aboutsummaryrefslogtreecommitdiff
path: root/drivers/ide/arm
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ide/arm')
-rw-r--r--drivers/ide/arm/Makefile6
-rw-r--r--drivers/ide/arm/bast-ide.c71
-rw-r--r--drivers/ide/arm/icside.c870
-rw-r--r--drivers/ide/arm/ide_arm.c43
-rw-r--r--drivers/ide/arm/rapide.c125
5 files changed, 1115 insertions, 0 deletions
diff --git a/drivers/ide/arm/Makefile b/drivers/ide/arm/Makefile
new file mode 100644
index 00000000000..6a78f0755f2
--- /dev/null
+++ b/drivers/ide/arm/Makefile
@@ -0,0 +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 00000000000..9d474e5fd8d
--- /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/arm/icside.c b/drivers/ide/arm/icside.c
new file mode 100644
index 00000000000..308897e57e4
--- /dev/null
+++ b/drivers/ide/arm/icside.c
@@ -0,0 +1,870 @@
+/*
+ * linux/drivers/ide/arm/icside.c
+ *
+ * Copyright (c) 1996-2004 Russell King.
+ *
+ * Please note that this platform does not support 32-bit IDE IO.
+ */
+
+#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/blkdev.h>
+#include <linux/errno.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/dma-mapping.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/scatterlist.h>
+
+#include <asm/dma.h>
+#include <asm/ecard.h>
+#include <asm/io.h>
+
+#define ICS_IDENT_OFFSET 0x2280
+
+#define ICS_ARCIN_V5_INTRSTAT 0x0000
+#define ICS_ARCIN_V5_INTROFFSET 0x0004
+#define ICS_ARCIN_V5_IDEOFFSET 0x2800
+#define ICS_ARCIN_V5_IDEALTOFFSET 0x2b80
+#define ICS_ARCIN_V5_IDESTEPPING 6
+
+#define ICS_ARCIN_V6_IDEOFFSET_1 0x2000
+#define ICS_ARCIN_V6_INTROFFSET_1 0x2200
+#define ICS_ARCIN_V6_INTRSTAT_1 0x2290
+#define ICS_ARCIN_V6_IDEALTOFFSET_1 0x2380
+#define ICS_ARCIN_V6_IDEOFFSET_2 0x3000
+#define ICS_ARCIN_V6_INTROFFSET_2 0x3200
+#define ICS_ARCIN_V6_INTRSTAT_2 0x3290
+#define ICS_ARCIN_V6_IDEALTOFFSET_2 0x3380
+#define ICS_ARCIN_V6_IDESTEPPING 6
+
+struct cardinfo {
+ unsigned int dataoffset;
+ unsigned int ctrloffset;
+ unsigned int stepping;
+};
+
+static struct cardinfo icside_cardinfo_v5 = {
+ .dataoffset = ICS_ARCIN_V5_IDEOFFSET,
+ .ctrloffset = ICS_ARCIN_V5_IDEALTOFFSET,
+ .stepping = ICS_ARCIN_V5_IDESTEPPING,
+};
+
+static struct cardinfo icside_cardinfo_v6_1 = {
+ .dataoffset = ICS_ARCIN_V6_IDEOFFSET_1,
+ .ctrloffset = ICS_ARCIN_V6_IDEALTOFFSET_1,
+ .stepping = ICS_ARCIN_V6_IDESTEPPING,
+};
+
+static struct cardinfo icside_cardinfo_v6_2 = {
+ .dataoffset = ICS_ARCIN_V6_IDEOFFSET_2,
+ .ctrloffset = ICS_ARCIN_V6_IDEALTOFFSET_2,
+ .stepping = ICS_ARCIN_V6_IDESTEPPING,
+};
+
+struct icside_state {
+ unsigned int channel;
+ unsigned int enabled;
+ void __iomem *irq_port;
+ void __iomem *ioc_base;
+ unsigned int type;
+ /* parent device... until the IDE core gets one of its own */
+ struct device *dev;
+ ide_hwif_t *hwif[2];
+};
+
+#define ICS_TYPE_A3IN 0
+#define ICS_TYPE_A3USER 1
+#define ICS_TYPE_V6 3
+#define ICS_TYPE_V5 15
+#define ICS_TYPE_NOTYPE ((unsigned int)-1)
+
+/* ---------------- Version 5 PCB Support Functions --------------------- */
+/* Prototype: icside_irqenable_arcin_v5 (struct expansion_card *ec, int irqnr)
+ * Purpose : enable interrupts from card
+ */
+static void icside_irqenable_arcin_v5 (struct expansion_card *ec, int irqnr)
+{
+ struct icside_state *state = ec->irq_data;
+
+ writeb(0, state->irq_port + ICS_ARCIN_V5_INTROFFSET);
+}
+
+/* Prototype: icside_irqdisable_arcin_v5 (struct expansion_card *ec, int irqnr)
+ * Purpose : disable interrupts from card
+ */
+static void icside_irqdisable_arcin_v5 (struct expansion_card *ec, int irqnr)
+{
+ struct icside_state *state = ec->irq_data;
+
+ readb(state->irq_port + ICS_ARCIN_V5_INTROFFSET);
+}
+
+static const expansioncard_ops_t icside_ops_arcin_v5 = {
+ .irqenable = icside_irqenable_arcin_v5,
+ .irqdisable = icside_irqdisable_arcin_v5,
+};
+
+
+/* ---------------- Version 6 PCB Support Functions --------------------- */
+/* Prototype: icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr)
+ * Purpose : enable interrupts from card
+ */
+static void icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr)
+{
+ struct icside_state *state = ec->irq_data;
+ void __iomem *base = state->irq_port;
+
+ state->enabled = 1;
+
+ switch (state->channel) {
+ case 0:
+ writeb(0, base + ICS_ARCIN_V6_INTROFFSET_1);
+ readb(base + ICS_ARCIN_V6_INTROFFSET_2);
+ break;
+ case 1:
+ writeb(0, base + ICS_ARCIN_V6_INTROFFSET_2);
+ readb(base + ICS_ARCIN_V6_INTROFFSET_1);
+ break;
+ }
+}
+
+/* Prototype: icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr)
+ * Purpose : disable interrupts from card
+ */
+static void icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr)
+{
+ struct icside_state *state = ec->irq_data;
+
+ state->enabled = 0;
+
+ readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
+ readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
+}
+
+/* Prototype: icside_irqprobe(struct expansion_card *ec)
+ * Purpose : detect an active interrupt from card
+ */
+static int icside_irqpending_arcin_v6(struct expansion_card *ec)
+{
+ struct icside_state *state = ec->irq_data;
+
+ return readb(state->irq_port + ICS_ARCIN_V6_INTRSTAT_1) & 1 ||
+ readb(state->irq_port + ICS_ARCIN_V6_INTRSTAT_2) & 1;
+}
+
+static const expansioncard_ops_t icside_ops_arcin_v6 = {
+ .irqenable = icside_irqenable_arcin_v6,
+ .irqdisable = icside_irqdisable_arcin_v6,
+ .irqpending = icside_irqpending_arcin_v6,
+};
+
+/*
+ * Handle routing of interrupts. This is called before
+ * we write the command to the drive.
+ */
+static void icside_maskproc(ide_drive_t *drive, int mask)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct icside_state *state = hwif->hwif_data;
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ state->channel = hwif->channel;
+
+ if (state->enabled && !mask) {
+ switch (hwif->channel) {
+ case 0:
+ writeb(0, state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
+ readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
+ break;
+ case 1:
+ writeb(0, state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
+ readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
+ break;
+ }
+ } else {
+ readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
+ readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
+ }
+
+ local_irq_restore(flags);
+}
+
+#ifdef CONFIG_BLK_DEV_IDEDMA_ICS
+
+#ifndef CONFIG_IDEDMA_ICS_AUTO
+#warning CONFIG_IDEDMA_ICS_AUTO=n support is obsolete, and will be removed soon.
+#endif
+
+/*
+ * SG-DMA support.
+ *
+ * Similar to the BM-DMA, but we use the RiscPCs IOMD DMA controllers.
+ * There is only one DMA controller per card, which means that only
+ * one drive can be accessed at one time. NOTE! We do not enforce that
+ * here, but we rely on the main IDE driver spotting that both
+ * interfaces use the same IRQ, which should guarantee this.
+ */
+
+static void icside_build_sglist(ide_drive_t *drive, struct request *rq)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct icside_state *state = hwif->hwif_data;
+ struct scatterlist *sg = hwif->sg_table;
+
+ ide_map_sg(drive, rq);
+
+ if (rq_data_dir(rq) == READ)
+ hwif->sg_dma_direction = DMA_FROM_DEVICE;
+ else
+ hwif->sg_dma_direction = DMA_TO_DEVICE;
+
+ hwif->sg_nents = dma_map_sg(state->dev, sg, hwif->sg_nents,
+ hwif->sg_dma_direction);
+}
+
+/*
+ * Configure the IOMD to give the appropriate timings for the transfer
+ * mode being requested. We take the advice of the ATA standards, and
+ * calculate the cycle time based on the transfer mode, and the EIDE
+ * MW DMA specs that the drive provides in the IDENTIFY command.
+ *
+ * We have the following IOMD DMA modes to choose from:
+ *
+ * Type Active Recovery Cycle
+ * A 250 (250) 312 (550) 562 (800)
+ * B 187 250 437
+ * C 125 (125) 125 (375) 250 (500)
+ * D 62 125 187
+ *
+ * (figures in brackets are actual measured timings)
+ *
+ * However, we also need to take care of the read/write active and
+ * recovery timings:
+ *
+ * Read Write
+ * Mode Active -- Recovery -- Cycle IOMD type
+ * MW0 215 50 215 480 A
+ * MW1 80 50 50 150 C
+ * MW2 70 25 25 120 C
+ */
+static int icside_set_speed(ide_drive_t *drive, u8 xfer_mode)
+{
+ int on = 0, cycle_time = 0, use_dma_info = 0;
+
+ /*
+ * Limit the transfer speed to MW_DMA_2.
+ */
+ if (xfer_mode > XFER_MW_DMA_2)
+ xfer_mode = XFER_MW_DMA_2;
+
+ switch (xfer_mode) {
+ case XFER_MW_DMA_2:
+ cycle_time = 250;
+ use_dma_info = 1;
+ break;
+
+ case XFER_MW_DMA_1:
+ cycle_time = 250;
+ use_dma_info = 1;
+ break;
+
+ case XFER_MW_DMA_0:
+ cycle_time = 480;
+ break;
+
+ case XFER_SW_DMA_2:
+ case XFER_SW_DMA_1:
+ case XFER_SW_DMA_0:
+ cycle_time = 480;
+ break;
+ }
+
+ /*
+ * If we're going to be doing MW_DMA_1 or MW_DMA_2, we should
+ * take care to note the values in the ID...
+ */
+ if (use_dma_info && drive->id->eide_dma_time > cycle_time)
+ cycle_time = drive->id->eide_dma_time;
+
+ drive->drive_data = cycle_time;
+
+ if (cycle_time && ide_config_drive_speed(drive, xfer_mode) == 0)
+ on = 1;
+ else
+ drive->drive_data = 480;
+
+ printk("%s: %s selected (peak %dMB/s)\n", drive->name,
+ ide_xfer_verbose(xfer_mode), 2000 / drive->drive_data);
+
+ drive->current_speed = xfer_mode;
+
+ return on;
+}
+
+static int icside_dma_host_off(ide_drive_t *drive)
+{
+ return 0;
+}
+
+static int icside_dma_off_quietly(ide_drive_t *drive)
+{
+ drive->using_dma = 0;
+ return icside_dma_host_off(drive);
+}
+
+static int icside_dma_host_on(ide_drive_t *drive)
+{
+ return 0;
+}
+
+static int icside_dma_on(ide_drive_t *drive)
+{
+ drive->using_dma = 1;
+ return icside_dma_host_on(drive);
+}
+
+static int icside_dma_check(ide_drive_t *drive)
+{
+ struct hd_driveid *id = drive->id;
+ ide_hwif_t *hwif = HWIF(drive);
+ int xfer_mode = XFER_PIO_2;
+ int on;
+
+ if (!(id->capability & 1) || !hwif->autodma)
+ goto out;
+
+ /*
+ * Consult the list of known "bad" drives
+ */
+ if (__ide_dma_bad_drive(drive))
+ goto out;
+
+ /*
+ * Enable DMA on any drive that has multiword DMA
+ */
+ if (id->field_valid & 2) {
+ xfer_mode = ide_dma_speed(drive, 0);
+ goto out;
+ }
+
+ /*
+ * Consult the list of known "good" drives
+ */
+ if (__ide_dma_good_drive(drive)) {
+ if (id->eide_dma_time > 150)
+ goto out;
+ xfer_mode = XFER_MW_DMA_1;
+ }
+
+out:
+ on = icside_set_speed(drive, xfer_mode);
+
+ if (on)
+ return icside_dma_on(drive);
+ else
+ return icside_dma_off_quietly(drive);
+}
+
+static int icside_dma_end(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct icside_state *state = hwif->hwif_data;
+
+ drive->waiting_for_dma = 0;
+
+ disable_dma(hwif->hw.dma);
+
+ /* Teardown mappings after DMA has completed. */
+ dma_unmap_sg(state->dev, hwif->sg_table, hwif->sg_nents,
+ hwif->sg_dma_direction);
+
+ return get_dma_residue(hwif->hw.dma) != 0;
+}
+
+static void icside_dma_start(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+
+ /* We can not enable DMA on both channels simultaneously. */
+ BUG_ON(dma_channel_active(hwif->hw.dma));
+ enable_dma(hwif->hw.dma);
+}
+
+static int icside_dma_setup(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct request *rq = hwif->hwgroup->rq;
+ unsigned int dma_mode;
+
+ if (rq_data_dir(rq))
+ dma_mode = DMA_MODE_WRITE;
+ else
+ dma_mode = DMA_MODE_READ;
+
+ /*
+ * We can not enable DMA on both channels.
+ */
+ BUG_ON(dma_channel_active(hwif->hw.dma));
+
+ icside_build_sglist(drive, rq);
+
+ /*
+ * Ensure that we have the right interrupt routed.
+ */
+ icside_maskproc(drive, 0);
+
+ /*
+ * Route the DMA signals to the correct interface.
+ */
+ writeb(hwif->select_data, hwif->config_data);
+
+ /*
+ * Select the correct timing for this drive.
+ */
+ set_dma_speed(hwif->hw.dma, drive->drive_data);
+
+ /*
+ * Tell the DMA engine about the SG table and
+ * data direction.
+ */
+ set_dma_sg(hwif->hw.dma, hwif->sg_table, hwif->sg_nents);
+ set_dma_mode(hwif->hw.dma, dma_mode);
+
+ drive->waiting_for_dma = 1;
+
+ return 0;
+}
+
+static void icside_dma_exec_cmd(ide_drive_t *drive, u8 cmd)
+{
+ /* issue cmd to drive */
+ ide_execute_command(drive, cmd, ide_dma_intr, 2 * WAIT_CMD, NULL);
+}
+
+static int icside_dma_test_irq(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct icside_state *state = hwif->hwif_data;
+
+ return readb(state->irq_port +
+ (hwif->channel ?
+ ICS_ARCIN_V6_INTRSTAT_2 :
+ ICS_ARCIN_V6_INTRSTAT_1)) & 1;
+}
+
+static int icside_dma_timeout(ide_drive_t *drive)
+{
+ printk(KERN_ERR "%s: DMA timeout occurred: ", drive->name);
+
+ if (icside_dma_test_irq(drive))
+ return 0;
+
+ ide_dump_status(drive, "DMA timeout",
+ HWIF(drive)->INB(IDE_STATUS_REG));
+
+ return icside_dma_end(drive);
+}
+
+static int icside_dma_lostirq(ide_drive_t *drive)
+{
+ printk(KERN_ERR "%s: IRQ lost\n", drive->name);
+ return 1;
+}
+
+static void icside_dma_init(ide_hwif_t *hwif)
+{
+ int autodma = 0;
+
+#ifdef CONFIG_IDEDMA_ICS_AUTO
+ autodma = 1;
+#endif
+
+ printk(" %s: SG-DMA", hwif->name);
+
+ hwif->atapi_dma = 1;
+ hwif->mwdma_mask = 7; /* MW0..2 */
+ hwif->swdma_mask = 7; /* SW0..2 */
+
+ hwif->dmatable_cpu = NULL;
+ hwif->dmatable_dma = 0;
+ hwif->speedproc = icside_set_speed;
+ hwif->autodma = autodma;
+
+ hwif->ide_dma_check = icside_dma_check;
+ hwif->ide_dma_host_off = icside_dma_host_off;
+ hwif->ide_dma_off_quietly = icside_dma_off_quietly;
+ hwif->ide_dma_host_on = icside_dma_host_on;
+ hwif->ide_dma_on = icside_dma_on;
+ hwif->dma_setup = icside_dma_setup;
+ hwif->dma_exec_cmd = icside_dma_exec_cmd;
+ hwif->dma_start = icside_dma_start;
+ hwif->ide_dma_end = icside_dma_end;
+ hwif->ide_dma_test_irq = icside_dma_test_irq;
+ hwif->ide_dma_timeout = icside_dma_timeout;
+ hwif->ide_dma_lostirq = icside_dma_lostirq;
+
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+
+ printk(" capable%s\n", hwif->autodma ? ", auto-enable" : "");
+}
+#else
+#define icside_dma_init(hwif) (0)
+#endif
+
+static ide_hwif_t *icside_find_hwif(unsigned long dataport)
+{
+ ide_hwif_t *hwif;
+ int index;
+
+ for (index = 0; index < MAX_HWIFS; ++index) {
+ hwif = &ide_hwifs[index];
+ if (hwif->io_ports[IDE_DATA_OFFSET] == dataport)
+ goto found;
+ }
+
+ for (index = 0; index < MAX_HWIFS; ++index) {
+ hwif = &ide_hwifs[index];
+ if (!hwif->io_ports[IDE_DATA_OFFSET])
+ goto found;
+ }
+
+ hwif = NULL;
+found:
+ return hwif;
+}
+
+static ide_hwif_t *
+icside_setup(void __iomem *base, struct cardinfo *info, struct expansion_card *ec)
+{
+ unsigned long port = (unsigned long)base + info->dataoffset;
+ ide_hwif_t *hwif;
+
+ hwif = icside_find_hwif(port);
+ if (hwif) {
+ int i;
+
+ memset(&hwif->hw, 0, sizeof(hw_regs_t));
+
+ /*
+ * Ensure we're using MMIO
+ */
+ default_hwif_mmiops(hwif);
+ hwif->mmio = 2;
+
+ for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
+ hwif->hw.io_ports[i] = port;
+ hwif->io_ports[i] = port;
+ port += 1 << info->stepping;
+ }
+ hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)base + info->ctrloffset;
+ hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)base + info->ctrloffset;
+ hwif->hw.irq = ec->irq;
+ hwif->irq = ec->irq;
+ hwif->noprobe = 0;
+ hwif->chipset = ide_acorn;
+ hwif->gendev.parent = &ec->dev;
+ }
+
+ return hwif;
+}
+
+static int __init
+icside_register_v5(struct icside_state *state, struct expansion_card *ec)
+{
+ ide_hwif_t *hwif;
+ void __iomem *base;
+
+ base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
+ ecard_resource_len(ec, ECARD_RES_MEMC));
+ if (!base)
+ return -ENOMEM;
+
+ state->irq_port = base;
+
+ ec->irqaddr = base + ICS_ARCIN_V5_INTRSTAT;
+ ec->irqmask = 1;
+ ec->irq_data = state;
+ ec->ops = &icside_ops_arcin_v5;
+
+ /*
+ * Be on the safe side - disable interrupts
+ */
+ icside_irqdisable_arcin_v5(ec, 0);
+
+ hwif = icside_setup(base, &icside_cardinfo_v5, ec);
+ if (!hwif) {
+ iounmap(base);
+ return -ENODEV;
+ }
+
+ state->hwif[0] = hwif;
+
+ probe_hwif_init(hwif);
+ create_proc_ide_interfaces();
+
+ return 0;
+}
+
+static int __init
+icside_register_v6(struct icside_state *state, struct expansion_card *ec)
+{
+ ide_hwif_t *hwif, *mate;
+ void __iomem *ioc_base, *easi_base;
+ unsigned int sel = 0;
+ int ret;
+
+ ioc_base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
+ ecard_resource_len(ec, ECARD_RES_IOCFAST));
+ if (!ioc_base) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ easi_base = ioc_base;
+
+ if (ecard_resource_flags(ec, ECARD_RES_EASI)) {
+ easi_base = ioremap(ecard_resource_start(ec, ECARD_RES_EASI),
+ ecard_resource_len(ec, ECARD_RES_EASI));
+ if (!easi_base) {
+ ret = -ENOMEM;
+ goto unmap_slot;
+ }
+
+ /*
+ * Enable access to the EASI region.
+ */
+ sel = 1 << 5;
+ }
+
+ writeb(sel, ioc_base);
+
+ ec->irq_data = state;
+ ec->ops = &icside_ops_arcin_v6;
+
+ state->irq_port = easi_base;
+ state->ioc_base = ioc_base;
+
+ /*
+ * Be on the safe side - disable interrupts
+ */
+ icside_irqdisable_arcin_v6(ec, 0);
+
+ /*
+ * Find and register the interfaces.
+ */
+ hwif = icside_setup(easi_base, &icside_cardinfo_v6_1, ec);
+ mate = icside_setup(easi_base, &icside_cardinfo_v6_2, ec);
+
+ if (!hwif || !mate) {
+ ret = -ENODEV;
+ goto unmap_port;
+ }
+
+ state->hwif[0] = hwif;
+ state->hwif[1] = mate;
+
+ hwif->maskproc = icside_maskproc;
+ hwif->channel = 0;
+ hwif->hwif_data = state;
+ hwif->mate = mate;
+ hwif->serialized = 1;
+ hwif->config_data = (unsigned long)ioc_base;
+ hwif->select_data = sel;
+ hwif->hw.dma = ec->dma;
+
+ mate->maskproc = icside_maskproc;
+ mate->channel = 1;
+ mate->hwif_data = state;
+ mate->mate = hwif;
+ mate->serialized = 1;
+ mate->config_data = (unsigned long)ioc_base;
+ mate->select_data = sel | 1;
+ mate->hw.dma = ec->dma;
+
+ if (ec->dma != NO_DMA && !request_dma(ec->dma, hwif->name)) {
+ icside_dma_init(hwif);
+ icside_dma_init(mate);
+ }
+
+ probe_hwif_init(hwif);
+ probe_hwif_init(mate);
+ create_proc_ide_interfaces();
+
+ return 0;
+
+ unmap_port:
+ if (easi_base != ioc_base)
+ iounmap(easi_base);
+ unmap_slot:
+ iounmap(ioc_base);
+ out:
+ return ret;
+}
+
+static int __devinit
+icside_probe(struct expansion_card *ec, const struct ecard_id *id)
+{
+ struct icside_state *state;
+ void __iomem *idmem;
+ int ret;
+
+ ret = ecard_request_resources(ec);
+ if (ret)
+ goto out;
+
+ state = kmalloc(sizeof(struct icside_state), GFP_KERNEL);
+ if (!state) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ memset(state, 0, sizeof(state));
+ state->type = ICS_TYPE_NOTYPE;
+ state->dev = &ec->dev;
+
+ idmem = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
+ ecard_resource_len(ec, ECARD_RES_IOCFAST));
+ if (idmem) {
+ unsigned int type;
+
+ type = readb(idmem + ICS_IDENT_OFFSET) & 1;
+ type |= (readb(idmem + ICS_IDENT_OFFSET + 4) & 1) << 1;
+ type |= (readb(idmem + ICS_IDENT_OFFSET + 8) & 1) << 2;
+ type |= (readb(idmem + ICS_IDENT_OFFSET + 12) & 1) << 3;
+ iounmap(idmem);
+
+ state->type = type;
+ }
+
+ switch (state->type) {
+ case ICS_TYPE_A3IN:
+ dev_warn(&ec->dev, "A3IN unsupported\n");
+ ret = -ENODEV;
+ break;
+
+ case ICS_TYPE_A3USER:
+ dev_warn(&ec->dev, "A3USER unsupported\n");
+ ret = -ENODEV;
+ break;
+
+ case ICS_TYPE_V5:
+ ret = icside_register_v5(state, ec);
+ break;
+
+ case ICS_TYPE_V6:
+ ret = icside_register_v6(state, ec);
+ break;
+
+ default:
+ dev_warn(&ec->dev, "unknown interface type\n");
+ ret = -ENODEV;
+ break;
+ }
+
+ if (ret == 0) {
+ ecard_set_drvdata(ec, state);
+ goto out;
+ }
+
+ kfree(state);
+ release:
+ ecard_release_resources(ec);
+ out:
+ return ret;
+}
+
+static void __devexit icside_remove(struct expansion_card *ec)
+{
+ struct icside_state *state = ecard_get_drvdata(ec);
+
+ switch (state->type) {
+ case ICS_TYPE_V5:
+ /* FIXME: tell IDE to stop using the interface */
+
+ /* Disable interrupts */
+ icside_irqdisable_arcin_v5(ec, 0);
+ break;
+
+ case ICS_TYPE_V6:
+ /* FIXME: tell IDE to stop using the interface */
+ if (ec->dma != NO_DMA)
+ free_dma(ec->dma);
+
+ /* Disable interrupts */
+ icside_irqdisable_arcin_v6(ec, 0);
+
+ /* Reset the ROM pointer/EASI selection */
+ writeb(0, state->ioc_base);
+ break;
+ }
+
+ ecard_set_drvdata(ec, NULL);
+ ec->ops = NULL;
+ ec->irq_data = NULL;
+
+ if (state->ioc_base)
+ iounmap(state->ioc_base);
+ if (state->ioc_base != state->irq_port)
+ iounmap(state->irq_port);
+
+ kfree(state);
+ ecard_release_resources(ec);
+}
+
+static void icside_shutdown(struct expansion_card *ec)
+{
+ struct icside_state *state = ecard_get_drvdata(ec);
+ unsigned long flags;
+
+ /*
+ * Disable interrupts from this card. We need to do
+ * this before disabling EASI since we may be accessing
+ * this register via that region.
+ */
+ local_irq_save(flags);
+ ec->ops->irqdisable(ec, 0);
+ local_irq_restore(flags);
+
+ /*
+ * Reset the ROM pointer so that we can read the ROM
+ * after a soft reboot. This also disables access to
+ * the IDE taskfile via the EASI region.
+ */
+ if (state->ioc_base)
+ writeb(0, state->ioc_base);
+}
+
+static const struct ecard_id icside_ids[] = {
+ { MANU_ICS, PROD_ICS_IDE },
+ { MANU_ICS2, PROD_ICS2_IDE },
+ { 0xffff, 0xffff }
+};
+
+static struct ecard_driver icside_driver = {
+ .probe = icside_probe,
+ .remove = __devexit_p(icside_remove),
+ .shutdown = icside_shutdown,
+ .id_table = icside_ids,
+ .drv = {
+ .name = "icside",
+ },
+};
+
+static int __init icside_init(void)
+{
+ return ecard_register_driver(&icside_driver);
+}
+
+MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ICS IDE driver");
+
+module_init(icside_init);
diff --git a/drivers/ide/arm/ide_arm.c b/drivers/ide/arm/ide_arm.c
new file mode 100644
index 00000000000..23488c4d1fc
--- /dev/null
+++ b/drivers/ide/arm/ide_arm.c
@@ -0,0 +1,43 @@
+/*
+ * ARM/ARM26 default IDE host driver
+ *
+ * Copyright (C) 2004 Bartlomiej Zolnierkiewicz
+ * Based on code by: Russell King, Ian Molton and Alexander Schulz.
+ *
+ * May be copied or modified under the terms of the GNU General Public License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#ifdef CONFIG_ARM26
+# define IDE_ARM_HOST (machine_is_a5k())
+#else
+# define IDE_ARM_HOST (1)
+#endif
+
+#ifdef CONFIG_ARCH_CLPS7500
+# include <asm/arch/hardware.h>
+#
+# define IDE_ARM_IO (ISASLOT_IO + 0x1f0)
+# define IDE_ARM_IRQ IRQ_ISA_14
+#else
+# define IDE_ARM_IO 0x1f0
+# define IDE_ARM_IRQ IRQ_HARDDISK
+#endif
+
+void __init ide_arm_init(void)
+{
+ if (IDE_ARM_HOST) {
+ hw_regs_t hw;
+
+ memset(&hw, 0, sizeof(hw));
+ ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206);
+ hw.irq = IDE_ARM_IRQ;
+ ide_register_hw(&hw, NULL);
+ }
+}
diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c
new file mode 100644
index 00000000000..3058217767d
--- /dev/null
+++ b/drivers/ide/arm/rapide.c
@@ -0,0 +1,125 @@
+/*
+ * linux/drivers/ide/arm/rapide.c
+ *
+ * Copyright (c) 1996-2002 Russell King.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/blkdev.h>
+#include <linux/errno.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/ecard.h>
+
+/*
+ * Something like this really should be in generic code, but isn't.
+ */
+static ide_hwif_t *
+rapide_locate_hwif(void __iomem *base, void __iomem *ctrl, unsigned int sz, int irq)
+{
+ unsigned long port = (unsigned long)base;
+ ide_hwif_t *hwif;
+ int index, i;
+
+ for (index = 0; index < MAX_HWIFS; ++index) {
+ hwif = ide_hwifs + index;
+ if (hwif->io_ports[IDE_DATA_OFFSET] == port)
+ goto found;
+ }
+
+ for (index = 0; index < MAX_HWIFS; ++index) {
+ hwif = ide_hwifs + index;
+ if (hwif->io_ports[IDE_DATA_OFFSET] == 0)
+ goto found;
+ }
+
+ return NULL;
+
+ found:
+ for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
+ hwif->hw.io_ports[i] = port;
+ hwif->io_ports[i] = port;
+ port += sz;
+ }
+ hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
+ hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
+ hwif->hw.irq = hwif->irq = irq;
+ hwif->mmio = 2;
+ default_hwif_mmiops(hwif);
+
+ return hwif;
+}
+
+static int __devinit
+rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
+{
+ ide_hwif_t *hwif;
+ void __iomem *base;
+ int ret;
+
+ ret = ecard_request_resources(ec);
+ if (ret)
+ goto out;
+
+ base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
+ ecard_resource_len(ec, ECARD_RES_MEMC));
+ if (!base) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ hwif = rapide_locate_hwif(base, base + 0x818, 1 << 6, ec->irq);
+ if (hwif) {
+ hwif->hwif_data = base;
+ hwif->gendev.parent = &ec->dev;
+ hwif->noprobe = 0;
+ probe_hwif_init(hwif);
+ create_proc_ide_interfaces();
+ ecard_set_drvdata(ec, hwif);
+ goto out;
+ }
+
+ iounmap(base);
+ release:
+ ecard_release_resources(ec);
+ out:
+ return ret;
+}
+
+static void __devexit rapide_remove(struct expansion_card *ec)
+{
+ ide_hwif_t *hwif = ecard_get_drvdata(ec);
+
+ ecard_set_drvdata(ec, NULL);
+
+ /* there must be a better way */
+ ide_unregister(hwif - ide_hwifs);
+ iounmap(hwif->hwif_data);
+ ecard_release_resources(ec);
+}
+
+static struct ecard_id rapide_ids[] = {
+ { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 },
+ { 0xffff, 0xffff }
+};
+
+static struct ecard_driver rapide_driver = {
+ .probe = rapide_probe,
+ .remove = __devexit_p(rapide_remove),
+ .id_table = rapide_ids,
+ .drv = {
+ .name = "rapide",
+ },
+};
+
+static int __init rapide_init(void)
+{
+ return ecard_register_driver(&rapide_driver);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Yellowstone RAPIDE driver");
+
+module_init(rapide_init);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 00:51:53 +0000