Re: [coreboot] rtc wake up does not work on ASUS M2V-MX SE

[Fengwei Zhang]

Hi Rudolf,

Thanks for your email. I tried with your way, but the RTC0 device still 
is not visible.
either from /dev/ or /sys/class/ directory.
I also extract DSDT table from Original BIOS,

        Device(RTC0)
        {
        Name(_HID, EISAID("PNP0B00"))
        Name(CRS0, ResourceTemplate()
        {
        IO(Decode16, 0x0070, 0x0070, 0x00, 0x02)
        IRQNoFlags() {8}
        })
        Name(CRS1, ResourceTemplate()
        {
        IO(Decode16, 0x0070, 0x0070, 0x00, 0x02)
        })
        Method(_CRS, 0, NotSerialized)
        {
        If(LOr(LEqual(SHTB, Zero), LEqual(^^HPET.SHTS(), Zero)))
        {
        Return(CRS0)
        }
        Return(CRS1)
        }
        }
It looks like same thing you posted in last email. but I cannot compile 
successfully for this one because of some unrecognized symbol of this 
line: LEqual(^^HPET.SHTS(),

I did enable the power button in lpc.c file.

Is there anything else I am missing?

Thanks,
Fengwei


On 04/19/2011 02:24 PM, Rudolf Marek wrote:
Hi

I think two things are missing:

1) Paste this into the dsdt table:

Device(RTC0) {
Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4
compatible) */
Name(_CRS, ResourceTemplate() {
IRQNoFlags(){8}
IO(Decode16,0x0070, 0x0070, 0, 2)
})
} /* End Device(_SB.PCI0.LpcIsaBr.RTC0) */

Now the RTC device should be visible. Second problem is that a wakeup
event is not enabled. This can be fixed most likely here:

Index: lpc.c
===================================================================
--- lpc.c (revision 6474)
+++ lpc.c (working copy)
@@ -237,6 +237,9 @@
printk(BIOS_DEBUG, "SLP_TYP type was %x %x\n", tmp, acpi_slp_type);
#endif

+ /* enable power button wakeup and from RTC */
+ outb(0x5, VT8237R_ACPI_IO_BASE + 0x3);
+
/* All SMI on, both IDE buses ON, PSON rising edge. */
outw(0x1, VT8237R_ACPI_IO_BASE + 0x2c);


Completely untested but might even work.
Please let me know if it works for you,

Thanks,
Rudolf


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