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