diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-08-29 17:04:19 +0300 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2019-09-10 16:19:03 +0800 |
| commit | 0c6352ec2a238c1f89b0f394b34da57ab0849f6a (patch) | |
| tree | 507394e1a4070040e220a7bbc2bd9e6f43f84b96 /arch/x86/include | |
| parent | 19b6e1ba8c67e413d73df9db7e0c88c379e033a7 (diff) | |
x86: tangier: Reserve PCI ECAM in motherboard resources
Per PCI firmware specification the ACPI has to reserve the memory
which is defined as PCI ECAM.
Fixes: 39665beed6f7 ("x86: tangier: Enable ACPI support for Intel Tangier")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/arch-tangier/acpi/platform.asl | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/arch-tangier/acpi/southcluster.asl | 17 | ||||
| -rw-r--r-- | arch/x86/include/asm/arch-tangier/iomap.h | 10 |
3 files changed, 28 insertions, 0 deletions
diff --git a/arch/x86/include/asm/arch-tangier/acpi/platform.asl b/arch/x86/include/asm/arch-tangier/acpi/platform.asl index a75b388c47..cf75ca7543 100644 --- a/arch/x86/include/asm/arch-tangier/acpi/platform.asl +++ b/arch/x86/include/asm/arch-tangier/acpi/platform.asl @@ -6,6 +6,7 @@ */ #include <asm/acpi/statdef.asl> +#include <asm/arch/iomap.h> /* * The _PTS method (Prepare To Sleep) is called before the OS is diff --git a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl index 1b9d808b7b..f73a6b351c 100644 --- a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl +++ b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl @@ -66,6 +66,23 @@ Device (PCI0) Return (MCRS) } + /* Device Resource Consumption */ + Device (PDRC) + { + Name (_HID, EISAID("PNP0C02")) + Name (_UID, One) + + Name (PDRS, ResourceTemplate() + { + Memory32Fixed(ReadWrite, MCFG_BASE_ADDRESS, MCFG_BASE_SIZE) + }) + + Method (_CRS, 0, Serialized) + { + Return (PDRS) + } + } + Method (_OSC, 4) { /* Check for proper GUID */ diff --git a/arch/x86/include/asm/arch-tangier/iomap.h b/arch/x86/include/asm/arch-tangier/iomap.h new file mode 100644 index 0000000000..b0fc03e015 --- /dev/null +++ b/arch/x86/include/asm/arch-tangier/iomap.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2019 Intel Corporation */ + +#ifndef _TANGIER_IOMAP_H +#define _TANGIER_IOMAP_H + +#define MCFG_BASE_ADDRESS 0x3f500000 +#define MCFG_BASE_SIZE 0x00100000 + +#endif /* _TANGIER_IOMAP_H */ |