#define DSP_RPROC_CLK_MAX 5
+/*
+ * Module parameters
+ */
+static unsigned int no_mailboxes;
+module_param_named(no_mailboxes, no_mailboxes, int, 0644);
+MODULE_PARM_DESC(no_mailboxes,
+ "There is no mailbox between cores, so ignore remote proc reply after start, default is 0 (off).");
+
#define REMOTE_IS_READY BIT(0)
#define REMOTE_READY_WAIT_MAX_RETRIES 500
{ 0x30000000, 0x90000000, 0x10000000, 0},
};
+/* Initialize the mailboxes between cores, if exists */
+static int (*imx_dsp_rproc_mbox_init)(struct imx_dsp_rproc *priv);
+
/* Reset function for DSP on i.MX8MP */
static int imx8mp_dsp_reset(struct imx_dsp_rproc *priv)
{
}
/**
- * imx_dsp_rproc_mbox_init() - request mailbox channels
+ * imx_dsp_rproc_mbox_alloc() - request mailbox channels
* @priv: private data pointer
*
* Request three mailbox channels (tx, rx, rxdb).
*/
-static int imx_dsp_rproc_mbox_init(struct imx_dsp_rproc *priv)
+static int imx_dsp_rproc_mbox_alloc(struct imx_dsp_rproc *priv)
{
struct device *dev = priv->rproc->dev.parent;
struct mbox_client *cl;
return ret;
}
+/*
+ * imx_dsp_rproc_mbox_no_alloc()
+ *
+ * Empty function for no mailbox between cores
+ *
+ * Always return 0
+ */
+static int imx_dsp_rproc_mbox_no_alloc(struct imx_dsp_rproc *priv)
+{
+ return 0;
+}
+
static void imx_dsp_rproc_free_mbox(struct imx_dsp_rproc *priv)
{
mbox_free_channel(priv->tx_ch);
priv->rproc = rproc;
priv->dsp_dcfg = dsp_dcfg;
+ if (no_mailboxes)
+ imx_dsp_rproc_mbox_init = imx_dsp_rproc_mbox_no_alloc;
+ else
+ imx_dsp_rproc_mbox_init = imx_dsp_rproc_mbox_alloc;
+
dev_set_drvdata(dev, rproc);
INIT_WORK(&priv->rproc_work, imx_dsp_rproc_vq_work);