From: Juan Gutierrez Date: Wed, 15 Aug 2012 15:25:48 +0000 (-0500) Subject: remoteproc/omap: set bootaddr support X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4980f465d21400303b234bcc3d082916f19f11ff;p=linux-beck.git 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 Signed-off-by: Suman Anna [ohad: slight changes to the commit log] Signed-off-by: Ohad Ben-Cohen --- diff --git a/arch/arm/plat-omap/include/plat/remoteproc.h b/arch/arm/plat-omap/include/plat/remoteproc.h index b10eac89e2e9..3c1c6444ec4b 100644 --- a/arch/arm/plat-omap/include/plat/remoteproc.h +++ b/arch/arm/plat-omap/include/plat/remoteproc.h @@ -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) diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c index a1f7ac1f8cf6..a0c168cde90d 100644 --- a/drivers/remoteproc/omap_remoteproc.c +++ b/drivers/remoteproc/omap_remoteproc.c @@ -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 */