1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (C) 2013 Google Inc.
4 * Copyright (C) 2014 Sage Electronics Engineering, LLC.
5 * Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com>
7 * Modified from coreboot src/soc/intel/baytrail/include/soc/irq_helper.h
11 * This file intentionally gets included multiple times, to set pic and apic
12 * modes, so should not have guard statements added.
16 * This file will use irqroute.asl and irqroute.h to generate the ACPI IRQ
17 * routing for the platform being compiled.
19 * This method uses #defines in irqroute.h along with the macros contained
20 * in this file to generate an IRQ routing for each PCI device in the system.
23 #undef PCI_DEV_PIRQ_ROUTES
24 #undef PCI_DEV_PIRQ_ROUTE
26 #undef PCIE_BRIDGE_DEV
28 #undef ROOTPORT_METHODS
29 #undef ROOTPORT_IRQ_ROUTES
34 #define ACPI_DEV_IRQ(dev_, pin_, pin_name_) \
35 Package() { ## dev_ ## ffff, pin_, \_SB.PCI0.LPCB.LNK ## pin_name_, 0 }
37 #define RP_IRQ_ROUTES(prefix_, func_, a_, b_, c_, d_) \
38 Name(prefix_ ## func_ ## P, Package() \
40 ACPI_DEV_IRQ(0x0000, 0, a_), \
41 ACPI_DEV_IRQ(0x0000, 1, b_), \
42 ACPI_DEV_IRQ(0x0000, 2, c_), \
43 ACPI_DEV_IRQ(0x0000, 3, d_), \
46 /* define as blank so ROOTPORT_METHODS only gets inserted once */
47 #define ROOTPORT_METHODS(prefix_, dev_)
49 #else /* defined(PIC_MODE) */
51 #define ACPI_DEV_IRQ(dev_, pin_, pin_name_) \
52 Package() { ## dev_ ## ffff, pin_, 0, PIRQ ## pin_name_ ## _APIC_IRQ }
54 #define RP_IRQ_ROUTES(prefix_, func_, a_, b_, c_, d_) \
55 Name(prefix_ ## func_ ## A, Package() \
57 ACPI_DEV_IRQ(0x0000, 0, a_), \
58 ACPI_DEV_IRQ(0x0000, 1, b_), \
59 ACPI_DEV_IRQ(0x0000, 2, c_), \
60 ACPI_DEV_IRQ(0x0000, 3, d_), \
63 #define ROOTPORT_METHODS(prefix_, dev_) \
64 RP_METHOD(prefix_, dev_, 0) \
65 RP_METHOD(prefix_, dev_, 1) \
66 RP_METHOD(prefix_, dev_, 2) \
67 RP_METHOD(prefix_, dev_, 3) \
68 RP_METHOD(prefix_, dev_, 4) \
69 RP_METHOD(prefix_, dev_, 5) \
70 RP_METHOD(prefix_, dev_, 6) \
71 RP_METHOD(prefix_, dev_, 7)
73 #endif /* defined(PIC_MODE) */
75 #define PCI_DEV_PIRQ_ROUTE(dev_, a_, b_, c_, d_) \
76 ACPI_DEV_IRQ(dev_, 0, a_), \
77 ACPI_DEV_IRQ(dev_, 1, b_), \
78 ACPI_DEV_IRQ(dev_, 2, c_), \
79 ACPI_DEV_IRQ(dev_, 3, d_)
81 #define PCIE_BRIDGE_DEV(prefix_, dev_, a_, b_, c_, d_) \
82 ROOTPORT_IRQ_ROUTES(prefix_, a_, b_, c_, d_) \
83 ROOTPORT_METHODS(prefix_, dev_)
85 #define ROOTPORT_IRQ_ROUTES(prefix_, a_, b_, c_, d_) \
86 RP_IRQ_ROUTES(prefix_, 0, a_, b_, c_, d_) \
87 RP_IRQ_ROUTES(prefix_, 1, b_, c_, d_, a_) \
88 RP_IRQ_ROUTES(prefix_, 2, c_, d_, a_, b_) \
89 RP_IRQ_ROUTES(prefix_, 3, d_, a_, b_, c_) \
90 RP_IRQ_ROUTES(prefix_, 4, a_, b_, c_, d_) \
91 RP_IRQ_ROUTES(prefix_, 5, b_, c_, d_, a_) \
92 RP_IRQ_ROUTES(prefix_, 6, c_, d_, a_, b_) \
93 RP_IRQ_ROUTES(prefix_, 7, d_, a_, b_, c_)
95 #define RP_METHOD(prefix_, dev_, func_)\
96 Device (prefix_ ## 0 ## func_) \
98 Name(_ADR, dev_ ## 000 ## func_) \
99 Name(_PRW, Package() { 0, 0 }) \
102 Return (prefix_ ## func_ ## A) \
104 Return (prefix_ ## func_ ## P) \
109 /* SoC specific PIRQ route configuration */
110 #include <asm/arch/acpi/irqroute.h>