i80321_space.c revision 151524
1135669Scognet/* $NetBSD: i80321_space.c,v 1.6 2003/10/06 15:43:35 thorpej Exp $ */ 2135669Scognet 3139735Simp/*- 4135669Scognet * Copyright (c) 2001, 2002 Wasabi Systems, Inc. 5135669Scognet * All rights reserved. 6135669Scognet * 7135669Scognet * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8135669Scognet * 9135669Scognet * Redistribution and use in source and binary forms, with or without 10135669Scognet * modification, are permitted provided that the following conditions 11135669Scognet * are met: 12135669Scognet * 1. Redistributions of source code must retain the above copyright 13135669Scognet * notice, this list of conditions and the following disclaimer. 14135669Scognet * 2. Redistributions in binary form must reproduce the above copyright 15135669Scognet * notice, this list of conditions and the following disclaimer in the 16135669Scognet * documentation and/or other materials provided with the distribution. 17135669Scognet * 3. All advertising materials mentioning features or use of this software 18135669Scognet * must display the following acknowledgement: 19135669Scognet * This product includes software developed for the NetBSD Project by 20135669Scognet * Wasabi Systems, Inc. 21135669Scognet * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22135669Scognet * or promote products derived from this software without specific prior 23135669Scognet * written permission. 24135669Scognet * 25135669Scognet * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26135669Scognet * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27135669Scognet * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28135669Scognet * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29135669Scognet * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30135669Scognet * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31135669Scognet * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32135669Scognet * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33135669Scognet * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34135669Scognet * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35135669Scognet * POSSIBILITY OF SUCH DAMAGE. 36135669Scognet */ 37135669Scognet 38135669Scognet/* 39135669Scognet * bus_space functions for i80321 I/O Processor. 40135669Scognet */ 41135669Scognet 42135669Scognet#include <sys/cdefs.h> 43135669Scognet__FBSDID("$FreeBSD: head/sys/arm/xscale/i80321/i80321_space.c 151524 2005-10-20 20:30:51Z cognet $"); 44135669Scognet 45135669Scognet#include <sys/param.h> 46135669Scognet#include <sys/systm.h> 47135669Scognet#include <sys/bus.h> 48135669Scognet 49135669Scognet#include <machine/pcb.h> 50135669Scognet 51135669Scognet#include <vm/vm.h> 52135669Scognet#include <vm/vm_kern.h> 53135669Scognet#include <vm/pmap.h> 54135669Scognet#include <vm/vm_page.h> 55135669Scognet#include <vm/vm_extern.h> 56135669Scognet 57135669Scognet#include <machine/bus.h> 58135669Scognet 59135669Scognet#include <arm/xscale/i80321/i80321reg.h> 60135669Scognet#include <arm/xscale/i80321/i80321var.h> 61135669Scognet 62135669Scognet/* Prototypes for all the bus_space structure functions */ 63135669Scognetbs_protos(i80321); 64135669Scognetbs_protos(i80321_io); 65135669Scognetbs_protos(i80321_mem); 66135669Scognetbs_protos(generic); 67135669Scognetbs_protos(generic_armv4); 68135669Scognet 69135669Scognet/* 70135669Scognet * Template bus_space -- copied, and the bits that are NULL are 71135669Scognet * filled in. 72135669Scognet */ 73135669Scognetconst struct bus_space i80321_bs_tag_template = { 74135669Scognet /* cookie */ 75135669Scognet (void *) 0, 76135669Scognet 77135669Scognet /* mapping/unmapping */ 78135669Scognet NULL, 79135669Scognet NULL, 80135669Scognet i80321_bs_subregion, 81135669Scognet 82135669Scognet /* allocation/deallocation */ 83135669Scognet NULL, 84135669Scognet NULL, 85135669Scognet 86135669Scognet /* barrier */ 87135669Scognet i80321_bs_barrier, 88135669Scognet 89135669Scognet /* read (single) */ 90135669Scognet generic_bs_r_1, 91135669Scognet generic_armv4_bs_r_2, 92135669Scognet generic_bs_r_4, 93135669Scognet NULL, 94135669Scognet 95135669Scognet /* read multiple */ 96135669Scognet generic_bs_rm_1, 97135669Scognet generic_armv4_bs_rm_2, 98135669Scognet generic_bs_rm_4, 99135669Scognet NULL, 100135669Scognet 101135669Scognet /* read region */ 102135669Scognet NULL, 103135669Scognet generic_armv4_bs_rr_2, 104135669Scognet generic_bs_rr_4, 105135669Scognet NULL, 106135669Scognet 107135669Scognet /* write (single) */ 108135669Scognet generic_bs_w_1, 109135669Scognet generic_armv4_bs_w_2, 110135669Scognet generic_bs_w_4, 111135669Scognet NULL, 112135669Scognet 113135669Scognet /* write multiple */ 114135669Scognet generic_bs_wm_1, 115135669Scognet generic_armv4_bs_wm_2, 116135669Scognet generic_bs_wm_4, 117135669Scognet NULL, 118135669Scognet 119135669Scognet /* write region */ 120135669Scognet NULL, 121135669Scognet generic_armv4_bs_wr_2, 122135669Scognet generic_bs_wr_4, 123135669Scognet NULL, 124135669Scognet 125135669Scognet /* set multiple */ 126135669Scognet NULL, 127135669Scognet NULL, 128135669Scognet NULL, 129135669Scognet NULL, 130135669Scognet 131135669Scognet /* set region */ 132135669Scognet NULL, 133135669Scognet generic_armv4_bs_sr_2, 134135669Scognet generic_bs_sr_4, 135135669Scognet NULL, 136135669Scognet 137135669Scognet /* copy */ 138135669Scognet NULL, 139135669Scognet generic_armv4_bs_c_2, 140135669Scognet NULL, 141135669Scognet NULL, 142135669Scognet}; 143135669Scognet 144135669Scognetvoid 145135669Scogneti80321_bs_init(bus_space_tag_t bs, void *cookie) 146135669Scognet{ 147135669Scognet 148135669Scognet *bs = i80321_bs_tag_template; 149135669Scognet bs->bs_cookie = cookie; 150135669Scognet} 151135669Scognet 152135669Scognetvoid 153135669Scogneti80321_io_bs_init(bus_space_tag_t bs, void *cookie) 154135669Scognet{ 155135669Scognet 156135669Scognet *bs = i80321_bs_tag_template; 157135669Scognet bs->bs_cookie = cookie; 158135669Scognet 159135669Scognet bs->bs_map = i80321_io_bs_map; 160135669Scognet bs->bs_unmap = i80321_io_bs_unmap; 161135669Scognet bs->bs_alloc = i80321_io_bs_alloc; 162135669Scognet bs->bs_free = i80321_io_bs_free; 163135669Scognet 164135669Scognet} 165135669Scognet 166135669Scognetvoid 167135669Scogneti80321_mem_bs_init(bus_space_tag_t bs, void *cookie) 168135669Scognet{ 169135669Scognet 170135669Scognet *bs = i80321_bs_tag_template; 171135669Scognet bs->bs_cookie = cookie; 172135669Scognet 173135669Scognet bs->bs_map = i80321_mem_bs_map; 174135669Scognet bs->bs_unmap = i80321_mem_bs_unmap; 175135669Scognet bs->bs_alloc = i80321_mem_bs_alloc; 176135669Scognet bs->bs_free = i80321_mem_bs_free; 177135669Scognet 178135669Scognet} 179135669Scognet 180135669Scognet/* *** Routines shared by i80321, PCI IO, and PCI MEM. *** */ 181135669Scognet 182135669Scognetint 183135669Scogneti80321_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset, 184135669Scognet bus_size_t size, bus_space_handle_t *nbshp) 185135669Scognet{ 186135669Scognet 187135669Scognet *nbshp = bsh + offset; 188135669Scognet return (0); 189135669Scognet} 190135669Scognet 191135669Scognetvoid 192135669Scogneti80321_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset, 193135669Scognet bus_size_t len, int flags) 194135669Scognet{ 195135669Scognet 196135669Scognet /* Nothing to do. */ 197135669Scognet} 198135669Scognet 199135669Scognet/* *** Routines for PCI IO. *** */ 200135669Scognet 201135669Scognetextern struct i80321_softc *i80321_softc; 202135669Scognetint 203135669Scogneti80321_io_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, 204135669Scognet bus_space_handle_t *bshp) 205135669Scognet{ 206135669Scognet struct i80321_softc *sc = i80321_softc; 207135669Scognet vm_offset_t winvaddr; 208135669Scognet uint32_t busbase; 209135669Scognet 210135669Scognet if (bpa >= sc->sc_ioout_xlate && 211135669Scognet bpa < (sc->sc_ioout_xlate + VERDE_OUT_XLATE_IO_WIN_SIZE)) { 212135669Scognet busbase = sc->sc_ioout_xlate; 213135669Scognet winvaddr = sc->sc_iow_vaddr; 214135669Scognet } else 215135669Scognet return (EINVAL); 216135669Scognet 217135669Scognet if ((bpa + size) >= (busbase + VERDE_OUT_XLATE_IO_WIN_SIZE)) 218135669Scognet return (EINVAL); 219135669Scognet 220135669Scognet /* 221135669Scognet * Found the window -- PCI I/O space is mapped at a fixed 222135669Scognet * virtual address by board-specific code. Translate the 223135669Scognet * bus address to the virtual address. 224135669Scognet */ 225135669Scognet *bshp = winvaddr + (bpa - busbase); 226135669Scognet 227135669Scognet return (0); 228135669Scognet} 229135669Scognet 230135669Scognetvoid 231135669Scogneti80321_io_bs_unmap(void *t, bus_size_t size) 232135669Scognet{ 233135669Scognet 234135669Scognet /* Nothing to do. */ 235135669Scognet} 236135669Scognet 237135669Scognetint 238135669Scogneti80321_io_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend, 239135669Scognet bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, 240135669Scognet bus_addr_t *bpap, bus_space_handle_t *bshp) 241135669Scognet{ 242135669Scognet 243135669Scognet panic("i80321_io_bs_alloc(): not implemented"); 244135669Scognet} 245135669Scognet 246135669Scognetvoid 247135669Scogneti80321_io_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size) 248135669Scognet{ 249135669Scognet 250135669Scognet panic("i80321_io_bs_free(): not implemented"); 251135669Scognet} 252135669Scognet 253135669Scognet 254135669Scognet/* *** Routines for PCI MEM. *** */ 255135669Scognetextern int badaddr_read(void *, int, void *); 256135669Scognetint 257135669Scogneti80321_mem_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, 258135669Scognet bus_space_handle_t *bshp) 259135669Scognet{ 260151524Scognet vm_paddr_t pa, endpa; 261135669Scognet 262135669Scognet pa = trunc_page(bpa); 263135669Scognet endpa = round_page(bpa + size); 264135669Scognet 265135669Scognet *bshp = (vm_offset_t)pmap_mapdev(pa, endpa - pa); 266135669Scognet 267135669Scognet return (0); 268135669Scognet} 269135669Scognet 270135669Scognetvoid 271135669Scogneti80321_mem_bs_unmap(void *t, bus_size_t size) 272135669Scognet{ 273135669Scognet vm_offset_t va, endva; 274135669Scognet 275135669Scognet va = trunc_page((vm_offset_t)t); 276135669Scognet endva = va + round_page(size); 277135669Scognet 278135669Scognet /* Free the kernel virtual mapping. */ 279135669Scognet kmem_free(kernel_map, va, endva - va); 280135669Scognet} 281135669Scognet 282135669Scognetint 283135669Scogneti80321_mem_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend, 284135669Scognet bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, 285135669Scognet bus_addr_t *bpap, bus_space_handle_t *bshp) 286135669Scognet{ 287135669Scognet 288135669Scognet panic("i80321_mem_bs_alloc(): not implemented"); 289135669Scognet} 290135669Scognet 291135669Scognetvoid 292135669Scogneti80321_mem_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size) 293135669Scognet{ 294135669Scognet 295135669Scognet panic("i80321_mem_bs_free(): not implemented"); 296135669Scognet} 297