Date: Tue, 18 Apr 2017 10:32:21 +0000 (UTC) From: Zbigniew Bodek <zbb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r317086 - head/sys/arm/mv/armada38x Message-ID: <201704181032.v3IAWLip039599@repo.freebsd.org>
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Author: zbb Date: Tue Apr 18 10:32:21 2017 New Revision: 317086 URL: https://svnweb.freebsd.org/changeset/base/317086 Log: Add PL310 platform initialization for Armada 38x Introduce machine-dependent part of the arm/pl310 driver for Armada 38x SoCs. Add prefetch and power savings configuration. Submitted by: <arnaud.ysmal@stormshield.eu> Obtained from: Stormshield Sponsored by: Stormshield Differential revision: https://reviews.freebsd.org/D10220 Added: head/sys/arm/mv/armada38x/armada38x_pl310.c (contents, props changed) Modified: head/sys/arm/mv/armada38x/files.armada38x Added: head/sys/arm/mv/armada38x/armada38x_pl310.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm/mv/armada38x/armada38x_pl310.c Tue Apr 18 10:32:21 2017 (r317086) @@ -0,0 +1,74 @@ +/*- + * Copyright (c) 2017 Stormshield. + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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("$FreeBSD$"); + +/* + * The machine-dependent part of the arm/pl310 driver for Armada 38x SoCs. + */ + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/rman.h> +#include <sys/lock.h> +#include <sys/mutex.h> + +#include <machine/bus.h> +#include <machine/pl310.h> + +void +platform_pl310_init(struct pl310_softc *sc) +{ + uint32_t reg; + + /* + * Enable power saving modes: + * - Dynamic Gating stops the clock when the controller is idle. + */ + reg = pl310_read4(sc, PL310_POWER_CTRL); + reg |= POWER_CTRL_ENABLE_GATING; + pl310_write4(sc, PL310_POWER_CTRL, reg); + + pl310_write4(sc, PL310_PREFETCH_CTRL, PREFETCH_CTRL_DL | + PREFETCH_CTRL_DATA_PREFETCH | PREFETCH_CTRL_INCR_DL | + PREFETCH_CTRL_DL_ON_WRAP); +} + +void +platform_pl310_write_ctrl(struct pl310_softc *sc, uint32_t val) +{ + + pl310_write4(sc, PL310_CTRL, val); +} + +void +platform_pl310_write_debug(struct pl310_softc *sc, uint32_t val) +{ + + pl310_write4(sc, PL310_DEBUG_CTRL, val); +} Modified: head/sys/arm/mv/armada38x/files.armada38x ============================================================================== --- head/sys/arm/mv/armada38x/files.armada38x Tue Apr 18 10:25:59 2017 (r317085) +++ head/sys/arm/mv/armada38x/files.armada38x Tue Apr 18 10:32:21 2017 (r317086) @@ -7,3 +7,4 @@ arm/mv/armada38x/armada38x.c standard arm/mv/armada38x/armada38x_mp.c optional smp arm/mv/armada38x/pmsu.c standard arm/mv/armada38x/rtc.c standard +arm/mv/armada38x/armada38x_pl310.c optional pl310
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