[BSP][RT1050] improve sdio stability and speed. | 优化SDIO接口稳定性和速度.

1.格式化代码.
2.优化SDIO接口稳定性和速度: 将SDIO时钟树中分频数增大, 提高内部时钟的稳定性, 同时SDIO速度提高到30M. 并且通过USB拷贝12M MP3文件测试, 多次拷贝数据稳定.

bsp/imxrt1052-evk/drivers/drv_sdio.c

@@ -76,7 +76,8 @@ static int enable_log = 1;
 
 ALIGN(USDHC_ADMA2_ADDR_ALIGN) uint32_t g_usdhcAdma2Table[USDHC_ADMA_TABLE_WORDS] SECTION("NonCacheable");
 
-struct imxrt_mmcsd {
+struct imxrt_mmcsd
+{
     struct rt_mmcsd_host *host;
     struct rt_mmcsd_req *req;
     struct rt_mmcsd_cmd *cmd;
@@ -93,7 +94,7 @@ struct imxrt_mmcsd {
     uint32_t *usdhc_adma2_table;
 };
 
-static void _mmcsd_gpio_init(struct imxrt_mmcsd * mmcsd)
+static void _mmcsd_gpio_init(struct imxrt_mmcsd *mmcsd)
 {
     gpio_pin_config_t sw_config;
 
@@ -199,7 +200,7 @@ static void SDMMCHOST_ErrorRecovery(USDHC_Type *base)
     }
 }
 
-static void _mmcsd_host_init(struct imxrt_mmcsd * mmcsd)
+static void _mmcsd_host_init(struct imxrt_mmcsd *mmcsd)
 {
     usdhc_host_t *usdhc_host = &mmcsd->usdhc_host;
 
@@ -214,28 +215,28 @@ static void _mmcsd_host_init(struct imxrt_mmcsd * mmcsd)
     USDHC_Init(usdhc_host->base, &(usdhc_host->config));
 }
 
-static void _mmcsd_clk_init(struct imxrt_mmcsd * mmcsd)
+static void _mmcsd_clk_init(struct imxrt_mmcsd *mmcsd)
 {
     CLOCK_EnableClock(mmcsd->ip_clock);
-    CLOCK_SetDiv(mmcsd->usdhc_div, 0U);
+    CLOCK_SetDiv(mmcsd->usdhc_div, 5U);
 }
 
-static void _mmcsd_isr_init(struct imxrt_mmcsd * mmcsd)
+static void _mmcsd_isr_init(struct imxrt_mmcsd *mmcsd)
 {
     //NVIC_SetPriority(USDHC1_IRQn, 5U);
 }
 
 static void _mmc_request(struct rt_mmcsd_host *host, struct rt_mmcsd_req *req)
 {
-    struct imxrt_mmcsd * mmcsd;
-    struct rt_mmcsd_cmd * cmd;
-    struct rt_mmcsd_data * data;
+    struct imxrt_mmcsd *mmcsd;
+    struct rt_mmcsd_cmd *cmd;
+    struct rt_mmcsd_data *data;
     status_t error;
     usdhc_adma_config_t dmaConfig;
     usdhc_transfer_t fsl_content = {0};
     usdhc_command_t fsl_command = {0};
     usdhc_data_t fsl_data = {0};
-    rt_uint32_t * buf = NULL;
+    rt_uint32_t *buf = NULL;
 
     RT_ASSERT(host != RT_NULL);
     RT_ASSERT(req != RT_NULL);
@@ -430,7 +431,7 @@ static void _mmc_request(struct rt_mmcsd_host *host, struct rt_mmcsd_req *req)
 static void _mmc_set_iocfg(struct rt_mmcsd_host *host, struct rt_mmcsd_io_cfg *io_cfg)
 {
 
-    struct imxrt_mmcsd * mmcsd;
+    struct imxrt_mmcsd *mmcsd;
     unsigned int usdhc_clk;
     unsigned int bus_width;
     uint32_t src_clk;
@@ -443,7 +444,7 @@ static void _mmc_set_iocfg(struct rt_mmcsd_host *host, struct rt_mmcsd_io_cfg *i
     usdhc_clk = io_cfg->clock;
     bus_width = io_cfg->bus_width;
 
-    if(usdhc_clk > IMXRT_MAX_FREQ)
+    if (usdhc_clk > IMXRT_MAX_FREQ)
         usdhc_clk = IMXRT_MAX_FREQ;
     src_clk = (CLOCK_GetSysPfdFreq(kCLOCK_Pfd2) / (CLOCK_GetDiv(mmcsd->usdhc_div) + 1U));
 
@@ -492,7 +493,8 @@ FINSH_FUNCTION_EXPORT(log_toggle, toglle log dumple);
 //
 //}
 
-static const struct rt_mmcsd_host_ops ops = {
+static const struct rt_mmcsd_host_ops ops =
+{
     _mmc_request,
     _mmc_set_iocfg,
     RT_NULL,//_mmc_get_card_status,