diff options
| author | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-09-11 22:04:12 +0200 |
|---|---|---|
| committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-09-18 20:40:33 +0200 |
| commit | c131c8bca86b428daef7a25c26a96af42658be21 (patch) | |
| tree | 6c1c54186ec70dfb19f6d41c925fdc78bc65f4cc | |
| parent | af823151641b1a9a8eae8c3b111f5fa27e6873ac (diff) | |
dm: core: add dev_read_addr_ptr()
The dev_read_addr_ptr() mimics the behaviour of the devfdt_get_addr_ptr(),
retrieving the first address of the node's reg-property and returning
it as a pointer (or NULL on failure).
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | drivers/core/read.c | 7 | ||||
| -rw-r--r-- | include/dm/read.h | 15 |
2 files changed, 22 insertions, 0 deletions
diff --git a/drivers/core/read.c b/drivers/core/read.c index 6acb33388f..065589a6ab 100644 --- a/drivers/core/read.c +++ b/drivers/core/read.c @@ -57,6 +57,13 @@ fdt_addr_t dev_read_addr(struct udevice *dev) return dev_read_addr_index(dev, 0); } +void *dev_read_addr_ptr(struct udevice *dev) +{ + fdt_addr_t addr = dev_read_addr(dev); + + return (addr == FDT_ADDR_T_NONE) ? NULL : (void *)addr; +} + fdt_addr_t dev_read_addr_size(struct udevice *dev, const char *property, fdt_size_t *sizep) { diff --git a/include/dm/read.h b/include/dm/read.h index 49d69c990f..e7f71256a8 100644 --- a/include/dm/read.h +++ b/include/dm/read.h @@ -113,6 +113,16 @@ fdt_addr_t dev_read_addr_index(struct udevice *dev, int index); fdt_addr_t dev_read_addr(struct udevice *dev); /** + * dev_read_addr_ptr() - Get the reg property of a device + * as a pointer + * + * @dev: Device to read from + * + * @return pointer or NULL if not found + */ +void *dev_read_addr_ptr(struct udevice *dev); + +/** * dev_read_addr_size() - get address and size from a device property * * This does no address translation. It simply reads an property that contains @@ -417,6 +427,11 @@ static inline fdt_addr_t dev_read_addr(struct udevice *dev) return devfdt_get_addr(dev); } +static inline void *dev_read_addr_ptr(struct udevice *dev) +{ + return devfdt_get_addr_ptr(dev); +} + static inline fdt_addr_t dev_read_addr_size(struct udevice *dev, const char *propname, fdt_size_t *sizep) |