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Commit 1b11d78c authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'upstream' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev

parents 8920e8f9 6a690df5
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+6 −4
Original line number Diff line number Diff line
@@ -68,8 +68,8 @@ enum {
	PIIX_COMB_PATA_P0	= (1 << 1),
	PIIX_COMB		= (1 << 2), /* combined mode enabled? */

	PIIX_PORT_PRESENT	= (1 << 0),
	PIIX_PORT_ENABLED	= (1 << 4),
	PIIX_PORT_ENABLED	= (1 << 0),
	PIIX_PORT_PRESENT	= (1 << 4),

	PIIX_80C_PRI		= (1 << 5) | (1 << 4),
	PIIX_80C_SEC		= (1 << 7) | (1 << 6),
@@ -377,7 +377,9 @@ static void piix_pata_phy_reset(struct ata_port *ap)
 *	None (inherited from caller).
 *
 *	RETURNS:
 *	Non-zero if device detected, zero otherwise.
 *	Non-zero if port is enabled, it may or may not have a device
 *	attached in that case (PRESENT bit would only be set if BIOS probe
 *	was done). Zero is returned if port is disabled.
 */
static int piix_sata_probe (struct ata_port *ap)
{
@@ -401,7 +403,7 @@ static int piix_sata_probe (struct ata_port *ap)
	 */

	for (i = 0; i < 4; i++) {
		mask = (PIIX_PORT_PRESENT << i) | (PIIX_PORT_ENABLED << i);
		mask = (PIIX_PORT_ENABLED << i);

		if ((orig_mask & mask) == mask)
			if (combined || (i == ap->hard_port_no))
+71 −11
Original line number Diff line number Diff line
@@ -52,7 +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 */
@@ -67,6 +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 */
};

@@ -139,56 +143,94 @@ 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 (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;
	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));
		if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
			outl(val, ap->ioaddr.scr_addr + (sc_reg * 4)+0x10);
	}
}

/* move to PCI layer, integrate w/ MSI stuff */
@@ -210,6 +252,8 @@ 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)
@@ -251,11 +295,27 @@ 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);