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| author | Michal Simek <michal.simek@xilinx.com> | 2022-02-07 10:27:37 +0100 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2022-02-15 13:01:42 +0100 |
| commit | e0283cbdfd49a437ef3cfdd662b196d2f70b5ea0 (patch) | |
| tree | d845cd6b699bc029289a76bda1d065234a24c1ba /include | |
| parent | 2f9dd4bfc7a2d618c9c76448dd7b3ce67c6ec4ce (diff) | |
| download | u-boot-e0283cbdfd49a437ef3cfdd662b196d2f70b5ea0.zip u-boot-e0283cbdfd49a437ef3cfdd662b196d2f70b5ea0.tar.gz u-boot-e0283cbdfd49a437ef3cfdd662b196d2f70b5ea0.tar.bz2 | |
power: zynqmp: Add power domain driver for ZynqMP
Driver should be enabled by CONFIG_POWER_DOMAIN=y and
CONFIG_ZYNQMP_POWER_DOMAIN=y. Power domain driver doesn't have own DT node
but it uses zynqmp firmware DT node that's why there is a need to bind
driver when firmware node is found.
Driver itself is simple. It is sending pmufw config object overlay for
enabling access to device which is done in ...domain_request().
In ...domain_on() capabilities are passed and node is requested.
This should be bare minimum of required to get power domain driver working.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Link: https://lore.kernel.org/r/f4b9433b91c0b18c375b061c7a4e29d428f70547.1644226055.git.michal.simek@xilinx.com
Diffstat (limited to 'include')
| -rw-r--r-- | include/zynqmp_firmware.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/zynqmp_firmware.h b/include/zynqmp_firmware.h index cfd92d3..19c004e 100644 --- a/include/zynqmp_firmware.h +++ b/include/zynqmp_firmware.h @@ -371,4 +371,35 @@ void zynqmp_pmufw_load_config_object(const void *cfg_obj, size_t size); int xilinx_pm_request(u32 api_id, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 *ret_payload); +/* Type of Config Object */ +#define PM_CONFIG_OBJECT_TYPE_BASE 0x1U +#define PM_CONFIG_OBJECT_TYPE_OVERLAY 0x2U + +/* Section Id */ +#define PM_CONFIG_SLAVE_SECTION_ID 0x102U +#define PM_CONFIG_SET_CONFIG_SECTION_ID 0x107U + +/* Flag Option */ +#define PM_SLAVE_FLAG_IS_SHAREABLE 0x1U +#define PM_MASTER_USING_SLAVE_MASK 0x2U + +/* IPI Mask for Master */ +#define PM_CONFIG_IPI_PSU_CORTEXA53_0_MASK 0x00000001 +#define PM_CONFIG_IPI_PSU_CORTEXR5_0_MASK 0x00000100 +#define PM_CONFIG_IPI_PSU_CORTEXR5_1_MASK 0x00000200 + +enum zynqmp_pm_request_ack { + ZYNQMP_PM_REQUEST_ACK_NO = 1, + ZYNQMP_PM_REQUEST_ACK_BLOCKING = 2, + ZYNQMP_PM_REQUEST_ACK_NON_BLOCKING = 3, +}; + +/* Node capabilities */ +#define ZYNQMP_PM_CAPABILITY_ACCESS 0x1U +#define ZYNQMP_PM_CAPABILITY_CONTEXT 0x2U +#define ZYNQMP_PM_CAPABILITY_WAKEUP 0x4U +#define ZYNQMP_PM_CAPABILITY_UNUSABLE 0x8U + +#define ZYNQMP_PM_MAX_QOS 100U + #endif /* _ZYNQMP_FIRMWARE_H_ */ |