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Wed, 14 Sep 2022 05:33:44 -0700 Envelope-to: git@amd.com, radhey.shyam.pandey@amd.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, gregkh@linuxfoundation.org, linux-arm-kernel@lists.infradead.org, andrew@lunn.ch, claudiu.beznea@microchip.com, conor.dooley@microchip.com, nicolas.ferre@microchip.com, pabeni@redhat.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Received: from [172.23.64.3] (port=50635 helo=xhdvnc103.xilinx.com) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1oYRaJ-0009Ng-TA; Wed, 14 Sep 2022 05:33:44 -0700 Received: by xhdvnc103.xilinx.com (Postfix, from userid 13245) id 153D61054C8; Wed, 14 Sep 2022 18:03:30 +0530 (IST) From: Radhey Shyam Pandey To: , , , , , , , , , CC: , , , , Ronak Jain , Radhey Shyam Pandey Subject: [PATCH v3 net-next 1/2] firmware: xilinx: add support for sd/gem config Date: Wed, 14 Sep 2022 18:03:15 +0530 Message-ID: <1663158796-14869-2-git-send-email-radhey.shyam.pandey@amd.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1663158796-14869-1-git-send-email-radhey.shyam.pandey@amd.com> References: <1663158796-14869-1-git-send-email-radhey.shyam.pandey@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM3NAM02FT026:EE_|DM6PR02MB7019:EE_ X-MS-Office365-Filtering-Correlation-Id: 0ee69ad9-0f6f-463e-8e4b-08da964d7a12 X-MS-Exchange-SenderADCheck: 0 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Sep 2022 12:34:32.9937 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0ee69ad9-0f6f-463e-8e4b-08da964d7a12 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c;Ip=[149.199.62.198];Helo=[xsj-pvapexch01.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: DM3NAM02FT026.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR02MB7019 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Ronak Jain Add new APIs in firmware to configure SD/GEM registers. Internally it calls PM IOCTL for below SD/GEM register configuration: - SD/EMMC select - SD slot type - SD base clock - SD 8 bit support - SD fixed config - GEM SGMII Mode - GEM fixed config Signed-off-by: Ronak Jain Signed-off-by: Radhey Shyam Pandey Reviewed-by: Claudiu Beznea --- - Changes for v3: Use enum kernel-doc comment style for enum pm_sd_config_type and pm_gem_config_type. - Changes for v2: Use tab indent for zynqmp_pm_set_sd/gem_config() return documentation --- drivers/firmware/xilinx/zynqmp.c | 31 +++++++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 45 ++++++++++++++++++++++++++++ 2 files changed, 76 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index d1f652802181..ff5cabe70a2b 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -1311,6 +1311,37 @@ int zynqmp_pm_get_feature_config(enum pm_feature_config_id id, id, 0, payload); } +/** + * zynqmp_pm_set_sd_config - PM call to set value of SD config registers + * @node: SD node ID + * @config: The config type of SD registers + * @value: Value to be set + * + * Return: Returns 0 on success or error value on failure. + */ +int zynqmp_pm_set_sd_config(u32 node, enum pm_sd_config_type config, u32 value) +{ + return zynqmp_pm_invoke_fn(PM_IOCTL, node, IOCTL_SET_SD_CONFIG, + config, value, NULL); +} +EXPORT_SYMBOL_GPL(zynqmp_pm_set_sd_config); + +/** + * zynqmp_pm_set_gem_config - PM call to set value of GEM config registers + * @node: GEM node ID + * @config: The config type of GEM registers + * @value: Value to be set + * + * Return: Returns 0 on success or error value on failure. + */ +int zynqmp_pm_set_gem_config(u32 node, enum pm_gem_config_type config, + u32 value) +{ + return zynqmp_pm_invoke_fn(PM_IOCTL, node, IOCTL_SET_GEM_CONFIG, + config, value, NULL); +} +EXPORT_SYMBOL_GPL(zynqmp_pm_set_gem_config); + /** * struct zynqmp_pm_shutdown_scope - Struct for shutdown scope * @subtype: Shutdown subtype diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 9f50dacbf7d6..76d2b3ebad84 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -153,6 +153,9 @@ enum pm_ioctl_id { /* Runtime feature configuration */ IOCTL_SET_FEATURE_CONFIG = 26, IOCTL_GET_FEATURE_CONFIG = 27, + /* Dynamic SD/GEM configuration */ + IOCTL_SET_SD_CONFIG = 30, + IOCTL_SET_GEM_CONFIG = 31, }; enum pm_query_id { @@ -399,6 +402,30 @@ enum pm_feature_config_id { PM_FEATURE_EXTWDT_VALUE = 4, }; +/** + * enum pm_sd_config_type - PM SD configuration. + * @SD_CONFIG_EMMC_SEL: To set SD_EMMC_SEL in CTRL_REG_SD and SD_SLOTTYPE + * @SD_CONFIG_BASECLK: To set SD_BASECLK in SD_CONFIG_REG1 + * @SD_CONFIG_8BIT: To set SD_8BIT in SD_CONFIG_REG2 + * @SD_CONFIG_FIXED: To set fixed config registers + */ +enum pm_sd_config_type { + SD_CONFIG_EMMC_SEL = 1, + SD_CONFIG_BASECLK = 2, + SD_CONFIG_8BIT = 3, + SD_CONFIG_FIXED = 4, +}; + +/** + * enum pm_gem_config_type - PM GEM configuration. + * @GEM_CONFIG_SGMII_MODE: To set GEM_SGMII_MODE in GEM_CLK_CTRL register + * @GEM_CONFIG_FIXED: To set fixed config registers + */ +enum pm_gem_config_type { + GEM_CONFIG_SGMII_MODE = 1, + GEM_CONFIG_FIXED = 2, +}; + /** * struct zynqmp_pm_query_data - PM query data * @qid: query ID @@ -475,6 +502,9 @@ int zynqmp_pm_is_function_supported(const u32 api_id, const u32 id); int zynqmp_pm_set_feature_config(enum pm_feature_config_id id, u32 value); int zynqmp_pm_get_feature_config(enum pm_feature_config_id id, u32 *payload); int zynqmp_pm_register_sgi(u32 sgi_num, u32 reset); +int zynqmp_pm_set_sd_config(u32 node, enum pm_sd_config_type config, u32 value); +int zynqmp_pm_set_gem_config(u32 node, enum pm_gem_config_type config, + u32 value); #else static inline int zynqmp_pm_get_api_version(u32 *version) { @@ -745,6 +775,21 @@ static inline int zynqmp_pm_register_sgi(u32 sgi_num, u32 reset) { return -ENODEV; } + +static inline int zynqmp_pm_set_sd_config(u32 node, + enum pm_sd_config_type config, + u32 value) +{ + return -ENODEV; +} + +static inline int zynqmp_pm_set_gem_config(u32 node, + enum pm_gem_config_type config, + u32 value) +{ + return -ENODEV; +} + #endif #endif /* __FIRMWARE_ZYNQMP_H__ */