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sp5100_tco: fix the device check for SB800 and later chipsets

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For SB800 and later chipsets, the register definitions are the same
with SB800. And for SB700 and older chipsets, the definitions should
be same with SP5100/SB7x0.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Cc: Denis Turischev <denis.turischev@compulab.co.il>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Huang Rui 2015-11-23 18:07:35 +08:00 committed by Wim Van Sebroeck
parent cca118fa2a
commit bdecfcdb54
1 changed files with 16 additions and 12 deletions
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28
drivers/watchdog/sp5100_tco.c
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@ -335,21 +335,24 @@ static unsigned char sp5100_tco_setupdevice(void)
if (!sp5100_tco_pci)
return 0;
pr_info("PCI Revision ID: 0x%x\n", sp5100_tco_pci->revision);
pr_info("PCI Vendor ID: 0x%x, Device ID: 0x%x, Revision ID: 0x%x\n",
sp5100_tco_pci->vendor, sp5100_tco_pci->device,
sp5100_tco_pci->revision);
/*
* Determine type of southbridge chipset.
*/
if (sp5100_tco_pci->revision >= 0x40) {
dev_name = SB800_DEVNAME;
index_reg = SB800_IO_PM_INDEX_REG;
data_reg = SB800_IO_PM_DATA_REG;
base_addr = SB800_PM_WATCHDOG_BASE;
} else {
if (sp5100_tco_pci->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS &&
sp5100_tco_pci->revision < 0x40) {
dev_name = SP5100_DEVNAME;
index_reg = SP5100_IO_PM_INDEX_REG;
data_reg = SP5100_IO_PM_DATA_REG;
base_addr = SP5100_PM_WATCHDOG_BASE;
} else {
dev_name = SB800_DEVNAME;
index_reg = SB800_IO_PM_INDEX_REG;
data_reg = SB800_IO_PM_DATA_REG;
base_addr = SB800_PM_WATCHDOG_BASE;
}
/* Request the IO ports used by this driver */
@ -385,7 +388,12 @@ static unsigned char sp5100_tco_setupdevice(void)
* Secondly, Find the watchdog timer MMIO address
* from SBResource_MMIO register.
*/
if (sp5100_tco_pci->revision >= 0x40) {
if (sp5100_tco_pci->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS &&
sp5100_tco_pci->revision < 0x40) {
/* Read SBResource_MMIO from PCI config(PCI_Reg: 9Ch) */
pci_read_config_dword(sp5100_tco_pci,
SP5100_SB_RESOURCE_MMIO_BASE, &val);
} else {
/* Read SBResource_MMIO from AcpiMmioEn(PM_Reg: 24h) */
outb(SB800_PM_ACPI_MMIO_EN+3, SB800_IO_PM_INDEX_REG);
val = inb(SB800_IO_PM_DATA_REG);
@ -395,10 +403,6 @@ static unsigned char sp5100_tco_setupdevice(void)
val = val << 8 | inb(SB800_IO_PM_DATA_REG);
outb(SB800_PM_ACPI_MMIO_EN+0, SB800_IO_PM_INDEX_REG);
val = val << 8 | inb(SB800_IO_PM_DATA_REG);
} else {
/* Read SBResource_MMIO from PCI config(PCI_Reg: 9Ch) */
pci_read_config_dword(sp5100_tco_pci,
SP5100_SB_RESOURCE_MMIO_BASE, &val);
}
/* The SBResource_MMIO is enabled and mapped memory space? */