freebsd-dev/sys/arm/broadcom/bcm2835/bus_space.c
Oleksandr Tymoshenko 1b1a53cf46 Add barebone Raspberry Pi port. Supported parts:
- Interrupts controller
  - Watchdog
  - System timer
  - Framebuffer (hardcoded resolution/bpp)
2012-08-30 20:59:37 +00:00

114 lines
3.2 KiB
C

/*-
* Copyright (C) 2012 FreeBSD Foundation
* 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.
* 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.
* 3. Neither the name of MARVELL nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY 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 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/bus.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <machine/bus.h>
/* Prototypes for all the bus_space structure functions */
bs_protos(generic);
bs_protos(generic_armv4);
struct bus_space _base_tag = {
/* cookie */
.bs_cookie = (void *) 0,
/* mapping/unmapping */
.bs_map = generic_bs_map,
.bs_unmap = generic_bs_unmap,
.bs_subregion = generic_bs_subregion,
/* allocation/deallocation */
.bs_alloc = generic_bs_alloc,
.bs_free = generic_bs_free,
/* barrier */
.bs_barrier = generic_bs_barrier,
/* read (single) */
.bs_r_1 = generic_bs_r_1,
.bs_r_2 = generic_armv4_bs_r_2,
.bs_r_4 = generic_bs_r_4,
.bs_r_8 = NULL,
/* read multiple */
.bs_rm_1 = generic_bs_rm_1,
.bs_rm_2 = generic_armv4_bs_rm_2,
.bs_rm_4 = generic_bs_rm_4,
.bs_rm_8 = NULL,
/* read region */
.bs_rr_1 = generic_bs_rr_1,
.bs_rr_2 = generic_armv4_bs_rr_2,
.bs_rr_4 = generic_bs_rr_4,
.bs_rr_8 = NULL,
/* write (single) */
.bs_w_1 = generic_bs_w_1,
.bs_w_2 = generic_armv4_bs_w_2,
.bs_w_4 = generic_bs_w_4,
.bs_w_8 = NULL,
/* write multiple */
.bs_wm_1 = generic_bs_wm_1,
.bs_wm_2 = generic_armv4_bs_wm_2,
.bs_wm_4 = generic_bs_wm_4,
.bs_wm_8 = NULL,
/* write region */
.bs_wr_1 = generic_bs_wr_1,
.bs_wr_2 = generic_armv4_bs_wr_2,
.bs_wr_4 = generic_bs_wr_4,
.bs_wr_8 = NULL,
/* set multiple */
/* XXX not implemented */
/* set region */
.bs_sr_1 = NULL,
.bs_sr_2 = generic_armv4_bs_sr_2,
.bs_sr_4 = generic_bs_sr_4,
.bs_sr_8 = NULL,
/* copy */
.bs_c_1 = NULL,
.bs_c_2 = generic_armv4_bs_c_2,
.bs_c_4 = NULL,
.bs_c_8 = NULL,
};
bus_space_tag_t fdtbus_bs_tag = &_base_tag;