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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-23 16:08:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-23 16:08:11 -0700
commit969907a956752f88dde4aa23fa8c033b9a939aee (patch)
treee131db71d1db9a3b8591d718e8c5e897daadccec
parentea541686d8454efac4f2b5c0767affb12d4b6a52 (diff)
parentfa3fd7204e1a4e8538117f0edbfecd4132276860 (diff)
downloadlinux-linaro-969907a956752f88dde4aa23fa8c033b9a939aee.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: ide: drivers/ide/generic.c -> drivers/ide/ide-pci-generic.c ide-disk: set non-rotational queue flag for SSD and CF devices ide-cd: add TEAC CD-224E to the NO_AUTOCLOSE list ide: Add tx4938ide driver (v2) TXx9: Add TX4938 ATA support (v3) ide: Add tx4939ide driver (v6) ide: two more pci_ioremap_bar() conversions pci: use pci_ioremap_bar() in drivers/ide sgiioc4: use ide_host_add() (take 2) sgiioc4: fix error cleanup path (take 2)
-rw-r--r--arch/mips/include/asm/txx9/tx4938.h13
-rw-r--r--arch/mips/txx9/generic/setup_tx4938.c47
-rw-r--r--arch/mips/txx9/rbtx4938/setup.c1
-rw-r--r--drivers/ide/Kconfig10
-rw-r--r--drivers/ide/Makefile4
-rw-r--r--drivers/ide/ide-cd.c1
-rw-r--r--drivers/ide/ide-disk.c8
-rw-r--r--drivers/ide/ide-pci-generic.c (renamed from drivers/ide/generic.c)0
-rw-r--r--drivers/ide/scc_pata.c10
-rw-r--r--drivers/ide/sgiioc4.c24
-rw-r--r--drivers/ide/siimage.c2
-rw-r--r--drivers/ide/tx4938ide.c310
-rw-r--r--drivers/ide/tx4939ide.c754
13 files changed, 1157 insertions, 27 deletions
diff --git a/arch/mips/include/asm/txx9/tx4938.h b/arch/mips/include/asm/txx9/tx4938.h
index 989e7751135..0b068154054 100644
--- a/arch/mips/include/asm/txx9/tx4938.h
+++ b/arch/mips/include/asm/txx9/tx4938.h
@@ -292,4 +292,17 @@ void tx4938_setup_pcierr_irq(void);
void tx4938_irq_init(void);
void tx4938_mtd_init(int ch);
+struct tx4938ide_platform_info {
+ /*
+ * I/O port shift, for platforms with ports that are
+ * constantly spaced and need larger than the 1-byte
+ * spacing used by ata_std_ports().
+ */
+ unsigned int ioport_shift;
+ unsigned int gbus_clock; /* 0 means no PIO mode tuning. */
+ unsigned int ebus_ch;
+};
+
+void tx4938_ata_init(unsigned int irq, unsigned int shift, int tune);
+
#endif
diff --git a/arch/mips/txx9/generic/setup_tx4938.c b/arch/mips/txx9/generic/setup_tx4938.c
index af724e53ef9..25819ff1c35 100644
--- a/arch/mips/txx9/generic/setup_tx4938.c
+++ b/arch/mips/txx9/generic/setup_tx4938.c
@@ -16,6 +16,7 @@
#include <linux/param.h>
#include <linux/ptrace.h>
#include <linux/mtd/physmap.h>
+#include <linux/platform_device.h>
#include <asm/reboot.h>
#include <asm/traps.h>
#include <asm/txx9irq.h>
@@ -335,6 +336,52 @@ void __init tx4938_mtd_init(int ch)
txx9_physmap_flash_init(ch, start, size, &pdata);
}
+void __init tx4938_ata_init(unsigned int irq, unsigned int shift, int tune)
+{
+ struct platform_device *pdev;
+ struct resource res[] = {
+ {
+ /* .start and .end are filled in later */
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = irq,
+ .flags = IORESOURCE_IRQ,
+ },
+ };
+ struct tx4938ide_platform_info pdata = {
+ .ioport_shift = shift,
+ /*
+ * The IDE driver should not change bus timings if other ISA
+ * devices existed.
+ */
+ .gbus_clock = tune ? txx9_gbus_clock : 0,
+ };
+ u64 ebccr;
+ int i;
+
+ if ((__raw_readq(&tx4938_ccfgptr->pcfg) &
+ (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL))
+ != TX4938_PCFG_ATA_SEL)
+ return;
+ for (i = 0; i < 8; i++) {
+ /* check EBCCRn.ISA, EBCCRn.BSZ, EBCCRn.ME */
+ ebccr = __raw_readq(&tx4938_ebuscptr->cr[i]);
+ if ((ebccr & 0x00f00008) == 0x00e00008)
+ break;
+ }
+ if (i == 8)
+ return;
+ pdata.ebus_ch = i;
+ res[0].start = ((ebccr >> 48) << 20) + 0x10000;
+ res[0].end = res[0].start + 0x20000 - 1;
+ pdev = platform_device_alloc("tx4938ide", -1);
+ if (!pdev ||
+ platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
+ platform_device_add_data(pdev, &pdata, sizeof(pdata)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+}
+
static void __init tx4938_stop_unused_modules(void)
{
__u64 pcfg, rst = 0, ckd = 0;
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
index e077cc4d3a5..547ff2920bf 100644
--- a/arch/mips/txx9/rbtx4938/setup.c
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -352,6 +352,7 @@ static void __init rbtx4938_device_init(void)
rbtx4938_ne_init();
tx4938_wdt_init();
rbtx4938_mtd_init();
+ tx4938_ata_init(RBTX4938_IRQ_IOC_ATA, 0, 1);
txx9_iocled_init(RBTX4938_LED_ADDR - IO_BASE, -1, 8, 1, "green", NULL);
}
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index a820ca6fc32..6d7401772a8 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -720,6 +720,16 @@ config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ
default "128"
depends on BLK_DEV_IDE_AU1XXX
+config BLK_DEV_IDE_TX4938
+ tristate "TX4938 internal IDE support"
+ depends on SOC_TX4938
+ select IDE_TIMINGS
+
+config BLK_DEV_IDE_TX4939
+ tristate "TX4939 internal IDE support"
+ depends on SOC_TX4939
+ select BLK_DEV_IDEDMA_SFF
+
config IDE_ARM
tristate "ARM IDE support"
depends on ARM && (ARCH_CLPS7500 || ARCH_RPC || ARCH_SHARK)
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index 9cf92ac939d..7818d402b18 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -68,7 +68,6 @@ obj-$(CONFIG_BLK_DEV_VIA82CXXX) += via82cxxx.o
# Must appear at the end of the block
obj-$(CONFIG_BLK_DEV_GENERIC) += ide-pci-generic.o
-ide-pci-generic-y += generic.o
obj-$(CONFIG_IDEPCI_PCIBUS_ORDER) += ide-scan-pci.o
@@ -111,3 +110,6 @@ obj-$(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/ide-cd.c b/drivers/ide/ide-cd.c
index 133afd09843..48b5eda3ab4 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1966,6 +1966,7 @@ static const struct cd_list_entry ide_cd_quirks_list[] = {
{ "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
{ "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
{ "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE },
+ { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE },
{ NULL, NULL, 0 }
};
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 223750c1b5a..e5adebe8ac2 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -600,6 +600,7 @@ static int ide_disk_check(ide_drive_t *drive, const char *s)
static void ide_disk_setup(ide_drive_t *drive)
{
struct ide_disk_obj *idkp = drive->driver_data;
+ struct request_queue *q = drive->queue;
ide_hwif_t *hwif = drive->hwif;
u16 *id = drive->id;
char *m = (char *)&id[ATA_ID_PROD];
@@ -626,11 +627,14 @@ static void ide_disk_setup(ide_drive_t *drive)
if (max_s > hwif->rqsize)
max_s = hwif->rqsize;
- blk_queue_max_sectors(drive->queue, max_s);
+ blk_queue_max_sectors(q, max_s);
}
printk(KERN_INFO "%s: max request size: %dKiB\n", drive->name,
- drive->queue->max_sectors / 2);
+ q->max_sectors / 2);
+
+ if (ata_id_is_ssd(id) || ata_id_is_cfa(id))
+ queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
/* calculate drive capacity, and select LBA if possible */
ide_disk_get_capacity(drive);
diff --git a/drivers/ide/generic.c b/drivers/ide/ide-pci-generic.c
index 474f96a7c07..474f96a7c07 100644
--- a/drivers/ide/generic.c
+++ b/drivers/ide/ide-pci-generic.c
diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
index 49f163aa51e..f26aa5d54ef 100644
--- a/drivers/ide/scc_pata.c
+++ b/drivers/ide/scc_pata.c
@@ -536,10 +536,6 @@ static u8 scc_udma_filter(ide_drive_t *drive)
static int setup_mmio_scc (struct pci_dev *dev, const char *name)
{
- unsigned long ctl_base = pci_resource_start(dev, 0);
- unsigned long dma_base = pci_resource_start(dev, 1);
- unsigned long ctl_size = pci_resource_len(dev, 0);
- unsigned long dma_size = pci_resource_len(dev, 1);
void __iomem *ctl_addr;
void __iomem *dma_addr;
int i, ret;
@@ -557,10 +553,12 @@ static int setup_mmio_scc (struct pci_dev *dev, const char *name)
return ret;
}
- if ((ctl_addr = ioremap(ctl_base, ctl_size)) == NULL)
+ ctl_addr = pci_ioremap_bar(dev, 0);
+ if (!ctl_addr)
goto fail_0;
- if ((dma_addr = ioremap(dma_base, dma_size)) == NULL)
+ dma_addr = pci_ioremap_bar(dev, 1);
+ if (!dma_addr)
goto fail_1;
pci_set_master(dev);
diff --git a/drivers/ide/sgiioc4.c b/drivers/ide/sgiioc4.c
index 8af9b23499f..7defa0ae201 100644
--- a/drivers/ide/sgiioc4.c
+++ b/drivers/ide/sgiioc4.c
@@ -567,14 +567,12 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
unsigned long cmd_base, irqport;
unsigned long bar0, cmd_phys_base, ctl;
void __iomem *virt_base;
- struct ide_host *host;
hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
- struct ide_port_info d = sgiioc4_port_info;
int rc;
/* Get the CmdBlk and CtrlBlk Base Registers */
bar0 = pci_resource_start(dev, 0);
- virt_base = ioremap(bar0, pci_resource_len(dev, 0));
+ virt_base = pci_ioremap_bar(dev, 0);
if (virt_base == NULL) {
printk(KERN_ERR "%s: Unable to remap BAR 0 address: 0x%lx\n",
DRV_NAME, bar0);
@@ -590,7 +588,8 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
printk(KERN_ERR "%s %s -- ERROR: addresses 0x%08lx to 0x%08lx "
"already in use\n", DRV_NAME, pci_name(dev),
cmd_phys_base, cmd_phys_base + IOC4_CMD_CTL_BLK_SIZE);
- return -EBUSY;
+ rc = -EBUSY;
+ goto req_mem_rgn_err;
}
/* Initialize the IO registers */
@@ -603,21 +602,12 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
/* Initializing chipset IRQ Registers */
writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4));
- host = ide_host_alloc(&d, hws);
- if (host == NULL) {
- rc = -ENOMEM;
- goto err;
- }
-
- rc = ide_host_register(host, &d, hws);
- if (rc)
- goto err_free;
+ rc = ide_host_add(&sgiioc4_port_info, hws, NULL);
+ if (!rc)
+ return 0;
- return 0;
-err_free:
- ide_host_free(host);
-err:
release_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE);
+req_mem_rgn_err:
iounmap(virt_base);
return rc;
}
diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c
index eb4faf92c57..c3107df7773 100644
--- a/drivers/ide/siimage.c
+++ b/drivers/ide/siimage.c
@@ -784,7 +784,7 @@ static int __devinit siimage_init_one(struct pci_dev *dev,
printk(KERN_WARNING DRV_NAME " %s: MMIO ports not "
"available\n", pci_name(dev));
} else {
- ioaddr = ioremap(bar5, barsize);
+ ioaddr = pci_ioremap_bar(dev, 5);
if (ioaddr == NULL)
release_mem_region(bar5, barsize);
}
diff --git a/drivers/ide/tx4938ide.c b/drivers/ide/tx4938ide.c
new file mode 100644
index 00000000000..fa660f931a1
--- /dev/null
+++ b/drivers/ide/tx4938ide.c
@@ -0,0 +1,310 @@
+/*
+ * TX4938 internal IDE driver
+ * Based on tx4939ide.c.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * (C) Copyright TOSHIBA CORPORATION 2005-2007
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <asm/txx9/tx4938.h>
+
+static void tx4938ide_tune_ebusc(unsigned int ebus_ch,
+ unsigned int gbus_clock,
+ u8 pio)
+{
+ struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
+ u64 cr = __raw_readq(&tx4938_ebuscptr->cr[ebus_ch]);
+ unsigned int sp = (cr >> 4) & 3;
+ unsigned int clock = gbus_clock / (4 - sp);
+ unsigned int cycle = 1000000000 / clock;
+ unsigned int wt, shwt;
+
+ /* Minimum DIOx- active time */
+ wt = DIV_ROUND_UP(t->act8b, cycle) - 2;
+ /* IORDY setup time: 35ns */
+ wt = max(wt, DIV_ROUND_UP(35, cycle));
+ /* actual wait-cycle is max(wt & ~1, 1) */
+ if (wt > 2 && (wt & 1))
+ wt++;
+ wt &= ~1;
+ /* Address-valid to DIOR/DIOW setup */
+ shwt = DIV_ROUND_UP(t->setup, cycle);
+
+ pr_debug("tx4938ide: ebus %d, bus cycle %dns, WT %d, SHWT %d\n",
+ ebus_ch, cycle, wt, shwt);
+
+ __raw_writeq((cr & ~(0x3f007ull)) | (wt << 12) | shwt,
+ &tx4938_ebuscptr->cr[ebus_ch]);
+}
+
+static void tx4938ide_set_pio_mode(ide_drive_t *drive, const u8 pio)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct tx4938ide_platform_info *pdata = hwif->dev->platform_data;
+ u8 safe = pio;
+ ide_drive_t *pair;
+
+ pair = ide_get_pair_dev(drive);
+ if (pair)
+ safe = min(safe, ide_get_best_pio_mode(pair, 255, 5));
+ tx4938ide_tune_ebusc(pdata->ebus_ch, pdata->gbus_clock, safe);
+}
+
+#ifdef __BIG_ENDIAN
+
+/* custom iops (independent from SWAP_IO_SPACE) */
+static u8 tx4938ide_inb(unsigned long port)
+{
+ return __raw_readb((void __iomem *)port);
+}
+
+static void tx4938ide_outb(u8 value, unsigned long port)
+{
+ __raw_writeb(value, (void __iomem *)port);
+}
+
+static void tx4938ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ struct ide_taskfile *tf = &task->tf;
+ u8 HIHI = task->tf_flags & IDE_TFLAG_LBA48 ? 0xE0 : 0xEF;
+
+ if (task->tf_flags & IDE_TFLAG_FLAGGED)
+ HIHI = 0xFF;
+
+ if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
+ u16 data = (tf->hob_data << 8) | tf->data;
+
+ /* no endian swap */
+ __raw_writew(data, (void __iomem *)io_ports->data_addr);
+ }
+
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+ tx4938ide_outb(tf->hob_feature, io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+ tx4938ide_outb(tf->hob_nsect, io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+ tx4938ide_outb(tf->hob_lbal, io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+ tx4938ide_outb(tf->hob_lbam, io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+ tx4938ide_outb(tf->hob_lbah, io_ports->lbah_addr);
+
+ if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+ tx4938ide_outb(tf->feature, io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+ tx4938ide_outb(tf->nsect, io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+ tx4938ide_outb(tf->lbal, io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+ tx4938ide_outb(tf->lbam, io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+ tx4938ide_outb(tf->lbah, io_ports->lbah_addr);
+
+ if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
+ tx4938ide_outb((tf->device & HIHI) | drive->select,
+ io_ports->device_addr);
+}
+
+static void tx4938ide_tf_read(ide_drive_t *drive, ide_task_t *task)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ struct ide_taskfile *tf = &task->tf;
+
+ if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+ u16 data;
+
+ /* no endian swap */
+ data = __raw_readw((void __iomem *)io_ports->data_addr);
+ tf->data = data & 0xff;
+ tf->hob_data = (data >> 8) & 0xff;
+ }
+
+ /* be sure we're looking at the low order bits */
+ tx4938ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
+
+ if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+ tf->feature = tx4938ide_inb(io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+ tf->nsect = tx4938ide_inb(io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+ tf->lbal = tx4938ide_inb(io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+ tf->lbam = tx4938ide_inb(io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+ tf->lbah = tx4938ide_inb(io_ports->lbah_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+ tf->device = tx4938ide_inb(io_ports->device_addr);
+
+ if (task->tf_flags & IDE_TFLAG_LBA48) {
+ tx4938ide_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
+
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+ tf->hob_feature =
+ tx4938ide_inb(io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+ tf->hob_nsect = tx4938ide_inb(io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+ tf->hob_lbal = tx4938ide_inb(io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+ tf->hob_lbam = tx4938ide_inb(io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+ tf->hob_lbah = tx4938ide_inb(io_ports->lbah_addr);
+ }
+}
+
+static void tx4938ide_input_data_swap(ide_drive_t *drive, struct request *rq,
+ void *buf, unsigned int len)
+{
+ unsigned long port = drive->hwif->io_ports.data_addr;
+ unsigned short *ptr = buf;
+ unsigned int count = (len + 1) / 2;
+
+ while (count--)
+ *ptr++ = cpu_to_le16(__raw_readw((void __iomem *)port));
+ __ide_flush_dcache_range((unsigned long)buf, count * 2);
+}
+
+static void tx4938ide_output_data_swap(ide_drive_t *drive, struct request *rq,
+ void *buf, unsigned int len)
+{
+ unsigned long port = drive->hwif->io_ports.data_addr;
+ unsigned short *ptr = buf;
+ unsigned int count = (len + 1) / 2;
+
+ while (count--) {
+ __raw_writew(le16_to_cpu(*ptr), (void __iomem *)port);
+ ptr++;
+ }
+ __ide_flush_dcache_range((unsigned long)buf, count * 2);
+}
+
+static const struct ide_tp_ops tx4938ide_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = ide_read_sff_dma_status,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = tx4938ide_tf_load,
+ .tf_read = tx4938ide_tf_read,
+
+ .input_data = tx4938ide_input_data_swap,
+ .output_data = tx4938ide_output_data_swap,
+};
+
+#endif /* __BIG_ENDIAN */
+
+static const struct ide_port_ops tx4938ide_port_ops = {
+ .set_pio_mode = tx4938ide_set_pio_mode,
+};
+
+static const struct ide_port_info tx4938ide_port_info __initdata = {
+ .port_ops = &tx4938ide_port_ops,
+#ifdef __BIG_ENDIAN
+ .tp_ops = &tx4938ide_tp_ops,
+#endif
+ .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
+ .pio_mask = ATA_PIO5,
+};
+
+static int __init tx4938ide_probe(struct platform_device *pdev)
+{
+ hw_regs_t hw;
+ hw_regs_t *hws[] = { &hw, NULL, NULL, NULL };
+ struct ide_host *host;
+ struct resource *res;
+ struct tx4938ide_platform_info *pdata = pdev->dev.platform_data;
+ int irq, ret, i;
+ unsigned long mapbase;
+ struct ide_port_info d = tx4938ide_port_info;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return -ENODEV;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ if (!devm_request_mem_region(&pdev->dev, res->start,
+ res->end - res->start + 1, "tx4938ide"))
+ return -EBUSY;
+ mapbase = (unsigned long)devm_ioremap(&pdev->dev, res->start,
+ res->end - res->start + 1);
+ if (!mapbase)
+ return -EBUSY;
+
+ memset(&hw, 0, sizeof(hw));
+ if (pdata->ioport_shift) {
+ unsigned long port = mapbase;
+
+ hw.io_ports_array[0] = port;
+#ifdef __BIG_ENDIAN
+ port++;
+#endif
+ for (i = 1; i <= 7; i++)
+ hw.io_ports_array[i] =
+ port + (i << pdata->ioport_shift);
+ hw.io_ports.ctl_addr =
+ port + 0x10000 + (6 << pdata->ioport_shift);
+ } else
+ ide_std_init_ports(&hw, mapbase, mapbase + 0x10006);
+ hw.irq = irq;
+ hw.dev = &pdev->dev;
+
+ pr_info("TX4938 IDE interface (base %#lx, irq %d)\n", mapbase, hw.irq);
+ if (pdata->gbus_clock)
+ tx4938ide_tune_ebusc(pdata->ebus_ch, pdata->gbus_clock, 0);
+ else
+ d.port_ops = NULL;
+ ret = ide_host_add(&d, hws, &host);
+ if (ret)
+ return ret;
+ platform_set_drvdata(pdev, host);
+ return 0;
+}
+
+static int __exit tx4938ide_remove(struct platform_device *pdev)
+{
+ struct ide_host *host = platform_get_drvdata(pdev);
+
+ ide_host_remove(host);
+ return 0;
+}
+
+static struct platform_driver tx4938ide_driver = {
+ .driver = {
+ .name = "tx4938ide",
+ .owner = THIS_MODULE,
+ },
+ .remove = __exit_p(tx4938ide_remove),
+};
+
+static int __init tx4938ide_init(void)
+{
+ return platform_driver_probe(&tx4938ide_driver, tx4938ide_probe);
+}
+
+static void __exit tx4938ide_exit(void)
+{
+ platform_driver_unregister(&tx4938ide_driver);
+}
+
+module_init(tx4938ide_init);
+module_exit(tx4938ide_exit);
+
+MODULE_DESCRIPTION("TX4938 internal IDE driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:tx4938ide");
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
new file mode 100644
index 00000000000..bafb7d1a22e
--- /dev/null
+++ b/drivers/ide/tx4939ide.c
@@ -0,0 +1,754 @@
+/*
+ * TX4939 internal IDE driver
+ * Based on RBTX49xx patch from CELF patch archive.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * (C) Copyright TOSHIBA CORPORATION 2005-2007
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/scatterlist.h>
+
+#define MODNAME "tx4939ide"
+
+/* ATA Shadow Registers (8-bit except for Data which is 16-bit) */
+#define TX4939IDE_Data 0x000
+#define TX4939IDE_Error_Feature 0x001
+#define TX4939IDE_Sec 0x002
+#define TX4939IDE_LBA0 0x003
+#define TX4939IDE_LBA1 0x004
+#define TX4939IDE_LBA2 0x005
+#define TX4939IDE_DevHead 0x006
+#define TX4939IDE_Stat_Cmd 0x007
+#define TX4939IDE_AltStat_DevCtl 0x402
+/* H/W DMA Registers */
+#define TX4939IDE_DMA_Cmd 0x800 /* 8-bit */
+#define TX4939IDE_DMA_Stat 0x802 /* 8-bit */
+#define TX4939IDE_PRD_Ptr 0x804 /* 32-bit */
+/* ATA100 CORE Registers (16-bit) */
+#define TX4939IDE_Sys_Ctl 0xc00
+#define TX4939IDE_Xfer_Cnt_1 0xc08
+#define TX4939IDE_Xfer_Cnt_2 0xc0a
+#define TX4939IDE_Sec_Cnt 0xc10
+#define TX4939IDE_Start_Lo_Addr 0xc18
+#define TX4939IDE_Start_Up_Addr 0xc20
+#define TX4939IDE_Add_Ctl 0xc28
+#define TX4939IDE_Lo_Burst_Cnt 0xc30
+#define TX4939IDE_Up_Burst_Cnt 0xc38
+#define TX4939IDE_PIO_Addr 0xc88
+#define TX4939IDE_H_Rst_Tim 0xc90
+#define TX4939IDE_Int_Ctl 0xc98
+#define TX4939IDE_Pkt_Cmd 0xcb8
+#define TX4939IDE_Bxfer_Cnt_Hi 0xcc0
+#define TX4939IDE_Bxfer_Cnt_Lo 0xcc8
+#define TX4939IDE_Dev_TErr 0xcd0
+#define TX4939IDE_Pkt_Xfer_Ctl 0xcd8
+#define TX4939IDE_Start_TAddr 0xce0
+
+/* bits for Int_Ctl */
+#define TX4939IDE_INT_ADDRERR 0x80
+#define TX4939IDE_INT_REACHMUL 0x40
+#define TX4939IDE_INT_DEVTIMING 0x20
+#define TX4939IDE_INT_UDMATERM 0x10
+#define TX4939IDE_INT_TIMER 0x08
+#define TX4939IDE_INT_BUSERR 0x04
+#define TX4939IDE_INT_XFEREND 0x02
+#define TX4939IDE_INT_HOST 0x01
+
+#define TX4939IDE_IGNORE_INTS \
+ (TX4939IDE_INT_ADDRERR | TX4939IDE_INT_REACHMUL | \
+ TX4939IDE_INT_DEVTIMING | TX4939IDE_INT_UDMATERM | \
+ TX4939IDE_INT_TIMER | TX4939IDE_INT_XFEREND)
+
+#ifdef __BIG_ENDIAN
+#define tx4939ide_swizzlel(a) ((a) ^ 4)
+#define tx4939ide_swizzlew(a) ((a) ^ 6)
+#define tx4939ide_swizzleb(a) ((a) ^ 7)
+#else
+#define tx4939ide_swizzlel(a) (a)
+#define tx4939ide_swizzlew(a) (a)
+#define tx4939ide_swizzleb(a) (a)
+#endif
+
+static u16 tx4939ide_readw(void __iomem *base, u32 reg)
+{
+ return __raw_readw(base + tx4939ide_swizzlew(reg));
+}
+static u8 tx4939ide_readb(void __iomem *base, u32 reg)
+{
+ return __raw_readb(base + tx4939ide_swizzleb(reg));
+}
+static void tx4939ide_writel(u32 val, void __iomem *base, u32 reg)
+{
+ __raw_writel(val, base + tx4939ide_swizzlel(reg));
+}
+static void tx4939ide_writew(u16 val, void __iomem *base, u32 reg)
+{
+ __raw_writew(val, base + tx4939ide_swizzlew(reg));
+}
+static void tx4939ide_writeb(u8 val, void __iomem *base, u32 reg)
+{
+ __raw_writeb(val, base + tx4939ide_swizzleb(reg));
+}
+
+#define TX4939IDE_BASE(hwif) ((void __iomem *)(hwif)->extra_base)
+
+static void tx4939ide_set_pio_mode(ide_drive_t *drive, const u8 pio)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ int is_slave = drive->dn;
+ u32 mask, val;
+ u8 safe = pio;
+ ide_drive_t *pair;
+
+ pair = ide_get_pair_dev(drive);
+ if (pair)
+ safe = min(safe, ide_get_best_pio_mode(pair, 255, 4));
+ /*
+ * Update Command Transfer Mode for master/slave and Data
+ * Transfer Mode for this drive.
+ */
+ mask = is_slave ? 0x07f00000 : 0x000007f0;
+ val = ((safe << 8) | (pio << 4)) << (is_slave ? 16 : 0);
+ hwif->select_data = (hwif->select_data & ~mask) | val;
+ /* tx4939ide_tf_load_fixup() will set the Sys_Ctl register */
+}
+
+static void tx4939ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ u32 mask, val;
+
+ /* Update Data Transfer Mode for this drive. */
+ if (mode >= XFER_UDMA_0)
+ val = mode - XFER_UDMA_0 + 8;
+ else
+ val = mode - XFER_MW_DMA_0 + 5;
+ if (drive->dn) {
+ mask = 0x00f00000;
+ val <<= 20;
+ } else {
+ mask = 0x000000f0;
+ val <<= 4;
+ }
+ hwif->select_data = (hwif->select_data & ~mask) | val;
+ /* tx4939ide_tf_load_fixup() will set the Sys_Ctl register */
+}
+
+static u16 tx4939ide_check_error_ints(ide_hwif_t *hwif)
+{
+ void __iomem *base = TX4939IDE_BASE(hwif);
+ u16 ctl = tx4939ide_readw(base, TX4939IDE_Int_Ctl);
+
+ if (ctl & TX4939IDE_INT_BUSERR) {
+ /* reset FIFO */
+ u16 sysctl = tx4939ide_readw(base, TX4939IDE_Sys_Ctl);
+
+ tx4939ide_writew(sysctl | 0x4000, base, TX4939IDE_Sys_Ctl);
+ mmiowb();
+ /* wait 12GBUSCLK (typ. 60ns @ GBUS200MHz, max 270ns) */
+ ndelay(270);
+ tx4939ide_writew(sysctl, base, TX4939IDE_Sys_Ctl);
+ }
+ if (ctl & (TX4939IDE_INT_ADDRERR |
+ TX4939IDE_INT_DEVTIMING | TX4939IDE_INT_BUSERR))
+ pr_err("%s: Error interrupt %#x (%s%s%s )\n",
+ hwif->name, ctl,
+ ctl & TX4939IDE_INT_ADDRERR ? " Address-Error" : "",
+ ctl & TX4939IDE_INT_DEVTIMING ? " DEV-Timing" : "",
+ ctl & TX4939IDE_INT_BUSERR ? " Bus-Error" : "");
+ return ctl;
+}
+
+static void tx4939ide_clear_irq(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif;
+ void __iomem *base;
+ u16 ctl;
+
+ /*
+ * tx4939ide_dma_test_irq() and tx4939ide_dma_end() do all job
+ * for DMA case.
+ */
+ if (drive->waiting_for_dma)
+ return;
+ hwif = drive->hwif;
+ base = TX4939IDE_BASE(hwif);
+ ctl = tx4939ide_check_error_ints(hwif);
+ tx4939ide_writew(ctl, base, TX4939IDE_Int_Ctl);
+}
+
+static u8 tx4939ide_cable_detect(ide_hwif_t *hwif)
+{
+ void __iomem *base = TX4939IDE_BASE(hwif);
+
+ return tx4939ide_readw(base, TX4939IDE_Sys_Ctl) & 0x2000 ?
+ ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
+#ifdef __BIG_ENDIAN
+static void tx4939ide_dma_host_set(ide_drive_t *drive, int on)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ u8 unit = drive->dn;
+ void __iomem *base = TX4939IDE_BASE(hwif);
+ u8 dma_stat = tx4939ide_readb(base, TX4939IDE_DMA_Stat);
+
+ if (on)
+ dma_stat |= (1 << (5 + unit));
+ else
+ dma_stat &= ~(1 << (5 + unit));
+
+ tx4939ide_writeb(dma_stat, base, TX4939IDE_DMA_Stat);
+}
+#else
+#define tx4939ide_dma_host_set ide_dma_host_set
+#endif
+
+static u8 tx4939ide_clear_dma_status(void __iomem *base)
+{
+ u8 dma_stat;
+
+ /* read DMA status for INTR & ERROR flags */
+ dma_stat = tx4939ide_readb(base, TX4939IDE_DMA_Stat);
+ /* clear INTR & ERROR flags */
+ tx4939ide_writeb(dma_stat | ATA_DMA_INTR | ATA_DMA_ERR, base,
+ TX4939IDE_DMA_Stat);
+ /* recover intmask cleared by writing to bit2 of DMA_Stat */
+ tx4939ide_writew(TX4939IDE_IGNORE_INTS << 8, base, TX4939IDE_Int_Ctl);
+ return dma_stat;
+}
+
+#ifdef __BIG_ENDIAN
+/* custom ide_build_dmatable to handle swapped layout */
+static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ u32 *table = (u32 *)hwif->dmatable_cpu;
+ unsigned int count = 0;
+ int i;
+ struct scatterlist *sg;
+
+ hwif->sg_nents = ide_build_sglist(drive, rq);
+ if (hwif->sg_nents == 0)
+ return 0;
+
+ for_each_sg(hwif->sg_table, sg, hwif->sg_nents, i) {
+ u32 cur_addr, cur_len, bcount;
+
+ cur_addr = sg_dma_address(sg);
+ cur_len = sg_dma_len(sg);
+
+ /*
+ * Fill in the DMA table, without crossing any 64kB boundaries.
+ */
+
+ while (cur_len) {
+ if (count++ >= PRD_ENTRIES)
+ goto use_pio_instead;
+
+ bcount = 0x10000 - (cur_addr & 0xffff);
+ if (bcount > cur_len)
+ bcount = cur_len;
+ *table++ = bcount & 0xffff;
+ *table++ = cur_addr;
+ cur_addr += bcount;
+ cur_len -= bcount;
+ }
+ }
+
+ if (count) {
+ *(table - 2) |= 0x80000000;
+ return count;
+ }
+
+use_pio_instead:
+ printk(KERN_ERR "%s: %s\n", drive->name,
+ count ? "DMA table too small" : "empty DMA table?");
+
+ ide_destroy_dmatable(drive);
+
+ return 0; /* revert to PIO for this request */
+}
+#else
+#define tx4939ide_build_dmatable ide_build_dmatable
+#endif
+
+static int tx4939ide_dma_setup(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ void __iomem *base = TX4939IDE_BASE(hwif);
+ struct request *rq = hwif->hwgroup->rq;
+ u8 reading;
+ int nent;
+
+ if (rq_data_dir(rq))
+ reading = 0;
+ else
+ reading = ATA_DMA_WR;
+
+ /* fall back to PIO! */
+ nent = tx4939ide_build_dmatable(drive, rq);
+ if (!nent) {
+ ide_map_sg(drive, rq);
+ return 1;
+ }
+
+ /* PRD table */
+ tx4939ide_writel(hwif->dmatable_dma, base, TX4939IDE_PRD_Ptr);
+
+ /* specify r/w */
+ tx4939ide_writeb(reading, base, TX4939IDE_DMA_Cmd);
+
+ /* clear INTR & ERROR flags */
+ tx4939ide_clear_dma_status(base);
+
+ drive->waiting_for_dma = 1;
+
+ tx4939ide_writew(SECTOR_SIZE / 2, base, drive->dn ?
+ TX4939IDE_Xfer_Cnt_2 : TX4939IDE_Xfer_Cnt_1);
+ tx4939ide_writew(rq->nr_sectors, base, TX4939IDE_Sec_Cnt);
+ return 0;
+}
+
+static int tx4939ide_dma_end(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ u8 dma_stat, dma_cmd;
+ void __iomem *base = TX4939IDE_BASE(hwif);
+ u16 ctl = tx4939ide_readw(base, TX4939IDE_Int_Ctl);
+
+ drive->waiting_for_dma = 0;
+
+ /* get DMA command mode */
+ dma_cmd = tx4939ide_readb(base, TX4939IDE_DMA_Cmd);
+ /* stop DMA */
+ tx4939ide_writeb(dma_cmd & ~ATA_DMA_START, base, TX4939IDE_DMA_Cmd);
+
+ /* read and clear the INTR & ERROR bits */
+ dma_stat = tx4939ide_clear_dma_status(base);
+
+ /* purge DMA mappings */
+ ide_destroy_dmatable(drive);
+ /* verify good DMA status */
+ wmb();
+
+ if ((dma_stat & (ATA_DMA_INTR | ATA_DMA_ERR | ATA_DMA_ACTIVE)) == 0 &&
+ (ctl & (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST)) ==
+ (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST))
+ /* INT_IDE lost... bug? */
+ return 0;
+ return ((dma_stat & (ATA_DMA_INTR | ATA_DMA_ERR | ATA_DMA_ACTIVE)) !=
+ ATA_DMA_INTR) ? 0x10 | dma_stat : 0;
+}
+
+/* returns 1 if DMA IRQ issued, 0 otherwise */
+static int tx4939ide_dma_test_irq(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ void __iomem *base = TX4939IDE_BASE(hwif);
+ u16 ctl, ide_int;
+ u8 dma_stat, stat;
+ int found = 0;
+
+ ctl = tx4939ide_check_error_ints(hwif);
+ ide_int = ctl & (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST);
+ switch (ide_int) {
+ case TX4939IDE_INT_HOST:
+ /* On error, XFEREND might not be asserted. */
+ stat = tx4939ide_readb(base, TX4939IDE_AltStat_DevCtl);
+ if ((stat & (ATA_BUSY | ATA_DRQ | ATA_ERR)) == ATA_ERR)
+ found = 1;
+ else
+ /* Wait for XFEREND (Mask HOST and unmask XFEREND) */
+ ctl &= ~TX4939IDE_INT_XFEREND << 8;
+ ctl |= ide_int << 8;
+ break;
+ case TX4939IDE_INT_HOST | TX4939IDE_INT_XFEREND:
+ dma_stat = tx4939ide_readb(base, TX4939IDE_DMA_Stat);
+ if (!(dma_stat & ATA_DMA_INTR))
+ pr_warning("%s: weird interrupt status. "
+ "DMA_Stat %#02x int_ctl %#04x\n",
+ hwif->name, dma_stat, ctl);
+ found = 1;
+ break;
+ }
+ /*
+ * Do not clear XFEREND, HOST now. They will be cleared by
+ * clearing bit2 of DMA_Stat.
+ */
+ ctl &= ~ide_int;
+ tx4939ide_writew(ctl, base, TX4939IDE_Int_Ctl);
+ return found;
+}
+
+static void tx4939ide_init_hwif(ide_hwif_t *hwif)
+{
+ void __iomem *base = TX4939IDE_BASE(hwif);
+
+ /* Soft Reset */
+ tx4939ide_writew(0x8000, base, TX4939IDE_Sys_Ctl);
+ mmiowb();
+ /* at least 20 GBUSCLK (typ. 100ns @ GBUS200MHz, max 450ns) */
+ ndelay(450);
+ tx4939ide_writew(0x0000, base, TX4939IDE_Sys_Ctl);
+ /* mask some interrupts and clear all interrupts */
+ tx4939ide_writew((TX4939IDE_IGNORE_INTS << 8) | 0xff, base,
+ TX4939IDE_Int_Ctl);
+
+ tx4939ide_writew(0x0008, base, TX4939IDE_Lo_Burst_Cnt);
+ tx4939ide_writew(0, base, TX4939IDE_Up_Burst_Cnt);
+}
+
+static int tx4939ide_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
+{
+ hwif->dma_base =
+ hwif->extra_base + tx4939ide_swizzleb(TX4939IDE_DMA_Cmd);
+ /*
+ * Note that we cannot use ATA_DMA_TABLE_OFS, ATA_DMA_STATUS
+ * for big endian.
+ */
+ return ide_allocate_dma_engine(hwif);
+}
+
+static void tx4939ide_tf_load_fixup(ide_drive_t *drive, ide_task_t *task)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ void __iomem *base = TX4939IDE_BASE(hwif);
+ u16 sysctl = hwif->select_data >> (drive->dn ? 16 : 0);
+
+ /*
+ * Fix ATA100 CORE System Control Register. (The write to the
+ * Device/Head register may write wrong data to the System
+ * Control Register)
+ * While Sys_Ctl is written here, selectproc is not needed.
+ */
+ tx4939ide_writew(sysctl, base, TX4939IDE_Sys_Ctl);
+}
+
+#ifdef __BIG_ENDIAN
+
+static u8 tx4939ide_read_sff_dma_status(ide_hwif_t *hwif)
+{
+ void __iomem *base = TX4939IDE_BASE(hwif);
+
+ return tx4939ide_readb(base, TX4939IDE_DMA_Stat);
+}
+
+/* custom iops (independent from SWAP_IO_SPACE) */
+static u8 tx4939ide_inb(unsigned long port)
+{
+ return __raw_readb((void __iomem *)port);
+}
+
+static void tx4939ide_outb(u8 value, unsigned long port)
+{
+ __raw_writeb(value, (void __iomem *)port);
+}
+
+static void tx4939ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ struct ide_taskfile *tf = &task->tf;
+ u8 HIHI = task->tf_flags & IDE_TFLAG_LBA48 ? 0xE0 : 0xEF;
+
+ if (task->tf_flags & IDE_TFLAG_FLAGGED)
+ HIHI = 0xFF;
+
+ if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
+ u16 data = (tf->hob_data << 8) | tf->data;
+
+ /* no endian swap */
+ __raw_writew(data, (void __iomem *)io_ports->data_addr);
+ }
+
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+ tx4939ide_outb(tf->hob_feature, io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+ tx4939ide_outb(tf->hob_nsect, io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+ tx4939ide_outb(tf->hob_lbal, io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+ tx4939ide_outb(tf->hob_lbam, io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+ tx4939ide_outb(tf->hob_lbah, io_ports->lbah_addr);
+
+ if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+ tx4939ide_outb(tf->feature, io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+ tx4939ide_outb(tf->nsect, io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+ tx4939ide_outb(tf->lbal, io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+ tx4939ide_outb(tf->lbam, io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+ tx4939ide_outb(tf->lbah, io_ports->lbah_addr);
+
+ if (task->tf_flags & IDE_TFLAG_OUT_DEVICE) {
+ tx4939ide_outb((tf->device & HIHI) | drive->select,
+ io_ports->device_addr);
+ tx4939ide_tf_load_fixup(drive, task);
+ }
+}
+
+static void tx4939ide_tf_read(ide_drive_t *drive, ide_task_t *task)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ struct ide_taskfile *tf = &task->tf;
+
+ if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+ u16 data;
+
+ /* no endian swap */
+ data = __raw_readw((void __iomem *)io_ports->data_addr);
+ tf->data = data & 0xff;
+ tf->hob_data = (data >> 8) & 0xff;
+ }
+
+ /* be sure we're looking at the low order bits */
+ tx4939ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
+
+ if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+ tf->feature = tx4939ide_inb(io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+ tf->nsect = tx4939ide_inb(io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+ tf->lbal = tx4939ide_inb(io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+ tf->lbam = tx4939ide_inb(io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+ tf->lbah = tx4939ide_inb(io_ports->lbah_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+ tf->device = tx4939ide_inb(io_ports->device_addr);
+
+ if (task->tf_flags & IDE_TFLAG_LBA48) {
+ tx4939ide_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
+
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+ tf->hob_feature =
+ tx4939ide_inb(io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+ tf->hob_nsect = tx4939ide_inb(io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+ tf->hob_lbal = tx4939ide_inb(io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+ tf->hob_lbam = tx4939ide_inb(io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+ tf->hob_lbah = tx4939ide_inb(io_ports->lbah_addr);
+ }
+}
+
+static void tx4939ide_input_data_swap(ide_drive_t *drive, struct request *rq,
+ void *buf, unsigned int len)
+{
+ unsigned long port = drive->hwif->io_ports.data_addr;
+ unsigned short *ptr = buf;
+ unsigned int count = (len + 1) / 2;
+
+ while (count--)
+ *ptr++ = cpu_to_le16(__raw_readw((void __iomem *)port));
+ __ide_flush_dcache_range((unsigned long)buf, count * 2);
+}
+
+static void tx4939ide_output_data_swap(ide_drive_t *drive, struct request *rq,
+ void *buf, unsigned int len)
+{
+ unsigned long port = drive->hwif->io_ports.data_addr;
+ unsigned short *ptr = buf;
+ unsigned int count = (len + 1) / 2;
+
+ while (count--) {
+ __raw_writew(le16_to_cpu(*ptr), (void __iomem *)port);
+ ptr++;
+ }
+ __ide_flush_dcache_range((unsigned long)buf, count * 2);
+}
+
+static const struct ide_tp_ops tx4939ide_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = tx4939ide_read_sff_dma_status,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = tx4939ide_tf_load,
+ .tf_read = tx4939ide_tf_read,
+
+ .input_data = tx4939ide_input_data_swap,
+ .output_data = tx4939ide_output_data_swap,
+};
+
+#else /* __LITTLE_ENDIAN */
+
+static void tx4939ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+{
+ ide_tf_load(drive, task);
+ if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
+ tx4939ide_tf_load_fixup(drive, task);
+}
+
+static const struct ide_tp_ops tx4939ide_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = ide_read_sff_dma_status,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = tx4939ide_tf_load,
+ .tf_read = ide_tf_read,
+
+ .input_data = ide_input_data,
+ .output_data = ide_output_data,
+};
+
+#endif /* __LITTLE_ENDIAN */
+
+static const struct ide_port_ops tx4939ide_port_ops = {
+ .set_pio_mode = tx4939ide_set_pio_mode,
+ .set_dma_mode = tx4939ide_set_dma_mode,
+ .clear_irq = tx4939ide_clear_irq,
+ .cable_detect = tx4939ide_cable_detect,
+};
+
+static const struct ide_dma_ops tx4939ide_dma_ops = {
+ .dma_host_set = tx4939ide_dma_host_set,
+ .dma_setup = tx4939ide_dma_setup,
+ .dma_exec_cmd = ide_dma_exec_cmd,
+ .dma_start = ide_dma_start,
+ .dma_end = tx4939ide_dma_end,
+ .dma_test_irq = tx4939ide_dma_test_irq,
+ .dma_lost_irq = ide_dma_lost_irq,
+ .dma_timeout = ide_dma_timeout,
+};
+
+static const struct ide_port_info tx4939ide_port_info __initdata = {
+ .init_hwif = tx4939ide_init_hwif,
+ .init_dma = tx4939ide_init_dma,
+ .port_ops = &tx4939ide_port_ops,
+ .dma_ops = &tx4939ide_dma_ops,
+ .tp_ops = &tx4939ide_tp_ops,
+ .host_flags = IDE_HFLAG_MMIO,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA5,
+};
+
+static int __init tx4939ide_probe(struct platform_device *pdev)
+{
+ hw_regs_t hw;
+ hw_regs_t *hws[] = { &hw, NULL, NULL, NULL };
+ struct ide_host *host;
+ struct resource *res;
+ int irq, ret;
+ unsigned long mapbase;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return -ENODEV;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ if (!devm_request_mem_region(&pdev->dev, res->start,
+ res->end - res->start + 1, "tx4938ide"))
+ return -EBUSY;
+ mapbase = (unsigned long)devm_ioremap(&pdev->dev, res->start,
+ res->end - res->start + 1);
+ if (!mapbase)
+ return -EBUSY;
+ memset(&hw, 0, sizeof(hw));
+ hw.io_ports.data_addr =
+ mapbase + tx4939ide_swizzlew(TX4939IDE_Data);
+ hw.io_ports.error_addr =
+ mapbase + tx4939ide_swizzleb(TX4939IDE_Error_Feature);
+ hw.io_ports.nsect_addr =
+ mapbase + tx4939ide_swizzleb(TX4939IDE_Sec);
+ hw.io_ports.lbal_addr =
+ mapbase + tx4939ide_swizzleb(TX4939IDE_LBA0);
+ hw.io_ports.lbam_addr =
+ mapbase + tx4939ide_swizzleb(TX4939IDE_LBA1);
+ hw.io_ports.lbah_addr =
+ mapbase + tx4939ide_swizzleb(TX4939IDE_LBA2);
+ hw.io_ports.device_addr =
+ mapbase + tx4939ide_swizzleb(TX4939IDE_DevHead);
+ hw.io_ports.command_addr =
+ mapbase + tx4939ide_swizzleb(TX4939IDE_Stat_Cmd);
+ hw.io_ports.ctl_addr =
+ mapbase + tx4939ide_swizzleb(TX4939IDE_AltStat_DevCtl);
+ hw.irq = irq;
+ hw.dev = &pdev->dev;
+
+ pr_info("TX4939 IDE interface (base %#lx, irq %d)\n", mapbase, irq);
+ host = ide_host_alloc(&tx4939ide_port_info, hws);
+ if (!host)
+ return -ENOMEM;
+ /* use extra_base for base address of the all registers */
+ host->ports[0]->extra_base = mapbase;
+ ret = ide_host_register(host, &tx4939ide_port_info, hws);
+ if (ret) {
+ ide_host_free(host);
+ return ret;
+ }
+ platform_set_drvdata(pdev, host);
+ return 0;
+}
+
+static int __exit tx4939ide_remove(struct platform_device *pdev)
+{
+ struct ide_host *host = platform_get_drvdata(pdev);
+
+ ide_host_remove(host);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int tx4939ide_resume(struct platform_device *dev)
+{
+ struct ide_host *host = platform_get_drvdata(dev);
+ ide_hwif_t *hwif = host->ports[0];
+
+ tx4939ide_init_hwif(hwif);
+ return 0;
+}
+#else
+#define tx4939ide_resume NULL
+#endif
+
+static struct platform_driver tx4939ide_driver = {
+ .driver = {
+ .name = MODNAME,
+ .owner = THIS_MODULE,
+ },
+ .remove = __exit_p(tx4939ide_remove),
+ .resume = tx4939ide_resume,
+};
+
+static int __init tx4939ide_init(void)
+{
+ return platform_driver_probe(&tx4939ide_driver, tx4939ide_probe);
+}
+
+static void __exit tx4939ide_exit(void)
+{
+ platform_driver_unregister(&tx4939ide_driver);
+}
+
+module_init(tx4939ide_init);
+module_exit(tx4939ide_exit);
+
+MODULE_DESCRIPTION("TX4939 internal IDE driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:tx4939ide");