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openwrt/target/linux/generic/files/drivers/bcma/fallback-sprom.c
Álvaro Fernández Rojas 60acbbb1af kernel: bcma: fallback-sprom: check hosttype 
host_pci is only defined when hosttype is BCMA_HOSTTYPE_PCI.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-04-24 21:02:29 +02:00

534 lines
17 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* BCMA Fallback SPROM Driver
*
* Copyright (C) 2020 Álvaro Fernández Rojas <noltari@gmail.com>
* Copyright (C) 2014 Jonas Gorski <jonas.gorski@gmail.com>
* Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
* Copyright (C) 2008 Florian Fainelli <f.fainelli@gmail.com>
*/
#include <linux/bcma/bcma.h>
#include <linux/etherdevice.h>
#include <linux/firmware.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mtd/mtd.h>
#include <linux/of_net.h>
#include <linux/of_platform.h>
#define BCMA_FBS_MAX_SIZE 468
/* SPROM Extraction */
#define SPOFF(offset) ((offset) / sizeof(u16))
#define SPEX(_outvar, _offset, _mask, _shift) \
out->_outvar = ((in[SPOFF(_offset)] & (_mask)) >> (_shift))
#define SPEX32(_outvar, _offset, _mask, _shift) \
out->_outvar = ((((u32)in[SPOFF((_offset)+2)] << 16 | \
in[SPOFF(_offset)]) & (_mask)) >> (_shift))
#define SPEX_ARRAY8(_field, _offset, _mask, _shift) \
do { \
SPEX(_field[0], _offset + 0, _mask, _shift); \
SPEX(_field[1], _offset + 2, _mask, _shift); \
SPEX(_field[2], _offset + 4, _mask, _shift); \
SPEX(_field[3], _offset + 6, _mask, _shift); \
SPEX(_field[4], _offset + 8, _mask, _shift); \
SPEX(_field[5], _offset + 10, _mask, _shift); \
SPEX(_field[6], _offset + 12, _mask, _shift); \
SPEX(_field[7], _offset + 14, _mask, _shift); \
} while (0)
struct bcma_fbs {
struct device *dev;
struct list_head list;
struct ssb_sprom sprom;
u32 pci_bus;
u32 pci_dev;
bool devid_override;
};
static DEFINE_SPINLOCK(bcma_fbs_lock);
static struct list_head bcma_fbs_list = LIST_HEAD_INIT(bcma_fbs_list);
int bcma_get_fallback_sprom(struct bcma_bus *bus, struct ssb_sprom *out)
{
struct bcma_fbs *pos;
u32 pci_bus, pci_dev;
if (bus->hosttype != BCMA_HOSTTYPE_PCI)
return -ENOENT;
pci_bus = bus->host_pci->bus->number;
pci_dev = PCI_SLOT(bus->host_pci->devfn);
list_for_each_entry(pos, &bcma_fbs_list, list) {
if (pos->pci_bus != pci_bus ||
pos->pci_dev != pci_dev)
continue;
if (pos->devid_override)
bus->host_pci->device = pos->sprom.dev_id;
memcpy(out, &pos->sprom, sizeof(struct ssb_sprom));
dev_info(pos->dev, "requested by [%x:%x]",
pos->pci_bus, pos->pci_dev);
return 0;
}
pr_err("unable to fill SPROM for [%x:%x]\n", pci_bus, pci_dev);
return -EINVAL;
}
static s8 sprom_extract_antgain(const u16 *in, u16 offset, u16 mask, u16 shift)
{
u16 v;
u8 gain;
v = in[SPOFF(offset)];
gain = (v & mask) >> shift;
if (gain == 0xFF) {
gain = 8; /* If unset use 2dBm */
} else {
/* Q5.2 Fractional part is stored in 0xC0 */
gain = ((gain & 0xC0) >> 6) | ((gain & 0x3F) << 2);
}
return (s8)gain;
}
static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in)
{
static const u16 pwr_info_offset[] = {
SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1,
SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3
};
u16 o;
int i;
BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) !=
ARRAY_SIZE(out->core_pwr_info));
SPEX(board_rev, SSB_SPROM8_BOARDREV, ~0, 0);
SPEX(board_type, SSB_SPROM1_SPID, ~0, 0);
SPEX(txpid2g[0], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G0,
SSB_SPROM4_TXPID2G0_SHIFT);
SPEX(txpid2g[1], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G1,
SSB_SPROM4_TXPID2G1_SHIFT);
SPEX(txpid2g[2], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G2,
SSB_SPROM4_TXPID2G2_SHIFT);
SPEX(txpid2g[3], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G3,
SSB_SPROM4_TXPID2G3_SHIFT);
SPEX(txpid5gl[0], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL0,
SSB_SPROM4_TXPID5GL0_SHIFT);
SPEX(txpid5gl[1], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL1,
SSB_SPROM4_TXPID5GL1_SHIFT);
SPEX(txpid5gl[2], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL2,
SSB_SPROM4_TXPID5GL2_SHIFT);
SPEX(txpid5gl[3], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL3,
SSB_SPROM4_TXPID5GL3_SHIFT);
SPEX(txpid5g[0], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G0,
SSB_SPROM4_TXPID5G0_SHIFT);
SPEX(txpid5g[1], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G1,
SSB_SPROM4_TXPID5G1_SHIFT);
SPEX(txpid5g[2], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G2,
SSB_SPROM4_TXPID5G2_SHIFT);
SPEX(txpid5g[3], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G3,
SSB_SPROM4_TXPID5G3_SHIFT);
SPEX(txpid5gh[0], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH0,
SSB_SPROM4_TXPID5GH0_SHIFT);
SPEX(txpid5gh[1], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH1,
SSB_SPROM4_TXPID5GH1_SHIFT);
SPEX(txpid5gh[2], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH2,
SSB_SPROM4_TXPID5GH2_SHIFT);
SPEX(txpid5gh[3], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH3,
SSB_SPROM4_TXPID5GH3_SHIFT);
SPEX(boardflags_lo, SSB_SPROM8_BFLLO, ~0, 0);
SPEX(boardflags_hi, SSB_SPROM8_BFLHI, ~0, 0);
SPEX(boardflags2_lo, SSB_SPROM8_BFL2LO, ~0, 0);
SPEX(boardflags2_hi, SSB_SPROM8_BFL2HI, ~0, 0);
SPEX(alpha2[0], SSB_SPROM8_CCODE, 0xff00, 8);
SPEX(alpha2[1], SSB_SPROM8_CCODE, 0x00ff, 0);
/* Extract core's power info */
for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) {
o = pwr_info_offset[i];
SPEX(core_pwr_info[i].itssi_2g, o + SSB_SROM8_2G_MAXP_ITSSI,
SSB_SPROM8_2G_ITSSI, SSB_SPROM8_2G_ITSSI_SHIFT);
SPEX(core_pwr_info[i].maxpwr_2g, o + SSB_SROM8_2G_MAXP_ITSSI,
SSB_SPROM8_2G_MAXP, 0);
SPEX(core_pwr_info[i].pa_2g[0], o + SSB_SROM8_2G_PA_0, ~0, 0);
SPEX(core_pwr_info[i].pa_2g[1], o + SSB_SROM8_2G_PA_1, ~0, 0);
SPEX(core_pwr_info[i].pa_2g[2], o + SSB_SROM8_2G_PA_2, ~0, 0);
SPEX(core_pwr_info[i].itssi_5g, o + SSB_SROM8_5G_MAXP_ITSSI,
SSB_SPROM8_5G_ITSSI, SSB_SPROM8_5G_ITSSI_SHIFT);
SPEX(core_pwr_info[i].maxpwr_5g, o + SSB_SROM8_5G_MAXP_ITSSI,
SSB_SPROM8_5G_MAXP, 0);
SPEX(core_pwr_info[i].maxpwr_5gh, o + SSB_SPROM8_5GHL_MAXP,
SSB_SPROM8_5GH_MAXP, 0);
SPEX(core_pwr_info[i].maxpwr_5gl, o + SSB_SPROM8_5GHL_MAXP,
SSB_SPROM8_5GL_MAXP, SSB_SPROM8_5GL_MAXP_SHIFT);
SPEX(core_pwr_info[i].pa_5gl[0], o + SSB_SROM8_5GL_PA_0, ~0, 0);
SPEX(core_pwr_info[i].pa_5gl[1], o + SSB_SROM8_5GL_PA_1, ~0, 0);
SPEX(core_pwr_info[i].pa_5gl[2], o + SSB_SROM8_5GL_PA_2, ~0, 0);
SPEX(core_pwr_info[i].pa_5g[0], o + SSB_SROM8_5G_PA_0, ~0, 0);
SPEX(core_pwr_info[i].pa_5g[1], o + SSB_SROM8_5G_PA_1, ~0, 0);
SPEX(core_pwr_info[i].pa_5g[2], o + SSB_SROM8_5G_PA_2, ~0, 0);
SPEX(core_pwr_info[i].pa_5gh[0], o + SSB_SROM8_5GH_PA_0, ~0, 0);
SPEX(core_pwr_info[i].pa_5gh[1], o + SSB_SROM8_5GH_PA_1, ~0, 0);
SPEX(core_pwr_info[i].pa_5gh[2], o + SSB_SROM8_5GH_PA_2, ~0, 0);
}
SPEX(fem.ghz2.tssipos, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TSSIPOS,
SSB_SROM8_FEM_TSSIPOS_SHIFT);
SPEX(fem.ghz2.extpa_gain, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_EXTPA_GAIN,
SSB_SROM8_FEM_EXTPA_GAIN_SHIFT);
SPEX(fem.ghz2.pdet_range, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_PDET_RANGE,
SSB_SROM8_FEM_PDET_RANGE_SHIFT);
SPEX(fem.ghz2.tr_iso, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TR_ISO,
SSB_SROM8_FEM_TR_ISO_SHIFT);
SPEX(fem.ghz2.antswlut, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_ANTSWLUT,
SSB_SROM8_FEM_ANTSWLUT_SHIFT);
SPEX(fem.ghz5.tssipos, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TSSIPOS,
SSB_SROM8_FEM_TSSIPOS_SHIFT);
SPEX(fem.ghz5.extpa_gain, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_EXTPA_GAIN,
SSB_SROM8_FEM_EXTPA_GAIN_SHIFT);
SPEX(fem.ghz5.pdet_range, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_PDET_RANGE,
SSB_SROM8_FEM_PDET_RANGE_SHIFT);
SPEX(fem.ghz5.tr_iso, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TR_ISO,
SSB_SROM8_FEM_TR_ISO_SHIFT);
SPEX(fem.ghz5.antswlut, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_ANTSWLUT,
SSB_SROM8_FEM_ANTSWLUT_SHIFT);
SPEX(ant_available_a, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_A,
SSB_SPROM8_ANTAVAIL_A_SHIFT);
SPEX(ant_available_bg, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_BG,
SSB_SPROM8_ANTAVAIL_BG_SHIFT);
SPEX(maxpwr_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_MAXP_BG_MASK, 0);
SPEX(itssi_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_ITSSI_BG,
SSB_SPROM8_ITSSI_BG_SHIFT);
SPEX(maxpwr_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_MAXP_A_MASK, 0);
SPEX(itssi_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_ITSSI_A,
SSB_SPROM8_ITSSI_A_SHIFT);
SPEX(maxpwr_ah, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AH_MASK, 0);
SPEX(maxpwr_al, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AL_MASK,
SSB_SPROM8_MAXP_AL_SHIFT);
SPEX(gpio0, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P0, 0);
SPEX(gpio1, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P1,
SSB_SPROM8_GPIOA_P1_SHIFT);
SPEX(gpio2, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P2, 0);
SPEX(gpio3, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P3,
SSB_SPROM8_GPIOB_P3_SHIFT);
SPEX(tri2g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI2G, 0);
SPEX(tri5g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI5G,
SSB_SPROM8_TRI5G_SHIFT);
SPEX(tri5gl, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GL, 0);
SPEX(tri5gh, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GH,
SSB_SPROM8_TRI5GH_SHIFT);
SPEX(rxpo2g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO2G,
SSB_SPROM8_RXPO2G_SHIFT);
SPEX(rxpo5g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO5G,
SSB_SPROM8_RXPO5G_SHIFT);
SPEX(rssismf2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMF2G, 0);
SPEX(rssismc2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMC2G,
SSB_SPROM8_RSSISMC2G_SHIFT);
SPEX(rssisav2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISAV2G,
SSB_SPROM8_RSSISAV2G_SHIFT);
SPEX(bxa2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_BXA2G,
SSB_SPROM8_BXA2G_SHIFT);
SPEX(rssismf5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMF5G, 0);
SPEX(rssismc5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMC5G,
SSB_SPROM8_RSSISMC5G_SHIFT);
SPEX(rssisav5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISAV5G,
SSB_SPROM8_RSSISAV5G_SHIFT);
SPEX(bxa5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_BXA5G,
SSB_SPROM8_BXA5G_SHIFT);
SPEX(pa0b0, SSB_SPROM8_PA0B0, ~0, 0);
SPEX(pa0b1, SSB_SPROM8_PA0B1, ~0, 0);
SPEX(pa0b2, SSB_SPROM8_PA0B2, ~0, 0);
SPEX(pa1b0, SSB_SPROM8_PA1B0, ~0, 0);
SPEX(pa1b1, SSB_SPROM8_PA1B1, ~0, 0);
SPEX(pa1b2, SSB_SPROM8_PA1B2, ~0, 0);
SPEX(pa1lob0, SSB_SPROM8_PA1LOB0, ~0, 0);
SPEX(pa1lob1, SSB_SPROM8_PA1LOB1, ~0, 0);
SPEX(pa1lob2, SSB_SPROM8_PA1LOB2, ~0, 0);
SPEX(pa1hib0, SSB_SPROM8_PA1HIB0, ~0, 0);
SPEX(pa1hib1, SSB_SPROM8_PA1HIB1, ~0, 0);
SPEX(pa1hib2, SSB_SPROM8_PA1HIB2, ~0, 0);
SPEX(cck2gpo, SSB_SPROM8_CCK2GPO, ~0, 0);
SPEX32(ofdm2gpo, SSB_SPROM8_OFDM2GPO, ~0, 0);
SPEX32(ofdm5glpo, SSB_SPROM8_OFDM5GLPO, ~0, 0);
SPEX32(ofdm5gpo, SSB_SPROM8_OFDM5GPO, ~0, 0);
SPEX32(ofdm5ghpo, SSB_SPROM8_OFDM5GHPO, ~0, 0);
/* Extract the antenna gain values. */
out->antenna_gain.a0 = sprom_extract_antgain(in,
SSB_SPROM8_AGAIN01,
SSB_SPROM8_AGAIN0,
SSB_SPROM8_AGAIN0_SHIFT);
out->antenna_gain.a1 = sprom_extract_antgain(in,
SSB_SPROM8_AGAIN01,
SSB_SPROM8_AGAIN1,
SSB_SPROM8_AGAIN1_SHIFT);
out->antenna_gain.a2 = sprom_extract_antgain(in,
SSB_SPROM8_AGAIN23,
SSB_SPROM8_AGAIN2,
SSB_SPROM8_AGAIN2_SHIFT);
out->antenna_gain.a3 = sprom_extract_antgain(in,
SSB_SPROM8_AGAIN23,
SSB_SPROM8_AGAIN3,
SSB_SPROM8_AGAIN3_SHIFT);
SPEX(leddc_on_time, SSB_SPROM8_LEDDC, SSB_SPROM8_LEDDC_ON,
SSB_SPROM8_LEDDC_ON_SHIFT);
SPEX(leddc_off_time, SSB_SPROM8_LEDDC, SSB_SPROM8_LEDDC_OFF,
SSB_SPROM8_LEDDC_OFF_SHIFT);
SPEX(txchain, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_TXCHAIN,
SSB_SPROM8_TXRXC_TXCHAIN_SHIFT);
SPEX(rxchain, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_RXCHAIN,
SSB_SPROM8_TXRXC_RXCHAIN_SHIFT);
SPEX(antswitch, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_SWITCH,
SSB_SPROM8_TXRXC_SWITCH_SHIFT);
SPEX(opo, SSB_SPROM8_OFDM2GPO, 0x00ff, 0);
SPEX_ARRAY8(mcs2gpo, SSB_SPROM8_2G_MCSPO, ~0, 0);
SPEX_ARRAY8(mcs5gpo, SSB_SPROM8_5G_MCSPO, ~0, 0);
SPEX_ARRAY8(mcs5glpo, SSB_SPROM8_5GL_MCSPO, ~0, 0);
SPEX_ARRAY8(mcs5ghpo, SSB_SPROM8_5GH_MCSPO, ~0, 0);
SPEX(rawtempsense, SSB_SPROM8_RAWTS, SSB_SPROM8_RAWTS_RAWTEMP,
SSB_SPROM8_RAWTS_RAWTEMP_SHIFT);
SPEX(measpower, SSB_SPROM8_RAWTS, SSB_SPROM8_RAWTS_MEASPOWER,
SSB_SPROM8_RAWTS_MEASPOWER_SHIFT);
SPEX(tempsense_slope, SSB_SPROM8_OPT_CORRX,
SSB_SPROM8_OPT_CORRX_TEMP_SLOPE,
SSB_SPROM8_OPT_CORRX_TEMP_SLOPE_SHIFT);
SPEX(tempcorrx, SSB_SPROM8_OPT_CORRX, SSB_SPROM8_OPT_CORRX_TEMPCORRX,
SSB_SPROM8_OPT_CORRX_TEMPCORRX_SHIFT);
SPEX(tempsense_option, SSB_SPROM8_OPT_CORRX,
SSB_SPROM8_OPT_CORRX_TEMP_OPTION,
SSB_SPROM8_OPT_CORRX_TEMP_OPTION_SHIFT);
SPEX(freqoffset_corr, SSB_SPROM8_HWIQ_IQSWP,
SSB_SPROM8_HWIQ_IQSWP_FREQ_CORR,
SSB_SPROM8_HWIQ_IQSWP_FREQ_CORR_SHIFT);
SPEX(iqcal_swp_dis, SSB_SPROM8_HWIQ_IQSWP,
SSB_SPROM8_HWIQ_IQSWP_IQCAL_SWP,
SSB_SPROM8_HWIQ_IQSWP_IQCAL_SWP_SHIFT);
SPEX(hw_iqcal_en, SSB_SPROM8_HWIQ_IQSWP, SSB_SPROM8_HWIQ_IQSWP_HW_IQCAL,
SSB_SPROM8_HWIQ_IQSWP_HW_IQCAL_SHIFT);
SPEX(bw40po, SSB_SPROM8_BW40PO, ~0, 0);
SPEX(cddpo, SSB_SPROM8_CDDPO, ~0, 0);
SPEX(stbcpo, SSB_SPROM8_STBCPO, ~0, 0);
SPEX(bwduppo, SSB_SPROM8_BWDUPPO, ~0, 0);
SPEX(tempthresh, SSB_SPROM8_THERMAL, SSB_SPROM8_THERMAL_TRESH,
SSB_SPROM8_THERMAL_TRESH_SHIFT);
SPEX(tempoffset, SSB_SPROM8_THERMAL, SSB_SPROM8_THERMAL_OFFSET,
SSB_SPROM8_THERMAL_OFFSET_SHIFT);
SPEX(phycal_tempdelta, SSB_SPROM8_TEMPDELTA,
SSB_SPROM8_TEMPDELTA_PHYCAL,
SSB_SPROM8_TEMPDELTA_PHYCAL_SHIFT);
SPEX(temps_period, SSB_SPROM8_TEMPDELTA, SSB_SPROM8_TEMPDELTA_PERIOD,
SSB_SPROM8_TEMPDELTA_PERIOD_SHIFT);
SPEX(temps_hysteresis, SSB_SPROM8_TEMPDELTA,
SSB_SPROM8_TEMPDELTA_HYSTERESIS,
SSB_SPROM8_TEMPDELTA_HYSTERESIS_SHIFT);
}
static int sprom_extract(struct bcma_fbs *priv, const u16 *in, u16 size)
{
struct ssb_sprom *out = &priv->sprom;
memset(out, 0, sizeof(*out));
out->revision = in[size - 1] & 0x00FF;
if (out->revision < 8 || out->revision > 11) {
dev_warn(priv->dev,
"Unsupported SPROM revision %d detected."
" Will extract v8\n",
out->revision);
out->revision = 8;
}
sprom_extract_r8(out, in);
return 0;
}
static void bcma_fbs_fixup(struct bcma_fbs *priv, u16 *sprom)
{
struct device_node *node = priv->dev->of_node;
u32 fixups, off, val;
int i = 0;
if (!of_get_property(node, "brcm,sprom-fixups", &fixups))
return;
fixups /= sizeof(u32);
dev_info(priv->dev, "patching SPROM with %u fixups...\n", fixups >> 1);
while (i < fixups) {
if (of_property_read_u32_index(node, "brcm,sprom-fixups",
i++, &off)) {
dev_err(priv->dev, "error reading fixup[%u] offset\n",
i - 1);
return;
}
if (of_property_read_u32_index(node, "brcm,sprom-fixups",
i++, &val)) {
dev_err(priv->dev, "error reading fixup[%u] value\n",
i - 1);
return;
}
dev_dbg(priv->dev, "fixup[%d]=0x%04x\n", off, val);
sprom[off] = val;
}
}
static bool sprom_override_devid(struct bcma_fbs *priv, struct ssb_sprom *out,
const u16 *in)
{
SPEX(dev_id, 0x0060, 0xFFFF, 0);
return !!out->dev_id;
}
static void bcma_fbs_set(struct bcma_fbs *priv, struct device_node *node)
{
struct ssb_sprom *sprom = &priv->sprom;
const struct firmware *fw;
const char *sprom_name;
int err;
if (of_property_read_string(node, "brcm,sprom", &sprom_name))
sprom_name = NULL;
if (sprom_name) {
err = request_firmware_direct(&fw, sprom_name, priv->dev);
if (err)
dev_err(priv->dev, "%s load error\n", sprom_name);
} else {
err = -ENOENT;
}
if (err) {
sprom->revision = 0x02;
sprom->board_rev = 0x0017;
sprom->country_code = 0x00;
sprom->ant_available_bg = 0x03;
sprom->pa0b0 = 0x15ae;
sprom->pa0b1 = 0xfa85;
sprom->pa0b2 = 0xfe8d;
sprom->pa1b0 = 0xffff;
sprom->pa1b1 = 0xffff;
sprom->pa1b2 = 0xffff;
sprom->gpio0 = 0xff;
sprom->gpio1 = 0xff;
sprom->gpio2 = 0xff;
sprom->gpio3 = 0xff;
sprom->maxpwr_bg = 0x4c;
sprom->itssi_bg = 0x00;
sprom->boardflags_lo = 0x2848;
sprom->boardflags_hi = 0x0000;
priv->devid_override = false;
dev_warn(priv->dev, "using basic SPROM\n");
} else {
size_t size = min(fw->size, (size_t) BCMA_FBS_MAX_SIZE);
u16 tmp_sprom[BCMA_FBS_MAX_SIZE >> 1];
u32 i, j;
for (i = 0, j = 0; i < size; i += 2, j++)
tmp_sprom[j] = (fw->data[i] << 8) | fw->data[i + 1];
release_firmware(fw);
bcma_fbs_fixup(priv, tmp_sprom);
sprom_extract(priv, tmp_sprom, size >> 1);
priv->devid_override = sprom_override_devid(priv, sprom,
tmp_sprom);
}
}
static int bcma_fbs_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node;
struct bcma_fbs *priv;
unsigned long flags;
u8 mac[ETH_ALEN];
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->dev = dev;
bcma_fbs_set(priv, node);
of_property_read_u32(node, "pci-bus", &priv->pci_bus);
of_property_read_u32(node, "pci-dev", &priv->pci_dev);
of_get_mac_address(node, mac);
if (is_valid_ether_addr(mac)) {
dev_info(dev, "mtd mac %pM\n", mac);
} else {
random_ether_addr(mac);
dev_info(dev, "random mac %pM\n", mac);
}
memcpy(priv->sprom.il0mac, mac, ETH_ALEN);
memcpy(priv->sprom.et0mac, mac, ETH_ALEN);
memcpy(priv->sprom.et1mac, mac, ETH_ALEN);
memcpy(priv->sprom.et2mac, mac, ETH_ALEN);
spin_lock_irqsave(&bcma_fbs_lock, flags);
list_add(&priv->list, &bcma_fbs_list);
spin_unlock_irqrestore(&bcma_fbs_lock, flags);
dev_info(dev, "registered SPROM for [%x:%x]\n",
priv->pci_bus, priv->pci_dev);
return 0;
}
static const struct of_device_id bcma_fbs_of_match[] = {
{ .compatible = "brcm,bcma-sprom", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, bcma_fbs_of_match);
static struct platform_driver bcma_fbs_driver = {
.probe = bcma_fbs_probe,
.driver = {
.name = "bcma-sprom",
.of_match_table = bcma_fbs_of_match,
},
};
int __init bcma_fbs_register(void)
{
return platform_driver_register(&bcma_fbs_driver);
}
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