[PATCH 1/6] ti_sci_*: Add utility to access tisci firmware and SOC capability
Moteen Shah
m-shah at ti.com
Wed May 28 10:05:14 CEST 2025
Introduce response and request structs for receiving information
regarding FW/SOC capability from DM. The received capability can
further be used to call API's based on the feature supported by
the DM firmware.
Signed-off-by: Moteen Shah <m-shah at ti.com>
---
drivers/firmware/ti_sci.h | 13 +++++++++++++
include/linux/soc/ti/ti_sci_protocol.h | 12 ++++++++++++
2 files changed, 25 insertions(+)
diff --git a/drivers/firmware/ti_sci.h b/drivers/firmware/ti_sci.h
index bb8bc7beead..f3d9eb453b4 100644
--- a/drivers/firmware/ti_sci.h
+++ b/drivers/firmware/ti_sci.h
@@ -26,6 +26,7 @@
#define TI_SCI_MSG_BOARD_CONFIG_RM 0x000c
#define TI_SCI_MSG_BOARD_CONFIG_SECURITY 0x000d
#define TI_SCI_MSG_BOARD_CONFIG_PM 0x000e
+#define TI_SCI_MSG_QUERY_FW_CAPS 0x0022
#define TISCI_MSG_QUERY_MSMC 0x0020
/* Device requests */
@@ -134,6 +135,18 @@ struct ti_sci_msg_resp_version {
u8 abi_minor;
} __packed;
+/**
+ * struct ti_sci_query_fw_caps_resp - Response for a message
+ * @hdr: Generic header
+ * @fw_caps: 64-bit value representing the FW/SOC capabilities.
+ *
+ * Response to a message with message type TI_SCI_MSG_QUERY_FW_CAPS
+ */
+struct ti_sci_query_fw_caps_resp {
+ struct ti_sci_msg_hdr hdr;
+ u64 fw_caps;
+} __packed;
+
/**
* struct ti_sci_msg_req_reboot - Reboot the SoC
* @hdr: Generic Header
diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h
index aa4d105ee98..05a19a8d86c 100644
--- a/include/linux/soc/ti/ti_sci_protocol.h
+++ b/include/linux/soc/ti/ti_sci_protocol.h
@@ -261,6 +261,17 @@ struct ti_sci_core_ops {
u64 *msmc_start, u64 *msmc_end);
};
+/**
+ * struct ti_sci_firmware_ops - DM firmware operations
+ * @query_dm_cap: Query the DM capabilities
+ */
+struct ti_sci_firmware_ops {
+ int (*query_dm_cap)(struct ti_sci_handle *handle,
+ u64 *dm_cap);
+};
+
+#define TI_SCI_MSG_FLAG_FW_CAP_DM 0x100
+
/**
* struct ti_sci_proc_ops - Processor specific operations.
*
@@ -609,6 +620,7 @@ struct ti_sci_ops {
struct ti_sci_dev_ops dev_ops;
struct ti_sci_clk_ops clk_ops;
struct ti_sci_core_ops core_ops;
+ struct ti_sci_firmware_ops fw_ops;
struct ti_sci_proc_ops proc_ops;
struct ti_sci_rm_core_ops rm_core_ops;
struct ti_sci_rm_ringacc_ops rm_ring_ops;
--
2.34.1
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