diff options
Diffstat (limited to 'include/linux/mmc/dw_mmc.h')
| -rw-r--r-- | include/linux/mmc/dw_mmc.h | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h index bdd7ceeb99e4..6dc9b80568a0 100644 --- a/include/linux/mmc/dw_mmc.h +++ b/include/linux/mmc/dw_mmc.h @@ -11,8 +11,8 @@ * (at your option) any later version. */ -#ifndef _LINUX_MMC_DW_MMC_H_ -#define _LINUX_MMC_DW_MMC_H_ +#ifndef LINUX_MMC_DW_MMC_H +#define LINUX_MMC_DW_MMC_H #define MAX_MCI_SLOTS 2 @@ -48,6 +48,7 @@ struct mmc_data; * @data: The data currently being transferred, or NULL if no data * transfer is in progress. * @use_dma: Whether DMA channel is initialized or not. + * @using_dma: Whether DMA is in use for the current transfer. * @sg_dma: Bus address of DMA buffer. * @sg_cpu: Virtual address of DMA buffer. * @dma_ops: Pointer to platform-specific DMA callbacks. @@ -71,10 +72,16 @@ struct mmc_data; * rate and timeout calculations. * @current_speed: Configured rate of the controller. * @num_slots: Number of slots available. + * @verid: Denote Version ID. + * @data_offset: Set the offset of DATA register according to VERID. * @pdev: Platform device associated with the MMC controller. * @pdata: Platform data associated with the MMC controller. * @slot: Slots sharing this MMC controller. + * @fifo_depth: depth of FIFO. * @data_shift: log2 of FIFO item size. + * @part_buf_start: Start index in part_buf. + * @part_buf_count: Bytes of partial data in part_buf. + * @part_buf: Simple buffer for partial fifo reads/writes. * @push_data: Pointer to FIFO push function. * @pull_data: Pointer to FIFO pull function. * @quirks: Set of quirks that apply to specific versions of the IP. @@ -117,6 +124,7 @@ struct dw_mci { /* DMA interface members*/ int use_dma; + int using_dma; dma_addr_t sg_dma; void *sg_cpu; @@ -131,7 +139,7 @@ struct dw_mci { u32 stop_cmdr; u32 dir_status; struct tasklet_struct tasklet; - struct tasklet_struct card_tasklet; + struct work_struct card_work; unsigned long pending_events; unsigned long completed_events; enum dw_mci_state state; @@ -141,12 +149,22 @@ struct dw_mci { u32 current_speed; u32 num_slots; u32 fifoth_val; + u16 verid; + u16 data_offset; struct platform_device *pdev; struct dw_mci_board *pdata; struct dw_mci_slot *slot[MAX_MCI_SLOTS]; /* FIFO push and pull */ + int fifo_depth; int data_shift; + u8 part_buf_start; + u8 part_buf_count; + union { + u16 part_buf16; + u32 part_buf32; + u64 part_buf; + }; void (*push_data)(struct dw_mci *host, void *buf, int cnt); void (*pull_data)(struct dw_mci *host, void *buf, int cnt); @@ -196,6 +214,12 @@ struct dw_mci_board { unsigned int bus_hz; /* Bus speed */ unsigned int caps; /* Capabilities */ + /* + * Override fifo depth. If 0, autodetect it from the FIFOTH register, + * but note that this may not be reliable after a bootloader has used + * it. + */ + unsigned int fifo_depth; /* delay in mS before detecting cards after interrupt */ u32 detect_delay_ms; @@ -219,4 +243,4 @@ struct dw_mci_board { struct block_settings *blk_settings; }; -#endif /* _LINUX_MMC_DW_MMC_H_ */ +#endif /* LINUX_MMC_DW_MMC_H */ |