/* $NetBSD: amdccp_fdt.c,v 1.7 2022/12/18 15:50:32 reinoud Exp $ */

/*
* Copyright (c) 2018 Jonathan A. Kollasch
* 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 COPYRIGHT HOLDER OR
* CONTRIBUTORS 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: amdccp_fdt.c,v 1.7 2022/12/18 15:50:32 reinoud Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/bus.h>

#include <dev/fdt/fdtvar.h>

#include <dev/ic/amdccpvar.h>

struct amdccp_fdt_softc {
       struct amdccp_softc sc_sc;
};

static int amdccp_fdt_match(device_t, cfdata_t, void *);
static void amdccp_fdt_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(amdccp_fdt, sizeof(struct amdccp_fdt_softc),
   amdccp_fdt_match, amdccp_fdt_attach, NULL, NULL);

static const struct device_compatible_entry compat_data[] = {
       { .compat = "amd,ccp-seattle-v1a" },
       DEVICE_COMPAT_EOL
};

static int
amdccp_fdt_match(device_t parent, cfdata_t cf, void *aux)
{
       const struct fdt_attach_args * const faa = aux;

       return of_compatible_match(faa->faa_phandle, compat_data);
}

static void
amdccp_fdt_attach(device_t parent, device_t self, void *aux)
{
       struct amdccp_fdt_softc * const fsc = device_private(self);
       struct amdccp_softc * const sc = &fsc->sc_sc;
       const struct fdt_attach_args * const faa = aux;
       const int phandle = faa->faa_phandle;
       bus_addr_t addr;
       bus_size_t size;

       fsc->sc_sc.sc_dev = self;

       if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
               aprint_error(": couldn't get registers\n");
               return;
       }

       sc->sc_bst = faa->faa_bst;
       if (bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh) != 0) {
               aprint_error(": couldn't map registers\n");
               return;
       }

       aprint_naive("\n");
       aprint_normal(": AMD CCP\n");

       amdccp_common_attach(sc);
       pmf_device_register(self, NULL, NULL);
}