diff options
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/mci.h')
-rw-r--r-- | arch/arm/plat-samsung/include/plat/mci.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/include/plat/mci.h b/arch/arm/plat-samsung/include/plat/mci.h new file mode 100644 index 000000000000..c42d31711944 --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/mci.h | |||
@@ -0,0 +1,52 @@ | |||
1 | #ifndef _ARCH_MCI_H | ||
2 | #define _ARCH_MCI_H | ||
3 | |||
4 | /** | ||
5 | * struct s3c24xx_mci_pdata - sd/mmc controller platform data | ||
6 | * @no_wprotect: Set this to indicate there is no write-protect switch. | ||
7 | * @no_detect: Set this if there is no detect switch. | ||
8 | * @wprotect_invert: Invert the default sense of the write protect switch. | ||
9 | * @detect_invert: Invert the default sense of the write protect switch. | ||
10 | * @use_dma: Set to allow the use of DMA. | ||
11 | * @gpio_detect: GPIO number for the card detect line. | ||
12 | * @gpio_wprotect: GPIO number for the write protect line. | ||
13 | * @ocr_avail: The mask of the available power states, non-zero to use. | ||
14 | * @set_power: Callback to control the power mode. | ||
15 | * | ||
16 | * The @gpio_detect is used for card detection when @no_wprotect is unset, | ||
17 | * and the default sense is that 0 returned from gpio_get_value() means | ||
18 | * that a card is inserted. If @detect_invert is set, then the value from | ||
19 | * gpio_get_value() is inverted, which makes 1 mean card inserted. | ||
20 | * | ||
21 | * The driver will use @gpio_wprotect to signal whether the card is write | ||
22 | * protected if @no_wprotect is not set. A 0 returned from gpio_get_value() | ||
23 | * means the card is read/write, and 1 means read-only. The @wprotect_invert | ||
24 | * will invert the value returned from gpio_get_value(). | ||
25 | * | ||
26 | * Card power is set by @ocr_availa, using MCC_VDD_ constants if it is set | ||
27 | * to a non-zero value, otherwise the default of 3.2-3.4V is used. | ||
28 | */ | ||
29 | struct s3c24xx_mci_pdata { | ||
30 | unsigned int no_wprotect:1; | ||
31 | unsigned int no_detect:1; | ||
32 | unsigned int wprotect_invert:1; | ||
33 | unsigned int detect_invert:1; /* set => detect active high */ | ||
34 | unsigned int use_dma:1; | ||
35 | |||
36 | unsigned int gpio_detect; | ||
37 | unsigned int gpio_wprotect; | ||
38 | unsigned long ocr_avail; | ||
39 | void (*set_power)(unsigned char power_mode, | ||
40 | unsigned short vdd); | ||
41 | }; | ||
42 | |||
43 | /** | ||
44 | * s3c24xx_mci_set_platdata - set platform data for mmc/sdi device | ||
45 | * @pdata: The platform data | ||
46 | * | ||
47 | * Copy the platform data supplied by @pdata so that this can be marked | ||
48 | * __initdata. | ||
49 | */ | ||
50 | extern void s3c24xx_mci_set_platdata(struct s3c24xx_mci_pdata *pdata); | ||
51 | |||
52 | #endif /* _ARCH_NCI_H */ | ||