summaryrefslogtreecommitdiff
path: root/drivers/ata/sata_qstor.c
diff options
context:
space:
mode:
authorTejun Heo <htejun@gmail.com>2007-02-01 09:06:36 +0300
committerJeff Garzik <jeff@garzik.org>2007-02-10 01:39:38 +0300
commit0d5ff566779f894ca9937231a181eb31e4adff0e (patch)
treed1c7495c932581c1d41aa7f0fdb303348da49106 /drivers/ata/sata_qstor.c
parent1a68ff13c8a9b517de3fd4187dc525412a6eba1b (diff)
downloadlinux-0d5ff566779f894ca9937231a181eb31e4adff0e.tar.xz
libata: convert to iomap
Convert libata core layer and LLDs to use iomap. * managed iomap is used. Pointer to pcim_iomap_table() is cached at host->iomap and used through out LLDs. This basically replaces host->mmio_base. * if possible, pcim_iomap_regions() is used Most iomap operation conversions are taken from Jeff Garzik <jgarzik@pobox.com>'s iomap branch. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/sata_qstor.c')
-rw-r--r--drivers/ata/sata_qstor.c54
1 files changed, 29 insertions, 25 deletions
diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c
index 339f61648af6..cd579b180274 100644
--- a/drivers/ata/sata_qstor.c
+++ b/drivers/ata/sata_qstor.c
@@ -43,6 +43,8 @@
#define DRV_VERSION "0.06"
enum {
+ QS_MMIO_BAR = 4,
+
QS_PORTS = 4,
QS_MAX_PRD = LIBATA_MAX_PRD,
QS_CPB_ORDER = 6,
@@ -155,7 +157,7 @@ static const struct ata_port_operations qs_ata_ops = {
.phy_reset = qs_phy_reset,
.qc_prep = qs_qc_prep,
.qc_issue = qs_qc_issue,
- .data_xfer = ata_mmio_data_xfer,
+ .data_xfer = ata_data_xfer,
.eng_timeout = qs_eng_timeout,
.irq_handler = qs_intr,
.irq_clear = qs_irq_clear,
@@ -194,6 +196,11 @@ static struct pci_driver qs_ata_pci_driver = {
.remove = ata_pci_remove_one,
};
+static void __iomem *qs_mmio_base(struct ata_host *host)
+{
+ return host->iomap[QS_MMIO_BAR];
+}
+
static int qs_check_atapi_dma(struct ata_queued_cmd *qc)
{
return 1; /* ATAPI DMA not supported */
@@ -216,7 +223,7 @@ static void qs_irq_clear(struct ata_port *ap)
static inline void qs_enter_reg_mode(struct ata_port *ap)
{
- u8 __iomem *chan = ap->host->mmio_base + (ap->port_no * 0x4000);
+ u8 __iomem *chan = qs_mmio_base(ap->host) + (ap->port_no * 0x4000);
writeb(QS_CTR0_REG, chan + QS_CCT_CTR0);
readb(chan + QS_CCT_CTR0); /* flush */
@@ -224,7 +231,7 @@ static inline void qs_enter_reg_mode(struct ata_port *ap)
static inline void qs_reset_channel_logic(struct ata_port *ap)
{
- u8 __iomem *chan = ap->host->mmio_base + (ap->port_no * 0x4000);
+ u8 __iomem *chan = qs_mmio_base(ap->host) + (ap->port_no * 0x4000);
writeb(QS_CTR1_RCHN, chan + QS_CCT_CTR1);
readb(chan + QS_CCT_CTR0); /* flush */
@@ -254,14 +261,14 @@ static u32 qs_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
if (sc_reg > SCR_CONTROL)
return ~0U;
- return readl((void __iomem *)(ap->ioaddr.scr_addr + (sc_reg * 8)));
+ return readl(ap->ioaddr.scr_addr + (sc_reg * 8));
}
static void qs_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
{
if (sc_reg > SCR_CONTROL)
return;
- writel(val, (void __iomem *)(ap->ioaddr.scr_addr + (sc_reg * 8)));
+ writel(val, ap->ioaddr.scr_addr + (sc_reg * 8));
}
static unsigned int qs_fill_sg(struct ata_queued_cmd *qc)
@@ -338,7 +345,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
static inline void qs_packet_start(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
- u8 __iomem *chan = ap->host->mmio_base + (ap->port_no * 0x4000);
+ u8 __iomem *chan = qs_mmio_base(ap->host) + (ap->port_no * 0x4000);
VPRINTK("ENTER, ap %p\n", ap);
@@ -375,7 +382,7 @@ static inline unsigned int qs_intr_pkt(struct ata_host *host)
{
unsigned int handled = 0;
u8 sFFE;
- u8 __iomem *mmio_base = host->mmio_base;
+ u8 __iomem *mmio_base = qs_mmio_base(host);
do {
u32 sff0 = readl(mmio_base + QS_HST_SFF);
@@ -467,7 +474,7 @@ static irqreturn_t qs_intr(int irq, void *dev_instance)
return IRQ_RETVAL(handled);
}
-static void qs_ata_setup_port(struct ata_ioports *port, unsigned long base)
+static void qs_ata_setup_port(struct ata_ioports *port, void __iomem *base)
{
port->cmd_addr =
port->data_addr = base + 0x400;
@@ -489,7 +496,7 @@ static int qs_port_start(struct ata_port *ap)
{
struct device *dev = ap->host->dev;
struct qs_port_priv *pp;
- void __iomem *mmio_base = ap->host->mmio_base;
+ void __iomem *mmio_base = qs_mmio_base(ap->host);
void __iomem *chan = mmio_base + (ap->port_no * 0x4000);
u64 addr;
int rc;
@@ -516,7 +523,7 @@ static int qs_port_start(struct ata_port *ap)
static void qs_host_stop(struct ata_host *host)
{
- void __iomem *mmio_base = host->mmio_base;
+ void __iomem *mmio_base = qs_mmio_base(host);
writeb(0, mmio_base + QS_HCT_CTRL); /* disable host interrupts */
writeb(QS_CNFG3_GSRST, mmio_base + QS_HCF_CNFG3); /* global reset */
@@ -524,7 +531,7 @@ static void qs_host_stop(struct ata_host *host)
static void qs_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
{
- void __iomem *mmio_base = pe->mmio_base;
+ void __iomem *mmio_base = pe->iomap[QS_MMIO_BAR];
unsigned int port_no;
writeb(0, mmio_base + QS_HCT_CTRL); /* disable host interrupts */
@@ -599,8 +606,8 @@ static int qs_ata_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
static int printed_version;
- struct ata_probe_ent *probe_ent = NULL;
- void __iomem *mmio_base;
+ struct ata_probe_ent *probe_ent;
+ void __iomem * const *iomap;
unsigned int board_idx = (unsigned int) ent->driver_data;
int rc, port_no;
@@ -611,18 +618,15 @@ static int qs_ata_init_one(struct pci_dev *pdev,
if (rc)
return rc;
- rc = pci_request_regions(pdev, DRV_NAME);
- if (rc)
- return rc;
-
- if ((pci_resource_flags(pdev, 4) & IORESOURCE_MEM) == 0)
+ if ((pci_resource_flags(pdev, QS_MMIO_BAR) & IORESOURCE_MEM) == 0)
return -ENODEV;
- mmio_base = pcim_iomap(pdev, 4, 0);
- if (mmio_base == NULL)
- return -ENOMEM;
+ rc = pcim_iomap_regions(pdev, 1 << QS_MMIO_BAR, DRV_NAME);
+ if (rc)
+ return rc;
+ iomap = pcim_iomap_table(pdev);
- rc = qs_set_dma_masks(pdev, mmio_base);
+ rc = qs_set_dma_masks(pdev, iomap[QS_MMIO_BAR]);
if (rc)
return rc;
@@ -642,12 +646,12 @@ static int qs_ata_init_one(struct pci_dev *pdev,
probe_ent->irq = pdev->irq;
probe_ent->irq_flags = IRQF_SHARED;
- probe_ent->mmio_base = mmio_base;
+ probe_ent->iomap = iomap;
probe_ent->n_ports = QS_PORTS;
for (port_no = 0; port_no < probe_ent->n_ports; ++port_no) {
- unsigned long chan = (unsigned long)mmio_base +
- (port_no * 0x4000);
+ void __iomem *chan =
+ probe_ent->iomap[QS_MMIO_BAR] + (port_no * 0x4000);
qs_ata_setup_port(&probe_ent->port[port_no], chan);
}