Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / sh / lib / zimageboot.c

diff --git a/qemu/roms/u-boot/arch/sh/lib/zimageboot.c b/qemu/roms/u-boot/arch/sh/lib/zimageboot.c
new file mode 100644 (file)
index 0000000..86d3998
--- /dev/null
+++ b/qemu/roms/u-boot/arch/sh/lib/zimageboot.c
@@ -0,0 +1,64 @@
+/*
+ * (C) Copyright 2010
+ *   Renesas Solutions Corp.
+ *   Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+/*
+ * Linux SuperH zImage loading and boot
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/zimage.h>
+
+int do_sh_zimageboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       ulong (*zboot_entry)(int, char * const []) = NULL;
+       char *s0, *s1;
+       unsigned char *param = NULL;
+       char *cmdline;
+       char *bootargs;
+
+       disable_interrupts();
+
+       if (argc >= 3) {
+               /* argv[1] holds the address of the zImage */
+               s0 = argv[1];
+               /* argv[2] holds the address of zero page */
+               s1 = argv[2];
+       } else {
+               goto exit;
+       }
+
+       if (s0)
+               zboot_entry = (ulong (*)(int, char * const []))simple_strtoul(s0, NULL, 16);
+
+       /* empty_zero_page */
+       if (s1)
+               param = (unsigned char*)simple_strtoul(s1, NULL, 16);
+
+       /* Linux kernel command line */
+       cmdline = (char *)param + COMMAND_LINE;
+       bootargs = getenv("bootargs");
+
+       /* Clear zero page */
+       memset(param, 0, 0x1000);
+
+       /* Set commandline */
+       strcpy(cmdline, bootargs);
+
+       /* Boot */
+       zboot_entry(0, NULL);
+
+exit:
+       return -1;
+}
+
+U_BOOT_CMD(
+       zimageboot, 3, 0,       do_sh_zimageboot,
+       "Boot zImage for Renesas SH",
+       ""
+);