diff options
Diffstat (limited to 'sys/arm/xscale/pxa/pxa_space.c')
| -rw-r--r-- | sys/arm/xscale/pxa/pxa_space.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/sys/arm/xscale/pxa/pxa_space.c b/sys/arm/xscale/pxa/pxa_space.c new file mode 100644 index 000000000000..26c8d576cecc --- /dev/null +++ b/sys/arm/xscale/pxa/pxa_space.c @@ -0,0 +1,265 @@ +/* $NetBSD: obio_space.c,v 1.6 2003/07/15 00:25:05 lukem Exp $ */ + +/*- + * Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc. + * All rights reserved. + * + * Written by Jason R. Thorpe for Wasabi Systems, Inc. + * + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed for the NetBSD Project by + * Wasabi Systems, Inc. + * 4. The name of Wasabi Systems, Inc. may not be used to endorse + * or promote products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC + * 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. + */ + +/* + * bus_space functions for PXA devices + */ + +#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> + +#include <arm/xscale/pxa/pxareg.h> +#include <arm/xscale/pxa/pxavar.h> + +static MALLOC_DEFINE(M_PXATAG, "PXA bus_space tags", "Bus_space tags for PXA"); + +/* Prototypes for all the bus_space structure functions */ +bs_protos(generic); +bs_protos(pxa); + +/* + * The obio bus space tag. This is constant for all instances, so + * we never have to explicitly "create" it. + */ +struct bus_space _base_tag = { + /* cookie */ + .bs_privdata = NULL, + + /* 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 = pxa_bs_r_1, + .bs_r_2 = pxa_bs_r_2, + .bs_r_4 = pxa_bs_r_4, + .bs_r_8 = BS_UNIMPLEMENTED, + + /* read multiple */ + .bs_rm_1 = pxa_bs_rm_1, + .bs_rm_2 = pxa_bs_rm_2, + .bs_rm_4 = BS_UNIMPLEMENTED, + .bs_rm_8 = BS_UNIMPLEMENTED, + + /* read region */ + .bs_rr_1 = pxa_bs_rr_1, + .bs_rr_2 = BS_UNIMPLEMENTED, + .bs_rr_4 = BS_UNIMPLEMENTED, + .bs_rr_8 = BS_UNIMPLEMENTED, + + /* write (single) */ + .bs_w_1 = pxa_bs_w_1, + .bs_w_2 = pxa_bs_w_2, + .bs_w_4 = pxa_bs_w_4, + .bs_w_8 = BS_UNIMPLEMENTED, + + /* write multiple */ + .bs_wm_1 = pxa_bs_wm_1, + .bs_wm_2 = pxa_bs_wm_2, + .bs_wm_4 = BS_UNIMPLEMENTED, + .bs_wm_8 = BS_UNIMPLEMENTED, + + /* write region */ + .bs_wr_1 = BS_UNIMPLEMENTED, + .bs_wr_2 = BS_UNIMPLEMENTED, + .bs_wr_4 = BS_UNIMPLEMENTED, + .bs_wr_8 = BS_UNIMPLEMENTED, + + /* set multiple */ + .bs_sm_1 = BS_UNIMPLEMENTED, + .bs_sm_2 = BS_UNIMPLEMENTED, + .bs_sm_4 = BS_UNIMPLEMENTED, + .bs_sm_8 = BS_UNIMPLEMENTED, + + /* set region */ + .bs_sr_1 = BS_UNIMPLEMENTED, + .bs_sr_2 = BS_UNIMPLEMENTED, + .bs_sr_4 = BS_UNIMPLEMENTED, + .bs_sr_8 = BS_UNIMPLEMENTED, + + /* copy */ + .bs_c_1 = BS_UNIMPLEMENTED, + .bs_c_2 = BS_UNIMPLEMENTED, + .bs_c_4 = BS_UNIMPLEMENTED, + .bs_c_8 = BS_UNIMPLEMENTED, + + /* read stream (single) */ + .bs_r_1_s = BS_UNIMPLEMENTED, + .bs_r_2_s = BS_UNIMPLEMENTED, + .bs_r_4_s = BS_UNIMPLEMENTED, + .bs_r_8_s = BS_UNIMPLEMENTED, + + /* read multiple stream */ + .bs_rm_1_s = BS_UNIMPLEMENTED, + .bs_rm_2_s = BS_UNIMPLEMENTED, + .bs_rm_4_s = BS_UNIMPLEMENTED, + .bs_rm_8_s = BS_UNIMPLEMENTED, + + /* read region stream */ + .bs_rr_1_s = BS_UNIMPLEMENTED, + .bs_rr_2_s = BS_UNIMPLEMENTED, + .bs_rr_4_s = BS_UNIMPLEMENTED, + .bs_rr_8_s = BS_UNIMPLEMENTED, + + /* write stream (single) */ + .bs_w_1_s = BS_UNIMPLEMENTED, + .bs_w_2_s = BS_UNIMPLEMENTED, + .bs_w_4_s = BS_UNIMPLEMENTED, + .bs_w_8_s = BS_UNIMPLEMENTED, + + /* write multiple stream */ + .bs_wm_1_s = BS_UNIMPLEMENTED, + .bs_wm_2_s = BS_UNIMPLEMENTED, + .bs_wm_4_s = BS_UNIMPLEMENTED, + .bs_wm_8_s = BS_UNIMPLEMENTED, + + /* write region stream */ + .bs_wr_1_s = BS_UNIMPLEMENTED, + .bs_wr_2_s = BS_UNIMPLEMENTED, + .bs_wr_4_s = BS_UNIMPLEMENTED, + .bs_wr_8_s = BS_UNIMPLEMENTED, +}; + +static struct bus_space _obio_tag; + +bus_space_tag_t base_tag = &_base_tag; +bus_space_tag_t obio_tag = NULL; + +void +pxa_obio_tag_init(void) +{ + + bcopy(&_base_tag, &_obio_tag, sizeof(struct bus_space)); + _obio_tag.bs_privdata = (void *)PXA2X0_PERIPH_OFFSET; + obio_tag = &_obio_tag; +} + +bus_space_tag_t +pxa_bus_tag_alloc(bus_addr_t offset) +{ + struct bus_space *tag; + + tag = (struct bus_space *)malloc(sizeof(struct bus_space), M_PXATAG, + M_WAITOK); + + bcopy(&_base_tag, tag, sizeof(struct bus_space)); + tag->bs_privdata = (void *)offset; + + return ((bus_space_tag_t)tag); +} + + +#define READ_SINGLE(type, proto, base) \ + type \ + proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset) \ + { \ + bus_addr_t tag_offset; \ + type value; \ + tag_offset = (bus_addr_t)tag->bs_privdata; \ + value = base(NULL, bsh + tag_offset, offset); \ + return (value); \ + } + +READ_SINGLE(u_int8_t, pxa_bs_r_1, generic_bs_r_1) +READ_SINGLE(u_int16_t, pxa_bs_r_2, generic_bs_r_2) +READ_SINGLE(u_int32_t, pxa_bs_r_4, generic_bs_r_4) + +#undef READ_SINGLE + +#define WRITE_SINGLE(type, proto, base) \ + void \ + proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, \ + type value) \ + { \ + bus_addr_t tag_offset; \ + tag_offset = (bus_addr_t)tag->bs_privdata; \ + base(NULL, bsh + tag_offset, offset, value); \ + } + +WRITE_SINGLE(u_int8_t, pxa_bs_w_1, generic_bs_w_1) +WRITE_SINGLE(u_int16_t, pxa_bs_w_2, generic_bs_w_2) +WRITE_SINGLE(u_int32_t, pxa_bs_w_4, generic_bs_w_4) + +#undef WRITE_SINGLE + +#define READ_MULTI(type, proto, base) \ + void \ + proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, \ + type *dest, bus_size_t count) \ + { \ + bus_addr_t tag_offset; \ + tag_offset = (bus_addr_t)tag->bs_privdata; \ + base(NULL, bsh + tag_offset, offset, dest, count); \ + } + +READ_MULTI(u_int8_t, pxa_bs_rm_1, generic_bs_rm_1) +READ_MULTI(u_int16_t, pxa_bs_rm_2, generic_bs_rm_2) + +READ_MULTI(u_int8_t, pxa_bs_rr_1, generic_bs_rr_1) + +#undef READ_MULTI + +#define WRITE_MULTI(type, proto, base) \ + void \ + proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, \ + const type *src, bus_size_t count) \ + { \ + bus_addr_t tag_offset; \ + tag_offset = (bus_addr_t)tag->bs_privdata; \ + base(NULL, bsh + tag_offset, offset, src, count); \ + } + +WRITE_MULTI(u_int8_t, pxa_bs_wm_1, generic_bs_wm_1) +WRITE_MULTI(u_int16_t, pxa_bs_wm_2, generic_bs_wm_2) + +#undef WRITE_MULTI |