+/* Subcommand: GO */
+static void boot_jump_linux(bootm_headers_t *images)
+{
+ unsigned long machid = gd->bd->bi_arch_number;
+ char *s;
+ void (*kernel_entry)(int zero, int arch, uint params);
+ unsigned long r2;
+
+ kernel_entry = (void (*)(int, int, uint))images->ep;
+
+ s = getenv("machid");
+ if (s) {
+ strict_strtoul(s, 16, &machid);
+ printf("Using machid 0x%lx from environment\n", machid);
+ }
+
+ debug("## Transferring control to Linux (at address %08lx)" \
+ "...\n", (ulong) kernel_entry);
+ bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+ announce_and_cleanup();
+
+#ifdef CONFIG_OF_LIBFDT
+ if (images->ft_len)
+ r2 = (unsigned long)images->ft_addr;
+ else
+#endif
+ r2 = gd->bd->bi_boot_params;
+
+ kernel_entry(0, machid, r2);
+}
+
+/* Main Entry point for arm bootm implementation
+ *
+ * Modeled after the powerpc implementation
+ * DIFFERENCE: Instead of calling prep and go at the end
+ * they are called if subcommand is equal 0.
+ */
+int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+{
+ /* No need for those on ARM */
+ if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE)
+ return -1;
+
+ if (flag & BOOTM_STATE_OS_PREP) {
+ boot_prep_linux(images);
+ return 0;
+ }
+
+ if (flag & BOOTM_STATE_OS_GO) {
+ boot_jump_linux(images);
+ return 0;
+ }
+
+ boot_prep_linux(images);
+ boot_jump_linux(images);
+ return 0;
+}
+
+#ifdef CONFIG_CMD_BOOTZ
+
+struct zimage_header {
+ uint32_t code[9];
+ uint32_t zi_magic;
+ uint32_t zi_start;
+ uint32_t zi_end;
+};
+
+#define LINUX_ARM_ZIMAGE_MAGIC 0x016f2818
+
+int bootz_setup(void *image, void **start, void **end)
+{
+ struct zimage_header *zi = (struct zimage_header *)image;
+
+ if (zi->zi_magic != LINUX_ARM_ZIMAGE_MAGIC) {
+ puts("Bad Linux ARM zImage magic!\n");
+ return 1;
+ }
+
+ *start = (void *)zi->zi_start;
+ *end = (void *)zi->zi_end;
+
+ debug("Kernel image @ 0x%08x [ 0x%08x - 0x%08x ]\n",
+ (uint32_t)image, (uint32_t)*start, (uint32_t)*end);
+
+ return 0;
+}
+#endif /* CONFIG_CMD_BOOTZ */