diff options
Diffstat (limited to 'drivers/mmc/host/toshsd.h')
| -rw-r--r-- | drivers/mmc/host/toshsd.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/drivers/mmc/host/toshsd.h b/drivers/mmc/host/toshsd.h new file mode 100644 index 0000000000..3ba876eaa0 --- /dev/null +++ b/drivers/mmc/host/toshsd.h @@ -0,0 +1,172 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Toshiba PCI Secure Digital Host Controller Interface driver + * + * Copyright (C) 2014 Ondrej Zary + * Copyright (C) 2007 Richard Betts, All Rights Reserved. + * + * Based on asic3_mmc.c Copyright (c) 2005 SDG Systems, LLC + */ + +#define HCLK 33000000 /* 33 MHz (PCI clock) */ + +#define SD_PCICFG_CLKSTOP 0x40 /* 0x1f = clock controller, 0 = stop */ +#define SD_PCICFG_GATEDCLK 0x41 /* Gated clock */ +#define SD_PCICFG_CLKMODE 0x42 /* Control clock of SD controller */ +#define SD_PCICFG_PINSTATUS 0x44 /* R/O: read status of SD pins */ +#define SD_PCICFG_POWER1 0x48 +#define SD_PCICFG_POWER2 0x49 +#define SD_PCICFG_POWER3 0x4a +#define SD_PCICFG_CARDDETECT 0x4c +#define SD_PCICFG_SLOTS 0x50 /* R/O: define support slot number */ +#define SD_PCICFG_EXTGATECLK1 0xf0 /* Could be used for gated clock */ +#define SD_PCICFG_EXTGATECLK2 0xf1 /* Could be used for gated clock */ +#define SD_PCICFG_EXTGATECLK3 0xf9 /* Bit 1: double buffer/single buffer */ +#define SD_PCICFG_SDLED_ENABLE1 0xfa +#define SD_PCICFG_SDLED_ENABLE2 0xfe + +#define SD_PCICFG_CLKMODE_DIV_DISABLE BIT(0) +#define SD_PCICFG_CLKSTOP_ENABLE_ALL 0x1f +#define SD_PCICFG_LED_ENABLE1_START 0x12 +#define SD_PCICFG_LED_ENABLE2_START 0x80 + +#define SD_PCICFG_PWR1_33V 0x08 /* Set for 3.3 volts */ +#define SD_PCICFG_PWR1_OFF 0x00 /* Turn off power */ +#define SD_PCICFG_PWR2_AUTO 0x02 + +#define SD_CMD 0x00 /* also for SDIO */ +#define SD_ARG0 0x04 /* also for SDIO */ +#define SD_ARG1 0x06 /* also for SDIO */ +#define SD_STOPINTERNAL 0x08 +#define SD_BLOCKCOUNT 0x0a /* also for SDIO */ +#define SD_RESPONSE0 0x0c /* also for SDIO */ +#define SD_RESPONSE1 0x0e /* also for SDIO */ +#define SD_RESPONSE2 0x10 /* also for SDIO */ +#define SD_RESPONSE3 0x12 /* also for SDIO */ +#define SD_RESPONSE4 0x14 /* also for SDIO */ +#define SD_RESPONSE5 0x16 /* also for SDIO */ +#define SD_RESPONSE6 0x18 /* also for SDIO */ +#define SD_RESPONSE7 0x1a /* also for SDIO */ +#define SD_CARDSTATUS 0x1c /* also for SDIO */ +#define SD_BUFFERCTRL 0x1e /* also for SDIO */ +#define SD_INTMASKCARD 0x20 /* also for SDIO */ +#define SD_INTMASKBUFFER 0x22 /* also for SDIO */ +#define SD_CARDCLOCKCTRL 0x24 +#define SD_CARDXFERDATALEN 0x26 /* also for SDIO */ +#define SD_CARDOPTIONSETUP 0x28 /* also for SDIO */ +#define SD_ERRORSTATUS0 0x2c /* also for SDIO */ +#define SD_ERRORSTATUS1 0x2e /* also for SDIO */ +#define SD_DATAPORT 0x30 /* also for SDIO */ +#define SD_TRANSACTIONCTRL 0x34 /* also for SDIO */ +#define SD_SOFTWARERESET 0xe0 /* also for SDIO */ + +/* registers above marked "also for SDIO" and all SDIO registers below can be + * accessed at SDIO_BASE + reg address */ +#define SDIO_BASE 0x100 + +#define SDIO_CARDPORTSEL 0x02 +#define SDIO_CARDINTCTRL 0x36 +#define SDIO_CLOCKNWAITCTRL 0x38 +#define SDIO_HOSTINFORMATION 0x3a +#define SDIO_ERRORCTRL 0x3c +#define SDIO_LEDCTRL 0x3e + +#define SD_TRANSCTL_SET BIT(8) + +#define SD_CARDCLK_DIV_DISABLE BIT(15) +#define SD_CARDCLK_ENABLE_CLOCK BIT(8) +#define SD_CARDCLK_CLK_DIV_512 BIT(7) +#define SD_CARDCLK_CLK_DIV_256 BIT(6) +#define SD_CARDCLK_CLK_DIV_128 BIT(5) +#define SD_CARDCLK_CLK_DIV_64 BIT(4) +#define SD_CARDCLK_CLK_DIV_32 BIT(3) +#define SD_CARDCLK_CLK_DIV_16 BIT(2) +#define SD_CARDCLK_CLK_DIV_8 BIT(1) +#define SD_CARDCLK_CLK_DIV_4 BIT(0) +#define SD_CARDCLK_CLK_DIV_2 0 + +#define SD_CARDOPT_REQUIRED 0x000e +#define SD_CARDOPT_DATA_RESP_TIMEOUT(x) (((x) & 0x0f) << 4) /* 4 bits */ +#define SD_CARDOPT_C2_MODULE_ABSENT BIT(14) +#define SD_CARDOPT_DATA_XFR_WIDTH_1 (1 << 15) +#define SD_CARDOPT_DATA_XFR_WIDTH_4 (0 << 15) + +#define SD_CMD_TYPE_CMD (0 << 6) +#define SD_CMD_TYPE_ACMD (1 << 6) +#define SD_CMD_TYPE_AUTHEN (2 << 6) +#define SD_CMD_RESP_TYPE_NONE (3 << 8) +#define SD_CMD_RESP_TYPE_EXT_R1 (4 << 8) +#define SD_CMD_RESP_TYPE_EXT_R1B (5 << 8) +#define SD_CMD_RESP_TYPE_EXT_R2 (6 << 8) +#define SD_CMD_RESP_TYPE_EXT_R3 (7 << 8) +#define SD_CMD_RESP_TYPE_EXT_R6 (4 << 8) +#define SD_CMD_RESP_TYPE_EXT_R7 (4 << 8) +#define SD_CMD_DATA_PRESENT BIT(11) +#define SD_CMD_TRANSFER_READ BIT(12) +#define SD_CMD_MULTI_BLOCK BIT(13) +#define SD_CMD_SECURITY_CMD BIT(14) + +#define SD_STOPINT_ISSUE_CMD12 BIT(0) +#define SD_STOPINT_AUTO_ISSUE_CMD12 BIT(8) + +#define SD_CARD_RESP_END BIT(0) +#define SD_CARD_RW_END BIT(2) +#define SD_CARD_CARD_REMOVED_0 BIT(3) +#define SD_CARD_CARD_INSERTED_0 BIT(4) +#define SD_CARD_PRESENT_0 BIT(5) +#define SD_CARD_UNK6 BIT(6) +#define SD_CARD_WRITE_PROTECT BIT(7) +#define SD_CARD_CARD_REMOVED_3 BIT(8) +#define SD_CARD_CARD_INSERTED_3 BIT(9) +#define SD_CARD_PRESENT_3 BIT(10) + +#define SD_BUF_CMD_INDEX_ERR BIT(16) +#define SD_BUF_CRC_ERR BIT(17) +#define SD_BUF_STOP_BIT_END_ERR BIT(18) +#define SD_BUF_DATA_TIMEOUT BIT(19) +#define SD_BUF_OVERFLOW BIT(20) +#define SD_BUF_UNDERFLOW BIT(21) +#define SD_BUF_CMD_TIMEOUT BIT(22) +#define SD_BUF_UNK7 BIT(23) +#define SD_BUF_READ_ENABLE BIT(24) +#define SD_BUF_WRITE_ENABLE BIT(25) +#define SD_BUF_ILLEGAL_FUNCTION BIT(29) +#define SD_BUF_CMD_BUSY BIT(30) +#define SD_BUF_ILLEGAL_ACCESS BIT(31) + +#define SD_ERR0_RESP_CMD_ERR BIT(0) +#define SD_ERR0_RESP_NON_CMD12_END_BIT_ERR BIT(2) +#define SD_ERR0_RESP_CMD12_END_BIT_ERR BIT(3) +#define SD_ERR0_READ_DATA_END_BIT_ERR BIT(4) +#define SD_ERR0_WRITE_CRC_STATUS_END_BIT_ERR BIT(5) +#define SD_ERR0_RESP_NON_CMD12_CRC_ERR BIT(8) +#define SD_ERR0_RESP_CMD12_CRC_ERR BIT(9) +#define SD_ERR0_READ_DATA_CRC_ERR BIT(10) +#define SD_ERR0_WRITE_CMD_CRC_ERR BIT(11) + +#define SD_ERR1_NO_CMD_RESP BIT(16) +#define SD_ERR1_TIMEOUT_READ_DATA BIT(20) +#define SD_ERR1_TIMEOUT_CRS_STATUS BIT(21) +#define SD_ERR1_TIMEOUT_CRC_BUSY BIT(22) + +#define IRQ_DONT_CARE_BITS (SD_CARD_PRESENT_3 \ + | SD_CARD_WRITE_PROTECT \ + | SD_CARD_UNK6 \ + | SD_CARD_PRESENT_0 \ + | SD_BUF_UNK7 \ + | SD_BUF_CMD_BUSY) + +struct toshsd_host { + struct pci_dev *pdev; + struct mmc_host *mmc; + + spinlock_t lock; + + struct mmc_request *mrq;/* Current request */ + struct mmc_command *cmd;/* Current command */ + struct mmc_data *data; /* Current data request */ + + struct sg_mapping_iter sg_miter; /* for PIO */ + + void __iomem *ioaddr; /* mapped address */ +}; |