New patch to review for coreboot: skylake: ACPI: Clean up GPIO controller

[Patrick Georgi]

Patrick Georgi ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11538

-gerrit

commit c679e9bbd542318dd588cded1988fced69091a63
Author: Duncan Laurie 
Date:   Thu Aug 27 17:15:00 2015 -0700

skylake: ACPI: Clean up GPIO controller

Switch the GPIO controller to use the PCR functions that are
    defined in pcr.asl.

Have the default memory regions declare a size of zero and
    be fixed up in the _CRS in order to fix compile issues on
    some versions of iasl.

BUG=chrome-os-partner:44622
    BRANCH=none
    TEST=emerge-glados coreboot

Change-Id: Ic82fcb00285aeb2515e24001ef69a882c3df1417
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: be24d9ccd9db62ca694f3a67436af25a73f59c5a
    Original-Change-Id: I13acd891427f467e289d5671add5617befef4380
    Original-Signed-off-by: Duncan Laurie 
    Original-Reviewed-on: https://chromium-review.googlesource.com/295951
    Original-Reviewed-by: Aaron Durbin 
---
 src/soc/intel/skylake/acpi/gpio.asl | 64 ++++++++++++++++---------------------
 1 file changed, 27 insertions(+), 37 deletions(-)

diff --git a/src/soc/intel/skylake/acpi/gpio.asl b/src/soc/intel/skylake/acpi/gpio.asl
index 7c2efa6..fed25c3 100644
--- a/src/soc/intel/skylake/acpi/gpio.asl
+++ b/src/soc/intel/skylake/acpi/gpio.asl
@@ -18,54 +18,44 @@
  * Foundation, Inc.
  */

-
-/* PCR Register Access Methods PCR Dword Read arg0: PID arg1: Offset */
-Method (PCRR, 2, Serialized)
-{
-	Add (ShiftLeft (Arg0, PCR_PORTID_SHIFT), Arg1, Local0)
-	Add (PCH_PCR_BASE_ADDRESS, Local0, Local0)
-	OperationRegion (PCR0, SystemMemory, Local0, 0x4)
-
-	Field(PCR0, DWordAcc, Lock, Preserve)
-	{
-		Offset(0x00),
-		DAT0, 32
-	}
-	Return (DAT0)
-}
-
 Device (GPIO)
 {
-	/* GPIO Controller */
    Name (_HID, "INT344B")
    Name (_UID, 1)
+	Name (_DDN, "GPIO Controller")

Name (RBUF, ResourceTemplate()
    {
-		Memory32Fixed (ReadWrite, 0, GPIO_BASE_SIZE, _R0)
-		Memory32Fixed (ReadWrite, 0, GPIO_BASE_SIZE, _R1)
-		Memory32Fixed (ReadWrite, 0, GPIO_BASE_SIZE, _R3)
-		Interrupt (ResourceConsumer, Level, ActiveLow, Shared, ,, _R4)
-		{
-			GPIO_IRQ14,
-		}
+		Memory32Fixed (ReadWrite, 0, 0, COM0)
+		Memory32Fixed (ReadWrite, 0, 0, COM1)
+		Memory32Fixed (ReadWrite, 0, 0, COM3)
+		Interrupt (ResourceConsumer, Level, ActiveLow, Shared,,, GIRQ)
+			{ 0 }
    })

-	Method (_CRS, 0, NotSerialized)  /* _CRS: Current Resource Settings */
+	Method (_CRS, 0, NotSerialized)
    {
-		CreateDWordField (^RBUF, ^_R0._BAS, COM0)
-		CreateDWordField (^RBUF, ^_R1._BAS, COM1)
-		CreateDWordField (^RBUF, ^_R3._BAS, COM3)
-		CreateDWordField (^RBUF, ^_R4._INT, IRQN)
+		/* GPIO Community 0 */
+		CreateDWordField (^RBUF, ^COM0._BAS, BAS0)
+		CreateDWordField (^RBUF, ^COM0._LEN, LEN0)
+		Store (^^PCRB (PID_GPIOCOM0), BAS0)
+		Store (GPIO_BASE_SIZE, LEN0)
+
+		/* GPIO Community 1 */
+		CreateDWordField (^RBUF, ^COM1._BAS, BAS1)
+		CreateDWordField (^RBUF, ^COM1._LEN, LEN1)
+		Store (^^PCRB (PID_GPIOCOM1), BAS1)
+		Store (GPIO_BASE_SIZE, LEN1)
+
+		/* GPIO Community 3 */
+		CreateDWordField (^RBUF, ^COM3._BAS, BAS3)
+		CreateDWordField (^RBUF, ^COM3._LEN, LEN3)
+		Store (^^PCRB (PID_GPIOCOM3), BAS3)
+		Store (GPIO_BASE_SIZE, LEN3)

-		Store (Add (PCH_PCR_BASE_ADDRESS,
-			ShiftLeft (PID_GPIOCOM0, PCR_PORTID_SHIFT)), COM0)
-		Store (Add (PCH_PCR_BASE_ADDRESS,
-			ShiftLeft (PID_GPIOCOM1, PCR_PORTID_SHIFT)), COM1)
-		Store (Add (PCH_PCR_BASE_ADDRESS,
-			ShiftLeft (PID_GPIOCOM3, PCR_PORTID_SHIFT)), COM3)
-		Store (And (PCRR (PID_GPIOCOM0, MISCCFG_OFFSET),
-			GPIO_DRIVER_IRQ_ROUTE_MASK), Local0)
+		CreateDWordField (^RBUF, ^GIRQ._INT, IRQN)
+		And (^^PCRR (PID_GPIOCOM0, MISCCFG_OFFSET),
+			GPIO_DRIVER_IRQ_ROUTE_MASK, Local0)

If (LEqual (Local0, GPIO_DRIVER_IRQ_ROUTE_IRQ14)) {
    		Store (GPIO_IRQ14, IRQN)