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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 --- 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 | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 7977a494a651..44c44077dfc5 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -1298,6 +1298,37 @@ int zynqmp_pm_get_feature_config(enum pm_feature_config_id id, } /** + * 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 * @name: Matching string for scope argument diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 1ec73d5352c3..063a93c133f1 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -152,6 +152,9 @@ 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 { @@ -393,6 +396,18 @@ enum pm_feature_config_id { PM_FEATURE_EXTWDT_VALUE = 4, }; +enum pm_sd_config_type { + SD_CONFIG_EMMC_SEL = 1, /* To set SD_EMMC_SEL in CTRL_REG_SD and SD_SLOTTYPE */ + SD_CONFIG_BASECLK = 2, /* To set SD_BASECLK in SD_CONFIG_REG1 */ + SD_CONFIG_8BIT = 3, /* To set SD_8BIT in SD_CONFIG_REG2 */ + SD_CONFIG_FIXED = 4, /* To set fixed config registers */ +}; + +enum pm_gem_config_type { + GEM_CONFIG_SGMII_MODE = 1, /* To set GEM_SGMII_MODE in GEM_CLK_CTRL register */ + GEM_CONFIG_FIXED = 2, /* To set fixed config registers */ +}; + /** * struct zynqmp_pm_query_data - PM query data * @qid: query ID @@ -468,6 +483,9 @@ int zynqmp_pm_feature(const u32 api_id); 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_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) { @@ -733,6 +751,21 @@ static inline int zynqmp_pm_get_feature_config(enum pm_feature_config_id id, { 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__ */ -- 2.1.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel