diff options
Diffstat (limited to 'drivers/mmc/sandbox_mmc.c')
| -rw-r--r-- | drivers/mmc/sandbox_mmc.c | 43 |
1 files changed, 37 insertions, 6 deletions
diff --git a/drivers/mmc/sandbox_mmc.c b/drivers/mmc/sandbox_mmc.c index 8a2391d651..18ba020aac 100644 --- a/drivers/mmc/sandbox_mmc.c +++ b/drivers/mmc/sandbox_mmc.c @@ -17,6 +17,17 @@ struct sandbox_mmc_plat { struct mmc mmc; }; +#define MMC_CSIZE 0 +#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) +#define MMC_CAPACITY (((MMC_CSIZE + 1) << (MMC_CMULT + 2)) \ + * MMC_BL_LEN) /* 1 MiB */ + +struct sandbox_mmc_priv { + u8 buf[MMC_CAPACITY]; +}; + /** * sandbox_mmc_send_cmd() - Emulate SD commands * @@ -26,6 +37,10 @@ struct sandbox_mmc_plat { 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) { case MMC_CMD_ALL_SEND_CID: memset(cmd->response, '\0', sizeof(cmd->response)); @@ -44,8 +59,9 @@ static int sandbox_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, break; case MMC_CMD_SEND_CSD: cmd->response[0] = 0; - cmd->response[1] = 10 << 16; /* 1 << block_len */ - cmd->response[2] = 0; + cmd->response[1] = (MMC_BL_LEN_SHIFT << 16) | + ((MMC_CSIZE >> 16) & 0x3f); + cmd->response[2] = (MMC_CSIZE & 0xffff) << 16; cmd->response[3] = 0; break; case SD_CMD_SWITCH_FUNC: { @@ -59,13 +75,27 @@ static int sandbox_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, break; } case MMC_CMD_READ_SINGLE_BLOCK: - memset(data->dest, '\0', data->blocksize); - break; case MMC_CMD_READ_MULTIPLE_BLOCK: - strcpy(data->dest, "this is a test"); + memcpy(data->dest, &priv->buf[cmd->cmdarg * data->blocksize], + data->blocks * data->blocksize); + break; + case MMC_CMD_WRITE_SINGLE_BLOCK: + case MMC_CMD_WRITE_MULTIPLE_BLOCK: + memcpy(&priv->buf[cmd->cmdarg * data->blocksize], data->src, + data->blocks * data->blocksize); break; case MMC_CMD_STOP_TRANSMISSION: break; + case SD_CMD_ERASE_WR_BLK_START: + erase_start = cmd->cmdarg; + break; + case SD_CMD_ERASE_WR_BLK_END: + erase_end = cmd->cmdarg; + break; + case MMC_CMD_ERASE: + memset(&priv->buf[erase_start * mmc->write_bl_len], '\0', + (erase_end - erase_start + 1) * mmc->write_bl_len); + break; case SD_CMD_APP_SEND_OP_COND: cmd->response[0] = OCR_BUSY | OCR_HCS; cmd->response[1] = 0; @@ -148,5 +178,6 @@ U_BOOT_DRIVER(mmc_sandbox) = { .bind = sandbox_mmc_bind, .unbind = sandbox_mmc_unbind, .probe = sandbox_mmc_probe, - .plat_auto = sizeof(struct sandbox_mmc_plat), + .priv_auto = sizeof(struct sandbox_mmc_priv), + .plat_auto = sizeof(struct sandbox_mmc_plat), }; |