hpm6750/controller_yy_app/hardware/hard_sdio_sd.c

#include "board.h"
#include "hpm_sdxc_drv.h"
#include "hard_sdio_sd.h"
// 使用官方的SDMMC例程包
// 修改时要修改初始化io 和时钟 在port文件内
// 这里负责操作初始化IO 和 时钟的接口 注意在port文件填写对应的回调函数
void sdxc_cd_pin(SDXC_Type *ptr, bool as_gpio)
{
    uint32_t cd_pad_ctl = IOC_PAD_PAD_CTL_DS_SET(6) | IOC_PAD_PAD_CTL_PE_SET(1) | IOC_PAD_PAD_CTL_PS_SET(1);
    if (ptr == HPM_SDXC1) {
        /* SDXC1.CDN */
        uint32_t cd_func_alt = as_gpio ? IOC_PD28_FUNC_CTL_GPIO_D_28 : IOC_PD28_FUNC_CTL_SDC1_CDN;
        HPM_IOC->PAD[IOC_PAD_PD28].FUNC_CTL = cd_func_alt;
        HPM_IOC->PAD[IOC_PAD_PD28].PAD_CTL = cd_pad_ctl;
    }
}

uint32_t sd_configure_clock(SDXC_Type *ptr, uint32_t freq, bool need_inverse)
{
    uint32_t actual_freq = 0;
    do {
        if (ptr != HPM_SDXC1) {
            break;
        }
        clock_name_t sdxc_clk = (ptr == HPM_SDXC0) ? clock_sdxc0 : clock_sdxc1;
        sdxc_enable_inverse_clock(ptr, false);
        sdxc_enable_sd_clock(ptr, false);
        /* Configure the clock below 400KHz for the identification state */
        if (freq <= 400000UL) {
            clock_set_source_divider(sdxc_clk, clk_src_osc24m, 63);
        }
            /* configure the clock to 24MHz for the SDR12/Default speed */
        else if (freq <= 26000000UL) {
            clock_set_source_divider(sdxc_clk, clk_src_osc24m, 1);
        }
            /* Configure the clock to 50MHz for the SDR25/High speed/50MHz DDR/50MHz SDR */
        else if (freq <= 52000000UL) {
            clock_set_source_divider(sdxc_clk, clk_src_pll1_clk1, 8);
        }
            /* Configure the clock to 100MHz for the SDR50 */
        else if (freq <= 100000000UL) {
            clock_set_source_divider(sdxc_clk, clk_src_pll1_clk1, 4);
        }
            /* Configure the clock to 166MHz for SDR104/HS200/HS400  */
        else if (freq <= 208000000UL) {
            clock_set_source_divider(sdxc_clk, clk_src_pll2_clk0, 2);
        }
            /* For other unsupported clock ranges, configure the clock to 24MHz */
        else {
            clock_set_source_divider(sdxc_clk, clk_src_osc24m, 1);
        }
        if (need_inverse) {
            sdxc_enable_inverse_clock(ptr, true);
        }
        sdxc_enable_sd_clock(ptr, true);
        actual_freq = clock_get_frequency(sdxc_clk);
    } while (false);

    return actual_freq;
}

void sdxc_cmd_pin(SDXC_Type *ptr, bool open_drain, bool is_1v8)
{
    uint32_t cmd_func_ctl = IOC_PAD_FUNC_CTL_ALT_SELECT_SET(17) | IOC_PAD_FUNC_CTL_LOOP_BACK_SET(1);
    uint32_t cmd_pad_ctl = IOC_PAD_PAD_CTL_MS_SET(is_1v8) | IOC_PAD_PAD_CTL_DS_SET(6) | IOC_PAD_PAD_CTL_PE_SET(1) |
                           IOC_PAD_PAD_CTL_PS_SET(1);
    if (open_drain) {
        cmd_pad_ctl |= IOC_PAD_PAD_CTL_OD_MASK;
    }

    if (ptr == HPM_SDXC1) {
        /* SDXC1.CMD */
        HPM_IOC->PAD[IOC_PAD_PD21].FUNC_CTL = cmd_func_ctl;
        HPM_IOC->PAD[IOC_PAD_PD21].PAD_CTL = cmd_pad_ctl;
    }
}

void sdxc_clk_data_pins(SDXC_Type *ptr, uint32_t width, bool is_1v8)
{
    uint32_t func_ctl = IOC_PAD_FUNC_CTL_ALT_SELECT_SET(17);
    uint32_t pad_ctl = IOC_PAD_PAD_CTL_MS_SET(is_1v8) | IOC_PAD_PAD_CTL_DS_SET(6) | IOC_PAD_PAD_CTL_PE_SET(1) |
                       IOC_PAD_PAD_CTL_PS_SET(1);

    if (ptr == HPM_SDXC1) {
        /* SDXC1.CLK */
        HPM_IOC->PAD[IOC_PAD_PD22].FUNC_CTL = func_ctl;
        HPM_IOC->PAD[IOC_PAD_PD22].PAD_CTL = pad_ctl;

        /* SDXC1.DATA0 */
        HPM_IOC->PAD[IOC_PAD_PD18].FUNC_CTL = func_ctl;
        HPM_IOC->PAD[IOC_PAD_PD18].PAD_CTL = pad_ctl;
        if ((width == 4)) {
            /* SDXC1.DATA1 */
            HPM_IOC->PAD[IOC_PAD_PD17].FUNC_CTL = func_ctl;
            HPM_IOC->PAD[IOC_PAD_PD17].PAD_CTL = pad_ctl;
            /* SDXC1.DATA2 */
            HPM_IOC->PAD[IOC_PAD_PD27].FUNC_CTL = func_ctl;
            HPM_IOC->PAD[IOC_PAD_PD27].PAD_CTL = pad_ctl;
            /* SDXC1.DATA3 */
            HPM_IOC->PAD[IOC_PAD_PD26].FUNC_CTL = func_ctl;
            HPM_IOC->PAD[IOC_PAD_PD26].PAD_CTL = pad_ctl;
        }
    }

}