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dm: mmc: Allow sandbox emulator to build without writes
When MMC_WRITE is disabled this driver produced a build error. Fix this. Also update a comment while we are here. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
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879a9416d1
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1 changed files with 8 additions and 2 deletions
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@ -23,6 +23,8 @@ struct sandbox_mmc_plat {
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#define MMC_CMULT 8 /* 8 because the card is high-capacity */
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#define MMC_BL_LEN_SHIFT 10
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#define MMC_BL_LEN BIT(MMC_BL_LEN_SHIFT)
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/* Granularity of priv->csize - this is 1MB */
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#define SIZE_MULTIPLE ((1 << (MMC_CMULT + 2)) * MMC_BL_LEN)
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struct sandbox_mmc_priv {
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@ -41,7 +43,6 @@ static int sandbox_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
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struct mmc_data *data)
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{
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struct sandbox_mmc_priv *priv = dev_get_priv(dev);
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struct mmc *mmc = mmc_get_mmc_dev(dev);
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static ulong erase_start, erase_end;
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switch (cmd->cmdidx) {
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@ -95,10 +96,15 @@ static int sandbox_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
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case SD_CMD_ERASE_WR_BLK_END:
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erase_end = cmd->cmdarg;
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break;
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case MMC_CMD_ERASE:
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#if CONFIG_IS_ENABLED(MMC_WRITE)
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case MMC_CMD_ERASE: {
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struct mmc *mmc = mmc_get_mmc_dev(dev);
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memset(&priv->buf[erase_start * mmc->write_bl_len], '\0',
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(erase_end - erase_start + 1) * mmc->write_bl_len);
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break;
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}
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#endif
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case SD_CMD_APP_SEND_OP_COND:
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cmd->response[0] = OCR_BUSY | OCR_HCS;
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cmd->response[1] = 0;
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