Merge pull request #4096 from Guozhanxin/sdio_fix

完善sdio框架中切换到高速模式时的时钟设置
2020-11-28 06:48:14 +08:00 · 2020-11-28 06:48:14 +08:00 · af95348bf1
parent fba1d75485 bb016927f8
commit af95348bf1
1 changed files with 3 additions and 3 deletions
--- a/components/drivers/sdio/sdio.c
+++ b/components/drivers/sdio/sdio.c
@ -892,9 +892,9 @@ static rt_int32_t sdio_init_card(struct rt_mmcsd_host *host, rt_uint32_t ocr)

    if (card->flags & CARD_FLAG_HIGHSPEED) 
    {
-        mmcsd_set_clock(host, 50000000);
-    } 
-    else 
+        mmcsd_set_clock(host, card->host->freq_max > 50000000 ? 50000000 : card->host->freq_max);
+    }
+    else
    {
        mmcsd_set_clock(host, card->cis.max_tran_speed);
    }