This patch series adds support for the Broadcom Settopbox PCIe host controller. It is targeted to Broadcom Settopbox chips running on ARM, ARM64, and MIPS platforms. Changes from V1: * Patch brcmstb-add-memory-API: - fix DT_PROP_DATA_TO_U32 macro. - dropped one EXPORT_SYMBOL, changed the other to GPL. * Patch DT-docs-for-Brcmstb-PCIe: - change 'brcm,gen' prop to standard 'max-link-speed'. - rewrite bindings commit to omit standard prop defs. - change props "supplies", "supply-names" to "xyz-supply" * Patch removed: export-symbol-arch_setup_dma_ops [4/9] * Patch brcmstb-add-dma-ranges: - use get_dma_ops(); also use a const dma_map_ops structure. - rewrite map_sg(), unmap_sg(), other calls like syng_sg_*() - omit brcm_mapping_error(), but added code in brcm_dma_supported() - put all of the notifier code in one compilation unit.