDT_CIFLAG_RUNNING;
+ else
+ info->flags = 0;
+
+ return (0);
+}
+
+static device_method_t mtk_clock_methods[] = {
+ DEVMETHOD(device_probe, mtk_clock_probe),
+ DEVMETHOD(device_attach, mtk_clock_attach),
+
+ /* fdt_clock interface */
+ DEVMETHOD(fdt_clock_enable, mtk_clock_enable),
+ DEVMETHOD(fdt_clock_disable, mtk_clock_disable),
+ DEVMETHOD(fdt_clock_get_info, mtk_clock_get_info),
+
+ DEVMETHOD_END
+};
+
+static driver_t mtk_clock_driver = {
+ "clkctrl",
+ mtk_clock_methods,
+ 0,
+};
+static devclass_t mtk_clock_devclass;
+
+EARLY_DRIVER_MODULE(mtk_clock, simplebus, mtk_clock_driver, mtk_clock_devclass,
+ 0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_EARLY);
+
+MODULE_DEPEND(mtk_clock, mtk_sysctl, 1, 1, 1);
Added: head/sys/mips/mediatek/mtk_pinctrl.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/mips/mediatek/mtk_pinctrl.c Thu Apr 7 11:08:50 2016 (r297667)
@@ -0,0 +1,114 @@
+/*-
+ * Copyright (c) 2016 Stanislav Galabov
+ * All rights reserved.
+ *
+ * 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,
+ * without modification, immediately at the beginning of the file.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * 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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+#include <sys/module.h>
+
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <dev/fdt/fdt_pinctrl.h>
+#include <mips/mediatek/mtk_sysctl.h>
+
+#include "fdt_pinctrl_if.h"
+
+static const struct ofw_compat_data compat_data[] = {
+ { "ralink,rt2880-pinctrl", 1 },
+
+ /* Sentinel */
+ { NULL, 0 }
+};
+
+static int
+mtk_pinctrl_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, "MTK Pin Controller");
+
+ return (0);
+}
+
+static int
+mtk_pinctrl_attach(device_t dev)
+{
+
+ if (device_get_unit(dev) != 0) {
+ device_printf(dev, "Only one pin control allowed\n");
+ return (ENXIO);
+ }
+
+ fdt_pinctrl_register(dev, "pinctrl-single,bits");
+ fdt_pinctrl_configure_tree(dev);
+
+ if (bootverbose)
+ device_printf(dev, "GPIO mode: 0x%08x\n",
+ mtk_sysctl_get(SYSCTL_GPIOMODE));
+
+ return (0);
+}
+
+static int
+mtk_pinctrl_configure(device_t dev, phandle_t cfgxref)
+{
+
+ return (EINVAL);
+}
+
+static device_method_t mtk_pinctrl_methods[] = {
+ DEVMETHOD(device_probe, mtk_pinctrl_probe),
+ DEVMETHOD(device_attach, mtk_pinctrl_attach),
+
+ /* fdt_pinctrl interface */
+ DEVMETHOD(fdt_pinctrl_configure, mtk_pinctrl_configure),
+
+ DEVMETHOD_END
+};
+
+static driver_t mtk_pinctrl_driver = {
+ "pinctrl",
+ mtk_pinctrl_methods,
+ 0,
+};
+static devclass_t mtk_pinctrl_devclass;
+
+EARLY_DRIVER_MODULE(mtk_pinctrl, simplebus, mtk_pinctrl_driver,
+ mtk_pinctrl_devclass, 0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_EARLY);
+
+MODULE_DEPEND(mtk_pinctrl, mtk_sysctl, 1, 1, 1);
Added: head/sys/mips/mediatek/mtk_reset.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/mips/mediatek/mtk_reset.c Thu Apr 7 11:08:50 2016 (r297667)
@@ -0,0 +1,139 @@
+/*-
+ * Copyright (c) 2016 Stanislav Galabov
+ * All rights reserved.
+ *
+ * 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,
+ * without modification, immediately at the beginning of the file.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * 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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+#include <sys/module.h>
+
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <mips/mediatek/fdt_reset.h>
+#include <mips/mediatek/mtk_sysctl.h>
+
+#include "fdt_reset_if.h"
+
+static const struct ofw_compat_data compat_data[] = {
+ { "ralink,rt2880-reset", 1 },
+
+ /* Sentinel */
+ { NULL, 0 }
+};
+
+static int
+mtk_reset_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, "MTK Reset Controller");
+
+ return (0);
+}
+
+static int
+mtk_reset_attach(device_t dev)
+{
+
+ if (device_get_unit(dev) != 0) {
+ device_printf(dev, "Only one reset control allowed\n");
+ return (ENXIO);
+ }
+
+ fdt_reset_register_provider(dev);
+
+ return (0);
+}
+
+#define RESET_ASSERT 1
+#define RESET_DEASSERT 0
+
+static int
+mtk_reset_set(device_t dev, int index, int value)
+{
+ uint32_t mask;
+
+ /* index 0 is SoC reset, indices 1 - 31 are valid peripheral resets */
+ if (index < 1 || index > 31)
+ return (EINVAL);
+
+ mask = (1u << index);
+
+ if (value == RESET_ASSERT)
+ mtk_sysctl_clr_set(SYSCTL_RSTCTRL, 0, mask);
+ else
+ mtk_sysctl_clr_set(SYSCTL_RSTCTRL, mask, 0);
+
+ return (0);
+}
+
+static int
+mtk_reset_assert(device_t dev, int index)
+{
+
+ return mtk_reset_set(dev, index, RESET_ASSERT);
+}
+
+static int
+mtk_reset_deassert(device_t dev, int index)
+{
+
+ return mtk_reset_set(dev, index, RESET_DEASSERT);
+}
+
+static device_method_t mtk_reset_methods[] = {
+ DEVMETHOD(device_probe, mtk_reset_probe),
+ DEVMETHOD(device_attach, mtk_reset_attach),
+
+ /* fdt_reset interface */
+ DEVMETHOD(fdt_reset_assert, mtk_reset_assert),
+ DEVMETHOD(fdt_reset_deassert, mtk_reset_deassert),
+
+ DEVMETHOD_END
+};
+
+static driver_t mtk_reset_driver = {
+ "rstctrl",
+ mtk_reset_methods,
+ 0,
+};
+static devclass_t mtk_reset_devclass;
+
+EARLY_DRIVER_MODULE(mtk_reset, simplebus, mtk_reset_driver, mtk_reset_devclass,
+ 0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_EARLY);
+
+MODULE_DEPEND(mtk_reset, mtk_sysctl, 1, 1, 1);
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