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Commit 4980f465 authored by Juan Gutierrez's avatar Juan Gutierrez Committed by Ohad Ben-Cohen
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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: default avatarJuan Gutierrez <jgutierrez@ti.com>
Signed-off-by: default avatarSuman Anna <s-anna@ti.com>
[ohad: slight changes to the commit log]
Signed-off-by: default avatarOhad Ben-Cohen <ohad@wizery.com>
parent 55d512e2

arch/arm/plat-omap/include/plat/remoteproc.h

+2 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ struct platform_device; 
 * @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 @@ struct omap_rproc_pdata { 
	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)

drivers/remoteproc/omap_remoteproc.c

+3 −0
Original line number Diff line number Diff line
@@ -116,6 +116,9 @@ static int omap_rproc_start(struct rproc *rproc) 
	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 */