Ashish:

 Is NVIDIA 16550 Subtype defined in the public spec? If yes, can you share the link?

Thanks

Liming

发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Ashish Singhal
发送时间: 2021年5月21日 4:33
收件人: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>; devel@edk2.groups.io; michael.d.kinney@intel.com; gaoliming@byosoft.com.cn; zhiguang.liu@intel.com
主题: Re: [edk2-devel] [PATCH 1/1] MdePkg: Update DBG2 and SPCR header with NVIDIA 16550 Subtype

Hello Michael/Gao/Zhiguang,

Any update on this?

Thanks

Ashish

---

From: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
Sent: Tuesday, May 18, 2021 3:14 PM
To: devel@edk2.groups.io <devel@edk2.groups.io>; Ashish Singhal <ashishsingha@nvidia.com>; michael.d.kinney@intel.com <michael.d.kinney@intel.com>; gaoliming@byosoft.com.cn <gaoliming@byosoft.com.cn>; zhiguang.liu@intel.com <zhiguang.liu@intel.com>
Cc: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
Subject: RE: [edk2-devel] [PATCH 1/1] MdePkg: Update DBG2 and SPCR header with NVIDIA 16550 Subtype

External email: Use caution opening links or attachments


Reviewed-by: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>

> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Ashish
> Singhal via groups.io
> Sent: Tuesday, May 18, 2021 2:38 PM
> To: devel@edk2.groups.io; michael.d.kinney@intel.com;
> gaoliming@byosoft.com.cn; zhiguang.liu@intel.com
> Cc: Ashish Singhal <ashishsingha@nvidia.com>
> Subject: [edk2-devel] [PATCH 1/1] MdePkg: Update DBG2 and SPCR header with
> NVIDIA 16550 Subtype
>
> Add macros for NVIDIA 16550 UART specific debug port subtype in both
> DBG2 as well as SPCR header file.
>
> Signed-off-by: Ashish Singhal <ashishsingha@nvidia.com>
>
> ---
>  MdePkg/Include/IndustryStandard/DebugPort2Table.h            | 1 +
>  .../IndustryStandard/SerialPortConsoleRedirectionTable.h     | 5 +++++
>  2 files changed, 6 insertions(+)
>
> diff --git a/MdePkg/Include/IndustryStandard/DebugPort2Table.h
> b/MdePkg/Include/IndustryStandard/DebugPort2Table.h
> index 3faa30b76a..6a6fd2590e 100644
> --- a/MdePkg/Include/IndustryStandard/DebugPort2Table.h
> +++ b/MdePkg/Include/IndustryStandard/DebugPort2Table.h
> @@ -43,6 +43,7 @@ typedef struct {
>  #define   EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_FULL_16550
> 0x0000
>  #define
> EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_16550_SUBSET_COMPATIBLE_WITH_
> MS_DBGP_SPEC  0x0001
>  #define   EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_PL011_UART
> 0x0003
> +#define   EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_NVIDIA_16550_UART
> 0x0005
>  #define
> EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_SBSA_GENERIC_UART_2X
> 0x000d
>  #define   EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_SBSA_GENERIC_UART
> 0x000e
>  #define   EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_DCC
> 0x000f
> diff --git
> a/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.h
> b/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.h
> index 2066c7895e..ba19567f52 100644
> --- a/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.h
> +++ b/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.
> +++ h
> @@ -80,6 +80,11 @@ typedef struct {
>  ///
>  #define
> EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERFACE_TYPE_AR
> M_PL011_UART            0x03
>
> +///
> +/// NVIDIA 16550 UART
> +///
> +#define
> EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERFACE_TYPE_NV
> IDIA_16550_UART         0x05
> +
>  ///
>  /// ARM SBSA Generic UART (2.x) supporting 32-bit only accesses [deprecated]
> ///
> --
> 2.17.1
>
>
>
>
>

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