| Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| Bin Meng | 6c9f944 | 2016-05-07 07:46:31 -0700 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2013 Google Inc. |
| 4 | * Copyright (C) 2014 Sage Electronics Engineering, LLC. |
| 5 | * Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com> |
| 6 | * |
| 7 | * Modified from coreboot src/soc/intel/baytrail/include/soc/irq_helper.h |
| Bin Meng | 6c9f944 | 2016-05-07 07:46:31 -0700 | [diff] [blame] | 8 | */ |
| 9 | |
| 10 | /* |
| 11 | * This file intentionally gets included multiple times, to set pic and apic |
| 12 | * modes, so should not have guard statements added. |
| 13 | */ |
| 14 | |
| 15 | /* |
| 16 | * This file will use irqroute.asl and irqroute.h to generate the ACPI IRQ |
| 17 | * routing for the platform being compiled. |
| 18 | * |
| 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. |
| 21 | */ |
| 22 | |
| 23 | #undef PCI_DEV_PIRQ_ROUTES |
| 24 | #undef PCI_DEV_PIRQ_ROUTE |
| 25 | #undef ACPI_DEV_IRQ |
| 26 | #undef PCIE_BRIDGE_DEV |
| 27 | #undef RP_IRQ_ROUTES |
| 28 | #undef ROOTPORT_METHODS |
| 29 | #undef ROOTPORT_IRQ_ROUTES |
| 30 | #undef RP_METHOD |
| 31 | |
| 32 | #if defined(PIC_MODE) |
| 33 | |
| 34 | #define ACPI_DEV_IRQ(dev_, pin_, pin_name_) \ |
| 35 | Package() { ## dev_ ## ffff, pin_, \_SB.PCI0.LPCB.LNK ## pin_name_, 0 } |
| 36 | |
| 37 | #define RP_IRQ_ROUTES(prefix_, func_, a_, b_, c_, d_) \ |
| 38 | Name(prefix_ ## func_ ## P, Package() \ |
| 39 | { \ |
| 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_), \ |
| 44 | }) |
| 45 | |
| 46 | /* define as blank so ROOTPORT_METHODS only gets inserted once */ |
| 47 | #define ROOTPORT_METHODS(prefix_, dev_) |
| 48 | |
| 49 | #else /* defined(PIC_MODE) */ |
| 50 | |
| 51 | #define ACPI_DEV_IRQ(dev_, pin_, pin_name_) \ |
| 52 | Package() { ## dev_ ## ffff, pin_, 0, PIRQ ## pin_name_ ## _APIC_IRQ } |
| 53 | |
| 54 | #define RP_IRQ_ROUTES(prefix_, func_, a_, b_, c_, d_) \ |
| 55 | Name(prefix_ ## func_ ## A, Package() \ |
| 56 | { \ |
| 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_), \ |
| 61 | }) |
| 62 | |
| 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) |
| 72 | |
| 73 | #endif /* defined(PIC_MODE) */ |
| 74 | |
| 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_) |
| 80 | |
| 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_) |
| 84 | |
| 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_) |
| 94 | |
| 95 | #define RP_METHOD(prefix_, dev_, func_)\ |
| 96 | Device (prefix_ ## 0 ## func_) \ |
| 97 | { \ |
| 98 | Name(_ADR, dev_ ## 000 ## func_) \ |
| 99 | Name(_PRW, Package() { 0, 0 }) \ |
| 100 | Method(_PRT) { \ |
| 101 | If (PICM) { \ |
| 102 | Return (prefix_ ## func_ ## A) \ |
| 103 | } Else { \ |
| 104 | Return (prefix_ ## func_ ## P) \ |
| 105 | } \ |
| 106 | } \ |
| 107 | } |
| 108 | |
| 109 | /* SoC specific PIRQ route configuration */ |
| Bin Meng | 15d4c41 | 2016-05-25 19:19:07 -0700 | [diff] [blame] | 110 | #include <asm/arch/acpi/irqroute.h> |