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-rw-r--r--arch/x86/include/asm/arch-baytrail/acpi/irqlinks.asl4
-rw-r--r--arch/x86/include/asm/arch-baytrail/acpi/lpc.asl60
2 files changed, 64 insertions, 0 deletions
diff --git a/arch/x86/include/asm/arch-baytrail/acpi/irqlinks.asl b/arch/x86/include/asm/arch-baytrail/acpi/irqlinks.asl
index aa7208529c..0affa2335c 100644
--- a/arch/x86/include/asm/arch-baytrail/acpi/irqlinks.asl
+++ b/arch/x86/include/asm/arch-baytrail/acpi/irqlinks.asl
@@ -21,6 +21,10 @@ Scope (\)
PRTF, 8,
PRTG, 8,
PRTH, 8,
+ Offset (0x88),
+ , 3,
+ UI3E, 1,
+ UI4E, 1
}
}
diff --git a/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl b/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl
index 1dca9770c5..385671c968 100644
--- a/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl
+++ b/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl
@@ -14,6 +14,15 @@ Device (LPCB)
{
Name(_ADR, 0x001f0000)
+ OperationRegion(LPC0, PCI_Config, 0x00, 0x100)
+ Field(LPC0, AnyAcc, NoLock, Preserve) {
+ Offset(0x08),
+ SRID, 8,
+ Offset(0x80),
+ C1EN, 1,
+ Offset(0x84)
+ }
+
#include "irqlinks.asl"
/* Firmware Hub */
@@ -81,6 +90,57 @@ Device (LPCB)
}
}
+ /* Internal UART */
+ Device (IURT)
+ {
+ Name(_HID, EISAID("PNP0501"))
+ Name(_UID, 1)
+
+ Method(_STA, 0, Serialized)
+ {
+ /*
+ * TODO:
+ *
+ * Need to hide the internal UART depending on whether
+ * internal UART is enabled or not so that external
+ * SuperIO UART can be exposed to system.
+ */
+ Store(1, UI3E)
+ Store(1, UI4E)
+ Store(1, C1EN)
+ Return (STA_VISIBLE)
+
+ }
+
+ Method(_DIS, 0, Serialized)
+ {
+ Store(0, UI3E)
+ Store(0, UI4E)
+ Store(0, C1EN)
+ }
+
+ Method(_CRS, 0, Serialized)
+ {
+ Name(BUF0, ResourceTemplate()
+ {
+ IO(Decode16, 0x03f8, 0x03f8, 0x01, 0x08)
+ IRQNoFlags() { 3 }
+ })
+
+ Name(BUF1, ResourceTemplate()
+ {
+ IO(Decode16, 0x03f8, 0x03f8, 0x01, 0x08)
+ IRQNoFlags() { 4 }
+ })
+
+ If (LLessEqual(SRID, 0x04)) {
+ Return (BUF0)
+ } Else {
+ Return (BUF1)
+ }
+ }
+ }
+
/* Real Time Clock */
Device (RTC)
{