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44253d311f
openwrt/target/linux/bcm53xx/files/drivers/misc/bcm47xx-sprom.c
Rafał Miłecki 44253d311f bcm53xx: sprom: extract for PCI host 
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 44464
2015-02-16 16:13:23 +00:00

753 lines
28 KiB
C
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/*
* BCM47xx/BCM53xx nvram variable access
*
* Copyright (C) 2005 Broadcom Corporation
* Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
* Copyright (C) 2006 Michael Buesch <m@bues.ch>
* Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
* Copyright (C) 2010-2014 Hauke Mehrtens <hauke@hauke-m.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/of_address.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/of_platform.h>
#include <linux/io.h>
#include <linux/ssb/ssb.h>
#include <linux/bcma/bcma.h>
#include <linux/bcm47xx_nvram.h>
#include <linux/if_ether.h>
#include <linux/etherdevice.h>
struct bcm47xx_sprom_fill {
const char *prefix;
bool fallback;
int (*getenv)(const struct bcm47xx_sprom_fill *fill, const char *name,
char *val, size_t val_len);
const void *priv;
};
static void create_key(const char *prefix, const char *postfix,
const char *name, char *buf, int len)
{
if (prefix && postfix)
snprintf(buf, len, "%s%s%s", prefix, name, postfix);
else if (prefix)
snprintf(buf, len, "%s%s", prefix, name);
else if (postfix)
snprintf(buf, len, "%s%s", name, postfix);
else
snprintf(buf, len, "%s", name);
}
static int get_nvram_var(const struct bcm47xx_sprom_fill *fill,
const char *postfix, const char *name, char *buf,
int len)
{
char key[40];
int err;
create_key(fill->prefix, postfix, name, key, sizeof(key));
err = fill->getenv(fill, key, buf, len);
if (fill->fallback && err == -ENOENT && fill->prefix) {
create_key(NULL, postfix, name, key, sizeof(key));
err = fill->getenv(fill, key, buf, len);
}
return err;
}
#define NVRAM_READ_VAL(type) \
static void nvram_read_ ## type (const struct bcm47xx_sprom_fill *fill, \
const char *postfix, const char *name, \
type *val, type allset) \
{ \
char buf[100]; \
int err; \
type var; \
\
err = get_nvram_var(fill, postfix, name, buf, sizeof(buf)); \
if (err < 0) \
return; \
err = kstrto ## type(strim(buf), 0, &var); \
if (err) { \
pr_warn("can not parse nvram name %s%s%s with value %s got %i\n", \
fill->prefix, name, postfix, buf, err); \
return; \
} \
if (allset && var == allset) \
return; \
*val = var; \
}
NVRAM_READ_VAL(u8)
NVRAM_READ_VAL(s8)
NVRAM_READ_VAL(u16)
NVRAM_READ_VAL(u32)
#undef NVRAM_READ_VAL
static void nvram_read_u32_2(const struct bcm47xx_sprom_fill *fill,
const char *name, u16 *val_lo, u16 *val_hi)
{
char buf[100];
int err;
u32 val;
err = get_nvram_var(fill, NULL, name, buf, sizeof(buf));
if (err < 0)
return;
err = kstrtou32(strim(buf), 0, &val);
if (err) {
pr_warn("can not parse nvram name %s%s with value %s got %i\n",
fill->prefix, name, buf, err);
return;
}
*val_lo = (val & 0x0000FFFFU);
*val_hi = (val & 0xFFFF0000U) >> 16;
}
static void nvram_read_leddc(const struct bcm47xx_sprom_fill *fill,
const char *name, u8 *leddc_on_time,
u8 *leddc_off_time)
{
char buf[100];
int err;
u32 val;
err = get_nvram_var(fill, NULL, name, buf, sizeof(buf));
if (err < 0)
return;
err = kstrtou32(strim(buf), 0, &val);
if (err) {
pr_warn("can not parse nvram name %s%s with value %s got %i\n",
fill->prefix, name, buf, err);
return;
}
if (val == 0xffff || val == 0xffffffff)
return;
*leddc_on_time = val & 0xff;
*leddc_off_time = (val >> 16) & 0xff;
}
static void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6])
{
if (strchr(buf, ':'))
sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0],
&macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
&macaddr[5]);
else if (strchr(buf, '-'))
sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0],
&macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
&macaddr[5]);
else
pr_warn("Can not parse mac address: %s\n", buf);
}
static void nvram_read_macaddr(const struct bcm47xx_sprom_fill *fill,
const char *name, u8 val[6])
{
char buf[100];
int err;
err = get_nvram_var(fill, NULL, name, buf, sizeof(buf));
if (err < 0)
return;
bcm47xx_nvram_parse_macaddr(buf, val);
}
static void nvram_read_alpha2(const struct bcm47xx_sprom_fill *fill,
const char *name, char val[2])
{
char buf[10];
int err;
err = get_nvram_var(fill, NULL, name, buf, sizeof(buf));
if (err < 0)
return;
if (buf[0] == '0')
return;
if (strlen(buf) > 2) {
pr_warn("alpha2 is too long %s\n", buf);
return;
}
memcpy(val, buf, 2);
}
static void bcm47xx_sprom_fill_r1234589(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u16(fill, NULL, "devid", &sprom->dev_id, 0);
nvram_read_u8(fill, NULL, "ledbh0", &sprom->gpio0, 0xff);
nvram_read_u8(fill, NULL, "ledbh1", &sprom->gpio1, 0xff);
nvram_read_u8(fill, NULL, "ledbh2", &sprom->gpio2, 0xff);
nvram_read_u8(fill, NULL, "ledbh3", &sprom->gpio3, 0xff);
nvram_read_u8(fill, NULL, "aa2g", &sprom->ant_available_bg, 0);
nvram_read_u8(fill, NULL, "aa5g", &sprom->ant_available_a, 0);
nvram_read_s8(fill, NULL, "ag0", &sprom->antenna_gain.a0, 0);
nvram_read_s8(fill, NULL, "ag1", &sprom->antenna_gain.a1, 0);
nvram_read_alpha2(fill, "ccode", sprom->alpha2);
}
static void bcm47xx_sprom_fill_r12389(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u16(fill, NULL, "pa0b0", &sprom->pa0b0, 0);
nvram_read_u16(fill, NULL, "pa0b1", &sprom->pa0b1, 0);
nvram_read_u16(fill, NULL, "pa0b2", &sprom->pa0b2, 0);
nvram_read_u8(fill, NULL, "pa0itssit", &sprom->itssi_bg, 0);
nvram_read_u8(fill, NULL, "pa0maxpwr", &sprom->maxpwr_bg, 0);
nvram_read_u16(fill, NULL, "pa1b0", &sprom->pa1b0, 0);
nvram_read_u16(fill, NULL, "pa1b1", &sprom->pa1b1, 0);
nvram_read_u16(fill, NULL, "pa1b2", &sprom->pa1b2, 0);
nvram_read_u8(fill, NULL, "pa1itssit", &sprom->itssi_a, 0);
nvram_read_u8(fill, NULL, "pa1maxpwr", &sprom->maxpwr_a, 0);
}
static void bcm47xx_sprom_fill_r1(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u16(fill, NULL, "boardflags", &sprom->boardflags_lo, 0);
nvram_read_u8(fill, NULL, "cc", &sprom->country_code, 0);
}
static void bcm47xx_sprom_fill_r2389(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u8(fill, NULL, "opo", &sprom->opo, 0);
nvram_read_u16(fill, NULL, "pa1lob0", &sprom->pa1lob0, 0);
nvram_read_u16(fill, NULL, "pa1lob1", &sprom->pa1lob1, 0);
nvram_read_u16(fill, NULL, "pa1lob2", &sprom->pa1lob2, 0);
nvram_read_u16(fill, NULL, "pa1hib0", &sprom->pa1hib0, 0);
nvram_read_u16(fill, NULL, "pa1hib1", &sprom->pa1hib1, 0);
nvram_read_u16(fill, NULL, "pa1hib2", &sprom->pa1hib2, 0);
nvram_read_u8(fill, NULL, "pa1lomaxpwr", &sprom->maxpwr_al, 0);
nvram_read_u8(fill, NULL, "pa1himaxpwr", &sprom->maxpwr_ah, 0);
}
static void bcm47xx_sprom_fill_r389(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u8(fill, NULL, "bxa2g", &sprom->bxa2g, 0);
nvram_read_u8(fill, NULL, "rssisav2g", &sprom->rssisav2g, 0);
nvram_read_u8(fill, NULL, "rssismc2g", &sprom->rssismc2g, 0);
nvram_read_u8(fill, NULL, "rssismf2g", &sprom->rssismf2g, 0);
nvram_read_u8(fill, NULL, "bxa5g", &sprom->bxa5g, 0);
nvram_read_u8(fill, NULL, "rssisav5g", &sprom->rssisav5g, 0);
nvram_read_u8(fill, NULL, "rssismc5g", &sprom->rssismc5g, 0);
nvram_read_u8(fill, NULL, "rssismf5g", &sprom->rssismf5g, 0);
nvram_read_u8(fill, NULL, "tri2g", &sprom->tri2g, 0);
nvram_read_u8(fill, NULL, "tri5g", &sprom->tri5g, 0);
nvram_read_u8(fill, NULL, "tri5gl", &sprom->tri5gl, 0);
nvram_read_u8(fill, NULL, "tri5gh", &sprom->tri5gh, 0);
nvram_read_s8(fill, NULL, "rxpo2g", &sprom->rxpo2g, 0);
nvram_read_s8(fill, NULL, "rxpo5g", &sprom->rxpo5g, 0);
}
static void bcm47xx_sprom_fill_r3(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u8(fill, NULL, "regrev", &sprom->regrev, 0);
nvram_read_leddc(fill, "leddc", &sprom->leddc_on_time,
&sprom->leddc_off_time);
}
static void bcm47xx_sprom_fill_r4589(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u8(fill, NULL, "regrev", &sprom->regrev, 0);
nvram_read_s8(fill, NULL, "ag2", &sprom->antenna_gain.a2, 0);
nvram_read_s8(fill, NULL, "ag3", &sprom->antenna_gain.a3, 0);
nvram_read_u8(fill, NULL, "txchain", &sprom->txchain, 0xf);
nvram_read_u8(fill, NULL, "rxchain", &sprom->rxchain, 0xf);
nvram_read_u8(fill, NULL, "antswitch", &sprom->antswitch, 0xff);
nvram_read_leddc(fill, "leddc", &sprom->leddc_on_time,
&sprom->leddc_off_time);
}
static void bcm47xx_sprom_fill_r458(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u16(fill, NULL, "cck2gpo", &sprom->cck2gpo, 0);
nvram_read_u32(fill, NULL, "ofdm2gpo", &sprom->ofdm2gpo, 0);
nvram_read_u32(fill, NULL, "ofdm5gpo", &sprom->ofdm5gpo, 0);
nvram_read_u32(fill, NULL, "ofdm5glpo", &sprom->ofdm5glpo, 0);
nvram_read_u32(fill, NULL, "ofdm5ghpo", &sprom->ofdm5ghpo, 0);
nvram_read_u16(fill, NULL, "cddpo", &sprom->cddpo, 0);
nvram_read_u16(fill, NULL, "stbcpo", &sprom->stbcpo, 0);
nvram_read_u16(fill, NULL, "bw40po", &sprom->bw40po, 0);
nvram_read_u16(fill, NULL, "bwduppo", &sprom->bwduppo, 0);
nvram_read_u16(fill, NULL, "mcs2gpo0", &sprom->mcs2gpo[0], 0);
nvram_read_u16(fill, NULL, "mcs2gpo1", &sprom->mcs2gpo[1], 0);
nvram_read_u16(fill, NULL, "mcs2gpo2", &sprom->mcs2gpo[2], 0);
nvram_read_u16(fill, NULL, "mcs2gpo3", &sprom->mcs2gpo[3], 0);
nvram_read_u16(fill, NULL, "mcs2gpo4", &sprom->mcs2gpo[4], 0);
nvram_read_u16(fill, NULL, "mcs2gpo5", &sprom->mcs2gpo[5], 0);
nvram_read_u16(fill, NULL, "mcs2gpo6", &sprom->mcs2gpo[6], 0);
nvram_read_u16(fill, NULL, "mcs2gpo7", &sprom->mcs2gpo[7], 0);
nvram_read_u16(fill, NULL, "mcs5gpo0", &sprom->mcs5gpo[0], 0);
nvram_read_u16(fill, NULL, "mcs5gpo1", &sprom->mcs5gpo[1], 0);
nvram_read_u16(fill, NULL, "mcs5gpo2", &sprom->mcs5gpo[2], 0);
nvram_read_u16(fill, NULL, "mcs5gpo3", &sprom->mcs5gpo[3], 0);
nvram_read_u16(fill, NULL, "mcs5gpo4", &sprom->mcs5gpo[4], 0);
nvram_read_u16(fill, NULL, "mcs5gpo5", &sprom->mcs5gpo[5], 0);
nvram_read_u16(fill, NULL, "mcs5gpo6", &sprom->mcs5gpo[6], 0);
nvram_read_u16(fill, NULL, "mcs5gpo7", &sprom->mcs5gpo[7], 0);
nvram_read_u16(fill, NULL, "mcs5glpo0", &sprom->mcs5glpo[0], 0);
nvram_read_u16(fill, NULL, "mcs5glpo1", &sprom->mcs5glpo[1], 0);
nvram_read_u16(fill, NULL, "mcs5glpo2", &sprom->mcs5glpo[2], 0);
nvram_read_u16(fill, NULL, "mcs5glpo3", &sprom->mcs5glpo[3], 0);
nvram_read_u16(fill, NULL, "mcs5glpo4", &sprom->mcs5glpo[4], 0);
nvram_read_u16(fill, NULL, "mcs5glpo5", &sprom->mcs5glpo[5], 0);
nvram_read_u16(fill, NULL, "mcs5glpo6", &sprom->mcs5glpo[6], 0);
nvram_read_u16(fill, NULL, "mcs5glpo7", &sprom->mcs5glpo[7], 0);
nvram_read_u16(fill, NULL, "mcs5ghpo0", &sprom->mcs5ghpo[0], 0);
nvram_read_u16(fill, NULL, "mcs5ghpo1", &sprom->mcs5ghpo[1], 0);
nvram_read_u16(fill, NULL, "mcs5ghpo2", &sprom->mcs5ghpo[2], 0);
nvram_read_u16(fill, NULL, "mcs5ghpo3", &sprom->mcs5ghpo[3], 0);
nvram_read_u16(fill, NULL, "mcs5ghpo4", &sprom->mcs5ghpo[4], 0);
nvram_read_u16(fill, NULL, "mcs5ghpo5", &sprom->mcs5ghpo[5], 0);
nvram_read_u16(fill, NULL, "mcs5ghpo6", &sprom->mcs5ghpo[6], 0);
nvram_read_u16(fill, NULL, "mcs5ghpo7", &sprom->mcs5ghpo[7], 0);
}
static void bcm47xx_sprom_fill_r45(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u8(fill, NULL, "txpid2ga0", &sprom->txpid2g[0], 0);
nvram_read_u8(fill, NULL, "txpid2ga1", &sprom->txpid2g[1], 0);
nvram_read_u8(fill, NULL, "txpid2ga2", &sprom->txpid2g[2], 0);
nvram_read_u8(fill, NULL, "txpid2ga3", &sprom->txpid2g[3], 0);
nvram_read_u8(fill, NULL, "txpid5ga0", &sprom->txpid5g[0], 0);
nvram_read_u8(fill, NULL, "txpid5ga1", &sprom->txpid5g[1], 0);
nvram_read_u8(fill, NULL, "txpid5ga2", &sprom->txpid5g[2], 0);
nvram_read_u8(fill, NULL, "txpid5ga3", &sprom->txpid5g[3], 0);
nvram_read_u8(fill, NULL, "txpid5gla0", &sprom->txpid5gl[0], 0);
nvram_read_u8(fill, NULL, "txpid5gla1", &sprom->txpid5gl[1], 0);
nvram_read_u8(fill, NULL, "txpid5gla2", &sprom->txpid5gl[2], 0);
nvram_read_u8(fill, NULL, "txpid5gla3", &sprom->txpid5gl[3], 0);
nvram_read_u8(fill, NULL, "txpid5gha0", &sprom->txpid5gh[0], 0);
nvram_read_u8(fill, NULL, "txpid5gha1", &sprom->txpid5gh[1], 0);
nvram_read_u8(fill, NULL, "txpid5gha2", &sprom->txpid5gh[2], 0);
nvram_read_u8(fill, NULL, "txpid5gha3", &sprom->txpid5gh[3], 0);
}
static void bcm47xx_sprom_fill_r89(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u8(fill, NULL, "tssipos2g", &sprom->fem.ghz2.tssipos, 0);
nvram_read_u8(fill, NULL, "extpagain2g", &sprom->fem.ghz2.extpa_gain, 0);
nvram_read_u8(fill, NULL, "pdetrange2g", &sprom->fem.ghz2.pdet_range, 0);
nvram_read_u8(fill, NULL, "triso2g", &sprom->fem.ghz2.tr_iso, 0);
nvram_read_u8(fill, NULL, "antswctl2g", &sprom->fem.ghz2.antswlut, 0);
nvram_read_u8(fill, NULL, "tssipos5g", &sprom->fem.ghz5.tssipos, 0);
nvram_read_u8(fill, NULL, "extpagain5g", &sprom->fem.ghz5.extpa_gain, 0);
nvram_read_u8(fill, NULL, "pdetrange5g", &sprom->fem.ghz5.pdet_range, 0);
nvram_read_u8(fill, NULL, "triso5g", &sprom->fem.ghz5.tr_iso, 0);
nvram_read_u8(fill, NULL, "antswctl5g", &sprom->fem.ghz5.antswlut, 0);
nvram_read_u8(fill, NULL, "tempthresh", &sprom->tempthresh, 0);
nvram_read_u8(fill, NULL, "tempoffset", &sprom->tempoffset, 0);
nvram_read_u16(fill, NULL, "rawtempsense", &sprom->rawtempsense, 0);
nvram_read_u8(fill, NULL, "measpower", &sprom->measpower, 0);
nvram_read_u8(fill, NULL, "tempsense_slope", &sprom->tempsense_slope, 0);
nvram_read_u8(fill, NULL, "tempcorrx", &sprom->tempcorrx, 0);
nvram_read_u8(fill, NULL, "tempsense_option", &sprom->tempsense_option, 0);
nvram_read_u8(fill, NULL, "freqoffset_corr", &sprom->freqoffset_corr, 0);
nvram_read_u8(fill, NULL, "iqcal_swp_dis", &sprom->iqcal_swp_dis, 0);
nvram_read_u8(fill, NULL, "hw_iqcal_en", &sprom->hw_iqcal_en, 0);
nvram_read_u8(fill, NULL, "elna2g", &sprom->elna2g, 0);
nvram_read_u8(fill, NULL, "elna5g", &sprom->elna5g, 0);
nvram_read_u8(fill, NULL, "phycal_tempdelta", &sprom->phycal_tempdelta, 0);
nvram_read_u8(fill, NULL, "temps_period", &sprom->temps_period, 0);
nvram_read_u8(fill, NULL, "temps_hysteresis", &sprom->temps_hysteresis, 0);
nvram_read_u8(fill, NULL, "measpower1", &sprom->measpower1, 0);
nvram_read_u8(fill, NULL, "measpower2", &sprom->measpower2, 0);
nvram_read_u8(fill, NULL, "rxgainerr2ga0", &sprom->rxgainerr2ga[0], 0);
nvram_read_u8(fill, NULL, "rxgainerr2ga1", &sprom->rxgainerr2ga[1], 0);
nvram_read_u8(fill, NULL, "rxgainerr2ga2", &sprom->rxgainerr2ga[2], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gla0", &sprom->rxgainerr5gla[0], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gla1", &sprom->rxgainerr5gla[1], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gla2", &sprom->rxgainerr5gla[2], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gma0", &sprom->rxgainerr5gma[0], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gma1", &sprom->rxgainerr5gma[1], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gma2", &sprom->rxgainerr5gma[2], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gha0", &sprom->rxgainerr5gha[0], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gha1", &sprom->rxgainerr5gha[1], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gha2", &sprom->rxgainerr5gha[2], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gua0", &sprom->rxgainerr5gua[0], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gua1", &sprom->rxgainerr5gua[1], 0);
nvram_read_u8(fill, NULL, "rxgainerr5gua2", &sprom->rxgainerr5gua[2], 0);
nvram_read_u8(fill, NULL, "noiselvl2ga0", &sprom->noiselvl2ga[0], 0);
nvram_read_u8(fill, NULL, "noiselvl2ga1", &sprom->noiselvl2ga[1], 0);
nvram_read_u8(fill, NULL, "noiselvl2ga2", &sprom->noiselvl2ga[2], 0);
nvram_read_u8(fill, NULL, "noiselvl5gla0", &sprom->noiselvl5gla[0], 0);
nvram_read_u8(fill, NULL, "noiselvl5gla1", &sprom->noiselvl5gla[1], 0);
nvram_read_u8(fill, NULL, "noiselvl5gla2", &sprom->noiselvl5gla[2], 0);
nvram_read_u8(fill, NULL, "noiselvl5gma0", &sprom->noiselvl5gma[0], 0);
nvram_read_u8(fill, NULL, "noiselvl5gma1", &sprom->noiselvl5gma[1], 0);
nvram_read_u8(fill, NULL, "noiselvl5gma2", &sprom->noiselvl5gma[2], 0);
nvram_read_u8(fill, NULL, "noiselvl5gha0", &sprom->noiselvl5gha[0], 0);
nvram_read_u8(fill, NULL, "noiselvl5gha1", &sprom->noiselvl5gha[1], 0);
nvram_read_u8(fill, NULL, "noiselvl5gha2", &sprom->noiselvl5gha[2], 0);
nvram_read_u8(fill, NULL, "noiselvl5gua0", &sprom->noiselvl5gua[0], 0);
nvram_read_u8(fill, NULL, "noiselvl5gua1", &sprom->noiselvl5gua[1], 0);
nvram_read_u8(fill, NULL, "noiselvl5gua2", &sprom->noiselvl5gua[2], 0);
nvram_read_u8(fill, NULL, "pcieingress_war", &sprom->pcieingress_war, 0);
}
static void bcm47xx_sprom_fill_r9(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u16(fill, NULL, "cckbw202gpo", &sprom->cckbw202gpo, 0);
nvram_read_u16(fill, NULL, "cckbw20ul2gpo", &sprom->cckbw20ul2gpo, 0);
nvram_read_u32(fill, NULL, "legofdmbw202gpo", &sprom->legofdmbw202gpo, 0);
nvram_read_u32(fill, NULL, "legofdmbw20ul2gpo", &sprom->legofdmbw20ul2gpo, 0);
nvram_read_u32(fill, NULL, "legofdmbw205glpo", &sprom->legofdmbw205glpo, 0);
nvram_read_u32(fill, NULL, "legofdmbw20ul5glpo", &sprom->legofdmbw20ul5glpo, 0);
nvram_read_u32(fill, NULL, "legofdmbw205gmpo", &sprom->legofdmbw205gmpo, 0);
nvram_read_u32(fill, NULL, "legofdmbw20ul5gmpo", &sprom->legofdmbw20ul5gmpo, 0);
nvram_read_u32(fill, NULL, "legofdmbw205ghpo", &sprom->legofdmbw205ghpo, 0);
nvram_read_u32(fill, NULL, "legofdmbw20ul5ghpo", &sprom->legofdmbw20ul5ghpo, 0);
nvram_read_u32(fill, NULL, "mcsbw202gpo", &sprom->mcsbw202gpo, 0);
nvram_read_u32(fill, NULL, "mcsbw20ul2gpo", &sprom->mcsbw20ul2gpo, 0);
nvram_read_u32(fill, NULL, "mcsbw402gpo", &sprom->mcsbw402gpo, 0);
nvram_read_u32(fill, NULL, "mcsbw205glpo", &sprom->mcsbw205glpo, 0);
nvram_read_u32(fill, NULL, "mcsbw20ul5glpo", &sprom->mcsbw20ul5glpo, 0);
nvram_read_u32(fill, NULL, "mcsbw405glpo", &sprom->mcsbw405glpo, 0);
nvram_read_u32(fill, NULL, "mcsbw205gmpo", &sprom->mcsbw205gmpo, 0);
nvram_read_u32(fill, NULL, "mcsbw20ul5gmpo", &sprom->mcsbw20ul5gmpo, 0);
nvram_read_u32(fill, NULL, "mcsbw405gmpo", &sprom->mcsbw405gmpo, 0);
nvram_read_u32(fill, NULL, "mcsbw205ghpo", &sprom->mcsbw205ghpo, 0);
nvram_read_u32(fill, NULL, "mcsbw20ul5ghpo", &sprom->mcsbw20ul5ghpo, 0);
nvram_read_u32(fill, NULL, "mcsbw405ghpo", &sprom->mcsbw405ghpo, 0);
nvram_read_u16(fill, NULL, "mcs32po", &sprom->mcs32po, 0);
nvram_read_u16(fill, NULL, "legofdm40duppo", &sprom->legofdm40duppo, 0);
nvram_read_u8(fill, NULL, "sar2g", &sprom->sar2g, 0);
nvram_read_u8(fill, NULL, "sar5g", &sprom->sar5g, 0);
}
static void bcm47xx_sprom_fill_path_r4589(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
char postfix[2];
int i;
for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
snprintf(postfix, sizeof(postfix), "%i", i);
nvram_read_u8(fill, postfix, "maxp2ga", &pwr_info->maxpwr_2g, 0);
nvram_read_u8(fill, postfix, "itt2ga", &pwr_info->itssi_2g, 0);
nvram_read_u8(fill, postfix, "itt5ga", &pwr_info->itssi_5g, 0);
nvram_read_u16(fill, postfix, "pa2gw0a", &pwr_info->pa_2g[0], 0);
nvram_read_u16(fill, postfix, "pa2gw1a", &pwr_info->pa_2g[1], 0);
nvram_read_u16(fill, postfix, "pa2gw2a", &pwr_info->pa_2g[2], 0);
nvram_read_u8(fill, postfix, "maxp5ga", &pwr_info->maxpwr_5g, 0);
nvram_read_u8(fill, postfix, "maxp5gha", &pwr_info->maxpwr_5gh, 0);
nvram_read_u8(fill, postfix, "maxp5gla", &pwr_info->maxpwr_5gl, 0);
nvram_read_u16(fill, postfix, "pa5gw0a", &pwr_info->pa_5g[0], 0);
nvram_read_u16(fill, postfix, "pa5gw1a", &pwr_info->pa_5g[1], 0);
nvram_read_u16(fill, postfix, "pa5gw2a", &pwr_info->pa_5g[2], 0);
nvram_read_u16(fill, postfix, "pa5glw0a", &pwr_info->pa_5gl[0], 0);
nvram_read_u16(fill, postfix, "pa5glw1a", &pwr_info->pa_5gl[1], 0);
nvram_read_u16(fill, postfix, "pa5glw2a", &pwr_info->pa_5gl[2], 0);
nvram_read_u16(fill, postfix, "pa5ghw0a", &pwr_info->pa_5gh[0], 0);
nvram_read_u16(fill, postfix, "pa5ghw1a", &pwr_info->pa_5gh[1], 0);
nvram_read_u16(fill, postfix, "pa5ghw2a", &pwr_info->pa_5gh[2], 0);
}
}
static void bcm47xx_sprom_fill_path_r45(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
char postfix[2];
int i;
for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
snprintf(postfix, sizeof(postfix), "%i", i);
nvram_read_u16(fill, postfix, "pa2gw3a", &pwr_info->pa_2g[3], 0);
nvram_read_u16(fill, postfix, "pa5gw3a", &pwr_info->pa_5g[3], 0);
nvram_read_u16(fill, postfix, "pa5glw3a", &pwr_info->pa_5gl[3], 0);
nvram_read_u16(fill, postfix, "pa5ghw3a", &pwr_info->pa_5gh[3], 0);
}
}
static bool bcm47xx_is_valid_mac(u8 *mac)
{
return mac && !(mac[0] == 0x00 && mac[1] == 0x90 && mac[2] == 0x4c);
}
static int bcm47xx_increase_mac_addr(u8 *mac, u8 num)
{
u8 *oui = mac + ETH_ALEN/2 - 1;
u8 *p = mac + ETH_ALEN - 1;
do {
(*p) += num;
if (*p > num)
break;
p--;
num = 1;
} while (p != oui);
if (p == oui) {
pr_err("unable to fetch mac address\n");
return -ENOENT;
}
return 0;
}
/*
* This is a global counter because different instances of sprom will
* access the same nvram.
*/
static int mac_addr_used = 2;
static void bcm47xx_sprom_fill_ethernet(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_macaddr(fill, "et0macaddr", sprom->et0mac);
nvram_read_u8(fill, NULL, "et0mdcport", &sprom->et0mdcport, 0);
nvram_read_u8(fill, NULL, "et0phyaddr", &sprom->et0phyaddr, 0);
nvram_read_macaddr(fill, "et1macaddr", sprom->et1mac);
nvram_read_u8(fill, NULL, "et1mdcport", &sprom->et1mdcport, 0);
nvram_read_u8(fill, NULL, "et1phyaddr", &sprom->et1phyaddr, 0);
nvram_read_macaddr(fill, "macaddr", sprom->il0mac);
nvram_read_macaddr(fill, "il0macaddr", sprom->il0mac);
/*
* The address prefix 00:90:4C is used by Broadcom in their initial
* configuration. When a mac address with the prefix 00:90:4C is used
* all devices from the same series are sharing the same mac address.
* To prevent mac address collisions we replace them with a mac address
* based on the base address.
*/
if (!bcm47xx_is_valid_mac(sprom->il0mac)) {
u8 mac[6];
struct bcm47xx_sprom_fill fill_no_prefix;
memcpy(&fill_no_prefix, fill, sizeof(fill_no_prefix));
fill_no_prefix.prefix = NULL;
nvram_read_macaddr(&fill_no_prefix, "et0macaddr", mac);
if (bcm47xx_is_valid_mac(mac)) {
int err = bcm47xx_increase_mac_addr(mac, mac_addr_used);
if (!err) {
ether_addr_copy(sprom->il0mac, mac);
mac_addr_used++;
}
}
}
}
static void bcm47xx_sprom_fill_board_data(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
nvram_read_u16(fill, NULL, "boardrev", &sprom->board_rev, 0);
nvram_read_u16(fill, NULL, "boardnum", &sprom->board_num, 0);
nvram_read_u16(fill, NULL, "boardtype", &sprom->board_type, 0);
nvram_read_u32_2(fill, "boardflags", &sprom->boardflags_lo,
&sprom->boardflags_hi);
nvram_read_u32_2(fill, "boardflags2", &sprom->boardflags2_lo,
&sprom->boardflags2_hi);
}
static void bcm47xx_sprom_fill(struct ssb_sprom *sprom,
const struct bcm47xx_sprom_fill *fill)
{
bcm47xx_sprom_fill_ethernet(sprom, fill);
bcm47xx_sprom_fill_board_data(sprom, fill);
nvram_read_u8(fill, NULL, "sromrev", &sprom->revision, 0);
switch (sprom->revision) {
case 1:
bcm47xx_sprom_fill_r1234589(sprom, fill);
bcm47xx_sprom_fill_r12389(sprom, fill);
bcm47xx_sprom_fill_r1(sprom, fill);
break;
case 2:
bcm47xx_sprom_fill_r1234589(sprom, fill);
bcm47xx_sprom_fill_r12389(sprom, fill);
bcm47xx_sprom_fill_r2389(sprom, fill);
break;
case 3:
bcm47xx_sprom_fill_r1234589(sprom, fill);
bcm47xx_sprom_fill_r12389(sprom, fill);
bcm47xx_sprom_fill_r2389(sprom, fill);
bcm47xx_sprom_fill_r389(sprom, fill);
bcm47xx_sprom_fill_r3(sprom, fill);
break;
case 4:
case 5:
bcm47xx_sprom_fill_r1234589(sprom, fill);
bcm47xx_sprom_fill_r4589(sprom, fill);
bcm47xx_sprom_fill_r458(sprom, fill);
bcm47xx_sprom_fill_r45(sprom, fill);
bcm47xx_sprom_fill_path_r4589(sprom, fill);
bcm47xx_sprom_fill_path_r45(sprom, fill);
break;
case 8:
bcm47xx_sprom_fill_r1234589(sprom, fill);
bcm47xx_sprom_fill_r12389(sprom, fill);
bcm47xx_sprom_fill_r2389(sprom, fill);
bcm47xx_sprom_fill_r389(sprom, fill);
bcm47xx_sprom_fill_r4589(sprom, fill);
bcm47xx_sprom_fill_r458(sprom, fill);
bcm47xx_sprom_fill_r89(sprom, fill);
bcm47xx_sprom_fill_path_r4589(sprom, fill);
break;
case 9:
bcm47xx_sprom_fill_r1234589(sprom, fill);
bcm47xx_sprom_fill_r12389(sprom, fill);
bcm47xx_sprom_fill_r2389(sprom, fill);
bcm47xx_sprom_fill_r389(sprom, fill);
bcm47xx_sprom_fill_r4589(sprom, fill);
bcm47xx_sprom_fill_r89(sprom, fill);
bcm47xx_sprom_fill_r9(sprom, fill);
bcm47xx_sprom_fill_path_r4589(sprom, fill);
break;
default:
pr_warn("Unsupported SPROM revision %d detected. Will extract v1\n",
sprom->revision);
sprom->revision = 1;
bcm47xx_sprom_fill_r1234589(sprom, fill);
bcm47xx_sprom_fill_r12389(sprom, fill);
bcm47xx_sprom_fill_r1(sprom, fill);
}
}
static int bcm47xx_sprom_getenv(const struct bcm47xx_sprom_fill *fill,
const char *name, char *val, size_t val_len)
{
return bcm47xx_nvram_getenv(name, val, val_len);
};
/* FIXME: This should not be static, but some callback argument */
static struct platform_device *sprom_pdev = NULL;
static char prefix[20];
static void bcm47xx_sprom_apply_prefix_alias(char *prefix, size_t prefix_len)
{
size_t needle_len = strlen(prefix) - 1;
char nvram_var[10];
char buf[20];
int i;
if (needle_len <= 0 || prefix[needle_len] != '/')
return;
for (i = 0; i < 3; i++) {
if (snprintf(nvram_var, sizeof(nvram_var), "devpath%d", i) <= 0)
continue;
if (bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf)) < 0)
continue;
if (strlen(buf) == needle_len && !strncmp(buf, prefix, needle_len)) {
snprintf(prefix, prefix_len, "%d:", i);
return;
}
}
}
/*
* This function has to be called in a very precise moment. It has to be done:
* 1) After bcma registers flash cores, so we can read NVRAM.
* 2) Before any code needs SPROM content.
*
* This can be achieved only by using bcma callback.
*/
static int bcm47xx_sprom_init(struct bcma_bus *bus, struct ssb_sprom *out)
{
struct platform_device *pdev = sprom_pdev;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
const __be32 *handle;
struct device_node *nvram_node;
struct platform_device *nvram_dev;
struct bcm47xx_sprom_fill fill;
handle = of_get_property(np, "nvram", NULL);
if (!handle)
return -ENOMEM;
nvram_node = of_find_node_by_phandle(be32_to_cpup(handle));
if (!nvram_node)
return -ENOMEM;
nvram_dev = of_find_device_by_node(nvram_node);
if (!nvram_dev)
return -ENOMEM;
switch (bus->hosttype) {
case BCMA_HOSTTYPE_PCI:
snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
pci_domain_nr(bus->host_pci->bus) + 1,
bus->host_pci->bus->number);
bcm47xx_sprom_apply_prefix_alias(prefix, sizeof(prefix));
fill.prefix = prefix;
break;
case BCMA_HOSTTYPE_SOC:
fill.prefix = of_get_property(np, "prefix", NULL);
break;
default:
pr_err("Unable to fill SPROM for given hosttype.\n");
return -EINVAL;
}
fill.fallback = false;
fill.getenv = bcm47xx_sprom_getenv;
fill.priv = nvram_dev;
bcm47xx_sprom_fill(out, &fill);
return 0;
};
static int bcm47xx_sprom_probe(struct platform_device *pdev)
{
/* This is the only way to make pdev accessible to the callback */
sprom_pdev = pdev;
return bcma_arch_register_fallback_sprom(&bcm47xx_sprom_init);
}
static const struct of_device_id bcm47xx_sprom_of_match_table[] = {
{ .compatible = "brcm,bcm47xx-sprom", },
{},
};
MODULE_DEVICE_TABLE(of, mvebu_pcie_of_match_table);
static struct platform_driver bcm47xx_sprom_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "bcm47xx-sprom",
.of_match_table = bcm47xx_sprom_of_match_table,
/* driver unloading/unbinding currently not supported */
.suppress_bind_attrs = true,
},
.probe = bcm47xx_sprom_probe,
};
module_platform_driver(bcm47xx_sprom_driver);
MODULE_AUTHOR("Hauke Mehrtens <hauke@hauke-m.de>");
MODULE_LICENSE("GPL v2");
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