common/cmd_bootm: extend do_bootm_vxworks to support the new VxWorks boot interface.

The next version VxWorks adopts device tree (for PowerPC and ARM) as its hardware
description mechanism. For PowerPC, the boot interface conforms to
the ePAPR standard, which is:

   void (*kernel_entry)(ulong fdt_addr,
          ulong r4 /* 0 */,
          ulong r5 /* 0 */,
          ulong r6 /* EPAPR_MAGIC */, ulong r7 /* IMA size */,
          ulong r8 /* 0 */, ulong r9 /* 0 */)

For ARM, the boot interface is:

   void (*kernel_entry)(void *fdt_addr)

Signed-off-by: Miao Yan <miao.yan@windriver.com>
[trini: Fix build error when !CONFIG_OF_FDT is set, typo on PowerPC,
missing extern ft_fixup_num_cores]
Signed-off-by: Tom Rini <trini@ti.com>

1 files changed, 69 insertions, 12 deletions

diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 56d53b15c0..3f576594d1 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -23,6 +23,11 @@
 #include <asm/io.h>
 #include <linux/compiler.h>
 
+#if defined(CONFIG_BOOTM_VXWORKS) && \
+	(defined(CONFIG_PPC) || defined(CONFIG_ARM))
+#include <vxworks.h>
+#endif
+
 #if defined(CONFIG_CMD_USB)
 #include <usb.h>
 #endif
@@ -120,7 +125,8 @@ static boot_os_fn do_bootm_ose;
 #if defined(CONFIG_BOOTM_PLAN9)
 static boot_os_fn do_bootm_plan9;
 #endif
-#if defined(CONFIG_BOOTM_VXWORKS)
+#if defined(CONFIG_BOOTM_VXWORKS) && \
+	(defined(CONFIG_PPC) || defined(CONFIG_ARM))
 static boot_os_fn do_bootm_vxworks;
 #endif
 #if defined(CONFIG_CMD_ELF)
@@ -151,7 +157,8 @@ static boot_os_fn *boot_os[] = {
 #if defined(CONFIG_BOOTM_PLAN9)
 	[IH_OS_PLAN9] = do_bootm_plan9,
 #endif
-#if defined(CONFIG_BOOTM_VXWORKS)
+#if defined(CONFIG_BOOTM_VXWORKS) && \
+	(defined(CONFIG_PPC) || defined(CONFIG_ARM))
 	[IH_OS_VXWORKS] = do_bootm_vxworks,
 #endif
 #if defined(CONFIG_CMD_ELF)
@@ -337,7 +344,8 @@ static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
 	if (((images.os.type == IH_TYPE_KERNEL) ||
 	     (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 	     (images.os.type == IH_TYPE_MULTI)) &&
-	    (images.os.os == IH_OS_LINUX)) {
+	    (images.os.os == IH_OS_LINUX ||
+		 images.os.os == IH_OS_VXWORKS)) {
 		if (bootm_find_ramdisk(flag, argc, argv))
 			return 1;
 
@@ -1682,12 +1690,66 @@ static int do_bootm_plan9(int flag, int argc, char * const argv[],
 }
 #endif /* CONFIG_BOOTM_PLAN9 */
 
-#if defined(CONFIG_BOOTM_VXWORKS)
+#if defined(CONFIG_BOOTM_VXWORKS) && \
+	(defined(CONFIG_PPC) || defined(CONFIG_ARM))
+
+void do_bootvx_fdt(bootm_headers_t *images)
+{
+#if defined(CONFIG_OF_LIBFDT)
+	int ret;
+	char *bootline;
+	ulong of_size = images->ft_len;
+	char **of_flat_tree = &images->ft_addr;
+	struct lmb *lmb = &images->lmb;
+
+	if (*of_flat_tree) {
+		boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree);
+
+		ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
+		if (ret)
+			return;
+
+		ret = fdt_add_subnode(*of_flat_tree, 0, "chosen");
+		if ((ret >= 0 || ret == -FDT_ERR_EXISTS)) {
+			bootline = getenv("bootargs");
+			if (bootline) {
+				ret = fdt_find_and_setprop(*of_flat_tree,
+						"/chosen", "bootargs",
+						bootline,
+						strlen(bootline) + 1, 1);
+				if (ret < 0) {
+					printf("## ERROR: %s : %s\n", __func__,
+					       fdt_strerror(ret));
+					return;
+				}
+			}
+		} else {
+			printf("## ERROR: %s : %s\n", __func__,
+			       fdt_strerror(ret));
+			return;
+		}
+	}
+#endif
+
+	boot_prep_vxworks(images);
+
+	bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+
+#if defined(CONFIG_OF_LIBFDT)
+	printf("## Starting vxWorks at 0x%08lx, device tree at 0x%08lx ...\n",
+	       (ulong)images->ep, (ulong)*of_flat_tree);
+#else
+	printf("## Starting vxWorks at 0x%08lx\n", (ulong)images->ep);
+#endif
+
+	boot_jump_vxworks(images);
+
+	puts("## vxWorks terminated\n");
+}
+
 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
 			     bootm_headers_t *images)
 {
-	char str[80];
-
 	if (flag != BOOTM_STATE_OS_GO)
 		return 0;
 
@@ -1698,12 +1760,7 @@ static int do_bootm_vxworks(int flag, int argc, char * const argv[],
 	}
 #endif
 
-	sprintf(str, "%lx", images->ep); /* write entry-point into string */
-	setenv("loadaddr", str);
-
-#if defined(CONFIG_CMD_ELF)
-	do_bootvx(NULL, 0, 0, NULL);
-#endif
+	do_bootvx_fdt(images);
 
 	return 1;
 }