[PATCH 0/3] ide/MIPS/docs: remove no longer used au1xxx-ide driver

[PATCH 0/3] ide/MIPS/docs: remove no longer used au1xxx-ide driver

[Bartlomiej Zolnierkiewicz]

Hi,

Commit 54ff4a1d1732 ("MIPS: Alchemy: pata_platform for DB1200")
from year 2014 converted the only user of au1xxx-ide IDE host
driver (MIPS Alchemy DB1200 platform) to use pata_platform libata
host driver instead. This patch series removes dead au1xxx-ide
driver code & co.

Since patch #2 depends on patch #1 (and it is also the best to
apply patch #3 after driver code removal) it would be probably
easiest to merge everything through MIPS tree (after getting
necessary ACKs, from David for the first patch and Jonathan for
the third one).

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics


Bartlomiej Zolnierkiewicz (3):
  ide: remove no longer used au1xxx-ide driver
  MIPS: Alchemy: remove no longer used au1xxx_ide.h header
  docs: mips: remove no longer needed au1xxx_ide.rst documentation

 Documentation/mips/au1xxx_ide.rst             | 130 ----
 Documentation/mips/index.rst                  |   2 -
 .../mips/include/asm/mach-au1x00/au1xxx_ide.h | 178 ------
 drivers/ide/Kconfig                           |  17 -
 drivers/ide/Makefile                          |   2 -
 drivers/ide/au1xxx-ide.c                      | 597 ------------------
 6 files changed, 926 deletions(-)
 delete mode 100644 Documentation/mips/au1xxx_ide.rst
 delete mode 100644 arch/mips/include/asm/mach-au1x00/au1xxx_ide.h
 delete mode 100644 drivers/ide/au1xxx-ide.c

-- 
2.24.1

[PATCH 1/3] ide: remove no longer used au1xxx-ide driver

[Bartlomiej Zolnierkiewicz]

Commit 54ff4a1d1732 ("MIPS: Alchemy: pata_platform for DB1200")
from year 2014 converted the only user of au1xxx-ide IDE host
driver (MIPS Alchemy DB1200 platform) to use pata_platform
libata host driver instead. This patch removes dead au1xxx-ide
driver code.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
 drivers/ide/Kconfig      |  17 --
 drivers/ide/Makefile     |   2 -
 drivers/ide/au1xxx-ide.c | 597 ---------------------------------------
 3 files changed, 616 deletions(-)
 delete mode 100644 drivers/ide/au1xxx-ide.c

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 1c227ea8ecd3..ae8574d8c037 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -662,23 +662,6 @@ config BLK_DEV_IDE_PMAC_ATA100FIRST
 	  CD-ROM on hda. This option changes this to more natural hda for
 	  hard disk and hdc for CD-ROM.
 
-config BLK_DEV_IDE_AU1XXX
-	bool "IDE for AMD Alchemy Au1200"
-	depends on MIPS_ALCHEMY
-	select IDE_XFER_MODE
-choice
-	prompt "IDE Mode for AMD Alchemy Au1200"
-	default BLK_DEV_IDE_AU1XXX_PIO_DBDMA
-	depends on BLK_DEV_IDE_AU1XXX
-
-config BLK_DEV_IDE_AU1XXX_PIO_DBDMA
-	bool "PIO+DbDMA IDE for AMD Alchemy Au1200"
-
-config BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-	bool "MDMA2+DbDMA IDE for AMD Alchemy Au1200"
-	depends on BLK_DEV_IDE_AU1XXX
-endchoice
-
 config BLK_DEV_IDE_TX4938
 	tristate "TX4938 internal IDE support"
 	depends on SOC_TX4938
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index cac02db4098d..a0c54f40e157 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -109,7 +109,5 @@ obj-$(CONFIG_BLK_DEV_IDE_ICSIDE)	+= icside.o
 obj-$(CONFIG_BLK_DEV_IDE_RAPIDE)	+= rapide.o
 obj-$(CONFIG_BLK_DEV_PALMCHIP_BK3710)	+= palm_bk3710.o
 
-obj-$(CONFIG_BLK_DEV_IDE_AU1XXX)	+= au1xxx-ide.o
-
 obj-$(CONFIG_BLK_DEV_IDE_TX4938)	+= tx4938ide.o
 obj-$(CONFIG_BLK_DEV_IDE_TX4939)	+= tx4939ide.o
diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c
deleted file mode 100644
index 4d181a918d72..000000000000
--- a/drivers/ide/au1xxx-ide.c
+++ /dev/null
@@ -1,597 +0,0 @@
-/*
- * BRIEF MODULE DESCRIPTION
- * AMD Alchemy Au1xxx IDE interface routines over the Static Bus
- *
- * Copyright (c) 2003-2005 AMD, Personal Connectivity Solutions
- *
- * 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 SOFTWARE IS PROVIDED ``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.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE
- *       Interface and Linux Device Driver" Application Note.
- */
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/ide.h>
-#include <linux/scatterlist.h>
-
-#include <asm/mach-au1x00/au1000.h>
-#include <asm/mach-au1x00/au1xxx_dbdma.h>
-#include <asm/mach-au1x00/au1xxx_ide.h>
-
-#define DRV_NAME	"au1200-ide"
-#define DRV_AUTHOR	"Enrico Walther <enrico.walther@amd.com> / Pete Popov <ppopov@embeddedalley.com>"
-
-#ifndef IDE_REG_SHIFT
-#define IDE_REG_SHIFT 5
-#endif
-
-/* enable the burstmode in the dbdma */
-#define IDE_AU1XXX_BURSTMODE	1
-
-static _auide_hwif auide_hwif;
-
-#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA)
-
-static inline void auide_insw(unsigned long port, void *addr, u32 count)
-{
-	_auide_hwif *ahwif = &auide_hwif;
-	chan_tab_t *ctp;
-	au1x_ddma_desc_t *dp;
-
-	if (!au1xxx_dbdma_put_dest(ahwif->rx_chan, virt_to_phys(addr),
-				   count << 1, DDMA_FLAGS_NOIE)) {
-		printk(KERN_ERR "%s failed %d\n", __func__, __LINE__);
-		return;
-	}
-	ctp = *((chan_tab_t **)ahwif->rx_chan);
-	dp = ctp->cur_ptr;
-	while (dp->dscr_cmd0 & DSCR_CMD0_V)
-		;
-	ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
-}
-
-static inline void auide_outsw(unsigned long port, void *addr, u32 count)
-{
-	_auide_hwif *ahwif = &auide_hwif;
-	chan_tab_t *ctp;
-	au1x_ddma_desc_t *dp;
-
-	if (!au1xxx_dbdma_put_source(ahwif->tx_chan, virt_to_phys(addr),
-				     count << 1, DDMA_FLAGS_NOIE)) {
-		printk(KERN_ERR "%s failed %d\n", __func__, __LINE__);
-		return;
-	}
-	ctp = *((chan_tab_t **)ahwif->tx_chan);
-	dp = ctp->cur_ptr;
-	while (dp->dscr_cmd0 & DSCR_CMD0_V)
-		;
-	ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
-}
-
-static void au1xxx_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
-			      void *buf, unsigned int len)
-{
-	auide_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
-}
-
-static void au1xxx_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
-			       void *buf, unsigned int len)
-{
-	auide_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
-}
-#endif
-
-static void au1xxx_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	int mem_sttime = 0, mem_stcfg = au_readl(MEM_STCFG2);
-
-	switch (drive->pio_mode - XFER_PIO_0) {
-	case 0:
-		mem_sttime = SBC_IDE_TIMING(PIO0);
-
-		/* set configuration for RCS2# */
-		mem_stcfg |= TS_MASK;
-		mem_stcfg &= ~TCSOE_MASK;
-		mem_stcfg &= ~TOECS_MASK;
-		mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS;
-		break;
-
-	case 1:
-		mem_sttime = SBC_IDE_TIMING(PIO1);
-
-		/* set configuration for RCS2# */
-		mem_stcfg |= TS_MASK;
-		mem_stcfg &= ~TCSOE_MASK;
-		mem_stcfg &= ~TOECS_MASK;
-		mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS;
-		break;
-
-	case 2:
-		mem_sttime = SBC_IDE_TIMING(PIO2);
-
-		/* set configuration for RCS2# */
-		mem_stcfg &= ~TS_MASK;
-		mem_stcfg &= ~TCSOE_MASK;
-		mem_stcfg &= ~TOECS_MASK;
-		mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS;
-		break;
-
-	case 3:
-		mem_sttime = SBC_IDE_TIMING(PIO3);
-
-		/* set configuration for RCS2# */
-		mem_stcfg &= ~TS_MASK;
-		mem_stcfg &= ~TCSOE_MASK;
-		mem_stcfg &= ~TOECS_MASK;
-		mem_stcfg |= SBC_IDE_PIO3_TCSOE | SBC_IDE_PIO3_TOECS;
-
-		break;
-
-	case 4:
-		mem_sttime = SBC_IDE_TIMING(PIO4);
-
-		/* set configuration for RCS2# */
-		mem_stcfg &= ~TS_MASK;
-		mem_stcfg &= ~TCSOE_MASK;
-		mem_stcfg &= ~TOECS_MASK;
-		mem_stcfg |= SBC_IDE_PIO4_TCSOE | SBC_IDE_PIO4_TOECS;
-		break;
-	}
-
-	au_writel(mem_sttime,MEM_STTIME2);
-	au_writel(mem_stcfg,MEM_STCFG2);
-}
-
-static void auide_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	int mem_sttime = 0, mem_stcfg = au_readl(MEM_STCFG2);
-
-	switch (drive->dma_mode) {
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-	case XFER_MW_DMA_2:
-		mem_sttime = SBC_IDE_TIMING(MDMA2);
-
-		/* set configuration for RCS2# */
-		mem_stcfg &= ~TS_MASK;
-		mem_stcfg &= ~TCSOE_MASK;
-		mem_stcfg &= ~TOECS_MASK;
-		mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS;
-
-		break;
-	case XFER_MW_DMA_1:
-		mem_sttime = SBC_IDE_TIMING(MDMA1);
-
-		/* set configuration for RCS2# */
-		mem_stcfg &= ~TS_MASK;
-		mem_stcfg &= ~TCSOE_MASK;
-		mem_stcfg &= ~TOECS_MASK;
-		mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS;
-
-		break;
-	case XFER_MW_DMA_0:
-		mem_sttime = SBC_IDE_TIMING(MDMA0);
-
-		/* set configuration for RCS2# */
-		mem_stcfg |= TS_MASK;
-		mem_stcfg &= ~TCSOE_MASK;
-		mem_stcfg &= ~TOECS_MASK;
-		mem_stcfg |= SBC_IDE_MDMA0_TCSOE | SBC_IDE_MDMA0_TOECS;
-
-		break;
-#endif
-	}
-
-	au_writel(mem_sttime,MEM_STTIME2);
-	au_writel(mem_stcfg,MEM_STCFG2);
-}
-
-/*
- * Multi-Word DMA + DbDMA functions
- */
-
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-static int auide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	_auide_hwif *ahwif = &auide_hwif;
-	struct scatterlist *sg;
-	int i = cmd->sg_nents, count = 0;
-	int iswrite = !!(cmd->tf_flags & IDE_TFLAG_WRITE);
-
-	/* Save for interrupt context */
-	ahwif->drive = drive;
-
-	/* fill the descriptors */
-	sg = hwif->sg_table;
-	while (i && sg_dma_len(sg)) {
-		u32 cur_addr;
-		u32 cur_len;
-
-		cur_addr = sg_dma_address(sg);
-		cur_len = sg_dma_len(sg);
-
-		while (cur_len) {
-			u32 flags = DDMA_FLAGS_NOIE;
-			unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00;
-
-			if (++count >= PRD_ENTRIES) {
-				printk(KERN_WARNING "%s: DMA table too small\n",
-				       drive->name);
-				return 0;
-			}
-
-			/* Lets enable intr for the last descriptor only */
-			if (1==i)
-				flags = DDMA_FLAGS_IE;
-			else
-				flags = DDMA_FLAGS_NOIE;
-
-			if (iswrite) {
-				if (!au1xxx_dbdma_put_source(ahwif->tx_chan,
-					sg_phys(sg), tc, flags)) {
-					printk(KERN_ERR "%s failed %d\n", 
-					       __func__, __LINE__);
-				}
-			} else  {
-				if (!au1xxx_dbdma_put_dest(ahwif->rx_chan,
-					sg_phys(sg), tc, flags)) {
-					printk(KERN_ERR "%s failed %d\n", 
-					       __func__, __LINE__);
-				}
-			}
-
-			cur_addr += tc;
-			cur_len -= tc;
-		}
-		sg = sg_next(sg);
-		i--;
-	}
-
-	if (count)
-		return 1;
-
-	return 0; /* revert to PIO for this request */
-}
-
-static int auide_dma_end(ide_drive_t *drive)
-{
-	return 0;
-}
-
-static void auide_dma_start(ide_drive_t *drive )
-{
-}
-
-
-static int auide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
-{
-	if (auide_build_dmatable(drive, cmd) == 0)
-		return 1;
-
-	return 0;
-}
-
-static int auide_dma_test_irq(ide_drive_t *drive)
-{
-	/* If dbdma didn't execute the STOP command yet, the
-	 * active bit is still set
-	 */
-	drive->waiting_for_dma++;
-	if (drive->waiting_for_dma >= DMA_WAIT_TIMEOUT) {
-		printk(KERN_WARNING "%s: timeout waiting for ddma to complete\n",
-		       drive->name);
-		return 1;
-	}
-	udelay(10);
-	return 0;
-}
-
-static void auide_dma_host_set(ide_drive_t *drive, int on)
-{
-}
-
-static void auide_ddma_tx_callback(int irq, void *param)
-{
-}
-
-static void auide_ddma_rx_callback(int irq, void *param)
-{
-}
-#endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */
-
-static void auide_init_dbdma_dev(dbdev_tab_t *dev, u32 dev_id, u32 tsize,
-				 u32 devwidth, u32 flags, u32 regbase)
-{
-	dev->dev_id          = dev_id;
-	dev->dev_physaddr    = CPHYSADDR(regbase);
-	dev->dev_intlevel    = 0;
-	dev->dev_intpolarity = 0;
-	dev->dev_tsize       = tsize;
-	dev->dev_devwidth    = devwidth;
-	dev->dev_flags       = flags;
-}
-
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-static const struct ide_dma_ops au1xxx_dma_ops = {
-	.dma_host_set		= auide_dma_host_set,
-	.dma_setup		= auide_dma_setup,
-	.dma_start		= auide_dma_start,
-	.dma_end		= auide_dma_end,
-	.dma_test_irq		= auide_dma_test_irq,
-	.dma_lost_irq		= ide_dma_lost_irq,
-};
-
-static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
-{
-	_auide_hwif *auide = &auide_hwif;
-	dbdev_tab_t source_dev_tab, target_dev_tab;
-	u32 dev_id, tsize, devwidth, flags;
-
-	dev_id	 = hwif->ddma_id;
-
-	tsize    =  8; /*  1 */
-	devwidth = 32; /* 16 */
-
-#ifdef IDE_AU1XXX_BURSTMODE 
-	flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE;
-#else
-	flags = DEV_FLAGS_SYNC;
-#endif
-
-	/* setup dev_tab for tx channel */
-	auide_init_dbdma_dev(&source_dev_tab, dev_id, tsize, devwidth,
-			     DEV_FLAGS_OUT | flags, auide->regbase);
- 	auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
-
-	auide_init_dbdma_dev(&source_dev_tab, dev_id, tsize, devwidth,
-			     DEV_FLAGS_IN | flags, auide->regbase);
- 	auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
-	
-	/* We also need to add a target device for the DMA */
-	auide_init_dbdma_dev(&target_dev_tab, (u32)DSCR_CMD0_ALWAYS, tsize,
-			     devwidth, DEV_FLAGS_ANYUSE, auide->regbase);
-	auide->target_dev_id = au1xxx_ddma_add_device(&target_dev_tab);	
- 
-	/* Get a channel for TX */
-	auide->tx_chan = au1xxx_dbdma_chan_alloc(auide->target_dev_id,
-						 auide->tx_dev_id,
-						 auide_ddma_tx_callback,
-						 (void*)auide);
- 
-	/* Get a channel for RX */
-	auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id,
-						 auide->target_dev_id,
-						 auide_ddma_rx_callback,
-						 (void*)auide);
-
-	auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan,
-							     NUM_DESCRIPTORS);
-	auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan,
-							     NUM_DESCRIPTORS);
-
-	/* FIXME: check return value */
-	(void)ide_allocate_dma_engine(hwif);
-	
-	au1xxx_dbdma_start( auide->tx_chan );
-	au1xxx_dbdma_start( auide->rx_chan );
- 
-	return 0;
-} 
-#else
-static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
-{
-	_auide_hwif *auide = &auide_hwif;
-	dbdev_tab_t source_dev_tab;
-	int flags;
-
-#ifdef IDE_AU1XXX_BURSTMODE 
-	flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE;
-#else
-	flags = DEV_FLAGS_SYNC;
-#endif
-
-	/* setup dev_tab for tx channel */
-	auide_init_dbdma_dev(&source_dev_tab, (u32)DSCR_CMD0_ALWAYS, 8, 32,
-			     DEV_FLAGS_OUT | flags, auide->regbase);
- 	auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
-
-	auide_init_dbdma_dev(&source_dev_tab, (u32)DSCR_CMD0_ALWAYS, 8, 32,
-			     DEV_FLAGS_IN | flags, auide->regbase);
- 	auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
-	
-	/* Get a channel for TX */
-	auide->tx_chan = au1xxx_dbdma_chan_alloc(DSCR_CMD0_ALWAYS,
-						 auide->tx_dev_id,
-						 NULL,
-						 (void*)auide);
- 
-	/* Get a channel for RX */
-	auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id,
-						 DSCR_CMD0_ALWAYS,
-						 NULL,
-						 (void*)auide);
- 
-	auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan,
-							     NUM_DESCRIPTORS);
-	auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan,
-							     NUM_DESCRIPTORS);
- 
-	au1xxx_dbdma_start( auide->tx_chan );
-	au1xxx_dbdma_start( auide->rx_chan );
- 	
-	return 0;
-}
-#endif
-
-static void auide_setup_ports(struct ide_hw *hw, _auide_hwif *ahwif)
-{
-	int i;
-	unsigned long *ata_regs = hw->io_ports_array;
-
-	/* FIXME? */
-	for (i = 0; i < 8; i++)
-		*ata_regs++ = ahwif->regbase + (i << IDE_REG_SHIFT);
-
-	/* set the Alternative Status register */
-	*ata_regs = ahwif->regbase + (14 << IDE_REG_SHIFT);
-}
-
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
-static const struct ide_tp_ops au1xxx_tp_ops = {
-	.exec_command		= ide_exec_command,
-	.read_status		= ide_read_status,
-	.read_altstatus		= ide_read_altstatus,
-	.write_devctl		= ide_write_devctl,
-
-	.dev_select		= ide_dev_select,
-	.tf_load		= ide_tf_load,
-	.tf_read		= ide_tf_read,
-
-	.input_data		= au1xxx_input_data,
-	.output_data		= au1xxx_output_data,
-};
-#endif
-
-static const struct ide_port_ops au1xxx_port_ops = {
-	.set_pio_mode		= au1xxx_set_pio_mode,
-	.set_dma_mode		= auide_set_dma_mode,
-};
-
-static const struct ide_port_info au1xxx_port_info = {
-	.init_dma		= auide_ddma_init,
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
-	.tp_ops			= &au1xxx_tp_ops,
-#endif
-	.port_ops		= &au1xxx_port_ops,
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-	.dma_ops		= &au1xxx_dma_ops,
-#endif
-	.host_flags		= IDE_HFLAG_POST_SET_MODE |
-				  IDE_HFLAG_NO_IO_32BIT |
-				  IDE_HFLAG_UNMASK_IRQS,
-	.pio_mask		= ATA_PIO4,
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-	.mwdma_mask		= ATA_MWDMA2,
-#endif
-	.chipset		= ide_au1xxx,
-};
-
-static int au_ide_probe(struct platform_device *dev)
-{
-	_auide_hwif *ahwif = &auide_hwif;
-	struct resource *res;
-	struct ide_host *host;
-	int ret = 0;
-	struct ide_hw hw, *hws[] = { &hw };
-
-#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
-	char *mode = "MWDMA2";
-#elif defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA)
-	char *mode = "PIO+DDMA(offload)";
-#endif
-
-	memset(&auide_hwif, 0, sizeof(_auide_hwif));
-	ahwif->irq = platform_get_irq(dev, 0);
-
-	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-
-	if (res == NULL) {
-		pr_debug("%s %d: no base address\n", DRV_NAME, dev->id);
-		ret = -ENODEV;
-		goto out;
-	}
-	if (ahwif->irq < 0) {
-		pr_debug("%s %d: no IRQ\n", DRV_NAME, dev->id);
-		ret = -ENODEV;
-		goto out;
-	}
-
-	if (!request_mem_region(res->start, resource_size(res), dev->name)) {
-		pr_debug("%s: request_mem_region failed\n", DRV_NAME);
-		ret =  -EBUSY;
-		goto out;
-	}
-
-	ahwif->regbase = (u32)ioremap(res->start, resource_size(res));
-	if (ahwif->regbase == 0) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	res = platform_get_resource(dev, IORESOURCE_DMA, 0);
-	if (!res) {
-		pr_debug("%s: no DDMA ID resource\n", DRV_NAME);
-		ret = -ENODEV;
-		goto out;
-	}
-	ahwif->ddma_id = res->start;
-
-	memset(&hw, 0, sizeof(hw));
-	auide_setup_ports(&hw, ahwif);
-	hw.irq = ahwif->irq;
-	hw.dev = &dev->dev;
-
-	ret = ide_host_add(&au1xxx_port_info, hws, 1, &host);
-	if (ret)
-		goto out;
-
-	auide_hwif.hwif = host->ports[0];
-
-	platform_set_drvdata(dev, host);
-
-	printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode );
-
- out:
-	return ret;
-}
-
-static int au_ide_remove(struct platform_device *dev)
-{
-	struct resource *res;
-	struct ide_host *host = platform_get_drvdata(dev);
-	_auide_hwif *ahwif = &auide_hwif;
-
-	ide_host_remove(host);
-
-	iounmap((void *)ahwif->regbase);
-
-	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	release_mem_region(res->start, resource_size(res));
-
-	return 0;
-}
-
-static struct platform_driver au1200_ide_driver = {
-	.driver = {
-		.name		= "au1200-ide",
-	},
-	.probe 		= au_ide_probe,
-	.remove		= au_ide_remove,
-};
-
-module_platform_driver(au1200_ide_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("AU1200 IDE driver");
-- 
2.24.1

Re: [PATCH 1/3] ide: remove no longer used au1xxx-ide driver

[David Miller]

From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Thu, 16 Jan 2020 13:29:36 +0100

> Commit 54ff4a1d1732 ("MIPS: Alchemy: pata_platform for DB1200")
> from year 2014 converted the only user of au1xxx-ide IDE host
> driver (MIPS Alchemy DB1200 platform) to use pata_platform
> libata host driver instead. This patch removes dead au1xxx-ide
> driver code.
> 
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Acked-by: David S. Miller <davem@davemloft.net>

[PATCH 2/3] MIPS: Alchemy: remove no longer used au1xxx_ide.h header

[Bartlomiej Zolnierkiewicz]

Since the only user of this header (au1xxx-ide IDE host driver) is
now gone it can also be removed.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
 .../mips/include/asm/mach-au1x00/au1xxx_ide.h | 178 ------------------
 1 file changed, 178 deletions(-)
 delete mode 100644 arch/mips/include/asm/mach-au1x00/au1xxx_ide.h

diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_ide.h b/arch/mips/include/asm/mach-au1x00/au1xxx_ide.h
deleted file mode 100644
index bb91b8923a49..000000000000
--- a/arch/mips/include/asm/mach-au1x00/au1xxx_ide.h
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * include/asm-mips/mach-au1x00/au1xxx_ide.h  version 01.30.00  Aug. 02 2005
- *
- * BRIEF MODULE DESCRIPTION
- * AMD Alchemy Au1xxx IDE interface routines over the Static Bus
- *
- * Copyright (c) 2003-2005 AMD, Personal Connectivity Solutions
- *
- * 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 SOFTWARE IS PROVIDED ``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.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE
- *	 Interface and Linux Device Driver" Application Note.
- */
-
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-#define DMA_WAIT_TIMEOUT	100
-#define NUM_DESCRIPTORS		PRD_ENTRIES
-#else /* CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA */
-#define NUM_DESCRIPTORS		2
-#endif
-
-#ifndef AU1XXX_ATA_RQSIZE
-#define AU1XXX_ATA_RQSIZE	128
-#endif
-
-/* Disable Burstable-Support for DBDMA */
-#ifndef CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON
-#define CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON	0
-#endif
-
-typedef struct {
-	u32			tx_dev_id, rx_dev_id, target_dev_id;
-	u32			tx_chan, rx_chan;
-	void			*tx_desc_head, *rx_desc_head;
-	ide_hwif_t		*hwif;
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-	ide_drive_t		*drive;
-	struct dbdma_cmd	*dma_table_cpu;
-	dma_addr_t		dma_table_dma;
-#endif
-	int			irq;
-	u32			regbase;
-	int			ddma_id;
-} _auide_hwif;
-
-/******************************************************************************/
-/* PIO Mode timing calculation :					      */
-/*									      */
-/* Static Bus Spec   ATA Spec						      */
-/*	Tcsoe	   =	t1						      */
-/*	Toecs	   =	t9						      */
-/*	Twcs	   =	t9						      */
-/*	Tcsh	   =	t2i | t2					      */
-/*	Tcsoff	   =	t2i | t2					      */
-/*	Twp	   =	t2						      */
-/*	Tcsw	   =	t1						      */
-/*	Tpm	   =	0						      */
-/*	Ta	   =	t1+t2						      */
-/******************************************************************************/
-
-#define TCSOE_MASK		(0x07 << 29)
-#define TOECS_MASK		(0x07 << 26)
-#define TWCS_MASK		(0x07 << 28)
-#define TCSH_MASK		(0x0F << 24)
-#define TCSOFF_MASK		(0x07 << 20)
-#define TWP_MASK		(0x3F << 14)
-#define TCSW_MASK		(0x0F << 10)
-#define TPM_MASK		(0x0F << 6)
-#define TA_MASK			(0x3F << 0)
-#define TS_MASK			(1 << 8)
-
-/* Timing parameters PIO mode 0 */
-#define SBC_IDE_PIO0_TCSOE	(0x04 << 29)
-#define SBC_IDE_PIO0_TOECS	(0x01 << 26)
-#define SBC_IDE_PIO0_TWCS	(0x02 << 28)
-#define SBC_IDE_PIO0_TCSH	(0x08 << 24)
-#define SBC_IDE_PIO0_TCSOFF	(0x07 << 20)
-#define SBC_IDE_PIO0_TWP	(0x10 << 14)
-#define SBC_IDE_PIO0_TCSW	(0x04 << 10)
-#define SBC_IDE_PIO0_TPM	(0x00 << 6)
-#define SBC_IDE_PIO0_TA		(0x15 << 0)
-/* Timing parameters PIO mode 1 */
-#define SBC_IDE_PIO1_TCSOE	(0x03 << 29)
-#define SBC_IDE_PIO1_TOECS	(0x01 << 26)
-#define SBC_IDE_PIO1_TWCS	(0x01 << 28)
-#define SBC_IDE_PIO1_TCSH	(0x06 << 24)
-#define SBC_IDE_PIO1_TCSOFF	(0x06 << 20)
-#define SBC_IDE_PIO1_TWP	(0x08 << 14)
-#define SBC_IDE_PIO1_TCSW	(0x03 << 10)
-#define SBC_IDE_PIO1_TPM	(0x00 << 6)
-#define SBC_IDE_PIO1_TA		(0x0B << 0)
-/* Timing parameters PIO mode 2 */
-#define SBC_IDE_PIO2_TCSOE	(0x05 << 29)
-#define SBC_IDE_PIO2_TOECS	(0x01 << 26)
-#define SBC_IDE_PIO2_TWCS	(0x01 << 28)
-#define SBC_IDE_PIO2_TCSH	(0x07 << 24)
-#define SBC_IDE_PIO2_TCSOFF	(0x07 << 20)
-#define SBC_IDE_PIO2_TWP	(0x1F << 14)
-#define SBC_IDE_PIO2_TCSW	(0x05 << 10)
-#define SBC_IDE_PIO2_TPM	(0x00 << 6)
-#define SBC_IDE_PIO2_TA		(0x22 << 0)
-/* Timing parameters PIO mode 3 */
-#define SBC_IDE_PIO3_TCSOE	(0x05 << 29)
-#define SBC_IDE_PIO3_TOECS	(0x01 << 26)
-#define SBC_IDE_PIO3_TWCS	(0x01 << 28)
-#define SBC_IDE_PIO3_TCSH	(0x0D << 24)
-#define SBC_IDE_PIO3_TCSOFF	(0x0D << 20)
-#define SBC_IDE_PIO3_TWP	(0x15 << 14)
-#define SBC_IDE_PIO3_TCSW	(0x05 << 10)
-#define SBC_IDE_PIO3_TPM	(0x00 << 6)
-#define SBC_IDE_PIO3_TA		(0x1A << 0)
-/* Timing parameters PIO mode 4 */
-#define SBC_IDE_PIO4_TCSOE	(0x04 << 29)
-#define SBC_IDE_PIO4_TOECS	(0x01 << 26)
-#define SBC_IDE_PIO4_TWCS	(0x01 << 28)
-#define SBC_IDE_PIO4_TCSH	(0x04 << 24)
-#define SBC_IDE_PIO4_TCSOFF	(0x04 << 20)
-#define SBC_IDE_PIO4_TWP	(0x0D << 14)
-#define SBC_IDE_PIO4_TCSW	(0x03 << 10)
-#define SBC_IDE_PIO4_TPM	(0x00 << 6)
-#define SBC_IDE_PIO4_TA		(0x12 << 0)
-/* Timing parameters MDMA mode 0 */
-#define SBC_IDE_MDMA0_TCSOE	(0x03 << 29)
-#define SBC_IDE_MDMA0_TOECS	(0x01 << 26)
-#define SBC_IDE_MDMA0_TWCS	(0x01 << 28)
-#define SBC_IDE_MDMA0_TCSH	(0x07 << 24)
-#define SBC_IDE_MDMA0_TCSOFF	(0x07 << 20)
-#define SBC_IDE_MDMA0_TWP	(0x0C << 14)
-#define SBC_IDE_MDMA0_TCSW	(0x03 << 10)
-#define SBC_IDE_MDMA0_TPM	(0x00 << 6)
-#define SBC_IDE_MDMA0_TA	(0x0F << 0)
-/* Timing parameters MDMA mode 1 */
-#define SBC_IDE_MDMA1_TCSOE	(0x05 << 29)
-#define SBC_IDE_MDMA1_TOECS	(0x01 << 26)
-#define SBC_IDE_MDMA1_TWCS	(0x01 << 28)
-#define SBC_IDE_MDMA1_TCSH	(0x05 << 24)
-#define SBC_IDE_MDMA1_TCSOFF	(0x05 << 20)
-#define SBC_IDE_MDMA1_TWP	(0x0F << 14)
-#define SBC_IDE_MDMA1_TCSW	(0x05 << 10)
-#define SBC_IDE_MDMA1_TPM	(0x00 << 6)
-#define SBC_IDE_MDMA1_TA	(0x15 << 0)
-/* Timing parameters MDMA mode 2 */
-#define SBC_IDE_MDMA2_TCSOE	(0x04 << 29)
-#define SBC_IDE_MDMA2_TOECS	(0x01 << 26)
-#define SBC_IDE_MDMA2_TWCS	(0x01 << 28)
-#define SBC_IDE_MDMA2_TCSH	(0x04 << 24)
-#define SBC_IDE_MDMA2_TCSOFF	(0x04 << 20)
-#define SBC_IDE_MDMA2_TWP	(0x0D << 14)
-#define SBC_IDE_MDMA2_TCSW	(0x04 << 10)
-#define SBC_IDE_MDMA2_TPM	(0x00 << 6)
-#define SBC_IDE_MDMA2_TA	(0x12 << 0)
-
-#define SBC_IDE_TIMING(mode) \
-	(SBC_IDE_##mode##_TWCS | \
-	 SBC_IDE_##mode##_TCSH | \
-	 SBC_IDE_##mode##_TCSOFF | \
-	 SBC_IDE_##mode##_TWP | \
-	 SBC_IDE_##mode##_TCSW | \
-	 SBC_IDE_##mode##_TPM | \
-	 SBC_IDE_##mode##_TA)
-- 
2.24.1

[PATCH 3/3] docs: mips: remove no longer needed au1xxx_ide.rst documentation

[Bartlomiej Zolnierkiewicz]

Since the au1xxx-ide IDE host driver is no longer needed its documentation
can be removed.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
 Documentation/mips/au1xxx_ide.rst | 130 ------------------------------
 Documentation/mips/index.rst      |   2 -
 2 files changed, 132 deletions(-)
 delete mode 100644 Documentation/mips/au1xxx_ide.rst

diff --git a/Documentation/mips/au1xxx_ide.rst b/Documentation/mips/au1xxx_ide.rst
deleted file mode 100644
index 2f9c2cff6738..000000000000
--- a/Documentation/mips/au1xxx_ide.rst
+++ /dev/null
@@ -1,130 +0,0 @@
-.. include:: <isonum.txt>
-
-======================
-MIPS AU1XXX IDE driver
-======================
-
-Released 2005-07-15
-
-About
-=====
-
-This file describes the 'drivers/ide/au1xxx-ide.c', related files and the
-services they provide.
-
-If you are short in patience and just want to know how to add your hard disc to
-the white or black list, go to the 'ADD NEW HARD DISC TO WHITE OR BLACK LIST'
-section.
-
-
-License
-=======
-
-:Copyright: |copy| 2003-2005 AMD, Personal Connectivity Solutions
-
-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 SOFTWARE IS PROVIDED ``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.
-
-You should have received a copy of the GNU General Public License along with
-this program; if not, write to the Free Software Foundation, Inc.,
-675 Mass Ave, Cambridge, MA 02139, USA.
-
-Note:
-      for more information, please refer "AMD Alchemy Au1200/Au1550 IDE
-      Interface and Linux Device Driver" Application Note.
-
-
-Files, Configs and Compatibility
-================================
-
-Two files are introduced:
-
-  a) 'arch/mips/include/asm/mach-au1x00/au1xxx_ide.h'
-     contains : struct _auide_hwif
-
-                - timing parameters for PIO mode 0/1/2/3/4
-                - timing parameters for MWDMA 0/1/2
-
-  b) 'drivers/ide/mips/au1xxx-ide.c'
-     contains the functionality of the AU1XXX IDE driver
-
-Following extra configs variables are introduced:
-
-  CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
-	- enable the PIO+DBDMA mode
-  CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-	- enable the MWDMA mode
-
-
-Supported IDE Modes
-===================
-
-The AU1XXX IDE driver supported all PIO modes - PIO mode 0/1/2/3/4 - and all
-MWDMA modes - MWDMA 0/1/2 -. There is no support for SWDMA and UDMA mode.
-
-To change the PIO mode use the program hdparm with option -p, e.g.
-'hdparm -p0 [device]' for PIO mode 0. To enable the MWDMA mode use the option
--X, e.g. 'hdparm -X32 [device]' for MWDMA mode 0.
-
-
-Performance Configurations
-==========================
-
-If the used system doesn't need USB support enable the following kernel
-configs::
-
-    CONFIG_IDE=y
-    CONFIG_BLK_DEV_IDE=y
-    CONFIG_IDE_GENERIC=y
-    CONFIG_BLK_DEV_IDEPCI=y
-    CONFIG_BLK_DEV_GENERIC=y
-    CONFIG_BLK_DEV_IDEDMA_PCI=y
-    CONFIG_BLK_DEV_IDE_AU1XXX=y
-    CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA=y
-    CONFIG_BLK_DEV_IDEDMA=y
-
-Also define 'IDE_AU1XXX_BURSTMODE' in 'drivers/ide/mips/au1xxx-ide.c' to enable
-the burst support on DBDMA controller.
-
-If the used system need the USB support enable the following kernel configs for
-high IDE to USB throughput.
-
-::
-
-    CONFIG_IDE_GENERIC=y
-    CONFIG_BLK_DEV_IDEPCI=y
-    CONFIG_BLK_DEV_GENERIC=y
-    CONFIG_BLK_DEV_IDEDMA_PCI=y
-    CONFIG_BLK_DEV_IDE_AU1XXX=y
-    CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA=y
-    CONFIG_BLK_DEV_IDEDMA=y
-
-Also undefine 'IDE_AU1XXX_BURSTMODE' in 'drivers/ide/mips/au1xxx-ide.c' to
-disable the burst support on DBDMA controller.
-
-
-Acknowledgments
-===============
-
-These drivers wouldn't have been done without the base of kernel 2.4.x AU1XXX
-IDE driver from AMD.
-
-Additional input also from:
-Matthias Lenk <matthias.lenk@amd.com>
-
-Happy hacking!
-
-Enrico Walther <enrico.walther@amd.com>
diff --git a/Documentation/mips/index.rst b/Documentation/mips/index.rst
index a93c2f65884c..d5ad8c00f0bd 100644
--- a/Documentation/mips/index.rst
+++ b/Documentation/mips/index.rst
@@ -10,8 +10,6 @@ MIPS-specific Documentation
 
    ingenic-tcu
 
-   au1xxx_ide
-
 .. only::  subproject and html
 
    Indices
-- 
2.24.1

Re: [PATCH 3/3] docs: mips: remove no longer needed au1xxx_ide.rst documentation

[Bartlomiej Zolnierkiewicz]

Hi Jonathan,

Gentle ping.

Can we get your ACK to merge this patch through MIPS (or IDE) tree?

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

On 1/16/20 1:29 PM, Bartlomiej Zolnierkiewicz wrote:
> Since the au1xxx-ide IDE host driver is no longer needed its documentation
> can be removed.
> 
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> ---
>  Documentation/mips/au1xxx_ide.rst | 130 ------------------------------
>  Documentation/mips/index.rst      |   2 -
>  2 files changed, 132 deletions(-)
>  delete mode 100644 Documentation/mips/au1xxx_ide.rst
> 
> diff --git a/Documentation/mips/au1xxx_ide.rst b/Documentation/mips/au1xxx_ide.rst
> deleted file mode 100644
> index 2f9c2cff6738..000000000000
> --- a/Documentation/mips/au1xxx_ide.rst
> +++ /dev/null
> @@ -1,130 +0,0 @@
> -.. include:: <isonum.txt>
> -
> -======================
> -MIPS AU1XXX IDE driver
> -======================
> -
> -Released 2005-07-15
> -
> -About
> -=====
> -
> -This file describes the 'drivers/ide/au1xxx-ide.c', related files and the
> -services they provide.
> -
> -If you are short in patience and just want to know how to add your hard disc to
> -the white or black list, go to the 'ADD NEW HARD DISC TO WHITE OR BLACK LIST'
> -section.
> -
> -
> -License
> -=======
> -
> -:Copyright: |copy| 2003-2005 AMD, Personal Connectivity Solutions
> -
> -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 SOFTWARE IS PROVIDED ``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.
> -
> -You should have received a copy of the GNU General Public License along with
> -this program; if not, write to the Free Software Foundation, Inc.,
> -675 Mass Ave, Cambridge, MA 02139, USA.
> -
> -Note:
> -      for more information, please refer "AMD Alchemy Au1200/Au1550 IDE
> -      Interface and Linux Device Driver" Application Note.
> -
> -
> -Files, Configs and Compatibility
> -================================
> -
> -Two files are introduced:
> -
> -  a) 'arch/mips/include/asm/mach-au1x00/au1xxx_ide.h'
> -     contains : struct _auide_hwif
> -
> -                - timing parameters for PIO mode 0/1/2/3/4
> -                - timing parameters for MWDMA 0/1/2
> -
> -  b) 'drivers/ide/mips/au1xxx-ide.c'
> -     contains the functionality of the AU1XXX IDE driver
> -
> -Following extra configs variables are introduced:
> -
> -  CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
> -	- enable the PIO+DBDMA mode
> -  CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
> -	- enable the MWDMA mode
> -
> -
> -Supported IDE Modes
> -===================
> -
> -The AU1XXX IDE driver supported all PIO modes - PIO mode 0/1/2/3/4 - and all
> -MWDMA modes - MWDMA 0/1/2 -. There is no support for SWDMA and UDMA mode.
> -
> -To change the PIO mode use the program hdparm with option -p, e.g.
> -'hdparm -p0 [device]' for PIO mode 0. To enable the MWDMA mode use the option
> --X, e.g. 'hdparm -X32 [device]' for MWDMA mode 0.
> -
> -
> -Performance Configurations
> -==========================
> -
> -If the used system doesn't need USB support enable the following kernel
> -configs::
> -
> -    CONFIG_IDE=y
> -    CONFIG_BLK_DEV_IDE=y
> -    CONFIG_IDE_GENERIC=y
> -    CONFIG_BLK_DEV_IDEPCI=y
> -    CONFIG_BLK_DEV_GENERIC=y
> -    CONFIG_BLK_DEV_IDEDMA_PCI=y
> -    CONFIG_BLK_DEV_IDE_AU1XXX=y
> -    CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA=y
> -    CONFIG_BLK_DEV_IDEDMA=y
> -
> -Also define 'IDE_AU1XXX_BURSTMODE' in 'drivers/ide/mips/au1xxx-ide.c' to enable
> -the burst support on DBDMA controller.
> -
> -If the used system need the USB support enable the following kernel configs for
> -high IDE to USB throughput.
> -
> -::
> -
> -    CONFIG_IDE_GENERIC=y
> -    CONFIG_BLK_DEV_IDEPCI=y
> -    CONFIG_BLK_DEV_GENERIC=y
> -    CONFIG_BLK_DEV_IDEDMA_PCI=y
> -    CONFIG_BLK_DEV_IDE_AU1XXX=y
> -    CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA=y
> -    CONFIG_BLK_DEV_IDEDMA=y
> -
> -Also undefine 'IDE_AU1XXX_BURSTMODE' in 'drivers/ide/mips/au1xxx-ide.c' to
> -disable the burst support on DBDMA controller.
> -
> -
> -Acknowledgments
> -===============
> -
> -These drivers wouldn't have been done without the base of kernel 2.4.x AU1XXX
> -IDE driver from AMD.
> -
> -Additional input also from:
> -Matthias Lenk <matthias.lenk@amd.com>
> -
> -Happy hacking!
> -
> -Enrico Walther <enrico.walther@amd.com>
> diff --git a/Documentation/mips/index.rst b/Documentation/mips/index.rst
> index a93c2f65884c..d5ad8c00f0bd 100644
> --- a/Documentation/mips/index.rst
> +++ b/Documentation/mips/index.rst
> @@ -10,8 +10,6 @@ MIPS-specific Documentation
>  
>     ingenic-tcu
>  
> -   au1xxx_ide
> -
>  .. only::  subproject and html
>  
>     Indices
> 

Re: [PATCH 0/3] ide/MIPS/docs: remove no longer used au1xxx-ide driver

[Manuel Lauss]

On Thu, Jan 16, 2020 at 1:30 PM Bartlomiej Zolnierkiewicz
<b.zolnierkie@samsung.com> wrote:
> Commit 54ff4a1d1732 ("MIPS: Alchemy: pata_platform for DB1200")
> from year 2014 converted the only user of au1xxx-ide IDE host
> driver (MIPS Alchemy DB1200 platform) to use pata_platform libata
> host driver instead. This patch series removes dead au1xxx-ide
> driver code & co.

For the whole series:
Acked-By: Manuel Lauss <manuel.lauss@gmail.com>

Good riddance. This driver really only worked well with the db1200
board set to a specific
cpu clock speed.

Best regards,
      Manuel

Re: [PATCH 0/3] ide/MIPS/docs: remove no longer used au1xxx-ide driver

[Christoph Hellwig]

Always great to kill off another legacy ide driver:

Acked-by: Christoph Hellwig <hch@lst.de>

Re: [PATCH 0/3] ide/MIPS/docs: remove no longer used au1xxx-ide driver

[Paul Burton]

Hi David & Jonathan,

On Thu, Jan 16, 2020 at 01:29:35PM +0100, Bartlomiej Zolnierkiewicz wrote:
> Since patch #2 depends on patch #1 (and it is also the best to
> apply patch #3 after driver code removal) it would be probably
> easiest to merge everything through MIPS tree (after getting
> necessary ACKs, from David for the first patch and Jonathan for
> the third one).

Does that sound good to you? If so could you ack the patches as
appropriate?

Alternatively I have no problem if you'd rather take this through the
IDE tree David, in which case for patch 2:

    Acked-by: Paul Burton <paulburton@kernel.org>

Thanks,
    Paul