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b=qCXxAu2afjQX85150eTXY9/f60DUwK/Y7ngDLLK7Rhlt2ds0HSMKSdAqxbHvCMB89Sjg lqZRVdzPVNvx7iv69WHRw4bSsGsfKc+4R9k3paIqOHMgmUMau51TjoUOB9GwYEsDhmLP Pa4gvM5LY+Mn/x/R9+Hm89iW4Sd3kueWs1Bzo++WlCrdZouBO/OFTnilkcpFZB5RmAXI V5d3DG9Qh1ZoeHLTMJuh59D6C12ZKzh+RqwQXyQ+aH5ZAvQXkTEQGeSy3TB+xLLGDnwn VVbvjCuZRdXpAIWXS8O3lhZav6U2BkL2kSaXEuw4zTtG2YZfYuh6lrqYfjdTIwkP6GyL qw== From: Glenn Miles To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: Glenn Miles , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Nicholas Piggin , =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Barrat?= Subject: [PATCH v3 1/8] ppc/pnv: Add pca9552 to powernv10 for PCIe hotplug power control Date: Tue, 14 Nov 2023 13:56:52 -0600 Message-Id: <20231114195659.1219821-2-milesg@linux.vnet.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20231114195659.1219821-1-milesg@linux.vnet.ibm.com> References: <20231114195659.1219821-1-milesg@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: QslWSjAiHaMBa-aWnEvHPZG9el8NsyEs X-Proofpoint-ORIG-GUID: xgrXh_AIF5wpx_MVF6kjwpTij2JUUw2k X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-14_20,2023-11-14_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 malwarescore=0 bulkscore=0 lowpriorityscore=0 priorityscore=1501 spamscore=0 suspectscore=0 impostorscore=0 mlxlogscore=720 adultscore=0 phishscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311140150 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: none client-ip=148.163.156.1; envelope-from=milesg@linux.vnet.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1699991925420100003 Content-Type: text/plain; charset="utf-8" The Power Hypervisor code expects to see a pca9552 device connected to the 3rd PNV I2C engine on port 1 at I2C address 0x63 (or left- justified address of 0xC6). This is used by hypervisor code to control PCIe slot power during hotplug events. Signed-off-by: Glenn Miles --- Based-on: <20231024181144.4045056-3-milesg@linux.vnet.ibm.com> [PATCH v3 2/2] misc/pca9552: Let external devices set pca9552 inputs No changes from v2 hw/ppc/Kconfig | 1 + hw/ppc/pnv.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig index 56f0475a8e..f77ca773cf 100644 --- a/hw/ppc/Kconfig +++ b/hw/ppc/Kconfig @@ -32,6 +32,7 @@ config POWERNV select XIVE select FDT_PPC select PCI_POWERNV + select PCA9552 =20 config PPC405 bool diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 9c29727337..7afaf1008f 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -1877,6 +1877,13 @@ static void pnv_chip_power10_realize(DeviceState *de= v, Error **errp) qdev_get_gpio_in(DEVICE(&chip10->psi), PSIHB9_IRQ_SBE_I2C)); } + + /* + * Add a PCA9552 I2C device for PCIe hotplug control + * to engine 2, bus 1, address 0x63 + */ + i2c_slave_create_simple(chip10->i2c[2].busses[1], "pca9552", 0x63); + } =20 static uint32_t pnv_chip_power10_xscom_pcba(PnvChip *chip, uint64_t addr) --=20 2.31.1