Page MenuHomeFreeBSD
Files F144510685

D7763.id21529.diff
No OneTemporary
Actions

D7763.id21529.diff
View Options

Index: sys/arm/annapurna/alpine/alpine_serdes.h
===================================================================
--- /dev/null
+++ sys/arm/annapurna/alpine/alpine_serdes.h
@@ -0,0 +1,61 @@
+/*-
+ * Copyright (c) 2015,2016 Annapurna Labs Ltd. and affiliates
+ * All rights reserved.
+ *
+ * Developed by 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef __ALPINE_SERDES_H__
+#define __ALPINE_SERDES_H__
+
+/* SerDes ETH mode */
+enum alpine_serdes_eth_mode {
+ ALPINE_SERDES_ETH_MODE_SGMII,
+ ALPINE_SERDES_ETH_MODE_KR,
+};
+
+/*
+ * Get SerDes group regs base, to be used in relevant Alpine drivers.
+ * Valid group is 0..3.
+ * Returns virtual base address of the group regs base.
+ */
+void *alpine_serdes_resource_get(uint32_t group);
+
+/*
+ * Set SerDes ETH mode for an entire group, unless already set
+ * Valid group is 0..3.
+ * Returns 0 upon success.
+ */
+int alpine_serdes_eth_mode_set(uint32_t group,
+ enum alpine_serdes_eth_mode mode);
+
+/* Lock the all serdes group for using common registers */
+void alpine_serdes_eth_group_lock(uint32_t group);
+
+/* Unlock the all serdes group for using common registers */
+void alpine_serdes_eth_group_unlock(uint32_t group);
+
+#endif /* __ALPINE_SERDES_H__ */
Index: sys/arm/annapurna/alpine/alpine_serdes.c
===================================================================
--- /dev/null
+++ sys/arm/annapurna/alpine/alpine_serdes.c
@@ -0,0 +1,225 @@
+/*-
+ * Copyright (c) 2015,2016 Annapurna Labs Ltd. and affiliates
+ * All rights reserved.
+ *
+ * Developed by 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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <sys/rman.h>
+#include <sys/conf.h>
+#include <sys/resource.h>
+
+#include <machine/bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include "al_serdes.h"
+#include "alpine_serdes.h"
+
+#define SERDES_NUM_GROUPS 5
+
+static void *serdes_base;
+static uint32_t serdes_grp_offset[] = {0, 0x400, 0x800, 0xc00, 0x2000};
+
+static struct alpine_serdes_eth_group_mode {
+ struct mtx lock;
+ enum alpine_serdes_eth_mode mode;
+ bool mode_set;
+} alpine_serdes_eth_group_mode[SERDES_NUM_GROUPS];
+
+static int al_serdes_probe(device_t dev);
+static int al_serdes_attach(device_t dev);
+static int al_serdes_detach(device_t dev);
+
+static struct resource_spec al_serdes_spec[] = {
+ { SYS_RES_MEMORY, 0, RF_ACTIVE },
+ { -1, 0 }
+};
+
+struct al_serdes_softc {
+ struct resource *res;
+};
+
+static device_method_t al_serdes_methods[] = {
+ DEVMETHOD(device_probe, al_serdes_probe),
+ DEVMETHOD(device_attach, al_serdes_attach),
+ DEVMETHOD(device_detach, al_serdes_detach),
+
+ DEVMETHOD_END
+};
+
+static driver_t al_serdes_driver = {
+ "serdes",
+ al_serdes_methods,
+ sizeof(struct al_serdes_softc)
+};
+
+static devclass_t al_serdes_devclass;
+
+DRIVER_MODULE(al_serdes, simplebus, al_serdes_driver,
+ al_serdes_devclass, 0, 0);
+DRIVER_MODULE(al_serdes, ofwbus, al_serdes_driver,
+ al_serdes_devclass, 0, 0);
+
+static int
+al_serdes_probe(device_t dev)
+{
+
+ if (!ofw_bus_status_okay(dev))
+ return (ENXIO);
+
+ if (!ofw_bus_is_compatible(dev, "annapurna-labs,al-serdes"))
+ return (ENXIO);
+
+ device_set_desc(dev, "Alpine Serdes");
+
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+al_serdes_attach(device_t dev)
+{
+ struct al_serdes_softc *sc;
+ int err;
+
+ sc = device_get_softc(dev);
+
+ err = bus_alloc_resources(dev, al_serdes_spec, &sc->res);
+ if (err != 0) {
+ device_printf(dev, "could not allocate resources\n");
+ return (err);
+ }
+
+ /* Initialize Serdes group locks and mode */
+ for (int i = 0; i < nitems(alpine_serdes_eth_group_mode); i++) {
+ mtx_init(&alpine_serdes_eth_group_mode[i].lock, "AlSerdesMtx",
+ NULL, MTX_DEF);
+ alpine_serdes_eth_group_mode[i].mode_set = false;
+ }
+
+ serdes_base = (void *)rman_get_bushandle(sc->res);
+
+ return (0);
+}
+
+static int
+al_serdes_detach(device_t dev)
+{
+ struct al_serdes_softc *sc;
+
+ sc = device_get_softc(dev);
+
+ bus_release_resources(dev, al_serdes_spec, &sc->res);
+
+ for (int i = 0; i < nitems(alpine_serdes_eth_group_mode); i++) {
+ mtx_destroy(&alpine_serdes_eth_group_mode[i].lock);
+ alpine_serdes_eth_group_mode[i].mode_set = false;
+ }
+
+ return (0);
+}
+
+void *
+alpine_serdes_resource_get(uint32_t group)
+{
+ void *base;
+
+ base = NULL;
+ if (group >= SERDES_NUM_GROUPS)
+ return (NULL);
+
+ if (serdes_base != NULL)
+ base = (void *)((uintptr_t)serdes_base +
+ serdes_grp_offset[group]);
+
+ return (base);
+}
+
+int
+alpine_serdes_eth_mode_set(uint32_t group, enum alpine_serdes_eth_mode mode)
+{
+ struct alpine_serdes_eth_group_mode *group_mode;
+
+ group_mode = &alpine_serdes_eth_group_mode[group];
+
+ if (serdes_base == NULL)
+ return (EINVAL);
+
+ if (group >= SERDES_NUM_GROUPS)
+ return (EINVAL);
+
+ mtx_lock(&group_mode->lock);
+
+ if (!group_mode->mode_set || (group_mode->mode != mode)) {
+ struct al_serdes_grp_obj obj;
+
+ al_serdes_handle_grp_init(alpine_serdes_resource_get(group),
+ group, &obj);
+
+ if (mode == ALPINE_SERDES_ETH_MODE_SGMII)
+ obj.mode_set_sgmii(&obj);
+ else
+ obj.mode_set_kr(&obj);
+
+ group_mode->mode = mode;
+ group_mode->mode_set = true;
+ }
+
+ mtx_unlock(&group_mode->lock);
+
+ return (0);
+}
+
+void
+alpine_serdes_eth_group_lock(uint32_t group)
+{
+ struct alpine_serdes_eth_group_mode *group_mode;
+
+ group_mode = &alpine_serdes_eth_group_mode[group];
+
+ if (mtx_initialized(&group_mode->lock) == 0)
+ return;
+
+ mtx_lock(&group_mode->lock);
+}
+
+void
+alpine_serdes_eth_group_unlock(uint32_t group)
+{
+ struct alpine_serdes_eth_group_mode *group_mode;
+
+ group_mode = &alpine_serdes_eth_group_mode[group];
+
+ if (mtx_initialized(&group_mode->lock) == 0)
+ return;
+
+ mtx_unlock(&group_mode->lock);
+}
Index: sys/boot/fdt/dts/arm/annapurna-alpine.dts
===================================================================
--- sys/boot/fdt/dts/arm/annapurna-alpine.dts
+++ sys/boot/fdt/dts/arm/annapurna-alpine.dts
@@ -159,6 +159,12 @@
interrupt-parent = <&MPIC>;
};
+ /* SerDes */
+ serdes {
+ compatible = "annapurna-labs,al-serdes";
+ reg = <0x28c0000 0x1000>;
+ };
+
serial0: serial@2883000 {
compatible = "ns16550";
reg = <0x2883000 0x20>;
Index: sys/conf/files.arm
===================================================================
--- sys/conf/files.arm
+++ sys/conf/files.arm
@@ -15,6 +15,9 @@
arm/annapurna/alpine/alpine_nb_service.c optional al_nb_service fdt
arm/annapurna/alpine/alpine_pci.c optional al_pci fdt
arm/annapurna/alpine/alpine_pci_msix.c optional al_pci fdt
+arm/annapurna/alpine/alpine_serdes.c optional al_serdes fdt \
+ no-depend \
+ compile-with "${CC} -c -o ${.TARGET} ${CFLAGS} -I$S/contrib/alpine-hal -I$S/contrib/alpine-hal/eth ${PROF} ${.IMPSRC}"
arm/arm/autoconf.c standard
arm/arm/bcopy_page.S standard
arm/arm/bcopyinout.S standard
Index: sys/conf/files.arm64
===================================================================
--- sys/conf/files.arm64
+++ sys/conf/files.arm64
@@ -42,6 +42,9 @@
arm/annapurna/alpine/alpine_nb_service.c optional al_nb_service fdt
arm/annapurna/alpine/alpine_pci.c optional al_pci fdt
arm/annapurna/alpine/alpine_pci_msix.c optional al_pci fdt
+arm/annapurna/alpine/alpine_serdes.c optional al_serdes fdt \
+ no-depend \
+ compile-with "${CC} -c -o ${.TARGET} ${CFLAGS} -I$S/contrib/alpine-hal -I$S/contrib/alpine-hal/eth ${PROF} ${.IMPSRC}"
arm/arm/generic_timer.c standard
arm/arm/gic.c standard
arm/arm/gic_fdt.c optional fdt

File Metadata

Mime Type
text/plain
Expires
Tue, Feb 10, 12:35 AM (1 h, 15 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
28608553
Default Alt Text
D7763.id21529.diff (9 KB)

Event Timeline