Add qemu 2.4.0

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

diff --git a/qemu/roms/u-boot/common/cmd_dataflash_mmc_mux.c b/qemu/roms/u-boot/common/cmd_dataflash_mmc_mux.c
new file mode 100644 (file)
index 0000000..3832248
--- /dev/null
+++ b/qemu/roms/u-boot/common/cmd_dataflash_mmc_mux.c
@@ -0,0 +1,48 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+
+static int mmc_nspi (const char *);
+
+int do_dataflash_mmc_mux (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       switch (argc) {
+       case 2:                 /* on / off     */
+               switch (mmc_nspi (argv[1])) {
+               case 0: AT91F_SelectSPI ();
+                       break;
+               case 1: AT91F_SelectMMC ();
+                       break;
+               }
+       case 1:                 /* get status */
+               printf ("Mux is configured to be %s\n",
+                       AT91F_GetMuxStatus () ? "MMC" : "SPI");
+               return 0;
+       default:
+               return CMD_RET_USAGE;
+       }
+       return 0;
+}
+
+static int mmc_nspi (const char *s)
+{
+       if (strcmp (s, "mmc") == 0) {
+               return 1;
+       } else if (strcmp (s, "spi") == 0) {
+               return 0;
+       }
+       return -1;
+}
+
+U_BOOT_CMD(
+       dataflash_mmc_mux, 2, 1, do_dataflash_mmc_mux,
+       "enable or disable MMC or SPI\n",
+       "[mmc, spi]\n"
+       "    - enable or disable MMC or SPI"
+);