| /* |
| * (C) Copyright 2008 |
| * Texas Instruments, <www.ti.com> |
| * Syed Mohammed Khasim <khasim@ti.com> |
| * |
| * 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 |
| */ |
| |
| #ifndef MMC_PROTOCOL_H |
| #define MMC_PROTOCOL_H |
| |
| #include "mmc_host_def.h" |
| |
| /* Responses */ |
| #define RSP_TYPE_NONE (RSP_TYPE_NORSP | CCCE_NOCHECK | CICE_NOCHECK) |
| #define RSP_TYPE_R1 (RSP_TYPE_LGHT48 | CCCE_CHECK | CICE_CHECK) |
| #define RSP_TYPE_R1B (RSP_TYPE_LGHT48B | CCCE_CHECK | CICE_CHECK) |
| #define RSP_TYPE_R2 (RSP_TYPE_LGHT136 | CCCE_CHECK | CICE_NOCHECK) |
| #define RSP_TYPE_R3 (RSP_TYPE_LGHT48 | CCCE_NOCHECK | CICE_NOCHECK) |
| #define RSP_TYPE_R4 (RSP_TYPE_LGHT48 | CCCE_NOCHECK | CICE_NOCHECK) |
| #define RSP_TYPE_R5 (RSP_TYPE_LGHT48 | CCCE_CHECK | CICE_CHECK) |
| #define RSP_TYPE_R6 (RSP_TYPE_LGHT48 | CCCE_CHECK | CICE_CHECK) |
| #define RSP_TYPE_R7 (RSP_TYPE_LGHT48 | CCCE_CHECK | CICE_CHECK) |
| |
| /* All supported commands */ |
| #define MMC_CMD0 (INDEX(0) | RSP_TYPE_NONE | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD1 (INDEX(1) | RSP_TYPE_R3 | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD2 (INDEX(2) | RSP_TYPE_R2 | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD3 (INDEX(3) | RSP_TYPE_R1 | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_SDCMD3 (INDEX(3) | RSP_TYPE_R6 | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD4 (INDEX(4) | RSP_TYPE_NONE | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD6 (INDEX(6) | RSP_TYPE_R1B | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD7_SELECT (INDEX(7) | RSP_TYPE_R1B | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD7_DESELECT \ |
| (INDEX(7) | RSP_TYPE_NONE | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD8 (INDEX(8) | RSP_TYPE_R1 | DP_DATA | DDIR_READ) |
| #define MMC_SDCMD8 (INDEX(8) | RSP_TYPE_R7 | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD9 (INDEX(9) | RSP_TYPE_R2 | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD12 (INDEX(12) | RSP_TYPE_R1B | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD13 (INDEX(13) | RSP_TYPE_R1 | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD15 (INDEX(15) | RSP_TYPE_NONE | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD16 (INDEX(16) | RSP_TYPE_R1 | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_CMD17 (INDEX(17) | RSP_TYPE_R1 | DP_DATA | DDIR_READ) |
| #define MMC_CMD24 (INDEX(24) | RSP_TYPE_R1 | DP_DATA | DDIR_WRITE) |
| #define MMC_ACMD6 (INDEX(6) | RSP_TYPE_R1 | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_ACMD41 (INDEX(41) | RSP_TYPE_R3 | DP_NO_DATA | DDIR_WRITE) |
| #define MMC_ACMD51 (INDEX(51) | RSP_TYPE_R1 | DP_DATA | DDIR_READ) |
| #define MMC_CMD55 (INDEX(55) | RSP_TYPE_R1 | DP_NO_DATA | DDIR_WRITE) |
| |
| #define MMC_AC_CMD_RCA_MASK (unsigned int)(0xFFFF << 16) |
| #define MMC_BC_CMD_DSR_MASK (unsigned int)(0xFFFF << 16) |
| #define MMC_DSR_DEFAULT (0x0404) |
| #define SD_CMD8_CHECK_PATTERN (0xAA) |
| #define SD_CMD8_2_7_3_6_V_RANGE (0x01 << 8) |
| |
| /* Clock Configurations and Macros */ |
| |
| #define MMC_CLOCK_REFERENCE (96) |
| #define MMC_RELATIVE_CARD_ADDRESS (0x1234) |
| #define MMC_INIT_SEQ_CLK (MMC_CLOCK_REFERENCE * 1000 / 80) |
| #define MMC_400kHz_CLK (MMC_CLOCK_REFERENCE * 1000 / 400) |
| #define CLKDR(r, f, u) ((((r)*100) / ((f)*(u))) + 1) |
| #define CLKD(f, u) (CLKDR(MMC_CLOCK_REFERENCE, f, u)) |
| |
| #define MMC_OCR_REG_ACCESS_MODE_MASK (0x3 << 29) |
| #define MMC_OCR_REG_ACCESS_MODE_BYTE (0x0 << 29) |
| #define MMC_OCR_REG_ACCESS_MODE_SECTOR (0x2 << 29) |
| |
| #define MMC_OCR_REG_HOST_CAPACITY_SUPPORT_MASK (0x1 << 30) |
| #define MMC_OCR_REG_HOST_CAPACITY_SUPPORT_BYTE (0x0 << 30) |
| #define MMC_OCR_REG_HOST_CAPACITY_SUPPORT_SECTOR (0x1 << 30) |
| |
| #define MMC_SD2_CSD_C_SIZE_LSB_MASK (0xFFFF) |
| #define MMC_SD2_CSD_C_SIZE_MSB_MASK (0x003F) |
| #define MMC_SD2_CSD_C_SIZE_MSB_OFFSET (16) |
| #define MMC_CSD_C_SIZE_LSB_MASK (0x0003) |
| #define MMC_CSD_C_SIZE_MSB_MASK (0x03FF) |
| #define MMC_CSD_C_SIZE_MSB_OFFSET (2) |
| |
| #define MMC_CSD_TRAN_SPEED_UNIT_MASK (0x07 << 0) |
| #define MMC_CSD_TRAN_SPEED_FACTOR_MASK (0x0F << 3) |
| #define MMC_CSD_TRAN_SPEED_UNIT_100MHZ (0x3 << 0) |
| #define MMC_CSD_TRAN_SPEED_FACTOR_1_0 (0x01 << 3) |
| #define MMC_CSD_TRAN_SPEED_FACTOR_8_0 (0x0F << 3) |
| |
| static const unsigned int tran_exp[] = { |
| 10000, 100000, 1000000, 10000000, |
| 0, 0, 0, 0 |
| }; |
| |
| static const unsigned char tran_mant[] = { |
| 0, 10, 12, 13, 15, 20, 25, 30, |
| 35, 40, 45, 50, 55, 60, 70, 80, |
| }; |
| |
| typedef struct { |
| unsigned not_used:1; |
| unsigned crc:7; |
| unsigned ecc:2; |
| unsigned file_format:2; |
| unsigned tmp_write_protect:1; |
| unsigned perm_write_protect:1; |
| unsigned copy:1; |
| unsigned file_format_grp:1; |
| unsigned content_prot_app:1; |
| unsigned reserved_1:4; |
| unsigned write_bl_partial:1; |
| unsigned write_bl_len:4; |
| unsigned r2w_factor:3; |
| unsigned default_ecc:2; |
| unsigned wp_grp_enable:1; |
| unsigned wp_grp_size:5; |
| unsigned erase_grp_mult:5; |
| unsigned erase_grp_size:5; |
| unsigned c_size_mult:3; |
| unsigned vdd_w_curr_max:3; |
| unsigned vdd_w_curr_min:3; |
| unsigned vdd_r_curr_max:3; |
| unsigned vdd_r_curr_min:3; |
| unsigned c_size_lsb:2; |
| unsigned c_size_msb:10; |
| unsigned reserved_2:2; |
| unsigned dsr_imp:1; |
| unsigned read_blk_misalign:1; |
| unsigned write_blk_misalign:1; |
| unsigned read_bl_partial:1; |
| unsigned read_bl_len:4; |
| unsigned ccc:12; |
| unsigned tran_speed:8; |
| unsigned nsac:8; |
| unsigned taac:8; |
| unsigned reserved_3:2; |
| unsigned spec_vers:4; |
| unsigned csd_structure:2; |
| } mmc_csd_reg_t; |
| |
| /* csd for sd2.0 */ |
| typedef struct { |
| unsigned not_used:1; |
| unsigned crc:7; |
| unsigned reserved_1:2; |
| unsigned file_format:2; |
| unsigned tmp_write_protect:1; |
| unsigned perm_write_protect:1; |
| unsigned copy:1; |
| unsigned file_format_grp:1; |
| unsigned reserved_2:5; |
| unsigned write_bl_partial:1; |
| unsigned write_bl_len:4; |
| unsigned r2w_factor:3; |
| unsigned reserved_3:2; |
| unsigned wp_grp_enable:1; |
| unsigned wp_grp_size:7; |
| unsigned sector_size:7; |
| unsigned erase_blk_len:1; |
| unsigned reserved_4:1; |
| unsigned c_size_lsb:16; |
| unsigned c_size_msb:6; |
| unsigned reserved_5:6; |
| unsigned dsr_imp:1; |
| unsigned read_blk_misalign:1; |
| unsigned write_blk_misalign:1; |
| unsigned read_bl_partial:1; |
| unsigned read_bl_len:4; |
| unsigned ccc:12; |
| unsigned tran_speed:8; |
| unsigned nsac:8; |
| unsigned taac:8; |
| unsigned reserved_6:6; |
| unsigned csd_structure:2; |
| } mmc_sd2_csd_reg_t; |
| |
| /* extended csd - 512 bytes long */ |
| typedef struct { |
| unsigned char reserved_1[181]; |
| unsigned char erasedmemorycontent; |
| unsigned char reserved_2; |
| unsigned char buswidthmode; |
| unsigned char reserved_3; |
| unsigned char highspeedinterfacetiming; |
| unsigned char reserved_4; |
| unsigned char powerclass; |
| unsigned char reserved_5; |
| unsigned char commandsetrevision; |
| unsigned char reserved_6; |
| unsigned char commandset; |
| unsigned char extendedcsdrevision; |
| unsigned char reserved_7; |
| unsigned char csdstructureversion; |
| unsigned char reserved_8; |
| unsigned char cardtype; |
| unsigned char reserved_9[3]; |
| unsigned char powerclass_52mhz_1_95v; |
| unsigned char powerclass_26mhz_1_95v; |
| unsigned char powerclass_52mhz_3_6v; |
| unsigned char powerclass_26mhz_3_6v; |
| unsigned char reserved_10; |
| unsigned char minreadperf_4b_26mhz; |
| unsigned char minwriteperf_4b_26mhz; |
| unsigned char minreadperf_8b_26mhz_4b_52mhz; |
| unsigned char minwriteperf_8b_26mhz_4b_52mhz; |
| unsigned char minreadperf_8b_52mhz; |
| unsigned char minwriteperf_8b_52mhz; |
| unsigned char reserved_11; |
| unsigned int sectorcount; |
| unsigned char reserved_12[288]; |
| unsigned char supportedcommandsets; |
| unsigned char reserved_13[7]; |
| } mmc_extended_csd_reg_t; |
| |
| /* mmc sd responce */ |
| typedef struct { |
| unsigned int ocr; |
| } mmc_resp_r3; |
| |
| typedef struct { |
| unsigned short cardstatus; |
| unsigned short newpublishedrca; |
| } mmc_resp_r6; |
| |
| extern mmc_card_data mmc_dev; |
| |
| unsigned char mmc_lowlevel_init(void); |
| unsigned char mmc_send_command(unsigned int cmd, unsigned int arg, |
| unsigned int *response); |
| unsigned char mmc_setup_clock(unsigned int iclk, unsigned short clkd); |
| unsigned char mmc_set_opendrain(unsigned char state); |
| unsigned char mmc_read_data(unsigned int *output_buf); |
| |
| #endif /*MMC_PROTOCOL_H */ |
