1*4882a593Smuzhiyun // SPDX-License-Identifier: ISC
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (c) 2014 Broadcom Corporation
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun #include <linux/init.h>
6*4882a593Smuzhiyun #include <linux/of.h>
7*4882a593Smuzhiyun #include <linux/of_irq.h>
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <defs.h>
10*4882a593Smuzhiyun #include "debug.h"
11*4882a593Smuzhiyun #include "core.h"
12*4882a593Smuzhiyun #include "common.h"
13*4882a593Smuzhiyun #include "of.h"
14*4882a593Smuzhiyun
brcmf_of_probe(struct device * dev,enum brcmf_bus_type bus_type,struct brcmf_mp_device * settings)15*4882a593Smuzhiyun void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
16*4882a593Smuzhiyun struct brcmf_mp_device *settings)
17*4882a593Smuzhiyun {
18*4882a593Smuzhiyun struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio;
19*4882a593Smuzhiyun struct device_node *root, *np = dev->of_node;
20*4882a593Smuzhiyun int irq;
21*4882a593Smuzhiyun u32 irqf;
22*4882a593Smuzhiyun u32 val;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun /* Set board-type to the first string of the machine compatible prop */
25*4882a593Smuzhiyun root = of_find_node_by_path("/");
26*4882a593Smuzhiyun if (root) {
27*4882a593Smuzhiyun int i, len;
28*4882a593Smuzhiyun char *board_type;
29*4882a593Smuzhiyun const char *tmp;
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun of_property_read_string_index(root, "compatible", 0, &tmp);
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun /* get rid of '/' in the compatible string to be able to find the FW */
34*4882a593Smuzhiyun len = strlen(tmp) + 1;
35*4882a593Smuzhiyun board_type = devm_kzalloc(dev, len, GFP_KERNEL);
36*4882a593Smuzhiyun strscpy(board_type, tmp, len);
37*4882a593Smuzhiyun for (i = 0; i < board_type[i]; i++) {
38*4882a593Smuzhiyun if (board_type[i] == '/')
39*4882a593Smuzhiyun board_type[i] = '-';
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun settings->board_type = board_type;
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun of_node_put(root);
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun if (!np || bus_type != BRCMF_BUSTYPE_SDIO ||
47*4882a593Smuzhiyun !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
48*4882a593Smuzhiyun return;
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
51*4882a593Smuzhiyun sdio->drive_strength = val;
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun /* make sure there are interrupts defined in the node */
54*4882a593Smuzhiyun if (!of_find_property(np, "interrupts", NULL))
55*4882a593Smuzhiyun return;
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun irq = irq_of_parse_and_map(np, 0);
58*4882a593Smuzhiyun if (!irq) {
59*4882a593Smuzhiyun brcmf_err("interrupt could not be mapped\n");
60*4882a593Smuzhiyun return;
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun irqf = irqd_get_trigger_type(irq_get_irq_data(irq));
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun sdio->oob_irq_supported = true;
65*4882a593Smuzhiyun sdio->oob_irq_nr = irq;
66*4882a593Smuzhiyun sdio->oob_irq_flags = irqf;
67*4882a593Smuzhiyun }
68