Merge branch 'master' of git://git.denx.de/u-boot-x86

1 files changed, 111 insertions, 0 deletions

diff --git a/arch/x86/include/asm/arch-baytrail/acpi/irq_helper.h b/arch/x86/include/asm/arch-baytrail/acpi/irq_helper.h
new file mode 100644
index 0000000..2c3585a
--- /dev/null
+++ b/arch/x86/include/asm/arch-baytrail/acpi/irq_helper.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2014 Sage Electronics Engineering, LLC.
+ * Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com>
+ *
+ * Modified from coreboot src/soc/intel/baytrail/include/soc/irq_helper.h
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * This file intentionally gets included multiple times, to set pic and apic
+ * modes, so should not have guard statements added.
+ */
+
+/*
+ * This file will use irqroute.asl and irqroute.h to generate the ACPI IRQ
+ * routing for the platform being compiled.
+ *
+ * This method uses #defines in irqroute.h along with the macros contained
+ * in this file to generate an IRQ routing for each PCI device in the system.
+ */
+
+#undef PCI_DEV_PIRQ_ROUTES
+#undef PCI_DEV_PIRQ_ROUTE
+#undef ACPI_DEV_IRQ
+#undef PCIE_BRIDGE_DEV
+#undef RP_IRQ_ROUTES
+#undef ROOTPORT_METHODS
+#undef ROOTPORT_IRQ_ROUTES
+#undef RP_METHOD
+
+#if defined(PIC_MODE)
+
+#define ACPI_DEV_IRQ(dev_, pin_, pin_name_) \
+	Package() { ## dev_ ## ffff, pin_, \_SB.PCI0.LPCB.LNK ## pin_name_, 0 }
+
+#define RP_IRQ_ROUTES(prefix_, func_, a_, b_, c_, d_) \
+Name(prefix_ ## func_ ## P, Package() \
+{ \
+	ACPI_DEV_IRQ(0x0000, 0, a_), \
+	ACPI_DEV_IRQ(0x0000, 1, b_), \
+	ACPI_DEV_IRQ(0x0000, 2, c_), \
+	ACPI_DEV_IRQ(0x0000, 3, d_), \
+})
+
+/* define as blank so ROOTPORT_METHODS only gets inserted once */
+#define ROOTPORT_METHODS(prefix_, dev_)
+
+#else /* defined(PIC_MODE) */
+
+#define ACPI_DEV_IRQ(dev_, pin_, pin_name_) \
+	Package() { ## dev_ ## ffff, pin_, 0, PIRQ ## pin_name_ ## _APIC_IRQ }
+
+#define RP_IRQ_ROUTES(prefix_, func_, a_, b_, c_, d_) \
+Name(prefix_ ## func_ ## A, Package() \
+{ \
+	ACPI_DEV_IRQ(0x0000, 0, a_), \
+	ACPI_DEV_IRQ(0x0000, 1, b_), \
+	ACPI_DEV_IRQ(0x0000, 2, c_), \
+	ACPI_DEV_IRQ(0x0000, 3, d_), \
+})
+
+#define ROOTPORT_METHODS(prefix_, dev_) \
+	RP_METHOD(prefix_, dev_, 0) \
+	RP_METHOD(prefix_, dev_, 1) \
+	RP_METHOD(prefix_, dev_, 2) \
+	RP_METHOD(prefix_, dev_, 3) \
+	RP_METHOD(prefix_, dev_, 4) \
+	RP_METHOD(prefix_, dev_, 5) \
+	RP_METHOD(prefix_, dev_, 6) \
+	RP_METHOD(prefix_, dev_, 7)
+
+#endif /* defined(PIC_MODE) */
+
+#define PCI_DEV_PIRQ_ROUTE(dev_, a_, b_, c_, d_) \
+	ACPI_DEV_IRQ(dev_, 0, a_), \
+	ACPI_DEV_IRQ(dev_, 1, b_), \
+	ACPI_DEV_IRQ(dev_, 2, c_), \
+	ACPI_DEV_IRQ(dev_, 3, d_)
+
+#define PCIE_BRIDGE_DEV(prefix_, dev_, a_, b_, c_, d_) \
+	ROOTPORT_IRQ_ROUTES(prefix_, a_, b_, c_, d_) \
+	ROOTPORT_METHODS(prefix_, dev_)
+
+#define ROOTPORT_IRQ_ROUTES(prefix_, a_, b_, c_, d_) \
+	RP_IRQ_ROUTES(prefix_, 0, a_, b_, c_, d_) \
+	RP_IRQ_ROUTES(prefix_, 1, b_, c_, d_, a_) \
+	RP_IRQ_ROUTES(prefix_, 2, c_, d_, a_, b_) \
+	RP_IRQ_ROUTES(prefix_, 3, d_, a_, b_, c_) \
+	RP_IRQ_ROUTES(prefix_, 4, a_, b_, c_, d_) \
+	RP_IRQ_ROUTES(prefix_, 5, b_, c_, d_, a_) \
+	RP_IRQ_ROUTES(prefix_, 6, c_, d_, a_, b_) \
+	RP_IRQ_ROUTES(prefix_, 7, d_, a_, b_, c_)
+
+#define RP_METHOD(prefix_, dev_, func_)\
+Device (prefix_ ## 0 ## func_) \
+{ \
+	Name(_ADR, dev_ ## 000 ## func_) \
+	Name(_PRW, Package() { 0, 0 }) \
+	Method(_PRT) { \
+		If (PICM) { \
+			Return (prefix_ ## func_ ## A) \
+		} Else { \
+			Return (prefix_ ## func_ ## P) \
+		} \
+	} \
+}
+
+/* SoC specific PIRQ route configuration */
+#include "irqroute.h"