Merge branch 'gfar' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into upstream

1 files changed, 137 insertions, 56 deletions

diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index d3d5c0d57032..baca6d79bb0b 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -44,7 +44,6 @@
 #include <linux/device.h>
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
-#include <asm/io.h>
 
 #define DRV_NAME        "sata_via"
 #define DRV_VERSION     "2.0"
@@ -59,11 +58,14 @@ enum {
         SATA_INT_GATE           = 0x41, /* SATA interrupt gating */
         SATA_NATIVE_MODE        = 0x42, /* Native mode enable */
         SATA_PATA_SHARING       = 0x49, /* PATA/SATA sharing func ctrl */
-
+        PATA_UDMA_TIMING        = 0xB3, /* PATA timing for DMA/ cable detect */
+        PATA_PIO_TIMING         = 0xAB, /* PATA timing register */
+        
         PORT0                   = (1 << 1),
         PORT1                   = (1 << 0),
         ALL_PORTS               = PORT0 | PORT1,
-        N_PORTS                 = 2,
+        PATA_PORT               = 2,    /* PATA is port 2 */
+        N_PORTS                 = 3,
 
         NATIVE_MODE_ALL         = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4),
 
@@ -76,6 +78,11 @@ static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg);
 static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
 static void svia_noop_freeze(struct ata_port *ap);
 static void vt6420_error_handler(struct ata_port *ap);
+static void vt6421_sata_error_handler(struct ata_port *ap);
+static void vt6421_pata_error_handler(struct ata_port *ap);
+static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev);
+static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev);
+static int vt6421_port_start(struct ata_port *ap);
 
 static const struct pci_device_id svia_pci_tbl[] = {
         { PCI_VDEVICE(VIA, 0x5337), vt6420 },
@@ -127,7 +134,7 @@ static const struct ata_port_operations vt6420_sata_ops = {
 
         .qc_prep                = ata_qc_prep,
         .qc_issue               = ata_qc_issue_prot,
-        .data_xfer              = ata_pio_data_xfer,
+        .data_xfer              = ata_data_xfer,
 
         .freeze                 = svia_noop_freeze,
         .thaw                   = ata_bmdma_thaw,
@@ -136,15 +143,49 @@ static const struct ata_port_operations vt6420_sata_ops = {
 
         .irq_handler            = ata_interrupt,
         .irq_clear              = ata_bmdma_irq_clear,
+        .irq_on                 = ata_irq_on,
+        .irq_ack                = ata_irq_ack,
 
         .port_start             = ata_port_start,
-        .port_stop              = ata_port_stop,
-        .host_stop              = ata_host_stop,
 };
 
-static const struct ata_port_operations vt6421_sata_ops = {
+static const struct ata_port_operations vt6421_pata_ops = {
         .port_disable           = ata_port_disable,
+        
+        .set_piomode            = vt6421_set_pio_mode,
+        .set_dmamode            = vt6421_set_dma_mode,
+
+        .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,
+
+        .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,
+        .data_xfer              = ata_data_xfer,
+
+        .freeze                 = ata_bmdma_freeze,
+        .thaw                   = ata_bmdma_thaw,
+        .error_handler          = vt6421_pata_error_handler,
+        .post_internal_cmd      = ata_bmdma_post_internal_cmd,
 
+        .irq_handler            = ata_interrupt,
+        .irq_clear              = ata_bmdma_irq_clear,
+        .irq_on                 = ata_irq_on,
+        .irq_ack                = ata_irq_ack,
+
+        .port_start             = vt6421_port_start,
+};
+
+static const struct ata_port_operations vt6421_sata_ops = {
+        .port_disable           = ata_port_disable,
+        
         .tf_load                = ata_tf_load,
         .tf_read                = ata_tf_read,
         .check_status           = ata_check_status,
@@ -158,22 +199,22 @@ static const struct ata_port_operations vt6421_sata_ops = {
 
         .qc_prep                = ata_qc_prep,
         .qc_issue               = ata_qc_issue_prot,
-        .data_xfer              = ata_pio_data_xfer,
+        .data_xfer              = ata_data_xfer,
 
         .freeze                 = ata_bmdma_freeze,
         .thaw                   = ata_bmdma_thaw,
-        .error_handler          = ata_bmdma_error_handler,
+        .error_handler          = vt6421_sata_error_handler,
         .post_internal_cmd      = ata_bmdma_post_internal_cmd,
 
         .irq_handler            = ata_interrupt,
         .irq_clear              = ata_bmdma_irq_clear,
+        .irq_on                 = ata_irq_on,
+        .irq_ack                = ata_irq_ack,
 
         .scr_read               = svia_scr_read,
         .scr_write              = svia_scr_write,
 
-        .port_start             = ata_port_start,
-        .port_stop              = ata_port_stop,
-        .host_stop              = ata_host_stop,
+        .port_start             = vt6421_port_start,
 };
 
 static struct ata_port_info vt6420_port_info = {
@@ -195,14 +236,14 @@ static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg)
 {
         if (sc_reg > SCR_CONTROL)
                 return 0xffffffffU;
-        return inl(ap->ioaddr.scr_addr + (4 * sc_reg));
+        return ioread32(ap->ioaddr.scr_addr + (4 * sc_reg));
 }
 
 static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
 {
         if (sc_reg > SCR_CONTROL)
                 return;
-        outl(val, ap->ioaddr.scr_addr + (4 * sc_reg));
+        iowrite32(val, ap->ioaddr.scr_addr + (4 * sc_reg));
 }
 
 static void svia_noop_freeze(struct ata_port *ap)
@@ -289,6 +330,61 @@ static void vt6420_error_handler(struct ata_port *ap)
                                   NULL, ata_std_postreset);
 }
 
+static int vt6421_pata_prereset(struct ata_port *ap)
+{
+        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+        u8 tmp;
+
+        pci_read_config_byte(pdev, PATA_UDMA_TIMING, &tmp);
+        if (tmp & 0x10)
+                ap->cbl = ATA_CBL_PATA40;
+        else
+                ap->cbl = ATA_CBL_PATA80;
+        return 0;
+}
+
+static void vt6421_pata_error_handler(struct ata_port *ap)
+{
+        return ata_bmdma_drive_eh(ap, vt6421_pata_prereset, ata_std_softreset,
+                                  NULL, ata_std_postreset);
+}
+
+static int vt6421_sata_prereset(struct ata_port *ap)
+{
+        ap->cbl = ATA_CBL_SATA;
+        return 0;
+}
+
+static void vt6421_sata_error_handler(struct ata_port *ap)
+{
+        return ata_bmdma_drive_eh(ap, vt6421_sata_prereset, ata_std_softreset,
+                                  NULL, ata_std_postreset);
+}
+
+static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev)
+{
+        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+        static const u8 pio_bits[] = { 0xA8, 0x65, 0x65, 0x31, 0x20 };
+        pci_write_config_byte(pdev, PATA_PIO_TIMING, pio_bits[adev->pio_mode - XFER_PIO_0]);
+}
+
+static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
+{
+        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+        static const u8 udma_bits[] = { 0xEE, 0xE8, 0xE6, 0xE4, 0xE2, 0xE1, 0xE0, 0xE0 };
+        pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->pio_mode - XFER_UDMA_0]);
+}
+
+static int vt6421_port_start(struct ata_port *ap)
+{
+        if (ap->port_no == PATA_PORT) {
+                ap->ops = &vt6421_pata_ops;
+                ap->mwdma_mask = 0;
+                ap->flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST;
+        }
+        return ata_port_start(ap);
+}
+
 static const unsigned int svia_bar_sizes[] = {
         8, 4, 8, 4, 16, 256
 };
@@ -297,31 +393,28 @@ static const unsigned int vt6421_bar_sizes[] = {
         16, 16, 16, 16, 32, 128
 };
 
-static unsigned long svia_scr_addr(unsigned long addr, unsigned int port)
+static void __iomem * svia_scr_addr(void __iomem *addr, unsigned int port)
 {
         return addr + (port * 128);
 }
 
-static unsigned long vt6421_scr_addr(unsigned long addr, unsigned int port)
+static void __iomem * vt6421_scr_addr(void __iomem *addr, unsigned int port)
 {
         return addr + (port * 64);
 }
 
 static void vt6421_init_addrs(struct ata_probe_ent *probe_ent,
-                              struct pci_dev *pdev,
-                              unsigned int port)
+                              void __iomem * const *iomap, unsigned int port)
 {
-        unsigned long reg_addr = pci_resource_start(pdev, port);
-        unsigned long bmdma_addr = pci_resource_start(pdev, 4) + (port * 8);
-        unsigned long scr_addr;
+        void __iomem *reg_addr = iomap[port];
+        void __iomem *bmdma_addr = iomap[4] + (port * 8);
 
         probe_ent->port[port].cmd_addr = reg_addr;
         probe_ent->port[port].altstatus_addr =
-        probe_ent->port[port].ctl_addr = (reg_addr + 8) | ATA_PCI_CTL_OFS;
+        probe_ent->port[port].ctl_addr = (void __iomem *)
+                ((unsigned long)(reg_addr + 8) | ATA_PCI_CTL_OFS);
         probe_ent->port[port].bmdma_addr = bmdma_addr;
-
-        scr_addr = vt6421_scr_addr(pci_resource_start(pdev, 5), port);
-        probe_ent->port[port].scr_addr = scr_addr;
+        probe_ent->port[port].scr_addr = vt6421_scr_addr(iomap[5], port);
 
         ata_std_ports(&probe_ent->port[port]);
 }
@@ -330,16 +423,16 @@ static struct ata_probe_ent *vt6420_init_probe_ent(struct pci_dev *pdev)
 {
         struct ata_probe_ent *probe_ent;
         struct ata_port_info *ppi[2];
-        
+        void __iomem * const *iomap;
+
         ppi[0] = ppi[1] = &vt6420_port_info;
         probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
         if (!probe_ent)
                 return NULL;
 
-        probe_ent->port[0].scr_addr =
-                svia_scr_addr(pci_resource_start(pdev, 5), 0);
-        probe_ent->port[1].scr_addr =
-                svia_scr_addr(pci_resource_start(pdev, 5), 1);
+        iomap = pcim_iomap_table(pdev);
+        probe_ent->port[0].scr_addr = svia_scr_addr(iomap[5], 0);
+        probe_ent->port[1].scr_addr = svia_scr_addr(iomap[5], 1);
 
         return probe_ent;
 }
@@ -349,7 +442,7 @@ static struct ata_probe_ent *vt6421_init_probe_ent(struct pci_dev *pdev)
         struct ata_probe_ent *probe_ent;
         unsigned int i;
 
-        probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
+        probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
         if (!probe_ent)
                 return NULL;
 
@@ -368,7 +461,7 @@ static struct ata_probe_ent *vt6421_init_probe_ent(struct pci_dev *pdev)
         probe_ent->udma_mask    = 0x7f;
 
         for (i = 0; i < N_PORTS; i++)
-                vt6421_init_addrs(probe_ent, pdev, i);
+                vt6421_init_addrs(probe_ent, pcim_iomap_table(pdev), i);
 
         return probe_ent;
 }
@@ -420,20 +513,19 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         struct ata_probe_ent *probe_ent;
         int board_id = (int) ent->driver_data;
         const int *bar_sizes;
-        int pci_dev_busy = 0;
         u8 tmp8;
 
         if (!printed_version++)
                 dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-        rc = pci_enable_device(pdev);
+        rc = pcim_enable_device(pdev);
         if (rc)
                 return rc;
 
-        rc = pci_request_regions(pdev, DRV_NAME);
+        rc = pcim_iomap_regions(pdev, 0x1f, DRV_NAME);
         if (rc) {
-                pci_dev_busy = 1;
-                goto err_out;
+                pcim_pin_device(pdev);
+                return rc;
         }
 
         if (board_id == vt6420) {
@@ -442,8 +534,7 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                         dev_printk(KERN_ERR, &pdev->dev,
                                    "SATA master/slave not supported (0x%x)\n",
                                    (int) tmp8);
-                        rc = -EIO;
-                        goto err_out_regions;
+                        return -EIO;
                 }
 
                 bar_sizes = &svia_bar_sizes[0];
@@ -459,16 +550,15 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                                 i,
                                 (unsigned long long)pci_resource_start(pdev, i),
                                 (unsigned long long)pci_resource_len(pdev, i));
-                        rc = -ENODEV;
-                        goto err_out_regions;
+                        return -ENODEV;
                 }
 
         rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
         if (rc)
-                goto err_out_regions;
+                return rc;
         rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
         if (rc)
-                goto err_out_regions;
+                return rc;
 
         if (board_id == vt6420)
                 probe_ent = vt6420_init_probe_ent(pdev);
@@ -477,26 +567,18 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 
         if (!probe_ent) {
                 dev_printk(KERN_ERR, &pdev->dev, "out of memory\n");
-                rc = -ENOMEM;
-                goto err_out_regions;
+                return -ENOMEM;
         }
 
         svia_configure(pdev);
 
         pci_set_master(pdev);
 
-        /* FIXME: check ata_device_add return value */
-        ata_device_add(probe_ent);
-        kfree(probe_ent);
+        if (!ata_device_add(probe_ent))
+                return -ENODEV;
 
+        devm_kfree(&pdev->dev, probe_ent);
         return 0;
-
-err_out_regions:
-        pci_release_regions(pdev);
-err_out:
-        if (!pci_dev_busy)
-                pci_disable_device(pdev);
-        return rc;
 }
 
 static int __init svia_init(void)
@@ -511,4 +593,3 @@ static void __exit svia_exit(void)
 
 module_init(svia_init);
 module_exit(svia_exit);
-