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/*
* Minimalist ACPI DSDT table for EPIA-N / NL
* Basic description of some hardware resources to allow
* interrupt assignments to be done. This is expected to be included
* into the PATA Device definition in ab_physical.asl
* (C) Copyright 2009 Jon Harrison <jon.harrison@blueyonder.co.uk>
*
*/
Name (TIM0, Package (0x07)
{
Package (0x05)
{
0x78, 0xB4, 0xF0, 0x017F, 0x0258
},
Package (0x05)
{
0x20, 0x22, 0x33, 0x47, 0x5D
},
Package (0x05)
{
0x04, 0x03, 0x02, 0x01, 0x00
},
Package (0x04)
{
0x02, 0x01, 0x00, 0x00
},
Package (0x07)
{
0x78, 0x50, 0x3C, 0x2D, 0x1E, 0x14, 0x0F
},
Package (0x0F)
{
0x06, 0x05, 0x04, 0x04, 0x03, 0x03, 0x02, 0x02,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01,0x00
},
Package (0x07)
{
0x0E, 0x08, 0x06, 0x04, 0x02, 0x01, 0x00
}
})
/* This method sets up the PATA Timing Control.
* Note that a lot of this is done in the
* coreboot VT8237R init code, but this is
* already getting very cluttered with board
* specific code. Using ACPI will allow this
* to be de-cluttered a bit (so long as we're
* running a ACPI capable OS!)
*/
Method (PMEX, 0, Serialized)
{
If (REGF)
{
/* Check if these regs are still at defaults */
/* Board specific timing improvement if not */
/* Already changed */
If (LEqual (PMPT, 0xA8))
{
Store (0x5D, PMPT)
}
If (LEqual (PSPT, 0xA8))
{
Store (0x5D, PSPT)
}
If (LEqual (SMPT, 0xA8))
{
Store (0x5D, SMPT)
}
If (LEqual (SSPT, 0xA8))
{
Store (0x5D, SSPT)
}
}
}
/* This Method Provides the method that is used to */
/* Reset ATA Drives to POST reset condition */
Method (GTF, 4, Serialized)
{
Store (Buffer (0x07)
{
0x03, 0x00, 0x00, 0x00, 0x00, 0xA0, 0xEF
}, Local1)
Store (Buffer (0x07)
{
0x03, 0x00, 0x00, 0x00, 0x00, 0xA0, 0xEF
}, Local2)
CreateByteField (Local1, 0x01, MODE)
CreateByteField (Local2, 0x01, UMOD)
CreateByteField (Local1, 0x05, PCHA)
CreateByteField (Local2, 0x05, UCHA)
And (Arg0, 0x03, Local3)
If (LEqual (And (Local3, 0x01), 0x01))
{
Store (0xB0, PCHA)
Store (0xB0, UCHA)
}
If (Arg1)
{
Store (DerefOf (Index (DerefOf (Index (TIM0, 0x05)), Arg2)),
UMOD)
Or (UMOD, 0x40, UMOD)
}
Else
{
Store (Match (DerefOf (Index (TIM0, 0x01)), MEQ, Arg3, MTR,
0x00, 0x00), Local0)
Or (0x20, DerefOf (Index (DerefOf (Index (TIM0, 0x03)), Local0
)), UMOD)
}
Store (Match (DerefOf (Index (TIM0, 0x01)), MEQ, Arg3, MTR,
0x00, 0x00), Local0)
Or (0x08, DerefOf (Index (DerefOf (Index (TIM0, 0x02)), Local0
)), MODE)
Concatenate (Local1, Local2, Local6)
Return (Local6)
}
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