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780 lines
20 KiB
780 lines
20 KiB
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018-02-08 RT-Thread the first version
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*/
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#include <rtthread.h>
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#include <rthw.h>
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#include <rtdevice.h>
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#include <string.h>
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#include "drv_sdio.h"
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#include "interrupt.h"
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#include "mmu.h"
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#include "drv_gpio.h"
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#include "drv_clock.h"
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#define DBG_TAG "MMC"
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// #define DBG_LVL DBG_LOG
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// #define DBG_LVL DBG_INFO
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#define DBG_LVL DBG_WARNING
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// #define DBG_LVL DBG_ERROR
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#include <rtdbg.h>
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#ifdef RT_USING_SDIO
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#define CONFIG_MMC_USE_DMA
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#define DMA_ALIGN (32U)
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struct mmc_xfe_des
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{
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rt_uint32_t size; /* block size */
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rt_uint32_t num; /* block num */
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rt_uint8_t *buff; /* buff addr */
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rt_uint32_t flag; /* write or read or stream */
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#define MMC_DATA_WRITE (1 << 0)
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#define MMC_DATA_READ (1 << 1)
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#define MMC_DATA_STREAM (1 << 2)
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};
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struct mmc_flag
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{
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volatile rt_uint32_t risr;
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volatile rt_uint32_t idst;
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};
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struct sdio_drv
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{
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struct rt_mmcsd_host *host;
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struct rt_mmcsd_req *req;
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struct rt_semaphore rt_sem;
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struct mmc_xfe_des xfe;
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struct mmc_flag flag;
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tina_mmc_t mmc_des;
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rt_uint8_t *mmc_buf;
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rt_uint8_t usedma;
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};
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#ifdef CONFIG_MMC_USE_DMA
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#ifdef TINA_USING_SDIO0
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rt_align(32) static rt_uint8_t dma_buffer[64 * 1024];
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#endif
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#endif
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static void mmc_request_end(struct rt_mmcsd_host *host, struct rt_mmcsd_req *req);
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static void mmc_delay_us(int us)
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{
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volatile unsigned int temp;
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while (us--)
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{
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temp = 0x2f;
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while (temp--)
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{
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temp = temp;
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};
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}
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}
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static void mmc_dump_errinfo(unsigned int err)
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{
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LOG_E("[err]:0x%08x, %s%s%s%s%s%s%s%s%s%s%s",
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err,
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err & SDXC_RespErr ? " RE" : "",
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err & SDXC_RespCRCErr ? " RCE" : "",
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err & SDXC_DataCRCErr ? " DCE" : "",
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err & SDXC_RespTimeout ? " RTO" : "",
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err & SDXC_DataTimeout ? " DTO" : "",
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err & SDXC_DataStarve ? " DS" : "",
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err & SDXC_FIFORunErr ? " FE" : "",
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err & SDXC_HardWLocked ? " HL" : "",
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err & SDXC_StartBitErr ? " SBE" : "",
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err & SDXC_EndBitErr ? " EBE" : "",
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err == 0 ? " STO" : ""
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);
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}
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static int mmc_update_clk(tina_mmc_t mmc)
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{
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rt_uint32_t cmd;
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rt_uint32_t timeout = 2000000;
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/* cmd load */
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cmd = SDXC_LOAD_CMD | SDXC_UPDATE_CLOCK_CMD | SDXC_WAIT_OVER_CMD;
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mmc->cmdr_reg = cmd;
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/* while load success */
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while ((mmc->cmdr_reg & SDXC_LOAD_CMD) && (--timeout))
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{
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mmc_delay_us(1);
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}
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if (!timeout)
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{
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LOG_E("mmc update clk failed");
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return -RT_ERROR;
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}
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/* clean interrupt */
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mmc->risr_reg = mmc->risr_reg;
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return RT_EOK;
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}
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static rt_err_t mmc_trans_data_by_dma(tina_mmc_t mmc, struct mmc_xfe_des *xfe)
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{
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rt_align(32) static struct mmc_des_v4p1 pdes[128];
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unsigned i, rval;
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unsigned des_idx;
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unsigned length = xfe->size * xfe->num;
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unsigned buff_frag_num = length >> SDXC_DES_NUM_SHIFT;
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unsigned remain = length & (SDXC_DES_BUFFER_MAX_LEN - 1);
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if (remain)
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{
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buff_frag_num ++;
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}
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else
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{
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remain = SDXC_DES_BUFFER_MAX_LEN;
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}
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memset(pdes, 0, sizeof(pdes));
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mmu_clean_dcache((rt_uint32_t)(xfe->buff), length);
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for (i = 0, des_idx = 0; i < buff_frag_num; i++, des_idx++)
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{
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// memset((void*)&pdes[des_idx], 0, sizeof(struct mmc_v4p1));
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pdes[des_idx].des_chain = 1;
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pdes[des_idx].own = 1;
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pdes[des_idx].dic = 1;
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if ((buff_frag_num > 1) && (i != buff_frag_num - 1))
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{
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pdes[des_idx].data_buf1_sz = SDXC_DES_BUFFER_MAX_LEN;
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}
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else
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{
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pdes[des_idx].data_buf1_sz = remain;
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}
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pdes[des_idx].buf_addr_ptr1 = (unsigned long)(xfe->buff) + i * SDXC_DES_BUFFER_MAX_LEN;
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if (i == 0)
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{
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pdes[des_idx].first_des = 1;
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}
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if (i == (buff_frag_num - 1))
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{
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pdes[des_idx].dic = 0;
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pdes[des_idx].last_des = 1;
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pdes[des_idx].end_of_ring = 1;
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pdes[des_idx].buf_addr_ptr2 = 0;
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}
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else
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{
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pdes[des_idx].buf_addr_ptr2 = (unsigned long)&pdes[des_idx+1];
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}
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LOG_D("frag %d, remain %d, des[%d](%08x): " \
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"[0] = %08x, [1] = %08x, [2] = %08x, [3] = %08x", \
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i, remain, des_idx, (unsigned int)&pdes[des_idx],
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(unsigned int)((unsigned int*)&pdes[des_idx])[0], (unsigned int)((unsigned int*)&pdes[des_idx])[1],
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(unsigned int)((unsigned int*)&pdes[des_idx])[2], (unsigned int)((unsigned int*)&pdes[des_idx])[3]);
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}
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mmu_clean_dcache((rt_uint32_t)pdes, sizeof(struct mmc_des_v4p1) * (des_idx + 1));
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/*
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* GCTRLREG
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* GCTRL[2] : DMA reset
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* GCTRL[5] : DMA enable
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*
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* IDMACREG
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* IDMAC[0] : IDMA soft reset
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* IDMAC[1] : IDMA fix burst flag
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* IDMAC[7] : IDMA on
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*
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* IDIECREG
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* IDIE[0] : IDMA transmit interrupt flag
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* IDIE[1] : IDMA receive interrupt flag
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*/
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rval = mmc->gctl_reg;
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mmc->gctl_reg = rval | (1 << 5) | (1 << 2); /* dma enable */
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mmc->dmac_reg = (1 << 0); /* idma reset */
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while(mmc->dmac_reg & 0x1) {}; /* wait idma reset done */
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mmc->dmac_reg = (1 << 1) | (1 << 7); /* idma on */
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rval = mmc->idie_reg & (~3);
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if (xfe->flag == MMC_DATA_WRITE)
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rval |= (1 << 0);
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else
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rval |= (1 << 1);
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mmc->idie_reg = rval;
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mmc->dlba_reg = (unsigned long)pdes;
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mmc->fwlr_reg = (2U << 28) | (7U << 16) | 8;
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return 0;
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}
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static rt_err_t mmc_trans_data_by_cpu(tina_mmc_t mmc, struct mmc_xfe_des *xfe)
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{
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unsigned i;
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unsigned byte_cnt = xfe->size * xfe->num;
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unsigned *buff = (unsigned *)(xfe->buff);
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volatile unsigned timeout = 2000000;
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if (xfe->flag == MMC_DATA_WRITE)
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{
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for (i = 0; i < (byte_cnt >> 2); i++)
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{
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while(--timeout && (mmc->star_reg & (1 << 3)));
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if (timeout <= 0)
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{
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LOG_E("write data by cpu failed status:0x%08x", mmc->star_reg);
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return -RT_ERROR;
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}
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mmc->fifo_reg = buff[i];
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timeout = 2000000;
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}
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}
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else
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{
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for (i = 0; i < (byte_cnt >> 2); i++)
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{
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while(--timeout && (mmc->star_reg & (1 << 2)));
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if (timeout <= 0)
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{
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LOG_E("read data by cpu failed status:0x%08x", mmc->star_reg);
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return -RT_ERROR;
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}
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buff[i] = mmc->fifo_reg;
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timeout = 2000000;
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}
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}
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return RT_EOK;
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}
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static rt_err_t mmc_config_clock(tina_mmc_t mmc, int clk)
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{
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rt_uint32_t rval = 0;
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/* disable card clock */
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rval = mmc->ckcr_reg;
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rval &= ~(1 << 16);
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mmc->ckcr_reg = rval;
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if (mmc_update_clk(mmc) != RT_EOK)
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{
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LOG_E("clk update fail line:%d", __LINE__);
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return -RT_ERROR;
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}
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if (mmc == MMC0)
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{
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mmc_set_clk(SDMMC0, clk);
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}
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else
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{
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mmc_set_clk(SDMMC1, clk);
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}
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/* Re-enable card clock */
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rval = mmc->ckcr_reg;
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rval |= (0x1 << 16); //(3 << 16);
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mmc->ckcr_reg = rval;
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if(mmc_update_clk(mmc) != RT_EOK)
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{
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LOG_E("clk update fail line:%d", __LINE__);
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return -RT_ERROR;
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}
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return RT_EOK;
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}
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static rt_err_t mmc_set_ios(tina_mmc_t mmc, int clk, int bus_width)
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{
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LOG_D("mmc set io bus width:%d clock:%d", \
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(bus_width == MMCSD_BUS_WIDTH_8 ? 8 : (bus_width == MMCSD_BUS_WIDTH_4 ? 4 : 1)), clk);
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/* change clock */
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if (clk && (mmc_config_clock(mmc, clk) != RT_EOK))
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{
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LOG_E("update clock failed");
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return -RT_ERROR;
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}
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/* Change bus width */
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if (bus_width == MMCSD_BUS_WIDTH_8)
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{
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mmc->bwdr_reg = 2;
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}
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else if (bus_width == MMCSD_BUS_WIDTH_4)
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{
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mmc->bwdr_reg = 1;
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}
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else
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{
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mmc->bwdr_reg = 0;
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}
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return RT_EOK;
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}
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static int mmc_send_cmd(struct rt_mmcsd_host *host, struct rt_mmcsd_cmd *cmd)
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{
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unsigned int cmdval = 0x80000000;
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signed int timeout = 0;
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int err = 0;
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unsigned int status = 0;
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struct rt_mmcsd_data *data = cmd->data;
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unsigned int bytecnt = 0;
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struct sdio_drv *sdio_des = (struct sdio_drv *)host->private_data;
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tina_mmc_t mmc = sdio_des->mmc_des;
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timeout = 5000 * 1000;
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status = mmc->star_reg;
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while (status & (1 << 9))
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{
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LOG_D("note: check card busy");
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status = mmc->star_reg;
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if (!timeout--)
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{
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err = -1;
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LOG_E("mmc cmd12 busy timeout data:0x%08x", status);
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return err;
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}
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mmc_delay_us(1);
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}
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/*
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* CMDREG
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* CMD[5:0] : Command index
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* CMD[6] : Has response
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* CMD[7] : Long response
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* CMD[8] : Check response CRC
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* CMD[9] : Has data
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* CMD[10] : Write
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* CMD[11] : Steam mode
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* CMD[12] : Auto stop
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* CMD[13] : Wait previous over
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* CMD[14] : About cmd
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* CMD[15] : Send initialization
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* CMD[21] : Update clock
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* CMD[31] : Load cmd
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*/
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if (!cmd->cmd_code)
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cmdval |= (1 << 15);
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if (resp_type(cmd) != RESP_NONE)
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cmdval |= (1 << 6);
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if (resp_type(cmd) == RESP_R2)
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cmdval |= (1 << 7);
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if ((resp_type(cmd) != RESP_R3) && (resp_type(cmd) != RESP_R4))
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cmdval |= (1 << 8);
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if (data)
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{
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cmdval |= (1 << 9) | (1 << 13);
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if (data->flags & DATA_DIR_WRITE)
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cmdval |= (1 << 10);
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if (data->blks > 1)
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cmdval |= (1 << 12);
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mmc->bksr_reg = data->blksize;
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bytecnt = data->blksize * data->blks;
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mmc->bycr_reg = bytecnt;
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}
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LOG_D("cmd %d(0x%08x), arg 0x%08x", cmd->cmd_code, cmdval | cmd->cmd_code, cmd->arg);
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mmc->cagr_reg = cmd->arg;
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if (!data)
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{
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mmc->cmdr_reg = cmdval | cmd->cmd_code;
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mmc->imkr_reg |= 0x1 << 2;
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}
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/*
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* transfer data and check status
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* STATREG[2] : FIFO empty
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* STATREG[3] : FIFO full
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*/
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if (data)
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{
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LOG_D("mmc trans data %d bytes addr:0x%08x", bytecnt, data);
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#ifdef CONFIG_MMC_USE_DMA
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if (bytecnt > 64)
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{
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#else
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if (0)
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{
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#endif
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sdio_des->usedma = 1;
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mmc->gctl_reg = mmc->gctl_reg & (~0x80000000);
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mmc_trans_data_by_dma(mmc, &sdio_des->xfe);
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mmc->cmdr_reg = cmdval | cmd->cmd_code;
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}
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else
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{
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sdio_des->usedma = 0;
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mmc->gctl_reg = mmc->gctl_reg | 0x80000000;
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mmc->cmdr_reg = cmdval | cmd->cmd_code;
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mmc_trans_data_by_cpu(mmc, &sdio_des->xfe);
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}
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if (data->blks > 1)
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{
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mmc->imkr_reg |= (0x1 << 14);
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}
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else
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{
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mmc->imkr_reg |= (0x1 << 3);
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}
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}
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mmc->imkr_reg |= 0xbfc2;
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if (data)
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{
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//TODO:2 * bytecnt * 4?
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timeout = sdio_des->usedma ? (2 * bytecnt * 4) : 100; //0.04us(25M)*2(4bit width)*25()
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if (timeout < 10)
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{
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timeout = 10;
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}
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}
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else
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{
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timeout = 200;
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}
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if (rt_sem_take(&sdio_des->rt_sem, timeout) != RT_EOK)
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{
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err = (mmc->risr_reg | sdio_des->flag.risr) & 0xbfc2;
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goto out;
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}
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err = (mmc->risr_reg | sdio_des->flag.risr) & 0xbfc2;
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if (err)
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{
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cmd->err = -RT_ETIMEOUT;
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goto out;
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}
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if (resp_type(cmd) == RESP_R2)
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{
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cmd->resp[3] = mmc->resp0_reg;
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cmd->resp[2] = mmc->resp1_reg;
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cmd->resp[1] = mmc->resp2_reg;
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cmd->resp[0] = mmc->resp3_reg;
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LOG_D("mmc resp 0x%08x 0x%08x 0x%08x 0x%08x",
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cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3]);
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}
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else
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{
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cmd->resp[0] = mmc->resp0_reg;
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LOG_D("mmc resp 0x%08x", cmd->resp[0]);
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}
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out:
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if (err)
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{
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mmc_dump_errinfo(err & 0xbfc2);
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}
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if (data && sdio_des->usedma)
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{
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/* IDMASTAREG
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* IDST[0] : idma tx int
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* IDST[1] : idma rx int
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* IDST[2] : idma fatal bus error
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* IDST[4] : idma descriptor invalid
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* IDST[5] : idma error summary
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* IDST[8] : idma normal interrupt sumary
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* IDST[9] : idma abnormal interrupt sumary
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*/
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status = mmc->idst_reg;
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mmc->idst_reg = status;
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mmc->idie_reg = 0;
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mmc->dmac_reg = 0;
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mmc->gctl_reg = mmc->gctl_reg & (~(1 << 5));
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}
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if (err)
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{
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if (data && (data->flags & DATA_DIR_READ) && (bytecnt == 512))
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{
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mmc->gctl_reg = mmc->gctl_reg | 0x80000000;
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mmc->dbgc_reg = 0xdeb;
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timeout = 1000;
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LOG_D("Read remain data");
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while (mmc->bbcr_reg < 512)
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{
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unsigned int tmp = mmc->fifo_reg;
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|
tmp = tmp;
|
|
LOG_D("Read data 0x%08x, bbcr 0x%04x", tmp, mmc->bbcr_reg);
|
|
mmc_delay_us(1);
|
|
if (!(timeout--))
|
|
{
|
|
LOG_E("Read remain data timeout");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
mmc->gctl_reg = 0x7;
|
|
while (mmc->gctl_reg & 0x7) { };
|
|
|
|
mmc_update_clk(mmc);
|
|
cmd->err = -RT_ETIMEOUT;
|
|
LOG_E("mmc cmd %d err", cmd->cmd_code);
|
|
}
|
|
|
|
mmc->gctl_reg &= ~(0x1 << 4);
|
|
mmc->imkr_reg &= ~0xffff;
|
|
mmc->risr_reg = 0xffffffff;
|
|
mmc->gctl_reg |= 0x1 << 4;
|
|
while (!rt_sem_take(&sdio_des->rt_sem, 0)) {}
|
|
mmc_request_end(sdio_des->host, sdio_des->req);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void mmc_request_end(struct rt_mmcsd_host *host, struct rt_mmcsd_req *req)
|
|
{
|
|
struct rt_mmcsd_data *data;
|
|
unsigned byte_cnt;
|
|
struct sdio_drv *sdio = (struct sdio_drv *)host->private_data;
|
|
|
|
#ifdef CONFIG_MMC_USE_DMA
|
|
data = req->cmd->data;
|
|
if (data)
|
|
{
|
|
byte_cnt = data->blksize * data->blks;
|
|
if ((byte_cnt > 64) && (data->flags & DATA_DIR_READ))
|
|
{
|
|
mmu_invalidate_dcache((rt_uint32_t)sdio->xfe.buff, (rt_uint32_t)byte_cnt);
|
|
|
|
if (((rt_uint32_t)data->buf) & (DMA_ALIGN - 1))
|
|
{
|
|
memcpy(data->buf, sdio->xfe.buff, byte_cnt);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
mmcsd_req_complete(host);
|
|
}
|
|
|
|
static void sdio_request_send(struct rt_mmcsd_host *host, struct rt_mmcsd_req *req)
|
|
{
|
|
struct rt_mmcsd_data *data;
|
|
int byte_cnt;
|
|
struct sdio_drv *sdio;
|
|
|
|
sdio = (struct sdio_drv *)host->private_data;
|
|
sdio->req = req;
|
|
data = req->cmd->data;
|
|
|
|
if (data)
|
|
{
|
|
sdio->xfe.size = data->blksize;
|
|
sdio->xfe.num = data->blks;
|
|
sdio->xfe.buff = (rt_uint8_t *)data->buf;
|
|
sdio->xfe.flag = (data->flags & DATA_DIR_WRITE) ? \
|
|
MMC_DATA_WRITE : MMC_DATA_READ;
|
|
#ifdef CONFIG_MMC_USE_DMA
|
|
byte_cnt = data->blksize * data->blks;
|
|
if ((byte_cnt > 64) && (((rt_uint32_t)data->buf) & (DMA_ALIGN - 1)))
|
|
{
|
|
sdio->xfe.buff = (rt_uint8_t *)sdio->mmc_buf;
|
|
if (data->flags & DATA_DIR_WRITE)
|
|
{
|
|
memcpy(sdio->mmc_buf, data->buf, byte_cnt);
|
|
mmu_clean_dcache((rt_uint32_t)sdio->mmc_buf, (rt_uint32_t)byte_cnt);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
memset(&sdio->flag, 0, sizeof(struct mmc_flag));
|
|
mmc_send_cmd(host, req->cmd);
|
|
|
|
return;
|
|
}
|
|
|
|
static void sdio_set_iocfg(struct rt_mmcsd_host *host, struct rt_mmcsd_io_cfg *io_cfg)
|
|
{
|
|
int clk = io_cfg->clock;
|
|
int width = io_cfg->bus_width;
|
|
struct sdio_drv *sdio_des = (struct sdio_drv *)host->private_data;
|
|
tina_mmc_t mmc = sdio_des->mmc_des;
|
|
|
|
mmc_set_ios(mmc, clk, width);
|
|
}
|
|
|
|
static const struct rt_mmcsd_host_ops ops =
|
|
{
|
|
sdio_request_send,
|
|
sdio_set_iocfg,
|
|
RT_NULL,
|
|
RT_NULL,
|
|
};
|
|
|
|
static void sdio_interrupt_handle(int irqno, void *param)
|
|
{
|
|
rt_uint32_t risr, idst;
|
|
rt_uint32_t status;
|
|
struct sdio_drv *sdio_des = (struct sdio_drv *)param;
|
|
struct rt_mmcsd_data *data = sdio_des->req->cmd->data;
|
|
tina_mmc_t mmc = sdio_des->mmc_des;
|
|
|
|
risr = mmc->risr_reg;
|
|
idst = mmc->idst_reg;
|
|
|
|
mmc->risr_reg = risr & mmc->imkr_reg;
|
|
mmc->idst_reg = idst & mmc->idie_reg;
|
|
|
|
sdio_des->flag.risr |= risr;
|
|
sdio_des->flag.idst |= idst;
|
|
|
|
if (data)
|
|
{
|
|
int done = 0;
|
|
|
|
status = sdio_des->flag.risr | mmc->risr_reg;
|
|
if (data->blks > 1)//not wait auto stop when MMC_CMD_MANUAL is set
|
|
{
|
|
if (sdio_des->usedma)
|
|
done = ((status & (1 << 14)) && (sdio_des->flag.idst & 0x3)) ? 1 : 0;
|
|
else
|
|
done = status & (1 << 14);
|
|
}
|
|
else
|
|
{
|
|
if (sdio_des->usedma)
|
|
done = ((status & (1 << 3)) && (sdio_des->flag.idst & 0x3)) ? 1 : 0;
|
|
else
|
|
done = status & (1 << 3);
|
|
}
|
|
|
|
if (done)
|
|
{
|
|
rt_sem_release(&sdio_des->rt_sem);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
rt_sem_release(&sdio_des->rt_sem);
|
|
}
|
|
}
|
|
|
|
static void sdio_gpio_init(struct sdio_drv *sdio_des)
|
|
{
|
|
int pin;
|
|
|
|
if ((rt_uint32_t)sdio_des->mmc_des == MMC0_BASE_ADDR)
|
|
{
|
|
/* SDC0: PF0-PF5 */
|
|
for (pin = GPIO_PIN_0; pin <= GPIO_PIN_5; pin++)
|
|
{
|
|
gpio_set_func(GPIO_PORT_F, pin, IO_FUN_1);
|
|
gpio_set_pull_mode(GPIO_PORT_F, pin, PULL_UP);
|
|
gpio_set_drive_level(GPIO_PORT_F, pin, DRV_LEVEL_2);
|
|
}
|
|
}
|
|
else if ((rt_uint32_t)sdio_des->mmc_des == MMC1_BASE_ADDR)
|
|
{
|
|
//todo: config gpio port
|
|
RT_ASSERT(0);
|
|
}
|
|
|
|
}
|
|
|
|
static void sdio_clk_io_on(struct sdio_drv *sdio_des)
|
|
{
|
|
if ((rt_uint32_t)sdio_des->mmc_des == MMC0_BASE_ADDR)
|
|
{
|
|
CCU->bus_clk_gating0 |= 0x1 << 8;
|
|
CCU->bus_soft_rst0 |= 0x1 << 8;
|
|
}
|
|
else if ((rt_uint32_t)sdio_des->mmc_des == MMC1_BASE_ADDR)
|
|
{
|
|
CCU->bus_clk_gating0 |= 0x1 << 9;
|
|
CCU->bus_soft_rst0 |= 0x1 << 9;
|
|
}
|
|
|
|
mmc_set_clk(SDMMC0, 24000000);
|
|
}
|
|
|
|
static void sdio_irq_init(void *param)
|
|
{
|
|
struct sdio_drv *sdio_des = (struct sdio_drv *)param;
|
|
|
|
if ((rt_uint32_t)sdio_des->mmc_des == MMC0_BASE_ADDR)
|
|
{
|
|
rt_hw_interrupt_install(SDC0_INTERRUPT, sdio_interrupt_handle, param, "mmc0_irq");
|
|
rt_hw_interrupt_umask(SDC0_INTERRUPT);
|
|
}
|
|
else if ((rt_uint32_t)sdio_des->mmc_des == MMC1_BASE_ADDR)
|
|
{
|
|
rt_hw_interrupt_install(SDC1_INTERRUPT, sdio_interrupt_handle, param, "mmc1_irq");
|
|
rt_hw_interrupt_umask(SDC1_INTERRUPT);
|
|
}
|
|
|
|
sdio_des->mmc_des->gctl_reg |= (0x1 << 4);
|
|
}
|
|
|
|
int tina_sdio_init(void)
|
|
{
|
|
struct rt_mmcsd_host *host;
|
|
|
|
#ifdef TINA_USING_SDIO0
|
|
{
|
|
static struct sdio_drv _sdio_drv;
|
|
|
|
host = mmcsd_alloc_host();
|
|
if (!host)
|
|
{
|
|
LOG_E("alloc host failed");
|
|
goto err;
|
|
}
|
|
|
|
if (rt_sem_init(&_sdio_drv.rt_sem, "sdio_sem", RT_NULL, RT_IPC_FLAG_FIFO))
|
|
{
|
|
LOG_E("sem init failed");
|
|
goto err;
|
|
}
|
|
_sdio_drv.mmc_des = (tina_mmc_t)MMC0_BASE_ADDR;
|
|
_sdio_drv.mmc_buf = dma_buffer;
|
|
//init gpio pin
|
|
sdio_gpio_init(&_sdio_drv);
|
|
//clk is on
|
|
sdio_clk_io_on(&_sdio_drv);
|
|
//irq init
|
|
sdio_irq_init(&_sdio_drv);
|
|
|
|
host->ops = &ops;
|
|
host->freq_min = 400 * 1000;
|
|
host->freq_max = 50 * 1000 * 1000;
|
|
host->valid_ocr = VDD_26_27 | VDD_27_28 | VDD_28_29 | VDD_29_30 | VDD_30_31 | VDD_31_32 |
|
|
VDD_32_33 | VDD_33_34 | VDD_34_35 | VDD_35_36;
|
|
host->flags = MMCSD_BUSWIDTH_4 | MMCSD_MUTBLKWRITE | MMCSD_SUP_SDIO_IRQ | MMCSD_SUP_HIGHSPEED;
|
|
host->max_seg_size = 2048;
|
|
host->max_dma_segs = 10;
|
|
host->max_blk_size = 512;
|
|
host->max_blk_count = 4096;
|
|
|
|
host->private_data = &_sdio_drv;
|
|
|
|
_sdio_drv.host = host;
|
|
|
|
mmcsd_change(host);
|
|
}
|
|
#endif
|
|
|
|
return RT_EOK;
|
|
|
|
err:
|
|
if (host)
|
|
{
|
|
rt_free(host);
|
|
}
|
|
|
|
return -RT_ERROR;
|
|
}
|
|
INIT_APP_EXPORT(tina_sdio_init);
|
|
#endif
|
|
|