From: Stephen Warren Date: Wed, 6 Apr 2016 18:49:19 +0000 (-0600) Subject: fdt: implement dev_get_addr_name() X-Git-Tag: v2016.05-rc2~55 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=43c4d44e3330;p=oweals%2Fu-boot.git fdt: implement dev_get_addr_name() This function parses the reg property based on an index found in the reg-names property. This is required for bindings that are written using reg-names rather than hard-coding indices in reg. Signed-off-by: Stephen Warren Acked-by: Simon Glass --- diff --git a/drivers/core/device.c b/drivers/core/device.c index 9d0c1009e9..269087a084 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -652,6 +652,22 @@ fdt_addr_t dev_get_addr_index(struct udevice *dev, int index) #endif } +fdt_addr_t dev_get_addr_name(struct udevice *dev, const char *name) +{ +#if CONFIG_IS_ENABLED(OF_CONTROL) + int index; + + index = fdt_find_string(gd->fdt_blob, dev->parent->of_offset, + "reg-names", name); + if (index < 0) + return index; + + return dev_get_addr_index(dev, index); +#else + return FDT_ADDR_T_NONE; +#endif +} + fdt_addr_t dev_get_addr(struct udevice *dev) { return dev_get_addr_index(dev, 0); diff --git a/include/dm/device.h b/include/dm/device.h index 1cf81501ed..dad7591dfa 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -464,6 +464,18 @@ fdt_addr_t dev_get_addr(struct udevice *dev); */ fdt_addr_t dev_get_addr_index(struct udevice *dev, int index); +/** + * dev_get_addr_name() - Get the reg property of a device, indexed by name + * + * @dev: Pointer to a device + * @name: the 'reg' property can hold a list of pairs, with the + * 'reg-names' property providing named-based identification. @index + * indicates the value to search for in 'reg-names'. + * + * @return addr + */ +fdt_addr_t dev_get_addr_name(struct udevice *dev, const char *name); + /** * device_has_children() - check if a device has any children *