dm: core: Add a new api to get indexed device address
Add new api to get device address based on index. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Acked-by: Jagan Teki <jteki@openedev.com> [Rebased on master] Signed-off-by: Jagan Teki <jteki@openedev.com>
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@ -581,17 +581,35 @@ const char *dev_get_uclass_name(struct udevice *dev)
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return dev->uclass->uc_drv->name;
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}
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fdt_addr_t dev_get_addr(struct udevice *dev)
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fdt_addr_t dev_get_addr_index(struct udevice *dev, int index)
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{
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#if CONFIG_IS_ENABLED(OF_CONTROL)
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fdt_addr_t addr;
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if (CONFIG_IS_ENABLED(OF_TRANSLATE)) {
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const fdt32_t *reg;
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int len = 0;
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int na, ns;
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reg = fdt_getprop(gd->fdt_blob, dev->of_offset, "reg", NULL);
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if (!reg)
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na = fdt_address_cells(gd->fdt_blob, dev->parent->of_offset);
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if (na < 1) {
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debug("bad #address-cells\n");
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return FDT_ADDR_T_NONE;
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}
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ns = fdt_size_cells(gd->fdt_blob, dev->parent->of_offset);
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if (ns < 0) {
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debug("bad #size-cells\n");
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return FDT_ADDR_T_NONE;
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}
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reg = fdt_getprop(gd->fdt_blob, dev->of_offset, "reg", &len);
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if (!reg || (len <= (index * sizeof(fdt32_t) * (na + ns)))) {
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debug("Req index out of range\n");
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return FDT_ADDR_T_NONE;
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}
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reg += index * (na + ns);
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/*
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* Use the full-fledged translate function for complex
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@ -607,7 +625,7 @@ fdt_addr_t dev_get_addr(struct udevice *dev)
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addr = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
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dev->parent->of_offset,
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dev->of_offset, "reg",
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0, NULL);
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index, NULL);
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if (CONFIG_IS_ENABLED(SIMPLE_BUS) && addr != FDT_ADDR_T_NONE) {
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if (device_get_uclass_id(dev->parent) ==
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UCLASS_SIMPLE_BUS)
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@ -629,6 +647,11 @@ fdt_addr_t dev_get_addr(struct udevice *dev)
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#endif
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}
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fdt_addr_t dev_get_addr(struct udevice *dev)
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{
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return dev_get_addr_index(dev, 0);
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}
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bool device_has_children(struct udevice *dev)
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{
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return !list_empty(&dev->child_head);
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@ -453,6 +453,17 @@ int device_find_next_child(struct udevice **devp);
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*/
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fdt_addr_t dev_get_addr(struct udevice *dev);
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/**
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* dev_get_addr_index() - Get the indexed reg property of a device
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*
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* @dev: Pointer to a device
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* @index: the 'reg' property can hold a list of <addr, size> pairs
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* and @index is used to select which one is required
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*
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* @return addr
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*/
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fdt_addr_t dev_get_addr_index(struct udevice *dev, int index);
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/**
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* device_has_children() - check if a device has any children
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*
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