Commit 256dea91 authored by Ronak Jain's avatar Ronak Jain Committed by Jakub Kicinski
Browse files

firmware: xilinx: add support for sd/gem config 



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: default avatarRonak Jain <ronak.jain@xilinx.com>
Signed-off-by: default avatarRadhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Reviewed-by: default avatarClaudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 53ff2517

drivers/firmware/xilinx/zynqmp.c

+31 −0
Original line number Diff line number Diff line
@@ -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

include/linux/firmware/xlnx-zynqmp.h

+45 −0
Original line number Diff line number Diff line
@@ -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__ */