summaryrefslogtreecommitdiffstats
path: root/qemu/roms/u-boot/common/cmd_dataflash_mmc_mux.c
diff options
context:
space:
mode:
authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/common/cmd_dataflash_mmc_mux.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/common/cmd_dataflash_mmc_mux.c')
-rw-r--r--qemu/roms/u-boot/common/cmd_dataflash_mmc_mux.c48
1 files changed, 48 insertions, 0 deletions
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
index 000000000..3832248cb
--- /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"
+);