diff options
Diffstat (limited to 'sys/arch/arm/s3c2xx0/s3c2410.c')
| -rw-r--r-- | sys/arch/arm/s3c2xx0/s3c2410.c | 275 |
1 files changed, 0 insertions, 275 deletions
diff --git a/sys/arch/arm/s3c2xx0/s3c2410.c b/sys/arch/arm/s3c2xx0/s3c2410.c deleted file mode 100644 index 777ab826155..00000000000 --- a/sys/arch/arm/s3c2xx0/s3c2410.c +++ /dev/null @@ -1,275 +0,0 @@ -/* $OpenBSD: s3c2410.c,v 1.2 2008/12/30 07:30:48 drahn Exp $ */ -/* $NetBSD: s3c2410.c,v 1.10 2005/12/11 12:16:51 christos Exp $ */ - -/* - * Copyright (c) 2003, 2005 Genetec corporation. All rights reserved. - * Written by Hiroyuki Bessho for Genetec corporation. - * - * 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. - * 3. The name of Genetec corporation may not be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY GENETEC CORP. ``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 GENETEC CORP. - * 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> -//__KERNEL_RCSID(0, "$NetBSD: s3c2410.c,v 1.10 2005/12/11 12:16:51 christos Exp $"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/device.h> -#include <sys/kernel.h> -#include <sys/reboot.h> - -#include <machine/cpu.h> -#include <machine/bus.h> - -#include <arm/cpufunc.h> -#include <arm/mainbus/mainbus.h> -#include <arm/s3c2xx0/s3c2410reg.h> -#include <arm/s3c2xx0/s3c2410var.h> - -/* prototypes */ -int s3c2410_match(struct device *, void *, void *); -void s3c2410_attach(struct device *, struct device *, void *); -int s3c2410_search(struct device *, void *, void *); - -/* attach structures */ -/* -#if 0 -CFATTACH_DECL(ssio, sizeof(struct s3c24x0_softc), s3c2410_match, s3c2410_attach, - NULL, NULL); -#endif -*/ - -struct cfattach ssio_ca = { - sizeof(struct s3c24x0_softc), s3c2410_match, s3c2410_attach -}; - -struct cfdriver ssio_cd = { - NULL, "ssio", DV_DULL -}; - - -extern struct bus_space s3c2xx0_bs_tag; - -struct s3c2xx0_softc *s3c2xx0_softc; - -#ifdef DEBUG_PORTF -volatile uint8_t *portf; /* for debug */ -#endif - -static int -s3c2410_print(void *aux, const char *name) -{ - struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *) aux; - - if (sa->sa_size) - printf(" addr 0x%lx", sa->sa_addr); - if (sa->sa_size > 1) - printf("-0x%lx", sa->sa_addr + sa->sa_size - 1); - if (sa->sa_intr != -1) - printf(" intr %d", sa->sa_intr); - if (sa->sa_index != -1) - printf(" unit %d", sa->sa_index); - - return (UNCONF); -} - -int -s3c2410_match(struct device *parent, void *match, void *aux) -{ - return 1; -} - -void -s3c2410_attach(struct device *parent, struct device *self, void *aux) -{ - struct s3c24x0_softc *sc = (struct s3c24x0_softc *) self; - bus_space_tag_t iot; - const char *which_registers; /* for panic message */ - -#define FAIL(which) do { \ - which_registers=(which); goto abort; }while(/*CONSTCOND*/0) - - s3c2xx0_softc = &(sc->sc_sx); - sc->sc_sx.sc_iot = iot = &s3c2xx0_bs_tag; - - if (bus_space_map(iot, - S3C2410_INTCTL_BASE, S3C2410_INTCTL_SIZE, - BUS_SPACE_MAP_LINEAR, &sc->sc_sx.sc_intctl_ioh)) - FAIL("intc"); - /* tell register addresses to interrupt handler */ - s3c2410_intr_init(sc); - - /* Map the GPIO registers */ - if (bus_space_map(iot, S3C2410_GPIO_BASE, S3C2410_GPIO_SIZE, - 0, &sc->sc_sx.sc_gpio_ioh)) - FAIL("GPIO"); -#ifdef DEBUG_PORTF - { - extern volatile uint8_t *portf; - /* make all ports output */ - bus_space_write_2(iot, sc->sc_sx.sc_gpio_ioh, GPIO_PCONF, 0x5555); - portf = (volatile uint8_t *) - ((char *)bus_space_vaddr(iot, sc->sc_sx.sc_gpio_ioh) + GPIO_PDATF); - } -#endif - -#if 0 - /* Map the DMA controller registers */ - if (bus_space_map(iot, S3C2410_DMAC_BASE, S3C2410_DMAC_SIZE, - 0, &sc->sc_sx.sc_dmach)) - FAIL("DMAC"); -#endif - - /* Memory controller */ - if (bus_space_map(iot, S3C2410_MEMCTL_BASE, - S3C24X0_MEMCTL_SIZE, 0, &sc->sc_sx.sc_memctl_ioh)) - FAIL("MEMC"); - /* Clock manager */ - if (bus_space_map(iot, S3C2410_CLKMAN_BASE, - S3C24X0_CLKMAN_SIZE, 0, &sc->sc_sx.sc_clkman_ioh)) - FAIL("CLK"); - -#if 0 - /* Real time clock */ - if (bus_space_map(iot, S3C2410_RTC_BASE, - S3C24X0_RTC_SIZE, 0, &sc->sc_sx.sc_rtc_ioh)) - FAIL("RTC"); -#endif - - if (bus_space_map(iot, S3C2410_TIMER_BASE, - S3C24X0_TIMER_SIZE, 0, &sc->sc_timer_ioh)) - FAIL("TIMER"); - - /* calculate current clock frequency */ - s3c24x0_clock_freq(&sc->sc_sx); - printf(": fclk %d MHz hclk %d MHz pclk %d MHz\n", - sc->sc_sx.sc_fclk / 1000000, sc->sc_sx.sc_hclk / 1000000, - sc->sc_sx.sc_pclk / 1000000); - - /* get busdma tag for the platform */ - sc->sc_sx.sc_dmat = s3c2xx0_bus_dma_init(&s3c2xx0_bus_dma); - - /* - * Attach devices. - */ - config_search(s3c2410_search, self, sc); - - return; - -abort: - panic("%s: unable to map %s registers", - self->dv_xname, which_registers); - -#undef FAIL -} - -int -s3c2410_search(struct device * parent, void * c, void *aux) -{ - struct s3c24x0_softc *sc = (struct s3c24x0_softc *) parent; - struct s3c2xx0_attach_args aa; - struct cfdata *cf = c; - - - aa.sa_sc = sc; - aa.sa_iot = sc->sc_sx.sc_iot; - #if 0 - aa.sa_addr = cf->cf_loc[SSIOCF_ADDR]; - aa.sa_size = cf->cf_loc[SSIOCF_SIZE]; - aa.sa_index = cf->cf_loc[SSIOCF_INDEX]; - aa.sa_intr = cf->cf_loc[SSIOCF_INTR]; - #else - aa.sa_index = cf->cf_loc[0]; - aa.sa_addr = cf->cf_loc[1]; - aa.sa_size = cf->cf_loc[2]; - aa.sa_intr = cf->cf_loc[3]; - #endif - - aa.sa_dmat = sc->sc_sx.sc_dmat; - - config_found(parent, &aa, s3c2410_print); - - return 0; -} - -/* - * fill sc_pclk, sc_hclk, sc_fclk from values of clock controller register. - * - * s3c24x0_clock_freq2() is meant to be called from kernel startup routines. - * s3c24x0_clock_freq() is for after kernel initialization is done. - */ -void -s3c24x0_clock_freq2(vaddr_t clkman_base, int *fclk, int *hclk, int *pclk) -{ - uint32_t pllcon, divn; - int mdiv, pdiv, sdiv; - int f, h, p; - - pllcon = *(volatile uint32_t *)(clkman_base + CLKMAN_MPLLCON); - divn = *(volatile uint32_t *)(clkman_base + CLKMAN_CLKDIVN); - - mdiv = (pllcon & PLLCON_MDIV_MASK) >> PLLCON_MDIV_SHIFT; - pdiv = (pllcon & PLLCON_PDIV_MASK) >> PLLCON_PDIV_SHIFT; - sdiv = (pllcon & PLLCON_SDIV_MASK) >> PLLCON_SDIV_SHIFT; - - f = ((mdiv + 8) * S3C2XX0_XTAL_CLK) / ((pdiv + 2) * (1 << sdiv)); - h = f; - if (divn & CLKDIVN_HDIVN) - h /= 2; - p = h; - if (divn & CLKDIVN_PDIVN) - p /= 2; - - if (fclk) *fclk = f; - if (hclk) *hclk = h; - if (pclk) *pclk = p; - -} - -void -s3c24x0_clock_freq(struct s3c2xx0_softc *sc) -{ - s3c24x0_clock_freq2( - (vaddr_t)bus_space_vaddr(sc->sc_iot, sc->sc_clkman_ioh), - &sc->sc_fclk, &sc->sc_hclk, &sc->sc_pclk); -} - -/* - * Issue software reset command. - * called with MMU off. - * - * S3C2410 doesn't have sowtware reset bit like S3C2800. - * use watch dog timer and make it fire immediately. - */ -void -s3c2410_softreset(void) -{ - disable_interrupts(I32_bit|F32_bit); - - *(volatile unsigned int *)(S3C2410_WDT_BASE + WDT_WTCON) - = (0 << WTCON_PRESCALE_SHIFT) | WTCON_ENABLE | - WTCON_CLKSEL_16 | WTCON_ENRST; -} - - |