139 lines
3.3 KiB
C
139 lines
3.3 KiB
C
// SPDX-License-Identifier: ISC
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/*
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* Copyright (c) 2014 Broadcom Corporation
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*/
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#include <linux/init.h>
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#include <linux/of.h>
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#include <linux/of_irq.h>
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#include <linux/of_net.h>
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#include <defs.h>
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#include "debug.h"
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#include "core.h"
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#include "common.h"
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#include "of.h"
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static int brcmf_of_get_country_codes(struct device *dev,
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struct brcmf_mp_device *settings)
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{
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struct device_node *np = dev->of_node;
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struct brcmfmac_pd_cc_entry *cce;
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struct brcmfmac_pd_cc *cc;
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int count;
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int i;
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count = of_property_count_strings(np, "brcm,ccode-map");
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if (count < 0) {
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/* If no explicit country code map is specified, check whether
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* the trivial map should be used.
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*/
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settings->trivial_ccode_map =
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of_property_read_bool(np, "brcm,ccode-map-trivial");
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/* The property is optional, so return success if it doesn't
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* exist. Otherwise propagate the error code.
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*/
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return (count == -EINVAL) ? 0 : count;
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}
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cc = devm_kzalloc(dev, struct_size(cc, table, count), GFP_KERNEL);
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if (!cc)
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return -ENOMEM;
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cc->table_size = count;
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for (i = 0; i < count; i++) {
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const char *map;
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cce = &cc->table[i];
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if (of_property_read_string_index(np, "brcm,ccode-map",
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i, &map))
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continue;
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/* String format e.g. US-Q2-86 */
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if (sscanf(map, "%2c-%2c-%d", cce->iso3166, cce->cc,
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&cce->rev) != 3)
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brcmf_err("failed to read country map %s\n", map);
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else
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brcmf_dbg(INFO, "%s-%s-%d\n", cce->iso3166, cce->cc,
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cce->rev);
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}
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settings->country_codes = cc;
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return 0;
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}
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void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
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struct brcmf_mp_device *settings)
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{
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struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio;
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struct device_node *root, *np = dev->of_node;
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const char *prop;
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int irq;
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int err;
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u32 irqf;
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u32 val;
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/* Apple ARM64 platforms have their own idea of board type, passed in
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* via the device tree. They also have an antenna SKU parameter
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*/
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err = of_property_read_string(np, "brcm,board-type", &prop);
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if (!err)
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settings->board_type = prop;
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if (!of_property_read_string(np, "apple,antenna-sku", &prop))
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settings->antenna_sku = prop;
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/* Set board-type to the first string of the machine compatible prop */
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root = of_find_node_by_path("/");
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if (root && err) {
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char *board_type;
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const char *tmp;
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of_property_read_string_index(root, "compatible", 0, &tmp);
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/* get rid of '/' in the compatible string to be able to find the FW */
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board_type = devm_kstrdup(dev, tmp, GFP_KERNEL);
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if (!board_type) {
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of_node_put(root);
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return;
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}
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strreplace(board_type, '/', '-');
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settings->board_type = board_type;
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of_node_put(root);
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}
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if (!np || !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
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return;
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err = brcmf_of_get_country_codes(dev, settings);
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if (err)
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brcmf_err("failed to get OF country code map (err=%d)\n", err);
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of_get_mac_address(np, settings->mac);
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if (bus_type != BRCMF_BUSTYPE_SDIO)
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return;
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if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
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sdio->drive_strength = val;
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/* make sure there are interrupts defined in the node */
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if (!of_find_property(np, "interrupts", NULL))
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return;
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irq = irq_of_parse_and_map(np, 0);
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if (!irq) {
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brcmf_err("interrupt could not be mapped\n");
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return;
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}
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irqf = irqd_get_trigger_type(irq_get_irq_data(irq));
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sdio->oob_irq_supported = true;
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sdio->oob_irq_nr = irq;
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sdio->oob_irq_flags = irqf;
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}
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