Port am335x usb driver to RTEMS.

Add FDT and umass support for am335x USB driver.

Now RTEMS can mount and open USB disk.

freebsd/sys/arm/ti/am335x/am335x_prcm.c

@@ -438,7 +438,9 @@ am335x_prcm_attach(device_t dev)
 	sc->bsh = rman_get_bushandle(sc->res[0]);
 
 	am335x_prcm_sc = sc;
+#ifndef __rtems__
 	ti_cpu_reset = am335x_prcm_reset;
+#endif /* __rtems__ */
 
 	if (am335x_clk_get_sysclk_freq(NULL, &sysclk) != 0)
 		sysclk = 0;

freebsd/sys/arm/ti/ti_cpuid.h

@@ -29,6 +29,9 @@
 
 #ifndef _TI_CPUID_H_
 #define	_TI_CPUID_H_
+#ifdef __rtems__
+#include <bsp.h>
+#endif /* __rtems__ */
 
 #define	OMAP_MAKEREV(d, a, b, c) \
 	(uint32_t)(((d) << 16) | (((a) & 0xf) << 8) | (((b) & 0xf) << 4) | ((c) & 0xf))
@@ -70,7 +73,23 @@
 #define	CHIP_OMAP_4	0
 #define	CHIP_AM335X	1
 
+#ifdef __rtems__
+#ifdef IS_AM335X
+#define SOC_TI_AM335X
+#else
+#warning Unknown SOC.
+#endif
+
+#if defined(SOC_TI_AM335X)
+#define _ti_chip CHIP_AM335X
+#elif defined(SOC_OMAP4)
+#define _ti_chip CHIP_OMAP_4
+#else
+#define _ti_chip -1
+#endif
+#else /* __rtems__ */
 extern int _ti_chip;
+#endif /* __rtems__ */
 
 static __inline int ti_chip(void)
 {

libbsd.py

@@ -889,6 +889,39 @@ def dev_usb_storage_add_on(mm):
     )
     return mod
 
+#
+# BBB USB
+#
+def dev_usb_controller_bbb(mm):
+    mod = builder.Module('dev_usb_controller_bbb')
+    mod.addDependency(mm['dev_usb'])
+    mod.addKernelSpaceHeaderFiles(
+        [
+            'sys/arm/ti/ti_cpuid.h',
+            'sys/arm/ti/ti_prcm.h',
+            'sys/arm/ti/ti_scm.h',
+            'sys/arm/ti/tivar.h',
+            'sys/arm/ti/am335x/am335x_scm.h',
+            'sys/dev/usb/controller/musb_otg.h',
+            'sys/sys/timeet.h',
+            'sys/sys/watchdog.h',
+            'sys/dev/fdt/fdt_pinctrl.h',
+
+        ]
+    )
+    mod.addKernelSpaceSourceFiles(
+        [
+            'sys/arm/ti/ti_scm.c',
+            'sys/arm/ti/am335x/am335x_prcm.c',
+            'sys/arm/ti/am335x/am335x_usbss.c',
+            'sys/arm/ti/ti_prcm.c',
+            'sys/arm/ti/am335x/am335x_musb.c',
+            'sys/dev/usb/controller/musb_otg.c',
+        ],
+        mm.generator['source']()
+    )
+    return mod
+
 #
 # USB Template
 #
@@ -3195,6 +3228,7 @@ def sources(mm):
     mm.addModule(cam(mm))
     mm.addModule(dev_usb_storage(mm))
     #mm.addModule(dev_usb_storage_add_on(mm))
+    mm.addModule(dev_usb_controller_bbb(mm))
 
     #mm.addModule(dev_usb_template(mm))
 

libbsd_waf.py

@@ -731,6 +731,11 @@ def build(bld):
 
     source = ['freebsd/sys/arm/lpc/if_lpe.c',
               'freebsd/sys/arm/lpc/lpc_pwr.c',
+              'freebsd/sys/arm/ti/am335x/am335x_musb.c',
+              'freebsd/sys/arm/ti/am335x/am335x_prcm.c',
+              'freebsd/sys/arm/ti/am335x/am335x_usbss.c',
+              'freebsd/sys/arm/ti/ti_prcm.c',
+              'freebsd/sys/arm/ti/ti_scm.c',
               'freebsd/sys/arm/xilinx/zy7_slcr.c',
               'freebsd/sys/cam/cam.c',
               'freebsd/sys/cam/scsi/scsi_all.c',
@@ -896,6 +901,7 @@ def build(bld):
               'freebsd/sys/dev/tsec/if_tsec_fdt.c',
               'freebsd/sys/dev/usb/controller/dwc_otg.c',
               'freebsd/sys/dev/usb/controller/ehci.c',
+              'freebsd/sys/dev/usb/controller/musb_otg.c',
               'freebsd/sys/dev/usb/controller/ohci.c',
               'freebsd/sys/dev/usb/controller/usb_controller.c',
               'freebsd/sys/dev/usb/input/atp.c',

rtemsbsd/include/bsp/nexus-devices.h

@@ -46,6 +46,20 @@
 
 RTEMS_BSD_DRIVER_SMC0(0x4e000000,  RVPBXA9_IRQ_ETHERNET);
 
+#elif defined(LIBBSP_ARM_BEAGLE_BSP_H)
+
+#include <bsp/irq.h>
+
+RTEMS_BSD_DEFINE_NEXUS_DEVICE(ofwbus, 0, 0, NULL);
+SYSINIT_DRIVER_REFERENCE(simplebus, ofwbus);
+SYSINIT_DRIVER_REFERENCE(ti_scm, simplebus);
+SYSINIT_DRIVER_REFERENCE(am335x_prcm, simplebus);
+SYSINIT_DRIVER_REFERENCE(usbss, simplebus);
+SYSINIT_DRIVER_REFERENCE(musbotg, usbss);
+
+RTEMS_BSD_DRIVER_USB;
+RTEMS_BSD_DRIVER_USB_MASS;
+
 #elif defined(LIBBSP_ARM_LPC32XX_BSP_H)
 
 #include <bsp/irq.h>