2 * include/linux/amba/mmci.h
7 #include <linux/mmc/host.h>
11 * These defines is places here due to access is needed from machine
12 * configuration files. The ST Micro version does not have ROD and
13 * reuse the voltage registers for direction settings.
15 #define MCI_ST_DATA2DIREN (1 << 2)
16 #define MCI_ST_CMDDIREN (1 << 3)
17 #define MCI_ST_DATA0DIREN (1 << 4)
18 #define MCI_ST_DATA31DIREN (1 << 5)
19 #define MCI_ST_FBCLKEN (1 << 7)
20 #define MCI_ST_DATA74DIREN (1 << 8)
22 /* Just some dummy forwarding */
26 * struct mmci_platform_data - platform configuration for the MMCI
27 * (also known as PL180) block.
28 * @f_max: the maximum operational frequency for this host in this
29 * platform configuration. When this is specified it takes precedence
30 * over the module parameter for the same frequency.
31 * @ocr_mask: available voltages on the 4 pins from the block, this
32 * is ignored if a regulator is used, see the MMC_VDD_* masks in
34 * @ios_handler: a callback function to act on specfic ios changes,
35 * used for example to control a levelshifter
36 * mask into a value to be binary (or set some other custom bits
37 * in MMCIPWR) or:ed and written into the MMCIPWR register of the
38 * block. May also control external power based on the power_mode.
39 * @status: if no GPIO read function was given to the block in
40 * gpio_wp (below) this function will be called to determine
41 * whether a card is present in the MMC slot or not
42 * @gpio_wp: read this GPIO pin to see if the card is write protected
43 * @gpio_cd: read this GPIO pin to detect card insertion
44 * @cd_invert: true if the gpio_cd pin value is active low
45 * @capabilities: the capabilities of the block as implemented in
46 * this platform, signify anything MMC_CAP_* from mmc/host.h
47 * @capabilities2: more capabilities, MMC_CAP2_* from mmc/host.h
48 * @sigdir: a bit field indicating for what bits in the MMC bus the host
49 * should enable signal direction indication.
50 * @dma_filter: function used to select an appropriate RX and TX
51 * DMA channel to be used for DMA, if and only if you're deploying the
53 * @dma_rx_param: parameter passed to the DMA allocation
54 * filter in order to select an appropriate RX channel. If
55 * there is a bidirectional RX+TX channel, then just specify
56 * this and leave dma_tx_param set to NULL
57 * @dma_tx_param: parameter passed to the DMA allocation
58 * filter in order to select an appropriate TX channel. If this
59 * is NULL the driver will attempt to use the RX channel as a
60 * bidirectional channel
62 struct mmci_platform_data {
64 unsigned int ocr_mask;
65 int (*ios_handler)(struct device *, struct mmc_ios *);
66 unsigned int (*status)(struct device *);
70 unsigned long capabilities;
71 unsigned long capabilities2;
73 bool (*dma_filter)(struct dma_chan *chan, void *filter_param);