diff options
Diffstat (limited to 'sys/arch/armv7/imx/imx.c')
| -rw-r--r-- | sys/arch/armv7/imx/imx.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/sys/arch/armv7/imx/imx.c b/sys/arch/armv7/imx/imx.c new file mode 100644 index 00000000000..99014634976 --- /dev/null +++ b/sys/arch/armv7/imx/imx.c @@ -0,0 +1,201 @@ +/* $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); +} |