Merge bk://bart.bkbits.net/ide-2.6

into ppc970.osdl.org:/home/torvalds/v2.6/linux

12 files changed, 111 insertions, 209 deletions

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 35c399860780..4305f7cc2a2a 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -830,6 +830,13 @@ config BLK_DEV_IDE_RAPIDE
 	  Say Y here if you want to support the Yellowstone RapIDE controller
 	  manufactured for use with Acorn computers.
 
+config BLK_DEV_IDE_BAST
+	tristate "Simtec BAST / Thorcom VR1000 IDE support"
+	depends on ARM && (ARCH_BAST || MACH_VR100)
+	help
+	  Say Y here if you want to support the onboard IDE channels on the
+	  Simtec BAST or the Thorcom VR1000
+
 config BLK_DEV_GAYLE
 	bool "Amiga Gayle IDE interface support"
 	depends on AMIGA
diff --git a/drivers/ide/arm/Makefile b/drivers/ide/arm/Makefile
index ba897493dd1e..6a78f0755f26 100644
--- a/drivers/ide/arm/Makefile
+++ b/drivers/ide/arm/Makefile
@@ -1,5 +1,6 @@
 
 obj-$(CONFIG_BLK_DEV_IDE_ICSIDE)	+= icside.o
 obj-$(CONFIG_BLK_DEV_IDE_RAPIDE)	+= rapide.o
+obj-$(CONFIG_BLK_DEV_IDE_BAST)		+= bast-ide.o
 
 EXTRA_CFLAGS	:= -Idrivers/ide
diff --git a/drivers/ide/arm/bast-ide.c b/drivers/ide/arm/bast-ide.c
new file mode 100644
index 000000000000..9d474e5fd8dc
--- /dev/null
+++ b/drivers/ide/arm/bast-ide.c
@@ -0,0 +1,71 @@
+/* linux/drivers/ide/arm/bast-ide.c
+ *
+ * Copyright (c) 2003-2004 Simtec Electronics
+ *  Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+*/
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/mach-types.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/arch/map.h>
+#include <asm/arch/bast-map.h>
+#include <asm/arch/bast-irq.h>
+
+/* list of registered interfaces */
+static ide_hwif_t *ifs[2];
+
+static int __init
+bastide_register(unsigned int base, unsigned int aux, int irq,
+		 ide_hwif_t **hwif)
+{
+	hw_regs_t hw;
+	int i;
+
+	memset(&hw, 0, sizeof(hw));
+
+	base += BAST_IDE_CS;
+	aux  += BAST_IDE_CS;
+
+	for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
+		hw.io_ports[i] = (unsigned long)base;
+		base += 0x20;
+	}
+
+	hw.io_ports[IDE_CONTROL_OFFSET] = aux + (6 * 0x20);
+	hw.irq = irq;
+
+	ide_register_hw(&hw, hwif);
+
+	return 0;
+}
+
+static int __init bastide_init(void)
+{
+	/* we can treat the VR1000 and the BAST the same */
+
+	if (!(machine_is_bast() || machine_is_vr1000()))
+		return 0;
+
+	printk("BAST: IDE driver, (c) 2003-2004 Simtec Electronics\n");
+
+	bastide_register(BAST_VA_IDEPRI, BAST_VA_IDEPRIAUX, IRQ_IDE0, &ifs[0]);
+	bastide_register(BAST_VA_IDESEC, BAST_VA_IDESECAUX, IRQ_IDE1, &ifs[1]);
+	return 0;
+}
+
+module_init(bastide_init);
+
+MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Simtec BAST / Thorcom VR1000 IDE driver");
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index dd9229190f3f..61c72a700014 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -389,15 +389,6 @@ static int try_to_identify (ide_drive_t *drive, u8 cmd)
 				 */
 				printk("%s: IRQ probe failed (0x%lx)\n",
 					drive->name, cookie);
-#ifdef CONFIG_BLK_DEV_CMD640
-#ifdef CMD640_DUMP_REGS
-				if (hwif->chipset == ide_cmd640) {
-					printk("%s: Hmmm.. probably a driver "
-						"problem.\n", drive->name);
-					CMD640_DUMP_REGS;
-				}
-#endif /* CMD640_DUMP_REGS */
-#endif /* CONFIG_BLK_DEV_CMD640 */
 			}
 		}
 	}
diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
index a3ebd9e127e0..07c989bb18e2 100644
--- a/drivers/ide/ide-proc.c
+++ b/drivers/ide/ide-proc.c
@@ -360,27 +360,14 @@ static int proc_ide_read_identify
 	int		err = 0;
 
 	len = sprintf(page, "\n");
-	
-	if (drive)
-	{
+
+	if (drive) {
 		unsigned short *val = (unsigned short *) page;
-		
-		/*
-		 *	The current code can't handle a driverless
-		 *	identify query taskfile. Now the right fix is
-		 *	to add a 'default' driver but that is a bit
-		 *	more work. 
-		 *
-		 *	FIXME: this has to be fixed for hotswap devices
-		 */
-		 
-		if(DRIVER(drive))
-			err = taskfile_lib_get_identify(drive, page);
-		else	/* This relies on the ID changes */
-			val = (unsigned short *)drive->id;
-
-		if(!err)
-		{						
+
+		BUG_ON(!drive->driver);
+
+		err = taskfile_lib_get_identify(drive, page);
+		if (!err) {
 			char *out = ((char *)page) + (SECTOR_WORDS * 4);
 			page = out;
 			do {
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 977672ab7d86..f333f3eaeb66 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -103,30 +103,6 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
 
 EXPORT_SYMBOL(taskfile_lib_get_identify);
 
-#ifdef CONFIG_IDE_TASK_IOCTL_DEBUG
-void debug_taskfile (ide_drive_t *drive, ide_task_t *args)
-{
-	printk(KERN_INFO "%s: ", drive->name);
-//	printk("TF.0=x%02x ", args->tfRegister[IDE_DATA_OFFSET]);
-	printk("TF.1=x%02x ", args->tfRegister[IDE_FEATURE_OFFSET]);
-	printk("TF.2=x%02x ", args->tfRegister[IDE_NSECTOR_OFFSET]);
-	printk("TF.3=x%02x ", args->tfRegister[IDE_SECTOR_OFFSET]);
-	printk("TF.4=x%02x ", args->tfRegister[IDE_LCYL_OFFSET]);
-	printk("TF.5=x%02x ", args->tfRegister[IDE_HCYL_OFFSET]);
-	printk("TF.6=x%02x ", args->tfRegister[IDE_SELECT_OFFSET]);
-	printk("TF.7=x%02x\n", args->tfRegister[IDE_COMMAND_OFFSET]);
-	printk(KERN_INFO "%s: ", drive->name);
-//	printk("HTF.0=x%02x ", args->hobRegister[IDE_DATA_OFFSET]);
-	printk("HTF.1=x%02x ", args->hobRegister[IDE_FEATURE_OFFSET]);
-	printk("HTF.2=x%02x ", args->hobRegister[IDE_NSECTOR_OFFSET]);
-	printk("HTF.3=x%02x ", args->hobRegister[IDE_SECTOR_OFFSET]);
-	printk("HTF.4=x%02x ", args->hobRegister[IDE_LCYL_OFFSET]);
-	printk("HTF.5=x%02x ", args->hobRegister[IDE_HCYL_OFFSET]);
-	printk("HTF.6=x%02x ", args->hobRegister[IDE_SELECT_OFFSET]);
-	printk("HTF.7=x%02x\n", args->hobRegister[IDE_CONTROL_OFFSET_HOB]);
-}
-#endif /* CONFIG_IDE_TASK_IOCTL_DEBUG */
-
 ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
 {
 	ide_hwif_t *hwif	= HWIF(drive);
@@ -134,10 +110,6 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
 	hob_struct_t *hobfile	= (hob_struct_t *) task->hobRegister;
 	u8 HIHI			= (drive->addressing == 1) ? 0xE0 : 0xEF;
 
-#ifdef CONFIG_IDE_TASK_IOCTL_DEBUG
-	void debug_taskfile(drive, task);
-#endif /* CONFIG_IDE_TASK_IOCTL_DEBUG */
-
 	/* ALL Command Block Executions SHALL clear nIEN, unless otherwise */
 	if (IDE_CONTROL_REG) {
 		/* clear nIEN */
@@ -853,11 +825,6 @@ ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
 	u8 status;
 #endif
 
-
-#ifdef CONFIG_IDE_TASK_IOCTL_DEBUG
-	void debug_taskfile(drive, task);
-#endif /* CONFIG_IDE_TASK_IOCTL_DEBUG */
-
 	if (task->data_phase == TASKFILE_MULTI_IN ||
 	    task->data_phase == TASKFILE_MULTI_OUT) {
 		if (!drive->mult_count) {
diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c
index 22bd8f16ae04..d80959488028 100644
--- a/drivers/ide/pci/aec62xx.c
+++ b/drivers/ide/pci/aec62xx.c
@@ -29,8 +29,6 @@ static u8 aec62xx_proc = 0;
 static struct pci_dev *aec_devs[AEC_MAX_DEVS];
 static int n_aec_devs;
 
-#undef DEBUG_AEC_REGS
-
 static int aec62xx_get_info (char *buffer, char **addr, off_t offset, int count)
 {
 	char *p = buffer;
@@ -44,9 +42,6 @@ static int aec62xx_get_info (char *buffer, char **addr, off_t offset, int count)
 		struct pci_dev *dev	= aec_devs[i];
 		unsigned long iobase = pci_resource_start(dev, 4);
 		u8 c0 = 0, c1 = 0, art	= 0;
-#ifdef DEBUG_AEC_REGS
-		u8 uart			= 0;
-#endif /* DEBUG_AEC_REGS */
 
 		c0 = inb(iobase + 0x02);
 		c1 = inb(iobase + 0x0a);
@@ -83,24 +78,6 @@ static int aec62xx_get_info (char *buffer, char **addr, off_t offset, int count)
 			p += sprintf(p, "           %s(%s)\n",
 				(c1&0x40)?((art&0xc0)?"UDMA":" DMA"):" PIO",
 				(art&0x80)?"2":(art&0x40)?"1":"0");
-#ifdef DEBUG_AEC_REGS
-			(void) pci_read_config_byte(dev, 0x40, &art);
-			p += sprintf(p, "Active:         0x%02x", art);
-			(void) pci_read_config_byte(dev, 0x42, &art);
-			p += sprintf(p, "             0x%02x", art);
-			(void) pci_read_config_byte(dev, 0x44, &art);
-			p += sprintf(p, "            0x%02x", art);
-			(void) pci_read_config_byte(dev, 0x46, &art);
-			p += sprintf(p, "              0x%02x\n", art);
-			(void) pci_read_config_byte(dev, 0x41, &art);
-			p += sprintf(p, "Recovery:       0x%02x", art);
-			(void) pci_read_config_byte(dev, 0x43, &art);
-			p += sprintf(p, "             0x%02x", art);
-			(void) pci_read_config_byte(dev, 0x45, &art);
-			p += sprintf(p, "            0x%02x", art);
-			(void) pci_read_config_byte(dev, 0x47, &art);
-			p += sprintf(p, "              0x%02x\n", art);
-#endif /* DEBUG_AEC_REGS */
 		} else {
 			/*
 			 * case PCI_DEVICE_ID_ARTOP_ATP860:
@@ -146,28 +123,6 @@ static int aec62xx_get_info (char *buffer, char **addr, off_t offset, int count)
 				((art&0x30)==0x30)?"2":
 				((art&0x20)==0x20)?"1":
 				((art&0x10)==0x10)?"0":"?");
-#ifdef DEBUG_AEC_REGS
-			(void) pci_read_config_byte(dev, 0x40, &art);
-			p += sprintf(p, "Active:         0x%02x", HIGH_4(art));
-			(void) pci_read_config_byte(dev, 0x41, &art);
-			p += sprintf(p, "             0x%02x", HIGH_4(art));
-			(void) pci_read_config_byte(dev, 0x42, &art);
-			p += sprintf(p, "            0x%02x", HIGH_4(art));
-			(void) pci_read_config_byte(dev, 0x43, &art);
-			p += sprintf(p, "              0x%02x\n", HIGH_4(art));
-			(void) pci_read_config_byte(dev, 0x40, &art);
-			p += sprintf(p, "Recovery:       0x%02x", LOW_4(art));
-			(void) pci_read_config_byte(dev, 0x41, &art);
-			p += sprintf(p, "             0x%02x", LOW_4(art));
-			(void) pci_read_config_byte(dev, 0x42, &art);
-			p += sprintf(p, "            0x%02x", LOW_4(art));
-			(void) pci_read_config_byte(dev, 0x43, &art);
-			p += sprintf(p, "              0x%02x\n", LOW_4(art));
-			(void) pci_read_config_byte(dev, 0x49, &uart);
-			p += sprintf(p, "reg49h = 0x%02x ", uart);
-			(void) pci_read_config_byte(dev, 0x4a, &uart);
-			p += sprintf(p, "reg4ah = 0x%02x\n", uart);
-#endif /* DEBUG_AEC_REGS */
 		}
 	}
 	/* p - buffer must be less than 4k! */
@@ -240,6 +195,7 @@ static int aec6210_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 	unsigned long flags;
 
 	local_irq_save(flags);
+	/* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
 	pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
 	tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev));
 	SPLIT_BYTE(tmp0,tmp1,tmp2);
@@ -268,6 +224,7 @@ static int aec6260_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 	unsigned long flags;
 
 	local_irq_save(flags);
+	/* high 4-bits: Active, low 4-bits: Recovery */
 	pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
 	drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev));
 	pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);
diff --git a/drivers/ide/pci/aec62xx.h b/drivers/ide/pci/aec62xx.h
index 3f272752cca5..460d7e365e5d 100644
--- a/drivers/ide/pci/aec62xx.h
+++ b/drivers/ide/pci/aec62xx.h
@@ -53,13 +53,6 @@ struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
 	{	0,		0x00,	0x00	}
 };
 
-
-#ifndef HIGH_4
-#define HIGH_4(H)		((H)=(H>>4))
-#endif
-#ifndef LOW_4
-#define LOW_4(L)		((L)=(L-((L>>4)<<4)))
-#endif
 #ifndef SPLIT_BYTE
 #define SPLIT_BYTE(B,H,L)	((H)=(B>>4), (L)=(B-((B>>4)<<4)))
 #endif
diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c
index 0eac8ee64d2e..92a2b7caed58 100644
--- a/drivers/ide/pci/cmd640.c
+++ b/drivers/ide/pci/cmd640.c
@@ -101,6 +101,8 @@
 #undef REALLY_SLOW_IO		/* most systems can safely undef this */
 #define CMD640_PREFETCH_MASKS 1
 
+//#define CMD640_DUMP_REGS
+
 #include <linux/config.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -748,7 +750,7 @@ int __init ide_probe_for_cmd640x (void)
 	put_cmd640_reg(0x5b, 0);
 
 #ifdef CMD640_DUMP_REGS
-	CMD640_DUMP_REGS;
+	cmd640_dump_regs();
 #endif
 
 	/*
@@ -870,7 +872,7 @@ int __init ide_probe_for_cmd640x (void)
 	}
 
 #ifdef CMD640_DUMP_REGS
-	CMD640_DUMP_REGS;
+	cmd640_dump_regs();
 #endif
 	return 1;
 }
diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c
index 1125d9c32fea..c4161a5f517e 100644
--- a/drivers/ide/pci/piix.c
+++ b/drivers/ide/pci/piix.c
@@ -561,36 +561,31 @@ static int piix_config_drive_xfer_rate (ide_drive_t *drive)
 	drive->init_speed = 0;
 
 	if ((id->capability & 1) && drive->autodma) {
+
 		/* Consult the list of known "bad" drives */
 		if (__ide_dma_bad_drive(drive))
 			goto fast_ata_pio;
-		if (id->field_valid & 4) {
-			if (id->dma_ultra & hwif->ultra_mask) {
-				/* Force if Capable UltraDMA */
-				if ((id->field_valid & 2) &&
-				    (!piix_config_drive_for_dma(drive)))
-					goto try_dma_modes;
-			}
-		} else if (id->field_valid & 2) {
-try_dma_modes:
-			if ((id->dma_mword & hwif->mwdma_mask) ||
-			    (id->dma_1word & hwif->swdma_mask)) {
-				/* Force if Capable regular DMA modes */
-				if (!piix_config_drive_for_dma(drive))
-					goto no_dma_set;
-			}
-		} else if (__ide_dma_good_drive(drive) &&
-			   (id->eide_dma_time < 150)) {
-			/* Consult the list of known "good" drives */
-			if (!piix_config_drive_for_dma(drive))
-				goto no_dma_set;
-		} else {
-			goto fast_ata_pio;
+
+		/**
+		 * Try to turn DMA on if:
+		 *  - UDMA or EIDE modes are supported or
+		 *  - drive is a known "good" drive
+		 *
+		 * Checks for best mode supported are down later by
+		 * piix_config_drive_for_dma() -> ide_dma_speed()
+		 */
+		if ((id->field_valid & (4 | 2)) ||
+		    (__ide_dma_good_drive(drive) && id->eide_dma_time < 150)) {
+			if (piix_config_drive_for_dma(drive))
+				return hwif->ide_dma_on(drive);
 		}
-		return hwif->ide_dma_on(drive);
+
+		/* For some reason DMA wasn't turned on, so try PIO. */
+		goto fast_ata_pio;
+
 	} else if ((id->capability & 8) || (id->field_valid & 2)) {
 fast_ata_pio:
-no_dma_set:
+		/* Find best PIO mode. */
 		hwif->tuneproc(drive, 255);
 		return hwif->ide_dma_off_quietly(drive);
 	}
diff --git a/drivers/ide/pci/triflex.c b/drivers/ide/pci/triflex.c
index 3468d635d74e..eca0772f22e6 100644
--- a/drivers/ide/pci/triflex.c
+++ b/drivers/ide/pci/triflex.c
@@ -41,57 +41,6 @@
 #include <linux/ide.h>
 #include <linux/init.h>
 
-static struct pci_dev *triflex_dev;
-
-#ifdef CONFIG_PROC_FS
-static int triflex_get_info(char *buf, char **addr, off_t offset, int count)
-{
-	char *p = buf;
-	int len;
-
-	struct pci_dev *dev	= triflex_dev;
-	unsigned long bibma = pci_resource_start(dev, 4);
-	u8  c0 = 0, c1 = 0;
-	u32 pri_timing, sec_timing;
-
-	p += sprintf(p, "\n                                Compaq Triflex Chipset\n");
-	
-	pci_read_config_dword(dev, 0x70, &pri_timing);
-	pci_read_config_dword(dev, 0x74, &sec_timing);
-
-	/*
-	 * at that point bibma+0x2 et bibma+0xa are byte registers
-	 * to investigate:
-	 */
-	c0 = inb((unsigned short)bibma + 0x02);
-	c1 = inb((unsigned short)bibma + 0x0a);
-
-	p += sprintf(p, "--------------- Primary Channel "
-			"---------------- Secondary Channel "
-			"-------------\n");
-	p += sprintf(p, "                %sabled "
-			"                        %sabled\n",
-			(c0&0x80) ? "dis" : " en",
-			(c1&0x80) ? "dis" : " en");
-	p += sprintf(p, "--------------- drive0 --------- drive1 "
-			"-------- drive0 ---------- drive1 ------\n");
-	p += sprintf(p, "DMA enabled:    %s              %s "
-			"            %s               %s\n",
-			(c0&0x20) ? "yes" : "no ",
-			(c0&0x40) ? "yes" : "no ",
-			(c1&0x20) ? "yes" : "no ",
-			(c1&0x40) ? "yes" : "no " );
-
-	p += sprintf(p, "DMA\n");
-	p += sprintf(p, "PIO\n");
-
-	len = (p - buf) - offset;
-	*addr = buf + offset;
-	
-	return len > count ? count : len;
-}
-#endif
-
 static int triflex_tune_chipset(ide_drive_t *drive, u8 xferspeed)
 {
 	ide_hwif_t *hwif = HWIF(drive);
@@ -206,18 +155,8 @@ static void __init init_hwif_triflex(ide_hwif_t *hwif)
 	hwif->drives[1].autodma = hwif->autodma;
 }
 
-static unsigned int __init init_chipset_triflex(struct pci_dev *dev, 
-		const char *name) 
-{
-#ifdef CONFIG_PROC_FS
-	ide_pci_create_host_proc("triflex", triflex_get_info);
-#endif
-	return 0;	
-}
-
 static ide_pci_device_t triflex_device __devinitdata = {
 	.name		= "TRIFLEX",
-	.init_chipset	= init_chipset_triflex,
 	.init_hwif	= init_hwif_triflex,
 	.channels	= 2,
 	.autodma	= AUTODMA,
@@ -229,7 +168,6 @@ static int __devinit triflex_init_one(struct pci_dev *dev,
 		const struct pci_device_id *id)
 {
 	ide_setup_pci_device(dev, &triflex_device);
-	triflex_dev = dev;
 
 	return 0;
 }
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 590f4ed1069e..f6a39379ada9 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -52,13 +52,6 @@
 #define OK_TO_RESET_CONTROLLER	1	/* 0 for use with AH2372A/B interface */
 #endif
 
-#ifdef CONFIG_BLK_DEV_CMD640
-#if 0	/* change to 1 when debugging cmd640 problems */
-void cmd640_dump_regs (void);
-#define CMD640_DUMP_REGS cmd640_dump_regs() /* for debugging cmd640 chipset */
-#endif
-#endif  /* CONFIG_BLK_DEV_CMD640 */
-
 #ifndef DISABLE_IRQ_NOSYNC
 #define DISABLE_IRQ_NOSYNC	0
 #endif