From: Steve Sakoman Date: Wed, 9 Jun 2010 19:54:58 +0000 (-0700) Subject: ARMV7: Restructure OMAP mmc driver to allow code sharing between OMAP3 and OMAP4 X-Git-Tag: v2010.09-rc1~88 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=bec3dc75996abf3cd878e54462708b1d9255bdc9;p=u-boot ARMV7: Restructure OMAP mmc driver to allow code sharing between OMAP3 and OMAP4 The architecture independent header is moved to drivers/mmc, and the architecture dependent headers reside in asm/arch-omap3 and asm/arch-omap4 Signed-off-by: Steve Sakoman Signed-off-by: Sandeep Paulraj --- diff --git a/arch/arm/include/asm/arch-omap3/mmc.h b/arch/arm/include/asm/arch-omap3/mmc.h deleted file mode 100644 index 196ffdcff6..0000000000 --- a/arch/arm/include/asm/arch-omap3/mmc.h +++ /dev/null @@ -1,242 +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 - */ - -#ifndef MMC_H -#define MMC_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) - -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; - -typedef union { - unsigned int resp[4]; - mmc_resp_r3 r3; - mmc_resp_r6 r6; - mmc_csd_reg_t Card_CSD; -} mmc_resp_t; - -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_H */ diff --git a/arch/arm/include/asm/arch-omap4/mmc_host_def.h b/arch/arm/include/asm/arch-omap4/mmc_host_def.h new file mode 100644 index 0000000000..e5d8b53b7e --- /dev/null +++ b/arch/arm/include/asm/arch-omap4/mmc_host_def.h @@ -0,0 +1,171 @@ +/* + * (C) Copyright 2010 + * 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 + */ + +#ifndef MMC_HOST_DEF_H +#define MMC_HOST_DEF_H + +/* + * OMAP HSMMC register definitions + */ + +#define OMAP_HSMMC1_BASE 0x4809C100 +#define OMAP_HSMMC2_BASE 0x480B4100 +#define OMAP_HSMMC3_BASE 0x480AD100 + +typedef struct hsmmc { + unsigned char res1[0x10]; + unsigned int sysconfig; /* 0x10 */ + unsigned int sysstatus; /* 0x14 */ + unsigned char res2[0x14]; + unsigned int con; /* 0x2C */ + unsigned char res3[0xD4]; + unsigned int blk; /* 0x104 */ + unsigned int arg; /* 0x108 */ + unsigned int cmd; /* 0x10C */ + unsigned int rsp10; /* 0x110 */ + unsigned int rsp32; /* 0x114 */ + unsigned int rsp54; /* 0x118 */ + unsigned int rsp76; /* 0x11C */ + unsigned int data; /* 0x120 */ + unsigned int pstate; /* 0x124 */ + unsigned int hctl; /* 0x128 */ + unsigned int sysctl; /* 0x12C */ + unsigned int stat; /* 0x130 */ + unsigned int ie; /* 0x134 */ + unsigned char res4[0x8]; + unsigned int capa; /* 0x140 */ +} hsmmc_t; + +/* + * OMAP HS MMC Bit definitions + */ +#define MMC_SOFTRESET (0x1 << 1) +#define RESETDONE (0x1 << 0) +#define NOOPENDRAIN (0x0 << 0) +#define OPENDRAIN (0x1 << 0) +#define OD (0x1 << 0) +#define INIT_NOINIT (0x0 << 1) +#define INIT_INITSTREAM (0x1 << 1) +#define HR_NOHOSTRESP (0x0 << 2) +#define STR_BLOCK (0x0 << 3) +#define MODE_FUNC (0x0 << 4) +#define DW8_1_4BITMODE (0x0 << 5) +#define MIT_CTO (0x0 << 6) +#define CDP_ACTIVEHIGH (0x0 << 7) +#define WPP_ACTIVEHIGH (0x0 << 8) +#define RESERVED_MASK (0x3 << 9) +#define CTPL_MMC_SD (0x0 << 11) +#define BLEN_512BYTESLEN (0x200 << 0) +#define NBLK_STPCNT (0x0 << 16) +#define DE_DISABLE (0x0 << 0) +#define BCE_DISABLE (0x0 << 1) +#define ACEN_DISABLE (0x0 << 2) +#define DDIR_OFFSET (4) +#define DDIR_MASK (0x1 << 4) +#define DDIR_WRITE (0x0 << 4) +#define DDIR_READ (0x1 << 4) +#define MSBS_SGLEBLK (0x0 << 5) +#define RSP_TYPE_OFFSET (16) +#define RSP_TYPE_MASK (0x3 << 16) +#define RSP_TYPE_NORSP (0x0 << 16) +#define RSP_TYPE_LGHT136 (0x1 << 16) +#define RSP_TYPE_LGHT48 (0x2 << 16) +#define RSP_TYPE_LGHT48B (0x3 << 16) +#define CCCE_NOCHECK (0x0 << 19) +#define CCCE_CHECK (0x1 << 19) +#define CICE_NOCHECK (0x0 << 20) +#define CICE_CHECK (0x1 << 20) +#define DP_OFFSET (21) +#define DP_MASK (0x1 << 21) +#define DP_NO_DATA (0x0 << 21) +#define DP_DATA (0x1 << 21) +#define CMD_TYPE_NORMAL (0x0 << 22) +#define INDEX_OFFSET (24) +#define INDEX_MASK (0x3f << 24) +#define INDEX(i) (i << 24) +#define DATI_MASK (0x1 << 1) +#define DATI_CMDDIS (0x1 << 1) +#define DTW_1_BITMODE (0x0 << 1) +#define DTW_4_BITMODE (0x1 << 1) +#define SDBP_PWROFF (0x0 << 8) +#define SDBP_PWRON (0x1 << 8) +#define SDVS_1V8 (0x5 << 9) +#define SDVS_3V0 (0x6 << 9) +#define ICE_MASK (0x1 << 0) +#define ICE_STOP (0x0 << 0) +#define ICS_MASK (0x1 << 1) +#define ICS_NOTREADY (0x0 << 1) +#define ICE_OSCILLATE (0x1 << 0) +#define CEN_MASK (0x1 << 2) +#define CEN_DISABLE (0x0 << 2) +#define CEN_ENABLE (0x1 << 2) +#define CLKD_OFFSET (6) +#define CLKD_MASK (0x3FF << 6) +#define DTO_MASK (0xF << 16) +#define DTO_15THDTO (0xE << 16) +#define SOFTRESETALL (0x1 << 24) +#define CC_MASK (0x1 << 0) +#define TC_MASK (0x1 << 1) +#define BWR_MASK (0x1 << 4) +#define BRR_MASK (0x1 << 5) +#define ERRI_MASK (0x1 << 15) +#define IE_CC (0x01 << 0) +#define IE_TC (0x01 << 1) +#define IE_BWR (0x01 << 4) +#define IE_BRR (0x01 << 5) +#define IE_CTO (0x01 << 16) +#define IE_CCRC (0x01 << 17) +#define IE_CEB (0x01 << 18) +#define IE_CIE (0x01 << 19) +#define IE_DTO (0x01 << 20) +#define IE_DCRC (0x01 << 21) +#define IE_DEB (0x01 << 22) +#define IE_CERR (0x01 << 28) +#define IE_BADA (0x01 << 29) + +#define VS30_3V0SUP (1 << 25) +#define VS18_1V8SUP (1 << 26) + +/* Driver definitions */ +#define MMCSD_SECTOR_SIZE 512 +#define MMC_CARD 0 +#define SD_CARD 1 +#define BYTE_MODE 0 +#define SECTOR_MODE 1 +#define CLK_INITSEQ 0 +#define CLK_400KHZ 1 +#define CLK_MISC 2 + +typedef struct { + unsigned int card_type; + unsigned int version; + unsigned int mode; + unsigned int size; + unsigned int RCA; +} mmc_card_data; + +#define mmc_reg_out(addr, mask, val)\ + writel((readl(addr) & (~(mask))) | ((val) & (mask)), (addr)) + +#endif /* MMC_HOST_DEF_H */ diff --git a/drivers/mmc/omap3_mmc.c b/drivers/mmc/omap3_mmc.c index 25b66f2759..4eda2160e3 100644 --- a/drivers/mmc/omap3_mmc.c +++ b/drivers/mmc/omap3_mmc.c @@ -30,7 +30,8 @@ #include #include #include -#include + +#include "omap3_mmc.h" const unsigned short mmc_transspeed_val[15][4] = { {CLKD(10, 1), CLKD(10, 10), CLKD(10, 100), CLKD(10, 1000)}, @@ -81,13 +82,14 @@ block_dev_desc_t *mmc_get_dev(int dev) unsigned char mmc_board_init(void) { - t2_t *t2_base = (t2_t *)T2_BASE; - struct prcm *prcm_base = (struct prcm *)PRCM_BASE; - #if defined(CONFIG_TWL4030_POWER) twl4030_power_mmc_init(); #endif +#if defined(CONFIG_OMAP34XX) + t2_t *t2_base = (t2_t *)T2_BASE; + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + writel(readl(&t2_base->pbias_lite) | PBIASLITEPWRDNZ1 | PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0, &t2_base->pbias_lite); @@ -105,6 +107,9 @@ unsigned char mmc_board_init(void) writel(readl(&prcm_base->iclken1_core) | EN_MMC1 | EN_MMC2 | EN_MMC3, &prcm_base->iclken1_core); +#endif + +/* TODO add appropriate OMAP4 init */ return 1; } diff --git a/drivers/mmc/omap3_mmc.h b/drivers/mmc/omap3_mmc.h new file mode 100644 index 0000000000..cbb3dc3a3a --- /dev/null +++ b/drivers/mmc/omap3_mmc.h @@ -0,0 +1,242 @@ +/* + * (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 + */ + +#ifndef MMC_H +#define MMC_H + +#include + +/* 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) + +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; + +typedef union { + unsigned int resp[4]; + mmc_resp_r3 r3; + mmc_resp_r6 r6; + mmc_csd_reg_t Card_CSD; +} mmc_resp_t; + +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_H */