From nobody Mon Feb 9 07:56:35 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1768901457; cv=none; d=zohomail.com; s=zohoarc; b=Vdk7QUi3vHgnj+oM2/DcQRyluyDAJU2FmYcF0ocMuvr95ipVrV+gHiZCFTL6E19m7m+0LXxVib8ky10hKfClf5WfY618v/lI/tgmdoGgJqeU36BYEsgiiDjmQDnAkYtf+WyCEvEhKG46c8d5GpylK2uTbZ/FlvrID6OMhrFz8xU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1768901457; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=PPMDDbFZ8RrP1JbDJiBNBo91/6XjFlYmHtfGp+hlpDw=; b=GdJXWe7Bn5xRIIyVUeiqYw5qoGG5befwqof6smbE1Iv+fpqUpBicq6CUVk3LMMUfFT/BoPALjbEtwrgFwkdzN1vwspRsh/5138zsmGCXhu7+oqEVk+A66YWQbpR8AFrsEV65VU5oUPTy0VktJVo2jZqkxL++h4shB1QocPEj7nA= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1768901457430330.1836421506798; Tue, 20 Jan 2026 01:30:57 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vi83n-0003ZT-Rj; Tue, 20 Jan 2026 04:30:03 -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 1vi83l-0003Uf-AV; Tue, 20 Jan 2026 04:30:01 -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 1vi83j-0005eG-Rp; Tue, 20 Jan 2026 04:30:01 -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 15.2.1748.10; Tue, 20 Jan 2026 17:29:40 +0800 Received: from mail.aspeedtech.com (192.168.10.10) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server id 15.2.1748.10 via Frontend Transport; Tue, 20 Jan 2026 17:29:40 +0800 To: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Peter Maydell , Steven Lee , Troy Lee , Andrew Jeffery , "Joel Stanley" , "open list:ASPEED BMCs" , "open list:All patches CC here" CC: , , Subject: [PATCH v1 05/11] hw/arm/ast27x0: Add DRAM alias for TSP SDRAM remap Date: Tue, 20 Jan 2026 17:29:30 +0800 Message-ID: <20260120092939.2708302-6-jamin_lin@aspeedtech.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260120092939.2708302-1-jamin_lin@aspeedtech.com> References: <20260120092939.2708302-1-jamin_lin@aspeedtech.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jamin Lin From: Jamin Lin via qemu development Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1768901460758158500 Content-Type: text/plain; charset="utf-8" This commit adds a MemoryRegion alias to support PSP access to TSP SDRAM through shared memory remapping, as defined by the default SCU configuration. The TSP coprocessor exposes one DRAM alias: - remap maps PSP DRAM at 0x42e000000 (32MB) to TSP SDRAM offset 0x0 This region corresponds to the default SCU register value, which controls the mapping between PSP and coprocessor memory windows. Set TSP CPUID 5. SCU VMState version remains at 3, as it was already bumped= in a previous commit. Signed-off-by: Jamin Lin --- include/hw/misc/aspeed_scu.h | 1 + hw/arm/aspeed_ast27x0-fc.c | 2 ++ hw/arm/aspeed_ast27x0-tsp.c | 3 +++ hw/arm/aspeed_ast27x0.c | 2 ++ hw/misc/aspeed_scu.c | 15 +++++++++++++++ 5 files changed, 23 insertions(+) diff --git a/include/hw/misc/aspeed_scu.h b/include/hw/misc/aspeed_scu.h index 6f7f7d2766..1e18dcd4a5 100644 --- a/include/hw/misc/aspeed_scu.h +++ b/include/hw/misc/aspeed_scu.h @@ -43,6 +43,7 @@ struct AspeedSCUState { MemoryRegion dram_remap_alias[3]; MemoryRegion *dram; int ssp_cpuid; + int tsp_cpuid; }; =20 #define AST2400_A0_SILICON_REV 0x02000303U diff --git a/hw/arm/aspeed_ast27x0-fc.c b/hw/arm/aspeed_ast27x0-fc.c index b788e6ca2a..e03f6870e7 100644 --- a/hw/arm/aspeed_ast27x0-fc.c +++ b/hw/arm/aspeed_ast27x0-fc.c @@ -103,6 +103,8 @@ static bool ast2700fc_ca35_init(MachineState *machine, = Error **errp) sc->uarts_num, serial_hd(2)); object_property_set_int(OBJECT(&s->ca35), "ssp-cpuid", 4, &error_abort); + object_property_set_int(OBJECT(&s->ca35), "tsp-cpuid", 5, + &error_abort); if (!qdev_realize(DEVICE(&s->ca35), NULL, errp)) { return false; } diff --git a/hw/arm/aspeed_ast27x0-tsp.c b/hw/arm/aspeed_ast27x0-tsp.c index 46691080d1..5d2977b45c 100644 --- a/hw/arm/aspeed_ast27x0-tsp.c +++ b/hw/arm/aspeed_ast27x0-tsp.c @@ -198,6 +198,9 @@ static void aspeed_soc_ast27x0tsp_realize(DeviceState *= dev_soc, Error **errp) memory_region_add_subregion(s->memory, sc->memmap[ASPEED_DEV_SCU], &s->scu_alias); =20 + /* SDRAM remap alias used by PSP to access TSP SDRAM */ + memory_region_add_subregion(&s->sdram, 0, &s->scu->dram_remap_alias[2]= ); + /* INTC */ if (!sysbus_realize(SYS_BUS_DEVICE(&a->intc[0]), errp)) { return; diff --git a/hw/arm/aspeed_ast27x0.c b/hw/arm/aspeed_ast27x0.c index ae8b22fc1c..6e4b456b8c 100644 --- a/hw/arm/aspeed_ast27x0.c +++ b/hw/arm/aspeed_ast27x0.c @@ -391,6 +391,8 @@ static void aspeed_soc_ast2700_init(Object *obj) "hw-prot-key"); object_property_add_alias(obj, "ssp-cpuid", OBJECT(&s->scu), "ssp-cpuid"); + object_property_add_alias(obj, "tsp-cpuid", OBJECT(&s->scu), + "tsp-cpuid"); =20 object_initialize_child(obj, "scuio", &s->scuio, TYPE_ASPEED_2700_SCUI= O); qdev_prop_set_uint32(DEVICE(&s->scuio), "silicon-rev", diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c index 4b74e5adcb..ec373147ab 100644 --- a/hw/misc/aspeed_scu.c +++ b/hw/misc/aspeed_scu.c @@ -629,6 +629,7 @@ static const Property aspeed_scu_properties[] =3D { DEFINE_PROP_UINT32("hw-strap2", AspeedSCUState, hw_strap2, 0), DEFINE_PROP_UINT32("hw-prot-key", AspeedSCUState, hw_prot_key, 0), DEFINE_PROP_INT32("ssp-cpuid", AspeedSCUState, ssp_cpuid, -1), + DEFINE_PROP_INT32("tsp-cpuid", AspeedSCUState, tsp_cpuid, -1), DEFINE_PROP_LINK("dram", AspeedSCUState, dram, TYPE_MEMORY_REGION, MemoryRegion *), }; @@ -903,6 +904,20 @@ static void aspeed_2700_scu_dram_remap_alias_init(Aspe= edSCUState *s) "ssp.dram.remap2", s->dram, 0x2c000000, 32 * MiB); } + + if (s->tsp_cpuid > 0) { + /* + * The TSP coprocessor uses one memory alias (remap) to access a s= hared + * region in the PSP DRAM: + * + * - remap maps PSP DRAM at 0x42e000000 (size: 32MB) to TSP SDRAM + * offset 0x0 + * + */ + memory_region_init_alias(&s->dram_remap_alias[2], OBJECT(s), + "tsp.dram.remap", s->dram, + 0x2e000000, 32 * MiB); + } } =20 static uint64_t aspeed_ast2700_scu_read(void *opaque, hwaddr offset, --=20 2.43.0