Add support for booting of INTEGRITY operating system uImages

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

README

@@ -3030,8 +3030,9 @@ details; basically, the header defines the following image properties:
 
 * Target Operating System (Provisions for OpenBSD, NetBSD, FreeBSD,
   4.4BSD, Linux, SVR4, Esix, Solaris, Irix, SCO, Dell, NCR, VxWorks,
-  LynxOS, pSOS, QNX, RTEMS;
-  Currently supported: Linux, NetBSD, VxWorks, QNX, RTEMS, LynxOS).
+  LynxOS, pSOS, QNX, RTEMS, INTEGRITY;
+  Currently supported: Linux, NetBSD, VxWorks, QNX, RTEMS, LynxOS,
+  INTEGRITY).
 * Target CPU Architecture (Provisions for Alpha, ARM, AVR32, Intel x86,
   IA64, MIPS, NIOS, PowerPC, IBM S390, SuperH, Sparc, Sparc 64 Bit;
   Currently supported: ARM, AVR32, Intel x86, MIPS, NIOS, PowerPC).

common/cmd_bootm.c

@@ -108,6 +108,9 @@ static boot_os_fn do_bootm_qnxelf;
 int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 #endif
+#if defined(CONFIG_INTEGRITY)
+static boot_os_fn do_bootm_integrity;
+#endif
 
 ulong load_addr = CFG_LOAD_ADDR;	/* Default Load Address */
 static bootm_headers_t images;		/* pointers to os/initrd/fdt images */
@@ -452,6 +455,11 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	    break;
 #endif
 
+#ifdef CONFIG_INTEGRITY
+	case IH_OS_INTEGRITY:
+	    do_bootm_integrity (0, argc, argv, &images);
+	    break;
+#endif
 	}
 
 	show_boot_progress (-9);
@@ -1144,3 +1152,33 @@ static int do_bootm_qnxelf(int flag, int argc, char *argv[],
 	return 1;
 }
 #endif
+
+#ifdef CONFIG_INTEGRITY
+static int do_bootm_integrity (int flag, int argc, char *argv[],
+			   bootm_headers_t *images)
+{
+	void (*entry_point)(void);
+
+#if defined(CONFIG_FIT)
+	if (!images->legacy_hdr_valid) {
+		fit_unsupported_reset ("INTEGRITY");
+		return 1;
+	}
+#endif
+
+	entry_point = (void (*)(void))images->ep;
+
+	printf ("## Transferring control to INTEGRITY (at address %08lx) ...\n",
+		(ulong)entry_point);
+
+	show_boot_progress (15);
+
+	/*
+	 * INTEGRITY Parameters:
+	 *   None
+	 */
+	(*entry_point)();
+
+	return 1;
+}
+#endif

common/image.c

@@ -116,6 +116,9 @@ static table_entry_t uimage_os[] = {
 	{	IH_OS_QNX,	"qnx",		"QNX",			},
 	{	IH_OS_VXWORKS,	"vxworks",	"VxWorks",		},
 #endif
+#if defined(CONFIG_INTEGRITY) || defined(USE_HOSTCC)
+	{	IH_OS_INTEGRITY,"integrity",	"INTEGRITY",		},
+#endif
 #ifdef USE_HOSTCC
 	{	IH_OS_4_4BSD,	"4_4bsd",	"4_4BSD",		},
 	{	IH_OS_DELL,	"dell",		"Dell",			},

doc/uImage.FIT/source_file_format.txt

@@ -169,7 +169,7 @@ the '/images' node should have the following layout:
   - os : OS name, mandatory for type="kernel", valid OS names are: "openbsd",
     "netbsd", "freebsd", "4_4bsd", "linux", "svr4", "esix", "solaris", "irix",
     "sco", "dell", "ncr", "lynxos", "vxworks", "psos", "qnx", "u_boot",
-    "rtems", "unity".
+    "rtems", "unity", "integrity".
   - arch : Architecture name, mandatory for types: "standalone", "kernel",
     "firmware", "ramdisk" and "fdt". Valid architecture names are: "alpha",
     "arm", "i386", "ia64", "mips", "mips64", "ppc", "s390", "sh", "sparc",

include/image.h

@@ -85,6 +85,7 @@
 #define IH_OS_RTEMS		18	/* RTEMS	*/
 #define IH_OS_ARTOS		19	/* ARTOS	*/
 #define IH_OS_UNITY		20	/* Unity OS	*/
+#define IH_OS_INTEGRITY		21	/* INTEGRITY	*/
 
 /*
  * CPU Architecture Codes (supported by Linux)