Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
6ef297f8 | 2 | * include/linux/amba/mmci.h |
1da177e4 | 3 | */ |
6ef297f8 LW |
4 | #ifndef AMBA_MMCI_H |
5 | #define AMBA_MMCI_H | |
1da177e4 | 6 | |
f74d132c | 7 | #include <linux/mmc/host.h> |
1da177e4 | 8 | |
4d1a3a0d UH |
9 | |
10 | /* | |
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. | |
14 | */ | |
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) | |
21 | ||
c8ebae37 RK |
22 | /* Just some dummy forwarding */ |
23 | struct dma_chan; | |
24 | ||
808d97cc LW |
25 | /** |
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 | |
33 | * mmc/host.h | |
bc521818 UH |
34 | * @ios_handler: a callback function to act on specfic ios changes, |
35 | * used for example to control a levelshifter | |
bb8f563c RV |
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. | |
808d97cc LW |
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 | |
29719445 | 44 | * @cd_invert: true if the gpio_cd pin value is active low |
808d97cc LW |
45 | * @capabilities: the capabilities of the block as implemented in |
46 | * this platform, signify anything MMC_CAP_* from mmc/host.h | |
5a092627 | 47 | * @capabilities2: more capabilities, MMC_CAP2_* from mmc/host.h |
4d1a3a0d UH |
48 | * @sigdir: a bit field indicating for what bits in the MMC bus the host |
49 | * should enable signal direction indication. | |
25985edc | 50 | * @dma_filter: function used to select an appropriate RX and TX |
c8ebae37 RK |
51 | * DMA channel to be used for DMA, if and only if you're deploying the |
52 | * generic DMA engine | |
53 | * @dma_rx_param: parameter passed to the DMA allocation | |
25985edc | 54 | * filter in order to select an appropriate RX channel. If |
c8ebae37 RK |
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 | |
25985edc | 58 | * filter in order to select an appropriate TX channel. If this |
c8ebae37 RK |
59 | * is NULL the driver will attempt to use the RX channel as a |
60 | * bidirectional channel | |
808d97cc | 61 | */ |
6ef297f8 | 62 | struct mmci_platform_data { |
808d97cc LW |
63 | unsigned int f_max; |
64 | unsigned int ocr_mask; | |
bc521818 | 65 | int (*ios_handler)(struct device *, struct mmc_ios *); |
1da177e4 | 66 | unsigned int (*status)(struct device *); |
7fb2bbf4 RK |
67 | int gpio_wp; |
68 | int gpio_cd; | |
29719445 | 69 | bool cd_invert; |
9e6c82cd | 70 | unsigned long capabilities; |
5a092627 | 71 | unsigned long capabilities2; |
4d1a3a0d | 72 | u32 sigdir; |
c8ebae37 RK |
73 | bool (*dma_filter)(struct dma_chan *chan, void *filter_param); |
74 | void *dma_rx_param; | |
75 | void *dma_tx_param; | |
1da177e4 LT |
76 | }; |
77 | ||
78 | #endif |