diff options
Diffstat (limited to 'include/asm-arm/arch-mx25')
| -rw-r--r-- | include/asm-arm/arch-mx25/mmc.h | 16 | ||||
| -rw-r--r-- | include/asm-arm/arch-mx25/sdhc.h | 218 |
2 files changed, 234 insertions, 0 deletions
diff --git a/include/asm-arm/arch-mx25/mmc.h b/include/asm-arm/arch-mx25/mmc.h new file mode 100644 index 0000000..5f12934 --- /dev/null +++ b/include/asm-arm/arch-mx25/mmc.h @@ -0,0 +1,16 @@ +/* + * (C) Copyright 2008-2009 Freescale Semiconductor, Inc. + * + * linux/drivers/mmc/mmc.h + * + * Author: Vladimir Shebordaev, Igor Oblakov + * Copyright: MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __MMC_MX25_3STACK_H__ +#define __MMC_MX25_3STACK_H__ + +#endif /* __MMC_MX51_3STACK_H__ */ diff --git a/include/asm-arm/arch-mx25/sdhc.h b/include/asm-arm/arch-mx25/sdhc.h new file mode 100644 index 0000000..5514ad4 --- /dev/null +++ b/include/asm-arm/arch-mx25/sdhc.h @@ -0,0 +1,218 @@ +/* + * Copyright 2008-2009 Freescale Semiconductor, Inc. + * + * 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; either version 2 of + * the License, or (at your option) any later version. + * + * 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 SDHC_H +#define SDHC_H + +#include <linux/types.h> + +#define ESDHC_SOFTWARE_RESET_DATA ((u32)0x04000000) +#define ESDHC_SOFTWARE_RESET_CMD ((u32)0x02000000) +#define ESDHC_SOFTWARE_RESET ((u32)0x01000000) +#define ESDHC_CMD_INHIBIT 0x00000003 +#define ESDHC_SYSCTL_INITA ((u32)0x08000000) +#define ESDHC_LITTLE_ENDIAN_MODE ((u32)0x00000020) +#define ESDHC_HW_BIG_ENDIAN_MODE ((u32)0x00000010) +#define ESDHC_BIG_ENDIAN_MODE ((u32)0x00000000) +#define ESDHC_ONE_BIT_SUPPORT ((u32)0x00000000) +#define ESDHC_FOUR_BIT_SUPPORT ((u32)0x00000002) +#define ESDHC_EIGHT_BIT_SUPPORT ((u32)0x00000004) +#define ESDHC_CLOCK_ENABLE 0x00000007 +#define ESDHC_FREQ_MASK 0xffff0007 +#define ESDHC_SYSCTL_FREQ_MASK ((u32)0x000FFFF0) +#define ESDHC_SYSCTL_IDENT_FREQ_TO1 ((u32)0x0000800e) +#define ESDHC_SYSCTL_OPERT_FREQ_TO1 ((u32)0x00000200) +#define ESDHC_SYSCTL_IDENT_FREQ_TO2 ((u32)0x00002040) +#define ESDHC_SYSCTL_OPERT_FREQ_TO2 ((u32)0x00000050) +#define ESDHC_INTERRUPT_ENABLE ((u32)0x007f0133) +#define ESDHC_CLEAR_INTERRUPT ((u32)0x117f01ff) +#define ESDHC_SYSCTL_DTOCV_VAL ((u32)0x000E0000) +#define ESDHC_IRQSTATEN_DTOESEN ((u32)0x00100000) +#define ESDHC_ENDIAN_MODE_MASK ((u32)0x00000030) +#define ESDHC_SYSCTRL_RSTC ((u32)0x02000000) +#define ESDHC_SYSCTRL_RSTD ((u32)0x04000000) +#define ESDHC_CONFIG_BLOCK 0x00010200 +#define ESDHC_OPER_TIMEOUT (96 * 100) +#define ESDHC_ACMD41_TIMEOUT (32000) +#define ESDHC_CMD1_TIMEOUT (32000) +#define ESDHC_BLOCK_SHIFT (16) +#define ESDHC_CARD_INIT_TIMEOUT (64) + +#define ESDHC_SYSCTL_SDCLKEN_MASK ((u32)0x00000008) +#define ESDHC_PRSSTAT_SDSTB_BIT ((u32)0x00000008) +#define ESDHC_SYSCTL_INPUT_CLOCK_MASK ((u32)0x00000007) + +#define ESDHC_BUS_WIDTH_MASK ((u32)0x00000006) +#define ESDHC_DATA_TRANSFER_SHIFT (4) +#define ESDHC_RESPONSE_FORMAT_SHIFT (16) +#define ESDHC_DATA_PRESENT_SHIFT (21) +#define ESDHC_CRC_CHECK_SHIFT (19) +#define ESDHC_CMD_INDEX_CHECK_SHIFT (20) +#define ESDHC_CMD_INDEX_SHIFT (24) +#define ESDHC_BLOCK_COUNT_ENABLE_SHIFT (1) +#define ESDHC_MULTI_SINGLE_BLOCK_SELECT_SHIFT (5) +#define BLK_LEN (512) +#define ESDHC_READ_WATER_MARK_LEVEL_BL_4 ((u32)0x00000001) +#define ESDHC_READ_WATER_MARK_LEVEL_BL_8 ((u32)0x00000002) +#define ESDHC_READ_WATER_MARK_LEVEL_BL_16 ((u32)0x00000004) +#define ESDHC_READ_WATER_MARK_LEVEL_BL_64 ((u32)0x00000010) +#define ESDHC_READ_WATER_MARK_LEVEL_BL_512 ((u32)0x00000080) + +#define ESDHC_WRITE_WATER_MARK_LEVEL_BL_4 ((u32)0x00010000) +#define ESDHC_WRITE_WATER_MARK_LEVEL_BL_8 ((u32)0x00020000) +#define ESDHC_WRITE_WATER_MARK_LEVEL_BL_16 ((u32)0x00040000) +#define ESDHC_WRITE_WATER_MARK_LEVEL_BL_64 ((u32)0x00100000) +#define ESDHC_WRITE_WATER_MARK_LEVEL_BL_512 ((u32)0x00800000) + +#define WRITE_READ_WATER_MARK_LEVEL 0x00800080 + +/* Present State register bit masks */ +#define ESDHC_PRESENT_STATE_CIHB ((u32)0x00000001) +#define ESDHC_PRESENT_STATE_CDIHB ((u32)0x00000002) +#define ONE (1) +#define ESDHC_FIFO_SIZE (128) + +#define ESDHC_STATUS_END_CMD_RESP_MSK ((u32)0x00000001) +#define ESDHC_STATUS_END_CMD_RESP_TIME_MSK ((u32)0x000F0001) +#define ESDHC_STATUS_TIME_OUT_RESP_MSK ((u32)0x00010000) +#define ESDHC_STATUS_RESP_CRC_ERR_MSK ((u32)0x00020000) +#define ESDHC_STATUS_RESP_CMD_INDEX_ERR_MSK ((u32)0x00080000) +#define ESDHC_STATUS_BUF_READ_RDY_MSK ((u32)0x00000020) +#define ESDHC_STATUS_BUF_WRITE_RDY_MSK ((u32)0x00000010) +#define ESDHC_STATUS_TRANSFER_COMPLETE_MSK ((u32)0x00000002) +#define ESDHC_STATUS_DATA_RW_MSK ((u32)0x00700002) +#define ESDHC_STATUS_TRANSFER_COMPLETE_MSK ((u32)0x00000002) +#define ESDHC_STATUS_TIME_OUT_READ_MASK ((u32)0x00100000) +#define ESDHC_STATUS_READ_CRC_ERR_MSK ((u32)0x00200000) +#define ESDHC_STATUS_RESP_CMD_END_BIT_ERR_MSK ((u32)0x00040000) +#define ESDHC_STATUS_RW_DATA_END_BIT_ERR_MSK ((u32)0x00400000) + +#define ESDHC_STATUS_TIME_OUT_READ (3200) +#define ESDHC_READ_DATA_TIME_OUT (3200) +#define ESDHC_WRITE_DATA_TIME_OUT (8000) + +#define ESDHC_CONFIG_BLOCK_512 ((u32)0x00000200) +#define ESDHC_CONFIG_BLOCK_64 ((u32)0x00000040) +#define ESDHC_CONFIG_BLOCK_8 ((u32)0x00000008) +#define ESDHC_CONFIG_BLOCK_4 ((u32)0x00000004) + +#define ESDHC_MAX_BLOCK_COUNT ((u32)0x0000ffff) + +typedef enum { + ESDHC1, + ESDHC2, + ESDHC3 +} esdhc_num_t; + +typedef enum { + WRITE, + READ, +} xfer_type_t; + +typedef enum { + RESPONSE_NONE, + RESPONSE_136, + RESPONSE_48, + RESPONSE_48_CHECK_BUSY +} response_format_t; + + +typedef enum { + DATA_PRESENT_NONE, + DATA_PRESENT +} data_present_select; + +typedef enum { + DISABLE, + ENABLE +} crc_check_enable, cmdindex_check_enable, block_count_enable; + +typedef enum { + SINGLE, + MULTIPLE +} multi_single_block_select; + +typedef struct { + u32 command; + u32 arg; + xfer_type_t data_transfer; + response_format_t response_format; + data_present_select data_present; + crc_check_enable crc_check; + cmdindex_check_enable cmdindex_check; + block_count_enable block_count_enable_check; + multi_single_block_select multi_single_block; +} esdhc_cmd_t; + +typedef struct { + response_format_t format; + u32 cmd_rsp0; + u32 cmd_rsp1; + u32 cmd_rsp2; + u32 cmd_rsp3; +} esdhc_resp_t; + +typedef enum { + BIG_ENDIAN, + HALF_WORD_BIG_ENDIAN, + LITTLE_ENDIAN +} endian_mode_t; + +typedef enum { + OPERATING_FREQ = 20000, /* in kHz */ + IDENTIFICATION_FREQ = 400 /* in kHz */ +} sdhc_freq_t; + +enum esdhc_data_status { + ESDHC_DATA_ERR = 3, + ESDHC_DATA_OK = 4 +}; + +enum esdhc_int_cntr_val { + ESDHC_INT_CNTR_END_CD_RESP = 0x4, + ESDHC_INT_CNTR_BUF_WR_RDY = 0x8 +}; + +enum esdhc_reset_status { + ESDHC_WRONG_RESET = 0, + ESDHC_CORRECT_RESET = 1 +}; + +typedef enum { + WEAK = 0, + STRONG = 1 +} esdhc_pullup_t; + +extern u32 interface_reset(void); +extern void interface_configure_clock(sdhc_freq_t); +extern void interface_read_response(esdhc_resp_t *); +extern u32 interface_send_cmd_wait_resp(esdhc_cmd_t *); +extern u32 interface_data_read(u32 *, u32); +extern void interface_config_block_info(u32, u32, u32); +extern u32 interface_data_write(u32 *, u32); +extern void interface_clear_interrupt(void); +extern void interface_initialization_active(void); +extern void esdhc_set_cmd_pullup(esdhc_pullup_t pull_up); +extern void esdhc_soft_reset(u32 mask); +extern u32 interface_set_bus_width(u32 bus_width); +/*================================================================================================*/ +#endif /* ESDHC_H */ |