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path: root/drivers/scsi/sata_sis.c
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Diffstat (limited to 'drivers/scsi/sata_sis.c')
-rw-r--r--drivers/scsi/sata_sis.c131
1 files changed, 93 insertions, 38 deletions
diff --git a/drivers/scsi/sata_sis.c b/drivers/scsi/sata_sis.c
index e418b89c6b9d..a63f93186e41 100644
--- a/drivers/scsi/sata_sis.c
+++ b/drivers/scsi/sata_sis.c
@@ -7,21 +7,26 @@
*
* Copyright 2004 Uwe Koziolek
*
- * The contents of this file are subject to the Open
- * Software License version 1.1 that can be found at
- * http://www.opensource.org/licenses/osl-1.1.txt and is included herein
- * by reference.
*
- * Alternatively, the contents of this file may be used under the terms
- * of the GNU General Public License version 2 (the "GPL") as distributed
- * in the kernel source COPYING file, in which case the provisions of
- * the GPL are applicable instead of the above. If you wish to allow
- * the use of your version of this file only under the terms of the
- * GPL and not to allow others to use your version of this file under
- * the OSL, indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by the GPL.
- * If you do not delete the provisions above, a recipient may use your
- * version of this file under either the OSL or the GPL.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * libata documentation is available via 'make {ps|pdf}docs',
+ * as Documentation/DocBook/libata.*
+ *
+ * Hardware documentation available under NDA.
*
*/
@@ -47,7 +52,10 @@ enum {
/* PCI configuration registers */
SIS_GENCTL = 0x54, /* IDE General Control register */
SIS_SCR_BASE = 0xc0, /* sata0 phy SCR registers */
- SIS_SATA1_OFS = 0x10, /* offset from sata0->sata1 phy regs */
+ SIS180_SATA1_OFS = 0x10, /* offset from sata0->sata1 phy regs */
+ SIS182_SATA1_OFS = 0x20, /* offset from sata0->sata1 phy regs */
+ SIS_PMR = 0x90, /* port mapping register */
+ SIS_PMR_COMBINED = 0x30,
/* random bits */
SIS_FLAG_CFGSCR = (1 << 30), /* host flag: SCRs via PCI cfg */
@@ -62,6 +70,7 @@ static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
static struct pci_device_id sis_pci_tbl[] = {
{ PCI_VENDOR_ID_SI, 0x180, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sis_180 },
{ PCI_VENDOR_ID_SI, 0x181, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sis_180 },
+ { PCI_VENDOR_ID_SI, 0x182, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sis_180 },
{ } /* terminate list */
};
@@ -134,67 +143,95 @@ MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, sis_pci_tbl);
MODULE_VERSION(DRV_VERSION);
-static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg)
+static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg, int device)
{
unsigned int addr = SIS_SCR_BASE + (4 * sc_reg);
- if (port_no)
- addr += SIS_SATA1_OFS;
+ if (port_no) {
+ if (device == 0x182)
+ addr += SIS182_SATA1_OFS;
+ else
+ addr += SIS180_SATA1_OFS;
+ }
+
return addr;
}
static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
{
struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
- unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, sc_reg);
- u32 val;
+ unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, sc_reg, pdev->device);
+ u32 val, val2;
+ u8 pmr;
if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */
return 0xffffffff;
+
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+
pci_read_config_dword(pdev, cfg_addr, &val);
- return val;
+
+ if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+ pci_read_config_dword(pdev, cfg_addr+0x10, &val2);
+
+ return val|val2;
}
static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
{
struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
- unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, scr);
+ unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, scr, pdev->device);
+ u8 pmr;
if (scr == SCR_ERROR) /* doesn't exist in PCI cfg space */
return;
+
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+
pci_write_config_dword(pdev, cfg_addr, val);
+
+ if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+ pci_write_config_dword(pdev, cfg_addr+0x10, val);
}
static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
+ struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
+ u32 val, val2 = 0;
+ u8 pmr;
+
if (sc_reg > SCR_CONTROL)
return 0xffffffffU;
if (ap->flags & SIS_FLAG_CFGSCR)
return sis_scr_cfg_read(ap, sc_reg);
- return inl(ap->ioaddr.scr_addr + (sc_reg * 4));
+
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+
+ val = inl(ap->ioaddr.scr_addr + (sc_reg * 4));
+
+ if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+ val2 = inl(ap->ioaddr.scr_addr + (sc_reg * 4) + 0x10);
+
+ return val | val2;
}
static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
{
+ struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
+ u8 pmr;
+
if (sc_reg > SCR_CONTROL)
return;
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+
if (ap->flags & SIS_FLAG_CFGSCR)
sis_scr_cfg_write(ap, sc_reg, val);
- else
+ else {
outl(val, ap->ioaddr.scr_addr + (sc_reg * 4));
-}
-
-/* move to PCI layer, integrate w/ MSI stuff */
-static void pci_enable_intx(struct pci_dev *pdev)
-{
- u16 pci_command;
-
- pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
- if (pci_command & PCI_COMMAND_INTX_DISABLE) {
- pci_command &= ~PCI_COMMAND_INTX_DISABLE;
- pci_write_config_word(pdev, PCI_COMMAND, pci_command);
+ if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+ outl(val, ap->ioaddr.scr_addr + (sc_reg * 4)+0x10);
}
}
@@ -205,6 +242,8 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
u32 genctl;
struct ata_port_info *ppi;
int pci_dev_busy = 0;
+ u8 pmr;
+ u8 port2_start;
rc = pci_enable_device(pdev);
if (rc)
@@ -234,7 +273,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
pci_read_config_dword(pdev, SIS_GENCTL, &genctl);
if ((genctl & GENCTL_IOMAPPED_SCR) == 0)
probe_ent->host_flags |= SIS_FLAG_CFGSCR;
-
+
/* if hardware thinks SCRs are in IO space, but there are
* no IO resources assigned, change to PCI cfg space.
*/
@@ -246,15 +285,31 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
probe_ent->host_flags |= SIS_FLAG_CFGSCR;
}
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+ if (ent->device != 0x182) {
+ if ((pmr & SIS_PMR_COMBINED) == 0) {
+ printk(KERN_INFO "sata_sis: Detected SiS 180/181 chipset in SATA mode\n");
+ port2_start=0x64;
+ }
+ else {
+ printk(KERN_INFO "sata_sis: Detected SiS 180/181 chipset in combined mode\n");
+ port2_start=0;
+ }
+ }
+ else {
+ printk(KERN_INFO "sata_sis: Detected SiS 182 chipset\n");
+ port2_start = 0x20;
+ }
+
if (!(probe_ent->host_flags & SIS_FLAG_CFGSCR)) {
probe_ent->port[0].scr_addr =
pci_resource_start(pdev, SIS_SCR_PCI_BAR);
probe_ent->port[1].scr_addr =
- pci_resource_start(pdev, SIS_SCR_PCI_BAR) + 64;
+ pci_resource_start(pdev, SIS_SCR_PCI_BAR) + port2_start;
}
pci_set_master(pdev);
- pci_enable_intx(pdev);
+ pci_intx(pdev, 1);
/* FIXME: check ata_device_add return value */
ata_device_add(probe_ent);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-17 23:00:01 +0300