Author: jhibbits Date: Fri Sep 30 02:48:40 2016 New Revision: 306473 URL: https://svnweb.freebsd.org/changeset/base/306473
Log: Use the cell-index property as the unit number if available. Summary: NXP/Freescale, among others, includes an optional cell-index property on nodes to denote the SoC block number of the node. This can be useful if, for example, a node is disabled or nonexistent in the fdt, or the blocks are not organized in address-sorted order. For instance, on the P1022, DMA2 is located at CCSR offset 0xC000, while DMA1 is located at 0x21000. Reviewed By: jmcneill Differential Revision: https://reviews.freebsd.org/D8054 Modified: head/sys/dev/fdt/simplebus.c Modified: head/sys/dev/fdt/simplebus.c ============================================================================== --- head/sys/dev/fdt/simplebus.c Fri Sep 30 01:42:29 2016 (r306472) +++ head/sys/dev/fdt/simplebus.c Fri Sep 30 02:48:40 2016 (r306473) @@ -265,6 +265,15 @@ simplebus_add_device(device_t dev, phand if ((ndi = simplebus_setup_dinfo(dev, node, di)) == NULL) return (NULL); + + /* + * If the order is unspecified, use the cell-index field, if available. + * The cell-index property is not part of any standard, but is widely + * used in NXP/Freescale and Marvell device trees. + */ + if (order == -1) + OF_getencprop(node, "cell-index", &order, sizeof(order)); + cdev = device_add_child_ordered(dev, order, name, unit); if (cdev == NULL) { device_printf(dev, "<%s>: device_add_child failed\n", _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
