From nobody Mon Feb 9 18:45:22 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+93899+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+93899+1787277+3901457@groups.io ARC-Seal: i=1; a=rsa-sha256; t=1663299412; cv=none; d=zohomail.com; s=zohoarc; b=GR0Dj2S9NyiS1XCR+FkGWda7568A1CLSVK4fPMfy6gaipJfp8Zhjs5Kc/Auq/kwPkmU/2pDCyOo9GUbOBRJybLABxdwGcCVa5BkXDWYTh9xGMJkMXjM79eSyYqJfVpFRR9SBzwS9S7bqRnSmrjyS/DPvzJqVinOcUbIiaCFee+U= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1663299412; 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=VRLkw5W71D4XGr8YkNsyg9NliLTuPOjmW7fdYc0jHuY=; b=lPc1Q8OurZOteqkLyePL/xIA5gy5BV75qErgWRwxItZNc3OE9Bw/u5xnIQ2WAgUfGyqs0tYwTpDA0JoxW3hE/Y9wSiaJiBQrxLjKh/juHNMvDzmU58EoGkKdo8wVWa884GauQHxwkQAkIFCAxtz4mgoS1lrZup0JyZKie+2R0yo= 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+93899+1787277+3901457@groups.io Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1663299412809483.8180595131745; Thu, 15 Sep 2022 20:36:52 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id AdVbYY1788612xPLWKDQ9768; Thu, 15 Sep 2022 20:36:51 -0700 X-Received: from loongson.cn (loongson.cn [114.242.206.163]) by mx.groups.io with SMTP id smtpd.web10.2141.1663299407763247368 for ; Thu, 15 Sep 2022 20:36:51 -0700 X-Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8DxPGtB7yNj984aAA--.41628S13; Fri, 16 Sep 2022 11:36:41 +0800 (CST) From: "xianglai" To: devel@edk2.groups.io Cc: quic_llindhol@quicinc.com, michael.d.kinney@intel.com, maobibo@loongson.cn Subject: [edk2-devel] [edk2-platforms][PATCH V2 11/16] Platform/Loongson: Add RealTime Clock lib. Date: Fri, 16 Sep 2022 11:36:28 +0800 Message-Id: <8a07e97b5c993eb7eb4666c601f6968470ab3734.1663298005.git.lixianglai@loongson.cn> In-Reply-To: References: MIME-Version: 1.0 X-CM-TRANSID: AQAAf8DxPGtB7yNj984aAA--.41628S13 X-Coremail-Antispam: 1UD129KBjvAXoW3Zr4xAFyfWr17JF1fXw43Jrb_yoW8Jr17Ao WxtFWSqw48Jr18uasa9rykCrWIgF9Iqa1fXr1FqFWjyan8Ar1UtFyUta42gryfArykAwsx Kr93A3ykJFWaqFW8n29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73VFW2AGmfu7bjvjm3 AaLaJ3UjIYCTnIWjDUYxBIdaVFxhVjvjDU0xZFpf9x0zRUUUUUUUUU= X-CM-SenderInfo: 5ol0xt5qjotxo6or00hjvr0hdfq/ 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: YQ5QDDUt1uk8cGceb7uPxRBsx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1663299411; bh=Xe5IpiTJODsJHjJwJF1nn5c7QEB2x97qZokaV1+2z50=; h=Cc:Date:From:Reply-To:Subject:To; b=cGD21rBNl1KBT0ddgUTOOE25hYvNtxbB0YXZ06mpgPSJxZKrRG0bd69gmcgVkdaaFZ2 wOImcTjTdhmhcGZApJFuMn8R7mWNCm6BjDibTqjz9C4vu4YxFq4ybgskcjkUFEvweoX/t nR7qU2Bi8NOS+VuNadA9EvoFU2J6e8AuSyY= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1663299414348100051 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 Signed-off-by: xianglai li --- .../LsRealTimeClockLib/LsRealTimeClock.h | 41 +++ .../LsRealTimeClockLib/LsRealTimeClockLib.c | 343 ++++++++++++++++++ .../LsRealTimeClockLib/LsRealTimeClockLib.inf | 41 +++ 3 files changed, 425 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..c98881e5d0 --- /dev/null +++ b/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/LsRealT= imeClock.h @@ -0,0 +1,41 @@ +/** @file + Implement EFI RealTimeClock runtime services via RTC Lib. + + Copyright (c) 2021, 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..78420ddfab --- /dev/null +++ b/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/LsRealT= imeClockLib.c @@ -0,0 +1,343 @@ +/** @file + Implement EFI RealTimeClock runtime services via RTC Lib. + + Copyright (c) 2021, 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 =3D 0X100d0100; +/* + Enable Real-time clock. + + @param VOID + + @retval VOID + */ +VOID +InitRtc ( + VOID + ) +{ + UINTN Val; + + if (!mInitialized) { + /* enable rtc */ + 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; + } + + InitRtc (); + 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 + InitRtc (); + + 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; + + 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..c985f7a727 --- /dev/null +++ b/Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/LsRealT= imeClockLib.inf @@ -0,0 +1,41 @@ +## @file +# +# Copyright (c) 2021, 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 + +[Sources.common] + LsRealTimeClockLib.c + +[Packages] + MdePkg/MdePkg.dec + EmbeddedPkg/EmbeddedPkg.dec + Platform/Loongson/LoongArchQemuPkg/Loongson.dec + +[LibraryClasses] + IoLib + UefiLib + DebugLib + PcdLib + DxeServicesTableLib + UefiRuntimeLib + +[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. 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