ata: remove bf54x driver

The blackfin architecture is getting removed, so this driver
is obsolete as well.

Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

3 files changed, 0 insertions, 1713 deletions

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index a7120d621154..4582fa27cf37 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -549,15 +549,6 @@ config PATA_ATP867X
 
 	  If unsure, say N.
 
-config PATA_BF54X
-	tristate "Blackfin 54x ATAPI support"
-	depends on BF542 || BF548 || BF549
-	help
-	  This option enables support for the built-in ATAPI controller on
-	  Blackfin 54x family chips.
-
-	  If unsure, say N.
-
 config PATA_BK3710
 	tristate "Palmchip BK3710 PATA support"
 	depends on ARCH_DAVINCI
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index f1f5a3fbc777..6dae8c985e8e 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -53,7 +53,6 @@ obj-$(CONFIG_PATA_AMD)		+= pata_amd.o
 obj-$(CONFIG_PATA_ARTOP)	+= pata_artop.o
 obj-$(CONFIG_PATA_ATIIXP)	+= pata_atiixp.o
 obj-$(CONFIG_PATA_ATP867X)	+= pata_atp867x.o
-obj-$(CONFIG_PATA_BF54X)	+= pata_bf54x.o
 obj-$(CONFIG_PATA_BK3710)	+= pata_bk3710.o
 obj-$(CONFIG_PATA_CMD64X)	+= pata_cmd64x.o
 obj-$(CONFIG_PATA_CS5520)	+= pata_cs5520.o
diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c
deleted file mode 100644
index 0e55a8da2748..000000000000
--- a/drivers/ata/pata_bf54x.c
+++ /dev/null
@@ -1,1703 +0,0 @@
-/*
- * File:         drivers/ata/pata_bf54x.c
- * Author:       Sonic Zhang <sonic.zhang@analog.com>
- *
- * Created:
- * Description:  PATA Driver for blackfin 54x
- *
- * Modified:
- *               Copyright 2007 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/blkdev.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <scsi/scsi_host.h>
-#include <linux/libata.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-#include <asm/dma.h>
-#include <asm/portmux.h>
-
-#define DRV_NAME		"pata-bf54x"
-#define DRV_VERSION		"0.9"
-
-#define ATA_REG_CTRL		0x0E
-#define ATA_REG_ALTSTATUS	ATA_REG_CTRL
-
-/* These are the offset of the controller's registers */
-#define ATAPI_OFFSET_CONTROL		0x00
-#define ATAPI_OFFSET_STATUS		0x04
-#define ATAPI_OFFSET_DEV_ADDR		0x08
-#define ATAPI_OFFSET_DEV_TXBUF		0x0c
-#define ATAPI_OFFSET_DEV_RXBUF		0x10
-#define ATAPI_OFFSET_INT_MASK		0x14
-#define ATAPI_OFFSET_INT_STATUS		0x18
-#define ATAPI_OFFSET_XFER_LEN		0x1c
-#define ATAPI_OFFSET_LINE_STATUS	0x20
-#define ATAPI_OFFSET_SM_STATE		0x24
-#define ATAPI_OFFSET_TERMINATE		0x28
-#define ATAPI_OFFSET_PIO_TFRCNT		0x2c
-#define ATAPI_OFFSET_DMA_TFRCNT		0x30
-#define ATAPI_OFFSET_UMAIN_TFRCNT	0x34
-#define ATAPI_OFFSET_UDMAOUT_TFRCNT	0x38
-#define ATAPI_OFFSET_REG_TIM_0		0x40
-#define ATAPI_OFFSET_PIO_TIM_0		0x44
-#define ATAPI_OFFSET_PIO_TIM_1		0x48
-#define ATAPI_OFFSET_MULTI_TIM_0	0x50
-#define ATAPI_OFFSET_MULTI_TIM_1	0x54
-#define ATAPI_OFFSET_MULTI_TIM_2	0x58
-#define ATAPI_OFFSET_ULTRA_TIM_0	0x60
-#define ATAPI_OFFSET_ULTRA_TIM_1	0x64
-#define ATAPI_OFFSET_ULTRA_TIM_2	0x68
-#define ATAPI_OFFSET_ULTRA_TIM_3	0x6c
-
-
-#define ATAPI_GET_CONTROL(base)\
-	bfin_read16(base + ATAPI_OFFSET_CONTROL)
-#define ATAPI_SET_CONTROL(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_CONTROL, val)
-#define ATAPI_GET_STATUS(base)\
-	bfin_read16(base + ATAPI_OFFSET_STATUS)
-#define ATAPI_GET_DEV_ADDR(base)\
-	bfin_read16(base + ATAPI_OFFSET_DEV_ADDR)
-#define ATAPI_SET_DEV_ADDR(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_DEV_ADDR, val)
-#define ATAPI_GET_DEV_TXBUF(base)\
-	bfin_read16(base + ATAPI_OFFSET_DEV_TXBUF)
-#define ATAPI_SET_DEV_TXBUF(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_DEV_TXBUF, val)
-#define ATAPI_GET_DEV_RXBUF(base)\
-	bfin_read16(base + ATAPI_OFFSET_DEV_RXBUF)
-#define ATAPI_SET_DEV_RXBUF(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_DEV_RXBUF, val)
-#define ATAPI_GET_INT_MASK(base)\
-	bfin_read16(base + ATAPI_OFFSET_INT_MASK)
-#define ATAPI_SET_INT_MASK(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_INT_MASK, val)
-#define ATAPI_GET_INT_STATUS(base)\
-	bfin_read16(base + ATAPI_OFFSET_INT_STATUS)
-#define ATAPI_SET_INT_STATUS(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_INT_STATUS, val)
-#define ATAPI_GET_XFER_LEN(base)\
-	bfin_read16(base + ATAPI_OFFSET_XFER_LEN)
-#define ATAPI_SET_XFER_LEN(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_XFER_LEN, val)
-#define ATAPI_GET_LINE_STATUS(base)\
-	bfin_read16(base + ATAPI_OFFSET_LINE_STATUS)
-#define ATAPI_GET_SM_STATE(base)\
-	bfin_read16(base + ATAPI_OFFSET_SM_STATE)
-#define ATAPI_GET_TERMINATE(base)\
-	bfin_read16(base + ATAPI_OFFSET_TERMINATE)
-#define ATAPI_SET_TERMINATE(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_TERMINATE, val)
-#define ATAPI_GET_PIO_TFRCNT(base)\
-	bfin_read16(base + ATAPI_OFFSET_PIO_TFRCNT)
-#define ATAPI_GET_DMA_TFRCNT(base)\
-	bfin_read16(base + ATAPI_OFFSET_DMA_TFRCNT)
-#define ATAPI_GET_UMAIN_TFRCNT(base)\
-	bfin_read16(base + ATAPI_OFFSET_UMAIN_TFRCNT)
-#define ATAPI_GET_UDMAOUT_TFRCNT(base)\
-	bfin_read16(base + ATAPI_OFFSET_UDMAOUT_TFRCNT)
-#define ATAPI_GET_REG_TIM_0(base)\
-	bfin_read16(base + ATAPI_OFFSET_REG_TIM_0)
-#define ATAPI_SET_REG_TIM_0(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_REG_TIM_0, val)
-#define ATAPI_GET_PIO_TIM_0(base)\
-	bfin_read16(base + ATAPI_OFFSET_PIO_TIM_0)
-#define ATAPI_SET_PIO_TIM_0(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_PIO_TIM_0, val)
-#define ATAPI_GET_PIO_TIM_1(base)\
-	bfin_read16(base + ATAPI_OFFSET_PIO_TIM_1)
-#define ATAPI_SET_PIO_TIM_1(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_PIO_TIM_1, val)
-#define ATAPI_GET_MULTI_TIM_0(base)\
-	bfin_read16(base + ATAPI_OFFSET_MULTI_TIM_0)
-#define ATAPI_SET_MULTI_TIM_0(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_MULTI_TIM_0, val)
-#define ATAPI_GET_MULTI_TIM_1(base)\
-	bfin_read16(base + ATAPI_OFFSET_MULTI_TIM_1)
-#define ATAPI_SET_MULTI_TIM_1(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_MULTI_TIM_1, val)
-#define ATAPI_GET_MULTI_TIM_2(base)\
-	bfin_read16(base + ATAPI_OFFSET_MULTI_TIM_2)
-#define ATAPI_SET_MULTI_TIM_2(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_MULTI_TIM_2, val)
-#define ATAPI_GET_ULTRA_TIM_0(base)\
-	bfin_read16(base + ATAPI_OFFSET_ULTRA_TIM_0)
-#define ATAPI_SET_ULTRA_TIM_0(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_ULTRA_TIM_0, val)
-#define ATAPI_GET_ULTRA_TIM_1(base)\
-	bfin_read16(base + ATAPI_OFFSET_ULTRA_TIM_1)
-#define ATAPI_SET_ULTRA_TIM_1(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_ULTRA_TIM_1, val)
-#define ATAPI_GET_ULTRA_TIM_2(base)\
-	bfin_read16(base + ATAPI_OFFSET_ULTRA_TIM_2)
-#define ATAPI_SET_ULTRA_TIM_2(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_ULTRA_TIM_2, val)
-#define ATAPI_GET_ULTRA_TIM_3(base)\
-	bfin_read16(base + ATAPI_OFFSET_ULTRA_TIM_3)
-#define ATAPI_SET_ULTRA_TIM_3(base, val)\
-	bfin_write16(base + ATAPI_OFFSET_ULTRA_TIM_3, val)
-
-/**
- * PIO Mode - Frequency compatibility
- */
-/* mode: 0         1         2         3         4 */
-static const u32 pio_fsclk[] =
-{ 33333333, 33333333, 33333333, 33333333, 33333333 };
-
-/**
- * MDMA Mode - Frequency compatibility
- */
-/*               mode:      0         1         2        */
-static const u32 mdma_fsclk[] = { 33333333, 33333333, 33333333 };
-
-/**
- * UDMA Mode - Frequency compatibility
- *
- * UDMA5 - 100 MB/s   - SCLK  = 133 MHz
- * UDMA4 - 66 MB/s    - SCLK >=  80 MHz
- * UDMA3 - 44.4 MB/s  - SCLK >=  50 MHz
- * UDMA2 - 33 MB/s    - SCLK >=  40 MHz
- */
-/* mode: 0         1         2         3         4          5 */
-static const u32 udma_fsclk[] =
-{ 33333333, 33333333, 40000000, 50000000, 80000000, 133333333 };
-
-/**
- * Register transfer timing table
- */
-/*               mode:       0    1    2    3    4    */
-/* Cycle Time                     */
-static const u32 reg_t0min[]   = { 600, 383, 330, 180, 120 };
-/* DIOR/DIOW to end cycle         */
-static const u32 reg_t2min[]   = { 290, 290, 290, 70,  25  };
-/* DIOR/DIOW asserted pulse width */
-static const u32 reg_teocmin[] = { 290, 290, 290, 80,  70  };
-
-/**
- * PIO timing table
- */
-/*               mode:       0    1    2    3    4    */
-/* Cycle Time                     */
-static const u32 pio_t0min[]   = { 600, 383, 240, 180, 120 };
-/* Address valid to DIOR/DIORW    */
-static const u32 pio_t1min[]   = { 70,  50,  30,  30,  25  };
-/* DIOR/DIOW to end cycle         */
-static const u32 pio_t2min[]   = { 165, 125, 100, 80,  70  };
-/* DIOR/DIOW asserted pulse width */
-static const u32 pio_teocmin[] = { 165, 125, 100, 70,  25  };
-/* DIOW data hold                 */
-static const u32 pio_t4min[]   = { 30,  20,  15,  10,  10  };
-
-/* ******************************************************************
- * Multiword DMA timing table
- * ******************************************************************
- */
-/*               mode:       0   1    2        */
-/* Cycle Time                     */
-static const u32 mdma_t0min[]  = { 480, 150, 120 };
-/* DIOR/DIOW asserted pulse width */
-static const u32 mdma_tdmin[]  = { 215, 80,  70  };
-/* DMACK to read data released    */
-static const u32 mdma_thmin[]  = { 20,  15,  10  };
-/* DIOR/DIOW to DMACK hold        */
-static const u32 mdma_tjmin[]  = { 20,  5,   5   };
-/* DIOR negated pulse width       */
-static const u32 mdma_tkrmin[] = { 50,  50,  25  };
-/* DIOR negated pulse width       */
-static const u32 mdma_tkwmin[] = { 215, 50,  25  };
-/* CS[1:0] valid to DIOR/DIOW     */
-static const u32 mdma_tmmin[]  = { 50,  30,  25  };
-/* DMACK to read data released    */
-static const u32 mdma_tzmax[]  = { 20,  25,  25  };
-
-/**
- * Ultra DMA timing table
- */
-/*               mode:         0    1    2    3    4    5       */
-static const u32 udma_tcycmin[]  = { 112, 73,  54,  39,  25,  17 };
-static const u32 udma_tdvsmin[]  = { 70,  48,  31,  20,  7,   5  };
-static const u32 udma_tenvmax[]  = { 70,  70,  70,  55,  55,  50 };
-static const u32 udma_trpmin[]   = { 160, 125, 100, 100, 100, 85 };
-static const u32 udma_tmin[]     = { 5,   5,   5,   5,   3,   3  };
-
-
-static const u32 udma_tmlimin = 20;
-static const u32 udma_tzahmin = 20;
-static const u32 udma_tenvmin = 20;
-static const u32 udma_tackmin = 20;
-static const u32 udma_tssmin = 50;
-
-#define BFIN_MAX_SG_SEGMENTS 4
-
-/**
- *
- *	Function:       num_clocks_min
- *
- *	Description:
- *	calculate number of SCLK cycles to meet minimum timing
- */
-static unsigned short num_clocks_min(unsigned long tmin,
-				unsigned long fsclk)
-{
-	unsigned long tmp ;
-	unsigned short result;
-
-	tmp = tmin * (fsclk/1000/1000) / 1000;
-	result = (unsigned short)tmp;
-	if ((tmp*1000*1000) < (tmin*(fsclk/1000))) {
-		result++;
-	}
-
-	return result;
-}
-
-/**
- *	bfin_set_piomode - Initialize host controller PATA PIO timings
- *	@ap: Port whose timings we are configuring
- *	@adev: um
- *
- *	Set PIO mode for device.
- *
- *	LOCKING:
- *	None (inherited from caller).
- */
-
-static void bfin_set_piomode(struct ata_port *ap, struct ata_device *adev)
-{
-	int mode = adev->pio_mode - XFER_PIO_0;
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	unsigned int fsclk = get_sclk();
-	unsigned short teoc_reg, t2_reg, teoc_pio;
-	unsigned short t4_reg, t2_pio, t1_reg;
-	unsigned short n0, n6, t6min = 5;
-
-	/* the most restrictive timing value is t6 and tc, the DIOW - data hold
-	* If one SCLK pulse is longer than this minimum value then register
-	* transfers cannot be supported at this frequency.
-	*/
-	n6 = num_clocks_min(t6min, fsclk);
-	if (mode >= 0 && mode <= 4 && n6 >= 1) {
-		dev_dbg(adev->link->ap->dev, "set piomode: mode=%d, fsclk=%ud\n", mode, fsclk);
-		/* calculate the timing values for register transfers. */
-		while (mode > 0 && pio_fsclk[mode] > fsclk)
-			mode--;
-
-		/* DIOR/DIOW to end cycle time */
-		t2_reg = num_clocks_min(reg_t2min[mode], fsclk);
-		/* DIOR/DIOW asserted pulse width */
-		teoc_reg = num_clocks_min(reg_teocmin[mode], fsclk);
-		/* Cycle Time */
-		n0  = num_clocks_min(reg_t0min[mode], fsclk);
-
-		/* increase t2 until we meed the minimum cycle length */
-		if (t2_reg + teoc_reg < n0)
-			t2_reg = n0 - teoc_reg;
-
-		/* calculate the timing values for pio transfers. */
-
-		/* DIOR/DIOW to end cycle time */
-		t2_pio = num_clocks_min(pio_t2min[mode], fsclk);
-		/* DIOR/DIOW asserted pulse width */
-		teoc_pio = num_clocks_min(pio_teocmin[mode], fsclk);
-		/* Cycle Time */
-		n0  = num_clocks_min(pio_t0min[mode], fsclk);
-
-		/* increase t2 until we meed the minimum cycle length */
-		if (t2_pio + teoc_pio < n0)
-			t2_pio = n0 - teoc_pio;
-
-		/* Address valid to DIOR/DIORW */
-		t1_reg = num_clocks_min(pio_t1min[mode], fsclk);
-
-		/* DIOW data hold */
-		t4_reg = num_clocks_min(pio_t4min[mode], fsclk);
-
-		ATAPI_SET_REG_TIM_0(base, (teoc_reg<<8 | t2_reg));
-		ATAPI_SET_PIO_TIM_0(base, (t4_reg<<12 | t2_pio<<4 | t1_reg));
-		ATAPI_SET_PIO_TIM_1(base, teoc_pio);
-		if (mode > 2) {
-			ATAPI_SET_CONTROL(base,
-				ATAPI_GET_CONTROL(base) | IORDY_EN);
-		} else {
-			ATAPI_SET_CONTROL(base,
-				ATAPI_GET_CONTROL(base) & ~IORDY_EN);
-		}
-
-		/* Disable host ATAPI PIO interrupts */
-		ATAPI_SET_INT_MASK(base, ATAPI_GET_INT_MASK(base)
-			& ~(PIO_DONE_MASK | HOST_TERM_XFER_MASK));
-		SSYNC();
-	}
-}
-
-/**
- *	bfin_set_dmamode - Initialize host controller PATA DMA timings
- *	@ap: Port whose timings we are configuring
- *	@adev: um
- *
- *	Set UDMA mode for device.
- *
- *	LOCKING:
- *	None (inherited from caller).
- */
-
-static void bfin_set_dmamode(struct ata_port *ap, struct ata_device *adev)
-{
-	int mode;
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	unsigned long fsclk = get_sclk();
-	unsigned short tenv, tack, tcyc_tdvs, tdvs, tmli, tss, trp, tzah;
-	unsigned short tm, td, tkr, tkw, teoc, th;
-	unsigned short n0, nf, tfmin = 5;
-	unsigned short nmin, tcyc;
-
-	mode = adev->dma_mode - XFER_UDMA_0;
-	if (mode >= 0 && mode <= 5) {
-		dev_dbg(adev->link->ap->dev, "set udmamode: mode=%d\n", mode);
-		/* the most restrictive timing value is t6 and tc,
-		 * the DIOW - data hold. If one SCLK pulse is longer
-		 * than this minimum value then register
-		 * transfers cannot be supported at this frequency.
-		 */
-		while (mode > 0 && udma_fsclk[mode] > fsclk)
-			mode--;
-
-		nmin = num_clocks_min(udma_tmin[mode], fsclk);
-		if (nmin >= 1) {
-			/* calculate the timing values for Ultra DMA. */
-			tdvs = num_clocks_min(udma_tdvsmin[mode], fsclk);
-			tcyc = num_clocks_min(udma_tcycmin[mode], fsclk);
-			tcyc_tdvs = 2;
-
-			/* increase tcyc - tdvs (tcyc_tdvs) until we meed
-			 * the minimum cycle length
-			 */
-			if (tdvs + tcyc_tdvs < tcyc)
-				tcyc_tdvs = tcyc - tdvs;
-
-			/* Mow assign the values required for the timing
-			 * registers
-			 */
-			if (tcyc_tdvs < 2)
-				tcyc_tdvs = 2;
-
-			if (tdvs < 2)
-				tdvs = 2;
-
-			tack = num_clocks_min(udma_tackmin, fsclk);
-			tss = num_clocks_min(udma_tssmin, fsclk);
-			tmli = num_clocks_min(udma_tmlimin, fsclk);
-			tzah = num_clocks_min(udma_tzahmin, fsclk);
-			trp = num_clocks_min(udma_trpmin[mode], fsclk);
-			tenv = num_clocks_min(udma_tenvmin, fsclk);
-			if (tenv <= udma_tenvmax[mode]) {
-				ATAPI_SET_ULTRA_TIM_0(base, (tenv<<8 | tack));
-				ATAPI_SET_ULTRA_TIM_1(base,
-					(tcyc_tdvs<<8 | tdvs));
-				ATAPI_SET_ULTRA_TIM_2(base, (tmli<<8 | tss));
-				ATAPI_SET_ULTRA_TIM_3(base, (trp<<8 | tzah));
-			}
-		}
-	}
-
-	mode = adev->dma_mode - XFER_MW_DMA_0;
-	if (mode >= 0 && mode <= 2) {
-		dev_dbg(adev->link->ap->dev, "set mdmamode: mode=%d\n", mode);
-		/* the most restrictive timing value is tf, the DMACK to
-		 * read data released. If one SCLK pulse is longer than
-		 * this maximum value then the MDMA mode
-		 * cannot be supported at this frequency.
-		 */
-		while (mode > 0 && mdma_fsclk[mode] > fsclk)
-			mode--;
-
-		nf = num_clocks_min(tfmin, fsclk);
-		if (nf >= 1) {
-			/* calculate the timing values for Multi-word DMA. */
-
-			/* DIOR/DIOW asserted pulse width */
-			td = num_clocks_min(mdma_tdmin[mode], fsclk);
-
-			/* DIOR negated pulse width */
-			tkw = num_clocks_min(mdma_tkwmin[mode], fsclk);
-
-			/* Cycle Time */
-			n0  = num_clocks_min(mdma_t0min[mode], fsclk);
-
-			/* increase tk until we meed the minimum cycle length */
-			if (tkw + td < n0)
-				tkw = n0 - td;
-
-			/* DIOR negated pulse width - read */
-			tkr = num_clocks_min(mdma_tkrmin[mode], fsclk);
-			/* CS{1:0] valid to DIOR/DIOW */
-			tm = num_clocks_min(mdma_tmmin[mode], fsclk);
-			/* DIOR/DIOW to DMACK hold */
-			teoc = num_clocks_min(mdma_tjmin[mode], fsclk);
-			/* DIOW Data hold */
-			th = num_clocks_min(mdma_thmin[mode], fsclk);
-
-			ATAPI_SET_MULTI_TIM_0(base, (tm<<8 | td));
-			ATAPI_SET_MULTI_TIM_1(base, (tkr<<8 | tkw));
-			ATAPI_SET_MULTI_TIM_2(base, (teoc<<8 | th));
-			SSYNC();
-		}
-	}
-	return;
-}
-
-/**
- *
- *    Function:       wait_complete
- *
- *    Description:    Waits the interrupt from device
- *
- */
-static inline void wait_complete(void __iomem *base, unsigned short mask)
-{
-	unsigned short status;
-	unsigned int i = 0;
-
-#define PATA_BF54X_WAIT_TIMEOUT		10000
-
-	for (i = 0; i < PATA_BF54X_WAIT_TIMEOUT; i++) {
-		status = ATAPI_GET_INT_STATUS(base) & mask;
-		if (status)
-			break;
-	}
-
-	ATAPI_SET_INT_STATUS(base, mask);
-}
-
-/**
- *
- *    Function:       write_atapi_register
- *
- *    Description:    Writes to ATA Device Resgister
- *
- */
-
-static void write_atapi_register(void __iomem *base,
-		unsigned long ata_reg, unsigned short value)
-{
-	/* Program the ATA_DEV_TXBUF register with write data (to be
-	 * written into the device).
-	 */
-	ATAPI_SET_DEV_TXBUF(base, value);
-
-	/* Program the ATA_DEV_ADDR register with address of the
-	 * device register (0x01 to 0x0F).
-	 */
-	ATAPI_SET_DEV_ADDR(base, ata_reg);
-
-	/* Program the ATA_CTRL register with dir set to write (1)
-	 */
-	ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) | XFER_DIR));
-
-	/* ensure PIO DMA is not set */
-	ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) & ~PIO_USE_DMA));
-
-	/* and start the transfer */
-	ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) | PIO_START));
-
-	/* Wait for the interrupt to indicate the end of the transfer.
-	 * (We need to wait on and clear rhe ATA_DEV_INT interrupt status)
-	 */
-	wait_complete(base, PIO_DONE_INT);
-}
-
-/**
- *
- *	Function:       read_atapi_register
- *
- *Description:    Reads from ATA Device Resgister
- *
- */
-
-static unsigned short read_atapi_register(void __iomem *base,
-		unsigned long ata_reg)
-{
-	/* Program the ATA_DEV_ADDR register with address of the
-	 * device register (0x01 to 0x0F).
-	 */
-	ATAPI_SET_DEV_ADDR(base, ata_reg);
-
-	/* Program the ATA_CTRL register with dir set to read (0) and
-	 */
-	ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) & ~XFER_DIR));
-
-	/* ensure PIO DMA is not set */
-	ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) & ~PIO_USE_DMA));
-
-	/* and start the transfer */
-	ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) | PIO_START));
-
-	/* Wait for the interrupt to indicate the end of the transfer.
-	 * (PIO_DONE interrupt is set and it doesn't seem to matter
-	 * that we don't clear it)
-	 */
-	wait_complete(base, PIO_DONE_INT);
-
-	/* Read the ATA_DEV_RXBUF register with write data (to be
-	 * written into the device).
-	 */
-	return ATAPI_GET_DEV_RXBUF(base);
-}
-
-/**
- *
- *    Function:       write_atapi_register_data
- *
- *    Description:    Writes to ATA Device Resgister
- *
- */
-
-static void write_atapi_data(void __iomem *base,
-		int len, unsigned short *buf)
-{
-	int i;
-
-	/* Set transfer length to 1 */
-	ATAPI_SET_XFER_LEN(base, 1);
-
-	/* Program the ATA_DEV_ADDR register with address of the
-	 * ATA_REG_DATA
-	 */
-	ATAPI_SET_DEV_ADDR(base, ATA_REG_DATA);
-
-	/* Program the ATA_CTRL register with dir set to write (1)
-	 */
-	ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) | XFER_DIR));
-
-	/* ensure PIO DMA is not set */
-	ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) & ~PIO_USE_DMA));
-
-	for (i = 0; i < len; i++) {
-		/* Program the ATA_DEV_TXBUF register with write data (to be
-		 * written into the device).
-		 */
-		ATAPI_SET_DEV_TXBUF(base, buf[i]);
-
-		/* and start the transfer */
-		ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) | PIO_START));
-
-		/* Wait for the interrupt to indicate the end of the transfer.
-		 * (We need to wait on and clear rhe ATA_DEV_INT
-		 * interrupt status)
-		 */
-		wait_complete(base, PIO_DONE_INT);
-	}
-}
-
-/**
- *
- *	Function:       read_atapi_register_data
- *
- *	Description:    Reads from ATA Device Resgister
- *
- */
-
-static void read_atapi_data(void __iomem *base,
-		int len, unsigned short *buf)
-{
-	int i;
-
-	/* Set transfer length to 1 */
-	ATAPI_SET_XFER_LEN(base, 1);
-
-	/* Program the ATA_DEV_ADDR register with address of the
-	 * ATA_REG_DATA
-	 */
-	ATAPI_SET_DEV_ADDR(base, ATA_REG_DATA);
-
-	/* Program the ATA_CTRL register with dir set to read (0) and
-	 */
-	ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) & ~XFER_DIR));
-
-	/* ensure PIO DMA is not set */
-	ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) & ~PIO_USE_DMA));
-
-	for (i = 0; i < len; i++) {
-		/* and start the transfer */
-		ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base) | PIO_START));
-
-		/* Wait for the interrupt to indicate the end of the transfer.
-		 * (PIO_DONE interrupt is set and it doesn't seem to matter
-		 * that we don't clear it)
-		 */
-		wait_complete(base, PIO_DONE_INT);
-
-		/* Read the ATA_DEV_RXBUF register with write data (to be
-		 * written into the device).
-		 */
-		buf[i] = ATAPI_GET_DEV_RXBUF(base);
-	}
-}
-
-/**
- *	bfin_tf_load - send taskfile registers to host controller
- *	@ap: Port to which output is sent
- *	@tf: ATA taskfile register set
- *
- *	Note: Original code is ata_sff_tf_load().
- */
-
-static void bfin_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
-{
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
-
-	if (tf->ctl != ap->last_ctl) {
-		write_atapi_register(base, ATA_REG_CTRL, tf->ctl);
-		ap->last_ctl = tf->ctl;
-		ata_wait_idle(ap);
-	}
-
-	if (is_addr) {
-		if (tf->flags & ATA_TFLAG_LBA48) {
-			write_atapi_register(base, ATA_REG_FEATURE,
-						tf->hob_feature);
-			write_atapi_register(base, ATA_REG_NSECT,
-						tf->hob_nsect);
-			write_atapi_register(base, ATA_REG_LBAL, tf->hob_lbal);
-			write_atapi_register(base, ATA_REG_LBAM, tf->hob_lbam);
-			write_atapi_register(base, ATA_REG_LBAH, tf->hob_lbah);
-			dev_dbg(ap->dev, "hob: feat 0x%X nsect 0x%X, lba 0x%X "
-				 "0x%X 0x%X\n",
-				tf->hob_feature,
-				tf->hob_nsect,
-				tf->hob_lbal,
-				tf->hob_lbam,
-				tf->hob_lbah);
-		}
-
-		write_atapi_register(base, ATA_REG_FEATURE, tf->feature);
-		write_atapi_register(base, ATA_REG_NSECT, tf->nsect);
-		write_atapi_register(base, ATA_REG_LBAL, tf->lbal);
-		write_atapi_register(base, ATA_REG_LBAM, tf->lbam);
-		write_atapi_register(base, ATA_REG_LBAH, tf->lbah);
-		dev_dbg(ap->dev, "feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",
-			tf->feature,
-			tf->nsect,
-			tf->lbal,
-			tf->lbam,
-			tf->lbah);
-	}
-
-	if (tf->flags & ATA_TFLAG_DEVICE) {
-		write_atapi_register(base, ATA_REG_DEVICE, tf->device);
-		dev_dbg(ap->dev, "device 0x%X\n", tf->device);
-	}
-
-	ata_wait_idle(ap);
-}
-
-/**
- *	bfin_check_status - Read device status reg & clear interrupt
- *	@ap: port where the device is
- *
- *	Note: Original code is ata_check_status().
- */
-
-static u8 bfin_check_status(struct ata_port *ap)
-{
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	return read_atapi_register(base, ATA_REG_STATUS);
-}
-
-/**
- *	bfin_tf_read - input device's ATA taskfile shadow registers
- *	@ap: Port from which input is read
- *	@tf: ATA taskfile register set for storing input
- *
- *	Note: Original code is ata_sff_tf_read().
- */
-
-static void bfin_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
-{
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-
-	tf->command = bfin_check_status(ap);
-	tf->feature = read_atapi_register(base, ATA_REG_ERR);
-	tf->nsect = read_atapi_register(base, ATA_REG_NSECT);
-	tf->lbal = read_atapi_register(base, ATA_REG_LBAL);
-	tf->lbam = read_atapi_register(base, ATA_REG_LBAM);
-	tf->lbah = read_atapi_register(base, ATA_REG_LBAH);
-	tf->device = read_atapi_register(base, ATA_REG_DEVICE);
-
-	if (tf->flags & ATA_TFLAG_LBA48) {
-		write_atapi_register(base, ATA_REG_CTRL, tf->ctl | ATA_HOB);
-		tf->hob_feature = read_atapi_register(base, ATA_REG_ERR);
-		tf->hob_nsect = read_atapi_register(base, ATA_REG_NSECT);
-		tf->hob_lbal = read_atapi_register(base, ATA_REG_LBAL);
-		tf->hob_lbam = read_atapi_register(base, ATA_REG_LBAM);
-		tf->hob_lbah = read_atapi_register(base, ATA_REG_LBAH);
-	}
-}
-
-/**
- *	bfin_exec_command - issue ATA command to host controller
- *	@ap: port to which command is being issued
- *	@tf: ATA taskfile register set
- *
- *	Note: Original code is ata_sff_exec_command().
- */
-
-static void bfin_exec_command(struct ata_port *ap,
-			      const struct ata_taskfile *tf)
-{
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	dev_dbg(ap->dev, "ata%u: cmd 0x%X\n", ap->print_id, tf->command);
-
-	write_atapi_register(base, ATA_REG_CMD, tf->command);
-	ata_sff_pause(ap);
-}
-
-/**
- *	bfin_check_altstatus - Read device alternate status reg
- *	@ap: port where the device is
- */
-
-static u8 bfin_check_altstatus(struct ata_port *ap)
-{
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	return read_atapi_register(base, ATA_REG_ALTSTATUS);
-}
-
-/**
- *	bfin_dev_select - Select device 0/1 on ATA bus
- *	@ap: ATA channel to manipulate
- *	@device: ATA device (numbered from zero) to select
- *
- *	Note: Original code is ata_sff_dev_select().
- */
-
-static void bfin_dev_select(struct ata_port *ap, unsigned int device)
-{
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	u8 tmp;
-
-	if (device == 0)
-		tmp = ATA_DEVICE_OBS;
-	else
-		tmp = ATA_DEVICE_OBS | ATA_DEV1;
-
-	write_atapi_register(base, ATA_REG_DEVICE, tmp);
-	ata_sff_pause(ap);
-}
-
-/**
- *	bfin_set_devctl - Write device control reg
- *	@ap: port where the device is
- *	@ctl: value to write
- */
-
-static void bfin_set_devctl(struct ata_port *ap, u8 ctl)
-{
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	write_atapi_register(base, ATA_REG_CTRL, ctl);
-}
-
-/**
- *	bfin_bmdma_setup - Set up IDE DMA transaction
- *	@qc: Info associated with this ATA transaction.
- *
- *	Note: Original code is ata_bmdma_setup().
- */
-
-static void bfin_bmdma_setup(struct ata_queued_cmd *qc)
-{
-	struct ata_port *ap = qc->ap;
-	struct dma_desc_array *dma_desc_cpu = (struct dma_desc_array *)ap->bmdma_prd;
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	unsigned short config = DMAFLOW_ARRAY | NDSIZE_5 | RESTART | WDSIZE_16 | DMAEN;
-	struct scatterlist *sg;
-	unsigned int si;
-	unsigned int channel;
-	unsigned int dir;
-	unsigned int size = 0;
-
-	dev_dbg(qc->ap->dev, "in atapi dma setup\n");
-	/* Program the ATA_CTRL register with dir */
-	if (qc->tf.flags & ATA_TFLAG_WRITE) {
-		channel = CH_ATAPI_TX;
-		dir = DMA_TO_DEVICE;
-	} else {
-		channel = CH_ATAPI_RX;
-		dir = DMA_FROM_DEVICE;
-		config |= WNR;
-	}
-
-	dma_map_sg(ap->dev, qc->sg, qc->n_elem, dir);
-
-	/* fill the ATAPI DMA controller */
-	for_each_sg(qc->sg, sg, qc->n_elem, si) {
-		dma_desc_cpu[si].start_addr = sg_dma_address(sg);
-		dma_desc_cpu[si].cfg = config;
-		dma_desc_cpu[si].x_count = sg_dma_len(sg) >> 1;
-		dma_desc_cpu[si].x_modify = 2;
-		size += sg_dma_len(sg);
-	}
-
-	/* Set the last descriptor to stop mode */
-	dma_desc_cpu[qc->n_elem - 1].cfg &= ~(DMAFLOW | NDSIZE);
-
-	flush_dcache_range((unsigned int)dma_desc_cpu,
-		(unsigned int)dma_desc_cpu +
-			qc->n_elem * sizeof(struct dma_desc_array));
-
-	/* Enable ATA DMA operation*/
-	set_dma_curr_desc_addr(channel, (unsigned long *)ap->bmdma_prd_dma);
-	set_dma_x_count(channel, 0);
-	set_dma_x_modify(channel, 0);
-	set_dma_config(channel, config);
-
-	SSYNC();
-
-	/* Send ATA DMA command */
-	bfin_exec_command(ap, &qc->tf);
-
-	if (qc->tf.flags & ATA_TFLAG_WRITE) {
-		/* set ATA DMA write direction */
-		ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base)
-			| XFER_DIR));
-	} else {
-		/* set ATA DMA read direction */
-		ATAPI_SET_CONTROL(base, (ATAPI_GET_CONTROL(base)
-			& ~XFER_DIR));
-	}
-
-	/* Reset all transfer count */
-	ATAPI_SET_CONTROL(base, ATAPI_GET_CONTROL(base) | TFRCNT_RST);
-
-	/* Set ATAPI state machine contorl in terminate sequence */
-	ATAPI_SET_CONTROL(base, ATAPI_GET_CONTROL(base) | END_ON_TERM);
-
-	/* Set transfer length to the total size of sg buffers */
-	ATAPI_SET_XFER_LEN(base, size >> 1);
-}
-
-/**
- *	bfin_bmdma_start - Start an IDE DMA transaction
- *	@qc: Info associated with this ATA transaction.
- *
- *	Note: Original code is ata_bmdma_start().
- */
-
-static void bfin_bmdma_start(struct ata_queued_cmd *qc)
-{
-	struct ata_port *ap = qc->ap;
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-
-	dev_dbg(qc->ap->dev, "in atapi dma start\n");
-
-	if (!(ap->udma_mask || ap->mwdma_mask))
-		return;
-
-	/* start ATAPI transfer*/
-	if (ap->udma_mask)
-		ATAPI_SET_CONTROL(base, ATAPI_GET_CONTROL(base)
-			| ULTRA_START);
-	else
-		ATAPI_SET_CONTROL(base, ATAPI_GET_CONTROL(base)
-			| MULTI_START);
-}
-
-/**
- *	bfin_bmdma_stop - Stop IDE DMA transfer
- *	@qc: Command we are ending DMA for
- */
-
-static void bfin_bmdma_stop(struct ata_queued_cmd *qc)
-{
-	struct ata_port *ap = qc->ap;
-	unsigned int dir;
-
-	dev_dbg(qc->ap->dev, "in atapi dma stop\n");
-
-	if (!(ap->udma_mask || ap->mwdma_mask))
-		return;
-
-	/* stop ATAPI DMA controller*/
-	if (qc->tf.flags & ATA_TFLAG_WRITE) {
-		dir = DMA_TO_DEVICE;
-		disable_dma(CH_ATAPI_TX);
-	} else {
-		dir = DMA_FROM_DEVICE;
-		disable_dma(CH_ATAPI_RX);
-	}
-
-	dma_unmap_sg(ap->dev, qc->sg, qc->n_elem, dir);
-}
-
-/**
- *	bfin_devchk - PATA device presence detection
- *	@ap: ATA channel to examine
- *	@device: Device to examine (starting at zero)
- *
- *	Note: Original code is ata_devchk().
- */
-
-static unsigned int bfin_devchk(struct ata_port *ap,
-				unsigned int device)
-{
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	u8 nsect, lbal;
-
-	bfin_dev_select(ap, device);
-
-	write_atapi_register(base, ATA_REG_NSECT, 0x55);
-	write_atapi_register(base, ATA_REG_LBAL, 0xaa);
-
-	write_atapi_register(base, ATA_REG_NSECT, 0xaa);
-	write_atapi_register(base, ATA_REG_LBAL, 0x55);
-
-	write_atapi_register(base, ATA_REG_NSECT, 0x55);
-	write_atapi_register(base, ATA_REG_LBAL, 0xaa);
-
-	nsect = read_atapi_register(base, ATA_REG_NSECT);
-	lbal = read_atapi_register(base, ATA_REG_LBAL);
-
-	if ((nsect == 0x55) && (lbal == 0xaa))
-		return 1;	/* we found a device */
-
-	return 0;		/* nothing found */
-}
-
-/**
- *	bfin_bus_post_reset - PATA device post reset
- *
- *	Note: Original code is ata_bus_post_reset().
- */
-
-static void bfin_bus_post_reset(struct ata_port *ap, unsigned int devmask)
-{
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	unsigned int dev0 = devmask & (1 << 0);
-	unsigned int dev1 = devmask & (1 << 1);
-	unsigned long deadline;
-
-	/* if device 0 was found in ata_devchk, wait for its
-	 * BSY bit to clear
-	 */
-	if (dev0)
-		ata_sff_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT);
-
-	/* if device 1 was found in ata_devchk, wait for
-	 * register access, then wait for BSY to clear
-	 */
-	deadline = ata_deadline(jiffies, ATA_TMOUT_BOOT);
-	while (dev1) {
-		u8 nsect, lbal;
-
-		bfin_dev_select(ap, 1);
-		nsect = read_atapi_register(base, ATA_REG_NSECT);
-		lbal = read_atapi_register(base, ATA_REG_LBAL);
-		if ((nsect == 1) && (lbal == 1))
-			break;
-		if (time_after(jiffies, deadline)) {
-			dev1 = 0;
-			break;
-		}
-		ata_msleep(ap, 50);	/* give drive a breather */
-	}
-	if (dev1)
-		ata_sff_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT);
-
-	/* is all this really necessary? */
-	bfin_dev_select(ap, 0);
-	if (dev1)
-		bfin_dev_select(ap, 1);
-	if (dev0)
-		bfin_dev_select(ap, 0);
-}
-
-/**
- *	bfin_bus_softreset - PATA device software reset
- *
- *	Note: Original code is ata_bus_softreset().
- */
-
-static unsigned int bfin_bus_softreset(struct ata_port *ap,
-				       unsigned int devmask)
-{
-	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-
-	/* software reset.  causes dev0 to be selected */
-	write_atapi_register(base, ATA_REG_CTRL, ap->ctl);
-	udelay(20);
-	write_atapi_register(base, ATA_REG_CTRL, ap->ctl | ATA_SRST);
-	udelay(20);
-	write_atapi_register(base, ATA_REG_CTRL, ap->ctl);
-
-	/* spec mandates ">= 2ms" before checking status.
-	 * We wait 150ms, because that was the magic