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dm: mmc: Allow sandbox emulator to build without writes

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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>
This commit is contained in:
Simon Glass 2022-10-20 18:22:58 -06:00 committed by Tom Rini
parent 879a9416d1
commit 372a7d925b
1 changed files with 8 additions and 2 deletions
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10
drivers/mmc/sandbox_mmc.c
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@ -23,6 +23,8 @@ struct sandbox_mmc_plat {
#define MMC_CMULT 8 /* 8 because the card is high-capacity */
#define MMC_BL_LEN_SHIFT 10
#define MMC_BL_LEN BIT(MMC_BL_LEN_SHIFT)
/* Granularity of priv->csize - this is 1MB */
#define SIZE_MULTIPLE ((1 << (MMC_CMULT + 2)) * MMC_BL_LEN)
struct sandbox_mmc_priv {
@ -41,7 +43,6 @@ static int sandbox_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
struct mmc_data *data)
{
struct sandbox_mmc_priv *priv = dev_get_priv(dev);
struct mmc *mmc = mmc_get_mmc_dev(dev);
static ulong erase_start, erase_end;
switch (cmd->cmdidx) {
@ -95,10 +96,15 @@ static int sandbox_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
case SD_CMD_ERASE_WR_BLK_END:
erase_end = cmd->cmdarg;
break;
case MMC_CMD_ERASE:
#if CONFIG_IS_ENABLED(MMC_WRITE)
case MMC_CMD_ERASE: {
struct mmc *mmc = mmc_get_mmc_dev(dev);
memset(&priv->buf[erase_start * mmc->write_bl_len], '\0',
(erase_end - erase_start + 1) * mmc->write_bl_len);
break;
}
#endif
case SD_CMD_APP_SEND_OP_COND:
cmd->response[0] = OCR_BUSY | OCR_HCS;
cmd->response[1] = 0;