Date: Sat, 15 Feb 2014 17:19:55 +0000 (UTC) From: Ian Lepore <ian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r261938 - in head/sys: arm/freescale/imx boot/fdt/dts Message-ID: <201402151719.s1FHJtxT018152@svn.freebsd.org>
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Author: ian Date: Sat Feb 15 17:19:55 2014 New Revision: 261938 URL: http://svnweb.freebsd.org/changeset/base/261938 Log: Add a driver to provide access to imx6 on-chip one-time-programmble data. Submitted by: Steven Lawrance <stl@koffein.net> Added: head/sys/arm/freescale/imx/imx6_ocotp.c (contents, props changed) head/sys/arm/freescale/imx/imx6_ocotpreg.h (contents, props changed) head/sys/arm/freescale/imx/imx6_ocotpvar.h (contents, props changed) Modified: head/sys/arm/freescale/imx/files.imx6 head/sys/boot/fdt/dts/imx6.dtsi Modified: head/sys/arm/freescale/imx/files.imx6 ============================================================================== --- head/sys/arm/freescale/imx/files.imx6 Sat Feb 15 16:22:51 2014 (r261937) +++ head/sys/arm/freescale/imx/files.imx6 Sat Feb 15 17:19:55 2014 (r261938) @@ -22,6 +22,8 @@ arm/freescale/imx/imx6_anatop.c standar arm/freescale/imx/imx6_ccm.c standard arm/freescale/imx/imx6_machdep.c standard arm/freescale/imx/imx6_pl310.c standard +arm/freescale/imx/imx6_ocotp.c standard +arm/freescale/imx/imx6_tempmon.c standard arm/freescale/imx/imx_machdep.c standard arm/freescale/imx/imx_gpt.c standard Added: head/sys/arm/freescale/imx/imx6_ocotp.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm/freescale/imx/imx6_ocotp.c Sat Feb 15 17:19:55 2014 (r261938) @@ -0,0 +1,155 @@ +/*- + * Copyright (c) 2014 Steven Lawrance <stl@koffein.net> + * 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 AUTHOR 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 AUTHOR 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> +__FBSDID("$FreeBSD$"); + +/* + * Access to the Freescale i.MX6 On-Chip One-Time-Programmable Memory + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/bus.h> +#include <sys/rman.h> + +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> + +#include <machine/bus.h> + +#include <arm/freescale/imx/imx6_ocotpreg.h> +#include <arm/freescale/imx/imx6_ocotpvar.h> +#include <arm/freescale/imx/imx_machdep.h> + +struct ocotp_softc { + device_t dev; + struct resource *mem_res; +}; + +static struct ocotp_softc *ocotp_sc; + +static inline uint32_t +RD4(struct ocotp_softc *sc, bus_size_t off) +{ + return (bus_read_4(sc->mem_res, off)); +} + + +static int +ocotp_detach(device_t dev) +{ + struct ocotp_softc *sc; + + sc = device_get_softc(dev); + + if (sc->mem_res != NULL) + bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->mem_res); + + ocotp_sc = NULL; + + return (0); +} + +static int +ocotp_attach(device_t dev) +{ + struct ocotp_softc *sc; + int err, rid; + + sc = device_get_softc(dev); + sc->dev = dev; + + /* Allocate bus_space resources. */ + rid = 0; + sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, + RF_ACTIVE); + if (sc->mem_res == NULL) { + device_printf(dev, "Cannot allocate memory resources\n"); + err = ENXIO; + goto out; + } + + ocotp_sc = sc; + err = 0; + +out: + if (err != 0) + ocotp_detach(dev); + + return (err); +} + +static int +ocotp_probe(device_t dev) +{ + + if (!ofw_bus_status_okay(dev)) + return (ENXIO); + + if (ofw_bus_is_compatible(dev, "fsl,imx6q-ocotp") == 0) + return (ENXIO); + + device_set_desc(dev, + "Freescale i.MX6 On-Chip One-Time-Programmable Memory"); + + return (BUS_PROBE_DEFAULT); +} + +uint32_t +imx6_ocotp_read_4(bus_size_t off) +{ + + if (ocotp_sc == NULL) + panic("imx6_ocotp_read_4: softc not set!"); + + if (off > IMX6_OCOTP_LAST_REG) + panic("imx6_ocotp_read_4: offset out of range"); + + return (RD4(ocotp_sc, off)); +} + +static device_method_t ocotp_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, ocotp_probe), + DEVMETHOD(device_attach, ocotp_attach), + DEVMETHOD(device_detach, ocotp_detach), + + DEVMETHOD_END +}; + +static driver_t ocotp_driver = { + "ocotp", + ocotp_methods, + sizeof(struct ocotp_softc) +}; + +static devclass_t ocotp_devclass; + +DRIVER_MODULE(ocotp, simplebus, ocotp_driver, ocotp_devclass, 0, 0); + Added: head/sys/arm/freescale/imx/imx6_ocotpreg.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm/freescale/imx/imx6_ocotpreg.h Sat Feb 15 17:19:55 2014 (r261938) @@ -0,0 +1,81 @@ +/*- + * Copyright (c) 2014 Steven Lawrance <stl@koffein.net> + * 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 AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#ifndef IMX6_OCOTPREG_H +#define IMX6_OCOTPREG_H + +#define IMX6_OCOTP_CTRL 0x000 +#define IMX6_OCOTP_CTRL_SET 0x004 +#define IMX6_OCOTP_CTRL_CLR 0x008 +#define IMX6_OCOTP_CTRL_TOG 0x00C +#define IMX6_OCOTP_TIMING 0x010 +#define IMX6_OCOTP_DATA 0x020 +#define IMX6_OCOTP_READ_CTRL 0x030 +#define IMX6_OCOTP_READ_FUSE_DATA 0x040 +#define IMX6_OCOTP_SW_STICKY 0x050 +#define IMX6_OCOTP_SCS 0x060 +#define IMX6_OCOTP_SCS_SET 0x064 +#define IMX6_OCOTP_SCS_CLR 0x068 +#define IMX6_OCOTP_SCS_TOG 0x06C +#define IMX6_OCOTP_VERSION 0x090 +#define IMX6_OCOTP_LOCK 0x400 +#define IMX6_OCOTP_CFG0 0x410 +#define IMX6_OCOTP_CFG1 0x420 +#define IMX6_OCOTP_CFG2 0x430 +#define IMX6_OCOTP_CFG3 0x440 +#define IMX6_OCOTP_CFG4 0x450 +#define IMX6_OCOTP_CFG5 0x460 +#define IMX6_OCOTP_CFG6 0x470 +#define IMX6_OCOTP_MEM0 0x480 +#define IMX6_OCOTP_MEM1 0x490 +#define IMX6_OCOTP_MEM2 0x4A0 +#define IMX6_OCOTP_MEM3 0x4B0 +#define IMX6_OCOTP_ANA0 0x4D0 +#define IMX6_OCOTP_ANA1 0x4E0 +#define IMX6_OCOTP_ANA2 0x4F0 +#define IMX6_OCOTP_SRK0 0x580 +#define IMX6_OCOTP_SRK1 0x590 +#define IMX6_OCOTP_SRK2 0x5A0 +#define IMX6_OCOTP_SRK3 0x5B0 +#define IMX6_OCOTP_SRK4 0x5C0 +#define IMX6_OCOTP_SRK5 0x5D0 +#define IMX6_OCOTP_SRK6 0x5E0 +#define IMX6_OCOTP_SRK7 0x5F0 +#define IMX6_OCOTP_HSJC_RESP0 0x600 +#define IMX6_OCOTP_HSJC_RESP1 0x610 +#define IMX6_OCOTP_MAC0 0x620 +#define IMX6_OCOTP_MAC1 0x630 +#define IMX6_OCOTP_GP1 0x660 +#define IMX6_OCOTP_GP2 0x670 +#define IMX6_OCOTP_MISC_CONF 0x6D0 +#define IMX6_OCOTP_FIELD_RETURN 0x6E0 +#define IMX6_OCOTP_SRK_REVOKE 0x6F0 + +#define IMX6_OCOTP_LAST_REG IMX6_OCOTP_SRK_REVOKE + +#endif Added: head/sys/arm/freescale/imx/imx6_ocotpvar.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm/freescale/imx/imx6_ocotpvar.h Sat Feb 15 17:19:55 2014 (r261938) @@ -0,0 +1,34 @@ +/*- + * Copyright (c) 2014 Steven Lawrance <stl@koffein.net> + * 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 AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#ifndef IMX6_OCOTPVAR_H +#define IMX6_OCOTPVAR_H + +uint32_t imx6_ocotp_read_4(bus_size_t _offset); + +#endif Modified: head/sys/boot/fdt/dts/imx6.dtsi ============================================================================== --- head/sys/boot/fdt/dts/imx6.dtsi Sat Feb 15 16:22:51 2014 (r261937) +++ head/sys/boot/fdt/dts/imx6.dtsi Sat Feb 15 17:19:55 2014 (r261938) @@ -337,6 +337,11 @@ bus-width = <0x4>; status ="disabled"; }; + + ocotp0: ocotp@021bc000 { + compatible = "fsl,imx6q-ocotp"; + reg = <0x021bc000 0x4000>; + } }; }; };
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