From patchwork Thu Feb 13 03:35:18 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jamin Lin X-Patchwork-Id: 13972778 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A1642C0219D for ; Thu, 13 Feb 2025 03:40:55 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tiQ1m-0007dq-Q6; Wed, 12 Feb 2025 22:36:38 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tiQ1k-0007az-RY; Wed, 12 Feb 2025 22:36:36 -0500 Received: from mail.aspeedtech.com ([211.20.114.72] helo=TWMBX01.aspeed.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tiQ1j-0000l1-2p; Wed, 12 Feb 2025 22:36:36 -0500 Received: from TWMBX01.aspeed.com (192.168.0.62) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.12; Thu, 13 Feb 2025 11:35:37 +0800 Received: from localhost.localdomain (192.168.10.10) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server id 15.2.1258.12 via Frontend Transport; Thu, 13 Feb 2025 11:35:37 +0800 To: =?utf-8?q?C=C3=A9dric_Le_Goater?= , Peter Maydell , Steven Lee , Troy Lee , Andrew Jeffery , "Joel Stanley" , "open list:All patches CC here" , "open list:ASPEED BMCs" CC: , Subject: [PATCH v3 15/28] hw/misc/aspeed_scu: Fix the revision ID cannot be set in the SOC layer for AST2700 Date: Thu, 13 Feb 2025 11:35:18 +0800 Message-ID: <20250213033531.3367697-16-jamin_lin@aspeedtech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250213033531.3367697-1-jamin_lin@aspeedtech.com> References: <20250213033531.3367697-1-jamin_lin@aspeedtech.com> MIME-Version: 1.0 Received-SPF: pass client-ip=211.20.114.72; envelope-from=jamin_lin@aspeedtech.com; helo=TWMBX01.aspeed.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_FAIL=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jamin Lin X-Patchwork-Original-From: Jamin Lin via From: Jamin Lin Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org According to the design of the AST2600, it has a Silicon Revision ID Register, specifically SCU004 and SCU014, to set the Revision ID for the AST2600. For the AST2600 A3, SCU004 is set to 0x05030303 and SCU014 is set to 0x05030303. In the "aspeed_ast2600_scu_reset" function, the hardcoded value "AST2600_A3_SILICON_REV" is set in SCU004, and "s->silicon_rev" is set in SCU014. The value of "s->silicon_rev" is set by the SOC layer via the "silicon-rev" property. However, the design of the AST2700 is different. There are two SCU controllers: SCU0 (CPU Die) and SCU1 (IO Die). In the AST2700, the firmware reads the SCU Silicon Revision ID register (SCU0_000) and the SCUIO Silicon Revision ID register (SCU1_000) and combines them into a 64-bit value. The combined value of SCU0_000[23:16] and SCU1_000[23:16] represents the silicon revision. For example, the AST2700-A1 revision is "0x0601010306010103", where SCU0_000 should be 06010103 and SCU1_000 should be 06010103. Reference: https://github.com/AspeedTech-BMC/u-boot/blob/aspeed-master-v2023.10/arch/arm/mach-aspeed/ast2700/cpu-info.c Signed-off-by: Jamin Lin --- hw/misc/aspeed_scu.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c index 2d9fe78926..b45a36a555 100644 --- a/hw/misc/aspeed_scu.c +++ b/hw/misc/aspeed_scu.c @@ -911,7 +911,6 @@ static const MemoryRegionOps aspeed_ast2700_scu_ops = { }; static const uint32_t ast2700_a0_resets[ASPEED_AST2700_SCU_NR_REGS] = { - [AST2700_SILICON_REV] = AST2700_A0_SILICON_REV, [AST2700_HW_STRAP1] = 0x00000800, [AST2700_HW_STRAP1_CLR] = 0xFFF0FFF0, [AST2700_HW_STRAP1_LOCK] = 0x00000FFF, @@ -940,6 +939,7 @@ static void aspeed_ast2700_scu_reset(DeviceState *dev) AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(dev); memcpy(s->regs, asc->resets, asc->nr_regs * 4); + s->regs[AST2700_SILICON_REV] = s->silicon_rev; } static void aspeed_2700_scu_class_init(ObjectClass *klass, void *data) @@ -1032,7 +1032,6 @@ static const MemoryRegionOps aspeed_ast2700_scuio_ops = { }; static const uint32_t ast2700_a0_resets_io[ASPEED_AST2700_SCU_NR_REGS] = { - [AST2700_SILICON_REV] = 0x06000003, [AST2700_HW_STRAP1] = 0x00000504, [AST2700_HW_STRAP1_CLR] = 0xFFF0FFF0, [AST2700_HW_STRAP1_LOCK] = 0x00000FFF,