Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / common / cmd_io.c

diff --git a/qemu/roms/u-boot/common/cmd_io.c b/qemu/roms/u-boot/common/cmd_io.c
new file mode 100644 (file)
index 0000000..eefac36
--- /dev/null
+++ b/qemu/roms/u-boot/common/cmd_io.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2012 The Chromium OS Authors.
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+/*
+ * IO space access commands.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/io.h>
+
+/*
+ * IO Display
+ *
+ * Syntax:
+ *     iod{.b, .w, .l} {addr}
+ */
+int do_io_iod(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+       ulong addr;
+       int size;
+
+       if (argc != 2)
+               return CMD_RET_USAGE;
+
+       size = cmd_get_data_size(argv[0], 4);
+       if (size < 0)
+               return 1;
+
+       addr = simple_strtoul(argv[1], NULL, 16);
+
+       printf("%04x: ", (u16) addr);
+
+       if (size == 4)
+               printf("%08x\n", inl(addr));
+       else if (size == 2)
+               printf("%04x\n", inw(addr));
+       else
+               printf("%02x\n", inb(addr));
+
+       return 0;
+}
+
+int do_io_iow(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+       ulong addr, size, val;
+
+       if (argc != 3)
+               return CMD_RET_USAGE;
+
+       size = cmd_get_data_size(argv[0], 4);
+       if (size < 0)
+               return 1;
+
+       addr = simple_strtoul(argv[1], NULL, 16);
+       val = simple_strtoul(argv[2], NULL, 16);
+
+       if (size == 4)
+               outl((u32) val, addr);
+       else if (size == 2)
+               outw((u16) val, addr);
+       else
+               outb((u8) val, addr);
+
+       return 0;
+}
+
+/**************************************************/
+U_BOOT_CMD(iod, 2, 0, do_io_iod,
+          "IO space display", "[.b, .w, .l] address [# of objects]");
+
+U_BOOT_CMD(iow, 3, 0, do_io_iow,
+          "IO space modify (auto-incrementing address)",
+          "[.b, .w, .l] address");