diff options
Diffstat (limited to 'arch/arm/plat-mxc/include/mach/iomux-v3.h')
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/iomux-v3.h | 50 |
1 files changed, 30 insertions, 20 deletions
diff --git a/arch/arm/plat-mxc/include/mach/iomux-v3.h b/arch/arm/plat-mxc/include/mach/iomux-v3.h index 6beaf8cd69b5..7cd84547658f 100644 --- a/arch/arm/plat-mxc/include/mach/iomux-v3.h +++ b/arch/arm/plat-mxc/include/mach/iomux-v3.h @@ -68,31 +68,33 @@ struct pad_desc { /* * Use to set PAD control */ +#define PAD_CTL_DRIVE_VOLTAGE_3_3_V 0 +#define PAD_CTL_DRIVE_VOLTAGE_1_8_V 1 -#define PAD_CTL_DVS (1 << 13) -#define PAD_CTL_HYS (1 << 8) +#define PAD_CTL_NO_HYSTERESIS 0 +#define PAD_CTL_HYSTERESIS 1 -#define PAD_CTL_PKE (1 << 7) -#define PAD_CTL_PUE (1 << 6) -#define PAD_CTL_PUS_100K_DOWN (0 << 4) -#define PAD_CTL_PUS_360K_DOWN (0 << 4) -#define PAD_CTL_PUS_47K_UP (1 << 4) -#define PAD_CTL_PUS_75K_UP (1 << 4) -#define PAD_CTL_PUS_100K_UP (2 << 4) -#define PAD_CTL_PUS_22K_UP (3 << 4) +#define PAD_CTL_PULL_DISABLED 0x0 +#define PAD_CTL_PULL_KEEPER 0xa +#define PAD_CTL_PULL_DOWN_100K 0xc +#define PAD_CTL_PULL_UP_47K 0xd +#define PAD_CTL_PULL_UP_100K 0xe +#define PAD_CTL_PULL_UP_22K 0xf -#define PAD_CTL_ODE (1 << 3) +#define PAD_CTL_OUTPUT_CMOS 0 +#define PAD_CTL_OUTPUT_OPEN_DRAIN 1 -#define PAD_CTL_DSE_LOW (0 << 1) -#define PAD_CTL_DSE_MED (1 << 1) -#define PAD_CTL_DSE_HIGH (2 << 1) -#define PAD_CTL_DSE_MAX (3 << 1) +#define PAD_CTL_DRIVE_STRENGTH_NORM 0 +#define PAD_CTL_DRIVE_STRENGTH_HIGH 1 +#define PAD_CTL_DRIVE_STRENGTH_MAX 2 -#define PAD_CTL_SRE_FAST (1 << 0) -#define PAD_CTL_SRE_SLOW (0 << 0) +#define PAD_CTL_SLEW_RATE_SLOW 0 +#define PAD_CTL_SLEW_RATE_FAST 1 /* - * setups a single pad in the iomuxer + * setups a single pad: + * - reserves the pad so that it is not claimed by another driver + * - setups the iomux according to the configuration */ int mxc_iomux_v3_setup_pad(struct pad_desc *pad); @@ -103,9 +105,17 @@ int mxc_iomux_v3_setup_pad(struct pad_desc *pad); int mxc_iomux_v3_setup_multiple_pads(struct pad_desc *pad_list, unsigned count); /* - * Initialise the iomux controller + * releases a single pad: + * - make it available for a future use by another driver + * - DOES NOT reconfigure the IOMUX in its reset state */ -void mxc_iomux_v3_init(void __iomem *iomux_v3_base); +void mxc_iomux_v3_release_pad(struct pad_desc *pad); + +/* + * releases multiple pads + * convenvient way to call the above function with tables + */ +void mxc_iomux_v3_release_multiple_pads(struct pad_desc *pad_list, int count); #endif /* __MACH_IOMUX_V3_H__*/ |