From 819e36b8ceadb1d67db1ffe91b99c5282bfc6159 Mon Sep 17 00:00:00 2001 From: "H. Nikolaus Schaller" Date: Fri, 20 Apr 2012 14:10:36 +0200 Subject: tree moved to a better location --- x-loader/cpu/omap4/mmc.c | 547 ----------------------------------------------- 1 file changed, 547 deletions(-) delete mode 100644 x-loader/cpu/omap4/mmc.c (limited to 'x-loader/cpu/omap4/mmc.c') diff --git a/x-loader/cpu/omap4/mmc.c b/x-loader/cpu/omap4/mmc.c deleted file mode 100644 index 6842402..0000000 --- a/x-loader/cpu/omap4/mmc.c +++ /dev/null @@ -1,547 +0,0 @@ -/* - * (C) Copyright 2008 - * Texas Instruments, - * Syed Mohammed Khasim - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation's version 2 of - * the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include -#include -#include -#include -#include -#include - -const unsigned short mmc_transspeed_val[15][4] = { - {CLKD(10, 1), CLKD(10, 10), CLKD(10, 100), CLKD(10, 1000)}, - {CLKD(12, 1), CLKD(12, 10), CLKD(12, 100), CLKD(12, 1000)}, - {CLKD(13, 1), CLKD(13, 10), CLKD(13, 100), CLKD(13, 1000)}, - {CLKD(15, 1), CLKD(15, 10), CLKD(15, 100), CLKD(15, 1000)}, - {CLKD(20, 1), CLKD(20, 10), CLKD(20, 100), CLKD(20, 1000)}, - {CLKD(26, 1), CLKD(26, 10), CLKD(26, 100), CLKD(26, 1000)}, - {CLKD(30, 1), CLKD(30, 10), CLKD(30, 100), CLKD(30, 1000)}, - {CLKD(35, 1), CLKD(35, 10), CLKD(35, 100), CLKD(35, 1000)}, - {CLKD(40, 1), CLKD(40, 10), CLKD(40, 100), CLKD(40, 1000)}, - {CLKD(45, 1), CLKD(45, 10), CLKD(45, 100), CLKD(45, 1000)}, - {CLKD(52, 1), CLKD(52, 10), CLKD(52, 100), CLKD(52, 1000)}, - {CLKD(55, 1), CLKD(55, 10), CLKD(55, 100), CLKD(55, 1000)}, - {CLKD(60, 1), CLKD(60, 10), CLKD(60, 100), CLKD(60, 1000)}, - {CLKD(70, 1), CLKD(70, 10), CLKD(70, 100), CLKD(70, 1000)}, - {CLKD(80, 1), CLKD(80, 10), CLKD(80, 100), CLKD(80, 1000)} -}; - -mmc_card_data cur_card_data; -static block_dev_desc_t mmc_blk_dev; - -block_dev_desc_t *mmc_get_dev(int dev) -{ - return ((block_dev_desc_t *) &mmc_blk_dev); -} - -unsigned char mmc_board_init(void) -{ - unsigned int value = 0; - - return 1; -} - -void mmc_init_stream(void) -{ - volatile unsigned int mmc_stat; - - OMAP_HSMMC_CON |= INIT_INITSTREAM; - - OMAP_HSMMC_CMD = MMC_CMD0; - do { - mmc_stat = OMAP_HSMMC_STAT; - } while (!(mmc_stat & CC_MASK)); - - OMAP_HSMMC_STAT = CC_MASK; - - OMAP_HSMMC_CMD = MMC_CMD0; - do { - mmc_stat = OMAP_HSMMC_STAT; - } while (!(mmc_stat & CC_MASK)); - - OMAP_HSMMC_STAT = OMAP_HSMMC_STAT; - OMAP_HSMMC_CON &= ~INIT_INITSTREAM; -} - -unsigned char mmc_clock_config(unsigned int iclk, unsigned short clk_div) -{ - unsigned int val; - - mmc_reg_out(OMAP_HSMMC_SYSCTL, (ICE_MASK | DTO_MASK | CEN_MASK), - (ICE_STOP | DTO_15THDTO | CEN_DISABLE)); - - switch (iclk) { - case CLK_INITSEQ: - val = MMC_INIT_SEQ_CLK / 2; - break; - case CLK_400KHZ: - val = MMC_400kHz_CLK; - break; - case CLK_MISC: - val = clk_div; - break; - default: - return 0; - } - mmc_reg_out(OMAP_HSMMC_SYSCTL, - ICE_MASK | CLKD_MASK, (val << CLKD_OFFSET) | ICE_OSCILLATE); - - while ((OMAP_HSMMC_SYSCTL & ICS_MASK) == ICS_NOTREADY) { - } - - OMAP_HSMMC_SYSCTL |= CEN_ENABLE; - return 1; -} - -unsigned char mmc_init_setup(void) -{ - unsigned int reg_val; - - mmc_board_init(); - - OMAP_HSMMC_SYSCONFIG |= MMC_SOFTRESET; - while ((OMAP_HSMMC_SYSSTATUS & RESETDONE) == 0) ; - - OMAP_HSMMC_SYSCTL |= SOFTRESETALL; - while ((OMAP_HSMMC_SYSCTL & SOFTRESETALL) != 0x0) ; - - OMAP_HSMMC_HCTL = DTW_1_BITMODE | SDBP_PWROFF | SDVS_3V0; - OMAP_HSMMC_CAPA |= VS30_3V0SUP | VS18_1V8SUP; - - reg_val = OMAP_HSMMC_CON & RESERVED_MASK; - - OMAP_HSMMC_CON = CTPL_MMC_SD | reg_val | WPP_ACTIVEHIGH | - CDP_ACTIVEHIGH | MIT_CTO | DW8_1_4BITMODE | MODE_FUNC | - STR_BLOCK | HR_NOHOSTRESP | INIT_NOINIT | NOOPENDRAIN; - - mmc_clock_config(CLK_INITSEQ, 0); - OMAP_HSMMC_HCTL |= SDBP_PWRON; - - OMAP_HSMMC_IE = 0x307f0033; - - mmc_init_stream(); - return 1; -} - -unsigned char mmc_send_cmd(unsigned int cmd, unsigned int arg, - unsigned int *response) -{ - volatile unsigned int mmc_stat; - - while ((OMAP_HSMMC_PSTATE & DATI_MASK) == DATI_CMDDIS) { - } - - OMAP_HSMMC_BLK = BLEN_512BYTESLEN | NBLK_STPCNT; - OMAP_HSMMC_STAT = 0xFFFFFFFF; - OMAP_HSMMC_ARG = arg; - OMAP_HSMMC_CMD = cmd | CMD_TYPE_NORMAL | CICE_NOCHECK | - CCCE_NOCHECK | MSBS_SGLEBLK | ACEN_DISABLE | BCE_DISABLE | - DE_DISABLE; - - while (1) { - do { - mmc_stat = OMAP_HSMMC_STAT; - } while (mmc_stat == 0); - - if ((mmc_stat & ERRI_MASK) != 0) - return (unsigned char) mmc_stat; - - if (mmc_stat & CC_MASK) { - OMAP_HSMMC_STAT = CC_MASK; - response[0] = OMAP_HSMMC_RSP10; - if ((cmd & RSP_TYPE_MASK) == RSP_TYPE_LGHT136) { - response[1] = OMAP_HSMMC_RSP32; - response[2] = OMAP_HSMMC_RSP54; - response[3] = OMAP_HSMMC_RSP76; - } - break; - } - } - return 1; -} - -unsigned char mmc_read_data(unsigned int *output_buf) -{ - volatile unsigned int mmc_stat; - unsigned int read_count = 0; - - /* - * Start Polled Read - */ - while (1) { - do { - mmc_stat = OMAP_HSMMC_STAT; - } while (mmc_stat == 0); - - if ((mmc_stat & ERRI_MASK) != 0) - return (unsigned char) mmc_stat; - - if (mmc_stat & BRR_MASK) { - unsigned int k; - - OMAP_HSMMC_STAT |= BRR_MASK; - for (k = 0; k < MMCSD_SECTOR_SIZE / 4; k++) { - *output_buf = OMAP_HSMMC_DATA; - output_buf++; - read_count += 4; - } - } - - if (mmc_stat & BWR_MASK) - OMAP_HSMMC_STAT |= BWR_MASK; - - if (mmc_stat & TC_MASK) { - OMAP_HSMMC_STAT |= TC_MASK; - break; - } - } - return 1; -} - -unsigned char mmc_detect_card(mmc_card_data *mmc_card_cur) -{ - unsigned char err; - unsigned int argument = 0; - unsigned int ocr_value, ocr_recvd, ret_cmd41, hcs_val; - unsigned int resp[4]; - unsigned short retry_cnt = 2000; - - /* Set to Initialization Clock */ - err = mmc_clock_config(CLK_400KHZ, 0); - if (err != 1) - return err; - - mmc_card_cur->RCA = MMC_RELATIVE_CARD_ADDRESS; - argument = 0x00000000; - - ocr_value = (0x1FF << 15); - err = mmc_send_cmd(MMC_CMD0, argument, resp); - if (err != 1) - return err; - - argument = SD_CMD8_CHECK_PATTERN | SD_CMD8_2_7_3_6_V_RANGE; - err = mmc_send_cmd(MMC_SDCMD8, argument, resp); - hcs_val = (err == 1) ? - MMC_OCR_REG_HOST_CAPACITY_SUPPORT_SECTOR : - MMC_OCR_REG_HOST_CAPACITY_SUPPORT_BYTE; - - argument = 0x0000 << 16; - err = mmc_send_cmd(MMC_CMD55, argument, resp); - if (err == 1) { - mmc_card_cur->card_type = SD_CARD; - ocr_value |= hcs_val; - ret_cmd41 = MMC_ACMD41; - } else { - mmc_card_cur->card_type = MMC_CARD; - ocr_value |= MMC_OCR_REG_ACCESS_MODE_SECTOR; - ret_cmd41 = MMC_CMD1; - OMAP_HSMMC_CON &= ~OD; - OMAP_HSMMC_CON |= OPENDRAIN; - } - - argument = ocr_value; - err = mmc_send_cmd(ret_cmd41, argument, resp); - if (err != 1) - return err; - - ocr_recvd = ((mmc_resp_r3 *) resp)->ocr; - - while (!(ocr_recvd & (0x1 << 31)) && (retry_cnt > 0)) { - retry_cnt--; - if (mmc_card_cur->card_type == SD_CARD) { - argument = 0x0000 << 16; - err = mmc_send_cmd(MMC_CMD55, argument, resp); - } - - argument = ocr_value; - err = mmc_send_cmd(ret_cmd41, argument, resp); - if (err != 1) - return err; - ocr_recvd = ((mmc_resp_r3 *) resp)->ocr; - } - - if (!(ocr_recvd & (0x1 << 31))) - return 0; - - if (mmc_card_cur->card_type == MMC_CARD) { - if ((ocr_recvd & MMC_OCR_REG_ACCESS_MODE_MASK) == - MMC_OCR_REG_ACCESS_MODE_SECTOR) { - mmc_card_cur->mode = SECTOR_MODE; - } else { - mmc_card_cur->mode = BYTE_MODE; - } - - ocr_recvd &= ~MMC_OCR_REG_ACCESS_MODE_MASK; - } else { - if ((ocr_recvd & MMC_OCR_REG_HOST_CAPACITY_SUPPORT_MASK) - == MMC_OCR_REG_HOST_CAPACITY_SUPPORT_SECTOR) { - mmc_card_cur->mode = SECTOR_MODE; - } else { - mmc_card_cur->mode = BYTE_MODE; - } - ocr_recvd &= ~MMC_OCR_REG_HOST_CAPACITY_SUPPORT_MASK; - } - - ocr_recvd &= ~(0x1 << 31); - if (!(ocr_recvd & ocr_value)) - return 0; - - err = mmc_send_cmd(MMC_CMD2, argument, resp); - if (err != 1) - return err; - - if (mmc_card_cur->card_type == MMC_CARD) { - argument = mmc_card_cur->RCA << 16; - err = mmc_send_cmd(MMC_CMD3, argument, resp); - if (err != 1) - return err; - } else { - argument = 0x00000000; - err = mmc_send_cmd(MMC_SDCMD3, argument, resp); - if (err != 1) - return err; - - mmc_card_cur->RCA = ((mmc_resp_r6 *) resp)->newpublishedrca; - } - - OMAP_HSMMC_CON &= ~OD; - OMAP_HSMMC_CON |= NOOPENDRAIN; - return 1; -} - -unsigned char mmc_read_cardsize(mmc_card_data *mmc_dev_data, - mmc_csd_reg_t *cur_csd) -{ - mmc_extended_csd_reg_t ext_csd; - unsigned int size, count, blk_len, blk_no, card_size, argument; - unsigned char err; - unsigned int resp[4]; - - if (mmc_dev_data->mode == SECTOR_MODE) { - if (mmc_dev_data->card_type == SD_CARD) { - card_size = - (((mmc_sd2_csd_reg_t *) cur_csd)-> - c_size_lsb & MMC_SD2_CSD_C_SIZE_LSB_MASK) | - ((((mmc_sd2_csd_reg_t *) cur_csd)-> - c_size_msb & MMC_SD2_CSD_C_SIZE_MSB_MASK) - << MMC_SD2_CSD_C_SIZE_MSB_OFFSET); - mmc_dev_data->size = card_size * 1024; - if (mmc_dev_data->size == 0) - return 0; - } else { - argument = 0x00000000; - err = mmc_send_cmd(MMC_CMD8, argument, resp); - if (err != 1) - return err; - err = mmc_read_data((unsigned int *) &ext_csd); - if (err != 1) - return err; - mmc_dev_data->size = ext_csd.sectorcount; - - if (mmc_dev_data->size == 0) - mmc_dev_data->size = 8388608; - } - } else { - if (cur_csd->c_size_mult >= 8) - return 0; - - if (cur_csd->read_bl_len >= 12) - return 0; - - /* Compute size */ - count = 1 << (cur_csd->c_size_mult + 2); - card_size = (cur_csd->c_size_lsb & MMC_CSD_C_SIZE_LSB_MASK) | - ((cur_csd->c_size_msb & MMC_CSD_C_SIZE_MSB_MASK) - << MMC_CSD_C_SIZE_MSB_OFFSET); - blk_no = (card_size + 1) * count; - blk_len = 1 << cur_csd->read_bl_len; - size = blk_no * blk_len; - mmc_dev_data->size = size / MMCSD_SECTOR_SIZE; - if (mmc_dev_data->size == 0) - return 0; - } - return 1; -} - -unsigned char omap_mmc_read_sect(unsigned int start_sec, unsigned int num_bytes, - mmc_card_data *mmc_c, - unsigned long *output_buf) -{ - unsigned char err; - unsigned int argument; - unsigned int resp[4]; - unsigned int num_sec_val = - (num_bytes + (MMCSD_SECTOR_SIZE - 1)) / MMCSD_SECTOR_SIZE; - unsigned int sec_inc_val; - - if (num_sec_val == 0) - return 1; - - if (mmc_c->mode == SECTOR_MODE) { - argument = start_sec; - sec_inc_val = 1; - } else { - argument = start_sec * MMCSD_SECTOR_SIZE; - sec_inc_val = MMCSD_SECTOR_SIZE; - } - - while (num_sec_val) { - err = mmc_send_cmd(MMC_CMD17, argument, resp); - if (err != 1) - return err; - - err = mmc_read_data((unsigned int *) output_buf); - if (err != 1) - return err; - - output_buf += (MMCSD_SECTOR_SIZE / 4); - argument += sec_inc_val; - num_sec_val--; - } - return 1; -} - -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 = 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, 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 long mmc_bread(int dev_num, unsigned long blknr, lbaint_t blkcnt, - void *dst) -{ - omap_mmc_read_sect(blknr, (blkcnt * MMCSD_SECTOR_SIZE), &cur_card_data, - (unsigned long *) dst); - return 1; -} - -int mmc_init(int verbose) -{ - unsigned char ret; - - ret = configure_mmc(&cur_card_data); - - if (ret == 1) { - mmc_blk_dev.if_type = IF_TYPE_MMC; - mmc_blk_dev.part_type = PART_TYPE_DOS; - mmc_blk_dev.dev = 0; - mmc_blk_dev.lun = 0; - mmc_blk_dev.type = 0; - - /* FIXME fill in the correct size (is set to 32MByte) */ - mmc_blk_dev.blksz = MMCSD_SECTOR_SIZE; - mmc_blk_dev.lba = 0x10000; - mmc_blk_dev.removable = 0; - mmc_blk_dev.block_read = mmc_bread; - - fat_register_device(&mmc_blk_dev, 1); - return 1; - } - else - return 0; -} - -int mmc_read(ulong src, uchar *dst, int size) -{ - return 0; -} - -int mmc_write(uchar *src, ulong dst, int size) -{ - return 0; -} - -int mmc2info(ulong addr) -{ - return 0; -} -- cgit v1.1