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pxa2x0.c revision 1.11.4.1
      1  1.11.4.1    rpaulo /*	$NetBSD: pxa2x0.c,v 1.11.4.1 2006/09/09 02:38:11 rpaulo Exp $ */
      2       1.1       bsh 
      3       1.1       bsh /*
      4       1.7       bsh  * Copyright (c) 2002, 2005  Genetec Corporation.  All rights reserved.
      5       1.1       bsh  * Written by Hiroyuki Bessho for Genetec Corporation.
      6       1.1       bsh  *
      7       1.1       bsh  * Redistribution and use in source and binary forms, with or without
      8       1.1       bsh  * modification, are permitted provided that the following conditions
      9       1.1       bsh  * are met:
     10       1.1       bsh  * 1. Redistributions of source code must retain the above copyright
     11       1.1       bsh  *    notice, this list of conditions and the following disclaimer.
     12       1.1       bsh  * 2. Redistributions in binary form must reproduce the above copyright
     13       1.1       bsh  *    notice, this list of conditions and the following disclaimer in the
     14       1.1       bsh  *    documentation and/or other materials provided with the distribution.
     15       1.1       bsh  * 3. All advertising materials mentioning features or use of this software
     16       1.1       bsh  *    must display the following acknowledgement:
     17       1.1       bsh  *	This product includes software developed for the NetBSD Project by
     18       1.1       bsh  *	Genetec Corporation.
     19       1.1       bsh  * 4. The name of Genetec Corporation may not be used to endorse or
     20       1.1       bsh  *    promote products derived from this software without specific prior
     21       1.1       bsh  *    written permission.
     22       1.1       bsh  *
     23       1.1       bsh  * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
     24       1.1       bsh  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     25       1.1       bsh  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     26       1.1       bsh  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GENETEC CORPORATION
     27       1.1       bsh  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     28       1.1       bsh  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     29       1.1       bsh  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     30       1.1       bsh  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     31       1.1       bsh  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     32       1.1       bsh  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     33       1.1       bsh  * POSSIBILITY OF SUCH DAMAGE.
     34       1.1       bsh  *
     35       1.1       bsh  *
     36       1.1       bsh  * Autoconfiguration support for the Intel PXA2[15]0 application
     37       1.1       bsh  * processor. This code is derived from arm/sa11x0/sa11x0.c
     38       1.1       bsh  */
     39       1.1       bsh 
     40       1.1       bsh /*-
     41       1.1       bsh  * Copyright (c) 2001, The NetBSD Foundation, Inc.  All rights reserved.
     42       1.1       bsh  *
     43       1.1       bsh  * This code is derived from software contributed to The NetBSD Foundation
     44       1.1       bsh  * by IWAMOTO Toshihiro and Ichiro FUKUHARA.
     45       1.1       bsh  *
     46       1.1       bsh  * Redistribution and use in source and binary forms, with or without
     47       1.1       bsh  * modification, are permitted provided that the following conditions
     48       1.1       bsh  * are met:
     49       1.1       bsh  * 1. Redistributions of source code must retain the above copyright
     50       1.1       bsh  *    notice, this list of conditions and the following disclaimer.
     51       1.1       bsh  * 2. Redistributions in binary form must reproduce the above copyright
     52       1.1       bsh  *    notice, this list of conditions and the following disclaimer in the
     53       1.1       bsh  *    documentation and/or other materials provided with the distribution.
     54       1.1       bsh  * 3. All advertising materials mentioning features or use of this software
     55       1.1       bsh  *    must display the following acknowledgement:
     56       1.1       bsh  *      This product includes software developed by the NetBSD
     57       1.1       bsh  *      Foundation, Inc. and its contributors.
     58       1.1       bsh  * 4. Neither the name of The NetBSD Foundation nor the names of its
     59       1.1       bsh  *    contributors may be used to endorse or promote products derived
     60       1.1       bsh  *    from this software without specific prior written permission.
     61       1.1       bsh  */
     62       1.1       bsh /*-
     63       1.1       bsh  * Copyright (c) 1999
     64       1.1       bsh  *         Shin Takemura and PocketBSD Project. All rights reserved.
     65       1.1       bsh  *
     66       1.1       bsh  * Redistribution and use in source and binary forms, with or without
     67       1.1       bsh  * modification, are permitted provided that the following conditions
     68       1.1       bsh  * are met:
     69       1.1       bsh  * 1. Redistributions of source code must retain the above copyright
     70       1.1       bsh  *    notice, this list of conditions and the following disclaimer.
     71       1.1       bsh  * 2. Redistributions in binary form must reproduce the above copyright
     72       1.1       bsh  *    notice, this list of conditions and the following disclaimer in the
     73       1.1       bsh  *    documentation and/or other materials provided with the distribution.
     74       1.1       bsh  * 3. All advertising materials mentioning features or use of this software
     75       1.1       bsh  *    must display the following acknowledgement:
     76       1.1       bsh  *	This product includes software developed by the PocketBSD project
     77       1.1       bsh  *	and its contributors.
     78       1.1       bsh  * 4. Neither the name of the project nor the names of its contributors
     79       1.1       bsh  *    may be used to endorse or promote products derived from this software
     80       1.1       bsh  *    without specific prior written permission.
     81       1.1       bsh  *
     82       1.1       bsh  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     83       1.1       bsh  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     84       1.1       bsh  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     85       1.1       bsh  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     86       1.1       bsh  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     87       1.1       bsh  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     88       1.1       bsh  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     89       1.1       bsh  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     90       1.1       bsh  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     91       1.1       bsh  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     92       1.1       bsh  * SUCH DAMAGE.
     93       1.1       bsh  *
     94       1.1       bsh  */
     95       1.4     lukem 
     96       1.4     lukem #include <sys/cdefs.h>
     97  1.11.4.1    rpaulo __KERNEL_RCSID(0, "$NetBSD: pxa2x0.c,v 1.11.4.1 2006/09/09 02:38:11 rpaulo Exp $");
     98       1.1       bsh 
     99       1.3       scw #include "pxaintc.h"
    100       1.3       scw #include "pxagpio.h"
    101       1.3       scw #if 0
    102       1.3       scw #include "pxadmac.h"	/* Not yet */
    103       1.3       scw #endif
    104       1.3       scw 
    105       1.3       scw #include "locators.h"
    106       1.3       scw 
    107       1.1       bsh #include <sys/param.h>
    108       1.1       bsh #include <sys/systm.h>
    109       1.1       bsh #include <sys/device.h>
    110       1.1       bsh #include <sys/kernel.h>
    111       1.1       bsh #include <sys/reboot.h>
    112       1.1       bsh 
    113       1.1       bsh #include <machine/cpu.h>
    114       1.1       bsh #include <machine/bus.h>
    115       1.1       bsh 
    116       1.1       bsh #include <arm/cpufunc.h>
    117       1.1       bsh #include <arm/mainbus/mainbus.h>
    118       1.8       bsh #include <arm/xscale/pxa2x0cpu.h>
    119       1.1       bsh #include <arm/xscale/pxa2x0reg.h>
    120       1.1       bsh #include <arm/xscale/pxa2x0var.h>
    121       1.7       bsh #include <arm/xscale/xscalereg.h>
    122       1.1       bsh 
    123       1.3       scw struct pxaip_softc {
    124       1.3       scw 	struct device sc_dev;
    125       1.3       scw 	bus_space_tag_t sc_bust;
    126       1.3       scw 	bus_dma_tag_t sc_dmat;
    127       1.3       scw 	bus_space_handle_t sc_bush_clk;
    128       1.3       scw };
    129       1.1       bsh 
    130       1.1       bsh /* prototypes */
    131       1.3       scw static int	pxaip_match(struct device *, struct cfdata *, void *);
    132       1.3       scw static void	pxaip_attach(struct device *, struct device *, void *);
    133       1.6  drochner static int 	pxaip_search(struct device *, struct cfdata *,
    134       1.9  drochner 			     const int *, void *);
    135       1.3       scw static void	pxaip_attach_critical(struct pxaip_softc *);
    136       1.3       scw static int	pxaip_print(void *, const char *);
    137       1.3       scw 
    138       1.3       scw static int	pxaip_measure_cpuclock(struct pxaip_softc *);
    139       1.1       bsh 
    140       1.8       bsh #if defined(CPU_XSCALE_PXA250) && defined(CPU_XSCALE_PXA270)
    141       1.8       bsh # define SUPPORTED_CPU	"PXA250 and PXA270"
    142       1.8       bsh #elif defined(CPU_XSCALE_PXA250)
    143       1.8       bsh # define SUPPORTED_CPU	"PXA250"
    144       1.8       bsh #elif defined(CPU_XSCALE_PXA270)
    145       1.8       bsh # define SUPPORTED_CPU	"PXA270"
    146       1.8       bsh #else
    147       1.8       bsh # define SUPPORTED_CPU	"none of PXA2xx"
    148       1.8       bsh #endif
    149       1.8       bsh 
    150       1.1       bsh /* attach structures */
    151       1.3       scw CFATTACH_DECL(pxaip, sizeof(struct pxaip_softc),
    152       1.3       scw     pxaip_match, pxaip_attach, NULL, NULL);
    153       1.1       bsh 
    154       1.3       scw static struct pxaip_softc *pxaip_sc;
    155       1.1       bsh 
    156       1.1       bsh static int
    157       1.3       scw pxaip_match(struct device *parent, struct cfdata *match, void *aux)
    158       1.1       bsh {
    159       1.1       bsh 
    160       1.8       bsh #if	!defined(CPU_XSCALE_PXA270)
    161       1.8       bsh 	if (__CPU_IS_PXA270)
    162       1.8       bsh 		goto bad_config;
    163       1.8       bsh #endif
    164       1.8       bsh 
    165       1.8       bsh #if	!defined(CPU_XSCALE_PXA250)
    166       1.8       bsh 	if (__CPU_IS_PXA250)
    167       1.8       bsh 		goto bad_config;
    168       1.8       bsh #endif
    169       1.8       bsh 
    170       1.1       bsh 	return 1;
    171       1.8       bsh 
    172       1.8       bsh #if	defined(CPU_XSCALE_PXA250) + defined(CPU_XSCALE_PXA270) != 2
    173       1.8       bsh  bad_config:
    174       1.8       bsh 	aprint_error("Kernel is configured for %s, but CPU is %s\n",
    175       1.8       bsh 		     SUPPORTED_CPU, __CPU_IS_PXA270 ? "PXA270" : "PXA250");
    176       1.8       bsh 	return 0;
    177       1.8       bsh #endif
    178       1.1       bsh }
    179       1.1       bsh 
    180       1.3       scw static void
    181       1.3       scw pxaip_attach(struct device *parent, struct device *self, void *aux)
    182       1.1       bsh {
    183       1.3       scw 	struct pxaip_softc *sc = (struct pxaip_softc *)self;
    184       1.3       scw 	int cpuclock;
    185       1.1       bsh 
    186       1.3       scw 	pxaip_sc = sc;
    187       1.3       scw 	sc->sc_bust = &pxa2x0_bs_tag;
    188       1.3       scw 	sc->sc_dmat = &pxa2x0_bus_dma_tag;
    189       1.3       scw 
    190       1.3       scw 	aprint_normal(": PXA2x0 Onchip Peripheral Bus\n");
    191       1.3       scw 
    192       1.3       scw 	if (bus_space_map(sc->sc_bust, PXA2X0_CLKMAN_BASE, PXA2X0_CLKMAN_SIZE,
    193       1.3       scw 	    0, &sc->sc_bush_clk))
    194       1.3       scw 		panic("pxaip_attach: failed to map CLKMAN");
    195       1.1       bsh 
    196       1.3       scw 	/*
    197       1.3       scw 	 * Calculate clock speed
    198       1.3       scw 	 * This takes 2 secs at most.
    199       1.3       scw 	 */
    200       1.3       scw 	cpuclock = pxaip_measure_cpuclock(sc) / 1000;
    201       1.3       scw 	printf("%s: CPU clock = %d.%03d MHz\n", self->dv_xname,
    202       1.3       scw 	    cpuclock/1000, cpuclock%1000 );
    203       1.1       bsh 
    204       1.8       bsh 	aprint_normal("%s: kernel is configured for " SUPPORTED_CPU
    205       1.8       bsh 		      ", cpu type is %s\n",
    206       1.8       bsh 		      self->dv_xname,
    207       1.8       bsh 		      __CPU_IS_PXA270 ? "PXA270" : "PXA250");
    208       1.8       bsh 
    209       1.1       bsh 	/*
    210       1.3       scw 	 * Attach critical devices
    211       1.1       bsh 	 */
    212       1.3       scw 	pxaip_attach_critical(sc);
    213       1.1       bsh 
    214       1.3       scw 	/*
    215       1.3       scw 	 * Attach all other devices
    216       1.3       scw 	 */
    217       1.6  drochner 	config_search_ia(pxaip_search, self, "pxaip", sc);
    218       1.1       bsh }
    219       1.1       bsh 
    220       1.3       scw static int
    221       1.6  drochner pxaip_search(struct device *parent, struct cfdata *cf,
    222       1.9  drochner 	     const int *ldesc, void *aux)
    223       1.1       bsh {
    224       1.3       scw 	struct pxaip_softc *sc = aux;
    225       1.3       scw 	struct pxaip_attach_args aa;
    226       1.1       bsh 
    227  1.11.4.1    rpaulo 	aa.pxa_iot = sc->sc_bust;
    228  1.11.4.1    rpaulo 	aa.pxa_dmat = sc->sc_dmat;
    229  1.11.4.1    rpaulo 	aa.pxa_addr = cf->cf_loc[PXAIPCF_ADDR];
    230  1.11.4.1    rpaulo 	aa.pxa_size = cf->cf_loc[PXAIPCF_SIZE];
    231       1.1       bsh 	aa.pxa_index = cf->cf_loc[PXAIPCF_INDEX];
    232  1.11.4.1    rpaulo 	aa.pxa_intr = cf->cf_loc[PXAIPCF_INTR];
    233       1.1       bsh 
    234  1.11.4.1    rpaulo 	if (config_match(parent, cf, &aa))
    235  1.11.4.1    rpaulo 		config_attach(parent, cf, &aa, pxaip_print);
    236       1.1       bsh 
    237  1.11.4.1    rpaulo 	return 0;
    238       1.1       bsh }
    239       1.1       bsh 
    240       1.3       scw static void
    241       1.3       scw pxaip_attach_critical(struct pxaip_softc *sc)
    242       1.3       scw {
    243       1.3       scw 	struct pxaip_attach_args aa;
    244       1.3       scw 
    245  1.11.4.1    rpaulo 	aa.pxa_iot = sc->sc_bust;
    246  1.11.4.1    rpaulo 	aa.pxa_dmat = sc->sc_dmat;
    247  1.11.4.1    rpaulo 	aa.pxa_addr = PXA2X0_INTCTL_BASE;
    248  1.11.4.1    rpaulo 	aa.pxa_size = PXA2X0_INTCTL_SIZE;
    249  1.11.4.1    rpaulo 	aa.pxa_intr = PXAIPCF_INTR_DEFAULT;
    250       1.3       scw 	if (config_found(&sc->sc_dev, &aa, pxaip_print) == NULL)
    251       1.3       scw 		panic("pxaip_attach_critical: failed to attach INTC!");
    252       1.3       scw 
    253       1.3       scw #if NPXAGPIO > 0
    254  1.11.4.1    rpaulo 	aa.pxa_iot = sc->sc_bust;
    255  1.11.4.1    rpaulo 	aa.pxa_dmat = sc->sc_dmat;
    256  1.11.4.1    rpaulo 	aa.pxa_addr = PXA2X0_GPIO_BASE;
    257  1.11.4.1    rpaulo 	aa.pxa_size = PXA2X0_GPIO_SIZE;
    258  1.11.4.1    rpaulo 	aa.pxa_intr = PXAIPCF_INTR_DEFAULT;
    259       1.3       scw 	if (config_found(&sc->sc_dev, &aa, pxaip_print) == NULL)
    260       1.3       scw 		panic("pxaip_attach_critical: failed to attach GPIO!");
    261       1.3       scw #endif
    262       1.3       scw 
    263       1.3       scw #if NPXADMAC > 0
    264  1.11.4.1    rpaulo 	aa.pxa_iot = sc->sc_bust;
    265  1.11.4.1    rpaulo 	aa.pxa_dmat = sc->sc_dmat;
    266  1.11.4.1    rpaulo 	aa.pxa_addr = PXA2X0_DMAC_BASE;
    267  1.11.4.1    rpaulo 	aa.pxa_size = PXA2X0_DMAC_SIZE;
    268  1.11.4.1    rpaulo 	aa.pxa_intr = PXA2X0_INT_DMA;
    269       1.3       scw 	if (config_found(&sc->sc_dev, &aa, pxaip_print) == NULL)
    270       1.3       scw 		panic("pxaip_attach_critical: failed to attach DMAC!");
    271       1.3       scw #endif
    272       1.3       scw }
    273       1.3       scw 
    274       1.3       scw static int
    275       1.3       scw pxaip_print(void *aux, const char *name)
    276       1.3       scw {
    277       1.3       scw 	struct pxaip_attach_args *sa = (struct pxaip_attach_args*)aux;
    278       1.3       scw 
    279       1.3       scw 	if (sa->pxa_addr != PXAIPCF_ADDR_DEFAULT) {
    280  1.11.4.1    rpaulo 		aprint_normal(" addr 0x%lx", sa->pxa_addr);
    281  1.11.4.1    rpaulo 		if (sa->pxa_size > PXAIPCF_SIZE_DEFAULT)
    282  1.11.4.1    rpaulo 			aprint_normal("-0x%lx", sa->pxa_addr + sa->pxa_size-1);
    283       1.3       scw 	}
    284  1.11.4.1    rpaulo 	if (sa->pxa_intr != PXAIPCF_INTR_DEFAULT)
    285  1.11.4.1    rpaulo 		aprint_normal(" intr %d", sa->pxa_intr);
    286       1.3       scw 
    287  1.11.4.1    rpaulo 	return (UNCONF);
    288       1.3       scw }
    289       1.3       scw 
    290       1.1       bsh static inline uint32_t
    291       1.8       bsh read_clock_counter_xsc1(void)
    292       1.1       bsh {
    293  1.11.4.1    rpaulo 	uint32_t x;
    294  1.11.4.1    rpaulo 	__asm volatile("mrc	p14, 0, %0, c1, c0, 0" : "=r" (x) );
    295       1.1       bsh 
    296  1.11.4.1    rpaulo 	return x;
    297       1.1       bsh }
    298       1.1       bsh 
    299       1.8       bsh static inline uint32_t
    300       1.8       bsh read_clock_counter_xsc2(void)
    301       1.8       bsh {
    302  1.11.4.1    rpaulo 	uint32_t x;
    303  1.11.4.1    rpaulo 	__asm volatile("mrc	p14, 0, %0, c1, c1, 0" : "=r" (x) );
    304       1.8       bsh 
    305  1.11.4.1    rpaulo 	return x;
    306       1.8       bsh }
    307       1.8       bsh 
    308       1.3       scw static int
    309       1.3       scw pxaip_measure_cpuclock(struct pxaip_softc *sc)
    310       1.1       bsh {
    311       1.1       bsh 	uint32_t rtc0, rtc1, start, end;
    312       1.1       bsh 	uint32_t pmcr_save;
    313       1.3       scw 	bus_space_handle_t ioh;
    314       1.3       scw 	int irq;
    315       1.8       bsh 	int is_xsc2 = CPU_IS_PXA270;
    316       1.8       bsh #define	read_clock_counter()	(is_xsc2 ? read_clock_counter_xsc2() : \
    317       1.8       bsh 					read_clock_counter_xsc1())
    318       1.3       scw 
    319       1.3       scw 	if (bus_space_map(sc->sc_bust, PXA2X0_RTC_BASE, PXA2X0_RTC_SIZE, 0,
    320       1.3       scw 	    &ioh))
    321       1.3       scw 		panic("pxaip_measure_cpuclock: can't map RTC");
    322       1.3       scw 
    323       1.3       scw 	irq = disable_interrupts(I32_bit|F32_bit);
    324       1.1       bsh 
    325       1.8       bsh 	if (is_xsc2) {
    326      1.11     perry 		__asm volatile(
    327       1.8       bsh 			"mrc p14, 0, %0, c0, c1, 0" : "=r" (pmcr_save));
    328       1.8       bsh 		/* Enable clock counter */
    329      1.11     perry 		__asm volatile(
    330       1.8       bsh 			"mcr p14, 0, %0, c0, c1, 0" : : "r" (PMNC_E|PMNC_C));
    331       1.8       bsh 	}
    332       1.8       bsh 	else {
    333      1.11     perry 		__asm volatile(
    334       1.8       bsh 			"mrc p14, 0, %0, c0, c0, 0" : "=r" (pmcr_save));
    335       1.8       bsh 		/* Enable clock counter */
    336      1.11     perry 		__asm volatile(
    337       1.8       bsh 			"mcr p14, 0, %0, c0, c0, 0" : : "r" (PMNC_E|PMNC_C));
    338       1.8       bsh 	}
    339       1.1       bsh 
    340       1.3       scw 	rtc0 = bus_space_read_4(sc->sc_bust, ioh, RTC_RCNR);
    341       1.1       bsh 	/* Wait for next second starts */
    342       1.3       scw 	while ((rtc1 = bus_space_read_4(sc->sc_bust, ioh, RTC_RCNR)) == rtc0)
    343       1.1       bsh 		;
    344       1.1       bsh 	start = read_clock_counter();
    345       1.3       scw 	while(rtc1 == bus_space_read_4(sc->sc_bust, ioh, RTC_RCNR))
    346       1.1       bsh 		;		/* Wait for 1sec */
    347       1.1       bsh 	end = read_clock_counter();
    348       1.1       bsh 
    349       1.8       bsh 	if (is_xsc2)
    350      1.11     perry 		__asm volatile(
    351       1.8       bsh 			"mcr p14, 0, %0, c0, c1, 0" : : "r" (pmcr_save));
    352       1.8       bsh 	else
    353      1.11     perry 		__asm volatile(
    354       1.8       bsh 			"mcr p14, 0, %0, c0, c0, 0" : : "r" (pmcr_save));
    355       1.1       bsh 	restore_interrupts(irq);
    356       1.1       bsh 
    357       1.3       scw 	bus_space_unmap(sc->sc_bust, ioh, PXA2X0_RTC_SIZE);
    358       1.3       scw 
    359       1.1       bsh 	return end - start;
    360       1.1       bsh }
    361       1.1       bsh 
    362       1.1       bsh void
    363       1.7       bsh pxa2x0_turbo_mode(int f)
    364       1.1       bsh {
    365  1.11.4.1    rpaulo 	__asm volatile("mcr p14, 0, %0, c6, c0, 0" : : "r" (f));
    366       1.3       scw }
    367       1.3       scw 
    368       1.3       scw void
    369       1.3       scw pxa2x0_probe_sdram(vaddr_t memctl_va, paddr_t *start, paddr_t *size)
    370       1.3       scw {
    371       1.3       scw 	u_int32_t mdcnfg, dwid, dcac, drac, dnb;
    372       1.3       scw 	int i;
    373       1.3       scw 
    374       1.3       scw 	mdcnfg = *((volatile u_int32_t *)(memctl_va + MEMCTL_MDCNFG));
    375       1.3       scw 
    376       1.3       scw 	/*
    377       1.3       scw 	 * Scan all 4 SDRAM banks
    378       1.3       scw 	 */
    379       1.3       scw 	for (i = 0; i < PXA2X0_SDRAM_BANKS; i++) {
    380       1.3       scw 		start[i] = 0;
    381       1.3       scw 		size[i] = 0;
    382       1.3       scw 
    383       1.3       scw 		switch (i) {
    384       1.3       scw 		case 0:
    385       1.3       scw 		case 1:
    386       1.3       scw 			if ((i == 0 && (mdcnfg & MDCNFG_DE0) == 0) ||
    387       1.3       scw 			    (i == 1 && (mdcnfg & MDCNFG_DE1) == 0))
    388       1.3       scw 				continue;
    389       1.3       scw 			dwid = mdcnfg >> MDCNFD_DWID01_SHIFT;
    390       1.3       scw 			dcac = mdcnfg >> MDCNFD_DCAC01_SHIFT;
    391       1.3       scw 			drac = mdcnfg >> MDCNFD_DRAC01_SHIFT;
    392       1.3       scw 			dnb = mdcnfg >> MDCNFD_DNB01_SHIFT;
    393       1.3       scw 			break;
    394       1.3       scw 
    395       1.3       scw 		case 2:
    396       1.3       scw 		case 3:
    397       1.3       scw 			if ((i == 2 && (mdcnfg & MDCNFG_DE2) == 0) ||
    398       1.3       scw 			    (i == 3 && (mdcnfg & MDCNFG_DE3) == 0))
    399       1.3       scw 				continue;
    400       1.3       scw 			dwid = mdcnfg >> MDCNFD_DWID23_SHIFT;
    401       1.3       scw 			dcac = mdcnfg >> MDCNFD_DCAC23_SHIFT;
    402       1.3       scw 			drac = mdcnfg >> MDCNFD_DRAC23_SHIFT;
    403       1.3       scw 			dnb = mdcnfg >> MDCNFD_DNB23_SHIFT;
    404       1.3       scw 			break;
    405       1.5   thorpej 		default:
    406       1.5   thorpej 			panic("pxa2x0_probe_sdram: impossible");
    407       1.3       scw 		}
    408       1.3       scw 
    409       1.3       scw 		dwid = 2 << (1 - (dwid & MDCNFD_DWID_MASK));  /* 16/32 width */
    410       1.3       scw 		dcac = 1 << ((dcac & MDCNFD_DCAC_MASK) + 8);  /* 8-11 columns */
    411       1.3       scw 		drac = 1 << ((drac & MDCNFD_DRAC_MASK) + 11); /* 11-13 rows */
    412       1.3       scw 		dnb = 2 << (dnb & MDCNFD_DNB_MASK);	      /* # of banks */
    413       1.3       scw 
    414       1.3       scw 		size[i] = (paddr_t)(dwid * dcac * drac * dnb);
    415       1.3       scw 		start[i] = PXA2X0_SDRAM0_START + (i * PXA2X0_SDRAM_BANK_SIZE);
    416       1.3       scw 	}
    417       1.3       scw }
    418       1.3       scw 
    419       1.3       scw void
    420       1.3       scw pxa2x0_clkman_config(u_int clk, boolean_t enable)
    421       1.3       scw {
    422       1.3       scw 	struct pxaip_softc *sc;
    423       1.3       scw 	u_int32_t rv;
    424       1.3       scw 
    425       1.3       scw 	KDASSERT(pxaip_sc != NULL);
    426       1.3       scw 	sc = pxaip_sc;
    427       1.3       scw 
    428       1.3       scw 	rv = bus_space_read_4(sc->sc_bust, sc->sc_bush_clk, CLKMAN_CKEN);
    429       1.3       scw 	rv &= ~clk;
    430       1.3       scw 
    431       1.3       scw 	if (enable)
    432       1.3       scw 		rv |= clk;
    433       1.3       scw 
    434       1.3       scw 	bus_space_write_4(sc->sc_bust, sc->sc_bush_clk, CLKMAN_CKEN, rv);
    435       1.1       bsh }
    436