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core: introduce dev_read_addr_name[_size]_ptr() functions

Browse source 
Same as dev_read_addr_name[_size](), but returns a pointer, cast
through map_sysmem().

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Matthias Schiffer 2023-09-27 15:33:32 +02:00 • committed by Simon Glass
parent e367305769
commit bc8fa1cbfd
4 changed files with 114 additions and 0 deletions
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21
drivers/core/fdtaddr.c
View file

@ -153,6 +153,16 @@ fdt_addr_t devfdt_get_addr_name(const struct udevice *dev, const char *name)
#endif
}
void *devfdt_get_addr_name_ptr(const struct udevice *dev, const char *name)
{
fdt_addr_t addr = devfdt_get_addr_name(dev, name);
if (addr == FDT_ADDR_T_NONE)
return NULL;
return map_sysmem(addr, 0);
}
fdt_addr_t devfdt_get_addr_size_name(const struct udevice *dev,
const char *name, fdt_size_t *size)
{
@ -170,6 +180,17 @@ fdt_addr_t devfdt_get_addr_size_name(const struct udevice *dev,
#endif
}
void *devfdt_get_addr_size_name_ptr(const struct udevice *dev,
const char *name, fdt_size_t *size)
{
fdt_addr_t addr = devfdt_get_addr_size_name(dev, name, size);
if (addr == FDT_ADDR_T_NONE)
return NULL;
return map_sysmem(addr, 0);
}
fdt_addr_t devfdt_get_addr(const struct udevice *dev)
{
return devfdt_get_addr_index(dev, 0);

21
drivers/core/read.c
View file

@ -181,6 +181,16 @@ fdt_addr_t dev_read_addr_name(const struct udevice *dev, const char *name)
return dev_read_addr_index(dev, index);
}
void *dev_read_addr_name_ptr(const struct udevice *dev, const char *name)
{
fdt_addr_t addr = dev_read_addr_name(dev, name);
if (addr == FDT_ADDR_T_NONE)
return NULL;
return map_sysmem(addr, 0);
}
fdt_addr_t dev_read_addr_size_name(const struct udevice *dev, const char *name,
fdt_size_t *size)
{
@ -192,6 +202,17 @@ fdt_addr_t dev_read_addr_size_name(const struct udevice *dev, const char *name,
return dev_read_addr_size_index(dev, index, size);
}
void *dev_read_addr_size_name_ptr(const struct udevice *dev, const char *name,
fdt_size_t *size)
{
fdt_addr_t addr = dev_read_addr_size_name(dev, name, size);
if (addr == FDT_ADDR_T_NONE)
return NULL;
return map_sysmem(addr, 0);
}
void *dev_remap_addr_name(const struct udevice *dev, const char *name)
{
fdt_addr_t addr = dev_read_addr_name(dev, name);

31
include/dm/fdtaddr.h
View file

@ -146,6 +146,19 @@ void *devfdt_get_addr_size_index_ptr(const struct udevice *dev, int index,
*/
fdt_addr_t devfdt_get_addr_name(const struct udevice *dev, const char *name);
/**
* devfdt_get_addr_name_ptr() - Get the reg property of a device as a pointer,
* indexed by name
*
* @dev: Pointer to a device
* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
* 'reg-names' property providing named-based identification. @name
* indicates the value to search for in 'reg-names'.
*
* Return: Pointer to addr, or NULL if there is no such property
*/
void *devfdt_get_addr_name_ptr(const struct udevice *dev, const char *name);
/**
* devfdt_get_addr_size_name() - Get the reg property and its size for a device,
* indexed by name
@ -164,6 +177,24 @@ fdt_addr_t devfdt_get_addr_name(const struct udevice *dev, const char *name);
fdt_addr_t devfdt_get_addr_size_name(const struct udevice *dev,
const char *name, fdt_size_t *size);
/**
* devfdt_get_addr_size_name_ptr() - Get the reg property for a device as a
* pointer, indexed by name
*
* Returns the address and size specified in the 'reg' property of a device.
*
* @dev: Pointer to a device
* @name: the 'reg' property can hold a list of <addr, size> pairs, with the
* 'reg-names' property providing named-based identification. @name
* indicates the value to search for in 'reg-names'.
* @size: Pointer to size variable - this function returns the size
* specified in the 'reg' property here
*
* Return: Pointer to addr, or NULL if there is no such property
*/
void *devfdt_get_addr_size_name_ptr(const struct udevice *dev,
const char *name, fdt_size_t *size);
/**
* devfdt_get_addr_pci() - Read an address and handle PCI address translation
*

41
include/dm/read.h
View file

@ -284,6 +284,19 @@ void *dev_remap_addr_index(const struct udevice *dev, int index);
*/
fdt_addr_t dev_read_addr_name(const struct udevice *dev, const char *name);
/**
* dev_read_addr_name_ptr() - Get the reg property of a device as a pointer,
* 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. @name
* indicates the value to search for in 'reg-names'.
*
* Return: pointer or NULL if not found
*/
void *dev_read_addr_name_ptr(const struct udevice *dev, const char *name);
/**
* dev_read_addr_size_name() - Get the reg property of a device, indexed by name
*
@ -298,6 +311,21 @@ fdt_addr_t dev_read_addr_name(const struct udevice *dev, const char *name);
fdt_addr_t dev_read_addr_size_name(const struct udevice *dev, const char *name,
fdt_size_t *size);
/**
* dev_read_addr_size_name_ptr() - Get the reg property of a device as a pointer,
* 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. @name
* indicates the value to search for in 'reg-names'.
* @size: place to put size value (on success)
*
* Return: pointer or NULL if not found
*/
void *dev_read_addr_size_name_ptr(const 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
@ -980,6 +1008,12 @@ static inline fdt_addr_t dev_read_addr_name(const struct udevice *dev,
return devfdt_get_addr_name(dev, name);
}
static inline void *dev_read_addr_name_ptr(const struct udevice *dev,
const char *name)
{
return devfdt_get_addr_name_ptr(dev, name);
}
static inline fdt_addr_t dev_read_addr_size_name(const struct udevice *dev,
const char *name,
fdt_size_t *size)
@ -987,6 +1021,13 @@ static inline fdt_addr_t dev_read_addr_size_name(const struct udevice *dev,
return devfdt_get_addr_size_name(dev, name, size);
}
static inline void *dev_read_addr_size_name_ptr(const struct udevice *dev,
const char *name,
fdt_size_t *size)
{
return devfdt_get_addr_size_name_ptr(dev, name, size);
}
static inline fdt_addr_t dev_read_addr(const struct udevice *dev)
{
return devfdt_get_addr(dev);