<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-size:small">Hello Gedare,</div><div class="gmail_default" style="font-size:small"><br></div></div><div dir="ltr"><div dir="ltr"><div style="font-size:small">On Wed, Jan 20, 2021 at 4:32 AM Gedare Bloom <<a href="mailto:gedare@rtems.org" target="_blank">gedare@rtems.org</a>> wrote:<br></div></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Does this have a ticket?</div></blockquote><div><div class="gmail_default" style="font-size:small">It doesn't have a specific ticket for itself, but the rationale behind this patch is to support ticket</div></div><div class="gmail_default" style="font-size:small"><a href="https://devel.rtems.org/ticket/3782" target="_blank">#3782</a>.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>I may have missed some email about this idea. It looks like a partial compatibility for the freebsd busspace API?</div></div></blockquote><div> </div><div class="gmail_default" style="font-size:small">This patch aims to reduce the number of modifications done to drivers imported from FreeBSD. An example of</div><div class="gmail_default" style="font-size:small">a driver imported from FreeBSD into RTEMS is the IMX iomux driver(imx_iomux.c).</div><div class="gmail_default" style="font-size:small">This patch implements functions and structures that are quite frequently used but also have a simple RTEMS</div><div class="gmail_default" style="font-size:small">implementation. The real use of this patch can be seen in the ported beagle pinmux driver</div><div class="gmail_default" style="font-size:small"><a href="https://github.com/gs-niteesh/rtems/commit/42590fb1c8c8e4228500f995ff6a7c0e0e607133">https://github.com/gs-niteesh/rtems/commit/42590fb1c8c8e4228500f995ff6a7c0e0e607133</a><br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">I have also written about the things this patch implements in my blog here.</div><div class="gmail_default" style="font-size:small"><a href="https://gs-niteesh.github.io/week/week2/#modifications-needed-before-implementing-the-freebsd-structures">https://gs-niteesh.github.io/week/week2/#modifications-needed-before-implementing-the-freebsd-structures</a><br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Thanks,</div><div class="gmail_default" style="font-size:small">Niteesh.</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Jan 19, 2021 at 9:20 AM G S Niteesh Babu <<a href="mailto:niteesh.gs@gmail.com" target="_blank">niteesh.gs@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">The following structures and functions have been implemented to<br>
make porting of driver from FreeBSD easier.<br>
<br>
1) struct resource_spec<br>
2) struct device<br>
3) struct resource<br>
4) device_get_softc<br>
5) bus_alloc_resources<br>
6) bus_alloc_resource<br>
7) bus_alloc_resource_any<br>
8) bus_space_read_1<br>
9) bus_space_read_2<br>
10) bus_space_read_4<br>
11) bus_space_write_1<br>
12) bus_space_write_2<br>
13) bus_space_write_4<br>
---<br>
bsps/include/rtems/freebsd-compat/bus.h | 122 +++++++++++++++++++<br>
bsps/include/rtems/freebsd-compat/device.h | 46 +++++++<br>
bsps/include/rtems/freebsd-compat/resource.h | 46 +++++++<br>
bsps/include/rtems/freebsd-compat/rman.h | 65 ++++++++++<br>
bsps/shared/rtems/freebsd-compat/bus.c | 119 ++++++++++++++++++<br>
spec/build/bsps/obj.yml | 1 +<br>
6 files changed, 399 insertions(+)<br>
create mode 100644 bsps/include/rtems/freebsd-compat/bus.h<br>
create mode 100644 bsps/include/rtems/freebsd-compat/device.h<br>
create mode 100644 bsps/include/rtems/freebsd-compat/resource.h<br>
create mode 100644 bsps/include/rtems/freebsd-compat/rman.h<br>
create mode 100644 bsps/shared/rtems/freebsd-compat/bus.c<br>
<br>
diff --git a/bsps/include/rtems/freebsd-compat/bus.h b/bsps/include/rtems/freebsd-compat/bus.h<br>
new file mode 100644<br>
index 0000000000..4bd3ab311a<br>
--- /dev/null<br>
+++ b/bsps/include/rtems/freebsd-compat/bus.h<br>
@@ -0,0 +1,122 @@<br>
+/* SPDX-License-Identifier: BSD-2-Clause */<br>
+<br>
+/**<br>
+ * @file<br>
+ *<br>
+ * @ingroup FreeBSDCompat<br>
+ *<br>
+ * @brief<br>
+ */<br>
+<br>
+/*<br>
+ * Copyright (C) <2020> Niteesh Babu <<a href="mailto:niteesh.gs@gmail.com" target="_blank">niteesh.gs@gmail.com</a>><br>
+ *<br>
+ * Redistribution and use in source and binary forms, with or without<br>
+ * modification, are permitted provided that the following conditions<br>
+ * are met:<br>
+ * 1. Redistributions of source code must retain the above copyright<br>
+ * notice, this list of conditions and the following disclaimer.<br>
+ * 2. Redistributions in binary form must reproduce the above copyright<br>
+ * notice, this list of conditions and the following disclaimer in the<br>
+ * documentation and/or other materials provided with the distribution.<br>
+ *<br>
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"<br>
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE<br>
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE<br>
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE<br>
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR<br>
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF<br>
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS<br>
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN<br>
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)<br>
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE<br>
+ * POSSIBILITY OF SUCH DAMAGE.<br>
+ */<br>
+<br>
+#ifndef _FREEBSD_COMPAT_BUS_H<br>
+#define _FREEBSD_COMPAT_BUS_H<br>
+<br>
+#include <sys/types.h><br>
+#include "device.h"<br>
+#include "rman.h"<br>
+<br>
+struct resource_spec {<br>
+ int type;<br>
+ int rid;<br>
+ int flags;<br>
+};<br>
+#define RESOURCE_SPEC_END {-1, 0, 0}<br>
+<br>
+/*<br>
+ * Write a 1, 2, 4, or 8 byte quantity to bus space<br>
+ * described by tag/handle/offset.<br>
+ */<br>
+static inline void<br>
+bus_space_write_1(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs,<br>
+ uint8_t val)<br>
+{<br>
+ uint8_t volatile *bsp = (uint8_t volatile *)(bsh + ofs);<br>
+ *bsp = val;<br>
+}<br>
+<br>
+static inline void<br>
+bus_space_write_2(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs,<br>
+ uint16_t val)<br>
+{<br>
+ uint16_t volatile *bsp = (uint16_t volatile *)(bsh + ofs);<br>
+ *bsp = val;<br>
+}<br>
+<br>
+static inline void<br>
+bus_space_write_4(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs,<br>
+ uint32_t val)<br>
+{<br>
+ uint32_t volatile *bsp = (uint32_t volatile *)(bsh + ofs);<br>
+ *bsp = val;<br>
+}<br>
+<br>
+/*<br>
+ * Read a 1, 2, 4, or 8 byte quantity from bus space<br>
+ * described by tag/handle/offset.<br>
+ */<br>
+static inline uint8_t<br>
+bus_space_read_1(bus_space_tag_t tag, bus_space_handle_t handle,<br>
+ bus_size_t offset)<br>
+{<br>
+<br>
+ return (*(volatile uint8_t *)(handle + offset));<br>
+}<br>
+<br>
+static inline uint16_t<br>
+bus_space_read_2(bus_space_tag_t tag, bus_space_handle_t handle,<br>
+ bus_size_t offset)<br>
+{<br>
+ return (*(volatile uint16_t *)(handle + offset));<br>
+}<br>
+<br>
+static inline uint32_t<br>
+bus_space_read_4(bus_space_tag_t tag, bus_space_handle_t handle,<br>
+ bus_size_t offset)<br>
+{<br>
+ return (*(volatile uint32_t *)(handle + offset));<br>
+}<br>
+<br>
+bus_space_handle_t rman_get_bushandle(struct resource *);<br>
+bus_space_tag_t rman_get_bustag(struct resource *);<br>
+<br>
+void *device_get_softc(device_t dev);<br>
+<br>
+int bus_alloc_resources(device_t dev, struct resource_spec *rs,<br>
+ struct resource **res);<br>
+<br>
+struct resource *bus_alloc_resource(device_t dev, int type, int *rid,<br>
+ rman_res_t start, rman_res_t end,<br>
+ rman_res_t count, u_int flags);<br>
+<br>
+static __inline struct resource *<br>
+bus_alloc_resource_any(device_t dev, int type, int *rid, uint32_t flags)<br>
+{<br>
+ return (bus_alloc_resource(dev, type, rid, 0, ~0, 1, flags));<br>
+}<br>
+<br>
+#endif /* _FREEBSD_COMPAT_BUS_H_ */<br>
diff --git a/bsps/include/rtems/freebsd-compat/device.h b/bsps/include/rtems/freebsd-compat/device.h<br>
new file mode 100644<br>
index 0000000000..c646bb5986<br>
--- /dev/null<br>
+++ b/bsps/include/rtems/freebsd-compat/device.h<br>
@@ -0,0 +1,46 @@<br>
+/* SPDX-License-Identifier: BSD-2-Clause */<br>
+<br>
+/**<br>
+ * @file<br>
+ *<br>
+ * @ingroup FreeBSDCompat<br>
+ *<br>
+ * @brief<br>
+ */<br>
+<br>
+/*<br>
+ * Copyright (C) <2020> Niteesh Babu <<a href="mailto:niteesh.gs@gmail.com" target="_blank">niteesh.gs@gmail.com</a>><br>
+ *<br>
+ * Redistribution and use in source and binary forms, with or without<br>
+ * modification, are permitted provided that the following conditions<br>
+ * are met:<br>
+ * 1. Redistributions of source code must retain the above copyright<br>
+ * notice, this list of conditions and the following disclaimer.<br>
+ * 2. Redistributions in binary form must reproduce the above copyright<br>
+ * notice, this list of conditions and the following disclaimer in the<br>
+ * documentation and/or other materials provided with the distribution.<br>
+ *<br>
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"<br>
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE<br>
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE<br>
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE<br>
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR<br>
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF<br>
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS<br>
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN<br>
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)<br>
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE<br>
+ * POSSIBILITY OF SUCH DAMAGE.<br>
+ */<br>
+<br>
+#ifndef _FREEBSD_COMPAT_DEVICE_H<br>
+#define _FREEBSD_COMPAT_DEVICE_H<br>
+<br>
+struct device {<br>
+ void *softc;<br>
+ unsigned int node;<br>
+};<br>
+<br>
+typedef struct device *device_t;<br>
+<br>
+#endif /* _FREEBSD_COMPAT_DEVICE_H */<br>
diff --git a/bsps/include/rtems/freebsd-compat/resource.h b/bsps/include/rtems/freebsd-compat/resource.h<br>
new file mode 100644<br>
index 0000000000..f84fd60e21<br>
--- /dev/null<br>
+++ b/bsps/include/rtems/freebsd-compat/resource.h<br>
@@ -0,0 +1,46 @@<br>
+/* SPDX-License-Identifier: BSD-2-Clause */<br>
+<br>
+/**<br>
+ * @file<br>
+ *<br>
+ * @ingroup LIBFREEBSD<br>
+ *<br>
+ * @brief<br>
+ */<br>
+<br>
+/*<br>
+ * Copyright (C) <2020> Niteesh Babu <<a href="mailto:niteesh.gs@gmail.com" target="_blank">niteesh.gs@gmail.com</a>><br>
+ *<br>
+ * Redistribution and use in source and binary forms, with or without<br>
+ * modification, are permitted provided that the following conditions<br>
+ * are met:<br>
+ * 1. Redistributions of source code must retain the above copyright<br>
+ * notice, this list of conditions and the following disclaimer.<br>
+ * 2. Redistributions in binary form must reproduce the above copyright<br>
+ * notice, this list of conditions and the following disclaimer in the<br>
+ * documentation and/or other materials provided with the distribution.<br>
+ *<br>
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"<br>
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE<br>
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE<br>
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE<br>
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR<br>
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF<br>
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS<br>
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN<br>
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)<br>
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE<br>
+ * POSSIBILITY OF SUCH DAMAGE.<br>
+ */<br>
+<br>
+<br>
+#ifndef _FREEBSD_COMPAT_RESOURCE_H<br>
+#define _FREEBSD_COMPAT_RESOURCE_H<br>
+<br>
+#define SYS_RES_IRQ 1<br>
+#define SYS_RES_DRQ 2<br>
+#define SYS_RES_MEMORY 3<br>
+#define SYS_RES_IOPORT 4<br>
+#define SYS_RES_GPIO 5<br>
+<br>
+#endif /* _FREEBSD_COMPAT_RESOURCE_H */<br>
diff --git a/bsps/include/rtems/freebsd-compat/rman.h b/bsps/include/rtems/freebsd-compat/rman.h<br>
new file mode 100644<br>
index 0000000000..cf359789e6<br>
--- /dev/null<br>
+++ b/bsps/include/rtems/freebsd-compat/rman.h<br>
@@ -0,0 +1,65 @@<br>
+<br>
+/* SPDX-License-Identifier: BSD-2-Clause */<br>
+<br>
+/**<br>
+ * @file<br>
+ *<br>
+ * @ingroup FreeBSDCompat<br>
+ *<br>
+ * @brief<br>
+ */<br>
+<br>
+/*<br>
+ * Copyright (C) <2020> Niteesh Babu <<a href="mailto:niteesh.gs@gmail.com" target="_blank">niteesh.gs@gmail.com</a>><br>
+ *<br>
+ * Redistribution and use in source and binary forms, with or without<br>
+ * modification, are permitted provided that the following conditions<br>
+ * are met:<br>
+ * 1. Redistributions of source code must retain the above copyright<br>
+ * notice, this list of conditions and the following disclaimer.<br>
+ * 2. Redistributions in binary form must reproduce the above copyright<br>
+ * notice, this list of conditions and the following disclaimer in the<br>
+ * documentation and/or other materials provided with the distribution.<br>
+ *<br>
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"<br>
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE<br>
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE<br>
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE<br>
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR<br>
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF<br>
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS<br>
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN<br>
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)<br>
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE<br>
+ * POSSIBILITY OF SUCH DAMAGE.<br>
+ */<br>
+<br>
+#ifndef _FREEBSD_COMPAT_RMAN_H<br>
+#define _FREEBSD_COMPAT_RMAN_H<br>
+<br>
+#include <stdint.h><br>
+<br>
+typedef uint32_t bus_size_t;<br>
+<br>
+/*<br>
+ * Access methods for bus resources and address space.<br>
+ */<br>
+typedef int bus_space_tag_t;<br>
+typedef uintptr_t bus_space_handle_t;<br>
+<br>
+#define RF_ALLOCATED 0x0001 /* resource has been reserved */<br>
+#define RF_ACTIVE 0x0002 /* resource allocation has been activated */<br>
+#define RF_SHAREABLE 0x0004 /* resource permits contemporaneous sharing */<br>
+#define RF_SPARE1 0x0008<br>
+#define RF_SPARE2 0x0010<br>
+#define RF_FIRSTSHARE 0x0020 /* first in sharing list */<br>
+#define RF_PREFETCHABLE 0x0040 /* resource is prefetchable */<br>
+#define RF_OPTIONAL 0x0080 /* for bus_alloc_resources() */<br>
+#define RF_UNMAPPED 0x0100 /* don't map resource when activating */<br>
+<br>
+struct resource {<br>
+ bus_space_tag_t r_bustag;<br>
+ bus_space_handle_t r_bushandle;/* bus_space handle */<br>
+};<br>
+<br>
+#endif /* _FREEBSD_COMPAT_RMAN_H */<br>
diff --git a/bsps/shared/rtems/freebsd-compat/bus.c b/bsps/shared/rtems/freebsd-compat/bus.c<br>
new file mode 100644<br>
index 0000000000..7ce91b80e6<br>
--- /dev/null<br>
+++ b/bsps/shared/rtems/freebsd-compat/bus.c<br>
@@ -0,0 +1,119 @@<br>
+/* SPDX-License-Identifier: BSD-2-Clause */<br>
+<br>
+/**<br>
+ * @file<br>
+ *<br>
+ * @ingroup LIBFREEBSD<br>
+ *<br>
+ * @brief<br>
+ */<br>
+<br>
+/*<br>
+ * Copyright (C) <2020> Niteesh Babu <<a href="mailto:niteesh.gs@gmail.com" target="_blank">niteesh.gs@gmail.com</a>><br>
+ *<br>
+ * Redistribution and use in source and binary forms, with or without<br>
+ * modification, are permitted provided that the following conditions<br>
+ * are met:<br>
+ * 1. Redistributions of source code must retain the above copyright<br>
+ * notice, this list of conditions and the following disclaimer.<br>
+ * 2. Redistributions in binary form must reproduce the above copyright<br>
+ * notice, this list of conditions and the following disclaimer in the<br>
+ * documentation and/or other materials provided with the distribution.<br>
+ *<br>
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"<br>
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE<br>
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE<br>
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE<br>
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR<br>
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF<br>
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS<br>
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN<br>
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)<br>
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE<br>
+ * POSSIBILITY OF SUCH DAMAGE.<br>
+ */<br>
+<br>
+#include <rtems/bspIo.h><br>
+#include <libfdt.h><br>
+#include <stdlib.h><br>
+#include <string.h><br>
+#include <assert.h><br>
+#include <errno.h><br>
+#include <ofw/ofw.h><br>
+#include <rtems/freebsd-compat/bus.h><br>
+#include <rtems/freebsd-compat/resource.h><br>
+<br>
+typedef unsigned int u_int;<br>
+<br>
+/**<br>
+ * @brief Return the device's softc field<br>
+ *<br>
+ * The softc is allocated and zeroed when a driver is attached, based<br>
+ * on the size field of the driver.<br>
+ */<br>
+void *<br>
+device_get_softc(device_t dev)<br>
+{<br>
+<br>
+ return (dev->softc);<br>
+}<br>
+<br>
+bus_space_handle_t<br>
+rman_get_bushandle(struct resource *r)<br>
+{<br>
+<br>
+ return (r->r_bushandle);<br>
+}<br>
+<br>
+bus_space_tag_t<br>
+rman_get_bustag(struct resource *r)<br>
+{<br>
+<br>
+ return (r->r_bustag);<br>
+}<br>
+<br>
+int<br>
+bus_alloc_resources(device_t dev, struct resource_spec *rs,<br>
+ struct resource **res)<br>
+{<br>
+ int i;<br>
+<br>
+ for (i = 0; rs[i].type != -1; i++) {<br>
+ res[i] = bus_alloc_resource_any(dev,<br>
+ rs[i].type, &rs[i].rid, rs[i].flags);<br>
+<br>
+ if (res[i] == NULL) {<br>
+ return (-1);<br>
+ }<br>
+ }<br>
+ return (0);<br>
+}<br>
+<br>
+struct resource *<br>
+bus_alloc_resource(device_t dev, int type, int *rid, rman_res_t start,<br>
+ rman_res_t end, rman_res_t count, u_int flags)<br>
+{<br>
+ int node;<br>
+ int rv;<br>
+ rtems_ofw_memory_area reg[*rid + 1];<br>
+ struct resource *res;<br>
+<br>
+ node = dev->node;<br>
+<br>
+ /*<br>
+ * We only support querying register values from FDT.<br>
+ */<br>
+ assert(type == SYS_RES_MEMORY);<br>
+<br>
+ res = (struct resource *)malloc(sizeof(struct resource));<br>
+<br>
+ if (res != NULL) {<br>
+ rv = rtems_ofw_get_reg(node, ®[0], sizeof(reg));<br>
+ if (rv == -1) {<br>
+ return NULL;<br>
+ }<br>
+ res->r_bushandle = reg[*rid].start;<br>
+ }<br>
+<br>
+ return (res);<br>
+}<br>
diff --git a/spec/build/bsps/obj.yml b/spec/build/bsps/obj.yml<br>
index 0ea07fc83d..7cf12cd27a 100644<br>
--- a/spec/build/bsps/obj.yml<br>
+++ b/spec/build/bsps/obj.yml<br>
@@ -109,4 +109,5 @@ source:<br>
- bsps/shared/start/bootcard.c<br>
- bsps/shared/rtems-version.c<br>
- bsps/shared/ofw/ofw.c<br>
+- bsps/shared/rtems/freebsd-compat/bus.c<br>
type: build<br>
-- <br>
2.17.1<br>
<br>
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</blockquote></div>
</blockquote></div></div>
</div>