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author | Sascha Hauer <s.hauer@pengutronix.de> | 2012-02-23 10:04:27 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-04-12 22:07:31 +0200 |
commit | 652f5f5abebcd73b94e24cc1b554119fa63b015f (patch) | |
tree | f35efd65d9989d2bcef54edeca321b7eb5a87043 /arch/arm/mach-imx/include/mach/iomux-v3.h | |
parent | 6c727af2c27d84f26a04a8075890f575ebf91814 (diff) | |
download | barebox-652f5f5abebcd73b94e24cc1b554119fa63b015f.tar.gz barebox-652f5f5abebcd73b94e24cc1b554119fa63b015f.tar.xz |
ARM i.MX iomux-v3: Sync to kernel
This means using an uint64_t instead of a struct pad_desc which allows
us to change pad settings using logic operations. Also with this we
can more easily keep the iomux tables in sync with the kernel.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-imx/include/mach/iomux-v3.h')
-rw-r--r-- | arch/arm/mach-imx/include/mach/iomux-v3.h | 78 |
1 files changed, 47 insertions, 31 deletions
diff --git a/arch/arm/mach-imx/include/mach/iomux-v3.h b/arch/arm/mach-imx/include/mach/iomux-v3.h index 8a1adc2ed0..f2f0ccf0ee 100644 --- a/arch/arm/mach-imx/include/mach/iomux-v3.h +++ b/arch/arm/mach-imx/include/mach/iomux-v3.h @@ -42,41 +42,59 @@ * If <padname> or <padmode> refers to a GPIO, it is named * GPIO_<unit>_<num> * - */ + * IOMUX/PAD Bit field definitions + * + * MUX_CTRL_OFS: 0..11 (12) + * PAD_CTRL_OFS: 12..23 (12) + * SEL_INPUT_OFS: 24..35 (12) + * MUX_MODE + SION: 36..40 (5) + * PAD_CTRL + NO_PAD_CTRL: 41..57 (17) + * SEL_INP: 58..61 (4) + * reserved: 63 (1) +*/ + +typedef u64 iomux_v3_cfg_t; + +#define MUX_CTRL_OFS_SHIFT 0 +#define MUX_CTRL_OFS_MASK ((iomux_v3_cfg_t)0xfff << MUX_CTRL_OFS_SHIFT) +#define MUX_PAD_CTRL_OFS_SHIFT 12 +#define MUX_PAD_CTRL_OFS_MASK ((iomux_v3_cfg_t)0xfff << MUX_PAD_CTRL_OFS_SHIFT) +#define MUX_SEL_INPUT_OFS_SHIFT 24 +#define MUX_SEL_INPUT_OFS_MASK ((iomux_v3_cfg_t)0xfff << MUX_SEL_INPUT_OFS_SHIFT) -struct pad_desc { - unsigned mux_ctrl_ofs:12; /* IOMUXC_SW_MUX_CTL_PAD offset */ - unsigned mux_mode:8; - unsigned pad_ctrl_ofs:12; /* IOMUXC_SW_PAD_CTRL offset */ -#define NO_PAD_CTRL (1 << 16) - unsigned pad_ctrl:17; - unsigned select_input_ofs:12; /* IOMUXC_SELECT_INPUT offset */ - unsigned select_input:3; -}; - -#define IOMUX_PAD(_pad_ctrl_ofs, _mux_ctrl_ofs, _mux_mode, _select_input_ofs, \ - _select_input, _pad_ctrl) \ - { \ - .mux_ctrl_ofs = _mux_ctrl_ofs, \ - .mux_mode = _mux_mode, \ - .pad_ctrl_ofs = _pad_ctrl_ofs, \ - .pad_ctrl = _pad_ctrl, \ - .select_input_ofs = _select_input_ofs, \ - .select_input = _select_input, \ - } +#define MUX_MODE_SHIFT 36 +#define MUX_MODE_MASK ((iomux_v3_cfg_t)0x1f << MUX_MODE_SHIFT) +#define MUX_PAD_CTRL_SHIFT 41 +#define MUX_PAD_CTRL_MASK ((iomux_v3_cfg_t)0x1ffff << MUX_PAD_CTRL_SHIFT) +#define MUX_SEL_INPUT_SHIFT 58 +#define MUX_SEL_INPUT_MASK ((iomux_v3_cfg_t)0xf << MUX_SEL_INPUT_SHIFT) +#define MUX_PAD_CTRL(x) ((iomux_v3_cfg_t)(x) << MUX_PAD_CTRL_SHIFT) + +#define IOMUX_PAD(_pad_ctrl_ofs, _mux_ctrl_ofs, _mux_mode, _sel_input_ofs, \ + _sel_input, _pad_ctrl) \ + (((iomux_v3_cfg_t)(_mux_ctrl_ofs) << MUX_CTRL_OFS_SHIFT) | \ + ((iomux_v3_cfg_t)(_mux_mode) << MUX_MODE_SHIFT) | \ + ((iomux_v3_cfg_t)(_pad_ctrl_ofs) << MUX_PAD_CTRL_OFS_SHIFT) | \ + ((iomux_v3_cfg_t)(_pad_ctrl) << MUX_PAD_CTRL_SHIFT) | \ + ((iomux_v3_cfg_t)(_sel_input_ofs) << MUX_SEL_INPUT_OFS_SHIFT) | \ + ((iomux_v3_cfg_t)(_sel_input) << MUX_SEL_INPUT_SHIFT)) + +#define NEW_PAD_CTRL(cfg, pad) (((cfg) & ~MUX_PAD_CTRL_MASK) | MUX_PAD_CTRL(pad)) /* * Use to set PAD control */ + +#define NO_PAD_CTRL (1 << 16) #define PAD_CTL_DVS (1 << 13) #define PAD_CTL_HYS (1 << 8) #define PAD_CTL_PKE (1 << 7) -#define PAD_CTL_PUE (1 << 6) -#define PAD_CTL_PUS_100K_DOWN (0 << 4) -#define PAD_CTL_PUS_47K_UP (1 << 4) -#define PAD_CTL_PUS_100K_UP (2 << 4) -#define PAD_CTL_PUS_22K_UP (3 << 4) +#define PAD_CTL_PUE (1 << 6 | PAD_CTL_PKE) +#define PAD_CTL_PUS_100K_DOWN (0 << 4 | PAD_CTL_PUE) +#define PAD_CTL_PUS_47K_UP (1 << 4 | PAD_CTL_PUE) +#define PAD_CTL_PUS_100K_UP (2 << 4 | PAD_CTL_PUE) +#define PAD_CTL_PUS_22K_UP (3 << 4 | PAD_CTL_PUE) #define PAD_CTL_ODE (1 << 3) @@ -91,16 +109,14 @@ struct pad_desc { #define IOMUX_CONFIG_SION (0x1 << 4) /* - * setups a single pad: - * - reserves the pad so that it is not claimed by another driver - * - setups the iomux according to the configuration + * setups a single pad in the iomuxer */ -int mxc_iomux_v3_setup_pad(struct pad_desc *pad); +int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad); /* * setups mutliple pads * convenient way to call the above function with tables */ -int mxc_iomux_v3_setup_multiple_pads(struct pad_desc *pad_list, unsigned count); +int mxc_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t *pad_list, unsigned count); #endif /* __MACH_IOMUX_V3_H__*/ |