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/* $OpenBSD: imx.c,v 1.1 2013/09/06 20:45:53 patrick Exp $ */
/*
* Copyright (c) 2005,2008 Dale Rahn <drahn@openbsd.com>
* Copyright (c) 2012-2013 Patrick Wildt <patrick@blueri.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/reboot.h>
#define _ARM32_BUS_DMA_PRIVATE
#include <machine/bus.h>
#include <arch/arm/armv7/armv7var.h>
#include <armv7/imx/imxvar.h>
struct arm32_bus_dma_tag imx_bus_dma_tag = {
0,
0,
NULL,
_bus_dmamap_create,
_bus_dmamap_destroy,
_bus_dmamap_load,
_bus_dmamap_load_mbuf,
_bus_dmamap_load_uio,
_bus_dmamap_load_raw,
_bus_dmamap_unload,
_bus_dmamap_sync,
_bus_dmamem_alloc,
_bus_dmamem_free,
_bus_dmamem_map,
_bus_dmamem_unmap,
_bus_dmamem_mmap,
};
struct board_dev {
char *name;
int unit;
};
struct board_dev phyflex_imx6_devs[] = {
{ "imxccm", 0 },
{ "imxiomuxc", 0 },
{ "imxdog", 0 },
{ "imxocotp", 0 },
{ "imxuart", 3 },
{ "imxgpio", 0 },
{ "imxgpio", 1 },
{ "imxgpio", 2 },
{ "imxgpio", 3 },
{ "imxgpio", 4 },
{ "imxgpio", 5 },
{ "imxgpio", 6 },
{ "imxesdhc", 1 },
{ "imxesdhc", 2 },
{ "ehci", 0 },
{ "imxenet", 0 },
{ "ahci", 0 },
{ NULL, 0 }
};
struct board_dev sabrelite_devs[] = {
{ "imxccm", 0 },
{ "imxiomuxc", 0 },
{ "imxdog", 0 },
{ "imxocotp", 0 },
{ "imxuart", 1 },
{ "imxgpio", 0 },
{ "imxgpio", 1 },
{ "imxgpio", 2 },
{ "imxgpio", 3 },
{ "imxgpio", 4 },
{ "imxgpio", 5 },
{ "imxgpio", 6 },
{ "imxesdhc", 2 },
{ "imxesdhc", 3 },
{ "ehci", 0 },
{ "imxenet", 0 },
{ "ahci", 0 },
{ NULL, 0 }
};
struct board_dev *board_devs;
struct imx_dev *imx_devs = NULL;
struct imx_softc {
struct device sc_dv;
};
int imx_match(struct device *, void *, void *);
void imx_attach(struct device *, struct device *, void *);
int imx_submatch(struct device *, void *, void *);
struct cfattach imx_ca = {
sizeof(struct imx_softc), imx_match, imx_attach, NULL,
config_activate_children
};
struct cfdriver imx_cd = {
NULL, "imx", DV_DULL
};
int
imx_match(struct device *parent, void *cfdata, void *aux)
{
return (1);
}
void
imx_attach(struct device *parent, struct device *self, void *aux)
{
struct board_dev *bd;
switch (board_id) {
case BOARD_ID_IMX6_PHYFLEX:
printf(": PhyFLEX-i.MX6\n");
imx6_init();
board_devs = phyflex_imx6_devs;
break;
case BOARD_ID_IMX6_SABRELITE:
printf(": i.MX6 SABRE Lite\n");
imx6_init();
board_devs = sabrelite_devs;
break;
default:
printf("\n");
panic("%s: board type 0x%x unknown", __func__, board_id);
}
/* Directly configure on-board devices (dev* in config file). */
for (bd = board_devs; bd->name != NULL; bd++) {
struct imx_dev *id = imx_find_dev(bd->name, bd->unit);
struct imx_attach_args ia;
if (id == NULL)
printf("%s: device %s unit %d not found\n",
self->dv_xname, bd->name, bd->unit);
memset(&ia, 0, sizeof(ia));
ia.ia_dev = id;
ia.ia_iot = &armv7_bs_tag;
ia.ia_dmat = &imx_bus_dma_tag;
if (config_found_sm(self, &ia, NULL, imx_submatch) == NULL)
printf("%s: device %s unit %d not configured\n",
self->dv_xname, bd->name, bd->unit);
}
}
/*
* We do direct configuration of devices on this SoC "bus", so we
* never call the child device's match function at all (it can be
* NULL in the struct cfattach).
*/
int
imx_submatch(struct device *parent, void *child, void *aux)
{
struct cfdata *cf = child;
struct imx_attach_args *ia = aux;
if (strcmp(cf->cf_driver->cd_name, ia->ia_dev->name) == 0)
return (1);
/* "These are not the droids you are looking for." */
return (0);
}
void
imx_set_devs(struct imx_dev *devs)
{
imx_devs = devs;
}
struct imx_dev *
imx_find_dev(const char *name, int unit)
{
struct imx_dev *id;
if (imx_devs == NULL)
panic("%s: imx_devs == NULL", __func__);
for (id = imx_devs; id->name != NULL; id++) {
if (id->unit == unit && strcmp(id->name, name) == 0)
return (id);
}
return (NULL);
}
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