| /* |
| * include/linux/amba/mmci.h |
| */ |
| #ifndef AMBA_MMCI_H |
| #define AMBA_MMCI_H |
| |
| #include <linux/mmc/host.h> |
| |
| |
| /* |
| * These defines is places here due to access is needed from machine |
| * configuration files. The ST Micro version does not have ROD and |
| * reuse the voltage registers for direction settings. |
| */ |
| #define MCI_ST_DATA2DIREN (1 << 2) |
| #define MCI_ST_CMDDIREN (1 << 3) |
| #define MCI_ST_DATA0DIREN (1 << 4) |
| #define MCI_ST_DATA31DIREN (1 << 5) |
| #define MCI_ST_FBCLKEN (1 << 7) |
| #define MCI_ST_DATA74DIREN (1 << 8) |
| |
| /* Just some dummy forwarding */ |
| struct dma_chan; |
| |
| /** |
| * struct mmci_platform_data - platform configuration for the MMCI |
| * (also known as PL180) block. |
| * @f_max: the maximum operational frequency for this host in this |
| * platform configuration. When this is specified it takes precedence |
| * over the module parameter for the same frequency. |
| * @ocr_mask: available voltages on the 4 pins from the block, this |
| * is ignored if a regulator is used, see the MMC_VDD_* masks in |
| * mmc/host.h |
| * @ios_handler: a callback function to act on specfic ios changes, |
| * used for example to control a levelshifter |
| * mask into a value to be binary (or set some other custom bits |
| * in MMCIPWR) or:ed and written into the MMCIPWR register of the |
| * block. May also control external power based on the power_mode. |
| * @status: if no GPIO read function was given to the block in |
| * gpio_wp (below) this function will be called to determine |
| * whether a card is present in the MMC slot or not |
| * @gpio_wp: read this GPIO pin to see if the card is write protected |
| * @gpio_cd: read this GPIO pin to detect card insertion |
| * @cd_invert: true if the gpio_cd pin value is active low |
| * @capabilities: the capabilities of the block as implemented in |
| * this platform, signify anything MMC_CAP_* from mmc/host.h |
| * @capabilities2: more capabilities, MMC_CAP2_* from mmc/host.h |
| * @sigdir: a bit field indicating for what bits in the MMC bus the host |
| * should enable signal direction indication. |
| * @dma_filter: function used to select an appropriate RX and TX |
| * DMA channel to be used for DMA, if and only if you're deploying the |
| * generic DMA engine |
| * @dma_rx_param: parameter passed to the DMA allocation |
| * filter in order to select an appropriate RX channel. If |
| * there is a bidirectional RX+TX channel, then just specify |
| * this and leave dma_tx_param set to NULL |
| * @dma_tx_param: parameter passed to the DMA allocation |
| * filter in order to select an appropriate TX channel. If this |
| * is NULL the driver will attempt to use the RX channel as a |
| * bidirectional channel |
| */ |
| struct mmci_platform_data { |
| unsigned int f_max; |
| unsigned int ocr_mask; |
| int (*ios_handler)(struct device *, struct mmc_ios *); |
| unsigned int (*status)(struct device *); |
| int gpio_wp; |
| int gpio_cd; |
| bool cd_invert; |
| unsigned long capabilities; |
| unsigned long capabilities2; |
| u32 sigdir; |
| bool (*dma_filter)(struct dma_chan *chan, void *filter_param); |
| void *dma_rx_param; |
| void *dma_tx_param; |
| }; |
| |
| #endif |