773 lines
17 KiB
C
773 lines
17 KiB
C
/*
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* Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* NETLOGIC_BSD */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/endian.h>
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#include <sys/malloc.h>
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#include <sys/ktr.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <vm/vm_kern.h>
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#include <vm/vm_extern.h>
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#include <machine/bus.h>
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#include <machine/cache.h>
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static int
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rmi_bus_space_map(void *t, bus_addr_t addr,
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bus_size_t size, int flags,
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bus_space_handle_t *bshp);
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static void
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rmi_bus_space_unmap(void *t, bus_space_handle_t bsh,
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bus_size_t size);
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static int
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rmi_bus_space_subregion(void *t,
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bus_space_handle_t bsh,
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bus_size_t offset, bus_size_t size,
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bus_space_handle_t *nbshp);
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static u_int8_t
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rmi_bus_space_read_1(void *t,
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bus_space_handle_t handle,
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bus_size_t offset);
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static u_int16_t
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rmi_bus_space_read_2(void *t,
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bus_space_handle_t handle,
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bus_size_t offset);
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static u_int32_t
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rmi_bus_space_read_4(void *t,
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bus_space_handle_t handle,
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bus_size_t offset);
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static void
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rmi_bus_space_read_multi_1(void *t,
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bus_space_handle_t handle,
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bus_size_t offset, u_int8_t *addr,
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size_t count);
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static void
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rmi_bus_space_read_multi_2(void *t,
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bus_space_handle_t handle,
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bus_size_t offset, u_int16_t *addr,
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size_t count);
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static void
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rmi_bus_space_read_multi_4(void *t,
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bus_space_handle_t handle,
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bus_size_t offset, u_int32_t *addr,
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size_t count);
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static void
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rmi_bus_space_read_region_1(void *t,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int8_t *addr,
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size_t count);
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static void
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rmi_bus_space_read_region_2(void *t,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int16_t *addr,
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size_t count);
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static void
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rmi_bus_space_read_region_4(void *t,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int32_t *addr,
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size_t count);
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static void
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rmi_bus_space_write_1(void *t,
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bus_space_handle_t handle,
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bus_size_t offset, u_int8_t value);
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static void
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rmi_bus_space_write_2(void *t,
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bus_space_handle_t handle,
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bus_size_t offset, u_int16_t value);
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static void
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rmi_bus_space_write_4(void *t,
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bus_space_handle_t handle,
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bus_size_t offset, u_int32_t value);
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static void
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rmi_bus_space_write_multi_1(void *t,
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bus_space_handle_t handle,
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bus_size_t offset,
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const u_int8_t *addr,
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size_t count);
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static void
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rmi_bus_space_write_multi_2(void *t,
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bus_space_handle_t handle,
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bus_size_t offset,
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const u_int16_t *addr,
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size_t count);
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static void
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rmi_bus_space_write_multi_4(void *t,
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bus_space_handle_t handle,
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bus_size_t offset,
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const u_int32_t *addr,
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size_t count);
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static void
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rmi_bus_space_write_region_2(void *t,
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bus_space_handle_t bsh,
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bus_size_t offset,
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const u_int16_t *addr,
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size_t count);
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static void
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rmi_bus_space_write_region_4(void *t,
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bus_space_handle_t bsh,
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bus_size_t offset,
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const u_int32_t *addr,
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size_t count);
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static void
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rmi_bus_space_set_region_2(void *t,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int16_t value,
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size_t count);
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static void
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rmi_bus_space_set_region_4(void *t,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int32_t value,
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size_t count);
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static void
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rmi_bus_space_barrier(void *tag __unused, bus_space_handle_t bsh __unused,
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bus_size_t offset __unused, bus_size_t len __unused, int flags);
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static void
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rmi_bus_space_copy_region_2(void *t,
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bus_space_handle_t bsh1,
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bus_size_t off1,
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bus_space_handle_t bsh2,
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bus_size_t off2, size_t count);
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u_int8_t
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rmi_bus_space_read_stream_1(void *t, bus_space_handle_t handle,
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bus_size_t offset);
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static u_int16_t
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rmi_bus_space_read_stream_2(void *t, bus_space_handle_t handle,
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bus_size_t offset);
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static u_int32_t
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rmi_bus_space_read_stream_4(void *t, bus_space_handle_t handle,
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bus_size_t offset);
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static void
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rmi_bus_space_read_multi_stream_1(void *t,
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bus_space_handle_t handle,
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bus_size_t offset, u_int8_t *addr,
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size_t count);
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static void
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rmi_bus_space_read_multi_stream_2(void *t,
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bus_space_handle_t handle,
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bus_size_t offset, u_int16_t *addr,
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size_t count);
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static void
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rmi_bus_space_read_multi_stream_4(void *t,
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bus_space_handle_t handle,
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bus_size_t offset, u_int32_t *addr,
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size_t count);
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void
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rmi_bus_space_write_stream_1(void *t, bus_space_handle_t bsh,
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bus_size_t offset, u_int8_t value);
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static void
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rmi_bus_space_write_stream_2(void *t, bus_space_handle_t handle,
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bus_size_t offset, u_int16_t value);
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static void
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rmi_bus_space_write_stream_4(void *t, bus_space_handle_t handle,
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bus_size_t offset, u_int32_t value);
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static void
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rmi_bus_space_write_multi_stream_1(void *t,
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bus_space_handle_t handle,
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bus_size_t offset,
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const u_int8_t *addr,
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size_t count);
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static void
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rmi_bus_space_write_multi_stream_2(void *t,
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bus_space_handle_t handle,
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bus_size_t offset,
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const u_int16_t *addr,
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size_t count);
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static void
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rmi_bus_space_write_multi_stream_4(void *t,
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bus_space_handle_t handle,
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bus_size_t offset,
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const u_int32_t *addr,
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size_t count);
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#define TODO() printf("XLP bus space: '%s' unimplemented\n", __func__)
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static struct bus_space local_rmi_bus_space = {
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/* cookie */
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(void *)0,
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/* mapping/unmapping */
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rmi_bus_space_map,
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rmi_bus_space_unmap,
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rmi_bus_space_subregion,
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/* allocation/deallocation */
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NULL,
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NULL,
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/* barrier */
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rmi_bus_space_barrier,
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/* read (single) */
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rmi_bus_space_read_1,
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rmi_bus_space_read_2,
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rmi_bus_space_read_4,
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NULL,
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/* read multiple */
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rmi_bus_space_read_multi_1,
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rmi_bus_space_read_multi_2,
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rmi_bus_space_read_multi_4,
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NULL,
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/* read region */
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rmi_bus_space_read_region_1,
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rmi_bus_space_read_region_2,
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rmi_bus_space_read_region_4,
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NULL,
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/* write (single) */
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rmi_bus_space_write_1,
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rmi_bus_space_write_2,
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rmi_bus_space_write_4,
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NULL,
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/* write multiple */
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rmi_bus_space_write_multi_1,
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rmi_bus_space_write_multi_2,
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rmi_bus_space_write_multi_4,
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NULL,
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/* write region */
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NULL,
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rmi_bus_space_write_region_2,
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rmi_bus_space_write_region_4,
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NULL,
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/* set multiple */
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NULL,
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NULL,
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NULL,
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NULL,
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/* set region */
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NULL,
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rmi_bus_space_set_region_2,
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rmi_bus_space_set_region_4,
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NULL,
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/* copy */
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NULL,
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rmi_bus_space_copy_region_2,
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NULL,
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NULL,
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/* read (single) stream */
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rmi_bus_space_read_stream_1,
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rmi_bus_space_read_stream_2,
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rmi_bus_space_read_stream_4,
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NULL,
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/* read multiple stream */
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rmi_bus_space_read_multi_stream_1,
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rmi_bus_space_read_multi_stream_2,
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rmi_bus_space_read_multi_stream_4,
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NULL,
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/* read region stream */
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rmi_bus_space_read_region_1,
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rmi_bus_space_read_region_2,
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rmi_bus_space_read_region_4,
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NULL,
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/* write (single) stream */
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rmi_bus_space_write_stream_1,
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rmi_bus_space_write_stream_2,
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rmi_bus_space_write_stream_4,
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NULL,
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/* write multiple stream */
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rmi_bus_space_write_multi_stream_1,
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rmi_bus_space_write_multi_stream_2,
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rmi_bus_space_write_multi_stream_4,
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NULL,
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/* write region stream */
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NULL,
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rmi_bus_space_write_region_2,
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rmi_bus_space_write_region_4,
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NULL,
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};
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/* generic bus_space tag */
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bus_space_tag_t rmi_bus_space = &local_rmi_bus_space;
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/*
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* Map a region of device bus space into CPU virtual address space.
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*/
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static int
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rmi_bus_space_map(void *t __unused, bus_addr_t addr,
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bus_size_t size __unused, int flags __unused,
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bus_space_handle_t *bshp)
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{
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*bshp = MIPS_PHYS_TO_DIRECT_UNCACHED(addr);
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return (0);
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}
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/*
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* Unmap a region of device bus space.
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*/
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static void
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rmi_bus_space_unmap(void *t __unused, bus_space_handle_t bsh __unused,
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bus_size_t size __unused)
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{
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}
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/*
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* Get a new handle for a subregion of an already-mapped area of bus space.
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*/
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static int
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rmi_bus_space_subregion(void *t __unused, bus_space_handle_t bsh,
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bus_size_t offset, bus_size_t size __unused,
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bus_space_handle_t *nbshp)
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{
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*nbshp = bsh + offset;
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return (0);
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}
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/*
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* Read a 1, 2, 4, or 8 byte quantity from bus space
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* described by tag/handle/offset.
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*/
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static u_int8_t
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rmi_bus_space_read_1(void *tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
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return (u_int8_t) (*(volatile u_int8_t *)(handle + offset));
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}
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static u_int16_t
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rmi_bus_space_read_2(void *tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
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return (u_int16_t)(*(volatile u_int16_t *)(handle + offset));
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}
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static u_int32_t
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rmi_bus_space_read_4(void *tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
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return (*(volatile u_int32_t *)(handle + offset));
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}
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/*
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* Read `count' 1, 2, 4, or 8 byte quantities from bus space
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* described by tag/handle/offset and copy into buffer provided.
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*/
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static void
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rmi_bus_space_read_multi_1(void *tag, bus_space_handle_t handle,
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bus_size_t offset, u_int8_t *addr, size_t count)
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{
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TODO();
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}
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static void
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rmi_bus_space_read_multi_2(void *tag, bus_space_handle_t handle,
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bus_size_t offset, u_int16_t *addr, size_t count)
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{
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TODO();
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}
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static void
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rmi_bus_space_read_multi_4(void *tag, bus_space_handle_t handle,
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bus_size_t offset, u_int32_t *addr, size_t count)
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{
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TODO();
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}
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/*
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* Write the 1, 2, 4, or 8 byte value `value' to bus space
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* described by tag/handle/offset.
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*/
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static void
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rmi_bus_space_write_1(void *tag, bus_space_handle_t handle,
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bus_size_t offset, u_int8_t value)
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{
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*(volatile u_int8_t *)(handle + offset) = value;
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}
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static void
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rmi_bus_space_write_2(void *tag, bus_space_handle_t handle,
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bus_size_t offset, u_int16_t value)
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{
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*(volatile u_int16_t *)(handle + offset) = value;
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}
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static void
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rmi_bus_space_write_4(void *tag, bus_space_handle_t handle,
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bus_size_t offset, u_int32_t value)
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{
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*(volatile u_int32_t *)(handle + offset) = value;
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}
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/*
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* Write `count' 1, 2, 4, or 8 byte quantities from the buffer
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* provided to bus space described by tag/handle/offset.
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*/
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static void
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rmi_bus_space_write_multi_1(void *tag, bus_space_handle_t handle,
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bus_size_t offset, const u_int8_t *addr, size_t count)
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{
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TODO();
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}
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static void
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rmi_bus_space_write_multi_2(void *tag, bus_space_handle_t handle,
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bus_size_t offset, const u_int16_t *addr, size_t count)
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{
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TODO();
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}
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static void
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rmi_bus_space_write_multi_4(void *tag, bus_space_handle_t handle,
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bus_size_t offset, const u_int32_t *addr, size_t count)
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{
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TODO();
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}
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/*
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* Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
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* by tag/handle starting at `offset'.
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*/
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static void
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rmi_bus_space_set_region_2(void *t, bus_space_handle_t bsh,
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bus_size_t offset, u_int16_t value, size_t count)
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{
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bus_addr_t addr = bsh + offset;
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for (; count != 0; count--, addr += 2)
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(*(volatile u_int32_t *)(addr)) = value;
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}
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static void
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rmi_bus_space_set_region_4(void *t, bus_space_handle_t bsh,
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bus_size_t offset, u_int32_t value, size_t count)
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{
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bus_addr_t addr = bsh + offset;
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for (; count != 0; count--, addr += 4)
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(*(volatile u_int32_t *)(addr)) = value;
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}
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/*
|
|
* Copy `count' 1, 2, 4, or 8 byte values from bus space starting
|
|
* at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
|
|
*/
|
|
static void
|
|
rmi_bus_space_copy_region_2(void *t, bus_space_handle_t bsh1,
|
|
bus_size_t off1, bus_space_handle_t bsh2,
|
|
bus_size_t off2, size_t count)
|
|
{
|
|
printf("bus_space_copy_region_2 - unimplemented\n");
|
|
}
|
|
|
|
/*
|
|
* Read `count' 1, 2, 4, or 8 byte quantities from bus space
|
|
* described by tag/handle/offset and copy into buffer provided.
|
|
*/
|
|
|
|
u_int8_t
|
|
rmi_bus_space_read_stream_1(void *t, bus_space_handle_t handle,
|
|
bus_size_t offset)
|
|
{
|
|
|
|
return *((volatile u_int8_t *)(handle + offset));
|
|
}
|
|
|
|
|
|
static u_int16_t
|
|
rmi_bus_space_read_stream_2(void *t, bus_space_handle_t handle,
|
|
bus_size_t offset)
|
|
{
|
|
return *(volatile u_int16_t *)(handle + offset);
|
|
}
|
|
|
|
|
|
static u_int32_t
|
|
rmi_bus_space_read_stream_4(void *t, bus_space_handle_t handle,
|
|
bus_size_t offset)
|
|
{
|
|
return (*(volatile u_int32_t *)(handle + offset));
|
|
}
|
|
|
|
|
|
static void
|
|
rmi_bus_space_read_multi_stream_1(void *tag, bus_space_handle_t handle,
|
|
bus_size_t offset, u_int8_t *addr, size_t count)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
static void
|
|
rmi_bus_space_read_multi_stream_2(void *tag, bus_space_handle_t handle,
|
|
bus_size_t offset, u_int16_t *addr, size_t count)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
static void
|
|
rmi_bus_space_read_multi_stream_4(void *tag, bus_space_handle_t handle,
|
|
bus_size_t offset, u_int32_t *addr, size_t count)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
|
|
/*
|
|
* Read `count' 1, 2, 4, or 8 byte quantities from bus space
|
|
* described by tag/handle and starting at `offset' and copy into
|
|
* buffer provided.
|
|
*/
|
|
void
|
|
rmi_bus_space_read_region_1(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int8_t *addr, size_t count)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
void
|
|
rmi_bus_space_read_region_2(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int16_t *addr, size_t count)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
void
|
|
rmi_bus_space_read_region_4(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int32_t *addr, size_t count)
|
|
{
|
|
bus_addr_t baddr = bsh + offset;
|
|
|
|
while (count--) {
|
|
*addr++ = (*(volatile u_int32_t *)(baddr));
|
|
baddr += 4;
|
|
}
|
|
}
|
|
|
|
void
|
|
rmi_bus_space_write_stream_1(void *t, bus_space_handle_t handle,
|
|
bus_size_t offset, u_int8_t value)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
|
|
static void
|
|
rmi_bus_space_write_stream_2(void *t, bus_space_handle_t handle,
|
|
bus_size_t offset, u_int16_t value)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
|
|
static void
|
|
rmi_bus_space_write_stream_4(void *t, bus_space_handle_t handle,
|
|
bus_size_t offset, u_int32_t value)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
|
|
static void
|
|
rmi_bus_space_write_multi_stream_1(void *tag, bus_space_handle_t handle,
|
|
bus_size_t offset, const u_int8_t *addr, size_t count)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
static void
|
|
rmi_bus_space_write_multi_stream_2(void *tag, bus_space_handle_t handle,
|
|
bus_size_t offset, const u_int16_t *addr, size_t count)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
static void
|
|
rmi_bus_space_write_multi_stream_4(void *tag, bus_space_handle_t handle,
|
|
bus_size_t offset, const u_int32_t *addr, size_t count)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
void
|
|
rmi_bus_space_write_region_2(void *t,
|
|
bus_space_handle_t bsh,
|
|
bus_size_t offset,
|
|
const u_int16_t *addr,
|
|
size_t count)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
void
|
|
rmi_bus_space_write_region_4(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, const u_int32_t *addr, size_t count)
|
|
{
|
|
TODO();
|
|
}
|
|
|
|
static void
|
|
rmi_bus_space_barrier(void *tag __unused, bus_space_handle_t bsh __unused,
|
|
bus_size_t offset __unused, bus_size_t len __unused, int flags)
|
|
{
|
|
}
|
|
|
|
/*
|
|
* need a special bus space for this, because the Netlogic SoC
|
|
* UART allows only 32 bit access to its registers
|
|
*/
|
|
|
|
static u_int8_t
|
|
rmi_uart_bus_space_read_1(void *tag, bus_space_handle_t handle,
|
|
bus_size_t offset)
|
|
{
|
|
return (u_int8_t)(*(volatile u_int32_t *)(handle + offset));
|
|
}
|
|
|
|
static void
|
|
rmi_uart_bus_space_write_1(void *tag, bus_space_handle_t handle,
|
|
bus_size_t offset, u_int8_t value)
|
|
{
|
|
*(volatile u_int32_t *)(handle + offset) = value;
|
|
}
|
|
|
|
static struct bus_space local_rmi_uart_bus_space = {
|
|
/* cookie */
|
|
(void *)0,
|
|
|
|
/* mapping/unmapping */
|
|
rmi_bus_space_map,
|
|
rmi_bus_space_unmap,
|
|
rmi_bus_space_subregion,
|
|
|
|
/* allocation/deallocation */
|
|
NULL,
|
|
NULL,
|
|
|
|
/* barrier */
|
|
rmi_bus_space_barrier,
|
|
|
|
/* read (single) */
|
|
rmi_uart_bus_space_read_1, NULL, NULL, NULL,
|
|
|
|
/* read multiple */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* read region */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* write (single) */
|
|
rmi_uart_bus_space_write_1, NULL, NULL, NULL,
|
|
|
|
/* write multiple */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* write region */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* set multiple */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* set region */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* copy */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* read (single) stream */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* read multiple stream */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* read region stream */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* write (single) stream */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* write multiple stream */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
/* write region stream */
|
|
NULL, NULL, NULL, NULL,
|
|
};
|
|
|
|
/* generic bus_space tag */
|
|
bus_space_tag_t rmi_uart_bus_space = &local_rmi_uart_bus_space;
|