diff options
Diffstat (limited to 'drivers/mmc/host/mx_sdhci.h')
| -rw-r--r-- | drivers/mmc/host/mx_sdhci.h | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/drivers/mmc/host/mx_sdhci.h b/drivers/mmc/host/mx_sdhci.h new file mode 100644 index 000000000000..a212cb2bb03a --- /dev/null +++ b/drivers/mmc/host/mx_sdhci.h @@ -0,0 +1,297 @@ +/* + * linux/drivers/mmc/host/mx_sdhci.h - Secure Digital Host + * Controller Interface driver + * + * Copyright (C) 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. + * + * 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. + */ + +/* + * Controller registers + */ + +#define SDHCI_DMA_ADDRESS 0x00 + +#define SDHCI_BLOCK_SIZE 0x04 +#define SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 13) | (blksz & 0x1FFF)) + +#define SDHCI_BLOCK_COUNT 0x04 + +#define SDHCI_ARGUMENT 0x08 + +#define SDHCI_TRANSFER_MODE 0x0C +#define SDHCI_TRNS_DMA 0x00000001 +#define SDHCI_TRNS_BLK_CNT_EN 0x00000002 +#define SDHCI_TRNS_ACMD12 0x00000004 +#define SDHCI_TRNS_DDR_EN 0x00000008 +#define SDHCI_TRNS_READ 0x00000010 +#define SDHCI_TRNS_MULTI 0x00000020 +#define SDHCI_TRNS_DPSEL 0x00200000 +#define SDHCI_TRNS_MASK 0xFFFF0000 + +#define SDHCI_COMMAND 0x0E +#define SDHCI_CMD_RESP_MASK 0x03 +#define SDHCI_CMD_CRC 0x08 +#define SDHCI_CMD_INDEX 0x10 +#define SDHCI_CMD_DATA 0x20 + +#define SDHCI_CMD_RESP_NONE 0x00 +#define SDHCI_CMD_RESP_LONG 0x01 +#define SDHCI_CMD_RESP_SHORT 0x02 +#define SDHCI_CMD_RESP_SHORT_BUSY 0x03 + +#define SDHCI_MAKE_CMD(c, f) (((c & 0xff) << 8) | (f & 0xff)) << 16 + +#define SDHCI_RESPONSE 0x10 + +#define SDHCI_BUFFER 0x20 + +#define SDHCI_PRESENT_STATE 0x24 +#define SDHCI_CMD_INHIBIT 0x00000001 +#define SDHCI_DATA_INHIBIT 0x00000002 +#define SDHCI_DATA_ACTIVE 0x00000004 +#define SDHCI_DOING_WRITE 0x00000100 +#define SDHCI_DOING_READ 0x00000200 +#define SDHCI_SPACE_AVAILABLE 0x00000400 +#define SDHCI_DATA_AVAILABLE 0x00000800 +#define SDHCI_CARD_PRESENT 0x00010000 +#define SDHCI_WRITE_PROTECT 0x00080000 +#define SDHCI_DAT0_IDLE 0x01000000 +#define SDHCI_CARD_INT_MASK 0x0E000000 +#define SDHCI_CARD_INT_ID 0x0C000000 + +#define SDHCI_HOST_CONTROL 0x28 +#define SDHCI_CTRL_LED 0x00000001 +#define SDHCI_CTRL_4BITBUS 0x00000002 +#define SDHCI_CTRL_8BITBUS 0x00000004 +#define SDHCI_CTRL_HISPD 0x00000004 +#define SDHCI_CTRL_DMA_MASK 0x18 +#define SDHCI_CTRL_SDMA 0x00 +#define SDHCI_CTRL_ADMA1 0x08 +#define SDHCI_CTRL_ADMA32 0x10 +#define SDHCI_CTRL_ADMA64 0x18 +#define SDHCI_CTRL_D3CD 0x00000008 +#define SDHCI_CTRL_ADMA 0x00000100 +/* wake up control */ +#define SDHCI_CTRL_WECINS 0x04000000 + +#define SDHCI_POWER_CONTROL 0x29 +#define SDHCI_POWER_ON 0x01 +#define SDHCI_POWER_180 0x0A +#define SDHCI_POWER_300 0x0C +#define SDHCI_POWER_330 0x0E + +#define SDHCI_BLOCK_GAP_CONTROL 0x2A + +#define SDHCI_WAKE_UP_CONTROL 0x2B + +#define SDHCI_CLOCK_CONTROL 0x2C +#define SDHCI_DIVIDER_SHIFT 8 +#define SDHCI_CLOCK_SD_EN 0x00000008 +#define SDHCI_CLOCK_PER_EN 0x00000004 +#define SDHCI_CLOCK_HLK_EN 0x00000002 +#define SDHCI_CLOCK_IPG_EN 0x00000001 +#define SDHCI_CLOCK_SDCLKFS1 0x00000100 +#define SDHCI_CLOCK_MASK 0x0000FFFF + +#define SDHCI_TIMEOUT_CONTROL 0x2E + +#define SDHCI_SOFTWARE_RESET 0x2F +#define SDHCI_RESET_ALL 0x01 +#define SDHCI_RESET_CMD 0x02 +#define SDHCI_RESET_DATA 0x04 + +#define SDHCI_INT_STATUS 0x30 +#define SDHCI_INT_ENABLE 0x34 +#define SDHCI_SIGNAL_ENABLE 0x38 +#define SDHCI_INT_RESPONSE 0x00000001 +#define SDHCI_INT_DATA_END 0x00000002 +#define SDHCI_INT_DMA_END 0x00000008 +#define SDHCI_INT_SPACE_AVAIL 0x00000010 +#define SDHCI_INT_DATA_AVAIL 0x00000020 +#define SDHCI_INT_CARD_INSERT 0x00000040 +#define SDHCI_INT_CARD_REMOVE 0x00000080 +#define SDHCI_INT_CARD_INT 0x00000100 +#define SDHCI_INT_ERROR 0x00008000 +#define SDHCI_INT_TIMEOUT 0x00010000 +#define SDHCI_INT_CRC 0x00020000 +#define SDHCI_INT_END_BIT 0x00040000 +#define SDHCI_INT_INDEX 0x00080000 +#define SDHCI_INT_DATA_TIMEOUT 0x00100000 +#define SDHCI_INT_DATA_CRC 0x00200000 +#define SDHCI_INT_DATA_END_BIT 0x00400000 +#define SDHCI_INT_BUS_POWER 0x00800000 +#define SDHCI_INT_ACMD12ERR 0x01000000 +#define SDHCI_INT_ADMA_ERROR 0x10000000 + +#define SDHCI_INT_NORMAL_MASK 0x00007FFF +#define SDHCI_INT_ERROR_MASK 0xFFFF8000 + +#define SDHCI_INT_CMD_MASK (SDHCI_INT_RESPONSE | SDHCI_INT_TIMEOUT | \ + SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX | \ + SDHCI_INT_ACMD12ERR) +#define SDHCI_INT_DATA_MASK (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \ + SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \ + SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \ + SDHCI_INT_DATA_END_BIT | SDHCI_INT_ADMA_ERROR) +#define SDHCI_INT_DATA_RE_MASK (SDHCI_INT_DMA_END | \ + SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL) + +#define SDHCI_ACMD12_ERR 0x3C +#define SDHCI_ACMD12_ERR_NE 0x00000001 +#define SDHCI_ACMD12_ERR_TOE 0x00000002 +#define SDHCI_ACMD12_ERR_EBE 0x00000004 +#define SDHCI_ACMD12_ERR_CE 0x00000008 +#define SDHCI_ACMD12_ERR_IE 0x00000010 +#define SDHCI_ACMD12_ERR_CNIBE 0x00000080 + +/* 3E-3F reserved */ + +#define SDHCI_CAPABILITIES 0x40 +#define SDHCI_TIMEOUT_CLK_MASK 0x0000003F +#define SDHCI_TIMEOUT_CLK_SHIFT 0 +#define SDHCI_TIMEOUT_CLK_UNIT 0x00000080 +#define SDHCI_CLOCK_BASE_MASK 0x00003F00 +#define SDHCI_CLOCK_BASE_SHIFT 8 +#define SDHCI_MAX_BLOCK_MASK 0x00030000 +#define SDHCI_MAX_BLOCK_SHIFT 16 +#define SDHCI_CAN_DO_ADMA2 0x00080000 +#define SDHCI_CAN_DO_ADMA1 0x00100000 +#define SDHCI_CAN_DO_HISPD 0x00200000 +#define SDHCI_CAN_DO_DMA 0x00400000 +#define SDHCI_CAN_VDD_330 0x01000000 +#define SDHCI_CAN_VDD_300 0x02000000 +#define SDHCI_CAN_VDD_180 0x04000000 +#define SDHCI_CAN_64BIT 0x10000000 + +/* 44-47 reserved for more caps */ +#define SDHCI_WML 0x44 +#define SDHCI_WML_4_WORDS 0x00040004 +#define SDHCI_WML_16_WORDS 0x00100010 +#define SDHCI_WML_64_WORDS 0x00400040 +#define SDHCI_WML_128_WORDS 0x00800080 + +#define SDHCI_MAX_CURRENT 0x48 + +/* 4C-4F reserved for more max current */ + +#define SDHCI_SET_ACMD12_ERROR 0x50 +#define SDHCI_SET_INT_ERROR 0x52 + +#define SDHCI_ADMA_ERROR 0x54 + +/* 55-57 reserved */ + +#define SDHCI_ADMA_ADDRESS 0x58 + +/* 60-FB reserved */ +#define SDHCI_DLL_CONTROL 0x60 +#define DLL_CTRL_ENABLE 0x00000001 +#define DLL_CTRL_RESET 0x00000002 +#define DLL_CTRL_SLV_FORCE_UPD 0x00000004 +#define DLL_CTRL_SLV_OVERRIDE 0x00000200 +#define DLL_CTRL_SLV_DLY_TAR 0x00000000 +#define DLL_CTRL_SLV_UP_INT 0x00200000 +#define DLL_CTRL_REF_UP_INT 0x20000000 + +#define SDHCI_DLL_STATUS 0x64 +#define DLL_STS_SLV_LOCK 0x00000001 +#define DLL_STS_REF_LOCK 0x00000002 + +/* ADMA Addr Descriptor Attribute Filed */ +enum { + FSL_ADMA_DES_ATTR_VALID = 0x01, + FSL_ADMA_DES_ATTR_END = 0x02, + FSL_ADMA_DES_ATTR_INT = 0x04, + FSL_ADMA_DES_ATTR_SET = 0x10, + FSL_ADMA_DES_ATTR_TRAN = 0x20, + FSL_ADMA_DES_ATTR_LINK = 0x30, +}; + +#define SDHCI_HOST_VERSION 0xFC +#define SDHCI_VENDOR_VER_MASK 0xFF00 +#define SDHCI_VENDOR_VER_SHIFT 8 +#define SDHCI_SPEC_VER_MASK 0x00FF +#define SDHCI_SPEC_VER_SHIFT 0 +#define SDHCI_SPEC_100 0 +#define SDHCI_SPEC_200 1 +#define ESDHC_VENDOR_V22 0x12 +#define ESDHC_VENDOR_V3 0x13 + +struct sdhci_chip; + +struct sdhci_host { + struct sdhci_chip *chip; + struct mmc_host *mmc; /* MMC structure */ + +#ifdef CONFIG_LEDS_CLASS + struct led_classdev led; /* LED control */ +#endif + + spinlock_t lock; /* Mutex */ + + int init_flag; /* Host has been initialized */ + int flags; /* Host attributes */ +#define SDHCI_USE_DMA (1<<0) /* Host is DMA capable */ +#define SDHCI_REQ_USE_DMA (1<<1) /* Use DMA for this req. */ +#define SDHCI_USE_EXTERNAL_DMA (1<<2) /* Use the External DMA */ +#define SDHCI_CD_PRESENT (1<<8) /* CD present */ +#define SDHCI_WP_ENABLED (1<<9) /* Write protect */ +#define SDHCI_CD_TIMEOUT (1<<10) /* cd timer is expired */ + + unsigned int max_clk; /* Max possible freq (MHz) */ + unsigned int min_clk; /* Min possible freq (MHz) */ + unsigned int timeout_clk; /* Timeout freq (KHz) */ + + unsigned int clock; /* Current clock (MHz) */ + unsigned short power; /* Current voltage */ + struct regulator *regulator_mmc; /*! Regulator */ + + struct mmc_request *mrq; /* Current request */ + struct mmc_command *cmd; /* Current command */ + struct mmc_data *data; /* Current data request */ + unsigned int data_early:1; /* Data finished before cmd */ + + unsigned int id; /* Id for SD/MMC block */ + int mode; /* SD/MMC mode */ + int dma; /* DMA channel number. */ + unsigned int dma_size; /* Number of Bytes in DMA */ + unsigned int dma_len; /* Length of the s-g list */ + unsigned int dma_dir; /* DMA transfer direction */ + + struct scatterlist *cur_sg; /* We're working on this */ + int num_sg; /* Entries left */ + int offset; /* Offset into current sg */ + int remain; /* Bytes left in current */ + + struct resource *res; /* IO map memory */ + int irq; /* Device IRQ */ + int detect_irq; /* Card Detect IRQ number. */ + int sdio_enable; /* sdio interrupt enable number. */ + struct clk *clk; /* Clock id */ + int bar; /* PCI BAR index */ + unsigned long addr; /* Bus address */ + void __iomem *ioaddr; /* Mapped address */ + + struct tasklet_struct card_tasklet; /* Tasklet structures */ + struct tasklet_struct finish_tasklet; + struct work_struct cd_wq; /* card detection work queue */ + /* Platform specific data */ + struct mxc_mmc_platform_data *plat_data; + + struct timer_list timer; /* Timer for timeouts */ + struct timer_list cd_timer; /* Timer for cd */ +}; + +struct sdhci_chip { + struct platform_device *pdev; + + unsigned long quirks; + + int num_slots; /* Slots on controller */ + struct sdhci_host *hosts[0]; /* Pointers to hosts */ +}; |