unsigned char configure_mmc(mmc_card_data *mmc_card_cur)
{
unsigned char ret_val;
unsigned int argument;
unsigned int resp[4];
unsigned int trans_clk, trans_fact, trans_unit, retries = 2;
mmc_csd_reg_t Card_CSD;
unsigned char trans_speed;
ret_val = mmc_init_setup();
if (ret_val != 1)
return ret_val;
do {
ret_val = mmc_detect_card(mmc_card_cur);
retries--;
} while ((retries > 0) && (ret_val != 1));
argument = mmc_card_cur->RCA << 16;
ret_val = mmc_send_cmd(MMC_CMD9, argument, resp);
if (ret_val != 1)
return ret_val;
((unsigned int *) &Card_CSD)[3] = resp[3];
((unsigned int *) &Card_CSD)[2] = resp[2];
((unsigned int *) &Card_CSD)[1] = resp[1];
((unsigned int *) &Card_CSD)[0] = resp[0];
if (mmc_card_cur->card_type == MMC_CARD)
mmc_card_cur->version = Card_CSD.spec_vers;
trans_speed = (u8)Card_CSD.tran_speed;
ret_val = mmc_send_cmd(MMC_CMD4, MMC_DSR_DEFAULT << 16, resp);
if (ret_val != 1)
return ret_val;
trans_unit = trans_speed & MMC_CSD_TRAN_SPEED_UNIT_MASK;
trans_fact = trans_speed & MMC_CSD_TRAN_SPEED_FACTOR_MASK;
if (trans_unit > MMC_CSD_TRAN_SPEED_UNIT_100MHZ)
return 0;
if ((trans_fact < MMC_CSD_TRAN_SPEED_FACTOR_1_0) ||
(trans_fact > MMC_CSD_TRAN_SPEED_FACTOR_8_0))
return 0;
trans_unit >>= 0;
trans_fact >>= 3;
trans_clk = mmc_transspeed_val[trans_fact - 1][trans_unit] * 2;
ret_val = mmc_clock_config(CLK_MISC, (u16)trans_clk);
if (ret_val != 1)
return ret_val;
argument = mmc_card_cur->RCA << 16;
ret_val = mmc_send_cmd(MMC_CMD7_SELECT, argument, resp);
if (ret_val != 1)
return ret_val;
/* Configure the block length to 512 bytes */
argument = MMCSD_SECTOR_SIZE;
ret_val = mmc_send_cmd(MMC_CMD16, argument, resp);
if (ret_val != 1)
return ret_val;
/* get the card size in sectors */
ret_val = mmc_read_cardsize(mmc_card_cur, &Card_CSD);
if (ret_val != 1)
return ret_val;
return 1;
}
unsigned char configure_mmc(mmc_card_data *mmc_card_cur,
mmc_controller_data *mmc_cont_cur)
{
unsigned char ret_val;
unsigned int argument;
unsigned int resp[4];
unsigned int trans_fact, trans_unit, retries = 2;
unsigned int max_dtr;
int dsor;
mmc_csd_reg_t Card_CSD;
unsigned char trans_speed;
ret_val = mmc_init_setup(mmc_cont_cur);
if (ret_val != 1)
return ret_val;
do {
ret_val = mmc_detect_card(mmc_card_cur, mmc_cont_cur);
retries--;
} while ((retries > 0) && (ret_val != 1));
argument = mmc_card_cur->RCA << 16;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD9, argument, resp);
if (ret_val != 1)
return ret_val;
((unsigned int *)&Card_CSD)[3] = resp[3];
((unsigned int *)&Card_CSD)[2] = resp[2];
((unsigned int *)&Card_CSD)[1] = resp[1];
((unsigned int *)&Card_CSD)[0] = resp[0];
if (mmc_card_cur->card_type == MMC_CARD)
mmc_card_cur->version = Card_CSD.spec_vers;
trans_speed = Card_CSD.tran_speed;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD4,
MMC_DSR_DEFAULT << 16, resp);
if (ret_val != 1)
return ret_val;
trans_unit = trans_speed & MMC_CSD_TRAN_SPEED_UNIT_MASK;
trans_fact = trans_speed & MMC_CSD_TRAN_SPEED_FACTOR_MASK;
if (trans_unit > MMC_CSD_TRAN_SPEED_UNIT_100MHZ)
return 0;
if ((trans_fact < MMC_CSD_TRAN_SPEED_FACTOR_1_0) ||
(trans_fact > MMC_CSD_TRAN_SPEED_FACTOR_8_0))
return 0;
trans_unit >>= 0;
trans_fact >>= 3;
max_dtr = tran_exp[trans_unit] * tran_mant[trans_fact];
if (OMAP_HSMMC2_BASE == mmc_cont_cur->base) {
max_dtr = tran_exp[trans_unit] * trans_speed; //&*&*&*SJ_20110502
}
dsor = OMAP_MMC_MASTER_CLOCK / max_dtr;
/* Following lines commented to build in x-loader; otherwise its including
* division library and creating a linking error.
if (OMAP_MMC_MASTER_CLOCK / dsor > max_dtr)
dsor++;
*/
if (dsor == 4)
dsor = 5;
else if (dsor == 3)
dsor = 4;
//&*&*&*SJ1_20110502
else if (dsor == 2)
;
else if (dsor == 1)
dsor = 2;
//&*&*&*SJ2_20110502
else
return 1;
ret_val = mmc_clock_config(mmc_cont_cur, CLK_MISC, dsor);
if (ret_val != 1)
return ret_val;
argument = mmc_card_cur->RCA << 16;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD7_SELECT,
argument, resp);
if (ret_val != 1)
return ret_val;
/* Configure the block length to 512 bytes */
argument = MMCSD_SECTOR_SIZE;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD16, argument, resp);
if (ret_val != 1)
return ret_val;
/* get the card size in sectors */
ret_val = mmc_read_cardsize(mmc_cont_cur->base,
mmc_card_cur, &Card_CSD);
if (ret_val != 1)
return ret_val;
return 1;
}
unsigned char configure_mmc(mmc_card_data *mmc_card_cur,
mmc_controller_data *mmc_cont_cur)
{
unsigned char ret_val;
unsigned int argument;
unsigned int resp[4];
unsigned int trans_fact, trans_unit, retries = 2;
unsigned int max_dtr;
int dsor;
mmc_csd_reg_t Card_CSD;
unsigned char trans_speed;
ret_val = mmc_init_setup(mmc_cont_cur);
if (ret_val != 1)
return ret_val;
do {
ret_val = mmc_detect_card(mmc_card_cur, mmc_cont_cur);
retries--;
} while ((retries > 0) && (ret_val != 1));
argument = mmc_card_cur->RCA << 16;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD9, argument, resp);
if (ret_val != 1)
return ret_val;
((unsigned int *)&Card_CSD)[3] = resp[3];
((unsigned int *)&Card_CSD)[2] = resp[2];
((unsigned int *)&Card_CSD)[1] = resp[1];
((unsigned int *)&Card_CSD)[0] = resp[0];
if (mmc_card_cur->card_type == MMC_CARD)
mmc_card_cur->version = Card_CSD.spec_vers;
trans_speed = Card_CSD.tran_speed;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD4,
MMC_DSR_DEFAULT << 16, resp);
if (ret_val != 1)
return ret_val;
trans_unit = trans_speed & MMC_CSD_TRAN_SPEED_UNIT_MASK;
trans_fact = trans_speed & MMC_CSD_TRAN_SPEED_FACTOR_MASK;
if (trans_unit > MMC_CSD_TRAN_SPEED_UNIT_100MHZ)
return 0;
if ((trans_fact < MMC_CSD_TRAN_SPEED_FACTOR_1_0) ||
(trans_fact > MMC_CSD_TRAN_SPEED_FACTOR_8_0))
return 0;
trans_unit >>= 0;
trans_fact >>= 3;
max_dtr = tran_exp[trans_unit] * tran_mant[trans_fact];
dsor = OMAP_MMC_MASTER_CLOCK / max_dtr;
if (OMAP_MMC_MASTER_CLOCK / dsor > max_dtr)
dsor++;
ret_val = mmc_clock_config(mmc_cont_cur, CLK_MISC, dsor);
if (ret_val != 1)
return ret_val;
argument = mmc_card_cur->RCA << 16;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD7_SELECT,
argument, resp);
if (ret_val != 1)
return ret_val;
if (mmc_cont_cur->slot == 1) {
/* Switch eMMC on OMAP4 to HS timing */
argument = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
(EXT_CSD_HS_TIMING << 16) | (1 << 8) |
EXT_CSD_CMD_SET_NORMAL;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD6,
argument, resp);
if (ret_val != 1)
return ret_val;
/* Switch the clock to 48MHz */
ret_val = mmc_clock_config(mmc_cont_cur, CLK_MISC, 2);
if (ret_val != 1)
return ret_val;
}
/* Configure the block length to 512 bytes */
argument = MMCSD_SECTOR_SIZE;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD16, argument, resp);
if (ret_val != 1)
return ret_val;
/* get the card size in sectors */
ret_val = mmc_read_cardsize(mmc_cont_cur->base,
mmc_card_cur, &Card_CSD);
if (ret_val != 1)
return ret_val;
if (mmc_cont_cur->slot == 1) {
/* Switch the eMMC on OMAP4 to 8-bit mode */
argument = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
(EXT_CSD_BUS_WIDTH << 16) | (EXT_CSD_BUS_WIDTH_8 << 8) |
EXT_CSD_CMD_SET_NORMAL;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD6,
argument, resp);
if (ret_val != 1)
return ret_val;
OMAP_HSMMC_CON(mmc_cont_cur->base) |= (1 << 5);
}
return 1;
}
unsigned char configure_mmc(mmc_card_data *mmc_card_cur,
mmc_controller_data *mmc_cont_cur)
{
unsigned char ret_val;
unsigned int argument;
unsigned int resp[4];
unsigned int trans_fact, trans_unit, retries = 2;
unsigned int max_dtr;
int dsor;
mmc_csd_reg_t Card_CSD;
unsigned char trans_speed;
ret_val = mmc_init_setup(mmc_cont_cur);
if (ret_val != 1)
return ret_val;
do {
ret_val = mmc_detect_card(mmc_card_cur, mmc_cont_cur);
retries--;
} while ((retries > 0) && (ret_val != 1));
argument = mmc_card_cur->RCA << 16;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD9, argument, resp);
if (ret_val != 1)
return ret_val;
((unsigned int *)&Card_CSD)[3] = resp[3];
((unsigned int *)&Card_CSD)[2] = resp[2];
((unsigned int *)&Card_CSD)[1] = resp[1];
((unsigned int *)&Card_CSD)[0] = resp[0];
if (mmc_card_cur->card_type == MMC_CARD)
mmc_card_cur->version = Card_CSD.spec_vers;
trans_speed = Card_CSD.tran_speed;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD4,
MMC_DSR_DEFAULT << 16, resp);
if (ret_val != 1)
return ret_val;
trans_unit = trans_speed & MMC_CSD_TRAN_SPEED_UNIT_MASK;
trans_fact = trans_speed & MMC_CSD_TRAN_SPEED_FACTOR_MASK;
if (trans_unit > MMC_CSD_TRAN_SPEED_UNIT_100MHZ)
return 0;
if ((trans_fact < MMC_CSD_TRAN_SPEED_FACTOR_1_0) ||
(trans_fact > MMC_CSD_TRAN_SPEED_FACTOR_8_0))
return 0;
trans_unit >>= 0;
trans_fact >>= 3;
max_dtr = tran_exp[trans_unit] * tran_mant[trans_fact];
dsor = OMAP_MMC_MASTER_CLOCK / max_dtr;
if (dsor == 4)
dsor = 5;
if (dsor == 3)
dsor = 4;
ret_val = mmc_clock_config(mmc_cont_cur, CLK_MISC, dsor);
if (ret_val != 1)
return ret_val;
argument = mmc_card_cur->RCA << 16;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD7_SELECT,
argument, resp);
if (ret_val != 1)
return ret_val;
/* Configure the block length to 512 bytes */
argument = MMCSD_SECTOR_SIZE;
ret_val = mmc_send_cmd(mmc_cont_cur->base, MMC_CMD16, argument, resp);
if (ret_val != 1)
return ret_val;
/* get the card size in sectors */
ret_val = mmc_read_cardsize(mmc_cont_cur->base,
mmc_card_cur, &Card_CSD);
if (ret_val != 1)
return ret_val;
return 1;
}
