* Licensed under the GPL-2 or later.
*/
#include <common.h>
+#include <errno.h>
#include <malloc.h>
#include <part.h>
#include <mmc.h>
#include <spi.h>
#include <crc.h>
#include <linux/crc7.h>
-#include <linux/byteorder/swab.h>
+#include <asm/byteorder.h>
/* MMC/SD in SPI mode reports R1 status always */
#define R1_SPI_IDLE (1 << 0)
spi_xfer(spi, bsize * 8, NULL, buf, 0);
spi_xfer(spi, 2 * 8, NULL, &crc, 0);
#ifdef CONFIG_MMC_SPI_CRC_ON
- if (swab16(cyg_crc16(buf, bsize)) != crc) {
- debug("%s: CRC error\n", mmc->name);
+ if (be_to_cpu16(crc16_ccitt(0, buf, bsize)) != crc) {
+ debug("%s: CRC error\n", mmc->cfg->name);
r1 = R1_SPI_COM_CRC;
break;
}
tok[1] = multi ? SPI_TOKEN_MULTI_WRITE : SPI_TOKEN_SINGLE;
while (bcnt--) {
#ifdef CONFIG_MMC_SPI_CRC_ON
- crc = swab16(cyg_crc16((u8 *)buf, bsize));
+ crc = cpu_to_be16(crc16_ccitt(0, (u8 *)buf, bsize));
#endif
spi_xfer(spi, 2 * 8, tok, NULL, 0);
spi_xfer(spi, bsize * 8, buf, NULL, 0);
u8 r1;
int i;
int ret = 0;
- debug("%s:cmd%d %x %x %x\n", __func__,
- cmd->cmdidx, cmd->resp_type, cmd->cmdarg, cmd->flags);
+ debug("%s:cmd%d %x %x\n", __func__,
+ cmd->cmdidx, cmd->resp_type, cmd->cmdarg);
spi_claim_bus(spi);
spi_cs_activate(spi);
r1 = mmc_spi_sendcmd(mmc, cmd->cmdidx, cmd->cmdarg);
if (r1 == 0xff) { /* no response */
- ret = NO_CARD_ERR;
+ ret = -ENOMEDIUM;
goto done;
} else if (r1 & R1_SPI_COM_CRC) {
- ret = COMM_ERR;
+ ret = -ECOMM;
goto done;
} else if (r1 & ~R1_SPI_IDLE) { /* other errors */
- ret = TIMEOUT;
+ ret = -ETIMEDOUT;
goto done;
} else if (cmd->resp_type == MMC_RSP_R2) {
r1 = mmc_spi_readdata(mmc, cmd->response, 1, 16);
for (i = 0; i < 4; i++)
- cmd->response[i] = swab32(cmd->response[i]);
+ cmd->response[i] = be32_to_cpu(cmd->response[i]);
debug("r128 %x %x %x %x\n", cmd->response[0], cmd->response[1],
cmd->response[2], cmd->response[3]);
} else if (!data) {
case SD_CMD_SEND_IF_COND:
case MMC_CMD_SPI_READ_OCR:
spi_xfer(spi, 4 * 8, NULL, cmd->response, 0);
- cmd->response[0] = swab32(cmd->response[0]);
+ cmd->response[0] = be32_to_cpu(cmd->response[0]);
debug("r32 %x\n", cmd->response[0]);
break;
case MMC_CMD_SEND_STATUS:
data->blocks, data->blocksize,
(cmd->cmdidx == MMC_CMD_WRITE_MULTIPLE_BLOCK));
if (r1 & R1_SPI_COM_CRC)
- ret = COMM_ERR;
+ ret = -ECOMM;
else if (r1) /* other errors */
- ret = TIMEOUT;
+ ret = -ETIMEDOUT;
}
done:
spi_cs_deactivate(spi);
return ret;
}
-static void mmc_spi_set_ios(struct mmc *mmc)
+static int mmc_spi_set_ios(struct mmc *mmc)
{
struct spi_slave *spi = mmc->priv;
+
debug("%s: clock %u\n", __func__, mmc->clock);
if (mmc->clock)
spi_set_speed(spi, mmc->clock);
+ return 0;
}
static int mmc_spi_init_p(struct mmc *mmc)
{
struct spi_slave *spi = mmc->priv;
- mmc->clock = 0;
spi_set_speed(spi, MMC_SPI_MIN_CLOCK);
spi_claim_bus(spi);
/* cs deactivated for 100+ clock */
return 0;
}
+static const struct mmc_ops mmc_spi_ops = {
+ .send_cmd = mmc_spi_request,
+ .set_ios = mmc_spi_set_ios,
+ .init = mmc_spi_init_p,
+};
+
+static struct mmc_config mmc_spi_cfg = {
+ .name = "MMC_SPI",
+ .ops = &mmc_spi_ops,
+ .host_caps = MMC_MODE_SPI,
+ .voltages = MMC_SPI_VOLTAGE,
+ .f_min = MMC_SPI_MIN_CLOCK,
+ .part_type = PART_TYPE_DOS,
+ .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT,
+};
+
struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode)
{
struct mmc *mmc;
+ struct spi_slave *spi;
- mmc = malloc(sizeof(*mmc));
- if (!mmc)
- return NULL;
- memset(mmc, 0, sizeof(*mmc));
- mmc->priv = spi_setup_slave(bus, cs, speed, mode);
- if (!mmc->priv) {
- free(mmc);
+ spi = spi_setup_slave(bus, cs, speed, mode);
+ if (spi == NULL)
return NULL;
- }
- sprintf(mmc->name, "MMC_SPI");
- mmc->send_cmd = mmc_spi_request;
- mmc->set_ios = mmc_spi_set_ios;
- mmc->init = mmc_spi_init_p;
- mmc->getcd = NULL;
- mmc->host_caps = MMC_MODE_SPI;
-
- mmc->voltages = MMC_SPI_VOLTAGE;
- mmc->f_max = speed;
- mmc->f_min = MMC_SPI_MIN_CLOCK;
- mmc->block_dev.part_type = PART_TYPE_DOS;
- mmc_register(mmc);
+ mmc_spi_cfg.f_max = speed;
+ mmc = mmc_create(&mmc_spi_cfg, spi);
+ if (mmc == NULL) {
+ spi_free_slave(spi);
+ return NULL;
+ }
return mmc;
}