From 43db9e00d5837c100c0b2fbbee64a08ab807d1e0 Mon Sep 17 00:00:00 2001 From: thead_admin Date: Tue, 13 Sep 2022 11:04:33 +0800 Subject: Linux_SDK_V0.9.5 --- cmd/dataflash_mmc_mux.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 cmd/dataflash_mmc_mux.c (limited to 'cmd/dataflash_mmc_mux.c') diff --git a/cmd/dataflash_mmc_mux.c b/cmd/dataflash_mmc_mux.c new file mode 100644 index 00000000..9f271b6f --- /dev/null +++ b/cmd/dataflash_mmc_mux.c @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + */ + +#include +#include + +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" +); -- cgit v1.2.3