1#- 2# Copyright (c) 2017 Andrew Turner 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions 7# are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24# SUCH DAMAGE. 25# 26# 27 28#include <sys/bus.h> 29#include <sys/lock.h> 30#include <sys/mutex.h> 31#include <sys/rman.h> 32 33#include <machine/bus.h> 34#include <machine/pl310.h> 35#include <machine/platformvar.h> 36 37INTERFACE platform_pl310; 38 39HEADER { 40 struct pl310_softc; 41}; 42 43CODE { 44 static void platform_pl310_default_write_ctrl(platform_t plat, 45 struct pl310_softc *sc, uint32_t val) 46 { 47 pl310_write4(sc, PL310_CTRL, val); 48 } 49 50 static void platform_pl310_default_write_debug(platform_t plat, 51 struct pl310_softc *sc, uint32_t val) 52 { 53 pl310_write4(sc, PL310_DEBUG_CTRL, val); 54 } 55}; 56 57/** 58 * Initialize the pl310, e.g. to configure the prefetch control. The following 59 * write functions may have already been called so they must not rely on 60 * this function. 61 */ 62METHOD void init { 63 platform_t _plat; 64 struct pl310_softc *sc; 65}; 66 67/** 68 * Write to the Control Register. 69 */ 70METHOD void write_ctrl { 71 platform_t _plat; 72 struct pl310_softc *sc; 73 uint32_t val; 74} DEFAULT platform_pl310_default_write_ctrl; 75 76/** 77 * Write to the Debug Control Register. 78 */ 79METHOD void write_debug { 80 platform_t _plat; 81 struct pl310_softc *sc; 82 uint32_t val; 83} DEFAULT platform_pl310_default_write_debug; 84