imx: Move imx_iomux to arm/shared

Update #4180

6 files changed, 1 insertions, 586 deletions

diff --git a/bsps/arm/imx/headers.am b/bsps/arm/imx/headers.am
index 9863f34300..e7a2418dea 100644
--- a/bsps/arm/imx/headers.am
+++ b/bsps/arm/imx/headers.am
@@ -11,8 +11,6 @@ include_arm_freescale_imx_HEADERS += ../../../../../../bsps/arm/imx/include/arm/
 include_arm_freescale_imx_HEADERS += ../../../../../../bsps/arm/imx/include/arm/freescale/imx/imx_ecspireg.h
 include_arm_freescale_imx_HEADERS += ../../../../../../bsps/arm/imx/include/arm/freescale/imx/imx_gpcreg.h
 include_arm_freescale_imx_HEADERS += ../../../../../../bsps/arm/imx/include/arm/freescale/imx/imx_i2creg.h
-include_arm_freescale_imx_HEADERS += ../../../../../../bsps/arm/imx/include/arm/freescale/imx/imx_iomuxreg.h
-include_arm_freescale_imx_HEADERS += ../../../../../../bsps/arm/imx/include/arm/freescale/imx/imx_iomuxvar.h
 include_arm_freescale_imx_HEADERS += ../../../../../../bsps/arm/imx/include/arm/freescale/imx/imx_srcreg.h
 include_arm_freescale_imx_HEADERS += ../../../../../../bsps/arm/imx/include/arm/freescale/imx/imx_uartreg.h
 include_arm_freescale_imx_HEADERS += ../../../../../../bsps/arm/imx/include/arm/freescale/imx/imx_wdogreg.h
diff --git a/bsps/arm/imx/include/arm/freescale/imx/imx_iomuxreg.h b/bsps/arm/imx/include/arm/freescale/imx/imx_iomuxreg.h
deleted file mode 100644
index b84fde26de..0000000000
--- a/bsps/arm/imx/include/arm/freescale/imx/imx_iomuxreg.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/*-
- * Copyright (c) 2015 Oleksandr Tymoshenko <gonzo@freebsd.org>
- * 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: head/sys/arm/freescale/imx/imx_iomuxreg.h 322015 2017-08-03 14:43:41Z ian $
- */
-
-#ifndef	IMX_IOMUXREG_H
-#define	IMX_IOMUXREG_H
-
-#define	IMX_IOMUXREG_LOWEST_SET_BIT(__mask) ((((__mask) - 1) & (__mask)) ^ (__mask))
-#define	IMX_IOMUXREG_SHIFTIN(__x, __mask) ((__x) * IMX_IOMUXREG_LOWEST_SET_BIT(__mask))
-
-#define IMX_IOMUXREG_BIT(n) (1 << (n))
-#define	IMX_IOMUXREG_BITS(__m, __n)	\
-	((IMX_IOMUXREG_BIT(MAX((__m), (__n)) + 1) - 1) ^ (IMX_IOMUXREG_BIT(MIN((__m), (__n))) - 1))
-
-#define	IOMUXC_GPR0			0x00
-#define	IOMUXC_GPR1			0x04
-#define	IOMUXC_GPR2			0x08
-#define	IOMUXC_GPR3			0x0C
-#define	  IOMUXC_GPR3_HDMI_MASK		  (3 << 2)
-#define	  IOMUXC_GPR3_HDMI_IPU1_DI0	  (0 << 2)
-#define	  IOMUXC_GPR3_HDMI_IPU1_DI1	  (1 << 2)
-#define	  IOMUXC_GPR3_HDMI_IPU2_DI0	  (2 << 2)
-#define	  IOMUXC_GPR3_HDMI_IPU2_DI1	  (3 << 2)
-
-#define IOMUX_GPR13			0x34
-#define	  IOMUX_GPR13_SATA_PHY_8(n)	  IMX_IOMUXREG_SHIFTIN(n, IMX_IOMUXREG_BITS(26, 24))
-#define	  IOMUX_GPR13_SATA_PHY_7(n)	  IMX_IOMUXREG_SHIFTIN(n, IMX_IOMUXREG_BITS(23, 19))
-#define	  IOMUX_GPR13_SATA_PHY_6(n)	  IMX_IOMUXREG_SHIFTIN(n, IMX_IOMUXREG_BITS(18, 16))
-#define	  IOMUX_GPR13_SATA_SPEED(n)	  IMX_IOMUXREG_SHIFTIN(n, (1 << 15))
-#define	  IOMUX_GPR13_SATA_PHY_5(n)	  IMX_IOMUXREG_SHIFTIN(n, (1 << 14))
-#define	  IOMUX_GPR13_SATA_PHY_4(n)	  IMX_IOMUXREG_SHIFTIN(n, IMX_IOMUXREG_BITS(13, 11))
-#define	  IOMUX_GPR13_SATA_PHY_3(n)	  IMX_IOMUXREG_SHIFTIN(n, IMX_IOMUXREG_BITS(10, 7))
-#define	  IOMUX_GPR13_SATA_PHY_2(n)	  IMX_IOMUXREG_SHIFTIN(n, IMX_IOMUXREG_BITS(6, 2))
-#define	  IOMUX_GPR13_SATA_PHY_1(n)	  IMX_IOMUXREG_SHIFTIN(n, (1 << 1))
-#define	  IOMUX_GPR13_SATA_PHY_0(n)	  IMX_IOMUXREG_SHIFTIN(n, (1 << 0))
-
-#endif
diff --git a/bsps/arm/imx/include/arm/freescale/imx/imx_iomuxvar.h b/bsps/arm/imx/include/arm/freescale/imx/imx_iomuxvar.h
deleted file mode 100644
index 8050b56a84..0000000000
--- a/bsps/arm/imx/include/arm/freescale/imx/imx_iomuxvar.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*-
- * Copyright (c) 2014 Ian Lepore <ian@freebsd.org>
- * 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: head/sys/arm/freescale/imx/imx_iomuxvar.h 321938 2017-08-02 18:28:06Z ian $
- */
-
-#ifndef	IMX_IOMUXVAR_H
-#define	IMX_IOMUXVAR_H
-
-/*
- * IOMUX interface functions
- */
-void     iomux_set_function(u_int pin, u_int fn);
-void     iomux_set_pad(u_int pin, u_int cfg);
-u_int    iomux_get_pad_config(u_int pin);
-
-/*
- * The IOMUX Controller device has a small set of "general purpose registers" 
- * which control various aspects of SoC operation that really have nothing to do
- * with IO pin assignments or pad control.  These functions let other soc level
- * code manipulate these values.
- */
-uint32_t imx_iomux_gpr_get(u_int regaddr);
-void     imx_iomux_gpr_set(u_int regaddr, uint32_t val);
-void     imx_iomux_gpr_set_masked(u_int regaddr, uint32_t clrbits, uint32_t setbits);
-
-#endif
diff --git a/bsps/arm/imx/include/bsp.h b/bsps/arm/imx/include/bsp.h
index 99b7a0d1d7..8b95a79535 100644
--- a/bsps/arm/imx/include/bsp.h
+++ b/bsps/arm/imx/include/bsp.h
@@ -59,8 +59,6 @@ extern uintptr_t imx_gic_dist_base;
 
 void *imx_get_reg_of_node(const void *fdt, int node);
 
-int imx_iomux_configure_pins(const void *fdt, uint32_t phandle);
-
 rtems_vector_number imx_get_irq_of_node(
   const void *fdt,
   int node,
diff --git a/bsps/arm/imx/spi/imx-ecspi.c b/bsps/arm/imx/spi/imx-ecspi.c
index 26ba812f62..1ffc4d9798 100644
--- a/bsps/arm/imx/spi/imx-ecspi.c
+++ b/bsps/arm/imx/spi/imx-ecspi.c
@@ -15,6 +15,7 @@
 #include <bsp.h>
 #include <bsp/fdt.h>
 #include <bsp/imx-gpio.h>
+#include <bsp/imx-iomux.h>
 #include <libfdt.h>
 #include <arm/freescale/imx/imx_ccmvar.h>
 #include <arm/freescale/imx/imx_ecspireg.h>
diff --git a/bsps/arm/imx/start/imx_iomux.c b/bsps/arm/imx/start/imx_iomux.c
deleted file mode 100644
index d97e35deef..0000000000
--- a/bsps/arm/imx/start/imx_iomux.c
+++ /dev/null
@@ -1,472 +0,0 @@
-/*-
- * Copyright (c) 2014 Ian Lepore
- * 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: head/sys/arm/freescale/imx/imx_iomux.c 321938 2017-08-02 18:28:06Z ian $
- */
-
-/*
- * Pin mux and pad control driver for imx5 and imx6.
- *
- * This driver implements the fdt_pinctrl interface for configuring the gpio and
- * peripheral pins based on fdt configuration data.
- *
- * When the driver attaches, it walks the entire fdt tree and automatically
- * configures the pins for each device which has a pinctrl-0 property and whose
- * status is "okay".  In addition it implements the fdt_pinctrl_configure()
- * method which any other driver can call at any time to reconfigure its pins.
- *
- * The nature of the fsl,pins property in fdt data makes this driver's job very
- * easy.  Instead of representing each pin and pad configuration using symbolic
- * properties such as pullup-enable="true" and so on, the data simply contains
- * the addresses of the registers that control the pins, and the raw values to
- * store in those registers.
- *
- * The imx5 and imx6 SoCs also have a small number of "general purpose
- * registers" in the iomuxc device which are used to control an assortment
- * of completely unrelated aspects of SoC behavior.  This driver provides other
- * drivers with direct access to those registers via simple accessor functions.
- */
-
-#include <sys/param.h>
-#ifndef __rtems__
-#include <sys/systm.h>
-#include <sys/bus.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <sys/malloc.h>
-#include <sys/rman.h>
-
-#include <machine/bus.h>
-
-#include <dev/ofw/openfirm.h>
-#include <dev/ofw/ofw_bus.h>
-#include <dev/ofw/ofw_bus_subr.h>
-#include <dev/fdt/fdt_pinctrl.h>
-#endif /* __rtems__ */
-
-#include <arm/freescale/imx/imx_iomuxvar.h>
-#ifndef __rtems__
-#include <arm/freescale/imx/imx_machdep.h>
-#else /* __rtems__ */
-#include <bsp.h>
-#include <bsp/fdt.h>
-#include <rtems/sysinit.h>
-#include <errno.h>
-#include <libfdt.h>
-#include <stdlib.h>
-
-typedef size_t bus_size_t;
-typedef int phandle_t;
-#endif /* __rtems__ */
-
-struct iomux_softc {
-#ifndef __rtems__
-	device_t	dev;
-	struct resource	*mem_res;
-	u_int		last_gpregaddr;
-#else /* __rtems__ */
-	volatile uint32_t *regs;
-#endif /* __rtems__ */
-};
-
-#ifndef __rtems__
-static struct iomux_softc *iomux_sc;
-
-static struct ofw_compat_data compat_data[] = {
-	{"fsl,imx6dl-iomuxc",	true},
-	{"fsl,imx6q-iomuxc",	true},
-	{"fsl,imx6sl-iomuxc",	true},
-	{"fsl,imx6ul-iomuxc",	true},
-	{"fsl,imx6sx-iomuxc",	true},
-	{"fsl,imx53-iomuxc",	true},
-	{"fsl,imx51-iomuxc",	true},
-	{NULL,			false},
-};
-#else /* __rtems__ */
-static struct iomux_softc iomux_sc_instance;
-
-#define iomux_sc (&iomux_sc_instance);
-
-/* Return true if there is no status or status is "okay" or "ok". */
-static bool
-imx_fdt_node_status_okay(const void *fdt, int node)
-{
-	const void *status;
-	int len;
-
-	status = fdt_getprop(fdt, node, "status", &len);
-	if ((status == NULL) ||
-	    (strncmp(status, "okay", MIN(5, len)) == 0) ||
-	    (strncmp(status, "ok", MIN(3, len)) == 0)) {
-		return true;
-	}
-
-	return false;
-}
-
-/*
- * Walk through all subnodes and handle "pinctrl-0" if the node is enabled. This
- * does roughly the same as FreeBSDs fdt_pinctrl_configure_tree but without the
- * whole open firmware (OF*) functions.
- */
-static void
-imx_pinctrl_configure_children(const void *fdt, int parent)
-{
-	int node;
-	const uint32_t *phandle;
-	int len;
-
-	fdt_for_each_subnode(node, fdt, parent) {
-		if (imx_fdt_node_status_okay(fdt, node)) {
-			imx_pinctrl_configure_children(fdt, node);
-			phandle = fdt_getprop(fdt, node, "pinctrl-0", &len);
-			if (phandle != NULL && len == sizeof(*phandle)) {
-				imx_iomux_configure_pins(fdt,
-				    fdt32_to_cpu(*phandle));
-			}
-		}
-	}
-}
-
-static void
-imx_iomux_init(void)
-{
-	const void *fdt;
-	int node;
-	struct iomux_softc *sc;
-
-	fdt = bsp_fdt_get();
-	node = fdt_node_offset_by_compatible(fdt, -1, "fsl,imx7d-iomuxc");
-	if (node < 0) {
-		node = fdt_node_offset_by_compatible(fdt, -1,
-		    "fsl,imx6ul-iomuxc");
-	}
-	sc = iomux_sc;
-	sc->regs = imx_get_reg_of_node(fdt, node);
-
-	node = fdt_path_offset(fdt, "/");
-	imx_pinctrl_configure_children(fdt, node);
-}
-
-RTEMS_SYSINIT_ITEM(imx_iomux_init, RTEMS_SYSINIT_BSP_START,
-    RTEMS_SYSINIT_ORDER_MIDDLE);
-
-#define	OF_node_from_xref(phandle) fdt_node_offset_by_phandle(fdt, phandle)
-
-static int
-imx_iomux_getencprop_alloc(const char *fdt, int node, const char *name,
-    size_t elsz, void **buf)
-{
-	int len;
-	const uint32_t *val;
-	int i;
-	uint32_t *cell;
-
-	val = fdt_getprop(fdt, node, "fsl,pins", &len);
-	if (val == NULL || len < 0 || len % elsz != 0) {
-		return (-1);
-	}
-
-	cell = malloc((size_t)len);
-	*buf = cell;
-	if (cell == NULL) {
-		return (-1);
-	}
-
-	for (i = 0; i < len / 4; ++i) {
-		cell[i] = fdt32_to_cpu(val[i]);
-	}
-
-	return (len / (int)elsz);
-}
-
-#define	OF_getencprop_alloc(node, name, elsz, buf) \
-    imx_iomux_getencprop_alloc(fdt, node, name, elsz, buf)
-
-#define	OF_prop_free(buf) free(buf)
-#endif /* __rtems__ */
-
-/*
- * Each tuple in an fsl,pins property contains these fields.
- */
-struct pincfg {
-	uint32_t mux_reg;
-	uint32_t padconf_reg;
-	uint32_t input_reg;
-	uint32_t mux_val;
-	uint32_t input_val;
-	uint32_t padconf_val;
-};
-
-#define	PADCONF_NONE	(1U << 31)	/* Do not configure pad. */
-#define	PADCONF_SION	(1U << 30)	/* Force SION bit in mux register. */
-#define	PADMUX_SION	(1U <<  4)	/* The SION bit in the mux register. */
-
-static inline uint32_t
-RD4(struct iomux_softc *sc, bus_size_t off)
-{
-
-#ifndef __rtems__
-	return (bus_read_4(sc->mem_res, off));
-#else /* __rtems__ */
-	return (sc->regs[off / 4]);
-#endif /* __rtems__ */
-}
-
-static inline void
-WR4(struct iomux_softc *sc, bus_size_t off, uint32_t val)
-{
-
-#ifndef __rtems__
-	bus_write_4(sc->mem_res, off, val);
-#else /* __rtems__ */
-	sc->regs[off / 4] = val;
-#endif /* __rtems__ */
-}
-
-static void
-iomux_configure_input(struct iomux_softc *sc, uint32_t reg, uint32_t val)
-{
-	u_int select, mask, shift, width;
-
-	/* If register and value are zero, there is nothing to configure. */
-	if (reg == 0 && val == 0)
-		return;
-
-	/*
-	 * If the config value has 0xff in the high byte it is encoded:
-	 * 	31     23      15      7        0
-	 *      | 0xff | shift | width | select |
-	 * We need to mask out the old select value and OR in the new, using a
-	 * mask of the given width and shifting the values up by shift.
-	 */
-	if ((val & 0xff000000) == 0xff000000) {
-		select = val & 0x000000ff;
-		width = (val & 0x0000ff00) >> 8;
-		shift = (val & 0x00ff0000) >> 16;
-		mask  = ((1u << width) - 1) << shift;
-		val = (RD4(sc, reg) & ~mask) | (select << shift);
-	}
-	WR4(sc, reg, val);
-}
-
-#ifndef __rtems__
-static int
-iomux_configure_pins(device_t dev, phandle_t cfgxref)
-#else /* __rtems__ */
-int imx_iomux_configure_pins(const void *fdt, uint32_t cfgxref)
-#endif /* __rtems__ */
-{
-	struct iomux_softc *sc;
-	struct pincfg *cfgtuples, *cfg;
-	phandle_t cfgnode;
-	int i, ntuples;
-	uint32_t sion;
-
-#ifndef __rtems__
-	sc = device_get_softc(dev);
-#else /* __rtems__ */
-	sc = iomux_sc;
-#endif /* __rtems__ */
-	cfgnode = OF_node_from_xref(cfgxref);
-	ntuples = OF_getencprop_alloc(cfgnode, "fsl,pins", sizeof(*cfgtuples),
-	    (void **)&cfgtuples);
-	if (ntuples < 0)
-		return (ENOENT);
-	if (ntuples == 0)
-		return (0); /* Empty property is not an error. */
-	for (i = 0, cfg = cfgtuples; i < ntuples; i++, cfg++) {
-		sion = (cfg->padconf_val & PADCONF_SION) ? PADMUX_SION : 0;
-		WR4(sc, cfg->mux_reg, cfg->mux_val | sion);
-		iomux_configure_input(sc, cfg->input_reg, cfg->input_val);
-		if ((cfg->padconf_val & PADCONF_NONE) == 0)
-			WR4(sc, cfg->padconf_reg, cfg->padconf_val);
-#ifndef __rtems__
-		if (bootverbose) {
-			char name[32]; 
-			OF_getprop(cfgnode, "name", &name, sizeof(name));
-			printf("%16s: muxreg 0x%04x muxval 0x%02x "
-			    "inpreg 0x%04x inpval 0x%02x "
-			    "padreg 0x%04x padval 0x%08x\n",
-			    name, cfg->mux_reg, cfg->mux_val | sion,
-			    cfg->input_reg, cfg->input_val,
-			    cfg->padconf_reg, cfg->padconf_val);
-		}
-#endif /* __rtems__ */
-	}
-	OF_prop_free(cfgtuples);
-	return (0);
-}
-
-#ifndef __rtems__
-static int
-iomux_probe(device_t dev)
-{
-
-	if (!ofw_bus_status_okay(dev))
-		return (ENXIO);
-
-	if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
-		return (ENXIO);
-
-	device_set_desc(dev, "Freescale i.MX pin configuration");
-	return (BUS_PROBE_DEFAULT);
-}
-
-static int
-iomux_detach(device_t dev)
-{
-
-        /* This device is always present. */
-	return (EBUSY);
-}
-
-static int
-iomux_attach(device_t dev)
-{
-	struct iomux_softc * sc;
-	int rid;
-
-	sc = device_get_softc(dev);
-	sc->dev = dev;
-
-	switch (imx_soc_type()) {
-	case IMXSOC_51:
-		sc->last_gpregaddr = 1 * sizeof(uint32_t);
-		break;
-	case IMXSOC_53:
-		sc->last_gpregaddr = 2 * sizeof(uint32_t);
-		break;
-	case IMXSOC_6DL:
-	case IMXSOC_6S:
-	case IMXSOC_6SL:
-	case IMXSOC_6Q:
-		sc->last_gpregaddr = 13 * sizeof(uint32_t);
-		break;
-	case IMXSOC_6UL:
-		sc->last_gpregaddr = 14 * sizeof(uint32_t);
-		break;
-	default:
-		device_printf(dev, "Unknown SoC type\n");
-		return (ENXIO);
-	}
-
-	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");
-		return (ENXIO);
-	}
-
-	iomux_sc = sc;
-
-	/*
-	 * Register as a pinctrl device, and call the convenience function that
-	 * walks the entire device tree invoking FDT_PINCTRL_CONFIGURE() on any
-	 * pinctrl-0 property cells whose xref phandle refers to a configuration
-	 * that is a child node of our node in the tree.
-	 *
-	 * The pinctrl bindings documentation specifically mentions that the
-	 * pinctrl device itself may have a pinctrl-0 property which contains
-	 * static configuration to be applied at device init time.  The tree
-	 * walk will automatically handle this for us when it passes through our
-	 * node in the tree.
-	 */
-	fdt_pinctrl_register(dev, "fsl,pins");
-	fdt_pinctrl_configure_tree(dev);
-
-	return (0);
-}
-
-uint32_t
-imx_iomux_gpr_get(u_int regaddr)
-{
-	struct iomux_softc * sc;
-
-	sc = iomux_sc;
-	KASSERT(sc != NULL, ("%s called before attach", __FUNCTION__));
-	KASSERT(regaddr >= 0 && regaddr <= sc->last_gpregaddr, 
-	    ("%s bad regaddr %u, max %u", __FUNCTION__, regaddr,
-	    sc->last_gpregaddr));
-
-	return (RD4(iomux_sc, regaddr));
-}
-
-void
-imx_iomux_gpr_set(u_int regaddr, uint32_t val)
-{
-	struct iomux_softc * sc;
-
-	sc = iomux_sc;
-	KASSERT(sc != NULL, ("%s called before attach", __FUNCTION__));
-	KASSERT(regaddr >= 0 && regaddr <= sc->last_gpregaddr, 
-	    ("%s bad regaddr %u, max %u", __FUNCTION__, regaddr,
-	    sc->last_gpregaddr));
-
-	WR4(iomux_sc, regaddr, val);
-}
-
-void
-imx_iomux_gpr_set_masked(u_int regaddr, uint32_t clrbits, uint32_t setbits)
-{
-	struct iomux_softc * sc;
-	uint32_t val;
-
-	sc = iomux_sc;
-	KASSERT(sc != NULL, ("%s called before attach", __FUNCTION__));
-	KASSERT(regaddr >= 0 && regaddr <= sc->last_gpregaddr, 
-	    ("%s bad regaddr %u, max %u", __FUNCTION__, regaddr,
-	    sc->last_gpregaddr));
-
-	val = RD4(iomux_sc, regaddr * 4);
-	val = (val & ~clrbits) | setbits;
-	WR4(iomux_sc, regaddr, val);
-}
-
-static device_method_t imx_iomux_methods[] = {
-	/* Device interface */
-	DEVMETHOD(device_probe,         iomux_probe),
-	DEVMETHOD(device_attach,        iomux_attach),
-	DEVMETHOD(device_detach,        iomux_detach),
-
-        /* fdt_pinctrl interface */
-	DEVMETHOD(fdt_pinctrl_configure,iomux_configure_pins),
-
-	DEVMETHOD_END
-};
-
-static driver_t imx_iomux_driver = {
-	"imx_iomux",
-	imx_iomux_methods,
-	sizeof(struct iomux_softc),
-};
-
-static devclass_t imx_iomux_devclass;
-
-EARLY_DRIVER_MODULE(imx_iomux, simplebus, imx_iomux_driver, 
-    imx_iomux_devclass, 0, 0, BUS_PASS_CPU + BUS_PASS_ORDER_LATE);
-
-#endif /* __rtems__ */