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LF-14885: drivers: firmware: imx: se: add ele-get-fw-version

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Adds a new API ELE_GET_FW_VERSION, to fetch the FW version and other
misc. details.

Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
This commit is contained in:
Pankaj Gupta 2025-04-22 02:17:39 +05:30 committed by Jason Liu
parent 934c85903f
commit 8406270373
3 changed files with 92 additions and 2 deletions
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55
drivers/firmware/imx/ele_base_msg.c
View File

@ -819,3 +819,58 @@ int ele_v2x_fw_authenticate(struct se_if_priv *priv, phys_addr_t addr)
exit:
return ret;
}
int ele_get_fw_version(struct se_if_priv *priv, u32 *fw_ver_word,
u32 *commit_sha1)
{
struct se_api_msg *tx_msg __free(kfree) = NULL;
struct se_api_msg *rx_msg __free(kfree) = NULL;
int ret = 0;
if (!priv) {
ret = -EINVAL;
goto exit;
}
tx_msg = kzalloc(ELE_GET_FW_VERSION_REQ_SZ, GFP_KERNEL);
if (!tx_msg) {
ret = -ENOMEM;
goto exit;
}
rx_msg = kzalloc(ELE_GET_FW_VERSION_RSP_SZ, GFP_KERNEL);
if (!rx_msg) {
ret = -ENOMEM;
goto exit;
}
ret = se_fill_cmd_msg_hdr(priv,
(struct se_msg_hdr *)&tx_msg->header,
ELE_GET_FW_VERSION_REQ,
ELE_GET_FW_VERSION_REQ_SZ,
true);
if (ret)
goto exit;
ret = ele_msg_send_rcv(priv->priv_dev_ctx,
tx_msg,
ELE_GET_FW_VERSION_REQ_SZ,
rx_msg,
ELE_GET_FW_VERSION_RSP_SZ);
if (ret < 0)
goto exit;
ret = se_val_rsp_hdr_n_status(priv,
rx_msg,
ELE_GET_FW_VERSION_REQ,
ELE_GET_FW_VERSION_RSP_SZ,
true);
if (ret)
goto exit;
*fw_ver_word = rx_msg->data[1];
*commit_sha1 = rx_msg->data[2];
exit:
return ret;
}

11
drivers/firmware/imx/ele_base_msg.h
View File

@ -84,6 +84,10 @@ struct ele_dev_info {
#define ELE_IMEM_EXPORT 0x1
#define ELE_IMEM_IMPORT 0x2
#define ELE_FW_GET_FWAUTH_REQ 0x02
#define ELE_FW_AUTH_REQ_SZ 0x10
#define ELE_FW_AUTH_RSP_MSG_SZ 0x08
#define ELE_FW_AUTH_REQ 0x02
#define ELE_FW_AUTH_REQ_SZ 0x10
#define ELE_FW_AUTH_RSP_MSG_SZ 0x08
@ -116,6 +120,10 @@ struct ele_dev_info {
#define ELE_V2X_FW_AUTH_REQ_SZ 0x10
#define ELE_V2X_FW_AUTH_RSP_MSG_SZ 0x08
#define ELE_GET_FW_VERSION_REQ 0x9d
#define ELE_GET_FW_VERSION_REQ_SZ 0x04
#define ELE_GET_FW_VERSION_RSP_SZ 0x10
int ele_get_info(struct se_if_priv *priv, struct ele_dev_info *s_info);
int ele_fetch_soc_info(struct se_if_priv *priv, void *data);
int ele_ping(struct se_if_priv *priv);
@ -132,5 +140,6 @@ int read_common_fuse(struct se_if_priv *priv,
u16 fuse_id, u32 *value);
int ele_get_v2x_fw_state(struct se_if_priv *priv, uint32_t *state);
int ele_v2x_fw_authenticate(struct se_if_priv *priv, phys_addr_t addr);
int ele_get_fw_version(struct se_if_priv *priv, u32 *fw_ver_word,
u32 *commit_sha1);
#endif

28
drivers/firmware/imx/se_ctrl.c
View File

@ -88,6 +88,8 @@ struct se_var_info {
u8 board_type;
u16 soc_id;
u16 soc_rev;
u32 fw_vers_word;
u32 commit_sha1;
struct se_fw_load_info load_fw;
};
@ -541,6 +543,20 @@ out:
return ret;
}
static bool runtime_fw_status(struct se_if_priv *priv)
{
/*
* Initializing to false as not sure if
* the run-time FW status can be fetched for the SoC.
*/
bool fw_prsnt_n_running = false;
if (get_se_soc_id(priv) == SOC_ID_OF_IMX95)
fw_prsnt_n_running =
(var_se_info.fw_vers_word & 0x1000000) ? true : false;
return fw_prsnt_n_running;
}
/*
* get_se_soc_id() - to fetch the soc_id of the platform
*
@ -619,6 +635,11 @@ static int se_soc_info(struct se_if_priv *priv)
if (var_se_info.soc_rev)
return err;
err = ele_get_fw_version(priv, &var_se_info.fw_vers_word,
&var_se_info.commit_sha1);
if (err)
dev_err(priv->dev, "Failed to fetch FW version");
if (info_list->se_fetch_soc_info) {
err = info_list->se_fetch_soc_info(priv, &data);
if (err < 0) {
@ -752,6 +773,11 @@ static int se_load_firmware(struct se_if_priv *priv)
} while (se_img_file_to_load);
ret = ele_get_fw_version(priv, &var_se_info.fw_vers_word,
&var_se_info.commit_sha1);
if (ret)
dev_err(priv->dev, "Failed to fetch FW version");
if (!ret)
load_fw->is_fw_loaded = true;
@ -2024,7 +2050,7 @@ static int se_if_probe(struct platform_device *pdev)
info_list->se_fw_img_nm.seco_fw_nm_in_rfs) {
load_fw = get_load_fw_instance(priv);
load_fw->se_fw_img_nm = &info_list->se_fw_img_nm;
load_fw->is_fw_loaded = false;
load_fw->is_fw_loaded = runtime_fw_status(priv);
if (info_list->se_fw_img_nm.prim_fw_nm_in_rfs) {
/* allocate buffer where SE store encrypted IMEM */