diff options
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/device.h | 39 | ||||
| -rw-r--r-- | include/dm/platdata.h | 5 | ||||
| -rw-r--r-- | include/dm/uclass-id.h | 5 | ||||
| -rw-r--r-- | include/dm/uclass.h | 18 |
4 files changed, 63 insertions, 4 deletions
diff --git a/include/dm/device.h b/include/dm/device.h index f03bcd3..babf8ac 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -42,7 +42,9 @@ struct driver_info; #define DM_FLAG_BOUND (1 << 6) /* Device name is allocated and should be freed on unbind() */ -#define DM_NAME_ALLOCED (1 << 7) +#define DM_FLAG_NAME_ALLOCED (1 << 7) + +#define DM_FLAG_OF_PLATDATA (1 << 8) /** * struct udevice - An instance of a driver @@ -205,6 +207,10 @@ struct driver { #define U_BOOT_DRIVER(__name) \ ll_entry_declare(struct driver, __name, driver) +/* Get a pointer to a given driver */ +#define DM_GET_DRIVER(__name) \ + ll_entry_get(struct driver, __name, driver) + /** * dev_get_platdata() - Get the platform data for a device * @@ -467,6 +473,19 @@ fdt_addr_t dev_get_addr(struct udevice *dev); void *dev_get_addr_ptr(struct udevice *dev); /** + * dev_map_physmem() - Read device address from reg property of the + * device node and map the address into CPU address + * space. + * + * @dev: Pointer to device + * @size: size of the memory to map + * + * @return mapped address, or NULL if the device does not have reg + * property. + */ +void *dev_map_physmem(struct udevice *dev, unsigned long size); + +/** * dev_get_addr_index() - Get the indexed reg property of a device * * @dev: Pointer to a device @@ -540,7 +559,7 @@ int device_set_name(struct udevice *dev, const char *name); /** * device_set_name_alloced() - note that a device name is allocated * - * This sets the DM_NAME_ALLOCED flag for the device, so that when it is + * This sets the DM_FLAG_NAME_ALLOCED flag for the device, so that when it is * unbound the name will be freed. This avoids memory leaks. * * @dev: Device to update @@ -593,6 +612,22 @@ static inline bool device_is_on_pci_bus(struct udevice *dev) #define device_foreach_child_safe(pos, next, parent) \ list_for_each_entry_safe(pos, next, &parent->child_head, sibling_node) +/** + * dm_scan_fdt_dev() - Bind child device in a the device tree + * + * This handles device which have sub-nodes in the device tree. It scans all + * sub-nodes and binds drivers for each node where a driver can be found. + * + * If this is called prior to relocation, only pre-relocation devices will be + * bound (those marked with u-boot,dm-pre-reloc in the device tree, or where + * the driver has the DM_FLAG_PRE_RELOC flag set). Otherwise, all devices will + * be bound. + * + * @dev: Device to scan + * @return 0 if OK, -ve on error + */ +int dm_scan_fdt_dev(struct udevice *dev); + /* device resource management */ typedef void (*dr_release_t)(struct udevice *dev, void *res); typedef int (*dr_match_t)(struct udevice *dev, void *res, void *match_data); diff --git a/include/dm/platdata.h b/include/dm/platdata.h index 6f4f001..488b2ab 100644 --- a/include/dm/platdata.h +++ b/include/dm/platdata.h @@ -22,10 +22,15 @@ * * @name: Driver name * @platdata: Driver-specific platform data + * @platdata_size: Size of platform data structure + * @flags: Platform data flags (DM_FLAG_...) */ struct driver_info { const char *name; const void *platdata; +#if CONFIG_IS_ENABLED(OF_PLATDATA) + uint platdata_size; +#endif }; /** diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index b768660..eb78c4d 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -33,7 +33,6 @@ enum uclass_id { UCLASS_CROS_EC, /* Chrome OS EC */ UCLASS_DISPLAY, /* Display (e.g. DisplayPort, HDMI) */ UCLASS_DMA, /* Direct Memory Access */ - UCLASS_RAM, /* RAM controller */ UCLASS_ETH, /* Ethernet device */ UCLASS_GPIO, /* Bank of general-purpose I/O pins */ UCLASS_I2C, /* I2C bus */ @@ -56,11 +55,13 @@ enum uclass_id { UCLASS_PCH, /* x86 platform controller hub */ UCLASS_PCI, /* PCI bus */ UCLASS_PCI_GENERIC, /* Generic PCI bus device */ - UCLASS_PINCTRL, /* Pinctrl (pin muxing/configuration) device */ UCLASS_PINCONFIG, /* Pin configuration node device */ + UCLASS_PINCTRL, /* Pinctrl (pin muxing/configuration) device */ UCLASS_PMIC, /* PMIC I/O device */ UCLASS_PWM, /* Pulse-width modulator */ + UCLASS_POWER_DOMAIN, /* (SoC) Power domains */ UCLASS_PWRSEQ, /* Power sequence device */ + UCLASS_RAM, /* RAM controller */ UCLASS_REGULATOR, /* Regulator device */ UCLASS_REMOTEPROC, /* Remote Processor device */ UCLASS_RESET, /* Reset controller device */ diff --git a/include/dm/uclass.h b/include/dm/uclass.h index fd368b6..84f05bc 100644 --- a/include/dm/uclass.h +++ b/include/dm/uclass.h @@ -38,6 +38,7 @@ struct uclass { struct list_head sibling_node; }; +struct driver; struct udevice; /* Members of this uclass sequence themselves with aliases */ @@ -194,6 +195,23 @@ int uclass_get_device_by_phandle(enum uclass_id id, struct udevice *parent, const char *name, struct udevice **devp); /** + * uclass_get_device_by_driver() - Get a uclass device for a driver + * + * This searches the devices in the uclass for one that uses the given + * driver. Use DM_GET_DRIVER(name) for the @drv argument, where 'name' is + * the driver name - as used in U_BOOT_DRIVER(name). + * + * The device is probed to activate it ready for use. + * + * @id: ID to look up + * @drv: Driver to look for + * @devp: Returns pointer to the first device with that driver + * @return 0 if OK, -ve on error + */ +int uclass_get_device_by_driver(enum uclass_id id, const struct driver *drv, + struct udevice **devp); + +/** * uclass_first_device() - Get the first device in a uclass * * The device returned is probed if necessary, and ready for use |