SDHCI(4): Delete

Delete heavily modified SDHCI(4) support.  It must be re-imported from a
later FreeBSD version on demand.

4 files changed, 0 insertions, 2100 deletions

diff --git a/freebsd/sys/dev/sdhci/sdhci.c b/freebsd/sys/dev/sdhci/sdhci.c
deleted file mode 100644
index bf637c20..00000000
--- a/freebsd/sys/dev/sdhci/sdhci.c
+++ /dev/null
@@ -1,1907 +0,0 @@
-#include <machine/rtems-bsd-kernel-space.h>
-
-/*-
- * Copyright (c) 2008 Alexander Motin <mav@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 ``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 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("$FreeBSD$");
-
-#include <rtems/bsd/sys/param.h>
-#include <sys/systm.h>
-#include <sys/bus.h>
-#include <sys/conf.h>
-#include <sys/kernel.h>
-#include <rtems/bsd/sys/lock.h>
-#include <sys/module.h>
-#include <sys/mutex.h>
-#include <rtems/bsd/sys/resource.h>
-#include <sys/rman.h>
-#include <sys/sysctl.h>
-#include <sys/taskqueue.h>
-
-#include <dev/pci/pcireg.h>
-#include <dev/pci/pcivar.h>
-
-#include <machine/bus.h>
-#include <machine/resource.h>
-#include <machine/stdarg.h>
-
-#include <dev/mmc/bridge.h>
-#include <dev/mmc/mmcreg.h>
-#include <dev/mmc/mmcbrvar.h>
-
-#include <rtems/bsd/local/mmcbr_if.h>
-#ifndef __rtems__
-#include "sdhci.h"
-#else /* __rtems__ */
-#include <dev/sdhci/sdhci.h>
-#endif /* __rtems__ */
-#ifdef __rtems__
-#include <bsp.h>
-#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
-  #include <bsp/qoriq.h>
-  #include <bsp/utility.h>
-  #include <bsp/irq.h>
-  #define RTEMS_BSD_SDHCI_QUIRK_NO_BUSY_IRQ
-  #define RTEMS_BSD_SDHCI_QUIRK_32_BIT_REGS
-#endif
-#endif /* __rtems__ */
-
-#ifndef __rtems__
-#define DMA_BLOCK_SIZE	4096
-#else /* __rtems__ */
-#define DMA_BLOCK_SIZE	512
-#endif /* __rtems__ */
-#define DMA_BOUNDARY	0	/* DMA reload every 4K */
-
-/* Controller doesn't honor resets unless we touch the clock register */
-#define SDHCI_QUIRK_CLOCK_BEFORE_RESET			(1<<0)
-/* Controller really supports DMA */
-#define SDHCI_QUIRK_FORCE_DMA				(1<<1)
-/* Controller has unusable DMA engine */
-#define SDHCI_QUIRK_BROKEN_DMA				(1<<2)
-/* Controller doesn't like to be reset when there is no card inserted. */
-#define SDHCI_QUIRK_NO_CARD_NO_RESET			(1<<3)
-/* Controller has flaky internal state so reset it on each ios change */
-#define SDHCI_QUIRK_RESET_ON_IOS			(1<<4)
-/* Controller can only DMA chunk sizes that are a multiple of 32 bits */
-#define SDHCI_QUIRK_32BIT_DMA_SIZE			(1<<5)
-/* Controller needs to be reset after each request to stay stable */
-#define SDHCI_QUIRK_RESET_AFTER_REQUEST			(1<<6)
-/* Controller has an off-by-one issue with timeout value */
-#define SDHCI_QUIRK_INCR_TIMEOUT_CONTROL		(1<<7)
-/* Controller has broken read timings */
-#define SDHCI_QUIRK_BROKEN_TIMINGS			(1<<8)
-
-#ifndef __rtems__
-static const struct sdhci_device {
-	uint32_t	model;
-	uint16_t	subvendor;
-	char		*desc;
-	u_int		quirks;
-} sdhci_devices[] = {
-	{ 0x08221180, 	0xffff,	"RICOH R5C822 SD",
-	    SDHCI_QUIRK_FORCE_DMA },
-	{ 0x8034104c, 	0xffff, "TI XX21/XX11 SD",
-	    SDHCI_QUIRK_FORCE_DMA },
-	{ 0x05501524, 	0xffff, "ENE CB712 SD",
-	    SDHCI_QUIRK_BROKEN_TIMINGS },
-	{ 0x05511524, 	0xffff, "ENE CB712 SD 2",
-	    SDHCI_QUIRK_BROKEN_TIMINGS },
-	{ 0x07501524, 	0xffff, "ENE CB714 SD",
-	    SDHCI_QUIRK_RESET_ON_IOS |
-	    SDHCI_QUIRK_BROKEN_TIMINGS },
-	{ 0x07511524, 	0xffff, "ENE CB714 SD 2",
-	    SDHCI_QUIRK_RESET_ON_IOS |
-	    SDHCI_QUIRK_BROKEN_TIMINGS },
-	{ 0x410111ab, 	0xffff, "Marvell CaFe SD",
-	    SDHCI_QUIRK_INCR_TIMEOUT_CONTROL },
-	{ 0x2381197B, 	0xffff,	"JMicron JMB38X SD",
-	    SDHCI_QUIRK_32BIT_DMA_SIZE |
-	    SDHCI_QUIRK_RESET_AFTER_REQUEST },
-	{ 0,		0xffff,	NULL,
-	    0 }
-};
-#endif /* __rtems__ */
-
-struct sdhci_softc;
-
-struct sdhci_slot {
-	struct sdhci_softc	*sc;
-	device_t	dev;		/* Slot device */
-	u_char		num;		/* Slot number */
-	u_char		opt;		/* Slot options */
-#define SDHCI_HAVE_DMA		1
-	uint32_t	max_clk;	/* Max possible freq */
-	uint32_t	timeout_clk;	/* Timeout freq */
-#ifndef __rtems__
-	struct resource	*mem_res;	/* Memory resource */
-	int		mem_rid;
-#else /* __rtems__ */
-	struct resource	mem_res [1];	/* Memory resource */
-#endif /* __rtems__ */
-#ifndef __rtems__
-	bus_dma_tag_t 	dmatag;
-	bus_dmamap_t 	dmamap;
-	u_char		*dmamem;
-	bus_addr_t	paddr;		/* DMA buffer address */
-	struct task	card_task;	/* Card presence check task */
-#endif /* __rtems__ */
-	struct callout	card_callout;	/* Card insert delay callout */
-	struct mmc_host host;		/* Host parameters */
-	struct mmc_request *req;	/* Current request */
-	struct mmc_command *curcmd;	/* Current command of current request */
-	
-	uint32_t	intmask;	/* Current interrupt mask */
-	uint32_t	clock;		/* Current clock freq. */
-	size_t		offset;		/* Data buffer offset */
-	uint8_t		hostctrl;	/* Current host control register */
-	u_char		power;		/* Current power */
-	u_char		bus_busy;	/* Bus busy status */
-	u_char		cmd_done;	/* CMD command part done flag */
-	u_char		data_done;	/* DAT command part done flag */
-	u_char		flags;		/* Request execution flags */
-#define CMD_STARTED		1
-#define STOP_STARTED		2
-#define SDHCI_USE_DMA		4	/* Use DMA for this req. */
-	struct mtx	mtx;		/* Slot mutex */
-};
-
-struct sdhci_softc {
-	device_t	dev;		/* Controller device */
-	u_int		quirks;		/* Chip specific quirks */
-#ifndef __rtems__
-	struct resource *irq_res;	/* IRQ resource */
-	int 		irq_rid;
-	void 		*intrhand;	/* Interrupt handle */
-#endif /* __rtems__ */
-
-	int		num_slots;	/* Number of slots on this controller */
-	struct sdhci_slot slots[6];
-};
-
-SYSCTL_NODE(_hw, OID_AUTO, sdhci, CTLFLAG_RD, 0, "sdhci driver");
-
-int	sdhci_debug;
-TUNABLE_INT("hw.sdhci.debug", &sdhci_debug);
-SYSCTL_INT(_hw_sdhci, OID_AUTO, debug, CTLFLAG_RW, &sdhci_debug, 0, "Debug level");
-
-static inline uint8_t
-RD1(struct sdhci_slot *slot, bus_size_t off)
-{
-	bus_barrier(slot->mem_res, 0, 0xFF,
-	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
-#ifndef __rtems__
-	return bus_read_1(slot->mem_res, off);
-#else /* __rtems__ */
-	/* FIXME */
-	bus_size_t aligned_off = off & ~0x3;
-	bus_size_t shift = (off & 0x3) * 8;
-	uint32_t val = bus_read_4(slot->mem_res, aligned_off);
-	return val >> shift;
-#endif /* __rtems__ */
-}
-
-static inline void
-WR1(struct sdhci_slot *slot, bus_size_t off, uint8_t val)
-{
-	bus_barrier(slot->mem_res, 0, 0xFF,
-	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
-#ifndef __rtems__
-	bus_write_1(slot->mem_res, off, val);
-#else /* __rtems__ */
-	/* FIXME */
-	if (off != SDHCI_POWER_CONTROL) {
-		bus_size_t aligned_off = off & ~0x3;
-		bus_size_t shift = (off & 0x3) * 8;
-		uint32_t reg = bus_read_4(slot->mem_res, aligned_off);
-		reg &= ~(0xff << shift);
-		reg |= val << shift;
-		bus_write_4(slot->mem_res, aligned_off, reg);
-	}
-#endif /* __rtems__ */
-}
-
-static inline uint16_t
-RD2(struct sdhci_slot *slot, bus_size_t off)
-{
-	bus_barrier(slot->mem_res, 0, 0xFF,
-	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
-#ifndef __rtems__
-	return bus_read_2(slot->mem_res, off);
-#else /* __rtems__ */
-	/* FIXME */
-	bus_size_t aligned_off = off & ~0x3;
-	bus_size_t shift = (off & 0x2) * 8;
-	uint32_t val = bus_read_4(slot->mem_res, aligned_off);
-	return val >> shift;
-#endif /* __rtems__ */
-}
-
-static inline void
-WR2(struct sdhci_slot *slot, bus_size_t off, uint16_t val)
-{
-	bus_barrier(slot->mem_res, 0, 0xFF,
-	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
-#ifndef __rtems__
-	bus_write_2(slot->mem_res, off, val);
-#else /* __rtems__ */
-	/* FIXME */
-	bus_size_t aligned_off = off & ~0x3;
-	bus_size_t shift = (off & 0x2) * 8;
-	uint32_t reg = bus_read_4(slot->mem_res, aligned_off);
-	reg &= ~(0xffff << shift);
-	reg |= val << shift;
-	bus_write_4(slot->mem_res, aligned_off, reg);
-#endif /* __rtems__ */
-}
-
-static inline uint32_t
-RD4(struct sdhci_slot *slot, bus_size_t off)
-{
-	bus_barrier(slot->mem_res, 0, 0xFF,
-	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
-#if defined(__rtems__) && defined(LIBBSP_POWERPC_QORIQ_BSP_H)
-	uint32_t val = bus_read_4(slot->mem_res, off);
-	if (off == SDHCI_BUFFER) {
-		/* The DATPORT register use little-endian order */
-		val = CPU_swap_u32(val);
-	}
-	return val;
-#else /* __rtems__ */
-	return bus_read_4(slot->mem_res, off);
-#endif /* __rtems__ */
-}
-
-static inline void
-WR4(struct sdhci_slot *slot, bus_size_t off, uint32_t val)
-{
-	bus_barrier(slot->mem_res, 0, 0xFF,
-	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
-#if defined(__rtems__) && defined(LIBBSP_POWERPC_QORIQ_BSP_H)
-	if (off == SDHCI_BUFFER) {
-		/* The DATPORT register use little-endian order */
-		val = CPU_swap_u32(val);
-	}
-#endif /* __rtems__ */
-	bus_write_4(slot->mem_res, off, val);
-}
-
-/* bus entry points */
-static int sdhci_probe(device_t dev);
-static int sdhci_attach(device_t dev);
-static int sdhci_detach(device_t dev);
-static void sdhci_intr(void *);
-
-static void sdhci_set_clock(struct sdhci_slot *slot, uint32_t clock);
-static void sdhci_start(struct sdhci_slot *slot);
-static void sdhci_start_data(struct sdhci_slot *slot, struct mmc_data *data);
-
-static void sdhci_card_task(void *, int);
-
-/* helper routines */
-#define SDHCI_LOCK(_slot)		mtx_lock(&(_slot)->mtx)
-#define	SDHCI_UNLOCK(_slot)		mtx_unlock(&(_slot)->mtx)
-#define SDHCI_LOCK_INIT(_slot) \
-	mtx_init(&_slot->mtx, "SD slot mtx", "sdhci", MTX_DEF)
-#define SDHCI_LOCK_DESTROY(_slot)	mtx_destroy(&_slot->mtx);
-#define SDHCI_ASSERT_LOCKED(_slot)	mtx_assert(&_slot->mtx, MA_OWNED);
-#define SDHCI_ASSERT_UNLOCKED(_slot)	mtx_assert(&_slot->mtx, MA_NOTOWNED);
-
-static int
-slot_printf(struct sdhci_slot *slot, const char * fmt, ...)
-{
-	va_list ap;
-	int retval;
-
-    	retval = printf("%s-slot%d: ",
-	    device_get_nameunit(slot->sc->dev), slot->num);
-
-	va_start(ap, fmt);
-	retval += vprintf(fmt, ap);
-	va_end(ap);
-	return (retval);
-}
-
-#ifndef __rtems__
-static void
-sdhci_getaddr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
-{
-	if (error != 0) {
-		printf("getaddr: error %d\n", error);
-		return;
-	}
-	*(bus_addr_t *)arg = segs[0].ds_addr;
-}
-#endif /* __rtems__ */
-
-static void
-sdhci_dumpregs(struct sdhci_slot *slot)
-{
-	slot_printf(slot,
-	    "============== REGISTER DUMP ==============\n");
-
-	slot_printf(slot, "Sys addr: 0x%08x | Version:  0x%08x\n",
-	    RD4(slot, SDHCI_DMA_ADDRESS), RD2(slot, SDHCI_HOST_VERSION));
-	slot_printf(slot, "Blk size: 0x%08x | Blk cnt:  0x%08x\n",
-	    RD2(slot, SDHCI_BLOCK_SIZE), RD2(slot, SDHCI_BLOCK_COUNT));
-	slot_printf(slot, "Argument: 0x%08x | Trn mode: 0x%08x\n",
-	    RD4(slot, SDHCI_ARGUMENT), RD2(slot, SDHCI_TRANSFER_MODE));
-	slot_printf(slot, "Present:  0x%08x | Host ctl: 0x%08x\n",
-	    RD4(slot, SDHCI_PRESENT_STATE), RD1(slot, SDHCI_HOST_CONTROL));
-	slot_printf(slot, "Power:    0x%08x | Blk gap:  0x%08x\n",
-	    RD1(slot, SDHCI_POWER_CONTROL), RD1(slot, SDHCI_BLOCK_GAP_CONTROL));
-	slot_printf(slot, "Wake-up:  0x%08x | Clock:    0x%08x\n",
-	    RD1(slot, SDHCI_WAKE_UP_CONTROL), RD2(slot, SDHCI_CLOCK_CONTROL));
-	slot_printf(slot, "Timeout:  0x%08x | Int stat: 0x%08x\n",
-	    RD1(slot, SDHCI_TIMEOUT_CONTROL), RD4(slot, SDHCI_INT_STATUS));
-	slot_printf(slot, "Int enab: 0x%08x | Sig enab: 0x%08x\n",
-	    RD4(slot, SDHCI_INT_ENABLE), RD4(slot, SDHCI_SIGNAL_ENABLE));
-	slot_printf(slot, "AC12 err: 0x%08x | Slot int: 0x%08x\n",
-	    RD2(slot, SDHCI_ACMD12_ERR), RD2(slot, SDHCI_SLOT_INT_STATUS));
-	slot_printf(slot, "Caps:     0x%08x | Max curr: 0x%08x\n",
-	    RD4(slot, SDHCI_CAPABILITIES), RD4(slot, SDHCI_MAX_CURRENT));
-
-	slot_printf(slot,
-	    "===========================================\n");
-}
-
-static void
-sdhci_reset(struct sdhci_slot *slot, uint8_t mask)
-{
-	int timeout;
-	uint8_t res;
-
-	if (slot->sc->quirks & SDHCI_QUIRK_NO_CARD_NO_RESET) {
-		if (!(RD4(slot, SDHCI_PRESENT_STATE) &
-			SDHCI_CARD_PRESENT))
-			return;
-	}
-
-	/* Some controllers need this kick or reset won't work. */
-	if ((mask & SDHCI_RESET_ALL) == 0 &&
-	    (slot->sc->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET)) {
-		uint32_t clock;
-
-		/* This is to force an update */
-		clock = slot->clock;
-		slot->clock = 0;
-		sdhci_set_clock(slot, clock);
-	}
-
-	WR1(slot, SDHCI_SOFTWARE_RESET, mask);
-
-	if (mask & SDHCI_RESET_ALL) {
-		slot->clock = 0;
-		slot->power = 0;
-	}
-
-	/* Wait max 100 ms */
-	timeout = 100;
-	/* Controller clears the bits when it's done */
-	while ((res = RD1(slot, SDHCI_SOFTWARE_RESET)) & mask) {
-		if (timeout == 0) {
-			slot_printf(slot,
-			    "Reset 0x%x never completed - 0x%x.\n",
-			    (int)mask, (int)res);
-			sdhci_dumpregs(slot);
-			return;
-		}
-		timeout--;
-		DELAY(1000);
-	}
-
-#ifdef __rtems__
-#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
-	WR4(slot, SDHCI_SIGNAL_ENABLE, slot->intmask);
-#endif
-#endif /* __rtems__ */
-}
-
-static void
-sdhci_init(struct sdhci_slot *slot)
-{
-
-	sdhci_reset(slot, SDHCI_RESET_ALL);
-
-	/* Enable interrupts. */
-	slot->intmask = SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT |
-	    SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_INDEX |
-	    SDHCI_INT_END_BIT | SDHCI_INT_CRC | SDHCI_INT_TIMEOUT |
-#ifndef __rtems__
-	    SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT |
-#endif /* __rtems__ */
-	    SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL |
-	    SDHCI_INT_DMA_END | SDHCI_INT_DATA_END | SDHCI_INT_RESPONSE |
-	    SDHCI_INT_ACMD12ERR;
-	WR4(slot, SDHCI_INT_ENABLE, slot->intmask);
-	WR4(slot, SDHCI_SIGNAL_ENABLE, slot->intmask);
-}
-
-static void
-sdhci_set_clock(struct sdhci_slot *slot, uint32_t clock)
-{
-#ifndef __rtems__
-	uint32_t res;
-	uint16_t clk;
-	int timeout;
-#endif /* __rtems__ */
-
-	if (clock == slot->clock)
-		return;
-	slot->clock = clock;
-
-#ifndef __rtems__
-	/* Turn off the clock. */
-	WR2(slot, SDHCI_CLOCK_CONTROL, 0);
-	/* If no clock requested - left it so. */
-	if (clock == 0)
-		return;
-	/* Looking for highest freq <= clock. */
-	res = slot->max_clk;
-	for (clk = 1; clk < 256; clk <<= 1) {
-		if (res <= clock)
-			break;
-		res >>= 1;
-	}
-	/* Divider 1:1 is 0x00, 2:1 is 0x01, 256:1 is 0x80 ... */
-	clk >>= 1;
-	/* Now we have got divider, set it. */
-	clk <<= SDHCI_DIVIDER_SHIFT;
-	WR2(slot, SDHCI_CLOCK_CONTROL, clk);
-	/* Enable clock. */
-	clk |= SDHCI_CLOCK_INT_EN;
-	WR2(slot, SDHCI_CLOCK_CONTROL, clk);
-	/* Wait up to 10 ms until it stabilize. */
-	timeout = 10;
-	while (!((clk = RD2(slot, SDHCI_CLOCK_CONTROL))
-		& SDHCI_CLOCK_INT_STABLE)) {
-		if (timeout == 0) {
-			slot_printf(slot, 
-			    "Internal clock never stabilised.\n");
-			sdhci_dumpregs(slot);
-			return;
-		}
-		timeout--;
-		DELAY(1000);
-	}
-	/* Pass clock signal to the bus. */
-	clk |= SDHCI_CLOCK_CARD_EN;
-	WR2(slot, SDHCI_CLOCK_CONTROL, clk);
-#else /* __rtems__ */
-#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
-
-#define SYSCTL_CLOCK_DISABLE_MASK BSP_BMSK32(28, 31)
-#define SYSCTL_CLOCK_MASK BSP_BMSK32(16, 31)
-#define SYSCTL_SDCLKFS(val) BSP_BFLD32(val, 16, 23)
-#define SYSCTL_DVS(val) BSP_BFLD32(val, 24, 27)
-#define SYSCTL_SDCLKEN BSP_BBIT32(28)
-#define SYSCTL_PEREN BSP_BBIT32(29)
-#define SYSCTL_HCKEN BSP_BBIT32(30)
-#define SYSCTL_IPGEN BSP_BBIT32(31)
-
-	uint32_t sysctl = RD4(slot, SDHCI_CLOCK_CONTROL);
-	sysctl &= ~SYSCTL_CLOCK_DISABLE_MASK;
-	WR4(slot, SDHCI_CLOCK_CONTROL, sysctl);
-
-	if (clock != 0) {
-		uint32_t sdclkfs_2 = 2;
-		uint32_t dvs_p1 = 1;
-		uint32_t base_clock = slot->max_clk;
-
-		while (base_clock / sdclkfs_2 / 16 > clock && sdclkfs_2 < 256) {
-			sdclkfs_2 *= 2;
-		}
-
-		while (base_clock / sdclkfs_2 / dvs_p1 > clock && dvs_p1 < 16) {
-			dvs_p1++;
-		}
-
-		slot_printf(
-			slot,
-			"desired SD clock: %u, actual: %u\n",
-			clock,
-			base_clock / sdclkfs_2 / dvs_p1
-		);
-
-		sysctl &= ~SYSCTL_CLOCK_MASK;
-		sysctl |= SYSCTL_SDCLKFS(sdclkfs_2 / 2) | SYSCTL_DVS(dvs_p1 - 1) | SYSCTL_SDCLKEN | SYSCTL_PEREN | SYSCTL_HCKEN | SYSCTL_IPGEN;
-		WR4(slot, SDHCI_CLOCK_CONTROL, sysctl);
-
-		DELAY(10000);
-	}
-#else
-	panic("FIXME");
-#endif
-#endif /* __rtems__ */
-}
-
-static void
-sdhci_set_power(struct sdhci_slot *slot, u_char power)
-{
-	uint8_t pwr;
-
-	if (slot->power == power)
-		return;
-	slot->power = power;
-
-	/* Turn off the power. */
-	pwr = 0;
-	WR1(slot, SDHCI_POWER_CONTROL, pwr);
-	/* If power down requested - left it so. */
-	if (power == 0)
-		return;
-	/* Set voltage. */
-	switch (1 << power) {
-	case MMC_OCR_LOW_VOLTAGE:
-		pwr |= SDHCI_POWER_180;
-		break;
-	case MMC_OCR_290_300:
-	case MMC_OCR_300_310:
-		pwr |= SDHCI_POWER_300;
-		break;
-	case MMC_OCR_320_330:
-	case MMC_OCR_330_340:
-		pwr |= SDHCI_POWER_330;
-		break;
-	}
-	WR1(slot, SDHCI_POWER_CONTROL, pwr);
-	/* Turn on the power. */
-	pwr |= SDHCI_POWER_ON;
-	WR1(slot, SDHCI_POWER_CONTROL, pwr);
-}
-
-static void
-sdhci_read_block_pio(struct sdhci_slot *slot)
-{
-	uint32_t data;
-	char *buffer;
-	size_t left;
-
-	buffer = slot->curcmd->data->data;
-	buffer += slot->offset;
-	/* Transfer one block at a time. */
-	left = min(512, slot->curcmd->data->len - slot->offset);
-	slot->offset += left;
-
-	/* If we are too fast, broken controllers return zeroes. */
-	if (slot->sc->quirks & SDHCI_QUIRK_BROKEN_TIMINGS)
-		DELAY(10);
-	/* Handle unalligned and alligned buffer cases. */
-	if ((intptr_t)buffer & 3) {
-		while (left > 3) {
-			data = RD4(slot, SDHCI_BUFFER);
-			buffer[0] = data;
-			buffer[1] = (data >> 8);
-			buffer[2] = (data >> 16);
-			buffer[3] = (data >> 24);
-			buffer += 4;
-			left -= 4;
-		}
-	} else {
-#if defined(__rtems__) && defined(LIBBSP_POWERPC_QORIQ_BSP_H)
-		/* The DATPORT register use little-endian order */
-		uint32_t *in = (uint32_t *) buffer;
-		while (left > 3) {
-			*in = RD4(slot, SDHCI_BUFFER);
-			++in;
-			left -= 4;
-		}
-#else /* __rtems__ */
-		bus_read_multi_stream_4(slot->mem_res, SDHCI_BUFFER,
-		    (uint32_t *)buffer, left >> 2);
-		left &= 3;
-#endif /* __rtems__ */
-	}
-	/* Handle uneven size case. */
-	if (left > 0) {
-		data = RD4(slot, SDHCI_BUFFER);
-		while (left > 0) {
-			*(buffer++) = data;
-			data >>= 8;
-			left--;
-		}
-	}
-}
-
-static void
-sdhci_write_block_pio(struct sdhci_slot *slot)
-{
-	uint32_t data = 0;
-	char *buffer;
-	size_t left;
-
-	buffer = slot->curcmd->data->data;
-	buffer += slot->offset;
-	/* Transfer one block at a time. */
-	left = min(512, slot->curcmd->data->len - slot->offset);
-	slot->offset += left;
-
-	/* Handle unalligned and alligned buffer cases. */
-	if ((intptr_t)buffer & 3) {
-		while (left > 3) {
-			data = buffer[0] +
-			    (buffer[1] << 8) +
-			    (buffer[2] << 16) +
-			    (buffer[3] << 24);
-			left -= 4;
-			buffer += 4;
-			WR4(slot, SDHCI_BUFFER, data);
-		}
-	} else {
-#if defined(__rtems__) && defined(LIBBSP_POWERPC_QORIQ_BSP_H)
-		/* The DATPORT register use little-endian order */
-		uint32_t *out = (uint32_t *) buffer;
-		while (left > 3) {
-			WR4(slot, SDHCI_BUFFER, *out);
-			++out;
-			left -= 4;
-		}
-#else /* __rtems__ */
-		bus_write_multi_stream_4(slot->mem_res, SDHCI_BUFFER,
-		    (uint32_t *)buffer, left >> 2);
-		left &= 3;
-#endif /* __rtems__ */
-	}
-	/* Handle uneven size case. */
-	if (left > 0) {
-		while (left > 0) {
-			data <<= 8;
-			data += *(buffer++);
-			left--;
-		}
-		WR4(slot, SDHCI_BUFFER, data);
-	}
-}
-
-static void
-sdhci_transfer_pio(struct sdhci_slot *slot)
-{
-
-	/* Read as many blocks as possible. */
-	if (slot->curcmd->data->flags & MMC_DATA_READ) {
-		while (RD4(slot, SDHCI_PRESENT_STATE) &
-		    SDHCI_DATA_AVAILABLE) {
-			sdhci_read_block_pio(slot);
-			if (slot->offset >= slot->curcmd->data->len)
-				break;
-		}
-	} else {
-		while (RD4(slot, SDHCI_PRESENT_STATE) &
-		    SDHCI_SPACE_AVAILABLE) {
-			sdhci_write_block_pio(slot);
-			if (slot->offset >= slot->curcmd->data->len)
-				break;
-		}
-	}
-}
-
-static void 
-sdhci_card_delay(void *arg)
-{
-#ifndef __rtems__
-	struct sdhci_slot *slot = arg;
-
-	taskqueue_enqueue(taskqueue_swi_giant, &slot->card_task);
-#else /* __rtems__ */
-	sdhci_card_task(arg, 0);
-#endif /* __rtems__ */
-}
- 
-static void
-sdhci_card_task(void *arg, int pending)
-{
-	struct sdhci_slot *slot = arg;
-
-	SDHCI_LOCK(slot);
-	if (RD4(slot, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT) {
-		if (slot->dev == NULL) {
-			/* If card is present - attach mmc bus. */
-			slot->dev = device_add_child(slot->sc->dev, "mmc", -1);
-			device_set_ivars(slot->dev, slot);
-			SDHCI_UNLOCK(slot);
-			device_probe_and_attach(slot->dev);
-		} else
-			SDHCI_UNLOCK(slot);
-	} else {
-		if (slot->dev != NULL) {
-			/* If no card present - detach mmc bus. */
-			device_t d = slot->dev;
-			slot->dev = NULL;
-			SDHCI_UNLOCK(slot);
-			device_delete_child(slot->sc->dev, d);
-		} else
-			SDHCI_UNLOCK(slot);
-	}
-}
-
-static int
-sdhci_probe(device_t dev)
-{
-#ifndef __rtems__
-	uint32_t model;
-	uint16_t subvendor;
-	uint8_t class, subclass;
-	int i, result;
-	
-	model = (uint32_t)pci_get_device(dev) << 16;
-	model |= (uint32_t)pci_get_vendor(dev) & 0x0000ffff;
-	subvendor = pci_get_subvendor(dev);
-	class = pci_get_class(dev);
-	subclass = pci_get_subclass(dev);
-	
-	result = ENXIO;
-	for (i = 0; sdhci_devices[i].model != 0; i++) {
-		if (sdhci_devices[i].model == model &&
-		    (sdhci_devices[i].subvendor == 0xffff ||
-		    sdhci_devices[i].subvendor == subvendor)) {
-			device_set_desc(dev, sdhci_devices[i].desc);
-			result = BUS_PROBE_DEFAULT;
-			break;
-		}
-	}
-	if (result == ENXIO && class == PCIC_BASEPERIPH &&
-	    subclass == PCIS_BASEPERIPH_SDHC) {
-		device_set_desc(dev, "Generic SD HCI");
-		result = BUS_PROBE_GENERIC;
-	}
-	
-	return (result);
-#else /* __rtems__ */
-	return (0);
-#endif /* __rtems__ */
-}
-
-static int
-sdhci_attach(device_t dev)
-{
-	struct sdhci_softc *sc = device_get_softc(dev);
-#ifndef __rtems__
-	uint32_t model;
-	uint16_t subvendor;
-	uint8_t class, subclass, progif;
-	int err, slots, bar, i;
-#else /* __rtems__ */
-	int slots, i;
-#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
-	rtems_status_code status_code;
-#endif
-#endif /* __rtems__ */
-
-	sc->dev = dev;
-#ifndef __rtems__
-	model = (uint32_t)pci_get_device(dev) << 16;
-	model |= (uint32_t)pci_get_vendor(dev) & 0x0000ffff;
-	subvendor = pci_get_subvendor(dev);
-	class = pci_get_class(dev);
-	subclass = pci_get_subclass(dev);
-	progif = pci_get_progif(dev);
-	/* Apply chip specific quirks. */
-	for (i = 0; sdhci_devices[i].model != 0; i++) {
-		if (sdhci_devices[i].model == model &&
-		    (sdhci_devices[i].subvendor == 0xffff ||
-		    sdhci_devices[i].subvendor == subvendor)) {
-			sc->quirks = sdhci_devices[i].quirks;
-			break;
-		}
-	}
-	/* Read slots info from PCI registers. */
-	slots = pci_read_config(dev, PCI_SLOT_INFO, 1);
-	bar = PCI_SLOT_INFO_FIRST_BAR(slots);
-	slots = PCI_SLOT_INFO_SLOTS(slots);
-	if (slots > 6 || bar > 5) {
-		device_printf(dev, "Incorrect slots information (%d, %d).\n",
-		    slots, bar);
-		return (EINVAL);
-	}
-#else /* __rtems__ */
-#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
-	/* FIXME */
-	qoriq.esdhc.dcr = BSP_BBIT32(25);
-	sc->quirks = SDHCI_QUIRK_BROKEN_TIMINGS
-		| SDHCI_QUIRK_32BIT_DMA_SIZE;
-	slots = 1;
-#else
-	slots = 0;
-#endif
-#endif /* __rtems__ */
-#ifndef __rtems__
-	/* Allocate IRQ. */
-	sc->irq_rid = 0;
-	sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
-	    RF_SHAREABLE | RF_ACTIVE);
-	if (sc->irq_res == NULL) {
-		device_printf(dev, "Can't allocate IRQ\n");
-		return (ENOMEM);
-	}
-#endif /* __rtems__ */
-	/* Scan all slots. */
-	for (i = 0; i < slots; i++) {
-		struct sdhci_slot *slot = &sc->slots[sc->num_slots];
-		uint32_t caps;
-
-		SDHCI_LOCK_INIT(slot);
-		slot->sc = sc;
-		slot->num = sc->num_slots;
-#ifndef __rtems__
-		/* Allocate memory. */
-		slot->mem_rid = PCIR_BAR(bar + i);
-		slot->mem_res = bus_alloc_resource(dev,
-		    SYS_RES_MEMORY, &slot->mem_rid, 0ul, ~0ul, 0x100, RF_ACTIVE);
-		if (slot->mem_res == NULL) {
-			device_printf(dev, "Can't allocate memory\n");
-			SDHCI_LOCK_DESTROY(slot);
-			continue;
-		}
-#else /* __rtems__ */
-#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
-		slot->mem_res [0].r_bustag = 0;
-		slot->mem_res [0].r_bushandle = &qoriq.esdhc;
-#endif
-#endif /* __rtems__ */
-#ifndef __rtems__
-		/* Allocate DMA tag. */
-		err = bus_dma_tag_create(bus_get_dma_tag(dev),
-		    DMA_BLOCK_SIZE, 0, BUS_SPACE_MAXADDR_32BIT,
-		    BUS_SPACE_MAXADDR, NULL, NULL,
-		    DMA_BLOCK_SIZE, 1, DMA_BLOCK_SIZE,
-		    BUS_DMA_ALLOCNOW, NULL, NULL,
-		    &slot->dmatag);
-		if (err != 0) {
-			device_printf(dev, "Can't create DMA tag\n");
-			SDHCI_LOCK_DESTROY(slot);
-			continue;
-		}
-		/* Allocate DMA memory. */
-		err = bus_dmamem_alloc(slot->dmatag, (void **)&slot->dmamem,
-		    BUS_DMA_NOWAIT, &slot->dmamap);
-		if (err != 0) {
-			device_printf(dev, "Can't alloc DMA memory\n");
-			SDHCI_LOCK_DESTROY(slot);
-			continue;
-		}
-		/* Map the memory. */
-		err = bus_dmamap_load(slot->dmatag, slot->dmamap,
-		    (void *)slot->dmamem, DMA_BLOCK_SIZE,
-		    sdhci_getaddr, &slot->paddr, 0);
-		if (err != 0 || slot->paddr == 0) {
-			device_printf(dev, "Can't load DMA memory\n");
-			SDHCI_LOCK_DESTROY(slot);
-			continue;
-		}
-#endif /* __rtems__ */
-		/* Initialize slot. */
-		sdhci_init(slot);
-		caps = RD4(slot, SDHCI_CAPABILITIES);
-		/* Calculate base clock frequency. */
-#ifndef __rtems__
-		slot->max_clk =
-			(caps & SDHCI_CLOCK_BASE_MASK) >> SDHCI_CLOCK_BASE_SHIFT;
-		if (slot->max_clk == 0) {
-			device_printf(dev, "Hardware doesn't specify base clock "
-			    "frequency.\n");
-		}
-		slot->max_clk *= 1000000;
-#else /* __rtems__ */
-#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
-		slot->max_clk = BSP_bus_frequency / 2;
-#else
-		panic("FIXME");
-#endif
-#endif /* __rtems__ */
-		/* Calculate timeout clock frequency. */
-#ifndef __rtems__
-		slot->timeout_clk =
-			(caps & SDHCI_TIMEOUT_CLK_MASK) >> SDHCI_TIMEOUT_CLK_SHIFT;
-#else /* __rtems__ */
-#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
-		slot->timeout_clk = slot->max_clk / 1000;
-#else
-		panic("FIXME");
-#endif
-#endif /* __rtems__ */
-		if (slot->timeout_clk == 0) {
-			device_printf(dev, "Hardware doesn't specify timeout clock "
-			    "frequency.\n");
-		}
-		if (caps & SDHCI_TIMEOUT_CLK_UNIT)
-			slot->timeout_clk *= 1000;
-
-#ifndef __rtems__
-		slot->host.f_min = slot->max_clk / 256;
-#else /* __rtems__ */
-#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
-		slot->host.f_min = 400000;
-#else
-		panic("FIXME");
-#endif
-#endif /* __rtems__ */
-		slot->host.f_max = slot->max_clk;
-		slot->host.host_ocr = 0;
-		if (caps & SDHCI_CAN_VDD_330)
-		    slot->host.host_ocr |= MMC_OCR_320_330 | MMC_OCR_330_340;
-		if (caps & SDHCI_CAN_VDD_300)
-		    slot->host.host_ocr |= MMC_OCR_290_300 | MMC_OCR_300_310;
-		if (caps & SDHCI_CAN_VDD_180)
-		    slot->host.host_ocr |= MMC_OCR_LOW_VOLTAGE;
-		if (slot->host.host_ocr == 0) {
-			device_printf(dev, "Hardware doesn't report any "
-			    "support voltages.\n");
-		}
-		slot->host.caps = MMC_CAP_4_BIT_DATA;
-		if (caps & SDHCI_CAN_DO_HISPD)
-			slot->host.caps |= MMC_CAP_HSPEED;
-		/* Decide if we have usable DMA. */
-		if (caps & SDHCI_CAN_DO_DMA)
-			slot->opt |= SDHCI_HAVE_DMA;
-#ifndef __rtems__
-		if (class == PCIC_BASEPERIPH &&
-		    subclass == PCIS_BASEPERIPH_SDHC &&
-		    progif != PCI_SDHCI_IFDMA)
-			slot->opt &= ~SDHCI_HAVE_DMA;
-		if (sc->quirks & SDHCI_QUIRK_BROKEN_DMA)
-			slot->opt &= ~SDHCI_HAVE_DMA;
-		if (sc->quirks & SDHCI_QUIRK_FORCE_DMA)
-			slot->opt |= SDHCI_HAVE_DMA;
-#endif /* __rtems__ */
-
-		if (bootverbose || sdhci_debug) {
-			slot_printf(slot, "%uMHz%s 4bits%s%s%s %s\n",
-			    slot->max_clk / 1000000,
-			    (caps & SDHCI_CAN_DO_HISPD) ? " HS" : "",
-			    (caps & SDHCI_CAN_VDD_330) ? " 3.3V" : "",
-			    (caps & SDHCI_CAN_VDD_300) ? " 3.0V" : "",
-			    (caps & SDHCI_CAN_VDD_180) ? " 1.8V" : "",
-			    (slot->opt & SDHCI_HAVE_DMA) ? "DMA" : "PIO");
-			sdhci_dumpregs(slot);
-		}
-		
-#ifndef __rtems__
-		TASK_INIT(&slot->card_task, 0, sdhci_card_task, slot);
-#endif /* __rtems__ */
-		callout_init(&slot->card_callout, 1);
-		sc->num_slots++;
-	}
-	device_printf(dev, "%d slot(s) allocated\n", sc->num_slots);
-	/* Activate the interrupt */
-#ifndef __rtems__
-	err = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_MISC | INTR_MPSAFE,
-	    NULL, sdhci_intr, sc, &sc->intrhand);
-	if (err)
-		device_printf(dev, "Can't setup IRQ\n");
-	pci_enable_busmaster(dev);
-#else /* __rtems__ */
-#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
-	status_code = rtems_interrupt_server_handler_install(
-		RTEMS_ID_NONE,
-		QORIQ_IRQ_ESDHC,
-		"eSDHC",
-		RTEMS_INTERRUPT_UNIQUE,
-		sdhci_intr,
-		sc
-	);
-	BSD_ASSERT(status_code == RTEMS_SUCCESSFUL);
-#endif
-#endif /* __rtems__ */
-	/* Process cards detection. */
-	for (i = 0; i < sc->num_slots; i++) {
-		struct sdhci_slot *slot = &sc->slots[i];
-
-		sdhci_card_task(slot, 0);
-	}
-		
-	return (0);
-}
-
-static int
-sdhci_detach(device_t dev)
-{
-#ifndef __rtems__
-	struct sdhci_softc *sc = device_get_softc(dev);
-	int i;
-
-	bus_teardown_intr(dev, sc->irq_res, sc->intrhand);
-	bus_release_resource(dev, SYS_RES_IRQ,
-	    sc->irq_rid, sc->irq_res);
-
-	for (i = 0; i < sc->num_slots; i++) {
-		struct sdhci_slot *slot = &sc->slots[i];
-		device_t d;
-
-		callout_drain(&slot->card_callout);
-		taskqueue_drain(taskqueue_swi_giant, &slot->card_task);
-
-		SDHCI_LOCK(slot);
-		d = slot->dev;
-		slot->dev = NULL;
-		SDHCI_UNLOCK(slot);
-		if (d != NULL)
-			device_delete_child(dev, d);
-
-		SDHCI_LOCK(slot);
-		sdhci_reset(slot, SDHCI_RESET_ALL);
-		SDHCI_UNLOCK(slot);
-		bus_dmamap_unload(slot->dmatag, slot->dmamap);
-		bus_dmamem_free(slot->dmatag, slot->dmamem, slot->dmamap);
-		bus_dma_tag_destroy(slot->dmatag);
-		bus_release_resource(dev, SYS_RES_MEMORY,
-		    slot->mem_rid, slot->mem_res);
-		SDHCI_LOCK_DESTROY(slot);
-	}
-#else /* __rtems__ */
-	panic("FIXME");
-#endif /* __rtems__ */
-	return (0);
-}
-
-static int
-sdhci_suspend(device_t dev)
-{
-	struct sdhci_softc *sc = device_get_softc(dev);
-	int i, err;
-
-	err = bus_generic_suspend(dev);
-	if (err)
-		return (err);
-	for (i = 0; i < sc->num_slots; i++)
-		sdhci_reset(&sc->slots[i], SDHCI_RESET_ALL);
-	return (0);
-}
-
-static int
-sdhci_resume(device_t dev)
-{
-	struct sdhci_softc *sc = device_get_softc(dev);
-	int i;
-
-	for (i = 0; i < sc->num_slots; i++)
-		sdhci_init(&sc->slots[i]);
-	return (bus_generic_resume(dev));
-}
-
-static int
-sdhci_update_ios(device_t brdev, device_t reqdev)
-{
-	struct sdhci_slot *slot = device_get_ivars(reqdev);
-	struct mmc_ios *ios = &slot->host.ios;
-
-	SDHCI_LOCK(slot);
-	/* Do full reset on bus power down to clear from any state. */
-	if (ios->power_mode == power_off) {
-		WR4(slot, SDHCI_SIGNAL_ENABLE, 0);
-		sdhci_init(slot);
-	}
-	/* Configure the bus. */
-	sdhci_set_clock(slot, ios->clock);
-	sdhci_set_power(slot, (ios->power_mode == power_off)?0:ios->vdd);
-	if (ios->bus_width == bus_width_4)
-		slot->hostctrl |= SDHCI_CTRL_4BITBUS;
-	else
-		slot->hostctrl &= ~SDHCI_CTRL_4BITBUS;
-	if (ios->timing == bus_timing_hs)
-		slot->hostctrl |= SDHCI_CTRL_HISPD;
-	else
-		slot->hostctrl &= ~SDHCI_CTRL_HISPD;
-#if defined(__rtems__) && defined(LIBBSP_POWERPC_QORIQ_BSP_H)
-	slot->hostctrl &= ~BSP_MSK8(2, 5);
-	slot->hostctrl |= BSP_FLD8(0x4, 2, 5);
-#endif /* __rtems__ */
-	WR1(slot, SDHCI_HOST_CONTROL, slot->hostctrl);
-	/* Some controllers like reset after bus changes. */
-	if(slot->sc->quirks & SDHCI_QUIRK_RESET_ON_IOS)
-		sdhci_reset(slot, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
-
-	SDHCI_UNLOCK(slot);
-	return (0);
-}
-
-#if !defined(__rtems__) || !defined(RTEMS_BSD_SDHCI_QUIRK_32_BIT_REGS)
-static void
-sdhci_set_transfer_mode(struct sdhci_slot *slot,
-	struct mmc_data *data)
-#else /* __rtems__ */
-static uint16_t
-sdhci_get_transfer_mode(struct sdhci_slot *slot,
-	struct mmc_data *data)
-#endif /* __rtems__ */
-{
-	uint16_t mode;
-
-	if (data == NULL)
-#if !defined(__rtems__) || !defined(RTEMS_BSD_SDHCI_QUIRK_32_BIT_REGS)
-		return;
-#else /* __rtems__ */
-		return 0;
-#endif /* __rtems__ */
-
-#if !defined(__rtems__) || !defined(LIBBSP_POWERPC_QORIQ_BSP_H)
-	mode = SDHCI_TRNS_BLK_CNT_EN;
-	if (data->len > 512)
-		mode |= SDHCI_TRNS_MULTI;
-#else /* __rtems__ */
-	mode = 0;
-	if (data->len > 512)
-		mode |= SDHCI_TRNS_MULTI | SDHCI_TRNS_BLK_CNT_EN;
-#endif /* __rtems__ */
-	if (data->flags & MMC_DATA_READ)
-		mode |= SDHCI_TRNS_READ;
-	if (slot->req->stop)
-		mode |= SDHCI_TRNS_ACMD12;
-	if (slot->flags & SDHCI_USE_DMA)
-		mode |= SDHCI_TRNS_DMA;
-
-#if !defined(__rtems__) || !defined(RTEMS_BSD_SDHCI_QUIRK_32_BIT_REGS)
-	WR2(slot, SDHCI_TRANSFER_MODE, mode);
-#else /* __rtems__ */
-	return mode;
-#endif /* __rtems__ */
-}
-
-static void
-sdhci_start_command(struct sdhci_slot *slot, struct mmc_command *cmd)
-{
-	struct mmc_request *req = slot->req;
-	int flags, timeout;
-	uint32_t mask, state;
-
-	slot->curcmd = cmd;
-	slot->cmd_done = 0;
-
-	cmd->error = MMC_ERR_NONE;
-
-	/* This flags combination is not supported by controller. */
-	if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) {
-		slot_printf(slot, "Unsupported response type!\n");
-		cmd->error = MMC_ERR_FAILED;
-		slot->req = NULL;
-		slot->curcmd = NULL;
-		req->done(req);
-		return;
-	}
-
-	/* Read controller present state. */
-	state = RD4(slot, SDHCI_PRESENT_STATE);
-	/* Do not issue command if there is no card, clock or power.
-	 * Controller will not detect timeout without clock active. */
-	if ((state & SDHCI_CARD_PRESENT) == 0 ||
-	    slot->power == 0 ||
-	    slot->clock == 0) {
-		cmd->error = MMC_ERR_FAILED;
-		slot->req = NULL;
-		slot->curcmd = NULL;
-		req->done(req);
-		return;
-	}
-	/* Always wait for free CMD bus. */
-	mask = SDHCI_CMD_INHIBIT;
-	/* Wait for free DAT if we have data or busy signal. */
-	if (cmd->data || (cmd->flags & MMC_RSP_BUSY))
-		mask |= SDHCI_DAT_INHIBIT;
-	/* We shouldn't wait for DAT for stop commands. */
-	if (cmd == slot->req->stop)
-		mask &= ~SDHCI_DAT_INHIBIT;
-	/* Wait for bus no more then 10 ms. */
-	timeout = 10;
-	while (state & mask) {
-		if (timeout == 0) {
-			slot_printf(slot, "Controller never released "
-			    "inhibit bit(s).\n");
-			sdhci_dumpregs(slot);
-			cmd->error = MMC_ERR_FAILED;
-			slot->req = NULL;
-			slot->curcmd = NULL;
-			req->done(req);
-			return;
-		}
-		timeout--;
-		DELAY(1000);
-		state = RD4(slot, SDHCI_PRESENT_STATE);
-	}
-
-	/* Prepare command flags. */
-	if (!(cmd->flags & MMC_RSP_PRESENT))
-		flags = SDHCI_CMD_RESP_NONE;
-	else if (cmd->flags & MMC_RSP_136)
-		flags = SDHCI_CMD_RESP_LONG;
-	else if (cmd->flags & MMC_RSP_BUSY)
-		flags = SDHCI_CMD_RESP_SHORT_BUSY;
-	else
-		flags = SDHCI_CMD_RESP_SHORT;
-	if (cmd->flags & MMC_RSP_CRC)
-		flags |= SDHCI_CMD_CRC;
-	if (cmd->flags & MMC_RSP_OPCODE)
-		flags |= SDHCI_CMD_INDEX;
-	if (cmd->data)
-		flags |= SDHCI_CMD_DATA;
-	if (cmd->opcode == MMC_STOP_TRANSMISSION)
-		flags |= SDHCI_CMD_TYPE_ABORT;
-	/* Prepare data. */
-	sdhci_start_data(slot, cmd->data);
-	/* 
-	 * Interrupt aggregation: To reduce total number of interrupts
-	 * group response interrupt with data interrupt when possible.
-	 * If there going to be data interrupt, mask response one.
-	 */
-	if (slot->data_done == 0) {
-#if !defined(__rtems__) || !defined(RTEMS_BSD_SDHCI_QUIRK_NO_BUSY_IRQ)
-		WR4(slot, SDHCI_SIGNAL_ENABLE,
-		    slot->intmask &= ~SDHCI_INT_RESPONSE);
-#endif /* __rtems__ */
-	}
-	/* Set command argument. */
-	WR4(slot, SDHCI_ARGUMENT, cmd->arg);
-	/* Set data transfer mode. */
-#if !defined(__rtems__) || !defined(RTEMS_BSD_SDHCI_QUIRK_32_BIT_REGS)
-	sdhci_set_transfer_mode(slot, cmd->data);
-	/* Set command flags. */
-	WR1(slot, SDHCI_COMMAND_FLAGS, flags);
-	/* Start command. */
-	WR1(slot, SDHCI_COMMAND, cmd->opcode);
-#else /* __rtems__ */
-	uint16_t mode = sdhci_get_transfer_mode(slot, cmd->data);
-	WR4(slot, SDHCI_TRANSFER_MODE, (cmd->opcode << 24) | (flags << 16) | mode);
-#endif /* __rtems__ */
-}
-
-static void
-sdhci_finish_command(struct sdhci_slot *slot)
-{
-	int i;
-
-	slot->cmd_done = 1;
-	/* Interrupt aggregation: Restore command interrupt.
-	 * Main restore point for the case when command interrupt
-	 * happened first. */
-	WR4(slot, SDHCI_SIGNAL_ENABLE, slot->intmask |= SDHCI_INT_RESPONSE);
-	/* In case of error - reset host and return. */
-	if (slot->curcmd->error) {
-		sdhci_reset(slot, SDHCI_RESET_CMD);
-		sdhci_reset(slot, SDHCI_RESET_DATA);
-		sdhci_start(slot);
-		return;
-	}
-	/* If command has response - fetch it. */
-	if (slot->curcmd->flags & MMC_RSP_PRESENT) {
-		if (slot->curcmd->flags & MMC_RSP_136) {
-			/* CRC is stripped so we need one byte shift. */
-			uint8_t extra = 0;
-			for (i = 0; i < 4; i++) {
-				uint32_t val = RD4(slot, SDHCI_RESPONSE + i * 4);
-				slot->curcmd->resp[3 - i] = (val << 8) + extra;
-				extra = val >> 24;
-			}
-		} else
-			slot->curcmd->resp[0] = RD4(slot, SDHCI_RESPONSE);
-	}
-	/* If data ready - finish. */
-	if (slot->data_done)
-		sdhci_start(slot);
-}
-
-static void
-sdhci_start_data(struct sdhci_slot *slot, struct mmc_data *data)
-{
-	uint32_t target_timeout, current_timeout;
-	uint8_t div;
-
-#if defined(__rtems__) && defined(RTEMS_BSD_SDHCI_QUIRK_NO_BUSY_IRQ)
-	if (data == NULL) {
-#else /* __rtems__ */
-	if (data == NULL && (slot->curcmd->flags & MMC_RSP_BUSY) == 0) {
-#endif /* __rtems__ */
-		slot->data_done = 1;
-		return;
-	}
-
-	slot->data_done = 0;
-
-	/* Calculate and set data timeout.*/
-	/* XXX: We should have this from mmc layer, now assume 1 sec. */
-	target_timeout = 1000000;
-	div = 0;
-	current_timeout = (1 << 13) * 1000 / slot->timeout_clk;
-	while (current_timeout < target_timeout) {
-		div++;
-		current_timeout <<= 1;
-		if (div >= 0xF)
-			break;
-	}
-	/* Compensate for an off-by-one error in the CaFe chip.*/
-	if (slot->sc->quirks & SDHCI_QUIRK_INCR_TIMEOUT_CONTROL)
-		div++;
-	if (div >= 0xF) {
-#ifndef __rtems__
-		slot_printf(slot, "Timeout too large!\n");
-#endif /* __rtems__ */
-		div = 0xE;
-	}
-	WR1(slot, SDHCI_TIMEOUT_CONTROL, div);
-
-	if (data == NULL)
-		return;
-
-	/* Use DMA if possible. */
-	if ((slot->opt & SDHCI_HAVE_DMA))
-		slot->flags |= SDHCI_USE_DMA;
-	/* If data is small, broken DMA may return zeroes instead of data, */
-#ifndef __rtems__
-	if ((slot->sc->quirks & SDHCI_QUIRK_BROKEN_TIMINGS) &&
-	    (data->len <= 512))
-#else /* __rtems__ */
-	if ((slot->sc->quirks & SDHCI_QUIRK_BROKEN_TIMINGS) &&
-	    (data->len < 512))
-#endif /* __rtems__ */
-		slot->flags &= ~SDHCI_USE_DMA;
-	/* Some controllers require even block sizes. */
-	if ((slot->sc->quirks & SDHCI_QUIRK_32BIT_DMA_SIZE) &&
-	    ((data->len) & 0x3))
-		slot->flags &= ~SDHCI_USE_DMA;
-	/* Load DMA buffer. */
-	if (slot->flags & SDHCI_USE_DMA) {
-#ifndef __rtems__
-		if (data->flags & MMC_DATA_READ)
-			bus_dmamap_sync(slot->dmatag, slot->dmamap, BUS_DMASYNC_PREREAD);
-		else {
-			memcpy(slot->dmamem, data->data,
-			    (data->len < DMA_BLOCK_SIZE)?data->len:DMA_BLOCK_SIZE);
-			bus_dmamap_sync(slot->dmatag, slot->dmamap, BUS_DMASYNC_PREWRITE);
-		}
-		WR4(slot, SDHCI_DMA_ADDRESS, slot->paddr);
-		/* Interrupt aggregation: Mask border interrupt
-		 * for the last page and unmask else. */
-		if (data->len == DMA_BLOCK_SIZE)
-#else /* __rtems__ */
-		WR4(slot, SDHCI_DMA_ADDRESS, (uint32_t) data->data);
-		if (data->len <= DMA_BLOCK_SIZE)
-#endif /* __rtems__ */
-			slot->intmask &= ~SDHCI_INT_DMA_END;
-		else
-			slot->intmask |= SDHCI_INT_DMA_END;
-#ifndef __rtems__
-		WR4(slot, SDHCI_SIGNAL_ENABLE, slot->intmask);
-	}
-#else /* __rtems__ */
-		slot->intmask &= ~(SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL);
-	} else {
-		slot->intmask |= SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL;
-	}
-	WR4(slot, SDHCI_INT_ENABLE, slot->intmask);
-	WR4(slot, SDHCI_SIGNAL_ENABLE, slot->intmask);
-#endif /* __rtems__ */
-	/* Current data offset for both PIO and DMA. */
-	slot->offset = 0;
-	/* Set block size and request IRQ on 4K border. */
-	WR2(slot, SDHCI_BLOCK_SIZE,
-	    SDHCI_MAKE_BLKSZ(DMA_BOUNDARY, (data->len < 512)?data->len:512));
-	/* Set block count. */
-	WR2(slot, SDHCI_BLOCK_COUNT, (data->len + 511) / 512);
-}
-
-static void
-sdhci_finish_data(struct sdhci_slot *slot)
-{
-#ifndef __rtems__
-	struct mmc_data *data = slot->curcmd->data;
-#endif /* __rtems__ */
-
-	slot->data_done = 1;
-	/* Interrupt aggregation: Restore command interrupt.
-	 * Auxillary restore point for the case when data interrupt
-	 * happened first. */
-	if (!slot->cmd_done) {
-		WR4(slot, SDHCI_SIGNAL_ENABLE,
-		    slot->intmask |= SDHCI_INT_RESPONSE);
-	}
-#ifndef __rtems__
-	/* Unload rest of data from DMA buffer. */
-	if (slot->flags & SDHCI_USE_DMA) {
-		if (data->flags & MMC_DATA_READ) {
-			size_t left = data->len - slot->offset;
-			bus_dmamap_sync(slot->dmatag, slot->dmamap, BUS_DMASYNC_POSTREAD);
-			memcpy((u_char*)data->data + slot->offset, slot->dmamem,
-			    (left < DMA_BLOCK_SIZE)?left:DMA_BLOCK_SIZE);
-		} else
-			bus_dmamap_sync(slot->dmatag, slot->dmamap, BUS_DMASYNC_POSTWRITE);
-	}
-#endif /* __rtems__ */
-	/* If there was error - reset the host. */
-	if (slot->curcmd->error) {
-		sdhci_reset(slot, SDHCI_RESET_CMD);
-		sdhci_reset(slot, SDHCI_RESET_DATA);
-		sdhci_start(slot);
-		return;
-	}
-	/* If we already have command response - finish. */
-	if (slot->cmd_done)
-		sdhci_start(slot);
-}
-
-static void
-sdhci_start(struct sdhci_slot *slot)
-{
-	struct mmc_request *req;
-
-	req = slot->req;
-	if (req == NULL)
-		return;
-
-	if (!(slot->flags & CMD_STARTED)) {
-		slot->flags |= CMD_STARTED;
-		sdhci_start_command(slot, req->cmd);
-		return;
-	}
-/* 	We don't need this until using Auto-CMD12 feature
-	if (!(slot->flags & STOP_STARTED) && req->stop) {
-		slot->flags |= STOP_STARTED;
-		sdhci_start_command(slot, req->stop);
-		return;
-	}
-*/
-	if (sdhci_debug > 1)
-		slot_printf(slot, "result: %d\n", req->cmd->error);
-	if (!req->cmd->error &&
-	    (slot->sc->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST)) {
-		sdhci_reset(slot, SDHCI_RESET_CMD);
-		sdhci_reset(slot, SDHCI_RESET_DATA);
-	}
-
-	/* We must be done -- bad idea to do this while locked? */
-	slot->req = NULL;
-	slot->curcmd = NULL;
-	req->done(req);
-}
-
-static int
-sdhci_request(device_t brdev, device_t reqdev, struct mmc_request *req)
-{
-	struct sdhci_slot *slot = device_get_ivars(reqdev);
-
-	SDHCI_LOCK(slot);
-	if (slot->req != NULL) {
-		SDHCI_UNLOCK(slot);
-		return (EBUSY);
-	}
-	if (sdhci_debug > 1) {
-		slot_printf(slot, "CMD%u arg %#x flags %#x dlen %u dflags %#x\n",
-    		    req->cmd->opcode, req->cmd->arg, req->cmd->flags,
-    		    (req->cmd->data)?(u_int)req->cmd->data->len:0,
-		    (req->cmd->data)?req->cmd->data->flags:0);
-	}
-	slot->req = req;
-	slot->flags = 0;
-	sdhci_start(slot);
-	SDHCI_UNLOCK(slot);
-#ifndef __rtems__
-	if (dumping) {
-		while (slot->req != NULL) {
-			sdhci_intr(slot->sc);
-			DELAY(10);
-		}
-	}
-#endif /* __rtems__ */
-	return (0);
-}
-
-static int
-sdhci_get_ro(device_t brdev, device_t reqdev)
-{
-	struct sdhci_slot *slot = device_get_ivars(reqdev);
-	uint32_t val;
-
-	SDHCI_LOCK(slot);
-	val = RD4(slot, SDHCI_PRESENT_STATE);
-	SDHCI_UNLOCK(slot);
-	return (!(val & SDHCI_WRITE_PROTECT));
-}
-
-static int
-sdhci_acquire_host(device_t brdev, device_t reqdev)
-{
-#ifndef __rtems__
-	struct sdhci_slot *slot = device_get_ivars(reqdev);
-	int err = 0;
-
-	SDHCI_LOCK(slot);
-	while (slot->bus_busy)
-		msleep(slot, &slot->mtx, 0, "sdhciah", 0);
-	slot->bus_busy++;
-	/* Activate led. */
-	WR1(slot, SDHCI_HOST_CONTROL, slot->hostctrl |= SDHCI_CTRL_LED);
-	SDHCI_UNLOCK(slot);
-	return (err);
-#else /* __rtems__ */
-	return (0);
-#endif /* __rtems__ */
-}
-
-static int
-sdhci_release_host(device_t brdev, device_t reqdev)
-{
-#ifndef __rtems__
-	struct sdhci_slot *slot = device_get_ivars(reqdev);
-
-	SDHCI_LOCK(slot);
-	/* Deactivate led. */
-	WR1(slot, SDHCI_HOST_CONTROL, slot->hostctrl &= ~SDHCI_CTRL_LED);
-	slot->bus_busy--;
-	SDHCI_UNLOCK(slot);
-	wakeup(slot);
-#endif /* __rtems__ */
-	return (0);
-}
-
-static void
-sdhci_cmd_irq(struct sdhci_slot *slot, uint32_t intmask)
-{
-
-	if (!slot->curcmd) {
-		slot_printf(slot, "Got command interrupt 0x%08x, but "
-		    "there is no active command.\n", intmask);
-		sdhci_dumpregs(slot);
-		return;
-	}
-	if (intmask & SDHCI_INT_TIMEOUT)
-		slot->curcmd->error = MMC_ERR_TIMEOUT;
-	else if (intmask & SDHCI_INT_CRC)
-		slot->curcmd->error = MMC_ERR_BADCRC;
-	else if (intmask & (SDHCI_INT_END_BIT | SDHCI_INT_INDEX))
-		slot->curcmd->error = MMC_ERR_FIFO;
-
-	sdhci_finish_command(slot);
-}
-
-static void
-sdhci_data_irq(struct sdhci_slot *slot, uint32_t intmask)
-{
-
-	if (!slot->curcmd) {
-		slot_printf(slot, "Got data interrupt 0x%08x, but "
-		    "there is no active command.\n", intmask);
-		sdhci_dumpregs(slot);
-		return;
-	}
-	if (slot->curcmd->data == NULL &&
-	    (slot->curcmd->flags & MMC_RSP_BUSY) == 0) {
-		slot_printf(slot, "Got data interrupt 0x%08x, but "
-		    "there is no active data operation.\n",
-		    intmask);
-		sdhci_dumpregs(slot);
-		return;
-	}
-	if (intmask & SDHCI_INT_DATA_TIMEOUT)
-		slot->curcmd->error = MMC_ERR_TIMEOUT;
-	else if (intmask & (SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_END_BIT))
-		slot->curcmd->error = MMC_ERR_BADCRC;
-	if (slot->curcmd->data == NULL &&
-	    (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL |
-	    SDHCI_INT_DMA_END))) {
-		slot_printf(slot, "Got data interrupt 0x%08x, but "
-		    "there is busy-only command.\n", intmask);
-		sdhci_dumpregs(slot);
-		slot->curcmd->error = MMC_ERR_INVALID;
-	}
-	if (slot->curcmd->error) {
-		/* No need to continue after any error. */
-		sdhci_finish_data(slot);
-		return;
-	}
-
-	/* Handle PIO interrupt. */
-	if (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL))
-		sdhci_transfer_pio(slot);
-	/* Handle DMA border. */
-	if (intmask & SDHCI_INT_DMA_END) {
-		struct mmc_data *data = slot->curcmd->data;
-		size_t left;
-
-		/* Unload DMA buffer... */
-		left = data->len - slot->offset;
-#ifndef __rtems__
-		if (data->flags & MMC_DATA_READ) {
-			bus_dmamap_sync(slot->dmatag, slot->dmamap,
-			    BUS_DMASYNC_POSTREAD);
-			memcpy((u_char*)data->data + slot->offset, slot->dmamem,
-			    (left < DMA_BLOCK_SIZE)?left:DMA_BLOCK_SIZE);
-		} else {
-			bus_dmamap_sync(slot->dmatag, slot->dmamap,
-			    BUS_DMASYNC_POSTWRITE);
-		}
-#endif /* __rtems__ */
-		/* ... and reload it again. */
-		slot->offset += DMA_BLOCK_SIZE;
-		left = data->len - slot->offset;
-#ifndef __rtems__
-		if (data->flags & MMC_DATA_READ) {
-			bus_dmamap_sync(slot->dmatag, slot->dmamap,
-			    BUS_DMASYNC_PREREAD);
-		} else {
-			memcpy(slot->dmamem, (u_char*)data->data + slot->offset,
-			    (left < DMA_BLOCK_SIZE)?left:DMA_BLOCK_SIZE);
-			bus_dmamap_sync(slot->dmatag, slot->dmamap,
-			    BUS_DMASYNC_PREWRITE);
-		}
-#endif /* __rtems__ */
-		/* Interrupt aggregation: Mask border interrupt
-		 * for the last page. */
-		if (left == DMA_BLOCK_SIZE) {
-			slot->intmask &= ~SDHCI_INT_DMA_END;
-			WR4(slot, SDHCI_SIGNAL_ENABLE, slot->intmask);
-		}
-		/* Restart DMA. */
-#ifndef __rtems__
-		WR4(slot, SDHCI_DMA_ADDRESS, slot->paddr);
-#else /* __rtems__ */
-		WR4(slot, SDHCI_DMA_ADDRESS, (uint32_t) ((u_char*)data->data + slot->offset));
-#endif /* __rtems__ */
-	}
-	/* We have got all data. */
-	if (intmask & SDHCI_INT_DATA_END)
-		sdhci_finish_data(slot);
-}
-
-static void
-sdhci_acmd_irq(struct sdhci_slot *slot)
-{
-	uint16_t err;
-	
-	err = RD4(slot, SDHCI_ACMD12_ERR);
-	if (!slot->curcmd) {
-		slot_printf(slot, "Got AutoCMD12 error 0x%04x, but "
-		    "there is no active command.\n", err);
-		sdhci_dumpregs(slot);
-		return;
-	}
-	slot_printf(slot, "Got AutoCMD12 error 0x%04x\n", err);
-	sdhci_reset(slot, SDHCI_RESET_CMD);
-}
-
-static void
-sdhci_intr(void *arg)
-{
-	struct sdhci_softc *sc = (struct sdhci_softc *)arg;
-	int i;
-
-	for (i = 0; i < sc->num_slots; i++) {
-		struct sdhci_slot *slot = &sc->slots[i];
-		uint32_t intmask;
-		
-		SDHCI_LOCK(slot);
-		/* Read slot interrupt status. */
-		intmask = RD4(slot, SDHCI_INT_STATUS);
-		if (intmask == 0 || intmask == 0xffffffff) {
-			SDHCI_UNLOCK(slot);
-			continue;
-		}
-		if (sdhci_debug > 2)
-			slot_printf(slot, "Interrupt %#x\n", intmask);
-
-		/* Handle card presence interrupts. */
-		if (intmask & (SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE)) {
-			WR4(slot, SDHCI_INT_STATUS, intmask & 
-			    (SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE));
-
-			if (intmask & SDHCI_INT_CARD_REMOVE) {
-				if (bootverbose || sdhci_debug)
-					slot_printf(slot, "Card removed\n");
-				callout_stop(&slot->card_callout);
-#ifndef __rtems__
-				taskqueue_enqueue(taskqueue_swi_giant,
-				    &slot->card_task);
-#endif /* __rtems__ */
-			}
-			if (intmask & SDHCI_INT_CARD_INSERT) {
-				if (bootverbose || sdhci_debug)
-					slot_printf(slot, "Card inserted\n");
-				callout_reset(&slot->card_callout, hz / 2,
-				    sdhci_card_delay, slot);
-			}
-			intmask &= ~(SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE);
-		}
-		/* Handle command interrupts. */
-		if (intmask & SDHCI_INT_CMD_MASK) {
-			WR4(slot, SDHCI_INT_STATUS, intmask & SDHCI_INT_CMD_MASK);
-			sdhci_cmd_irq(slot, intmask & SDHCI_INT_CMD_MASK);
-		}
-		/* Handle data interrupts. */
-		if (intmask & SDHCI_INT_DATA_MASK) {
-			WR4(slot, SDHCI_INT_STATUS, intmask & SDHCI_INT_DATA_MASK);
-			sdhci_data_irq(slot, intmask & SDHCI_INT_DATA_MASK);
-		}
-		/* Handle AutoCMD12 error interrupt. */
-		if (intmask & SDHCI_INT_ACMD12ERR) {
-			WR4(slot, SDHCI_INT_STATUS, SDHCI_INT_ACMD12ERR);
-			sdhci_acmd_irq(slot);
-		}
-		intmask &= ~(SDHCI_INT_CMD_MASK | SDHCI_INT_DATA_MASK);
-		intmask &= ~SDHCI_INT_ACMD12ERR;
-		intmask &= ~SDHCI_INT_ERROR;
-		/* Handle bus power interrupt. */
-		if (intmask & SDHCI_INT_BUS_POWER) {
-			WR4(slot, SDHCI_INT_STATUS, SDHCI_INT_BUS_POWER);
-			slot_printf(slot,
-			    "Card is consuming too much power!\n");
-			intmask &= ~SDHCI_INT_BUS_POWER;
-		}
-		/* The rest is unknown. */
-		if (intmask) {
-			WR4(slot, SDHCI_INT_STATUS, intmask);
-			slot_printf(slot, "Unexpected interrupt 0x%08x.\n",
-			    intmask);
-			sdhci_dumpregs(slot);
-		}
-		
-		SDHCI_UNLOCK(slot);
-	}
-}
-
-static int
-sdhci_read_ivar(device_t bus, device_t child, int which, uintptr_t *result)
-{
-	struct sdhci_slot *slot = device_get_ivars(child);
-
-	switch (which) {
-	default:
-		return (EINVAL);
-	case MMCBR_IVAR_BUS_MODE:
-		*(int *)result = slot->host.ios.bus_mode;
-		break;
-	case MMCBR_IVAR_BUS_WIDTH:
-		*(int *)result = slot->host.ios.bus_width;
-		break;
-	case MMCBR_IVAR_CHIP_SELECT:
-		*(int *)result = slot->host.ios.chip_select;
-		break;
-	case MMCBR_IVAR_CLOCK:
-		*(int *)result = slot->host.ios.clock;
-		break;
-	case MMCBR_IVAR_F_MIN:
-		*(int *)result = slot->host.f_min;
-		break;
-	case MMCBR_IVAR_F_MAX:
-		*(int *)result = slot->host.f_max;
-		break;
-	case MMCBR_IVAR_HOST_OCR:
-		*(int *)result = slot->host.host_ocr;
-		break;
-	case MMCBR_IVAR_MODE:
-		*(int *)result = slot->host.mode;
-		break;
-	case MMCBR_IVAR_OCR:
-		*(int *)result = slot->host.ocr;
-		break;
-	case MMCBR_IVAR_POWER_MODE:
-		*(int *)result = slot->host.ios.power_mode;
-		break;
-	case MMCBR_IVAR_VDD:
-		*(int *)result = slot->host.ios.vdd;
-		break;
-	case MMCBR_IVAR_CAPS:
-		*(int *)result = slot->host.caps;
-		break;
-	case MMCBR_IVAR_TIMING:
-		*(int *)result = slot->host.ios.timing;
-		break;
-	case MMCBR_IVAR_MAX_DATA:
-		*(int *)result = 65535;
-		break;
-	}
-	return (0);
-}
-
-static int
-sdhci_write_ivar(device_t bus, device_t child, int which, uintptr_t value)
-{
-	struct sdhci_slot *slot = device_get_ivars(child);
-
-	switch (which) {
-	default:
-		return (EINVAL);
-	case MMCBR_IVAR_BUS_MODE:
-		slot->host.ios.bus_mode = value;
-		break;
-	case MMCBR_IVAR_BUS_WIDTH:
-		slot->host.ios.bus_width = value;
-		break;
-	case MMCBR_IVAR_CHIP_SELECT:
-		slot->host.ios.chip_select = value;
-		break;
-	case MMCBR_IVAR_CLOCK:
-		if (value > 0) {
-#ifndef __rtems__
-			uint32_t clock = slot->max_clk;
-			int i;
-
-			for (i = 0; i < 8; i++) {
-				if (clock <= value)
-					break;
-				clock >>= 1;
-			}
-			slot->host.ios.clock = clock;
-#else /* __rtems__ */
-			slot->host.ios.clock = value;
-#endif /* __rtems__ */
-		} else
-			slot->host.ios.clock = 0;
-		break;
-	case MMCBR_IVAR_MODE:
-		slot->host.mode = value;
-		break;
-	case MMCBR_IVAR_OCR:
-		slot->host.ocr = value;
-		break;
-	case MMCBR_IVAR_POWER_MODE:
-		slot->host.ios.power_mode = value;
-		break;
-	case MMCBR_IVAR_VDD:
-		slot->host.ios.vdd = value;
-		break;
-	case MMCBR_IVAR_TIMING:
-		slot->host.ios.timing = value;
-		break;
-	case MMCBR_IVAR_CAPS:
-	case MMCBR_IVAR_HOST_OCR:
-	case MMCBR_IVAR_F_MIN:
-	case MMCBR_IVAR_F_MAX:
-	case MMCBR_IVAR_MAX_DATA:
-		return (EINVAL);
-	}
-	return (0);
-}
-
-static device_method_t sdhci_methods[] = {
-	/* device_if */
-	DEVMETHOD(device_probe, sdhci_probe),
-	DEVMETHOD(device_attach, sdhci_attach),
-	DEVMETHOD(device_detach, sdhci_detach),
-	DEVMETHOD(device_suspend, sdhci_suspend),
-	DEVMETHOD(device_resume, sdhci_resume),
-
-	/* Bus interface */
-	DEVMETHOD(bus_read_ivar,	sdhci_read_ivar),
-	DEVMETHOD(bus_write_ivar,	sdhci_write_ivar),
-
-	/* mmcbr_if */
-	DEVMETHOD(mmcbr_update_ios, sdhci_update_ios),
-	DEVMETHOD(mmcbr_request, sdhci_request),
-	DEVMETHOD(mmcbr_get_ro, sdhci_get_ro),
-	DEVMETHOD(mmcbr_acquire_host, sdhci_acquire_host),
-	DEVMETHOD(mmcbr_release_host, sdhci_release_host),
-
-	{0, 0},
-};
-
-static driver_t sdhci_driver = {
-	"sdhci",
-	sdhci_methods,
-	sizeof(struct sdhci_softc),
-};
-static devclass_t sdhci_devclass;
-
-
-#ifndef __rtems__
-DRIVER_MODULE(sdhci, pci, sdhci_driver, sdhci_devclass, 0, 0);
-#else /* __rtems__ */
-DRIVER_MODULE(sdhci, nexus, sdhci_driver, sdhci_devclass, 0, 0);
-#endif /* __rtems__ */
diff --git a/freebsd/sys/dev/sdhci/sdhci.h b/freebsd/sys/dev/sdhci/sdhci.h
deleted file mode 100644
index a0ad1335..00000000
--- a/freebsd/sys/dev/sdhci/sdhci.h
+++ /dev/null
@@ -1,190 +0,0 @@
-/*-
- * Copyright (c) 2008 Alexander Motin <mav@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 ``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 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.
- *
- * $FreeBSD$
- */
-
-/*
- * PCI registers
- */
-
-#define PCI_SDHCI_IFPIO			0x00
-#define PCI_SDHCI_IFDMA			0x01
-#define PCI_SDHCI_IFVENDOR		0x02
-
-#define PCI_SLOT_INFO			0x40	/* 8 bits */
-#define  PCI_SLOT_INFO_SLOTS(x)		(((x >> 4) & 7) + 1)
-#define  PCI_SLOT_INFO_FIRST_BAR(x)	((x) & 7)
-
-/*
- * Controller registers
- */
-
-#define SDHCI_DMA_ADDRESS	0x00
-
-#define SDHCI_BLOCK_SIZE	0x04
-#define  SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 12) | (blksz & 0xFFF))
-
-#define SDHCI_BLOCK_COUNT	0x06
-
-#define SDHCI_ARGUMENT		0x08
-
-#define SDHCI_TRANSFER_MODE	0x0C
-#define  SDHCI_TRNS_DMA		0x01
-#define  SDHCI_TRNS_BLK_CNT_EN	0x02
-#define  SDHCI_TRNS_ACMD12	0x04
-#define  SDHCI_TRNS_READ	0x10
-#define  SDHCI_TRNS_MULTI	0x20
-
-#define SDHCI_COMMAND_FLAGS	0x0E
-#define  SDHCI_CMD_RESP_NONE	0x00
-#define  SDHCI_CMD_RESP_LONG	0x01
-#define  SDHCI_CMD_RESP_SHORT	0x02
-#define  SDHCI_CMD_RESP_SHORT_BUSY 0x03
-#define  SDHCI_CMD_RESP_MASK	0x03
-#define  SDHCI_CMD_CRC		0x08
-#define  SDHCI_CMD_INDEX	0x10
-#define  SDHCI_CMD_DATA		0x20
-#define  SDHCI_CMD_TYPE_NORMAL	0x00
-#define  SDHCI_CMD_TYPE_SUSPEND	0x40
-#define  SDHCI_CMD_TYPE_RESUME	0x80
-#define  SDHCI_CMD_TYPE_ABORT	0xc0
-#define  SDHCI_CMD_TYPE_MASK	0xc0
-
-#define SDHCI_COMMAND		0x0F
-
-#define SDHCI_RESPONSE		0x10
-
-#define SDHCI_BUFFER		0x20
-
-#define SDHCI_PRESENT_STATE	0x24
-#define  SDHCI_CMD_INHIBIT	0x00000001
-#define  SDHCI_DAT_INHIBIT	0x00000002
-#define  SDHCI_DAT_ACTIVE	0x00000004
-#define  SDHCI_DOING_WRITE	0x00000100
-#define  SDHCI_DOING_READ	0x00000200
-#define  SDHCI_SPACE_AVAILABLE	0x00000400
-#define  SDHCI_DATA_AVAILABLE	0x00000800
-#define  SDHCI_CARD_PRESENT	0x00010000
-#define  SDHCI_CARD_STABLE	0x00020000
-#define  SDHCI_CARD_PIN		0x00040000
-#define  SDHCI_WRITE_PROTECT	0x00080000
-#define  SDHCI_STATE_DAT	0x00700000
-#define  SDHCI_STATE_CMD	0x00800000
-
-#define SDHCI_HOST_CONTROL 	0x28
-#define  SDHCI_CTRL_LED		0x01
-#define  SDHCI_CTRL_4BITBUS	0x02
-#define  SDHCI_CTRL_HISPD	0x04
-#define  SDHCI_CTRL_SDMA	0x08
-#define  SDHCI_CTRL_ADMA2	0x10
-#define  SDHCI_CTRL_ADMA264	0x18
-#define  SDHCI_CTRL_CARD_DET	0x40
-#define  SDHCI_CTRL_FORCE_CARD	0x80
-
-#define SDHCI_POWER_CONTROL	0x29
-#define  SDHCI_POWER_ON		0x01
-#define  SDHCI_POWER_180	0x0A
-#define  SDHCI_POWER_300	0x0C
-#define  SDHCI_POWER_330	0x0E
-
-#define SDHCI_BLOCK_GAP_CONTROL	0x2A
-
-#define SDHCI_WAKE_UP_CONTROL	0x2B
-
-#define SDHCI_CLOCK_CONTROL	0x2C
-#define  SDHCI_DIVIDER_SHIFT	8
-#define  SDHCI_CLOCK_CARD_EN	0x0004
-#define  SDHCI_CLOCK_INT_STABLE	0x0002
-#define  SDHCI_CLOCK_INT_EN	0x0001
-
-#define SDHCI_TIMEOUT_CONTROL	0x2E
-
-#define SDHCI_SOFTWARE_RESET	0x2F
-#define  SDHCI_RESET_ALL	0x01
-#define  SDHCI_RESET_CMD	0x02
-#define  SDHCI_RESET_DATA	0x04
-
-#define SDHCI_INT_STATUS	0x30
-#define SDHCI_INT_ENABLE	0x34
-#define SDHCI_SIGNAL_ENABLE	0x38
-#define  SDHCI_INT_RESPONSE	0x00000001
-#define  SDHCI_INT_DATA_END	0x00000002
-#define  SDHCI_INT_BLOCK_GAP	0x00000004
-#define  SDHCI_INT_DMA_END	0x00000008
-#define  SDHCI_INT_SPACE_AVAIL	0x00000010
-#define  SDHCI_INT_DATA_AVAIL	0x00000020
-#define  SDHCI_INT_CARD_INSERT	0x00000040
-#define  SDHCI_INT_CARD_REMOVE	0x00000080
-#define  SDHCI_INT_CARD_INT	0x00000100
-#define  SDHCI_INT_ERROR	0x00008000
-#define  SDHCI_INT_TIMEOUT	0x00010000
-#define  SDHCI_INT_CRC		0x00020000
-#define  SDHCI_INT_END_BIT	0x00040000
-#define  SDHCI_INT_INDEX	0x00080000
-#define  SDHCI_INT_DATA_TIMEOUT	0x00100000
-#define  SDHCI_INT_DATA_CRC	0x00200000
-#define  SDHCI_INT_DATA_END_BIT	0x00400000
-#define  SDHCI_INT_BUS_POWER	0x00800000
-#define  SDHCI_INT_ACMD12ERR	0x01000000
-#define  SDHCI_INT_ADMAERR	0x02000000
-
-#define  SDHCI_INT_NORMAL_MASK	0x00007FFF
-#define  SDHCI_INT_ERROR_MASK	0xFFFF8000
-
-#define  SDHCI_INT_CMD_MASK	(SDHCI_INT_RESPONSE | SDHCI_INT_TIMEOUT | \
-		SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX)
-#define  SDHCI_INT_DATA_MASK	(SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \
-		SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \
-		SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \
-		SDHCI_INT_DATA_END_BIT)
-
-#define SDHCI_ACMD12_ERR	0x3C
-
-#define SDHCI_CAPABILITIES	0x40
-#define  SDHCI_TIMEOUT_CLK_MASK	0x0000003F
-#define  SDHCI_TIMEOUT_CLK_SHIFT 0
-#define  SDHCI_TIMEOUT_CLK_UNIT	0x00000080
-#define  SDHCI_CLOCK_BASE_MASK	0x00003F00
-#define  SDHCI_CLOCK_BASE_SHIFT	8
-#define  SDHCI_MAX_BLOCK_MASK	0x00030000
-#define  SDHCI_MAX_BLOCK_SHIFT  16
-#define  SDHCI_CAN_DO_ADMA2	0x00080000
-#define  SDHCI_CAN_DO_HISPD	0x00200000
-#define  SDHCI_CAN_DO_DMA	0x00400000
-#define  SDHCI_CAN_DO_SUSPEND	0x00800000
-#define  SDHCI_CAN_VDD_330	0x01000000
-#define  SDHCI_CAN_VDD_300	0x02000000
-#define  SDHCI_CAN_VDD_180	0x04000000
-#define  SDHCI_CAN_DO_64BIT	0x10000000
-
-#define SDHCI_MAX_CURRENT	0x48
-
-#define SDHCI_SLOT_INT_STATUS	0xFC
-
-#define SDHCI_HOST_VERSION	0xFE
-#define  SDHCI_VENDOR_VER_MASK	0xFF00
-#define  SDHCI_VENDOR_VER_SHIFT	8
-#define  SDHCI_SPEC_VER_MASK	0x00FF
-#define  SDHCI_SPEC_VER_SHIFT	0
diff --git a/libbsd.py b/libbsd.py
index e0caf926..a8cbd339 100755
--- a/libbsd.py
+++ b/libbsd.py
@@ -372,14 +372,12 @@ def mmc(mm):
             'sys/dev/mmc/mmcbrvar.h',
             'sys/dev/mmc/mmcreg.h',
             'sys/dev/mmc/mmcvar.h',
-            'sys/dev/sdhci/sdhci.h',
         ]
     )
     mod.addKernelSpaceSourceFiles(
         [
             'sys/dev/mmc/mmc.c',
             'sys/dev/mmc/mmcsd.c',
-            'sys/dev/sdhci/sdhci.c',
         ],
         mm.generator['source']()
     )
diff --git a/libbsd_waf.py b/libbsd_waf.py
index 1f9616e4..e1d4e905 100644
--- a/libbsd_waf.py
+++ b/libbsd_waf.py
@@ -775,7 +775,6 @@ def build(bld):
               'freebsd/sys/dev/pci/pci_user.c',
               'freebsd/sys/dev/random/harvest.c',
               'freebsd/sys/dev/re/if_re.c',
-              'freebsd/sys/dev/sdhci/sdhci.c',
               'freebsd/sys/dev/smc/if_smc.c',
               'freebsd/sys/dev/tsec/if_tsec.c',
               'freebsd/sys/dev/usb/controller/dwc_otg.c',