115b59d9c6
PlatformPeiLib produces the EarlyPL011BaseAddress GUID HOB, and FdtPL011SerialPortLib consumes it. Extend the HOB such that it also carry the base address of the PL011 UART meant for DebugLib usage -- namely the first UART that is *not* designated by the /chosen node's "stdout-path" property. Implement this policy in PlatformPeiLib. Note that as far as the SerialPortLib+console UART is concerned, this patch makes no difference. That selection remains consistent with the pre-patch state, and therefore consistent with EarlyFdtPL011SerialPortLib. Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Leif Lindholm <quic_llindhol@quicinc.com> Cc: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20231008153912.175941-6-lersek@redhat.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4577 [lersek@redhat.com: add TianoCore BZ reference]
33 lines
775 B
C
33 lines
775 B
C
/** @file
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GUID for the HOB that caches the base address(es) of the PL011 serial port(s),
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for when PCD access is not available.
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Copyright (C) 2014, Red Hat, Inc.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EARLY_PL011_BASE_ADDRESS_H__
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#define __EARLY_PL011_BASE_ADDRESS_H__
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#define EARLY_PL011_BASE_ADDRESS_GUID {\
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0xB199DEA9, 0xFD5C, 0x4A84, \
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{ 0x80, 0x82, 0x2F, 0x41, 0x70, 0x78, 0x03, 0x05 } \
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}
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extern EFI_GUID gEarlyPL011BaseAddressGuid;
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typedef struct {
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//
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// for SerialPortLib and console IO
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//
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UINT64 ConsoleAddress;
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//
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// for DebugLib; may equal ConsoleAddress if there's only one PL011 UART
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//
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UINT64 DebugAddress;
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} EARLY_PL011_BASE_ADDRESS;
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#endif
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