diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/dm/uclass-id.h | 1 | ||||
| -rw-r--r-- | include/syscon.h | 56 |
2 files changed, 57 insertions, 0 deletions
diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index c7310d7ca0..24baa5cd64 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -46,6 +46,7 @@ enum uclass_id { UCLASS_SPI, /* SPI bus */ UCLASS_SPI_FLASH, /* SPI flash */ UCLASS_SPI_GENERIC, /* Generic SPI flash target */ + UCLASS_SYSCON, /* System configuration device */ UCLASS_THERMAL, /* Thermal sensor */ UCLASS_USB, /* USB bus */ UCLASS_USB_DEV_GENERIC, /* USB generic device */ diff --git a/include/syscon.h b/include/syscon.h new file mode 100644 index 0000000000..c62ccd61b3 --- /dev/null +++ b/include/syscon.h @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2015 Google, Inc + * Written by Simon Glass <sjg@chromium.org> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __SYSCON_H +#define __SYSCON_H + +/** + * struct syscon_uc_info - Information stored by the syscon UCLASS_UCLASS + * + * @regmap: Register map for this controller + */ +struct syscon_uc_info { + struct regmap *regmap; +}; + +/* So far there are no ops so this is a placeholder */ +struct syscon_ops { +}; + +#define syscon_get_ops(dev) ((struct syscon_ops *)(dev)->driver->ops) + +/** + * syscon_get_regmap() - Get access to a register map + * + * @dev: Device to check (UCLASS_SCON) + * @info: Returns regmap for the device + * @return 0 if OK, -ve on error + */ +struct regmap *syscon_get_regmap(struct udevice *dev); + +/** + * syscon_get_regmap_by_driver_data() - Look up a controller by its ID + * + * Each system controller can be accessed by its driver data, which is + * assumed to be unique through the scope of all system controllers that + * are in use. This function looks up the regmap given this driver data. + * + * @driver_data: Driver data value to look up + * @return register map correponding to @driver_data, or -ve error code + */ +struct regmap *syscon_get_regmap_by_driver_data(ulong driver_data); + +/** + * syscon_get_first_range() - get the first memory range from a syscon regmap + * + * @driver_data: Driver data value to look up + * @return first region of register map correponding to @driver_data, or + * -ve error code + */ +void *syscon_get_first_range(ulong driver_data); + +#endif |
