Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / microblaze / lib / bootm.c

diff --git a/qemu/roms/u-boot/arch/microblaze/lib/bootm.c b/qemu/roms/u-boot/arch/microblaze/lib/bootm.c
new file mode 100644 (file)
index 0000000..d60b307
--- /dev/null
+++ b/qemu/roms/u-boot/arch/microblaze/lib/bootm.c
@@ -0,0 +1,85 @@
+/*
+ * (C) Copyright 2007 Michal Simek
+ * (C) Copyright 2004 Atmark Techno, Inc.
+ *
+ * Michal  SIMEK <monstr@monstr.eu>
+ * Yasushi SHOJI <yashi@atmark-techno.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <u-boot/zlib.h>
+#include <asm/byteorder.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int do_bootm_linux(int flag, int argc, char * const argv[],
+                  bootm_headers_t *images)
+{
+       /* First parameter is mapped to $r5 for kernel boot args */
+       void    (*thekernel) (char *, ulong, ulong);
+       char    *commandline = getenv("bootargs");
+       ulong   rd_data_start, rd_data_end;
+
+       /*
+        * allow the PREP bootm subcommand, it is required for bootm to work
+        */
+       if (flag & BOOTM_STATE_OS_PREP)
+               return 0;
+
+       if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
+               return 1;
+
+       int     ret;
+
+       char    *of_flat_tree = NULL;
+#if defined(CONFIG_OF_LIBFDT)
+       /* did generic code already find a device tree? */
+       if (images->ft_len)
+               of_flat_tree = images->ft_addr;
+#endif
+
+       thekernel = (void (*)(char *, ulong, ulong))images->ep;
+
+       /* find ramdisk */
+       ret = boot_get_ramdisk(argc, argv, images, IH_ARCH_MICROBLAZE,
+                       &rd_data_start, &rd_data_end);
+       if (ret)
+               return 1;
+
+       bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+
+       if (!of_flat_tree && argc > 1)
+               of_flat_tree = (char *)simple_strtoul(argv[1], NULL, 16);
+
+       /* fixup the initrd now that we know where it should be */
+       if (images->rd_start && images->rd_end && of_flat_tree)
+               ret = fdt_initrd(of_flat_tree, images->rd_start,
+                                images->rd_end, 1);
+               if (ret)
+                       return 1;
+
+#ifdef DEBUG
+       printf("## Transferring control to Linux (at address 0x%08lx) ",
+              (ulong)thekernel);
+       printf("ramdisk 0x%08lx, FDT 0x%08lx...\n",
+              rd_data_start, (ulong) of_flat_tree);
+#endif
+
+#ifdef XILINX_USE_DCACHE
+       flush_cache(0, XILINX_DCACHE_BYTE_SIZE);
+#endif
+       /*
+        * Linux Kernel Parameters (passing device tree):
+        * r5: pointer to command line
+        * r6: pointer to ramdisk
+        * r7: pointer to the fdt, followed by the board info data
+        */
+       thekernel(commandline, rd_data_start, (ulong)of_flat_tree);
+       /* does not return */
+
+       return 1;
+}