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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 May 2021 11:53:31.5874 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a980a816-9612-4965-b4fd-08d91f73b7e2 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM5EUR03FT052.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBAPR08MB5848 Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Looks good to me. Reviewed-by: Sunny Wang -----Original Message----- From: Marcin Wojtas Sent: Monday, May 24, 2021 1:29 PM To: devel@edk2.groups.io Cc: leif@nuviainc.com; ardb+tianocore@kernel.org; Samer El-Haj-Mahmoud ; Sunny Wang ; gjb@semihalf.c= om; upstream@semihalf.com; Marcin Wojtas Subject: [edk2-platforms PATCH 3/6] Marvell: Armada7k8k/OcteonTx: Switch SP= CR UART subtype to 0x1 DBG2 ACPI table description [1] specifies three subtypes related to 16550 UART: 0x0 - 16550 compatible 0x1 - 16550 subset 0x12 - 16550 compatible with parameters defined in Generic Address Structure (GAS) It turned out however, that the Windows OS treats 0x0 subtype as legacy x86 UART with 8-bit access. ARM SoCs can use types 0x1 (16550 with fixed mmio32 access) or 0x12 (16550 with fully respected GAS contents). Switch Marvell SoCs ACPI UART subtype to 0x1 - thanks to that the same firmware can run properly with UART output in Windows 10, Linux and ESXI hypervisor. [1] https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/acpi-= debug-port-table Signed-off-by: Marcin Wojtas --- Silicon/Marvell/Armada7k8k/AcpiTables/Spcr.aslc | 2 +- Silicon/Marvell/OcteonTx/AcpiTables/T91/Spcr.aslc | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Silicon/Marvell/Armada7k8k/AcpiTables/Spcr.aslc b/Silicon/Marv= ell/Armada7k8k/AcpiTables/Spcr.aslc index 438cf7880e..6efc175bdf 100644 --- a/Silicon/Marvell/Armada7k8k/AcpiTables/Spcr.aslc +++ b/Silicon/Marvell/Armada7k8k/AcpiTables/Spcr.aslc @@ -22,7 +22,7 @@ EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE Spcr =3D { EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE, EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_REVISION ), - EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERFACE_TYPE_16550, //= InterfaceType + EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERFACE_TYPE_16450, //= InterfaceType { EFI_ACPI_RESERVED_BYTE, EFI_ACPI_RESERVED_BYTE, EFI_ACPI_RESERVED_BYTE }, //= Reserved1[3] diff --git a/Silicon/Marvell/OcteonTx/AcpiTables/T91/Spcr.aslc b/Silicon/Ma= rvell/OcteonTx/AcpiTables/T91/Spcr.aslc index f663d8ade8..2a3415f0a6 100644 --- a/Silicon/Marvell/OcteonTx/AcpiTables/T91/Spcr.aslc +++ b/Silicon/Marvell/OcteonTx/AcpiTables/T91/Spcr.aslc @@ -22,7 +22,7 @@ EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE Spcr =3D { EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE, EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_REVISION ), - EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERFACE_TYPE_16550, //= InterfaceType + EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERFACE_TYPE_16450, //= InterfaceType { EFI_ACPI_RESERVED_BYTE, EFI_ACPI_RESERVED_BYTE, EFI_ACPI_RESERVED_BYTE }, //= Reserved1[3] -- 2.29.0 IMPORTANT NOTICE: The contents of this email and any attachments are confid= ential and may also be privileged. If you are not the intended recipient, p= lease notify the sender immediately and do not disclose the contents to any= other person, use it for any purpose, or store or copy the information in = any medium. Thank you.