mpc512x: add ifm ac14xx board

Add new mpc5121e based ac14xx board and a new pinmux config
function for setting individual pinmux bit groups. This
function is used in ac14xx board code.

Signed-off-by: Anatolij Gustschin <agust@denx.de>

2 files changed, 651 insertions, 0 deletions

diff --git a/board/ifm/ac14xx/Makefile b/board/ifm/ac14xx/Makefile
new file mode 100644
index 00000000000..9a76f32af57
--- /dev/null
+++ b/board/ifm/ac14xx/Makefile
@@ -0,0 +1,34 @@
+#
+# (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS-y	:= $(BOARD).o
+
+COBJS	:= $(COBJS-y)
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/ifm/ac14xx/ac14xx.c b/board/ifm/ac14xx/ac14xx.c
new file mode 100644
index 00000000000..74425912d62
--- /dev/null
+++ b/board/ifm/ac14xx/ac14xx.c
@@ -0,0 +1,617 @@
+/*
+ * (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
+ * (C) Copyright 2009 Dave Srl www.dave.eu
+ * (C) Copyright 2010 ifm ecomatic GmbH
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#include <common.h>
+#include <asm/bitops.h>
+#include <command.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/mpc512x.h>
+#include <fdt_support.h>
+#ifdef CONFIG_MISC_INIT_R
+#include <i2c.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static void gpio_configure(void)
+{
+	immap_t *im;
+	gpio512x_t *gpioregs;
+
+	im = (immap_t *) CONFIG_SYS_IMMR;
+	gpioregs = &im->gpio;
+	out_be32(&gpioregs->gpodr, 0x00290000); /* open drain */
+	out_be32(&gpioregs->gpdat, 0x80001040); /* data (when output) */
+
+	/*
+	 * out_be32(&gpioregs->gpdir, 0xC2293020);
+	 * workaround for a hardware affect: configure direction in pieces,
+	 * setting all outputs at once drops the reset line too low and
+	 * makes us lose the MII connection (breaks ethernet for us)
+	 */
+	out_be32(&gpioregs->gpdir, 0x02003060); /* direction */
+	setbits_be32(&gpioregs->gpdir, 0x00200000); /* += reset asi */
+	udelay(10);
+	setbits_be32(&gpioregs->gpdir, 0x00080000); /* += reset safety */
+	udelay(10);
+	setbits_be32(&gpioregs->gpdir, 0x00010000); /* += reset comm */
+	udelay(10);
+	setbits_be32(&gpioregs->gpdir, 0xC0000000); /* += backlight, KB sel */
+
+	/* to turn from red to yellow when U-Boot runs */
+	setbits_be32(&gpioregs->gpdat, 0x00002020);
+	out_be32(&gpioregs->gpimr, 0x00000000); /* interrupt mask */
+	out_be32(&gpioregs->gpicr1, 0x00000004); /* interrupt sense part 1 */
+	out_be32(&gpioregs->gpicr2, 0x00A80000); /* interrupt sense part 2 */
+	out_be32(&gpioregs->gpier, 0xFFFFFFFF); /* interrupt events, clear */
+}
+
+/* the physical location of the pins */
+#define GPIOKEY_ROW_BITMASK	0x40000000
+#define GPIOKEY_ROW_UPPER	0
+#define GPIOKEY_ROW_LOWER	1
+
+#define GPIOKEY_COL0_BITMASK	0x20000000
+#define GPIOKEY_COL1_BITMASK	0x10000000
+#define GPIOKEY_COL2_BITMASK	0x08000000
+
+/* the logical presentation of pressed keys */
+#define GPIOKEY_BIT_FNLEFT	(1 << 5)
+#define GPIOKEY_BIT_FNRIGHT	(1 << 4)
+#define GPIOKEY_BIT_DIRUP	(1 << 3)
+#define GPIOKEY_BIT_DIRLEFT	(1 << 2)
+#define GPIOKEY_BIT_DIRRIGHT	(1 << 1)
+#define GPIOKEY_BIT_DIRDOWN	(1 << 0)
+
+/* the hotkey combination which starts recovery */
+#define GPIOKEY_BITS_RECOVERY	(GPIOKEY_BIT_FNLEFT | GPIOKEY_BIT_DIRUP | \
+				 GPIOKEY_BIT_DIRDOWN)
+
+static void gpio_selectrow(gpio512x_t *gpioregs, u32 row)
+{
+
+	if (row)
+		setbits_be32(&gpioregs->gpdat, GPIOKEY_ROW_BITMASK);
+	else
+		clrbits_be32(&gpioregs->gpdat, GPIOKEY_ROW_BITMASK);
+	udelay(10);
+}
+
+static u32 gpio_querykbd(void)
+{
+	immap_t *im;
+	gpio512x_t *gpioregs;
+	u32 keybits;
+	u32 input;
+
+	im = (immap_t *)CONFIG_SYS_IMMR;
+	gpioregs = &im->gpio;
+	keybits = 0;
+
+	/* query upper row */
+	gpio_selectrow(gpioregs, GPIOKEY_ROW_UPPER);
+	input = in_be32(&gpioregs->gpdat);
+	if ((input & GPIOKEY_COL0_BITMASK) == 0)
+		keybits |= GPIOKEY_BIT_FNLEFT;
+	if ((input & GPIOKEY_COL1_BITMASK) == 0)
+		keybits |= GPIOKEY_BIT_DIRUP;
+	if ((input & GPIOKEY_COL2_BITMASK) == 0)
+		keybits |= GPIOKEY_BIT_FNRIGHT;
+
+	/* query lower row */
+	gpio_selectrow(gpioregs, GPIOKEY_ROW_LOWER);
+	input = in_be32(&gpioregs->gpdat);
+	if ((input & GPIOKEY_COL0_BITMASK) == 0)
+		keybits |= GPIOKEY_BIT_DIRLEFT;
+	if ((input & GPIOKEY_COL1_BITMASK) == 0)
+		keybits |= GPIOKEY_BIT_DIRRIGHT;
+	if ((input & GPIOKEY_COL2_BITMASK) == 0)
+		keybits |= GPIOKEY_BIT_DIRDOWN;
+
+	/* return bit pattern for keys */
+	return keybits;
+}
+
+/* excerpt from the recovery's hw_info.h */
+
+static int eeprom_diag = 1;
+
+struct __attribute__ ((__packed__)) eeprom_layout {
+	char	magic[3];	/** 'ifm' */
+	u8	len[2];		/** content length without magic/len fields */
+	u8	version[3];	/** structure version */
+	u8	type;		/** type of PCB */
+	u8	reserved[0x37];	/** padding up to offset 0x40 */
+	u8	macaddress[6];	/** ethernet MAC (for the mainboard) @0x40 */
+};
+
+#define HW_COMP_MAINCPU 2
+
+static struct eeprom_layout eeprom_content;
+static int eeprom_was_read;	/* has_been_read */
+static int eeprom_is_valid;
+static int eeprom_version;
+
+#define get_eeprom_field_int(name) ({ \
+	int value; \
+	int idx; \
+	value = 0; \
+	for (idx = 0; idx < sizeof(name); idx++) { \
+		value <<= 8; \
+		value |= name[idx]; \
+	} \
+	value; \
+})
+
+static int read_eeprom(void)
+{
+	int eeprom_datalen;
+	int ret;
+
+	if (eeprom_was_read)
+		return 0;
+
+	eeprom_is_valid = 0;
+	ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0,
+			CONFIG_SYS_I2C_EEPROM_ADDR_LEN,
+			(uchar *)&eeprom_content, sizeof(eeprom_content));
+	if (eeprom_diag) {
+		printf("DIAG: %s() read rc[%d], size[%d]\n",
+			__func__, ret, sizeof(eeprom_content));
+	}
+
+	if (ret != 0)
+		return -1;
+
+	eeprom_was_read = 1;
+
+	/*
+	 * check validity of EEPROM content
+	 * (check version, length, optionally checksum)
+	 */
+	eeprom_is_valid = 1;
+	eeprom_datalen = get_eeprom_field_int(eeprom_content.len);
+	eeprom_version = get_eeprom_field_int(eeprom_content.version);
+
+	if (eeprom_diag) {
+		printf("DIAG: %s() magic[%c%c%c] len[%d] ver[%d] type[%d]\n",
+			__func__, eeprom_content.magic[0],
+			eeprom_content.magic[1], eeprom_content.magic[2],
+			eeprom_datalen, eeprom_version, eeprom_content.type);
+	}
+	if (strncmp(eeprom_content.magic, "ifm", strlen("ifm")) != 0)
+		eeprom_is_valid = 0;
+	if (eeprom_datalen < sizeof(struct eeprom_layout) - 5)
+		eeprom_is_valid = 0;
+	if ((eeprom_version != 1) && (eeprom_version != 2))
+		eeprom_is_valid = 0;
+	if (eeprom_content.type != HW_COMP_MAINCPU)
+		eeprom_is_valid = 0;
+
+	if (eeprom_diag)
+		printf("DIAG: %s() valid[%d]\n", __func__, eeprom_is_valid);
+
+	return ret;
+}
+
+int mac_read_from_eeprom(void)
+{
+	const u8 *mac;
+
+	if (read_eeprom()) {
+		printf("I2C EEPROM read failed.\n");
+		return -1;
+	}
+
+	if (!eeprom_is_valid) {
+		printf("I2C EEPROM content not valid\n");
+		return -1;
+	}
+
+	mac = NULL;
+	switch (eeprom_version) {
+	case 1:
+	case 2:
+		mac = (const u8 *)&eeprom_content.macaddress;
+		break;
+	}
+
+	if (mac && is_valid_ether_addr(mac)) {
+		eth_setenv_enetaddr("ethaddr", mac);
+		printf("DIAG: %s() MAC value [%s]\n",
+			__func__, getenv("ethaddr"));
+	}
+
+	return 0;
+}
+
+/*
+ * BEWARE!
+ * this board uses DDR1(!) Micron SDRAM, *NOT* the DDR2
+ * which the ADS, Aria or PDM360NG boards are using
+ * (the steps outlined here refer to the Micron datasheet)
+ */
+u32 sdram_init_seq[] = {
+	/* item 6, at least one NOP after CKE went high */
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	/* item 7, precharge all; item 8, tRP (20ns) */
+	CONFIG_SYS_DDRCMD_PCHG_ALL,
+	CONFIG_SYS_DDRCMD_NOP,
+	/* item 9, extended mode register; item 10, tMRD 10ns) */
+	CONFIG_SYS_MICRON_EMODE | CONFIG_SYS_MICRON_EMODE_PARAM,
+	CONFIG_SYS_DDRCMD_NOP,
+	/*
+	 * item 11, (base) mode register _with_ reset DLL;
+	 * item 12, tMRD (10ns)
+	 */
+	CONFIG_SYS_MICRON_BMODE | CONFIG_SYS_MICRON_BMODE_RSTDLL |
+	CONFIG_SYS_MICRON_BMODE_PARAM,
+	CONFIG_SYS_DDRCMD_NOP,
+	/* item 13, precharge all; item 14, tRP (20ns) */
+	CONFIG_SYS_DDRCMD_PCHG_ALL,
+	CONFIG_SYS_DDRCMD_NOP,
+	/*
+	 * item 15, auto refresh (i.e. refresh with CKE held high);
+	 * item 16, tRFC (70ns)
+	 */
+	CONFIG_SYS_DDRCMD_RFSH,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	/*
+	 * item 17, auto refresh (i.e. refresh with CKE held high);
+	 * item 18, tRFC (70ns)
+	 */
+	CONFIG_SYS_DDRCMD_RFSH,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	CONFIG_SYS_DDRCMD_NOP,
+	/* item 19, optional, unassert DLL reset; item 20, tMRD (20ns) */
+	CONFIG_SYS_MICRON_BMODE | CONFIG_SYS_MICRON_BMODE_PARAM,
+	CONFIG_SYS_DDRCMD_NOP,
+	/*
+	 * item 21, "actually done", but make sure 200 DRAM clock cycles
+	 * have passed after DLL reset before READ requests are issued
+	 * (200 cycles at 160MHz -> 1.25 usec)
+	 */
+	/* EMPTY, optional, we don't do it */
+};
+
+phys_size_t initdram(int board_type)
+{
+	return fixed_sdram(NULL, sdram_init_seq, ARRAY_SIZE(sdram_init_seq));
+}
+
+int misc_init_r(void)
+{
+	u32 keys;
+	char *s;
+	int want_recovery;
+
+	/* we use bus I2C-0 for the on-board eeprom */
+	i2c_set_bus_num(0);
+
+	/* setup GPIO directions and initial values */
+	gpio_configure();
+
+	/*
+	 * check the GPIO keyboard,
+	 * enforced start of the recovery when
+	 * - the appropriate keys were pressed
+	 * - a previous installation was aborted or has failed
+	 * - "some" external software told us to
+	 */
+	want_recovery = 0;
+	keys = gpio_querykbd();
+	printf("GPIO keyboard status [0x%08X]\n", keys);
+	/* XXX insist in the _exact_ combination? */
+	if ((keys & GPIOKEY_BITS_RECOVERY) == GPIOKEY_BITS_RECOVERY) {
+		printf("GPIO keyboard requested RECOVERY\n");
+		/* XXX TODO
+		 * refine the logic to detect the first keypress, and
+		 * wait to recheck IF it was the recovery combination?
+		 */
+		want_recovery = 1;
+	}
+	s = getenv("install_in_progress");
+	if ((s != NULL) && (*s != '\0')) {
+		printf("previous installation aborted, running RECOVERY\n");
+		want_recovery = 1;
+	}
+	s = getenv("install_failed");
+	if ((s != NULL) && (*s != '\0')) {
+		printf("previous installation FAILED, running RECOVERY\n");
+		want_recovery = 1;
+	}
+	s = getenv("want_recovery");
+	if ((s != NULL) && (*s != '\0')) {
+		printf("running RECOVERY according to the request\n");
+		want_recovery = 1;
+	}
+
+	if (want_recovery)
+		setenv("bootcmd", "run recovery");
+
+	/*
+	 * boot the recovery system without waiting; boot the
+	 * production system without waiting by default, only
+	 * insert a pause (to provide a chance to get a prompt)
+	 * when GPIO keys were pressed during power on
+	 */
+	if (want_recovery)
+		setenv("bootdelay", "0");
+	else if (!keys)
+		setenv("bootdelay", "0");
+	else
+		setenv("bootdelay", "2");
+
+	/* get the ethernet MAC from I2C EEPROM */
+	mac_read_from_eeprom();
+
+	return 0;
+}
+
+/* setup specific IO pad configuration */
+static  iopin_t ioregs_init[] = {
+	{	/* LPC CS3 */
+		offsetof(struct ioctrl512x, io_control_nfc_ce0), 1,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(1) | IO_PIN_DS(2),
+	},
+	{	/* LPC CS1 */
+		offsetof(struct ioctrl512x, io_control_lpc_cs1), 1,
+		IO_PIN_OVER_DRVSTR,
+		IO_PIN_DS(2),
+	},
+	{	/* LPC CS2 */
+		offsetof(struct ioctrl512x, io_control_lpc_cs2), 1,
+		IO_PIN_OVER_DRVSTR,
+		IO_PIN_DS(2),
+	},
+	{	/* LPC CS4, CS5 */
+		offsetof(struct ioctrl512x, io_control_pata_ce1), 2,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(1) | IO_PIN_DS(2),
+	},
+	{	/* SDHC CLK, CMD, D0, D1, D2, D3 */
+		offsetof(struct ioctrl512x, io_control_pata_ior), 6,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(1) | IO_PIN_DS(2),
+	},
+	{	/* GPIO keyboard */
+		offsetof(struct ioctrl512x, io_control_pci_ad30), 4,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO DN1 PF, LCD power, DN2 PF */
+		offsetof(struct ioctrl512x, io_control_pci_ad26), 3,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO reset AS-i */
+		offsetof(struct ioctrl512x, io_control_pci_ad21), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO reset safety */
+		offsetof(struct ioctrl512x, io_control_pci_ad19), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO reset netX */
+		offsetof(struct ioctrl512x, io_control_pci_ad16), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO ma2 en */
+		offsetof(struct ioctrl512x, io_control_pci_ad15), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO SD CD, SD WP */
+		offsetof(struct ioctrl512x, io_control_pci_ad08), 2,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* FEC RX DV */
+		offsetof(struct ioctrl512x, io_control_pci_ad06), 1,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(2) | IO_PIN_DS(2),
+	},
+	{	/* GPIO AS-i prog, AS-i done, LCD backlight */
+		offsetof(struct ioctrl512x, io_control_pci_ad05), 3,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO AS-i wdg */
+		offsetof(struct ioctrl512x, io_control_pci_req2), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO safety wdg */
+		offsetof(struct ioctrl512x, io_control_pci_req1), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO netX wdg */
+		offsetof(struct ioctrl512x, io_control_pci_req0), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO IRQ powerfail */
+		offsetof(struct ioctrl512x, io_control_pci_inta), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO AS-i PWRD */
+		offsetof(struct ioctrl512x, io_control_pci_frame), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO LED0, LED1 */
+		offsetof(struct ioctrl512x, io_control_pci_idsel), 2,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* GPIO IRQ AS-i 1, IRQ AS-i 2, IRQ safety */
+		offsetof(struct ioctrl512x, io_control_pci_irdy), 3,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/* DIU clk */
+		offsetof(struct ioctrl512x, io_control_spdif_txclk), 1,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(2) | IO_PIN_DS(2),
+	},
+	{	/* FEC TX ER, CRS */
+		offsetof(struct ioctrl512x, io_control_spdif_tx), 2,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(1) | IO_PIN_DS(2),
+	},
+	{	/* GPIO/GPT */ /* to *NOT* have the EXT IRQ0 float */
+		offsetof(struct ioctrl512x, io_control_irq0), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	{	/*
+		 * FEC col, tx en, tx clk, txd 0-3, mdc, rx er,
+		 * rdx 3-0, mdio, rx clk
+		 */
+		offsetof(struct ioctrl512x, io_control_psc0_0), 15,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(1) | IO_PIN_DS(2),
+	},
+	/* optional: make sure PSC3 remains the serial console */
+	{	/* LPC CS6 */
+		offsetof(struct ioctrl512x, io_control_psc3_4), 1,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(1) | IO_PIN_DS(2),
+	},
+	/* make sure PSC4 remains available for SPI,
+	    *BUT* PSC4_1 is a GPIO kind of SS! */
+	{	/* enforce drive strength on the SPI pin */
+		offsetof(struct ioctrl512x, io_control_psc4_0), 5,
+		IO_PIN_OVER_DRVSTR,
+		IO_PIN_DS(2),
+	},
+	{
+		offsetof(struct ioctrl512x, io_control_psc4_1), 1,
+		IO_PIN_OVER_FMUX,
+		IO_PIN_FMUX(3),
+	},
+	/* optional: make sure PSC5 remains available for SPI */
+	{	/* enforce drive strength on the SPI pin */
+		offsetof(struct ioctrl512x, io_control_psc5_0), 5,
+		IO_PIN_OVER_DRVSTR,
+		IO_PIN_DS(1),
+	},
+	{	/* LPC TSIZ1 */
+		offsetof(struct ioctrl512x, io_control_psc6_0), 1,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(1) | IO_PIN_DS(2),
+	},
+	{	/* DIU hsync */
+		offsetof(struct ioctrl512x, io_control_psc6_1), 1,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(2) | IO_PIN_DS(1),
+	},
+	{	/* DIU vsync */
+		offsetof(struct ioctrl512x, io_control_psc6_4), 1,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(2) | IO_PIN_DS(1),
+	},
+	{	/* PSC7, part of DIU RGB */
+		offsetof(struct ioctrl512x, io_control_psc7_0), 2,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(2) | IO_PIN_DS(1),
+	},
+	{	/* PSC7, safety UART */
+		offsetof(struct ioctrl512x, io_control_psc7_2), 2,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(0) | IO_PIN_DS(1),
+	},
+	{	/* DIU (part of) RGB[] */
+		offsetof(struct ioctrl512x, io_control_psc8_3), 16,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(2) | IO_PIN_DS(1),
+	},
+	{	/* DIU data enable */
+		offsetof(struct ioctrl512x, io_control_psc11_4), 1,
+		IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
+		IO_PIN_FMUX(2) | IO_PIN_DS(1),
+	},
+	/* reduce LPB drive strength for improved EMI */
+	{	/* LPC OE, LPC RW */
+		offsetof(struct ioctrl512x, io_control_lpc_oe), 2,
+		IO_PIN_OVER_DRVSTR,
+		IO_PIN_DS(2),
+	},
+	{	/* LPC AX03 through LPC AD00 */
+		offsetof(struct ioctrl512x, io_control_lpc_ax03), 36,
+		IO_PIN_OVER_DRVSTR,
+		IO_PIN_DS(2),
+	},
+	{	/* LPC CS5 */
+		offsetof(struct ioctrl512x, io_control_pata_ce2), 1,
+		IO_PIN_OVER_DRVSTR,
+		IO_PIN_DS(2),
+	},
+	{	/* SDHC CLK */
+		offsetof(struct ioctrl512x, io_control_nfc_wp), 1,
+		IO_PIN_OVER_DRVSTR,
+		IO_PIN_DS(2),
+	},
+	{	/* SDHC DATA */
+		offsetof(struct ioctrl512x, io_control_nfc_ale), 4,
+		IO_PIN_OVER_DRVSTR,
+		IO_PIN_DS(2),
+	},
+};
+
+int checkboard(void)
+{
+	puts("Board: ifm AC14xx\n");
+
+	/* initialize function mux & slew rate IO inter alia on IO Pins  */
+	iopin_initialize_bits(ioregs_init, ARRAY_SIZE(ioregs_init));
+
+	return 0;
+}
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+	ft_cpu_setup(blob, bd);
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */