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path: root/drivers/ata/pata_amd.c
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Diffstat (limited to 'drivers/ata/pata_amd.c')
-rw-r--r--drivers/ata/pata_amd.c718
1 files changed, 718 insertions, 0 deletions
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
new file mode 100644
index 00000000000..3293cf9a7eb
--- /dev/null
+++ b/drivers/ata/pata_amd.c
@@ -0,0 +1,718 @@
+/*
+ * pata_amd.c - AMD PATA for new ATA layer
+ * (C) 2005-2006 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * Based on pata-sil680. Errata information is taken from data sheets
+ * and the amd74xx.c driver by Vojtech Pavlik. Nvidia SATA devices are
+ * claimed by sata-nv.c.
+ *
+ * TODO:
+ * Variable system clock when/if it makes sense
+ * Power management on ports
+ *
+ *
+ * Documentation publically available.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_amd"
+#define DRV_VERSION "0.2.3"
+
+/**
+ * timing_setup - shared timing computation and load
+ * @ap: ATA port being set up
+ * @adev: drive being configured
+ * @offset: port offset
+ * @speed: target speed
+ * @clock: clock multiplier (number of times 33MHz for this part)
+ *
+ * Perform the actual timing set up for Nvidia or AMD PATA devices.
+ * The actual devices vary so they all call into this helper function
+ * providing the clock multipler and offset (because AMD and Nvidia put
+ * the ports at different locations).
+ */
+
+static void timing_setup(struct ata_port *ap, struct ata_device *adev, int offset, int speed, int clock)
+{
+ static const unsigned char amd_cyc2udma[] = {
+ 6, 6, 5, 4, 0, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 7
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ struct ata_device *peer = ata_dev_pair(adev);
+ int dn = ap->port_no * 2 + adev->devno;
+ struct ata_timing at, apeer;
+ int T, UT;
+ const int amd_clock = 33333; /* KHz. */
+ u8 t;
+
+ T = 1000000000 / amd_clock;
+ UT = T / min_t(int, max_t(int, clock, 1), 2);
+
+ if (ata_timing_compute(adev, speed, &at, T, UT) < 0) {
+ dev_printk(KERN_ERR, &pdev->dev, "unknown mode %d.\n", speed);
+ return;
+ }
+
+ if (peer) {
+ /* This may be over conservative */
+ if (peer->dma_mode) {
+ ata_timing_compute(peer, peer->dma_mode, &apeer, T, UT);
+ ata_timing_merge(&apeer, &at, &at, ATA_TIMING_8BIT);
+ }
+ ata_timing_compute(peer, peer->pio_mode, &apeer, T, UT);
+ ata_timing_merge(&apeer, &at, &at, ATA_TIMING_8BIT);
+ }
+
+ if (speed == XFER_UDMA_5 && amd_clock <= 33333) at.udma = 1;
+ if (speed == XFER_UDMA_6 && amd_clock <= 33333) at.udma = 15;
+
+ /*
+ * Now do the setup work
+ */
+
+ /* Configure the address set up timing */
+ pci_read_config_byte(pdev, offset + 0x0C, &t);
+ t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(at.setup, 1, 4) - 1) << ((3 - dn) << 1));
+ pci_write_config_byte(pdev, offset + 0x0C , t);
+
+ /* Configure the 8bit I/O timing */
+ pci_write_config_byte(pdev, offset + 0x0E + (1 - (dn >> 1)),
+ ((FIT(at.act8b, 1, 16) - 1) << 4) | (FIT(at.rec8b, 1, 16) - 1));
+
+ /* Drive timing */
+ pci_write_config_byte(pdev, offset + 0x08 + (3 - dn),
+ ((FIT(at.active, 1, 16) - 1) << 4) | (FIT(at.recover, 1, 16) - 1));
+
+ switch (clock) {
+ case 1:
+ t = at.udma ? (0xc0 | (FIT(at.udma, 2, 5) - 2)) : 0x03;
+ break;
+
+ case 2:
+ t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 2, 10)]) : 0x03;
+ break;
+
+ case 3:
+ t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 10)]) : 0x03;
+ break;
+
+ case 4:
+ t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 15)]) : 0x03;
+ break;
+
+ default:
+ return;
+ }
+
+ /* UDMA timing */
+ pci_write_config_byte(pdev, offset + 0x10 + (3 - dn), t);
+}
+
+/**
+ * amd_probe_init - cable detection
+ * @ap: ATA port
+ *
+ * Perform cable detection. The BIOS stores this in PCI config
+ * space for us.
+ */
+
+static int amd_pre_reset(struct ata_port *ap)
+{
+ static const u32 bitmask[2] = {0x03, 0xC0};
+ static const struct pci_bits amd_enable_bits[] = {
+ { 0x40, 1, 0x02, 0x02 },
+ { 0x40, 1, 0x01, 0x01 }
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ata66;
+
+ if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+
+ pci_read_config_byte(pdev, 0x42, &ata66);
+ if (ata66 & bitmask[ap->port_no])
+ ap->cbl = ATA_CBL_PATA80;
+ else
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+
+}
+
+static void amd_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, amd_pre_reset,
+ ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+
+static int amd_early_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static struct pci_bits amd_enable_bits[] = {
+ { 0x40, 1, 0x02, 0x02 },
+ { 0x40, 1, 0x01, 0x01 }
+ };
+
+ if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ /* No host side cable detection */
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+
+}
+
+static void amd_early_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, amd_early_pre_reset,
+ ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+
+/**
+ * amd33_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the AMD registers for PIO mode.
+ */
+
+static void amd33_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->pio_mode, 1);
+}
+
+static void amd66_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->pio_mode, 2);
+}
+
+static void amd100_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->pio_mode, 3);
+}
+
+static void amd133_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->pio_mode, 4);
+}
+
+/**
+ * amd33_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the MWDMA/UDMA modes for the AMD and Nvidia
+ * chipset.
+ */
+
+static void amd33_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->dma_mode, 1);
+}
+
+static void amd66_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->dma_mode, 2);
+}
+
+static void amd100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->dma_mode, 3);
+}
+
+static void amd133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->dma_mode, 4);
+}
+
+
+/**
+ * nv_probe_init - cable detection
+ * @ap: ATA port
+ *
+ * Perform cable detection. The BIOS stores this in PCI config
+ * space for us.
+ */
+
+static int nv_pre_reset(struct ata_port *ap) {
+ static const u8 bitmask[2] = {0x03, 0xC0};
+ static const struct pci_bits nv_enable_bits[] = {
+ { 0x50, 1, 0x02, 0x02 },
+ { 0x50, 1, 0x01, 0x01 }
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ata66;
+ u16 udma;
+
+ if (!pci_test_config_bits(pdev, &nv_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+
+
+ pci_read_config_byte(pdev, 0x52, &ata66);
+ if (ata66 & bitmask[ap->port_no])
+ ap->cbl = ATA_CBL_PATA80;
+ else
+ ap->cbl = ATA_CBL_PATA40;
+
+ /* We now have to double check because the Nvidia boxes BIOS
+ doesn't always set the cable bits but does set mode bits */
+
+ pci_read_config_word(pdev, 0x62 - 2 * ap->port_no, &udma);
+ if ((udma & 0xC4) == 0xC4 || (udma & 0xC400) == 0xC400)
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+}
+
+static void nv_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, nv_pre_reset,
+ ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+/**
+ * nv100_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the AMD registers for PIO mode.
+ */
+
+static void nv100_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x50, adev->pio_mode, 3);
+}
+
+static void nv133_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x50, adev->pio_mode, 4);
+}
+
+/**
+ * nv100_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the MWDMA/UDMA modes for the AMD and Nvidia
+ * chipset.
+ */
+
+static void nv100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x50, adev->dma_mode, 3);
+}
+
+static void nv133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x50, adev->dma_mode, 4);
+}
+
+static struct scsi_host_template amd_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations amd33_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = amd33_set_piomode,
+ .set_dmamode = amd33_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = amd_early_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations amd66_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = amd66_set_piomode,
+ .set_dmamode = amd66_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = amd_early_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations amd100_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = amd100_set_piomode,
+ .set_dmamode = amd100_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = amd_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations amd133_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = amd133_set_piomode,
+ .set_dmamode = amd133_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = amd_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations nv100_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = nv100_set_piomode,
+ .set_dmamode = nv100_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = nv_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations nv133_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = nv133_set_piomode,
+ .set_dmamode = nv133_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = nv_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info[10] = {
+ { /* 0: AMD 7401 */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07, /* No SWDMA */
+ .udma_mask = 0x07, /* UDMA 33 */
+ .port_ops = &amd33_port_ops
+ },
+ { /* 1: Early AMD7409 - no swdma */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x1f, /* UDMA 66 */
+ .port_ops = &amd66_port_ops
+ },
+ { /* 2: AMD 7409, no swdma errata */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x1f, /* UDMA 66 */
+ .port_ops = &amd66_port_ops
+ },
+ { /* 3: AMD 7411 */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f, /* UDMA 100 */
+ .port_ops = &amd100_port_ops
+ },
+ { /* 4: AMD 7441 */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f, /* UDMA 100 */
+ .port_ops = &amd100_port_ops
+ },
+ { /* 5: AMD 8111*/
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f, /* UDMA 133, no swdma */
+ .port_ops = &amd133_port_ops
+ },
+ { /* 6: AMD 8111 UDMA 100 (Serenade) */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f, /* UDMA 100, no swdma */
+ .port_ops = &amd133_port_ops
+ },
+ { /* 7: Nvidia Nforce */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f, /* UDMA 100 */
+ .port_ops = &nv100_port_ops
+ },
+ { /* 8: Nvidia Nforce2 and later */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f, /* UDMA 133, no swdma */
+ .port_ops = &nv133_port_ops
+ },
+ { /* 9: AMD CS5536 (Geode companion) */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f, /* UDMA 100 */
+ .port_ops = &amd100_port_ops
+ }
+ };
+ static struct ata_port_info *port_info[2];
+ static int printed_version;
+ int type = id->driver_data;
+ u8 rev;
+ u8 fifo;
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
+
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
+ pci_read_config_byte(pdev, 0x41, &fifo);
+
+ /* Check for AMD7409 without swdma errata and if found adjust type */
+ if (type == 1 && rev > 0x7)
+ type = 2;
+
+ /* Check for AMD7411 */
+ if (type == 3)
+ /* FIFO is broken */
+ pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
+ else
+ pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
+
+ /* Serenade ? */
+ if (type == 5 && pdev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
+ pdev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
+ type = 6; /* UDMA 100 only */
+
+ if (type < 3)
+ ata_pci_clear_simplex(pdev);
+
+ /* And fire it up */
+
+ port_info[0] = port_info[1] = &info[type];
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static const struct pci_device_id amd[] = {
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_COBRA_7401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7409, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7411, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_OPUS_7441, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
+ { 0, },
+};
+
+static struct pci_driver amd_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = amd,
+ .probe = amd_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init amd_init(void)
+{
+ return pci_register_driver(&amd_pci_driver);
+}
+
+static void __exit amd_exit(void)
+{
+ pci_unregister_driver(&amd_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for AMD PATA IDE");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, amd);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(amd_init);
+module_exit(amd_exit);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 19:03:49 +0000