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Commit 4d229fe2 authored by Jeff Garzik's avatar Jeff Garzik
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[libata] Promise driver split part 2: remove SX4 code from sata_promise

parent 2abc3c66
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Showing with 8 additions and 1107 deletions
drivers/scsi/sata_promise.c
View file @ 4d229fe2
......@@ -39,10 +39,7 @@
enum {
PDC_PRD_TBL = 0x44, /* Direct command DMA table addr */
PDC_PKT_SUBMIT = 0x40, /* Command packet pointer addr */
PDC_HDMA_PKT_SUBMIT = 0x100, /* Host DMA packet pointer addr */
PDC_INT_SEQMASK = 0x40, /* Mask of asserted SEQ INTs */
PDC_TBG_MODE = 0x41, /* TBG mode */
PDC_FLASH_CTL = 0x44, /* Flash control register */
......@@ -51,141 +48,38 @@ enum {
PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */
PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */
PDC_SLEW_CTL = 0x470, /* slew rate control reg */
PDC_HDMA_CTLSTAT = 0x12C, /* Host DMA control / status */
PDC_20621_SEQCTL = 0x400,
PDC_20621_SEQMASK = 0x480,
PDC_20621_GENERAL_CTL = 0x484,
PDC_20621_PAGE_SIZE = (32 * 1024),
/* chosen, not constant, values; we design our own DIMM mem map */
PDC_20621_DIMM_WINDOW = 0x0C, /* page# for 32K DIMM window */
PDC_20621_DIMM_BASE = 0x00200000,
PDC_20621_DIMM_DATA = (64 * 1024),
PDC_DIMM_DATA_STEP = (256 * 1024),
PDC_DIMM_WINDOW_STEP = (8 * 1024),
PDC_DIMM_HOST_PRD = (6 * 1024),
PDC_DIMM_HOST_PKT = (128 * 0),
PDC_DIMM_HPKT_PRD = (128 * 1),
PDC_DIMM_ATA_PKT = (128 * 2),
PDC_DIMM_APKT_PRD = (128 * 3),
PDC_DIMM_HEADER_SZ = PDC_DIMM_APKT_PRD + 128,
PDC_PAGE_WINDOW = 0x40,
PDC_PAGE_DATA = PDC_PAGE_WINDOW +
(PDC_20621_DIMM_DATA / PDC_20621_PAGE_SIZE),
PDC_PAGE_SET = PDC_DIMM_DATA_STEP / PDC_20621_PAGE_SIZE,
PDC_CHIP0_OFS = 0xC0000, /* offset of chip #0 */
PDC_20621_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) |
(1<<23),
PDC_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) |
(1<<8) | (1<<9) | (1<<10),
board_2037x = 0, /* FastTrak S150 TX2plus */
board_20319 = 1, /* FastTrak S150 TX4 */
board_20621 = 2, /* FastTrak S150 SX4 */
PDC_HAS_PATA = (1 << 1), /* PDC20375 has PATA */
PDC_FLAG_20621 = (1 << 30), /* we have a 20621 */
PDC_RESET = (1 << 11), /* HDMA reset */
PDC_MAX_HDMA = 32,
PDC_HDMA_Q_MASK = (PDC_MAX_HDMA - 1),
PDC_DIMM0_SPD_DEV_ADDRESS = 0x50,
PDC_DIMM1_SPD_DEV_ADDRESS = 0x51,
PDC_MAX_DIMM_MODULE = 0x02,
PDC_I2C_CONTROL_OFFSET = 0x48,
PDC_I2C_ADDR_DATA_OFFSET = 0x4C,
PDC_DIMM0_CONTROL_OFFSET = 0x80,
PDC_DIMM1_CONTROL_OFFSET = 0x84,
PDC_SDRAM_CONTROL_OFFSET = 0x88,
PDC_I2C_WRITE = 0x00000000,
PDC_I2C_READ = 0x00000040,
PDC_I2C_START = 0x00000080,
PDC_I2C_MASK_INT = 0x00000020,
PDC_I2C_COMPLETE = 0x00010000,
PDC_I2C_NO_ACK = 0x00100000,
PDC_DIMM_SPD_SUBADDRESS_START = 0x00,
PDC_DIMM_SPD_SUBADDRESS_END = 0x7F,
PDC_DIMM_SPD_ROW_NUM = 3,
PDC_DIMM_SPD_COLUMN_NUM = 4,
PDC_DIMM_SPD_MODULE_ROW = 5,
PDC_DIMM_SPD_TYPE = 11,
PDC_DIMM_SPD_FRESH_RATE = 12,
PDC_DIMM_SPD_BANK_NUM = 17,
PDC_DIMM_SPD_CAS_LATENCY = 18,
PDC_DIMM_SPD_ATTRIBUTE = 21,
PDC_DIMM_SPD_ROW_PRE_CHARGE = 27,
PDC_DIMM_SPD_ROW_ACTIVE_DELAY = 28,
PDC_DIMM_SPD_RAS_CAS_DELAY = 29,
PDC_DIMM_SPD_ACTIVE_PRECHARGE = 30,
PDC_DIMM_SPD_SYSTEM_FREQ = 126,
PDC_CTL_STATUS = 0x08,
PDC_DIMM_WINDOW_CTLR = 0x0C,
PDC_TIME_CONTROL = 0x3C,
PDC_TIME_PERIOD = 0x40,
PDC_TIME_COUNTER = 0x44,
PDC_GENERAL_CTLR = 0x484,
PCI_PLL_INIT = 0x8A531824,
PCI_X_TCOUNT = 0xEE1E5CFF
};
struct pdc_port_priv {
u8 dimm_buf[(ATA_PRD_SZ * ATA_MAX_PRD) + 512];
u8 *pkt;
dma_addr_t pkt_dma;
};
struct pdc_host_priv {
void *dimm_mmio;
unsigned int doing_hdma;
unsigned int hdma_prod;
unsigned int hdma_cons;
struct {
struct ata_queued_cmd *qc;
unsigned int seq;
unsigned long pkt_ofs;
} hdma[32];
};
static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg);
static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
static void pdc_dma_start(struct ata_queued_cmd *qc);
static void pdc20621_dma_start(struct ata_queued_cmd *qc);
static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
static void pdc_eng_timeout(struct ata_port *ap);
static void pdc_20621_phy_reset (struct ata_port *ap);
static int pdc_port_start(struct ata_port *ap);
static void pdc_port_stop(struct ata_port *ap);
static void pdc_phy_reset(struct ata_port *ap);
static void pdc_fill_sg(struct ata_queued_cmd *qc);
static void pdc20621_fill_sg(struct ata_queued_cmd *qc);
static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf);
static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf);
static void pdc20621_host_stop(struct ata_host_set *host_set);
static inline void pdc_dma_complete (struct ata_port *ap,
struct ata_queued_cmd *qc, int have_err);
static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe);
static int pdc20621_detect_dimm(struct ata_probe_ent *pe);
static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe,
u32 device, u32 subaddr, u32 *pdata);
static int pdc20621_prog_dimm0(struct ata_probe_ent *pe);
static unsigned int pdc20621_prog_dimm_global(struct ata_probe_ent *pe);
#ifdef ATA_VERBOSE_DEBUG
static void pdc20621_get_from_dimm(struct ata_probe_ent *pe,
void *psource, u32 offset, u32 size);
#endif
static void pdc20621_put_to_dimm(struct ata_probe_ent *pe,
void *psource, u32 offset, u32 size);
static Scsi_Host_Template pdc_sata_sht = {
.module = THIS_MODULE,
......@@ -222,22 +116,6 @@ static struct ata_port_operations pdc_sata_ops = {
.port_stop = pdc_port_stop,
};
static struct ata_port_operations pdc_20621_ops = {
.port_disable = ata_port_disable,
.tf_load = pdc_tf_load_mmio,
.tf_read = ata_tf_read_mmio,
.check_status = ata_check_status_mmio,
.exec_command = pdc_exec_command_mmio,
.phy_reset = pdc_20621_phy_reset,
.bmdma_start = pdc20621_dma_start,
.fill_sg = pdc20621_fill_sg,
.eng_timeout = pdc_eng_timeout,
.irq_handler = pdc20621_interrupt,
.port_start = pdc_port_start,
.port_stop = pdc_port_stop,
.host_stop = pdc20621_host_stop,
};
static struct ata_port_info pdc_port_info[] = {
/* board_2037x */
{
......@@ -258,18 +136,6 @@ static struct ata_port_info pdc_port_info[] = {
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_sata_ops,
},
/* board_20621 */
{
.sht = &pdc_sata_sht,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_SRST | ATA_FLAG_MMIO |
PDC_FLAG_20621,
.pio_mask = 0x03, /* pio3-4 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_20621_ops,
},
};
static struct pci_device_id pdc_sata_pci_tbl[] = {
......@@ -285,8 +151,6 @@ static struct pci_device_id pdc_sata_pci_tbl[] = {
board_20319 },
{ PCI_VENDOR_ID_PROMISE, 0x3319, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_20319 },
{ PCI_VENDOR_ID_PROMISE, 0x6622, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_20621 },
{ } /* terminate list */
};
......@@ -299,15 +163,6 @@ static struct pci_driver pdc_sata_pci_driver = {
};
static void pdc20621_host_stop(struct ata_host_set *host_set)
{
struct pdc_host_priv *hpriv = host_set->private_data;
void *dimm_mmio = hpriv->dimm_mmio;
iounmap(dimm_mmio);
kfree(hpriv);
}
static int pdc_port_start(struct ata_port *ap)
{
struct pci_dev *pdev = ap->host_set->pdev;
......@@ -355,14 +210,6 @@ static void pdc_port_stop(struct ata_port *ap)
}
static void pdc_20621_phy_reset (struct ata_port *ap)
{
VPRINTK("ENTER\n");
ap->cbl = ATA_CBL_SATA;
ata_port_probe(ap);
ata_bus_reset(ap);
}
static void pdc_reset_port(struct ata_port *ap)
{
void *mmio = (void *) ap->ioaddr.cmd_addr + PDC_CTLSTAT;
......@@ -531,463 +378,6 @@ static inline unsigned int pdc_prep_lba48(struct ata_taskfile *tf, u8 *buf, unsi
return i;
}
static inline void pdc20621_ata_sg(struct ata_taskfile *tf, u8 *buf,
unsigned int portno,
unsigned int total_len)
{
u32 addr;
unsigned int dw = PDC_DIMM_APKT_PRD >> 2;
u32 *buf32 = (u32 *) buf;
/* output ATA packet S/G table */
addr = PDC_20621_DIMM_BASE + PDC_20621_DIMM_DATA +
(PDC_DIMM_DATA_STEP * portno);
VPRINTK("ATA sg addr 0x%x, %d\n", addr, addr);
buf32[dw] = cpu_to_le32(addr);
buf32[dw + 1] = cpu_to_le32(total_len | ATA_PRD_EOT);
VPRINTK("ATA PSG @ %x == (0x%x, 0x%x)\n",
PDC_20621_DIMM_BASE +
(PDC_DIMM_WINDOW_STEP * portno) +
PDC_DIMM_APKT_PRD,
buf32[dw], buf32[dw + 1]);
}
static inline void pdc20621_host_sg(struct ata_taskfile *tf, u8 *buf,
unsigned int portno,
unsigned int total_len)
{
u32 addr;
unsigned int dw = PDC_DIMM_HPKT_PRD >> 2;
u32 *buf32 = (u32 *) buf;
/* output Host DMA packet S/G table */
addr = PDC_20621_DIMM_BASE + PDC_20621_DIMM_DATA +
(PDC_DIMM_DATA_STEP * portno);
buf32[dw] = cpu_to_le32(addr);
buf32[dw + 1] = cpu_to_le32(total_len | ATA_PRD_EOT);
VPRINTK("HOST PSG @ %x == (0x%x, 0x%x)\n",
PDC_20621_DIMM_BASE +
(PDC_DIMM_WINDOW_STEP * portno) +
PDC_DIMM_HPKT_PRD,
buf32[dw], buf32[dw + 1]);
}
static inline unsigned int pdc20621_ata_pkt(struct ata_taskfile *tf,
unsigned int devno, u8 *buf,
unsigned int portno)
{
unsigned int i, dw;
u32 *buf32 = (u32 *) buf;
u8 dev_reg;
unsigned int dimm_sg = PDC_20621_DIMM_BASE +
(PDC_DIMM_WINDOW_STEP * portno) +
PDC_DIMM_APKT_PRD;
VPRINTK("ENTER, dimm_sg == 0x%x, %d\n", dimm_sg, dimm_sg);
i = PDC_DIMM_ATA_PKT;
/*
* Set up ATA packet
*/
if ((tf->protocol == ATA_PROT_DMA) && (!(tf->flags & ATA_TFLAG_WRITE)))
buf[i++] = PDC_PKT_READ;
else if (tf->protocol == ATA_PROT_NODATA)
buf[i++] = PDC_PKT_NODATA;
else
buf[i++] = 0;
buf[i++] = 0; /* reserved */
buf[i++] = portno + 1; /* seq. id */
buf[i++] = 0xff; /* delay seq. id */
/* dimm dma S/G, and next-pkt */
dw = i >> 2;
buf32[dw] = cpu_to_le32(dimm_sg);
buf32[dw + 1] = 0;
i += 8;
if (devno == 0)
dev_reg = ATA_DEVICE_OBS;
else
dev_reg = ATA_DEVICE_OBS | ATA_DEV1;
/* select device */
buf[i++] = (1 << 5) | PDC_PKT_CLEAR_BSY | ATA_REG_DEVICE;
buf[i++] = dev_reg;
/* device control register */
buf[i++] = (1 << 5) | PDC_REG_DEVCTL;
buf[i++] = tf->ctl;
return i;
}
static inline void pdc20621_host_pkt(struct ata_taskfile *tf, u8 *buf,
unsigned int portno)
{
unsigned int dw;
u32 tmp, *buf32 = (u32 *) buf;
unsigned int host_sg = PDC_20621_DIMM_BASE +
(PDC_DIMM_WINDOW_STEP * portno) +
PDC_DIMM_HOST_PRD;
unsigned int dimm_sg = PDC_20621_DIMM_BASE +
(PDC_DIMM_WINDOW_STEP * portno) +
PDC_DIMM_HPKT_PRD;
VPRINTK("ENTER, dimm_sg == 0x%x, %d\n", dimm_sg, dimm_sg);
VPRINTK("host_sg == 0x%x, %d\n", host_sg, host_sg);
dw = PDC_DIMM_HOST_PKT >> 2;
/*
* Set up Host DMA packet
*/
if ((tf->protocol == ATA_PROT_DMA) && (!(tf->flags & ATA_TFLAG_WRITE)))
tmp = PDC_PKT_READ;
else
tmp = 0;
tmp |= ((portno + 1 + 4) << 16); /* seq. id */
tmp |= (0xff << 24); /* delay seq. id */
buf32[dw + 0] = cpu_to_le32(tmp);
buf32[dw + 1] = cpu_to_le32(host_sg);
buf32[dw + 2] = cpu_to_le32(dimm_sg);
buf32[dw + 3] = 0;
VPRINTK("HOST PKT @ %x == (0x%x 0x%x 0x%x 0x%x)\n",
PDC_20621_DIMM_BASE + (PDC_DIMM_WINDOW_STEP * portno) +
PDC_DIMM_HOST_PKT,
buf32[dw + 0],
buf32[dw + 1],
buf32[dw + 2],
buf32[dw + 3]);
}
static void pdc20621_fill_sg(struct ata_queued_cmd *qc)
{
struct scatterlist *sg = qc->sg;
struct ata_port *ap = qc->ap;
struct pdc_port_priv *pp = ap->private_data;
void *mmio = ap->host_set->mmio_base;
struct pdc_host_priv *hpriv = ap->host_set->private_data;
void *dimm_mmio = hpriv->dimm_mmio;
unsigned int portno = ap->port_no;
unsigned int i, last, idx, total_len = 0, sgt_len;
u32 *buf = (u32 *) &pp->dimm_buf[PDC_DIMM_HEADER_SZ];
VPRINTK("ata%u: ENTER\n", ap->id);
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
/*
* Build S/G table
*/
last = qc->n_elem;
idx = 0;
for (i = 0; i < last; i++) {
buf[idx++] = cpu_to_le32(sg_dma_address(&sg[i]));
buf[idx++] = cpu_to_le32(sg_dma_len(&sg[i]));
total_len += sg[i].length;
}
buf[idx - 1] |= cpu_to_le32(ATA_PRD_EOT);
sgt_len = idx * 4;
/*
* Build ATA, host DMA packets
*/
pdc20621_host_sg(&qc->tf, &pp->dimm_buf[0], portno, total_len);
pdc20621_host_pkt(&qc->tf, &pp->dimm_buf[0], portno);
pdc20621_ata_sg(&qc->tf, &pp->dimm_buf[0], portno, total_len);
i = pdc20621_ata_pkt(&qc->tf, qc->dev->devno, &pp->dimm_buf[0], portno);
if (qc->tf.flags & ATA_TFLAG_LBA48)
i = pdc_prep_lba48(&qc->tf, &pp->dimm_buf[0], i);
else
i = pdc_prep_lba28(&qc->tf, &pp->dimm_buf[0], i);
pdc_pkt_footer(&qc->tf, &pp->dimm_buf[0], i);
/* copy three S/G tables and two packets to DIMM MMIO window */
memcpy_toio(dimm_mmio + (portno * PDC_DIMM_WINDOW_STEP),
&pp->dimm_buf, PDC_DIMM_HEADER_SZ);
memcpy_toio(dimm_mmio + (portno * PDC_DIMM_WINDOW_STEP) +
PDC_DIMM_HOST_PRD,
&pp->dimm_buf[PDC_DIMM_HEADER_SZ], sgt_len);
/* force host FIFO dump */
writel(0x00000001, mmio + PDC_20621_GENERAL_CTL);
readl(dimm_mmio); /* MMIO PCI posting flush */
VPRINTK("ata pkt buf ofs %u, prd size %u, mmio copied\n", i, sgt_len);
}
static void __pdc20621_push_hdma(struct ata_queued_cmd *qc,
unsigned int seq,
u32 pkt_ofs)
{
struct ata_port *ap = qc->ap;
struct ata_host_set *host_set = ap->host_set;
void *mmio = host_set->mmio_base;
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
writel(0x00000001, mmio + PDC_20621_SEQCTL + (seq * 4));
readl(mmio + PDC_20621_SEQCTL + (seq * 4)); /* flush */
writel(pkt_ofs, mmio + PDC_HDMA_PKT_SUBMIT);
readl(mmio + PDC_HDMA_PKT_SUBMIT); /* flush */
}
static void pdc20621_push_hdma(struct ata_queued_cmd *qc,
unsigned int seq,
u32 pkt_ofs)
{
struct ata_port *ap = qc->ap;
struct pdc_host_priv *pp = ap->host_set->private_data;
unsigned int idx = pp->hdma_prod & PDC_HDMA_Q_MASK;
if (!pp->doing_hdma) {
__pdc20621_push_hdma(qc, seq, pkt_ofs);
pp->doing_hdma = 1;
return;
}
pp->hdma[idx].qc = qc;
pp->hdma[idx].seq = seq;
pp->hdma[idx].pkt_ofs = pkt_ofs;
pp->hdma_prod++;
}
static void pdc20621_pop_hdma(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct pdc_host_priv *pp = ap->host_set->private_data;
unsigned int idx = pp->hdma_cons & PDC_HDMA_Q_MASK;
/* if nothing on queue, we're done */
if (pp->hdma_prod == pp->hdma_cons) {
pp->doing_hdma = 0;
return;
}
__pdc20621_push_hdma(pp->hdma[idx].qc, pp->hdma[idx].seq,
pp->hdma[idx].pkt_ofs);
pp->hdma_cons++;
}
#ifdef ATA_VERBOSE_DEBUG
static void pdc20621_dump_hdma(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
unsigned int port_no = ap->port_no;
struct pdc_host_priv *hpriv = ap->host_set->private_data;
void *dimm_mmio = hpriv->dimm_mmio;
dimm_mmio += (port_no * PDC_DIMM_WINDOW_STEP);
dimm_mmio += PDC_DIMM_HOST_PKT;
printk(KERN_ERR "HDMA[0] == 0x%08X\n", readl(dimm_mmio));
printk(KERN_ERR "HDMA[1] == 0x%08X\n", readl(dimm_mmio + 4));
printk(KERN_ERR "HDMA[2] == 0x%08X\n", readl(dimm_mmio + 8));
printk(KERN_ERR "HDMA[3] == 0x%08X\n", readl(dimm_mmio + 12));
}
#else
static inline void pdc20621_dump_hdma(struct ata_queued_cmd *qc) { }
#endif /* ATA_VERBOSE_DEBUG */
static void pdc20621_dma_start(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ata_host_set *host_set = ap->host_set;
unsigned int port_no = ap->port_no;
void *mmio = host_set->mmio_base;
unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE);
u8 seq = (u8) (port_no + 1);
unsigned int doing_hdma = 0, port_ofs;
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
VPRINTK("ata%u: ENTER\n", ap->id);
port_ofs = PDC_20621_DIMM_BASE + (PDC_DIMM_WINDOW_STEP * port_no);
/* if writing, we (1) DMA to DIMM, then (2) do ATA command */
if (rw) {
doing_hdma = 1;
seq += 4;
}
wmb(); /* flush PRD, pkt writes */
if (doing_hdma) {
pdc20621_dump_hdma(qc);
pdc20621_push_hdma(qc, seq, port_ofs + PDC_DIMM_HOST_PKT);
VPRINTK("queued ofs 0x%x (%u), seq %u\n",
port_ofs + PDC_DIMM_HOST_PKT,
port_ofs + PDC_DIMM_HOST_PKT,
seq);
} else {
writel(0x00000001, mmio + PDC_20621_SEQCTL + (seq * 4));
readl(mmio + PDC_20621_SEQCTL + (seq * 4)); /* flush */
writel(port_ofs + PDC_DIMM_ATA_PKT,
(void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
readl((void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
VPRINTK("submitted ofs 0x%x (%u), seq %u\n",
port_ofs + PDC_DIMM_ATA_PKT,
port_ofs + PDC_DIMM_ATA_PKT,
seq);
}
}
static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
struct ata_queued_cmd *qc,
unsigned int doing_hdma,
void *mmio)
{
unsigned int port_no = ap->port_no;
unsigned int port_ofs =
PDC_20621_DIMM_BASE + (PDC_DIMM_WINDOW_STEP * port_no);
u8 status;
unsigned int handled = 0;
VPRINTK("ENTER\n");
if ((qc->tf.protocol == ATA_PROT_DMA) && /* read */
(!(qc->tf.flags & ATA_TFLAG_WRITE))) {
/* step two - DMA from DIMM to host */
if (doing_hdma) {
VPRINTK("ata%u: read hdma, 0x%x 0x%x\n", ap->id,
readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
pdc_dma_complete(ap, qc, 0);
pdc20621_pop_hdma(qc);
}
/* step one - exec ATA command */
else {
u8 seq = (u8) (port_no + 1 + 4);
VPRINTK("ata%u: read ata, 0x%x 0x%x\n", ap->id,
readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
/* submit hdma pkt */
pdc20621_dump_hdma(qc);
pdc20621_push_hdma(qc, seq,
port_ofs + PDC_DIMM_HOST_PKT);
}
handled = 1;
} else if (qc->tf.protocol == ATA_PROT_DMA) { /* write */
/* step one - DMA from host to DIMM */
if (doing_hdma) {
u8 seq = (u8) (port_no + 1);
VPRINTK("ata%u: write hdma, 0x%x 0x%x\n", ap->id,
readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
/* submit ata pkt */
writel(0x00000001, mmio + PDC_20621_SEQCTL + (seq * 4));
readl(mmio + PDC_20621_SEQCTL + (seq * 4));
writel(port_ofs + PDC_DIMM_ATA_PKT,
(void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
readl((void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
}
/* step two - execute ATA command */
else {
VPRINTK("ata%u: write ata, 0x%x 0x%x\n", ap->id,
readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
pdc_dma_complete(ap, qc, 0);
pdc20621_pop_hdma(qc);
}
handled = 1;
/* command completion, but no data xfer */
} else if (qc->tf.protocol == ATA_PROT_NODATA) {
status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
DPRINTK("BUS_NODATA (drv_stat 0x%X)\n", status);
ata_qc_complete(qc, status, 0);
handled = 1;
} else {
ap->stats.idle_irq++;
}
return handled;
}
static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance, struct pt_regs *regs)
{
struct ata_host_set *host_set = dev_instance;
struct ata_port *ap;
u32 mask = 0;
unsigned int i, tmp, port_no;
unsigned int handled = 0;
void *mmio_base;
VPRINTK("ENTER\n");
if (!host_set || !host_set->mmio_base) {
VPRINTK("QUICK EXIT\n");
return IRQ_NONE;
}
mmio_base = host_set->mmio_base;
/* reading should also clear interrupts */
mmio_base += PDC_CHIP0_OFS;
mask = readl(mmio_base + PDC_20621_SEQMASK);
VPRINTK("mask == 0x%x\n", mask);
if (mask == 0xffffffff) {
VPRINTK("QUICK EXIT 2\n");
return IRQ_NONE;
}
mask &= 0xffff; /* only 16 tags possible */
if (!mask) {
VPRINTK("QUICK EXIT 3\n");
return IRQ_NONE;
}
spin_lock(&host_set->lock);
for (i = 1; i < 9; i++) {
port_no = i - 1;
if (port_no > 3)
port_no -= 4;
if (port_no >= host_set->n_ports)
ap = NULL;
else
ap = host_set->ports[port_no];
tmp = mask & (1 << i);
VPRINTK("seq %u, port_no %u, ap %p, tmp %x\n", i, port_no, ap, tmp);
if (tmp && ap && (!(ap->flags & ATA_FLAG_PORT_DISABLED))) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
if (qc && ((qc->flags & ATA_QCFLAG_POLL) == 0))
handled += pdc20621_host_intr(ap, qc, (i > 4),
mmio_base);
}
}
spin_unlock(&host_set->lock);
VPRINTK("mask == 0x%x\n", mask);
VPRINTK("EXIT\n");
return IRQ_RETVAL(handled);
}
static void pdc_fill_sg(struct ata_queued_cmd *qc)
{
struct pdc_port_priv *pp = qc->ap->private_data;
......@@ -1210,456 +600,11 @@ static void pdc_sata_setup_port(struct ata_ioports *port, unsigned long base)
}
#ifdef ATA_VERBOSE_DEBUG
static void pdc20621_get_from_dimm(struct ata_probe_ent *pe, void *psource,
u32 offset, u32 size)
{
u32 window_size;
u16 idx;
u8 page_mask;
long dist;
void *mmio = pe->mmio_base;
struct pdc_host_priv *hpriv = pe->private_data;
void *dimm_mmio = hpriv->dimm_mmio;
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
page_mask = 0x00;
window_size = 0x2000 * 4; /* 32K byte uchar size */
idx = (u16) (offset / window_size);
writel(0x01, mmio + PDC_GENERAL_CTLR);
readl(mmio + PDC_GENERAL_CTLR);
writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
readl(mmio + PDC_DIMM_WINDOW_CTLR);
offset -= (idx * window_size);
idx++;
dist = ((long) (window_size - (offset + size))) >= 0 ? size :
(long) (window_size - offset);
memcpy_fromio((char *) psource, (char *) (dimm_mmio + offset / 4),
dist);
psource += dist;
size -= dist;
for (; (long) size >= (long) window_size ;) {
writel(0x01, mmio + PDC_GENERAL_CTLR);
readl(mmio + PDC_GENERAL_CTLR);
writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
readl(mmio + PDC_DIMM_WINDOW_CTLR);
memcpy_fromio((char *) psource, (char *) (dimm_mmio),
window_size / 4);
psource += window_size;
size -= window_size;
idx ++;
}
if (size) {
writel(0x01, mmio + PDC_GENERAL_CTLR);
readl(mmio + PDC_GENERAL_CTLR);
writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
readl(mmio + PDC_DIMM_WINDOW_CTLR);
memcpy_fromio((char *) psource, (char *) (dimm_mmio),
size / 4);
}
}
#endif
static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource,
u32 offset, u32 size)
{
u32 window_size;
u16 idx;
u8 page_mask;
long dist;
void *mmio = pe->mmio_base;
struct pdc_host_priv *hpriv = pe->private_data;
void *dimm_mmio = hpriv->dimm_mmio;
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
page_mask = 0x00;
window_size = 0x2000 * 4; /* 32K byte uchar size */
idx = (u16) (offset / window_size);
writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
readl(mmio + PDC_DIMM_WINDOW_CTLR);
offset -= (idx * window_size);
idx++;
dist = ((long) (window_size - (offset + size))) >= 0 ? size :
(long) (window_size - offset);
memcpy_toio((char *) (dimm_mmio + offset / 4), (char *) psource, dist);
writel(0x01, mmio + PDC_GENERAL_CTLR);
readl(mmio + PDC_GENERAL_CTLR);
psource += dist;
size -= dist;
for (; (long) size >= (long) window_size ;) {
writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
readl(mmio + PDC_DIMM_WINDOW_CTLR);
memcpy_toio((char *) (dimm_mmio), (char *) psource,
window_size / 4);
writel(0x01, mmio + PDC_GENERAL_CTLR);
readl(mmio + PDC_GENERAL_CTLR);
psource += window_size;
size -= window_size;
idx ++;
}
if (size) {
writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
readl(mmio + PDC_DIMM_WINDOW_CTLR);
memcpy_toio((char *) (dimm_mmio), (char *) psource, size / 4);
writel(0x01, mmio + PDC_GENERAL_CTLR);
readl(mmio + PDC_GENERAL_CTLR);
}
}
static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe, u32 device,
u32 subaddr, u32 *pdata)
{
void *mmio = pe->mmio_base;
u32 i2creg = 0;
u32 status;
u32 count =0;
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
i2creg |= device << 24;
i2creg |= subaddr << 16;
/* Set the device and subaddress */
writel(i2creg, mmio + PDC_I2C_ADDR_DATA_OFFSET);
readl(mmio + PDC_I2C_ADDR_DATA_OFFSET);
/* Write Control to perform read operation, mask int */
writel(PDC_I2C_READ | PDC_I2C_START | PDC_I2C_MASK_INT,
mmio + PDC_I2C_CONTROL_OFFSET);
for (count = 0; count <= 1000; count ++) {
status = readl(mmio + PDC_I2C_CONTROL_OFFSET);
if (status & PDC_I2C_COMPLETE) {
status = readl(mmio + PDC_I2C_ADDR_DATA_OFFSET);
break;
} else if (count == 1000)
return 0;
}
*pdata = (status >> 8) & 0x000000ff;
return 1;
}
static int pdc20621_detect_dimm(struct ata_probe_ent *pe)
{
u32 data=0 ;
if (pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS,
PDC_DIMM_SPD_SYSTEM_FREQ, &data)) {
if (data == 100)
return 100;
} else
return 0;
if (pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS, 9, &data)) {
if(data <= 0x75)
return 133;
} else
return 0;
return 0;
}
static int pdc20621_prog_dimm0(struct ata_probe_ent *pe)
{
u32 spd0[50];
u32 data = 0;
int size, i;
u8 bdimmsize;
void *mmio = pe->mmio_base;
static const struct {
unsigned int reg;
unsigned int ofs;
} pdc_i2c_read_data [] = {
{ PDC_DIMM_SPD_TYPE, 11 },
{ PDC_DIMM_SPD_FRESH_RATE, 12 },
{ PDC_DIMM_SPD_COLUMN_NUM, 4 },
{ PDC_DIMM_SPD_ATTRIBUTE, 21 },
{ PDC_DIMM_SPD_ROW_NUM, 3 },
{ PDC_DIMM_SPD_BANK_NUM, 17 },
{ PDC_DIMM_SPD_MODULE_ROW, 5 },
{ PDC_DIMM_SPD_ROW_PRE_CHARGE, 27 },
{ PDC_DIMM_SPD_ROW_ACTIVE_DELAY, 28 },
{ PDC_DIMM_SPD_RAS_CAS_DELAY, 29 },
{ PDC_DIMM_SPD_ACTIVE_PRECHARGE, 30 },
{ PDC_DIMM_SPD_CAS_LATENCY, 18 },
};
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
for(i=0; i<ARRAY_SIZE(pdc_i2c_read_data); i++)
pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS,
pdc_i2c_read_data[i].reg,
&spd0[pdc_i2c_read_data[i].ofs]);
data |= (spd0[4] - 8) | ((spd0[21] != 0) << 3) | ((spd0[3]-11) << 4);
data |= ((spd0[17] / 4) << 6) | ((spd0[5] / 2) << 7) |
((((spd0[27] + 9) / 10) - 1) << 8) ;
data |= (((((spd0[29] > spd0[28])
? spd0[29] : spd0[28]) + 9) / 10) - 1) << 10;
data |= ((spd0[30] - spd0[29] + 9) / 10 - 2) << 12;
if (spd0[18] & 0x08)
data |= ((0x03) << 14);
else if (spd0[18] & 0x04)
data |= ((0x02) << 14);
else if (spd0[18] & 0x01)
data |= ((0x01) << 14);
else
data |= (0 << 14);
/*
Calculate the size of bDIMMSize (power of 2) and
merge the DIMM size by program start/end address.
*/
bdimmsize = spd0[4] + (spd0[5] / 2) + spd0[3] + (spd0[17] / 2) + 3;
size = (1 << bdimmsize) >> 20; /* size = xxx(MB) */
data |= (((size / 16) - 1) << 16);
data |= (0 << 23);
data |= 8;
writel(data, mmio + PDC_DIMM0_CONTROL_OFFSET);
readl(mmio + PDC_DIMM0_CONTROL_OFFSET);
return size;
}
static unsigned int pdc20621_prog_dimm_global(struct ata_probe_ent *pe)
{
u32 data, spd0;
int error, i;
void *mmio = pe->mmio_base;
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
/*
Set To Default : DIMM Module Global Control Register (0x022259F1)
DIMM Arbitration Disable (bit 20)
DIMM Data/Control Output Driving Selection (bit12 - bit15)
Refresh Enable (bit 17)
*/
data = 0x022259F1;
writel(data, mmio + PDC_SDRAM_CONTROL_OFFSET);
readl(mmio + PDC_SDRAM_CONTROL_OFFSET);
/* Turn on for ECC */
pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS,
PDC_DIMM_SPD_TYPE, &spd0);
if (spd0 == 0x02) {
data |= (0x01 << 16);
writel(data, mmio + PDC_SDRAM_CONTROL_OFFSET);
readl(mmio + PDC_SDRAM_CONTROL_OFFSET);
printk(KERN_ERR "Local DIMM ECC Enabled\n");
}
/* DIMM Initialization Select/Enable (bit 18/19) */
data &= (~(1<<18));
data |= (1<<19);
writel(data, mmio + PDC_SDRAM_CONTROL_OFFSET);
error = 1;
for (i = 1; i <= 10; i++) { /* polling ~5 secs */
data = readl(mmio + PDC_SDRAM_CONTROL_OFFSET);
if (!(data & (1<<19))) {
error = 0;
break;
}
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout((i * 100) * HZ / 1000);
}
return error;
}
static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe)
{
int speed, size, length;
u32 addr,spd0,pci_status;
u32 tmp=0;
u32 time_period=0;
u32 tcount=0;
u32 ticks=0;
u32 clock=0;
u32 fparam=0;
void *mmio = pe->mmio_base;
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
/* Initialize PLL based upon PCI Bus Frequency */
/* Initialize Time Period Register */
writel(0xffffffff, mmio + PDC_TIME_PERIOD);
time_period = readl(mmio + PDC_TIME_PERIOD);
VPRINTK("Time Period Register (0x40): 0x%x\n", time_period);
/* Enable timer */
writel(0x00001a0, mmio + PDC_TIME_CONTROL);
readl(mmio + PDC_TIME_CONTROL);
/* Wait 3 seconds */
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(3 * HZ);
/*
When timer is enabled, counter is decreased every internal
clock cycle.
*/
tcount = readl(mmio + PDC_TIME_COUNTER);
VPRINTK("Time Counter Register (0x44): 0x%x\n", tcount);
/*
If SX4 is on PCI-X bus, after 3 seconds, the timer counter
register should be >= (0xffffffff - 3x10^8).
*/
if(tcount >= PCI_X_TCOUNT) {
ticks = (time_period - tcount);
VPRINTK("Num counters 0x%x (%d)\n", ticks, ticks);
clock = (ticks / 300000);
VPRINTK("10 * Internal clk = 0x%x (%d)\n", clock, clock);
clock = (clock * 33);
VPRINTK("10 * Internal clk * 33 = 0x%x (%d)\n", clock, clock);
/* PLL F Param (bit 22:16) */
fparam = (1400000 / clock) - 2;
VPRINTK("PLL F Param: 0x%x (%d)\n", fparam, fparam);
/* OD param = 0x2 (bit 31:30), R param = 0x5 (bit 29:25) */
pci_status = (0x8a001824 | (fparam << 16));
} else
pci_status = PCI_PLL_INIT;
/* Initialize PLL. */
VPRINTK("pci_status: 0x%x\n", pci_status);
writel(pci_status, mmio + PDC_CTL_STATUS);
readl(mmio + PDC_CTL_STATUS);
/*
Read SPD of DIMM by I2C interface,
and program the DIMM Module Controller.
*/
if (!(speed = pdc20621_detect_dimm(pe))) {
printk(KERN_ERR "Detect Local DIMM Fail\n");
return 1; /* DIMM error */
}
VPRINTK("Local DIMM Speed = %d\n", speed);
/* Programming DIMM0 Module Control Register (index_CID0:80h) */
size = pdc20621_prog_dimm0(pe);
VPRINTK("Local DIMM Size = %dMB\n",size);
/* Programming DIMM Module Global Control Register (index_CID0:88h) */
if (pdc20621_prog_dimm_global(pe)) {
printk(KERN_ERR "Programming DIMM Module Global Control Register Fail\n");
return 1;
}
#ifdef ATA_VERBOSE_DEBUG
{
u8 test_parttern1[40] = {0x55,0xAA,'P','r','o','m','i','s','e',' ',
'N','o','t',' ','Y','e','t',' ','D','e','f','i','n','e','d',' ',
'1','.','1','0',
'9','8','0','3','1','6','1','2',0,0};
u8 test_parttern2[40] = {0};
pdc20621_put_to_dimm(pe, (void *) test_parttern2, 0x10040, 40);
pdc20621_put_to_dimm(pe, (void *) test_parttern2, 0x40, 40);
pdc20621_put_to_dimm(pe, (void *) test_parttern1, 0x10040, 40);
pdc20621_get_from_dimm(pe, (void *) test_parttern2, 0x40, 40);
printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0],
test_parttern2[1], &(test_parttern2[2]));
pdc20621_get_from_dimm(pe, (void *) test_parttern2, 0x10040,
40);
printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0],
test_parttern2[1], &(test_parttern2[2]));
pdc20621_put_to_dimm(pe, (void *) test_parttern1, 0x40, 40);
pdc20621_get_from_dimm(pe, (void *) test_parttern2, 0x40, 40);
printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0],
test_parttern2[1], &(test_parttern2[2]));
}
#endif
/* ECC initiliazation. */
pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS,
PDC_DIMM_SPD_TYPE, &spd0);
if (spd0 == 0x02) {
VPRINTK("Start ECC initialization\n");
addr = 0;
length = size * 1024 * 1024;
while (addr < length) {
pdc20621_put_to_dimm(pe, (void *) &tmp, addr,
sizeof(u32));
addr += sizeof(u32);
}
VPRINTK("Finish ECC initialization\n");
}
return 0;
}
static void pdc_20621_init(struct ata_probe_ent *pe)
{
u32 tmp;
void *mmio = pe->mmio_base;
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
/*
* Select page 0x40 for our 32k DIMM window
*/
tmp = readl(mmio + PDC_20621_DIMM_WINDOW) & 0xffff0000;
tmp |= PDC_PAGE_WINDOW; /* page 40h; arbitrarily selected */
writel(tmp, mmio + PDC_20621_DIMM_WINDOW);
/*
* Reset Host DMA
*/
tmp = readl(mmio + PDC_HDMA_CTLSTAT);
tmp |= PDC_RESET;
writel(tmp, mmio + PDC_HDMA_CTLSTAT);
readl(mmio + PDC_HDMA_CTLSTAT); /* flush */
udelay(10);
tmp = readl(mmio + PDC_HDMA_CTLSTAT);
tmp &= ~PDC_RESET;
writel(tmp, mmio + PDC_HDMA_CTLSTAT);
readl(mmio + PDC_HDMA_CTLSTAT); /* flush */
}
static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
{
void *mmio = pe->mmio_base;
u32 tmp;
if (chip_id == board_20621)
BUG();
/*
* Except for the hotplug stuff, this is voodoo from the
* Promise driver. Label this entire section
......@@ -1701,10 +646,8 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
static int printed_version;
struct ata_probe_ent *probe_ent = NULL;
unsigned long base;
void *mmio_base, *dimm_mmio = NULL;
struct pdc_host_priv *hpriv = NULL;
void *mmio_base;
unsigned int board_idx = (unsigned int) ent->driver_data;
unsigned int have_20621 = (board_idx == board_20621);
int rc;
if (!printed_version++)
......@@ -1747,25 +690,6 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
}
base = (unsigned long) mmio_base;
if (have_20621) {
hpriv = kmalloc(sizeof(*hpriv), GFP_KERNEL);
if (!hpriv) {
rc = -ENOMEM;
goto err_out_iounmap;
}
memset(hpriv, 0, sizeof(*hpriv));
dimm_mmio = ioremap(pci_resource_start(pdev, 4),
pci_resource_len(pdev, 4));
if (!dimm_mmio) {
kfree(hpriv);
rc = -ENOMEM;
goto err_out_iounmap;
}
hpriv->dimm_mmio = dimm_mmio;
}
probe_ent->sht = pdc_port_info[board_idx].sht;
probe_ent->host_flags = pdc_port_info[board_idx].host_flags;
probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask;
......@@ -1776,32 +700,22 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
probe_ent->irq_flags = SA_SHIRQ;
probe_ent->mmio_base = mmio_base;
if (have_20621) {
probe_ent->private_data = hpriv;
base += PDC_CHIP0_OFS;
}
pdc_sata_setup_port(&probe_ent->port[0], base + 0x200);
pdc_sata_setup_port(&probe_ent->port[1], base + 0x280);
if (!have_20621) {
probe_ent->port[0].scr_addr = base + 0x400;
probe_ent->port[1].scr_addr = base + 0x500;
}
probe_ent->port[0].scr_addr = base + 0x400;
probe_ent->port[1].scr_addr = base + 0x500;
/* notice 4-port boards */
switch (board_idx) {
case board_20319:
case board_20621:
probe_ent->n_ports = 4;
pdc_sata_setup_port(&probe_ent->port[2], base + 0x300);
pdc_sata_setup_port(&probe_ent->port[3], base + 0x380);
if (!have_20621) {
probe_ent->port[2].scr_addr = base + 0x600;
probe_ent->port[3].scr_addr = base + 0x700;
}
probe_ent->port[2].scr_addr = base + 0x600;
probe_ent->port[3].scr_addr = base + 0x700;
break;
case board_2037x:
probe_ent->n_ports = 2;
......@@ -1814,15 +728,7 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
pci_set_master(pdev);
/* initialize adapter */
if (have_20621) {
/* initialize local dimm */
if (pdc20621_dimm_init(probe_ent)) {
rc = -ENOMEM;
goto err_out_iounmap_dimm;
}
pdc_20621_init(probe_ent);
} else
pdc_host_init(board_idx, probe_ent);
pdc_host_init(board_idx, probe_ent);
/* FIXME: check ata_device_add return value */
ata_device_add(probe_ent);
......@@ -1830,11 +736,6 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
return 0;
err_out_iounmap_dimm: /* only get to this label if 20621 */
kfree(hpriv);
iounmap(dimm_mmio);
err_out_iounmap:
iounmap(mmio_base);
err_out_free_ent:
kfree(probe_ent);
err_out_regions:
......@@ -1858,7 +759,7 @@ static void __exit pdc_sata_exit(void)
MODULE_AUTHOR("Jeff Garzik");
MODULE_DESCRIPTION("Promise SATA low-level driver");
MODULE_DESCRIPTION("Promise SATA TX2/TX4 low-level driver");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, pdc_sata_pci_tbl);
......
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