1 /*- 2 * Copyright (c) 2012 Olivier Houchard. 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 ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include <sys/cdefs.h> 27 __FBSDID("$FreeBSD$"); 28 29 /* 30 * The machine-dependent part of the arm/pl310 driver for imx6 SoCs. 31 */ 32 33 #include <sys/types.h> 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/bus.h> 37 #include <sys/rman.h> 38 #include <sys/lock.h> 39 #include <sys/mutex.h> 40 41 #include <machine/bus.h> 42 #include <machine/pl310.h> 43 44 void 45 platform_pl310_init(struct pl310_softc *sc) 46 { 47 uint32_t aux, prefetch; 48 49 aux = pl310_read4(sc, PL310_AUX_CTRL); 50 prefetch = pl310_read4(sc, PL310_PREFETCH_CTRL); 51 52 if (bootverbose) { 53 device_printf(sc->sc_dev, "Early BRESP response: %s\n", 54 (aux & AUX_CTRL_EARLY_BRESP) ? "enabled" : "disabled"); 55 device_printf(sc->sc_dev, "Instruction prefetch: %s\n", 56 (aux & AUX_CTRL_INSTR_PREFETCH) ? "enabled" : "disabled"); 57 device_printf(sc->sc_dev, "Data prefetch: %s\n", 58 (aux & AUX_CTRL_DATA_PREFETCH) ? "enabled" : "disabled"); 59 device_printf(sc->sc_dev, "Non-secure interrupt control: %s\n", 60 (aux & AUX_CTRL_NS_INT_CTRL) ? "enabled" : "disabled"); 61 device_printf(sc->sc_dev, "Non-secure lockdown: %s\n", 62 (aux & AUX_CTRL_NS_LOCKDOWN) ? "enabled" : "disabled"); 63 device_printf(sc->sc_dev, "Share override: %s\n", 64 (aux & AUX_CTRL_SHARE_OVERRIDE) ? "enabled" : "disabled"); 65 66 device_printf(sc->sc_dev, "Double linefil: %s\n", 67 (prefetch & PREFETCH_CTRL_DL) ? "enabled" : "disabled"); 68 device_printf(sc->sc_dev, "Instruction prefetch: %s\n", 69 (prefetch & PREFETCH_CTRL_INSTR_PREFETCH) ? "enabled" : "disabled"); 70 device_printf(sc->sc_dev, "Data prefetch: %s\n", 71 (prefetch & PREFETCH_CTRL_DATA_PREFETCH) ? "enabled" : "disabled"); 72 device_printf(sc->sc_dev, "Double linefill on WRAP request: %s\n", 73 (prefetch & PREFETCH_CTRL_DL_ON_WRAP) ? "enabled" : "disabled"); 74 device_printf(sc->sc_dev, "Prefetch drop: %s\n", 75 (prefetch & PREFETCH_CTRL_PREFETCH_DROP) ? "enabled" : "disabled"); 76 device_printf(sc->sc_dev, "Incr double Linefill: %s\n", 77 (prefetch & PREFETCH_CTRL_INCR_DL) ? "enabled" : "disabled"); 78 device_printf(sc->sc_dev, "Not same ID on exclusive sequence: %s\n", 79 (prefetch & PREFETCH_CTRL_NOTSAMEID) ? "enabled" : "disabled"); 80 device_printf(sc->sc_dev, "Prefetch offset: %d\n", 81 (prefetch & PREFETCH_CTRL_OFFSET_MASK)); 82 } 83 } 84 85 void 86 platform_pl310_write_ctrl(struct pl310_softc *sc, uint32_t val) 87 { 88 89 pl310_write4(sc, PL310_CTRL, val); 90 } 91 92 void 93 platform_pl310_write_debug(struct pl310_softc *sc, uint32_t val) 94 { 95 96 pl310_write4(sc, PL310_DEBUG_CTRL, val); 97 } 98 99