--- /dev/null
+/*
+ * linux/drivers/mmc/host/sdhci.h - Secure Digital Host Controller Interface driver
+ *
+ * Header file for Host Controller registers and I/O accessors.
+ *
+ * Copyright (C) 2005-2008 Pierre Ossman, 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.
+ */
+#ifndef __SDHCI_HW_H
+#define __SDHCI_HW_H
+
+#include <linux/scatterlist.h>
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <linux/io.h>
+
+#include <linux/mmc/host.h>
+
+/*
+ * Controller registers
+ */
+
+#define SDHCI_DMA_ADDRESS 0x00
+#define SDHCI_ARGUMENT2 SDHCI_DMA_ADDRESS
+
+#define SDHCI_BLOCK_SIZE 0x04
+#define SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 12) | (blksz & 0xFFF))
+
+#define SDHCI_BLOCK_COUNT 0x06
+
+#define SDHCI_ARGUMENT 0x08
+
+#define SDHCI_TRANSFER_MODE 0x0C
+#define SDHCI_TRNS_DMA 0x01
+#define SDHCI_TRNS_BLK_CNT_EN 0x02
+#define SDHCI_TRNS_AUTO_CMD12 0x04
+#define SDHCI_TRNS_AUTO_CMD23 0x08
+#define SDHCI_TRNS_READ 0x10
+#define SDHCI_TRNS_MULTI 0x20
+
+#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_ABORTCMD 0xC0
+
+#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))
+#define SDHCI_GET_CMD(c) ((c>>8) & 0x3f)
+
+#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_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_DATA_LVL_MASK 0x00F00000
+#define SDHCI_DATA_LVL_SHIFT 20
+#define SDHCI_DATA_0_LVL_MASK 0x00100000
+
+#define SDHCI_HOST_CONTROL 0x28
+#define SDHCI_CTRL_LED 0x01
+#define SDHCI_CTRL_4BITBUS 0x02
+#define SDHCI_CTRL_HISPD 0x04
+#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_8BITBUS 0x20
+
+#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_WAKE_ON_INT 0x01
+#define SDHCI_WAKE_ON_INSERT 0x02
+#define SDHCI_WAKE_ON_REMOVE 0x04
+
+#define SDHCI_CLOCK_CONTROL 0x2C
+#define SDHCI_DIVIDER_SHIFT 8
+#define SDHCI_DIVIDER_HI_SHIFT 6
+#define SDHCI_DIV_MASK 0xFF
+#define SDHCI_DIV_MASK_LEN 8
+#define SDHCI_DIV_HI_MASK 0x300
+#define SDHCI_PROG_CLOCK_MODE 0x0020
+#define SDHCI_CLOCK_CARD_EN 0x0004
+#define SDHCI_CLOCK_INT_STABLE 0x0002
+#define SDHCI_CLOCK_INT_EN 0x0001
+
+#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_BLK_GAP 0x00000004
+#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 0x02000000
+
+#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)
+#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 | \
+ SDHCI_INT_BLK_GAP)
+#define SDHCI_INT_ALL_MASK ((unsigned int)-1)
+
+#define SDHCI_ACMD12_ERR 0x3C
+
+#define SDHCI_HOST_CONTROL2 0x3E
+#define SDHCI_CTRL_UHS_MASK 0x0007
+#define SDHCI_CTRL_UHS_SDR12 0x0000
+#define SDHCI_CTRL_UHS_SDR25 0x0001
+#define SDHCI_CTRL_UHS_SDR50 0x0002
+#define SDHCI_CTRL_UHS_SDR104 0x0003
+#define SDHCI_CTRL_UHS_DDR50 0x0004
+#define SDHCI_CTRL_HS400 0x0005 /* Non-standard */
+#define SDHCI_CTRL_VDD_180 0x0008
+#define SDHCI_CTRL_DRV_TYPE_MASK 0x0030
+#define SDHCI_CTRL_DRV_TYPE_B 0x0000
+#define SDHCI_CTRL_DRV_TYPE_A 0x0010
+#define SDHCI_CTRL_DRV_TYPE_C 0x0020
+#define SDHCI_CTRL_DRV_TYPE_D 0x0030
+#define SDHCI_CTRL_EXEC_TUNING 0x0040
+#define SDHCI_CTRL_TUNED_CLK 0x0080
+#define SDHCI_CTRL_PRESET_VAL_ENABLE 0x8000
+
+#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_V3_BASE_MASK 0x0000FF00
+#define SDHCI_CLOCK_BASE_SHIFT 8
+#define SDHCI_MAX_BLOCK_MASK 0x00030000
+#define SDHCI_MAX_BLOCK_SHIFT 16
+#define SDHCI_CAN_DO_8BIT 0x00040000
+#define SDHCI_CAN_DO_ADMA2 0x00080000
+#define SDHCI_CAN_DO_ADMA1 0x00100000
+#define SDHCI_CAN_DO_HISPD 0x00200000
+#define SDHCI_CAN_DO_SDMA 0x00400000
+#define SDHCI_CAN_VDD_330 0x01000000
+#define SDHCI_CAN_VDD_300 0x02000000
+#define SDHCI_CAN_VDD_180 0x04000000
+#define SDHCI_CAN_64BIT 0x10000000
+
+#define SDHCI_SUPPORT_SDR50 0x00000001
+#define SDHCI_SUPPORT_SDR104 0x00000002
+#define SDHCI_SUPPORT_DDR50 0x00000004
+#define SDHCI_DRIVER_TYPE_A 0x00000010
+#define SDHCI_DRIVER_TYPE_C 0x00000020
+#define SDHCI_DRIVER_TYPE_D 0x00000040
+#define SDHCI_RETUNING_TIMER_COUNT_MASK 0x00000F00
+#define SDHCI_RETUNING_TIMER_COUNT_SHIFT 8
+#define SDHCI_USE_SDR50_TUNING 0x00002000
+#define SDHCI_RETUNING_MODE_MASK 0x0000C000
+#define SDHCI_RETUNING_MODE_SHIFT 14
+#define SDHCI_CLOCK_MUL_MASK 0x00FF0000
+#define SDHCI_CLOCK_MUL_SHIFT 16
+#define SDHCI_SUPPORT_HS400 0x80000000 /* Non-standard */
+
+#define SDHCI_CAPABILITIES_1 0x44
+
+#define SDHCI_MAX_CURRENT 0x48
+#define SDHCI_MAX_CURRENT_LIMIT 0xFF
+#define SDHCI_MAX_CURRENT_330_MASK 0x0000FF
+#define SDHCI_MAX_CURRENT_330_SHIFT 0
+#define SDHCI_MAX_CURRENT_300_MASK 0x00FF00
+#define SDHCI_MAX_CURRENT_300_SHIFT 8
+#define SDHCI_MAX_CURRENT_180_MASK 0xFF0000
+#define SDHCI_MAX_CURRENT_180_SHIFT 16
+#define SDHCI_MAX_CURRENT_MULTIPLIER 4
+
+/* 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
+#define SDHCI_ADMA_ADDRESS_HI 0x5C
+
+/* 60-FB reserved */
+
+#define SDHCI_PRESET_FOR_SDR12 0x66
+#define SDHCI_PRESET_FOR_SDR25 0x68
+#define SDHCI_PRESET_FOR_SDR50 0x6A
+#define SDHCI_PRESET_FOR_SDR104 0x6C
+#define SDHCI_PRESET_FOR_DDR50 0x6E
+#define SDHCI_PRESET_FOR_HS400 0x74 /* Non-standard */
+#define SDHCI_PRESET_DRV_MASK 0xC000
+#define SDHCI_PRESET_DRV_SHIFT 14
+#define SDHCI_PRESET_CLKGEN_SEL_MASK 0x400
+#define SDHCI_PRESET_CLKGEN_SEL_SHIFT 10
+#define SDHCI_PRESET_SDCLK_FREQ_MASK 0x3FF
+#define SDHCI_PRESET_SDCLK_FREQ_SHIFT 0
+
+#define SDHCI_SLOT_INT_STATUS 0xFC
+
+#define SDHCI_HOST_VERSION 0xFE
+#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 SDHCI_SPEC_300 2
+
+/*
+ * End of controller registers.
+ */
+
+#define SDHCI_MAX_DIV_SPEC_200 256
+#define SDHCI_MAX_DIV_SPEC_300 2046
+
+/*
+ * Host SDMA buffer boundary. Valid values from 4K to 512K in powers of 2.
+ */
+#define SDHCI_DEFAULT_BOUNDARY_SIZE (512 * 1024)
+#define SDHCI_DEFAULT_BOUNDARY_ARG (ilog2(SDHCI_DEFAULT_BOUNDARY_SIZE) - 12)
+
+/* ADMA2 32-bit DMA descriptor size */
+#define SDHCI_ADMA2_32_DESC_SZ 8
+
+/* ADMA2 32-bit DMA alignment */
+#define SDHCI_ADMA2_32_ALIGN 4
+
+/* ADMA2 32-bit descriptor */
+struct sdhci_adma2_32_desc {
+ __le16 cmd;
+ __le16 len;
+ __le32 addr;
+} __packed __aligned(SDHCI_ADMA2_32_ALIGN);
+
+/* ADMA2 64-bit DMA descriptor size */
+#define SDHCI_ADMA2_64_DESC_SZ 12
+
+/* ADMA2 64-bit DMA alignment */
+#define SDHCI_ADMA2_64_ALIGN 8
+
+/*
+ * ADMA2 64-bit descriptor. Note 12-byte descriptor can't always be 8-byte
+ * aligned.
+ */
+struct sdhci_adma2_64_desc {
+ __le16 cmd;
+ __le16 len;
+ __le32 addr_lo;
+ __le32 addr_hi;
+} __packed __aligned(4);
+
+#define ADMA2_TRAN_VALID 0x21
+#define ADMA2_NOP_END_VALID 0x3
+#define ADMA2_END 0x2
+
+/*
+ * Maximum segments assuming a 512KiB maximum requisition size and a minimum
+ * 4KiB page size.
+ */
+#define SDHCI_MAX_SEGS 128
+
+struct sdhci_host_next {
+ unsigned int sg_count;
+ s32 cookie;
+};
+
+struct sdhci_host {
+ /* Data set by hardware interface driver */
+ const char *hw_name; /* Hardware bus name */
+
+ unsigned int quirks; /* Deviations from spec. */
+
+/* Controller doesn't honor resets unless we touch the clock register */
+#define SDHCI_QUIRK_CLOCK_BEFORE_RESET (1<<0)
+/* Controller has bad caps bits, but really supports DMA */
+#define SDHCI_QUIRK_FORCE_DMA (1<<1)
+/* Controller doesn't like to be reset when there is no card inserted. */
+#define SDHCI_QUIRK_NO_CARD_NO_RESET (1<<2)
+/* Controller doesn't like clearing the power reg before a change */
+#define SDHCI_QUIRK_SINGLE_POWER_WRITE (1<<3)
+/* Controller has flaky internal state so reset it on each ios change */
+#define SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS (1<<4)
+/* Controller has an unusable DMA engine */
+#define SDHCI_QUIRK_BROKEN_DMA (1<<5)
+/* Controller has an unusable ADMA engine */
+#define SDHCI_QUIRK_BROKEN_ADMA (1<<6)
+/* Controller can only DMA from 32-bit aligned addresses */
+#define SDHCI_QUIRK_32BIT_DMA_ADDR (1<<7)
+/* Controller can only DMA chunk sizes that are a multiple of 32 bits */
+#define SDHCI_QUIRK_32BIT_DMA_SIZE (1<<8)
+/* Controller can only ADMA chunks that are a multiple of 32 bits */
+#define SDHCI_QUIRK_32BIT_ADMA_SIZE (1<<9)
+/* Controller needs to be reset after each request to stay stable */
+#define SDHCI_QUIRK_RESET_AFTER_REQUEST (1<<10)
+/* Controller needs voltage and power writes to happen separately */
+#define SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER (1<<11)
+/* Controller provides an incorrect timeout value for transfers */
+#define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL (1<<12)
+/* Controller has an issue with buffer bits for small transfers */
+#define SDHCI_QUIRK_BROKEN_SMALL_PIO (1<<13)
+/* Controller does not provide transfer-complete interrupt when not busy */
+#define SDHCI_QUIRK_NO_BUSY_IRQ (1<<14)
+/* Controller has unreliable card detection */
+#define SDHCI_QUIRK_BROKEN_CARD_DETECTION (1<<15)
+/* Controller reports inverted write-protect state */
+#define SDHCI_QUIRK_INVERTED_WRITE_PROTECT (1<<16)
+/* Controller does not like fast PIO transfers */
+#define SDHCI_QUIRK_PIO_NEEDS_DELAY (1<<18)
+/* Controller has to be forced to use block size of 2048 bytes */
+#define SDHCI_QUIRK_FORCE_BLK_SZ_2048 (1<<20)
+/* Controller cannot do multi-block transfers */
+#define SDHCI_QUIRK_NO_MULTIBLOCK (1<<21)
+/* Controller can only handle 1-bit data transfers */
+#define SDHCI_QUIRK_FORCE_1_BIT_DATA (1<<22)
+/* Controller needs 10ms delay between applying power and clock */
+#define SDHCI_QUIRK_DELAY_AFTER_POWER (1<<23)
+/* Controller uses SDCLK instead of TMCLK for data timeouts */
+#define SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK (1<<24)
+/* Controller reports wrong base clock capability */
+#define SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN (1<<25)
+/* Controller cannot support End Attribute in NOP ADMA descriptor */
+#define SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC (1<<26)
+/* Controller is missing device caps. Use caps provided by host */
+#define SDHCI_QUIRK_MISSING_CAPS (1<<27)
+/* Controller uses Auto CMD12 command to stop the transfer */
+#define SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 (1<<28)
+/* Controller doesn't have HISPD bit field in HI-SPEED SD card */
+#define SDHCI_QUIRK_NO_HISPD_BIT (1<<29)
+/* Controller treats ADMA descriptors with length 0000h incorrectly */
+#define SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC (1<<30)
+/* The read-only detection via SDHCI_PRESENT_STATE register is unstable */
+#define SDHCI_QUIRK_UNSTABLE_RO_DETECT (1<<31)
+
+ unsigned int quirks2; /* More deviations from spec. */
+
+#define SDHCI_QUIRK2_HOST_OFF_CARD_ON (1<<0)
+#define SDHCI_QUIRK2_HOST_NO_CMD23 (1<<1)
+/* The system physically doesn't support 1.8v, even if the host does */
+#define SDHCI_QUIRK2_NO_1_8_V (1<<2)
+#define SDHCI_QUIRK2_PRESET_VALUE_BROKEN (1<<3)
+#define SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON (1<<4)
+/* Controller has a non-standard host control register */
+#define SDHCI_QUIRK2_BROKEN_HOST_CONTROL (1<<5)
+/* Controller does not support HS200 */
+#define SDHCI_QUIRK2_BROKEN_HS200 (1<<6)
+/* Controller does not support DDR50 */
+#define SDHCI_QUIRK2_BROKEN_DDR50 (1<<7)
+/* Stop command (CMD12) can set Transfer Complete when not using MMC_RSP_BUSY */
+#define SDHCI_QUIRK2_STOP_WITH_TC (1<<8)
+/* Controller does not support 64-bit DMA */
+#define SDHCI_QUIRK2_BROKEN_64_BIT_DMA (1<<9)
+/* need clear transfer mode register before send cmd */
+#define SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD (1<<10)
+/* Capability register bit-63 indicates HS400 support */
+#define SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 (1<<11)
+/* forced tuned clock */
+#define SDHCI_QUIRK2_TUNING_WORK_AROUND (1<<12)
+/* disable the block count for single block transactions */
+#define SDHCI_QUIRK2_SUPPORT_SINGLE (1<<13)
+/* Controller broken with using ACMD23 */
+#define SDHCI_QUIRK2_ACMD23_BROKEN (1<<14)
+
+ int irq; /* Device IRQ */
+ void __iomem *ioaddr; /* Mapped address */
+
+ const struct sdhci_ops *ops; /* Low level hw interface */
+
+ /* Internal data */
+ struct mmc_host *mmc; /* MMC structure */
+ u64 dma_mask; /* custom DMA mask */
+
+#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
+ struct led_classdev led; /* LED control */
+ char led_name[32];
+#endif
+
+ spinlock_t lock; /* Mutex */
+
+ int flags; /* Host attributes */
+#define SDHCI_USE_SDMA (1<<0) /* Host is SDMA capable */
+#define SDHCI_USE_ADMA (1<<1) /* Host is ADMA capable */
+#define SDHCI_REQ_USE_DMA (1<<2) /* Use DMA for this req. */
+#define SDHCI_DEVICE_DEAD (1<<3) /* Device unresponsive */
+#define SDHCI_SDR50_NEEDS_TUNING (1<<4) /* SDR50 needs tuning */
+#define SDHCI_NEEDS_RETUNING (1<<5) /* Host needs retuning */
+#define SDHCI_AUTO_CMD12 (1<<6) /* Auto CMD12 support */
+#define SDHCI_AUTO_CMD23 (1<<7) /* Auto CMD23 support */
+#define SDHCI_PV_ENABLED (1<<8) /* Preset value enabled */
+#define SDHCI_SDIO_IRQ_ENABLED (1<<9) /* SDIO irq enabled */
+#define SDHCI_SDR104_NEEDS_TUNING (1<<10) /* SDR104/HS200 needs tuning */
+#define SDHCI_USING_RETUNING_TIMER (1<<11) /* Host is using a retuning timer for the card */
+#define SDHCI_USE_64_BIT_DMA (1<<12) /* Use 64-bit DMA */
+#define SDHCI_HS400_TUNING (1<<13) /* Tuning for HS400 */
+
+ unsigned int version; /* SDHCI spec. version */
+
+ unsigned int max_clk; /* Max possible freq (MHz) */
+ unsigned int timeout_clk; /* Timeout freq (KHz) */
+ unsigned int clk_mul; /* Clock Muliplier value */
+
+ unsigned int clock; /* Current clock (MHz) */
+ u8 pwr; /* Current voltage */
+
+ bool runtime_suspended; /* Host is runtime suspended */
+ bool bus_on; /* Bus power prevents runtime suspend */
+ bool preset_enabled; /* Preset is enabled */
+
+ 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 busy_handle:1; /* Handling the order of Busy-end */
+
+ struct sg_mapping_iter sg_miter; /* SG state for PIO */
+ unsigned int blocks; /* remaining PIO blocks */
+
+ int sg_count; /* Mapped sg entries */
+
+ void *adma_table; /* ADMA descriptor table */
+ void *align_buffer; /* Bounce buffer */
+
+ size_t adma_table_sz; /* ADMA descriptor table size */
+ size_t align_buffer_sz; /* Bounce buffer size */
+
+ dma_addr_t adma_addr; /* Mapped ADMA descr. table */
+ dma_addr_t align_addr; /* Mapped bounce buffer */
+
+ unsigned int desc_sz; /* ADMA descriptor size */
+ unsigned int align_sz; /* ADMA alignment */
+ unsigned int align_mask; /* ADMA alignment mask */
+
+ struct tasklet_struct finish_tasklet; /* Tasklet structures */
+
+ struct timer_list timer; /* Timer for timeouts */
+
+ u32 caps; /* Alternative CAPABILITY_0 */
+ u32 caps1; /* Alternative CAPABILITY_1 */
+
+ unsigned int ocr_avail_sdio; /* OCR bit masks */
+ unsigned int ocr_avail_sd;
+ unsigned int ocr_avail_mmc;
+ u32 ocr_mask; /* available voltages */
+
+ unsigned timing; /* Current timing */
+
+ u32 thread_isr;
+
+ /* cached registers */
+ u32 ier;
+
+ wait_queue_head_t buf_ready_int; /* Waitqueue for Buffer Read Ready interrupt */
+ unsigned int tuning_done; /* Condition flag set when CMD19 succeeds */
+
+ unsigned int tuning_count; /* Timer count for re-tuning */
+ unsigned int tuning_mode; /* Re-tuning mode supported by host */
+#define SDHCI_TUNING_MODE_1 0
+ struct timer_list tuning_timer; /* Timer for tuning */
+
+ struct sdhci_host_next next_data;
+ unsigned long private[0] ____cacheline_aligned;
+};
+
+struct sdhci_ops {
+#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
+ u32 (*read_l)(struct sdhci_host *host, int reg);
+ u16 (*read_w)(struct sdhci_host *host, int reg);
+ u8 (*read_b)(struct sdhci_host *host, int reg);
+ void (*write_l)(struct sdhci_host *host, u32 val, int reg);
+ void (*write_w)(struct sdhci_host *host, u16 val, int reg);
+ void (*write_b)(struct sdhci_host *host, u8 val, int reg);
+#endif
+
+ void (*set_clock)(struct sdhci_host *host, unsigned int clock);
+
+ int (*enable_dma)(struct sdhci_host *host);
+ unsigned int (*get_max_clock)(struct sdhci_host *host);
+ unsigned int (*get_min_clock)(struct sdhci_host *host);
+ unsigned int (*get_timeout_clock)(struct sdhci_host *host);
+ unsigned int (*get_max_timeout_count)(struct sdhci_host *host);
+ void (*set_timeout)(struct sdhci_host *host,
+ struct mmc_command *cmd);
+ void (*set_bus_width)(struct sdhci_host *host, int width);
+ void (*platform_send_init_74_clocks)(struct sdhci_host *host,
+ u8 power_mode);
+ unsigned int (*get_ro)(struct sdhci_host *host);
+ void (*reset)(struct sdhci_host *host, u8 mask);
+ int (*platform_execute_tuning)(struct sdhci_host *host, u32 opcode);
+ void (*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs);
+ void (*hw_reset)(struct sdhci_host *host);
+ void (*adma_workaround)(struct sdhci_host *host, u32 intmask);
+ void (*platform_init)(struct sdhci_host *host);
+ void (*card_event)(struct sdhci_host *host);
+ void (*voltage_switch)(struct sdhci_host *host);
+};
+
+#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
+
+static inline void sdhci_writel(struct sdhci_host *host, u32 val, int reg)
+{
+ if (unlikely(host->ops->write_l))
+ host->ops->write_l(host, val, reg);
+ else
+ writel(val, host->ioaddr + reg);
+}
+
+static inline void sdhci_writew(struct sdhci_host *host, u16 val, int reg)
+{
+ if (unlikely(host->ops->write_w))
+ host->ops->write_w(host, val, reg);
+ else
+ writew(val, host->ioaddr + reg);
+}
+
+static inline void sdhci_writeb(struct sdhci_host *host, u8 val, int reg)
+{
+ if (unlikely(host->ops->write_b))
+ host->ops->write_b(host, val, reg);
+ else
+ writeb(val, host->ioaddr + reg);
+}
+
+static inline u32 sdhci_readl(struct sdhci_host *host, int reg)
+{
+ if (unlikely(host->ops->read_l))
+ return host->ops->read_l(host, reg);
+ else
+ return readl(host->ioaddr + reg);
+}
+
+static inline u16 sdhci_readw(struct sdhci_host *host, int reg)
+{
+ if (unlikely(host->ops->read_w))
+ return host->ops->read_w(host, reg);
+ else
+ return readw(host->ioaddr + reg);
+}
+
+static inline u8 sdhci_readb(struct sdhci_host *host, int reg)
+{
+ if (unlikely(host->ops->read_b))
+ return host->ops->read_b(host, reg);
+ else
+ return readb(host->ioaddr + reg);
+}
+
+#else
+
+static inline void sdhci_writel(struct sdhci_host *host, u32 val, int reg)
+{
+ writel(val, host->ioaddr + reg);
+}
+
+static inline void sdhci_writew(struct sdhci_host *host, u16 val, int reg)
+{
+ writew(val, host->ioaddr + reg);
+}
+
+static inline void sdhci_writeb(struct sdhci_host *host, u8 val, int reg)
+{
+ writeb(val, host->ioaddr + reg);
+}
+
+static inline u32 sdhci_readl(struct sdhci_host *host, int reg)
+{
+ return readl(host->ioaddr + reg);
+}
+
+static inline u16 sdhci_readw(struct sdhci_host *host, int reg)
+{
+ return readw(host->ioaddr + reg);
+}
+
+static inline u8 sdhci_readb(struct sdhci_host *host, int reg)
+{
+ return readb(host->ioaddr + reg);
+}
+
+#endif /* CONFIG_MMC_SDHCI_IO_ACCESSORS */
+
+extern struct sdhci_host *sdhci_alloc_host(struct device *dev,
+ size_t priv_size);
+extern void sdhci_free_host(struct sdhci_host *host);
+
+static inline void *sdhci_priv(struct sdhci_host *host)
+{
+ return (void *)host->private;
+}
+
+extern void sdhci_card_detect(struct sdhci_host *host);
+extern int sdhci_add_host(struct sdhci_host *host);
+extern void sdhci_remove_host(struct sdhci_host *host, int dead);
+extern void sdhci_send_command(struct sdhci_host *host,
+ struct mmc_command *cmd);
+
+static inline bool sdhci_sdio_irq_enabled(struct sdhci_host *host)
+{
+ return !!(host->flags & SDHCI_SDIO_IRQ_ENABLED);
+}
+
+void sdhci_set_clock(struct sdhci_host *host, unsigned int clock);
+void sdhci_set_bus_width(struct sdhci_host *host, int width);
+void sdhci_reset(struct sdhci_host *host, u8 mask);
+void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing);
+
+#ifdef CONFIG_PM
+extern int sdhci_suspend_host(struct sdhci_host *host);
+extern int sdhci_resume_host(struct sdhci_host *host);
+extern void sdhci_enable_irq_wakeups(struct sdhci_host *host);
+extern int sdhci_runtime_suspend_host(struct sdhci_host *host);
+extern int sdhci_runtime_resume_host(struct sdhci_host *host);
+#endif
+
+#endif /* __SDHCI_HW_H */
Code Review / kvmfornfv.git / blobdiff