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Fri, 17 Jul 2026 08:46:01 +0000 From: Jamin Lin To: =?iso-8859-1?Q?C=E9dric_Le_Goater?= , Peter Maydell , Steven Lee , Troy Lee , Kane Chen , Andrew Jeffery , Joel Stanley , Alistair Francis , Fabiano Rosas , Laurent Vivier , Paolo Bonzini , "open list:ASPEED BMCs" , "open list:All patches CC here" CC: Jamin Lin , Troy Lee , =?iso-8859-1?Q?Philippe_Mathieu-Daud=E9?= , =?iso-8859-1?Q?C=E9dric_Le_Goater?= Subject: [PATCH v4 1/9] hw/misc/aspeed_scu: Introduce Aspeed2700SCUState Thread-Topic: [PATCH v4 1/9] hw/misc/aspeed_scu: Introduce Aspeed2700SCUState Thread-Index: AQHdFciyKO+oxReK1kK49WRxa7rndg== Date: Fri, 17 Jul 2026 08:46:01 +0000 Message-ID: <20260717084559.3477061-2-jamin_lin@aspeedtech.com> References: <20260717084559.3477061-1-jamin_lin@aspeedtech.com> In-Reply-To: <20260717084559.3477061-1-jamin_lin@aspeedtech.com> Accept-Language: zh-TW, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=aspeedtech.com; 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envelope-from=jamin_lin@aspeedtech.com; helo=TYPPR03CU001.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Introduce Aspeed2700SCUState as an AST2700-specific subclass of=0A= AspeedSCUState.=0A= =0A= Currently, AST1700 and AST2700 reuse the generic AspeedSCUState.=0A= However, AST2700 requires SCU functionality that is specific to the=0A= platform, particularly for interactions with its coprocessors.=0A= =0A= Introduce a dedicated Aspeed2700SCUState to provide an extension point=0A= for AST2700-specific functionality while keeping the generic=0A= AspeedSCUState unchanged.=0A= =0A= Subsequent patches will migrate AST2700 users to the new subclass and=0A= move AST2700-specific code into it.=0A= =0A= No functional change.=0A= =0A= Signed-off-by: Jamin Lin =0A= Reviewed-by: Philippe Mathieu-Daud=E9 =0A= Reviewed-by: C=E9dric Le Goater =0A= Tested-by: Philippe Mathieu-Daud=E9 =0A= ---=0A= include/hw/misc/aspeed_scu.h | 5 +++++=0A= hw/misc/aspeed_scu.c | 8 +++++++-=0A= 2 files changed, 12 insertions(+), 1 deletion(-)=0A= =0A= diff --git a/include/hw/misc/aspeed_scu.h b/include/hw/misc/aspeed_scu.h=0A= index c30940ab76..904549465f 100644=0A= --- a/include/hw/misc/aspeed_scu.h=0A= +++ b/include/hw/misc/aspeed_scu.h=0A= @@ -20,6 +20,7 @@ OBJECT_DECLARE_TYPE(AspeedSCUState, AspeedSCUClass, ASPEE= D_SCU)=0A= #define TYPE_ASPEED_2500_SCU TYPE_ASPEED_SCU "-ast2500"=0A= #define TYPE_ASPEED_2600_SCU TYPE_ASPEED_SCU "-ast2600"=0A= #define TYPE_ASPEED_2700_SCU TYPE_ASPEED_SCU "-ast2700"=0A= +OBJECT_DECLARE_SIMPLE_TYPE(Aspeed2700SCUState, ASPEED_2700_SCU)=0A= #define TYPE_ASPEED_2700_SCUIO TYPE_ASPEED_SCU "io" "-ast2700"=0A= #define TYPE_ASPEED_1030_SCU TYPE_ASPEED_SCU "-ast1030"=0A= =0A= @@ -41,6 +42,10 @@ struct AspeedSCUState {=0A= uint32_t hw_prot_key;=0A= };=0A= =0A= +struct Aspeed2700SCUState {=0A= + AspeedSCUState parent_obj;=0A= +};=0A= +=0A= #define AST2400_A1_SILICON_REV 0x02010303U=0A= #define AST2500_A1_SILICON_REV 0x04010303U=0A= #define AST2600_A3_SILICON_REV 0x05030303U=0A= diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c=0A= index 5dbf81c0ce..efe1d6315b 100644=0A= --- a/hw/misc/aspeed_scu.c=0A= +++ b/hw/misc/aspeed_scu.c=0A= @@ -930,6 +930,11 @@ static void aspeed_ast2700_scu_reset_hold(Object *obj,= ResetType type)=0A= s->regs[AST2700_HW_STRAP1] =3D s->hw_strap1;=0A= }=0A= =0A= +static void aspeed_2700_scu_realize(DeviceState *dev, Error **errp)=0A= +{=0A= + aspeed_scu_realize(dev, errp);=0A= +}=0A= +=0A= static void aspeed_2700_scu_class_init(ObjectClass *klass, const void *dat= a)=0A= {=0A= DeviceClass *dc =3D DEVICE_CLASS(klass);=0A= @@ -937,6 +942,7 @@ static void aspeed_2700_scu_class_init(ObjectClass *kla= ss, const void *data)=0A= AspeedSCUClass *asc =3D ASPEED_SCU_CLASS(klass);=0A= =0A= dc->desc =3D "ASPEED 2700 System Control Unit";=0A= + dc->realize =3D aspeed_2700_scu_realize;=0A= rc->phases.hold =3D aspeed_ast2700_scu_reset_hold;=0A= asc->resets =3D ast2700_a0_resets;=0A= asc->calc_hpll =3D aspeed_2600_scu_calc_hpll;=0A= @@ -1161,7 +1167,7 @@ static const TypeInfo aspeed_scu_types[] =3D {=0A= {=0A= .name =3D TYPE_ASPEED_2700_SCU,=0A= .parent =3D TYPE_ASPEED_SCU,=0A= - .instance_size =3D sizeof(AspeedSCUState),=0A= + .instance_size =3D sizeof(Aspeed2700SCUState),=0A= .class_init =3D aspeed_2700_scu_class_init,=0A= },=0A= {=0A= -- =0A= 2.43.0=0A=