remoteproc/omap: set bootaddr support
Some remote processors (like OMAP4's DSP) require we explicitly
set a boot address from which they'd start executing code when
taken out of reset.
Support for this is now being added to the omap-specific remoteproc
driver through a set_bootaddr function in the platform data which,
if needed, must be set according to the backend remote processor.
For OMAP4's dsp we can use the following control function:
.set_bootaddr = omap_ctrl_write_dsp_boot_addr
Signed-off-by: Juan Gutierrez <jgutierrez@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
[ohad: slight changes to the commit log]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
diff --git a/arch/arm/plat-omap/include/plat/remoteproc.h b/arch/arm/plat-omap/include/plat/remoteproc.h
index b10eac8..3c1c644 100644
--- a/arch/arm/plat-omap/include/plat/remoteproc.h
+++ b/arch/arm/plat-omap/include/plat/remoteproc.h
@@ -30,6 +30,7 @@
* @ops: start/stop rproc handlers
* @device_enable: omap-specific handler for enabling a device
* @device_shutdown: omap-specific handler for shutting down a device
+ * @set_bootaddr: omap-specific handler for setting the rproc boot address
*/
struct omap_rproc_pdata {
const char *name;
@@ -40,6 +41,7 @@
const struct rproc_ops *ops;
int (*device_enable) (struct platform_device *pdev);
int (*device_shutdown) (struct platform_device *pdev);
+ void(*set_bootaddr)(u32);
};
#if defined(CONFIG_OMAP_REMOTEPROC) || defined(CONFIG_OMAP_REMOTEPROC_MODULE)
diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c
index a1f7ac1..a0c168c 100644
--- a/drivers/remoteproc/omap_remoteproc.c
+++ b/drivers/remoteproc/omap_remoteproc.c
@@ -116,6 +116,9 @@
struct omap_rproc_pdata *pdata = pdev->dev.platform_data;
int ret;
+ if (pdata->set_bootaddr)
+ pdata->set_bootaddr(rproc->bootaddr);
+
oproc->nb.notifier_call = omap_rproc_mbox_callback;
/* every omap rproc is assigned a mailbox instance for messaging */