ARM: OMAP2+: create dsp device only on OMAP3 SoCs

The DSP platform device for TI DSP/Bridge is currently
created unconditionally whenever CONFIG_TIDSPBRIDGE is
enabled. This device should only be created on OMAP34xx/
OMAP36xx SoCs, and not for other OMAP3 derived SoCs or when
booting multi-arch images on other SoCs. So, add a check for
the SoC family both before creating the device and allocating
the carveout memory for the device.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/dsp.c b/arch/arm/mach-omap2/dsp.c
index b8208b4b1bd9..f7492df1cbba 100644
--- a/arch/arm/mach-omap2/dsp.c
+++ b/arch/arm/mach-omap2/dsp.c
@@ -29,6 +29,7 @@
 #ifdef CONFIG_TIDSPBRIDGE_DVFS
 #include "omap-pm.h"
 #endif
+#include "soc.h"
 
 #include <linux/platform_data/dsp-omap.h>
 
@@ -59,6 +60,9 @@ void __init omap_dsp_reserve_sdram_memblock(void)
         phys_addr_t size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
         phys_addr_t paddr;
 
+        if (!cpu_is_omap34xx())
+                return;
+
         if (!size)
                 return;
 
@@ -83,6 +87,9 @@ static int __init omap_dsp_init(void)
         int err = -ENOMEM;
         struct omap_dsp_platform_data *pdata = &omap_dsp_pdata;
 
+        if (!cpu_is_omap34xx())
+                return 0;
+
         pdata->phys_mempool_base = omap_dsp_get_mempool_base();
 
         if (pdata->phys_mempool_base) {
@@ -115,6 +122,9 @@ module_init(omap_dsp_init);
 
 static void __exit omap_dsp_exit(void)
 {
+        if (!cpu_is_omap34xx())
+                return;
+
         platform_device_unregister(omap_dsp_pdev);
 }
 module_exit(omap_dsp_exit);