sdmmc: send init sequence before CMD0

diff --git a/components/driver/sdmmc_transaction.c b/components/driver/sdmmc_transaction.c
index 16a27d5a1f9192f9824bd45cf534bfe94a52bf4c..31e76ac6d9f4bbcf780e4815ed169a6b2f932fce 100644 (file)
--- a/components/driver/sdmmc_transaction.c
+++ b/components/driver/sdmmc_transaction.c
@@ -250,6 +250,9 @@ static sdmmc_hw_cmd_t make_hw_cmd(sdmmc_command_t* cmd)
         res.send_auto_stop = 1;
         res.data_expected = 1;
     }
+    if (cmd->opcode == MMC_GO_IDLE_STATE) {
+        res.send_init = 1;
+    }
     if (cmd->flags & SCF_RSP_PRESENT) {
         res.response_expect = 1;
         if (cmd->flags & SCF_RSP_136) {