4abb095283
step N of N: get rid of baggage by removing whole files. What's left is in approximately the same shape as when the FDT update started, that is mostly broken. What's missing is most of the 76 devices recognized in the dtd. In other words, This is barely the start of a port. Next up, gpio then i2c, followed either by straightening out usb or getting the sdhc driver to work -- both probably require getting the interrupt combiner to work first. A large chunk of work is left to do on the clocks. I barely got them attaching to fdt and didn't do anything to take advantage of the information in the dtd. None of the other existing drivers, such as they are, properly request gpios, i2c or clocks, and, of course power domains are off the table.
105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
/* $NetBSD: exynos_chipid.c,v 1.2 2015/12/21 04:58:50 marty Exp $ */
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/*-
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* Copyright (c) 2015 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Marty Fouts
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opt_exynos.h"
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#include "opt_arm_debug.h"
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#include "gpio.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(1, "$NetBSD: exynos_chipid.c,v 1.2 2015/12/21 04:58:50 marty Exp $");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/device.h>
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#include <sys/intr.h>
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#include <sys/systm.h>
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#include <sys/kmem.h>
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#include <sys/gpio.h>
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#include <dev/gpio/gpiovar.h>
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#include <arm/samsung/exynos_reg.h>
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#include <arm/samsung/exynos_intr.h>
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#include <dev/fdt/fdtvar.h>
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struct exynos_chipid_softc {
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device_t sc_dev;
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bus_space_tag_t sc_bst;
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bus_space_handle_t sc_bsh;
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};
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static int exynos_chipid_match(device_t, cfdata_t, void *);
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static void exynos_chipid_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(exynos_chipid, sizeof(struct exynos_chipid_softc),
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exynos_chipid_match, exynos_chipid_attach, NULL, NULL);
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static int
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exynos_chipid_match(device_t parent, cfdata_t cf, void *aux)
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{
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const char * const compatible[] = { "samsung,exynos4210-chipid",
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NULL };
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struct fdt_attach_args * const faa = aux;
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return of_match_compatible(faa->faa_phandle, compatible);
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}
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static void
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exynos_chipid_attach(device_t parent, device_t self, void *aux)
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{
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struct exynos_chipid_softc * const sc
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= kmem_zalloc(sizeof(*sc), KM_SLEEP);
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struct fdt_attach_args * const faa = aux;
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bus_addr_t addr;
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bus_size_t size;
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int error;
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if (fdtbus_get_reg(faa->faa_phandle, 0, &addr, &size) != 0) {
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aprint_error(": couldn't get registers\n");
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return;
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}
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sc->sc_dev = self;
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sc->sc_bst = faa->faa_bst;
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error = bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh);
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if (error) {
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aprint_error(": couldn't map %#llx: %d",
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(uint64_t)addr, error);
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return;
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}
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aprint_normal(" @ 0x%08x: CHIPID - NOT IMPLEMENTED", (uint)addr);
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aprint_naive("\n");
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aprint_normal("\n");
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}
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