[libata sata_promise] add correct read/write of hotplug registers for SATAII devices
This patch adds support for correctly masking out and knowing about
hotplug events on Promise SATAII150 Tx4/Tx2 Plus controllers.
Also, a kmalloc->kzalloc cleanup.
Signed-off-by: Luke Kosewski <lkosewsk@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 77ef646b..0950a8e 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -46,7 +46,7 @@
#include "sata_promise.h"
#define DRV_NAME "sata_promise"
-#define DRV_VERSION "1.03"
+#define DRV_VERSION "1.04"
enum {
@@ -58,6 +58,7 @@
PDC_GLOBAL_CTL = 0x48, /* Global control/status (per port) */
PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */
PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */
+ PDC2_SATA_PLUG_CSR = 0x60, /* SATAII Plug control/status reg */
PDC_SLEW_CTL = 0x470, /* slew rate control reg */
PDC_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) |
@@ -67,8 +68,10 @@
board_20319 = 1, /* FastTrak S150 TX4 */
board_20619 = 2, /* FastTrak TX4000 */
board_20771 = 3, /* FastTrak TX2300 */
+ board_2057x = 4, /* SATAII150 Tx2plus */
+ board_40518 = 5, /* SATAII150 Tx4 */
- PDC_HAS_PATA = (1 << 1), /* PDC20375 has PATA */
+ PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */
PDC_RESET = (1 << 11), /* HDMA reset */
@@ -82,6 +85,10 @@
dma_addr_t pkt_dma;
};
+struct pdc_host_priv {
+ int hotplug_offset;
+};
+
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_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
@@ -96,6 +103,7 @@
static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
static void pdc_irq_clear(struct ata_port *ap);
static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc);
+static void pdc_host_stop(struct ata_host_set *host_set);
static struct scsi_host_template pdc_ata_sht = {
@@ -137,7 +145,7 @@
.scr_write = pdc_sata_scr_write,
.port_start = pdc_port_start,
.port_stop = pdc_port_stop,
- .host_stop = ata_pci_host_stop,
+ .host_stop = pdc_host_stop,
};
static const struct ata_port_operations pdc_pata_ops = {
@@ -158,7 +166,7 @@
.port_start = pdc_port_start,
.port_stop = pdc_port_stop,
- .host_stop = ata_pci_host_stop,
+ .host_stop = pdc_host_stop,
};
static const struct ata_port_info pdc_port_info[] = {
@@ -201,6 +209,26 @@
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_sata_ops,
},
+
+ /* board_2057x */
+ {
+ .sht = &pdc_ata_sht,
+ .host_flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma0-2 */
+ .udma_mask = 0x7f, /* udma0-6 ; FIXME */
+ .port_ops = &pdc_sata_ops,
+ },
+
+ /* board_40518 */
+ {
+ .sht = &pdc_ata_sht,
+ .host_flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma0-2 */
+ .udma_mask = 0x7f, /* udma0-6 ; FIXME */
+ .port_ops = &pdc_sata_ops,
+ },
};
static const struct pci_device_id pdc_ata_pci_tbl[] = {
@@ -217,9 +245,9 @@
{ PCI_VENDOR_ID_PROMISE, 0x3376, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_2037x },
{ PCI_VENDOR_ID_PROMISE, 0x3574, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- board_2037x },
+ board_2057x },
{ PCI_VENDOR_ID_PROMISE, 0x3d75, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- board_2037x },
+ board_2057x },
{ PCI_VENDOR_ID_PROMISE, 0x3d73, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_2037x },
@@ -232,7 +260,7 @@
{ PCI_VENDOR_ID_PROMISE, 0x3d17, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_20319 },
{ PCI_VENDOR_ID_PROMISE, 0x3d18, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- board_20319 },
+ board_40518 },
{ PCI_VENDOR_ID_PROMISE, 0x6629, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_20619 },
@@ -261,12 +289,11 @@
if (rc)
return rc;
- pp = kmalloc(sizeof(*pp), GFP_KERNEL);
+ pp = kzalloc(sizeof(*pp), GFP_KERNEL);
if (!pp) {
rc = -ENOMEM;
goto err_out;
}
- memset(pp, 0, sizeof(*pp));
pp->pkt = dma_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL);
if (!pp->pkt) {
@@ -298,6 +325,16 @@
}
+static void pdc_host_stop(struct ata_host_set *host_set)
+{
+ struct pdc_host_priv *hp = host_set->private_data;
+
+ ata_pci_host_stop(host_set);
+
+ kfree(hp);
+}
+
+
static void pdc_reset_port(struct ata_port *ap)
{
void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT;
@@ -487,14 +524,15 @@
VPRINTK("QUICK EXIT 2\n");
return IRQ_NONE;
}
+
+ spin_lock(&host_set->lock);
+
mask &= 0xffff; /* only 16 tags possible */
if (!mask) {
VPRINTK("QUICK EXIT 3\n");
- return IRQ_NONE;
+ goto done_irq;
}
- spin_lock(&host_set->lock);
-
writel(mask, mmio_base + PDC_INT_SEQMASK);
for (i = 0; i < host_set->n_ports; i++) {
@@ -511,10 +549,10 @@
}
}
- spin_unlock(&host_set->lock);
-
VPRINTK("EXIT\n");
+done_irq:
+ spin_unlock(&host_set->lock);
return IRQ_RETVAL(handled);
}
@@ -592,6 +630,8 @@
static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
{
void __iomem *mmio = pe->mmio_base;
+ struct pdc_host_priv *hp = pe->private_data;
+ int hotplug_offset = hp->hotplug_offset;
u32 tmp;
/*
@@ -606,12 +646,12 @@
writel(tmp, mmio + PDC_FLASH_CTL);
/* clear plug/unplug flags for all ports */
- tmp = readl(mmio + PDC_SATA_PLUG_CSR);
- writel(tmp | 0xff, mmio + PDC_SATA_PLUG_CSR);
+ tmp = readl(mmio + hotplug_offset);
+ writel(tmp | 0xff, mmio + hotplug_offset);
/* mask plug/unplug ints */
- tmp = readl(mmio + PDC_SATA_PLUG_CSR);
- writel(tmp | 0xff0000, mmio + PDC_SATA_PLUG_CSR);
+ tmp = readl(mmio + hotplug_offset);
+ writel(tmp | 0xff0000, mmio + hotplug_offset);
/* reduce TBG clock to 133 Mhz. */
tmp = readl(mmio + PDC_TBG_MODE);
@@ -633,6 +673,7 @@
{
static int printed_version;
struct ata_probe_ent *probe_ent = NULL;
+ struct pdc_host_priv *hp;
unsigned long base;
void __iomem *mmio_base;
unsigned int board_idx = (unsigned int) ent->driver_data;
@@ -663,13 +704,12 @@
if (rc)
goto err_out_regions;
- probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
+ probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
if (probe_ent == NULL) {
rc = -ENOMEM;
goto err_out_regions;
}
- memset(probe_ent, 0, sizeof(*probe_ent));
probe_ent->dev = pci_dev_to_dev(pdev);
INIT_LIST_HEAD(&probe_ent->node);
@@ -680,6 +720,16 @@
}
base = (unsigned long) mmio_base;
+ hp = kzalloc(sizeof(*hp), GFP_KERNEL);
+ if (hp == NULL) {
+ rc = -ENOMEM;
+ goto err_out_free_ent;
+ }
+
+ /* Set default hotplug offset */
+ hp->hotplug_offset = PDC_SATA_PLUG_CSR;
+ probe_ent->private_data = hp;
+
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;
@@ -699,6 +749,10 @@
/* notice 4-port boards */
switch (board_idx) {
+ case board_40518:
+ /* Override hotplug offset for SATAII150 */
+ hp->hotplug_offset = PDC2_SATA_PLUG_CSR;
+ /* Fall through */
case board_20319:
probe_ent->n_ports = 4;
@@ -708,6 +762,10 @@
probe_ent->port[2].scr_addr = base + 0x600;
probe_ent->port[3].scr_addr = base + 0x700;
break;
+ case board_2057x:
+ /* Override hotplug offset for SATAII150 */
+ hp->hotplug_offset = PDC2_SATA_PLUG_CSR;
+ /* Fall through */
case board_2037x:
probe_ent->n_ports = 2;
break;
@@ -733,8 +791,10 @@
/* initialize adapter */
pdc_host_init(board_idx, probe_ent);
- /* FIXME: check ata_device_add return value */
- ata_device_add(probe_ent);
+ /* FIXME: Need any other frees than hp? */
+ if (!ata_device_add(probe_ent))
+ kfree(hp);
+
kfree(probe_ent);
return 0;