Initial commit: TXW82x FPV v2.7.0.7-42229 SDK + project sources

2026-07-06 11:30:13 +08:00
commit e76462eeb7
3451 changed files with 1415300 additions and 0 deletions
--- a/sdk/lib/sdhost/emmc.c
+++ b/sdk/lib/sdhost/emmc.c
@@ -0,0 +1,136 @@
+#include "sys_config.h"
+#include "typesdef.h"
+#include "devid.h"
+#include "list.h"
+#include "dev.h"
+#include "osal/task.h"
+#include "osal/semaphore.h"
+#include "osal/mutex.h"
+#include "lib/sdhost/sdhost.h"
+#include "lib/sdhost/mmc.h"
+#include "lib/sdhost/mmc_ops.h"
+#include "hal/gpio.h"
+#include "osal/irq.h"
+#include "osal/string.h"
+#include "osal/mutex.h"
+#include "osal/irq.h"
+#include "osal/task.h"
+#include "osal/sleep.h"
+#include "osal/timer.h"
+#include "osal/work.h"
+
+extern void sdhost_io_func_init(uint32 req);
+extern uint32 sd_power_up(struct sdh_device *host,uint8 bus_w);
+extern void sd_set_clk(struct sdh_device * host,uint32 clk);
+#if 1
+#define EMMC_PRINTF(fmt, arg...) printf(fmt, ##arg)
+#else
+#define EMMC_PRINTF(fmt, arg...)
+#endif
+
+
+
+uint32_t send_op_cond(struct sdh_device *host,
+                            uint32_t           ocr,
+                            uint32_t          *rocr)
+{
+    struct rt_mmcsd_cmd cmd;
+    int ret;
+    memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
+    cmd.cmd_code = SEND_OP_COND;
+    cmd.arg = ocr;
+    cmd.flags = RESP_SPI_R1 | RESP_R3 | CMD_BCR;
+
+    ret = ((const struct sdhc_hal_ops *)host->dev.ops)->cmd(host, &cmd);
+    if(ret){
+        EMMC_PRINTF("cmd%d err\r\n", cmd.cmd_code);
+    }
+    EMMC_PRINTF("cmd resp:%x\r\n",cmd.resp[0]);
+
+    if(rocr)
+        *rocr = cmd.resp[0];
+
+    return ret;
+}
+
+
+
+
+int emmc_init(struct sdh_device * host, uint32 clk)
+{
+    uint32_t ocr;
+    uint8_t  bw  = 1;
+	uint8_t *ext_csd = NULL;
+    
+    if(((const struct sdhc_hal_ops *)host->dev.ops)->open)
+        ((const struct sdhc_hal_ops *)host->dev.ops)->open(host, 1, SD_MODE_TYPE);
+    
+    host->flags |= MMCSD_BUSWIDTH_4;
+	os_printf("host->flags:%x\r\n",host->flags);
+    sdhost_io_func_init(host->flags);
+    
+
+    if(bw == 4)
+        sd_power_up(host, MMCSD_BUSWIDTH_4);
+    else
+        sd_power_up(host,0);
+
+    sd_set_clk(host, 400*1000);
+
+    send_idle(host);
+
+    send_op_cond(host, 0x40FF8080, &ocr);
+    while(!(ocr & 0x80000000)) 
+    {
+        os_sleep_ms(5);
+        send_op_cond(host, 0x40FF8080, &ocr);
+    }
+
+    send_all_get_cid(host, host->resp_cid);
+
+    EMMC_PRINTF("cid0: 0x%x  cid1: 0x%x\r\n", host->resp_cid[0], host->resp_cid[1]);
+
+    host->rca = 1;
+    mmc_set_card_addr(host, host->rca);
+
+    EMMC_PRINTF("rca: 0x%x\r\n", host->rca);
+
+   //解析csd (to do)
+    send_get_csd(host, host->resp_csd);
+    host->card_blksize = 1 << GET_BITS(host->resp_csd, 80, 4);
+    EMMC_PRINTF("emmc spec verision: 0x%x\r\n", GET_BITS(host->resp_csd, 122, 4));
+    EMMC_PRINTF("max clock frequency %d\r\n", GET_BITS(host->resp_csd, 96, 3) * GET_BITS(host->resp_csd, 99, 4));
+    EMMC_PRINTF("block len: %d\r\n", host->card_blksize);
+    
+   //select card
+    send_select_card(host);
+
+   //解析ext_csd (to do)
+    ext_csd = os_malloc(512);
+    if(!ext_csd) {
+        EMMC_PRINTF("ext_csd malloc fail\r\n");
+    }
+
+    mmc_get_ext_csd(host, ext_csd);
+
+	mmc_parse_ext_csd(host, ext_csd);
+   
+   //切换bus width
+//    mmc_select_bus_width(host, ext_csd);
+
+   //配置驱动能力
+
+
+   //设置频率 & 采样调谐
+#ifndef FPGA_SUPPORT
+
+#endif
+
+    sd_set_clk(host, clk);
+    
+    host->cardflags |= CARD_FLAG_SDHC;
+
+    os_free(ext_csd);
+	EMMC_PRINTF("emmc init done\r\n");
+    return 0;
+}