From nobody Tue Apr 14 22:30:06 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) client-ip=66.175.222.108; envelope-from=bounce+27952+96456+1787277+3901457@groups.io; helo=mail02.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+96456+1787277+3901457@groups.io ARC-Seal: i=1; a=rsa-sha256; t=1668652813; cv=none; d=zohomail.com; s=zohoarc; b=h8pcsxG5cHoQSZP1DAlgKuMQqzhBqK6g7krMAhGW6OSvTOB+iAZu4Q7gBxzm68jDflR7XgB5ywLwV3M+KfhnIoA49jozasI/hCyltM7ia3DIIVinigUameMHBD5gE/tXuHgq3J37dlbWEvWiZO5hrrMTms2py41aV/wbvp3jmUg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1668652813; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:References:Sender:Subject:To; bh=A2vJ1R+vpFah0iX3j5BXo7di/7045ne02edyJlP58AY=; b=kCDjY7jqI3S2xAPVg/na7uY/dOH7RhVVLHH8lYVRVOoyoDZR966IdXe18UdjcrO2/w/dWELPogNwzgZGr6/al4lABre4mGk5Q9Heo1sI15PojP5goUsIWX6d6V6L03DGST9AoLWo4wOSwRLAPQUAXo5jhHhyYDm5rENSuPV+yhI= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+96456+1787277+3901457@groups.io Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1668652813325974.4039608313985; Wed, 16 Nov 2022 18:40:13 -0800 (PST) Return-Path: X-Received: by 127.0.0.2 with SMTP id IMrXYY1788612xAZLaIl1Duz; Wed, 16 Nov 2022 18:40:08 -0800 X-Received: from loongson.cn (loongson.cn [114.242.206.163]) by mx.groups.io with SMTP id smtpd.web10.6223.1668652804765432150 for ; Wed, 16 Nov 2022 18:40:05 -0800 X-Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8CxbbcDn3VjKCQIAA--.18405S3; Thu, 17 Nov 2022 10:40:03 +0800 (CST) X-Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8DxLeD5nnVjCpcVAA--.56818S13; Thu, 17 Nov 2022 10:40:02 +0800 (CST) From: "xianglai" To: devel@edk2.groups.io Cc: Ard Biesheuvel , Bibo Mao , Chao Li , Leif Lindholm , Liming Gao , Michael D Kinney Subject: [edk2-devel] [edk2-platforms][PATCH V6 11/16] Platform/Loongson: Add RealTime Clock lib. Date: Thu, 17 Nov 2022 10:39:37 +0800 Message-Id: In-Reply-To: References: MIME-Version: 1.0 X-CM-TRANSID: AQAAf8DxLeD5nnVjCpcVAA--.56818S13 X-CM-SenderInfo: 5ol0xt5qjotxo6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBjvAXoW3CFy7tr18tr1DXrWkWFWfKrg_yoW8JF1Uto WxtFWSgw48Jr18uasa93s7Cr42gFZIqa1Sqr1FqFWjyan8Ar1DtFyUta42gryxArykAwsx KryfA3ykJFWaqFW8n29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7ZEXasCq-sGcSsGvf J3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnRJU UUqG1xkIjI8I6I8E6xAIw20EY4v20xvaj40_Wr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64 kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW7JVWDJwA2z4x0Y4vE2Ix0cI8IcVCY 1x0267AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aV CY1x0267AKxVW8Jr0_Cr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2x2 6I8E6xACxx1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6x8ErcxFaVAv8VWrMcvjeVCFs4 IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCF04k20xvY0x0EwIxGrwCF04k20xvE74AG Y7Cv6cx26rWl4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s 026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF 0xvE2Ix0cI8IcVAFwI0_Ar0_tr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26F4j6r4UJwCI42 IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Cr0_Gr1UMIIF0xvEx4A2 jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0zRVWlkUUUUU= Precedence: Bulk List-Unsubscribe: List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,lixianglai@loongson.cn X-Gm-Message-State: Z4k0VjQp7HDDQdTzkYGstio5x1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1668652808; bh=e3CB2JJfd44CGM9I4KPGzMGXc+uc5z8GM43KFSRqw9U=; h=Cc:Date:From:Reply-To:Subject:To; b=DUAsKQhAX/FoZUWQudwwd2weLHte8EkKWyW0K2pJi6MNN21lzzsXdR0S7oyIyx5Me5l K0Yu7v7r8URj/jaCHpXTaO8f2hpNkjJScXUPJoSa/TFDU3Q+Z5dn+RH+5YtSJDf2h4Mh9 x/J1k22CK0lWK5DdnKJDnjuw7mygj1PgS7Q= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1668652815987100001 Content-Type: text/plain; charset="utf-8" This library provides interfaces such as real-time clock initialization to get time and setting time. REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3D4054 Cc: Ard Biesheuvel Cc: Bibo Mao Cc: Chao Li Cc: Leif Lindholm Cc: Liming Gao Cc: Michael D Kinney Signed-off-by: xianglai li Reviewed-by: Chao Li --- .../LsRealTimeClockLib/LsRealTimeClock.h | 40 +++ .../LsRealTimeClockLib/LsRealTimeClockLib.c | 335 ++++++++++++++++++ .../LsRealTimeClockLib/LsRealTimeClockLib.inf | 47 +++ 3 files changed, 422 insertions(+) create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeCl= ockLib/LsRealTimeClock.h create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeCl= ockLib/LsRealTimeClockLib.c create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeCl= ockLib/LsRealTimeClockLib.inf diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/= LsRealTimeClock.h b/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeCl= ockLib/LsRealTimeClock.h new file mode 100644 index 0000000000..6567ec80db --- /dev/null +++ b/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/LsRealT= imeClock.h @@ -0,0 +1,40 @@ +/** @file + Implement EFI RealTimeClock runtime services via RTC Lib. + + Copyright (c) 2022, Loongson Limited. All rights reserved. + + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef LS_REAL_TIME_CLOCK_H_ +#define LS_REAL_TIME_CLOCK_H_ + +#define TOY_WRITE0_REG 0x24 +#define TOY_WRITE1_REG 0x28 +#define TOY_READ0_REG 0x2c +#define TOY_READ1_REG 0x30 +#define RTC_CTRL_REG 0x40 + +/* TOY Enable bits */ +#define RTC_ENABLE_BIT (1UL << 13) +#define TOY_ENABLE_BIT (1UL << 11) +#define OSC_ENABLE_BIT (1UL << 8) + +/* + * shift bits and filed mask + */ +#define TOY_MON_MASK 0x3f +#define TOY_DAY_MASK 0x1f +#define TOY_HOUR_MASK 0x1f +#define TOY_MIN_MASK 0x3f +#define TOY_SEC_MASK 0x3f +#define TOY_MSEC_MASK 0xf + +#define TOY_MON_SHIFT 26 +#define TOY_DAY_SHIFT 21 +#define TOY_HOUR_SHIFT 16 +#define TOY_MIN_SHIFT 10 +#define TOY_SEC_SHIFT 4 + +#endif // LS_REAL_TIME_CLOCK_H_ diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/= LsRealTimeClockLib.c b/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTim= eClockLib/LsRealTimeClockLib.c new file mode 100644 index 0000000000..4315c2074d --- /dev/null +++ b/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/LsRealT= imeClockLib.c @@ -0,0 +1,335 @@ +/** @file + Implement EFI RealTimeClock runtime services via RTC Lib. + + Copyright (c) 2022, Loongson Limited. All rights reserved. + + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include +#include + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "LsRealTimeClock.h" + +STATIC BOOLEAN mInitialized =3D FALSE; +STATIC EFI_EVENT mRtcVirtualAddrChangeEvent; +STATIC UINTN mRtcBase; +/* + Enable Real-time clock. + + @param VOID + + @retval VOID + */ +VOID +InitRtc ( + VOID + ) +{ + UINTN Val; + + if (!mInitialized) { + /* enable rtc */ + mRtcBase =3D (UINTN)PcdGet64 (PcdRtcBaseAddress); + Val =3D MmioRead32 (mRtcBase + RTC_CTRL_REG); + Val |=3D TOY_ENABLE_BIT | OSC_ENABLE_BIT; + MmioWrite32 (mRtcBase + RTC_CTRL_REG, Val); + mInitialized =3D TRUE; + } +} + +/** + Returns the current time and date information, and the time-keeping capa= bilities + of the hardware platform. + + @param Time A pointer to storage to receive a snapsho= t of the current time. + @param Capabilities An optional pointer to a buffer to receiv= e the real time clock + device's capabilities. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_INVALID_PARAMETER Time is NULL. + @retval EFI_DEVICE_ERROR The time could not be retrieved due to ha= rdware error. + @retval EFI_SECURITY_VIOLATION The time could not be retrieved due to an= authentication failure. +**/ +EFI_STATUS +EFIAPI +LibGetTime ( + OUT EFI_TIME *Time, + OUT EFI_TIME_CAPABILITIES *Capabilities + ) +{ + UINT32 Val; + + // Ensure Time is a valid pointer + if (Time =3D=3D NULL) { + return EFI_INVALID_PARAMETER; + } + + Val =3D MmioRead32 (mRtcBase + TOY_READ1_REG); + Time->Year =3D Val + 1900; + + Val =3D MmioRead32 (mRtcBase + TOY_READ0_REG); + Time->Month =3D (Val >> TOY_MON_SHIFT) & TOY_MON_MASK; + Time->Day =3D (Val >> TOY_DAY_SHIFT) & TOY_DAY_MASK; + Time->Hour =3D (Val >> TOY_HOUR_SHIFT) & TOY_HOUR_MASK; + Time->Minute =3D (Val >> TOY_MIN_SHIFT) & TOY_MIN_MASK; + Time->Second =3D (Val >> TOY_SEC_SHIFT) & TOY_SEC_MASK; + Time->Nanosecond =3D 0; + return EFI_SUCCESS; +} + +/** + Sets the current local time and date information. + + @param Time A pointer to the current time. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_INVALID_PARAMETER A time field is out of range. + @retval EFI_DEVICE_ERROR The time could not be set due due to hardw= are error. +**/ +EFI_STATUS +EFIAPI +LibSetTime ( + IN EFI_TIME *Time + ) +{ + UINT32 Val; + + // Initialize the hardware if not already done + + Val =3D 0; + Val |=3D (Time->Second << TOY_SEC_SHIFT); + Val |=3D (Time->Minute << TOY_MIN_SHIFT); + Val |=3D (Time->Hour << TOY_HOUR_SHIFT); + Val |=3D (Time->Day << TOY_DAY_SHIFT); + Val |=3D (Time->Month << TOY_MON_SHIFT); + MmioWrite32 (mRtcBase + TOY_WRITE0_REG, Val); + + Val =3D Time->Year - 1900; + MmioWrite32 (mRtcBase + TOY_WRITE1_REG, Val); + return EFI_SUCCESS; +} + +/** + Returns the current wakeup alarm clock setting. + + @param Enabled Indicates if the alarm is currently enable= d or disabled. + @param Pending Indicates if the alarm signal is pending a= nd requires acknowledgement. + @param Time The current alarm setting. + + @retval EFI_SUCCESS The alarm settings were returned. + @retval EFI_INVALID_PARAMETER Any parameter is NULL. + @retval EFI_DEVICE_ERROR The wakeup time could not be retrieved due= to a hardware error. +**/ +EFI_STATUS +EFIAPI +LibGetWakeupTime ( + OUT BOOLEAN *Enabled, + OUT BOOLEAN *Pending, + OUT EFI_TIME *Time + ) +{ + // Not a required feature + return EFI_UNSUPPORTED; +} + +/** + Sets the system wakeup alarm clock time. + + @param Enabled Enable or disable the wakeup alarm. + @param Time If Enable is TRUE, the time to set the wak= eup alarm for. + + @retval EFI_SUCCESS If Enable is TRUE, then the wakeup alarm w= as enabled. If + Enable is FALSE, then the wakeup alarm was= disabled. + @retval EFI_INVALID_PARAMETER A time field is out of range. + @retval EFI_DEVICE_ERROR The wakeup time could not be set due to a = hardware error. + @retval EFI_UNSUPPORTED A wakeup timer is not supported on this pl= atform. +**/ +EFI_STATUS +EFIAPI +LibSetWakeupTime ( + IN BOOLEAN Enabled, + OUT EFI_TIME *Time + ) +{ + // Not a required feature + return EFI_UNSUPPORTED; +} + +/** + Fixup internal data so that EFI can be call in virtual mode. + Call the passed in Child Notify event and convert any pointers in + lib to virtual mode. + + @param[in] Event The Event that is being processed + @param[in] Context Event Context +**/ +VOID +EFIAPI +LibRtcVirtualNotifyEvent ( + IN EFI_EVENT Event, + IN VOID *Context + ) +{ + // + // Only needed if you are going to support the OS calling RTC functions = in virtual mode. + // You will need to call EfiConvertPointer (). To convert any stored phy= sical addresses + // to virtual address. After the OS transitions to calling in virtual mo= de, all future + // runtime calls will be made in virtual mode. + // + EfiConvertPointer (0x0, (VOID**)&mRtcBase); + return; +} + +/** Add the RTC controller address range to the memory map. + + @param [in] ImageHandle The handle to the image. + @param [in] RtcPageBase Base address of the RTC controller. + + @retval EFI_SUCCESS Success. + @retval EFI_INVALID_PARAMETER A parameter is invalid. + @retval EFI_NOT_FOUND Flash device not found. +**/ +EFI_STATUS +KvmtoolRtcMapMemory ( + IN EFI_HANDLE ImageHandle, + IN EFI_PHYSICAL_ADDRESS RtcPageBase + ) +{ + EFI_STATUS Status; + + Status =3D gDS->AddMemorySpace ( + EfiGcdMemoryTypeMemoryMappedIo, + RtcPageBase, + EFI_PAGE_SIZE, + EFI_MEMORY_UC | EFI_MEMORY_RUNTIME + ); + if (EFI_ERROR (Status)) { + DEBUG (( + DEBUG_ERROR, "Failed to add memory space. Status =3D %r\n", + Status + )); + return Status; + } + + Status =3D gDS->AllocateMemorySpace ( + EfiGcdAllocateAddress, + EfiGcdMemoryTypeMemoryMappedIo, + 0, + EFI_PAGE_SIZE, + &RtcPageBase, + ImageHandle, + NULL + ); + if (EFI_ERROR (Status)) { + DEBUG (( + DEBUG_ERROR, + "Failed to allocate memory space. Status =3D %r\n", + Status + )); + gDS->RemoveMemorySpace ( + RtcPageBase, + EFI_PAGE_SIZE + ); + return Status; + } + + Status =3D gDS->SetMemorySpaceAttributes ( + RtcPageBase, + EFI_PAGE_SIZE, + EFI_MEMORY_UC | EFI_MEMORY_RUNTIME + ); + if (EFI_ERROR (Status)) { + DEBUG (( + DEBUG_ERROR, + "Failed to set memory attributes. Status =3D %r\n", + Status + )); + + gDS->FreeMemorySpace ( + RtcPageBase, + EFI_PAGE_SIZE + ); + + gDS->RemoveMemorySpace ( + RtcPageBase, + EFI_PAGE_SIZE + ); + } + + return Status; +} + +/** + This is the declaration of an EFI image entry point. This can be the ent= ry point to an application + written to this specification, an EFI boot service driver, or an EFI run= time driver. + + @param ImageHandle Handle that identifies the loaded image. + @param SystemTable System Table for this image. + + @retval EFI_SUCCESS The operation completed successfully. +**/ +EFI_STATUS +EFIAPI +LibRtcInitialize ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable + ) +{ + EFI_STATUS Status; + EFI_HANDLE Handle; + + InitRtc (); + Status =3D KvmtoolRtcMapMemory (ImageHandle, (mRtcBase & ~EFI_PAGE_MASK)= ); + if (EFI_ERROR (Status)) { + DEBUG (( + DEBUG_ERROR, + "Failed to map memory for loongson 7A RTC. Status =3D %r\n", + Status + )); + return Status; + } + + // Setup the setters and getters + gRT->GetTime =3D LibGetTime; + gRT->SetTime =3D LibSetTime; + + // Install the protocol + Handle =3D NULL; + Status =3D gBS->InstallMultipleProtocolInterfaces ( + &Handle, + &gEfiRealTimeClockArchProtocolGuid, NULL, + NULL + ); + ASSERT_EFI_ERROR (Status); + + // + // Register for the virtual address change event + // + Status =3D gBS->CreateEventEx ( + EVT_NOTIFY_SIGNAL, + TPL_NOTIFY, + LibRtcVirtualNotifyEvent, + NULL, + &gEfiEventVirtualAddressChangeGuid, + &mRtcVirtualAddrChangeEvent + ); + ASSERT_EFI_ERROR (Status); + return Status; +} diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/= LsRealTimeClockLib.inf b/Platform/Loongson/LoongArchQemuPkg/Library/LsRealT= imeClockLib/LsRealTimeClockLib.inf new file mode 100644 index 0000000000..5aa95650f8 --- /dev/null +++ b/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/LsRealT= imeClockLib.inf @@ -0,0 +1,47 @@ +## @file +# +# Copyright (c) 2022, Loongson Limited. All rights reserved. +# +# SPDX-License-Identifier: BSD-2-Clause-Patent +# +## + +[Defines] + INF_VERSION =3D 0x00010005 + BASE_NAME =3D LsRealTimeClockLib + FILE_GUID =3D 9793a3da-1869-4fdf-88b1-c6484341f50b + MODULE_TYPE =3D BASE + VERSION_STRING =3D 1.0 + LIBRARY_CLASS =3D RealTimeClockLib + +# +# VALID_ARCHITECTURES =3D LOONGARCH64 +# + +[Sources] + LsRealTimeClockLib.c + +[Packages] + MdePkg/MdePkg.dec + EmbeddedPkg/EmbeddedPkg.dec + Platform/Loongson/LoongArchQemuPkg/Loongson.dec + +[LibraryClasses] + IoLib + UefiLib + DebugLib + PcdLib + DxeServicesTableLib + UefiRuntimeLib + +[Pcd] + gLoongArchQemuPkgTokenSpaceGuid.PcdRtcBaseAddress + +[Guids] + gEfiEventVirtualAddressChangeGuid + +[Protocols] + gEfiRealTimeClockArchProtocolGuid # PROTOCOL ALWAYS_PRODUCED + +[Depex] + TRUE --=20 2.31.1 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#96456): https://edk2.groups.io/g/devel/message/96456 Mute This Topic: https://groups.io/mt/95082595/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-