linux/drivers/watchdog
Takahisa Tanaka 81fc933f17 watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2
The AcpiMmioSel bit is bit 1 in the AcpiMmioEn register, but the current
sp5100_tco driver is using bit 2.

See 2.3.3 Power Management (PM) Registers page 150 of the
AMD SB800-Series Southbridges Register Reference Guide [1].

        AcpiMmioEn - RW – 8/16/32 bits - [PM_Reg: 24h]
        Field Name        Bits  Default  Description
        AcpiMMioDecodeEn  0     0b       Set to 1 to enable AcpiMMio space.
        AcpiMMIoSel       1     0b       Set AcpiMMio registers to be memory-mapped or IO-mapped space.
                                         0: Memory-mapped space
                                         1: I/O-mapped space

The sp5100_tco driver expects zero as a value of AcpiMmioSel (bit 1).

Fortunately, no problems were caused by this typo, because the default
value of the undocumented misused bit 2 seems to be zero.

However, the sp5100_tco driver should use the correct bitmask value.

[1] http://support.amd.com/us/Embedded_TechDocs/45482.pdf

Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
2013-03-22 23:21:55 +01:00
..
acquirewdt.c
advantechwdt.c
alim1535_wdt.c
alim7101_wdt.c
ar7_wdt.c
at32ap700x_wdt.c
at91rm9200_wdt.c
at91sam9_wdt.c
at91sam9_wdt.h
ath79_wdt.c
bcm47xx_wdt.c
bcm63xx_wdt.c
bfin_wdt.c
booke_wdt.c
coh901327_wdt.c
cpu5wdt.c
cpwd.c
da9052_wdt.c
da9055_wdt.c
davinci_wdt.c
dw_wdt.c
ep93xx_wdt.c
eurotechwdt.c
f71808e_wdt.c
gef_wdt.c
geodewdt.c
hpwdt.c
i6300esb.c
ib700wdt.c
ibmasr.c
ie6xx_wdt.c
imx2_wdt.c
indydog.c
intel_scu_watchdog.c
intel_scu_watchdog.h
iop_wdt.c
it87_wdt.c
it8712f_wdt.c
iTCO_vendor_support.c
iTCO_vendor.h
iTCO_wdt.c
ixp4xx_wdt.c
jz4740_wdt.c
Kconfig
ks8695_wdt.c
lantiq_wdt.c
m54xx_wdt.c
machzwd.c
Makefile
max63xx_wdt.c
mixcomwd.c
mpc8xxx_wdt.c
mpcore_wdt.c
mtx-1_wdt.c
mv64x60_wdt.c
nuc900_wdt.c
nv_tco.c
nv_tco.h
octeon-wdt-main.c
octeon-wdt-nmi.S
of_xilinx_wdt.c
omap_wdt.c
omap_wdt.h
orion_wdt.c
pc87413_wdt.c
pcwd_pci.c
pcwd_usb.c
pcwd.c
pika_wdt.c
pnx833x_wdt.c
pnx4008_wdt.c
rc32434_wdt.c
rdc321x_wdt.c
retu_wdt.c
riowd.c
s3c2410_wdt.c
sa1100_wdt.c
sb_wdog.c
sbc60xxwdt.c
sbc7240_wdt.c
sbc8360.c
sbc_epx_c3.c
sbc_fitpc2_wdt.c
sc520_wdt.c
sc1200wdt.c
sch311x_wdt.c
scx200_wdt.c
shwdt.c
smsc37b787_wdt.c
softdog.c
sp805_wdt.c
sp5100_tco.c
sp5100_tco.h
stmp3xxx_rtc_wdt.c
ts72xx_wdt.c
twl4030_wdt.c
txx9wdt.c
ux500_wdt.c
via_wdt.c
w83627hf_wdt.c
w83697hf_wdt.c
w83697ug_wdt.c
w83877f_wdt.c
w83977f_wdt.c
wafer5823wdt.c
watchdog_core.c
watchdog_core.h
watchdog_dev.c
wd501p.h
wdrtas.c
wdt285.c
wdt977.c
wdt_pci.c
wdt.c
wm831x_wdt.c
wm8350_wdt.c
xen_wdt.c