1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (c) 2014 Broadcom Corporation 4 */ 5 #include <linux/init.h> 6 #include <linux/of.h> 7 #include <linux/of_irq.h> 8 9 #include <defs.h> 10 #include "debug.h" 11 #include "core.h" 12 #include "common.h" 13 #include "of.h" 14 15 void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type, 16 struct brcmf_mp_device *settings) 17 { 18 struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio; 19 struct device_node *root, *np = dev->of_node; 20 struct property *prop; 21 int irq; 22 u32 irqf; 23 u32 val; 24 25 /* Set board-type to the first string of the machine compatible prop */ 26 root = of_find_node_by_path("/"); 27 if (root) { 28 prop = of_find_property(root, "compatible", NULL); 29 settings->board_type = of_prop_next_string(prop, NULL); 30 of_node_put(root); 31 } 32 33 if (!np || bus_type != BRCMF_BUSTYPE_SDIO || 34 !of_device_is_compatible(np, "brcm,bcm4329-fmac")) 35 return; 36 37 if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0) 38 sdio->drive_strength = val; 39 40 /* make sure there are interrupts defined in the node */ 41 if (!of_find_property(np, "interrupts", NULL)) 42 return; 43 44 irq = irq_of_parse_and_map(np, 0); 45 if (!irq) { 46 brcmf_err("interrupt could not be mapped\n"); 47 return; 48 } 49 irqf = irqd_get_trigger_type(irq_get_irq_data(irq)); 50 51 sdio->oob_irq_supported = true; 52 sdio->oob_irq_nr = irq; 53 sdio->oob_irq_flags = irqf; 54 } 55