diff options
author | Sekhar Nori <nsekhar@ti.com> | 2019-08-01 19:12:56 +0530 |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2019-08-12 13:33:39 -0400 |
commit | f5b904796fa876bbfdf6eb9d2b311f9d01d80f5a (patch) | |
tree | 696d7835d6784adde746d196fcd455ca59a59401 /include/dm/read.h | |
parent | acbb7cd4d34caec36ff6d044a8f55325fa27459f (diff) |
dm: core: add support for getting register address and size
Current dev_read_*() API lacks support to get address and size
of a "reg" property by name or index. Add support for the same.
Livetree support has been added but not tested on real hardware.
The existing unit tests testing reading address from device-tree
have been updated to test address as well as size.
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Diffstat (limited to 'include/dm/read.h')
-rw-r--r-- | include/dm/read.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/dm/read.h b/include/dm/read.h index 6ecd062e20..0c62d62f11 100644 --- a/include/dm/read.h +++ b/include/dm/read.h @@ -145,6 +145,19 @@ int dev_read_size(struct udevice *dev, const char *propname); fdt_addr_t dev_read_addr_index(struct udevice *dev, int index); /** + * dev_read_addr_size_index() - Get the indexed reg property of a device + * + * @dev: Device to read from + * @index: the 'reg' property can hold a list of <addr, size> pairs + * and @index is used to select which one is required + * @size: place to put size value (on success) + * + * @return address or FDT_ADDR_T_NONE if not found + */ +fdt_addr_t dev_read_addr_size_index(struct udevice *dev, int index, + fdt_size_t *size); + +/** * dev_remap_addr_index() - Get the indexed reg property of a device * as a memory-mapped I/O pointer * @@ -169,6 +182,20 @@ void *dev_remap_addr_index(struct udevice *dev, int index); fdt_addr_t dev_read_addr_name(struct udevice *dev, const char* name); /** + * dev_read_addr_size_name() - Get the reg property of a device, indexed by name + * + * @dev: Device to read from + * @name: the 'reg' property can hold a list of <addr, size> pairs, with the + * 'reg-names' property providing named-based identification. @index + * indicates the value to search for in 'reg-names'. + * @size: place to put size value (on success) + * + * @return address or FDT_ADDR_T_NONE if not found + */ +fdt_addr_t dev_read_addr_size_name(struct udevice *dev, const char *name, + fdt_size_t *size); + +/** * dev_remap_addr_name() - Get the reg property of a device, indexed by name, * as a memory-mapped I/O pointer * @@ -601,12 +628,26 @@ static inline fdt_addr_t dev_read_addr_index(struct udevice *dev, int index) return devfdt_get_addr_index(dev, index); } +static inline fdt_addr_t dev_read_addr_size_index(struct udevice *dev, + int index, + fdt_size_t *size) +{ + return devfdt_get_addr_size_index(dev, index, size); +} + static inline fdt_addr_t dev_read_addr_name(struct udevice *dev, const char *name) { return devfdt_get_addr_name(dev, name); } +static inline fdt_addr_t dev_read_addr_size_name(struct udevice *dev, + const char *name, + fdt_size_t *size) +{ + return devfdt_get_addr_size_name(dev, name, size); +} + static inline fdt_addr_t dev_read_addr(struct udevice *dev) { return devfdt_get_addr(dev); |