svn commit: r261938 - in head/sys: arm/freescale/imx boot/fdt/dts
Ian Lepore
ian at FreeBSD.org
Sat Feb 15 17:20:01 UTC 2014
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 at 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 at 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 at 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 at 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 at 021bc000 {
+ compatible = "fsl,imx6q-ocotp";
+ reg = <0x021bc000 0x4000>;
+ }
};
};
};
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