diff options
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/k3_system_controller.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/remoteproc/k3_system_controller.c b/drivers/remoteproc/k3_system_controller.c index 89cb90207d..e2affe69c6 100644 --- a/drivers/remoteproc/k3_system_controller.c +++ b/drivers/remoteproc/k3_system_controller.c @@ -77,14 +77,18 @@ struct k3_sysctrler_desc { * struct k3_sysctrler_privdata - Structure representing System Controller data. * @chan_tx: Transmit mailbox channel * @chan_rx: Receive mailbox channel + * @chan_boot_notify: Boot notification channel * @desc: SoC description for this instance * @seq_nr: Counter for number of messages sent. + * @has_boot_notify: Has separate boot notification channel */ struct k3_sysctrler_privdata { struct mbox_chan chan_tx; struct mbox_chan chan_rx; + struct mbox_chan chan_boot_notify; struct k3_sysctrler_desc *desc; u32 seq_nr; + bool has_boot_notify; }; static inline @@ -223,7 +227,8 @@ static int k3_sysctrler_start(struct udevice *dev) debug("%s(dev=%p)\n", __func__, dev); /* Receive the boot notification. Note that it is sent only once. */ - ret = mbox_recv(&priv->chan_rx, &msg, priv->desc->max_rx_timeout_us); + ret = mbox_recv(priv->has_boot_notify ? &priv->chan_boot_notify : + &priv->chan_rx, &msg, priv->desc->max_rx_timeout_us); if (ret) { dev_err(dev, "%s: Boot Notification response failed. ret = %d\n", __func__, ret); @@ -272,6 +277,19 @@ static int k3_of_to_priv(struct udevice *dev, return ret; } + /* Some SoCs may have a optional channel for boot notification. */ + priv->has_boot_notify = 1; + ret = mbox_get_by_name(dev, "boot_notify", &priv->chan_boot_notify); + if (ret == -ENODATA) { + dev_dbg(dev, "%s: Acquiring optional Boot_notify failed. ret = %d. Using Rx\n", + __func__, ret); + priv->has_boot_notify = 0; + } else if (ret) { + dev_err(dev, "%s: Acquiring boot_notify channel failed. ret = %d\n", + __func__, ret); + return ret; + } + return 0; } |