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Wed, 12 Jun 2024 15:52:44 -0700 From: Liming Sun To: Adrian Hunter , Ulf Hansson , David Thompson CC: Liming Sun , , Subject: [PATCH v1 0/2] eMMC RST_N support on BlueField-2 SoC Date: Wed, 12 Jun 2024 18:52:36 -0400 Message-ID: X-Mailer: git-send-email 2.30.1 Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF00021F6C:EE_|MN0PR12MB6199:EE_ X-MS-Office365-Filtering-Correlation-Id: f91033a4-6645-41f5-c017-08dc8b326d2f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230034|376008|1800799018|82310400020|36860700007; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230034)(376008)(1800799018)(82310400020)(36860700007);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jun 2024 22:53:07.4364 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f91033a4-6645-41f5-c017-08dc8b326d2f X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF00021F6C.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB6199 The dw_mmc driver supports eMMC RST_N recovery flow but doesn't work on BlueField-2 SoC because the RST_N register is designed as secure register. This patch series enhance the dw_mci_drv_data structure to support platform-specific hw_reset(), then implements this function in dw_mmc-bluefield.c to support RST_N via SMC call. Liming Sun (2): dw_mmc: support platform specific hw_reset() dw_mmc-bluefield: add hw_reset() support drivers/mmc/host/dw_mmc-bluefield.c | 18 +++++++++++++++++- drivers/mmc/host/dw_mmc.c | 6 ++++++ drivers/mmc/host/dw_mmc.h | 2 ++ 3 files changed, 25 insertions(+), 1 deletion(-)