| /* |
| * Copyright (c) 2010 Broadcom Corporation |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include <linux/delay.h> |
| #include <linux/kernel.h> |
| #include <linux/string.h> |
| #include <bcmdefs.h> |
| #include <linux/module.h> |
| #include <linux/pci.h> |
| #include <bcmutils.h> |
| #include <siutils.h> |
| #include <bcmdevs.h> |
| #include <hndsoc.h> |
| #include <sbchipc.h> |
| #include <pci_core.h> |
| #include <pcie_core.h> |
| #include <nicpci.h> |
| #include <bcmnvram.h> |
| #include <bcmsrom.h> |
| #include <pcicfg.h> |
| #include <sbsocram.h> |
| #ifdef BCMSDIO |
| #include <bcmsdh.h> |
| #include <sdio.h> |
| #include <sbsdio.h> |
| #include <sbhnddma.h> |
| #include <sbsdpcmdev.h> |
| #include <bcmsdpcm.h> |
| #endif /* BCMSDIO */ |
| #include <hndpmu.h> |
| |
| /* this file now contains only definitions for sb functions, only necessary |
| *for devices using Sonics backplanes (bcm4329) |
| */ |
| |
| /* if an amba SDIO device is supported, please further restrict the inclusion |
| * of this file |
| */ |
| #ifdef BCMSDIO |
| #include "siutils_priv.h" |
| #endif |
| |
| /* local prototypes */ |
| static si_info_t *si_doattach(si_info_t *sii, uint devid, void *regs, |
| uint bustype, void *sdh, char **vars, |
| uint *varsz); |
| static bool si_buscore_prep(si_info_t *sii, uint bustype, uint devid, |
| void *sdh); |
| static bool si_buscore_setup(si_info_t *sii, chipcregs_t *cc, uint bustype, |
| u32 savewin, uint *origidx, void *regs); |
| static void si_nvram_process(si_info_t *sii, char *pvars); |
| |
| /* dev path concatenation util */ |
| static char *si_devpathvar(si_t *sih, char *var, int len, const char *name); |
| static bool _si_clkctl_cc(si_info_t *sii, uint mode); |
| static bool si_ispcie(si_info_t *sii); |
| static uint socram_banksize(si_info_t *sii, sbsocramregs_t *r, |
| u8 idx, u8 mtype); |
| |
| /* global variable to indicate reservation/release of gpio's */ |
| static u32 si_gpioreservation; |
| |
| /* |
| * Allocate a si handle. |
| * devid - pci device id (used to determine chip#) |
| * osh - opaque OS handle |
| * regs - virtual address of initial core registers |
| * bustype - pci/sb/sdio/etc |
| * vars - pointer to a pointer area for "environment" variables |
| * varsz - pointer to int to return the size of the vars |
| */ |
| si_t *si_attach(uint devid, void *regs, uint bustype, |
| void *sdh, char **vars, uint *varsz) |
| { |
| si_info_t *sii; |
| |
| /* alloc si_info_t */ |
| sii = kmalloc(sizeof(si_info_t), GFP_ATOMIC); |
| if (sii == NULL) { |
| SI_ERROR(("si_attach: malloc failed!\n")); |
| return NULL; |
| } |
| |
| if (si_doattach(sii, devid, regs, bustype, sdh, vars, varsz) == |
| NULL) { |
| kfree(sii); |
| return NULL; |
| } |
| sii->vars = vars ? *vars : NULL; |
| sii->varsz = varsz ? *varsz : 0; |
| |
| return (si_t *) sii; |
| } |
| |
| /* global kernel resource */ |
| static si_info_t ksii; |
| |
| static bool si_buscore_prep(si_info_t *sii, uint bustype, uint devid, |
| void *sdh) |
| { |
| |
| #ifndef BRCM_FULLMAC |
| /* kludge to enable the clock on the 4306 which lacks a slowclock */ |
| if (bustype == PCI_BUS && !si_ispcie(sii)) |
| si_clkctl_xtal(&sii->pub, XTAL | PLL, ON); |
| #endif |
| |
| #if defined(BCMSDIO) |
| if (bustype == SDIO_BUS) { |
| int err; |
| u8 clkset; |
| |
| /* Try forcing SDIO core to do ALPAvail request only */ |
| clkset = SBSDIO_FORCE_HW_CLKREQ_OFF | SBSDIO_ALP_AVAIL_REQ; |
| bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, |
| clkset, &err); |
| if (!err) { |
| u8 clkval; |
| |
| /* If register supported, wait for ALPAvail and then force ALP */ |
| clkval = |
| bcmsdh_cfg_read(sdh, SDIO_FUNC_1, |
| SBSDIO_FUNC1_CHIPCLKCSR, NULL); |
| if ((clkval & ~SBSDIO_AVBITS) == clkset) { |
| SPINWAIT(((clkval = |
| bcmsdh_cfg_read(sdh, SDIO_FUNC_1, |
| SBSDIO_FUNC1_CHIPCLKCSR, |
| NULL)), |
| !SBSDIO_ALPAV(clkval)), |
| PMU_MAX_TRANSITION_DLY); |
| if (!SBSDIO_ALPAV(clkval)) { |
| SI_ERROR(("timeout on ALPAV wait, clkval 0x%02x\n", clkval)); |
| return false; |
| } |
| clkset = |
| SBSDIO_FORCE_HW_CLKREQ_OFF | |
| SBSDIO_FORCE_ALP; |
| bcmsdh_cfg_write(sdh, SDIO_FUNC_1, |
| SBSDIO_FUNC1_CHIPCLKCSR, |
| clkset, &err); |
| udelay(65); |
| } |
| } |
| |
| /* Also, disable the extra SDIO pull-ups */ |
| bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_SDIOPULLUP, 0, |
| NULL); |
| } |
| #endif /* defined(BCMSDIO) */ |
| |
| return true; |
| } |
| |
| static bool si_buscore_setup(si_info_t *sii, chipcregs_t *cc, uint bustype, |
| u32 savewin, uint *origidx, void *regs) |
| { |
| bool pci, pcie; |
| uint i; |
| uint pciidx, pcieidx, pcirev, pcierev; |
| |
| cc = si_setcoreidx(&sii->pub, SI_CC_IDX); |
| ASSERT(cc); |
| |
| /* get chipcommon rev */ |
| sii->pub.ccrev = (int)si_corerev(&sii->pub); |
| |
| /* get chipcommon chipstatus */ |
| if (sii->pub.ccrev >= 11) |
| sii->pub.chipst = R_REG(&cc->chipstatus); |
| |
| /* get chipcommon capabilites */ |
| sii->pub.cccaps = R_REG(&cc->capabilities); |
| /* get chipcommon extended capabilities */ |
| |
| #ifndef BRCM_FULLMAC |
| if (sii->pub.ccrev >= 35) |
| sii->pub.cccaps_ext = R_REG(&cc->capabilities_ext); |
| #endif |
| /* get pmu rev and caps */ |
| if (sii->pub.cccaps & CC_CAP_PMU) { |
| sii->pub.pmucaps = R_REG(&cc->pmucapabilities); |
| sii->pub.pmurev = sii->pub.pmucaps & PCAP_REV_MASK; |
| } |
| |
| /* |
| SI_MSG(("Chipc: rev %d, caps 0x%x, chipst 0x%x pmurev %d, pmucaps 0x%x\n", |
| sii->pub.ccrev, sii->pub.cccaps, sii->pub.chipst, sii->pub.pmurev, |
| sii->pub.pmucaps)); |
| */ |
| |
| /* figure out bus/orignal core idx */ |
| sii->pub.buscoretype = NODEV_CORE_ID; |
| sii->pub.buscorerev = NOREV; |
| sii->pub.buscoreidx = BADIDX; |
| |
| pci = pcie = false; |
| pcirev = pcierev = NOREV; |
| pciidx = pcieidx = BADIDX; |
| |
| for (i = 0; i < sii->numcores; i++) { |
| uint cid, crev; |
| |
| si_setcoreidx(&sii->pub, i); |
| cid = si_coreid(&sii->pub); |
| crev = si_corerev(&sii->pub); |
| |
| /* Display cores found */ |
| SI_VMSG(("CORE[%d]: id 0x%x rev %d base 0x%x regs 0x%p\n", |
| i, cid, crev, sii->coresba[i], sii->regs[i])); |
| |
| if (bustype == PCI_BUS) { |
| if (cid == PCI_CORE_ID) { |
| pciidx = i; |
| pcirev = crev; |
| pci = true; |
| } else if (cid == PCIE_CORE_ID) { |
| pcieidx = i; |
| pcierev = crev; |
| pcie = true; |
| } |
| } |
| #ifdef BCMSDIO |
| else if (((bustype == SDIO_BUS) || |
| (bustype == SPI_BUS)) && |
| ((cid == PCMCIA_CORE_ID) || (cid == SDIOD_CORE_ID))) { |
| sii->pub.buscorerev = crev; |
| sii->pub.buscoretype = cid; |
| sii->pub.buscoreidx = i; |
| } |
| #endif /* BCMSDIO */ |
| |
| /* find the core idx before entering this func. */ |
| if ((savewin && (savewin == sii->coresba[i])) || |
| (regs == sii->regs[i])) |
| *origidx = i; |
| } |
| |
| #ifdef BRCM_FULLMAC |
| SI_MSG(("Buscore id/type/rev %d/0x%x/%d\n", sii->pub.buscoreidx, |
| sii->pub.buscoretype, sii->pub.buscorerev)); |
| |
| /* Make sure any on-chip ARM is off (in case strapping is wrong), |
| * or downloaded code was |
| * already running. |
| */ |
| if ((bustype == SDIO_BUS) || (bustype == SPI_BUS)) { |
| if (si_setcore(&sii->pub, ARM7S_CORE_ID, 0) || |
| si_setcore(&sii->pub, ARMCM3_CORE_ID, 0)) |
| si_core_disable(&sii->pub, 0); |
| } |
| #else |
| if (pci && pcie) { |
| if (si_ispcie(sii)) |
| pci = false; |
| else |
| pcie = false; |
| } |
| if (pci) { |
| sii->pub.buscoretype = PCI_CORE_ID; |
| sii->pub.buscorerev = pcirev; |
| sii->pub.buscoreidx = pciidx; |
| } else if (pcie) { |
| sii->pub.buscoretype = PCIE_CORE_ID; |
| sii->pub.buscorerev = pcierev; |
| sii->pub.buscoreidx = pcieidx; |
| } |
| |
| SI_VMSG(("Buscore id/type/rev %d/0x%x/%d\n", sii->pub.buscoreidx, |
| sii->pub.buscoretype, sii->pub.buscorerev)); |
| |
| /* fixup necessary chip/core configurations */ |
| if (sii->pub.bustype == PCI_BUS) { |
| if (SI_FAST(sii)) { |
| if (!sii->pch) { |
| sii->pch = (void *)pcicore_init( |
| &sii->pub, sii->pbus, |
| (void *)PCIEREGS(sii)); |
| if (sii->pch == NULL) |
| return false; |
| } |
| } |
| if (si_pci_fixcfg(&sii->pub)) { |
| SI_ERROR(("si_doattach: sb_pci_fixcfg failed\n")); |
| return false; |
| } |
| } |
| #endif |
| /* return to the original core */ |
| si_setcoreidx(&sii->pub, *origidx); |
| |
| return true; |
| } |
| |
| static __used void si_nvram_process(si_info_t *sii, char *pvars) |
| { |
| uint w = 0; |
| |
| /* get boardtype and boardrev */ |
| switch (sii->pub.bustype) { |
| case PCI_BUS: |
| /* do a pci config read to get subsystem id and subvendor id */ |
| pci_read_config_dword(sii->pbus, PCI_CFG_SVID, &w); |
| /* Let nvram variables override subsystem Vend/ID */ |
| sii->pub.boardvendor = (u16)si_getdevpathintvar(&sii->pub, |
| "boardvendor"); |
| if (sii->pub.boardvendor == 0) |
| sii->pub.boardvendor = w & 0xffff; |
| else |
| SI_ERROR(("Overriding boardvendor: 0x%x instead of 0x%x\n", sii->pub.boardvendor, w & 0xffff)); |
| sii->pub.boardtype = (u16)si_getdevpathintvar(&sii->pub, |
| "boardtype"); |
| if (sii->pub.boardtype == 0) |
| sii->pub.boardtype = (w >> 16) & 0xffff; |
| else |
| SI_ERROR(("Overriding boardtype: 0x%x instead of 0x%x\n", sii->pub.boardtype, (w >> 16) & 0xffff)); |
| break; |
| |
| #ifdef BCMSDIO |
| case SDIO_BUS: |
| #endif |
| sii->pub.boardvendor = getintvar(pvars, "manfid"); |
| sii->pub.boardtype = getintvar(pvars, "prodid"); |
| break; |
| |
| #ifdef BCMSDIO |
| case SPI_BUS: |
| sii->pub.boardvendor = VENDOR_BROADCOM; |
| sii->pub.boardtype = SPI_BOARD; |
| break; |
| #endif |
| |
| case SI_BUS: |
| case JTAG_BUS: |
| sii->pub.boardvendor = VENDOR_BROADCOM; |
| sii->pub.boardtype = getintvar(pvars, "prodid"); |
| if (pvars == NULL || (sii->pub.boardtype == 0)) { |
| sii->pub.boardtype = getintvar(NULL, "boardtype"); |
| if (sii->pub.boardtype == 0) |
| sii->pub.boardtype = 0xffff; |
| } |
| break; |
| } |
| |
| if (sii->pub.boardtype == 0) { |
| SI_ERROR(("si_doattach: unknown board type\n")); |
| ASSERT(sii->pub.boardtype); |
| } |
| |
| sii->pub.boardflags = getintvar(pvars, "boardflags"); |
| } |
| |
| /* this is will make Sonics calls directly, since Sonics is no longer supported in the Si abstraction */ |
| /* this has been customized for the bcm 4329 ONLY */ |
| #ifdef BCMSDIO |
| static si_info_t *si_doattach(si_info_t *sii, uint devid, |
| void *regs, uint bustype, void *pbus, |
| char **vars, uint *varsz) |
| { |
| struct si_pub *sih = &sii->pub; |
| u32 w, savewin; |
| chipcregs_t *cc; |
| char *pvars = NULL; |
| uint origidx; |
| |
| ASSERT(GOODREGS(regs)); |
| |
| memset((unsigned char *) sii, 0, sizeof(si_info_t)); |
| |
| savewin = 0; |
| |
| sih->buscoreidx = BADIDX; |
| |
| sii->curmap = regs; |
| sii->pbus = pbus; |
| |
| /* find Chipcommon address */ |
| cc = (chipcregs_t *) sii->curmap; |
| sih->bustype = bustype; |
| |
| /* bus/core/clk setup for register access */ |
| if (!si_buscore_prep(sii, bustype, devid, pbus)) { |
| SI_ERROR(("si_doattach: si_core_clk_prep failed %d\n", |
| bustype)); |
| return NULL; |
| } |
| |
| /* ChipID recognition. |
| * We assume we can read chipid at offset 0 from the regs arg. |
| * If we add other chiptypes (or if we need to support old sdio hosts w/o chipcommon), |
| * some way of recognizing them needs to be added here. |
| */ |
| w = R_REG(&cc->chipid); |
| sih->socitype = (w & CID_TYPE_MASK) >> CID_TYPE_SHIFT; |
| /* Might as wll fill in chip id rev & pkg */ |
| sih->chip = w & CID_ID_MASK; |
| sih->chiprev = (w & CID_REV_MASK) >> CID_REV_SHIFT; |
| sih->chippkg = (w & CID_PKG_MASK) >> CID_PKG_SHIFT; |
| |
| if ((sih->chip == BCM4329_CHIP_ID) && |
| (sih->chippkg != BCM4329_289PIN_PKG_ID)) |
| sih->chippkg = BCM4329_182PIN_PKG_ID; |
| |
| sih->issim = IS_SIM(sih->chippkg); |
| |
| /* scan for cores */ |
| /* SI_MSG(("Found chip type SB (0x%08x)\n", w)); */ |
| sb_scan(&sii->pub, regs, devid); |
| |
| /* no cores found, bail out */ |
| if (sii->numcores == 0) { |
| SI_ERROR(("si_doattach: could not find any cores\n")); |
| return NULL; |
| } |
| /* bus/core/clk setup */ |
| origidx = SI_CC_IDX; |
| if (!si_buscore_setup(sii, cc, bustype, savewin, &origidx, regs)) { |
| SI_ERROR(("si_doattach: si_buscore_setup failed\n")); |
| goto exit; |
| } |
| |
| #ifdef BRCM_FULLMAC |
| pvars = NULL; |
| #else |
| /* Init nvram from flash if it exists */ |
| nvram_init((void *)&(sii->pub)); |
| |
| /* Init nvram from sprom/otp if they exist */ |
| if (srom_var_init |
| (&sii->pub, bustype, regs, sii->osh, vars, varsz)) { |
| SI_ERROR(("si_doattach: srom_var_init failed: bad srom\n")); |
| goto exit; |
| } |
| pvars = vars ? *vars : NULL; |
| si_nvram_process(sii, pvars); |
| #endif |
| |
| /* === NVRAM, clock is ready === */ |
| |
| #ifdef BRCM_FULLMAC |
| if (sii->pub.ccrev >= 20) { |
| #endif |
| cc = (chipcregs_t *) si_setcore(sih, CC_CORE_ID, 0); |
| W_REG(&cc->gpiopullup, 0); |
| W_REG(&cc->gpiopulldown, 0); |
| sb_setcoreidx(sih, origidx); |
| #ifdef BRCM_FULLMAC |
| } |
| #endif |
| |
| #ifndef BRCM_FULLMAC |
| /* PMU specific initializations */ |
| if (PMUCTL_ENAB(sih)) { |
| u32 xtalfreq; |
| si_pmu_init(sih); |
| si_pmu_chip_init(sih); |
| xtalfreq = getintvar(pvars, "xtalfreq"); |
| /* If xtalfreq var not available, try to measure it */ |
| if (xtalfreq == 0) |
| xtalfreq = si_pmu_measure_alpclk(sih); |
| si_pmu_pll_init(sih, xtalfreq); |
| si_pmu_res_init(sih); |
| si_pmu_swreg_init(sih); |
| } |
| |
| /* setup the GPIO based LED powersave register */ |
| w = getintvar(pvars, "leddc"); |
| if (w == 0) |
| w = DEFAULT_GPIOTIMERVAL; |
| sb_corereg(sih, SI_CC_IDX, offsetof(chipcregs_t, gpiotimerval), ~0, w); |
| |
| #ifdef BCMDBG |
| /* clear any previous epidiag-induced target abort */ |
| sb_taclear(sih, false); |
| #endif /* BCMDBG */ |
| #endif |
| |
| return sii; |
| |
| exit: |
| return NULL; |
| } |
| |
| #else /* BCMSDIO */ |
| static si_info_t *si_doattach(si_info_t *sii, uint devid, |
| void *regs, uint bustype, void *pbus, |
| char **vars, uint *varsz) |
| { |
| struct si_pub *sih = &sii->pub; |
| u32 w, savewin; |
| chipcregs_t *cc; |
| char *pvars = NULL; |
| uint origidx; |
| |
| ASSERT(GOODREGS(regs)); |
| |
| memset((unsigned char *) sii, 0, sizeof(si_info_t)); |
| |
| savewin = 0; |
| |
| sih->buscoreidx = BADIDX; |
| |
| sii->curmap = regs; |
| sii->pbus = pbus; |
| |
| /* check to see if we are a si core mimic'ing a pci core */ |
| if (bustype == PCI_BUS) { |
| pci_read_config_dword(sii->pbus, PCI_SPROM_CONTROL, &w); |
| if (w == 0xffffffff) { |
| SI_ERROR(("%s: incoming bus is PCI but it's a lie, " |
| " switching to SI devid:0x%x\n", |
| __func__, devid)); |
| bustype = SI_BUS; |
| } |
| } |
| |
| /* find Chipcommon address */ |
| if (bustype == PCI_BUS) { |
| pci_read_config_dword(sii->pbus, PCI_BAR0_WIN, &savewin); |
| if (!GOODCOREADDR(savewin, SI_ENUM_BASE)) |
| savewin = SI_ENUM_BASE; |
| pci_write_config_dword(sii->pbus, PCI_BAR0_WIN, |
| SI_ENUM_BASE); |
| cc = (chipcregs_t *) regs; |
| } else { |
| cc = (chipcregs_t *) REG_MAP(SI_ENUM_BASE, SI_CORE_SIZE); |
| } |
| |
| sih->bustype = bustype; |
| |
| /* bus/core/clk setup for register access */ |
| if (!si_buscore_prep(sii, bustype, devid, pbus)) { |
| SI_ERROR(("si_doattach: si_core_clk_prep failed %d\n", |
| bustype)); |
| return NULL; |
| } |
| |
| /* ChipID recognition. |
| * We assume we can read chipid at offset 0 from the regs arg. |
| * If we add other chiptypes (or if we need to support old sdio hosts w/o chipcommon), |
| * some way of recognizing them needs to be added here. |
| */ |
| w = R_REG(&cc->chipid); |
| sih->socitype = (w & CID_TYPE_MASK) >> CID_TYPE_SHIFT; |
| /* Might as wll fill in chip id rev & pkg */ |
| sih->chip = w & CID_ID_MASK; |
| sih->chiprev = (w & CID_REV_MASK) >> CID_REV_SHIFT; |
| sih->chippkg = (w & CID_PKG_MASK) >> CID_PKG_SHIFT; |
| |
| sih->issim = IS_SIM(sih->chippkg); |
| |
| /* scan for cores */ |
| if (sii->pub.socitype == SOCI_AI) { |
| SI_MSG(("Found chip type AI (0x%08x)\n", w)); |
| /* pass chipc address instead of original core base */ |
| ai_scan(&sii->pub, (void *)cc, devid); |
| } else { |
| SI_ERROR(("Found chip of unknown type (0x%08x)\n", w)); |
| return NULL; |
| } |
| /* no cores found, bail out */ |
| if (sii->numcores == 0) { |
| SI_ERROR(("si_doattach: could not find any cores\n")); |
| return NULL; |
| } |
| /* bus/core/clk setup */ |
| origidx = SI_CC_IDX; |
| if (!si_buscore_setup(sii, cc, bustype, savewin, &origidx, regs)) { |
| SI_ERROR(("si_doattach: si_buscore_setup failed\n")); |
| goto exit; |
| } |
| |
| /* assume current core is CC */ |
| if ((sii->pub.ccrev == 0x25) |
| && |
| ((sih->chip == BCM43236_CHIP_ID |
| || sih->chip == BCM43235_CHIP_ID |
| || sih->chip == BCM43238_CHIP_ID) |
| && (sii->pub.chiprev <= 2))) { |
| |
| if ((cc->chipstatus & CST43236_BP_CLK) != 0) { |
| uint clkdiv; |
| clkdiv = R_REG(&cc->clkdiv); |
| /* otp_clk_div is even number, 120/14 < 9mhz */ |
| clkdiv = (clkdiv & ~CLKD_OTP) | (14 << CLKD_OTP_SHIFT); |
| W_REG(&cc->clkdiv, clkdiv); |
| SI_ERROR(("%s: set clkdiv to %x\n", __func__, clkdiv)); |
| } |
| udelay(10); |
| } |
| |
| /* Init nvram from flash if it exists */ |
| nvram_init((void *)&(sii->pub)); |
| |
| /* Init nvram from sprom/otp if they exist */ |
| if (srom_var_init |
| (&sii->pub, bustype, regs, vars, varsz)) { |
| SI_ERROR(("si_doattach: srom_var_init failed: bad srom\n")); |
| goto exit; |
| } |
| pvars = vars ? *vars : NULL; |
| si_nvram_process(sii, pvars); |
| |
| /* === NVRAM, clock is ready === */ |
| cc = (chipcregs_t *) si_setcore(sih, CC_CORE_ID, 0); |
| W_REG(&cc->gpiopullup, 0); |
| W_REG(&cc->gpiopulldown, 0); |
| si_setcoreidx(sih, origidx); |
| |
| /* PMU specific initializations */ |
| if (PMUCTL_ENAB(sih)) { |
| u32 xtalfreq; |
| si_pmu_init(sih); |
| si_pmu_chip_init(sih); |
| xtalfreq = getintvar(pvars, "xtalfreq"); |
| /* If xtalfreq var not available, try to measure it */ |
| if (xtalfreq == 0) |
| xtalfreq = si_pmu_measure_alpclk(sih); |
| si_pmu_pll_init(sih, xtalfreq); |
| si_pmu_res_init(sih); |
| si_pmu_swreg_init(sih); |
| } |
| |
| /* setup the GPIO based LED powersave register */ |
| w = getintvar(pvars, "leddc"); |
| if (w == 0) |
| w = DEFAULT_GPIOTIMERVAL; |
| si_corereg(sih, SI_CC_IDX, offsetof(chipcregs_t, gpiotimerval), ~0, w); |
| |
| if (PCIE(sii)) { |
| ASSERT(sii->pch != NULL); |
| pcicore_attach(sii->pch, pvars, SI_DOATTACH); |
| } |
| |
| if ((sih->chip == BCM43224_CHIP_ID) || |
| (sih->chip == BCM43421_CHIP_ID)) { |
| /* enable 12 mA drive strenth for 43224 and set chipControl register bit 15 */ |
| if (sih->chiprev == 0) { |
| SI_MSG(("Applying 43224A0 WARs\n")); |
| si_corereg(sih, SI_CC_IDX, |
| offsetof(chipcregs_t, chipcontrol), |
| CCTRL43224_GPIO_TOGGLE, |
| CCTRL43224_GPIO_TOGGLE); |
| si_pmu_chipcontrol(sih, 0, CCTRL_43224A0_12MA_LED_DRIVE, |
| CCTRL_43224A0_12MA_LED_DRIVE); |
| } |
| if (sih->chiprev >= 1) { |
| SI_MSG(("Applying 43224B0+ WARs\n")); |
| si_pmu_chipcontrol(sih, 0, CCTRL_43224B0_12MA_LED_DRIVE, |
| CCTRL_43224B0_12MA_LED_DRIVE); |
| } |
| } |
| |
| if (sih->chip == BCM4313_CHIP_ID) { |
| /* enable 12 mA drive strenth for 4313 and set chipControl register bit 1 */ |
| SI_MSG(("Applying 4313 WARs\n")); |
| si_pmu_chipcontrol(sih, 0, CCTRL_4313_12MA_LED_DRIVE, |
| CCTRL_4313_12MA_LED_DRIVE); |
| } |
| |
| if (sih->chip == BCM4331_CHIP_ID) { |
| /* Enable Ext PA lines depending on chip package option */ |
| si_chipcontrl_epa4331(sih, true); |
| } |
| |
| return sii; |
| exit: |
| if (sih->bustype == PCI_BUS) { |
| if (sii->pch) |
| pcicore_deinit(sii->pch); |
| sii->pch = NULL; |
| } |
| |
| return NULL; |
| } |
| #endif /* BCMSDIO */ |
| |
| /* may be called with core in reset */ |
| void si_detach(si_t *sih) |
| { |
| si_info_t *sii; |
| uint idx; |
| |
| struct si_pub *si_local = NULL; |
| memcpy(&si_local, &sih, sizeof(si_t **)); |
| |
| sii = SI_INFO(sih); |
| |
| if (sii == NULL) |
| return; |
| |
| if (sih->bustype == SI_BUS) |
| for (idx = 0; idx < SI_MAXCORES; idx++) |
| if (sii->regs[idx]) { |
| iounmap(sii->regs[idx]); |
| sii->regs[idx] = NULL; |
| } |
| |
| #ifndef BRCM_FULLMAC |
| nvram_exit((void *)si_local); /* free up nvram buffers */ |
| |
| if (sih->bustype == PCI_BUS) { |
| if (sii->pch) |
| pcicore_deinit(sii->pch); |
| sii->pch = NULL; |
| } |
| #endif |
| #if !defined(BCMBUSTYPE) || (BCMBUSTYPE == SI_BUS) |
| if (sii != &ksii) |
| #endif /* !BCMBUSTYPE || (BCMBUSTYPE == SI_BUS) */ |
| kfree(sii); |
| } |
| |
| /* register driver interrupt disabling and restoring callback functions */ |
| void |
| si_register_intr_callback(si_t *sih, void *intrsoff_fn, void *intrsrestore_fn, |
| void *intrsenabled_fn, void *intr_arg) |
| { |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| sii->intr_arg = intr_arg; |
| sii->intrsoff_fn = (si_intrsoff_t) intrsoff_fn; |
| sii->intrsrestore_fn = (si_intrsrestore_t) intrsrestore_fn; |
| sii->intrsenabled_fn = (si_intrsenabled_t) intrsenabled_fn; |
| /* save current core id. when this function called, the current core |
| * must be the core which provides driver functions(il, et, wl, etc.) |
| */ |
| sii->dev_coreid = sii->coreid[sii->curidx]; |
| } |
| |
| void si_deregister_intr_callback(si_t *sih) |
| { |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| sii->intrsoff_fn = NULL; |
| } |
| |
| uint si_flag(si_t *sih) |
| { |
| if (sih->socitype == SOCI_AI) |
| return ai_flag(sih); |
| else { |
| ASSERT(0); |
| return 0; |
| } |
| } |
| |
| void si_setint(si_t *sih, int siflag) |
| { |
| if (sih->socitype == SOCI_AI) |
| ai_setint(sih, siflag); |
| else |
| ASSERT(0); |
| } |
| |
| #ifndef BCMSDIO |
| uint si_coreid(si_t *sih) |
| { |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| return sii->coreid[sii->curidx]; |
| } |
| #endif |
| |
| uint si_coreidx(si_t *sih) |
| { |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| return sii->curidx; |
| } |
| |
| bool si_backplane64(si_t *sih) |
| { |
| return (sih->cccaps & CC_CAP_BKPLN64) != 0; |
| } |
| |
| #ifndef BCMSDIO |
| uint si_corerev(si_t *sih) |
| { |
| if (sih->socitype == SOCI_AI) |
| return ai_corerev(sih); |
| else { |
| ASSERT(0); |
| return 0; |
| } |
| } |
| #endif |
| |
| /* return index of coreid or BADIDX if not found */ |
| uint si_findcoreidx(si_t *sih, uint coreid, uint coreunit) |
| { |
| si_info_t *sii; |
| uint found; |
| uint i; |
| |
| sii = SI_INFO(sih); |
| |
| found = 0; |
| |
| for (i = 0; i < sii->numcores; i++) |
| if (sii->coreid[i] == coreid) { |
| if (found == coreunit) |
| return i; |
| found++; |
| } |
| |
| return BADIDX; |
| } |
| |
| /* |
| * This function changes logical "focus" to the indicated core; |
| * must be called with interrupts off. |
| * Moreover, callers should keep interrupts off during switching out of and back to d11 core |
| */ |
| void *si_setcore(si_t *sih, uint coreid, uint coreunit) |
| { |
| uint idx; |
| |
| idx = si_findcoreidx(sih, coreid, coreunit); |
| if (!GOODIDX(idx)) |
| return NULL; |
| |
| if (sih->socitype == SOCI_AI) |
| return ai_setcoreidx(sih, idx); |
| else { |
| #ifdef BCMSDIO |
| return sb_setcoreidx(sih, idx); |
| #else |
| ASSERT(0); |
| return NULL; |
| #endif |
| } |
| } |
| |
| #ifndef BCMSDIO |
| void *si_setcoreidx(si_t *sih, uint coreidx) |
| { |
| if (sih->socitype == SOCI_AI) |
| return ai_setcoreidx(sih, coreidx); |
| else { |
| ASSERT(0); |
| return NULL; |
| } |
| } |
| #endif |
| |
| /* Turn off interrupt as required by sb_setcore, before switch core */ |
| void *si_switch_core(si_t *sih, uint coreid, uint *origidx, uint *intr_val) |
| { |
| void *cc; |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| |
| if (SI_FAST(sii)) { |
| /* Overloading the origidx variable to remember the coreid, |
| * this works because the core ids cannot be confused with |
| * core indices. |
| */ |
| *origidx = coreid; |
| if (coreid == CC_CORE_ID) |
| return (void *)CCREGS_FAST(sii); |
| else if (coreid == sih->buscoretype) |
| return (void *)PCIEREGS(sii); |
| } |
| INTR_OFF(sii, *intr_val); |
| *origidx = sii->curidx; |
| cc = si_setcore(sih, coreid, 0); |
| ASSERT(cc != NULL); |
| |
| return cc; |
| } |
| |
| /* restore coreidx and restore interrupt */ |
| void si_restore_core(si_t *sih, uint coreid, uint intr_val) |
| { |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| if (SI_FAST(sii) |
| && ((coreid == CC_CORE_ID) || (coreid == sih->buscoretype))) |
| return; |
| |
| si_setcoreidx(sih, coreid); |
| INTR_RESTORE(sii, intr_val); |
| } |
| |
| u32 si_core_cflags(si_t *sih, u32 mask, u32 val) |
| { |
| if (sih->socitype == SOCI_AI) |
| return ai_core_cflags(sih, mask, val); |
| else { |
| ASSERT(0); |
| return 0; |
| } |
| } |
| |
| u32 si_core_sflags(si_t *sih, u32 mask, u32 val) |
| { |
| if (sih->socitype == SOCI_AI) |
| return ai_core_sflags(sih, mask, val); |
| else { |
| ASSERT(0); |
| return 0; |
| } |
| } |
| |
| bool si_iscoreup(si_t *sih) |
| { |
| if (sih->socitype == SOCI_AI) |
| return ai_iscoreup(sih); |
| else { |
| #ifdef BCMSDIO |
| return sb_iscoreup(sih); |
| #else |
| ASSERT(0); |
| return false; |
| #endif |
| } |
| } |
| |
| void si_write_wrapperreg(si_t *sih, u32 offset, u32 val) |
| { |
| /* only for 4319, no requirement for SOCI_SB */ |
| if (sih->socitype == SOCI_AI) { |
| ai_write_wrap_reg(sih, offset, val); |
| } |
| } |
| |
| uint si_corereg(si_t *sih, uint coreidx, uint regoff, uint mask, uint val) |
| { |
| |
| if (sih->socitype == SOCI_AI) |
| return ai_corereg(sih, coreidx, regoff, mask, val); |
| else { |
| #ifdef BCMSDIO |
| return sb_corereg(sih, coreidx, regoff, mask, val); |
| #else |
| ASSERT(0); |
| return 0; |
| #endif |
| } |
| } |
| |
| void si_core_disable(si_t *sih, u32 bits) |
| { |
| |
| if (sih->socitype == SOCI_AI) |
| ai_core_disable(sih, bits); |
| #ifdef BCMSDIO |
| else |
| sb_core_disable(sih, bits); |
| #endif |
| } |
| |
| void si_core_reset(si_t *sih, u32 bits, u32 resetbits) |
| { |
| if (sih->socitype == SOCI_AI) |
| ai_core_reset(sih, bits, resetbits); |
| #ifdef BCMSDIO |
| else |
| sb_core_reset(sih, bits, resetbits); |
| #endif |
| } |
| |
| u32 si_alp_clock(si_t *sih) |
| { |
| if (PMUCTL_ENAB(sih)) |
| return si_pmu_alp_clock(sih); |
| |
| return ALP_CLOCK; |
| } |
| |
| u32 si_ilp_clock(si_t *sih) |
| { |
| if (PMUCTL_ENAB(sih)) |
| return si_pmu_ilp_clock(sih); |
| |
| return ILP_CLOCK; |
| } |
| |
| /* set chip watchdog reset timer to fire in 'ticks' */ |
| #ifdef BRCM_FULLMAC |
| void |
| si_watchdog(si_t *sih, uint ticks) |
| { |
| if (PMUCTL_ENAB(sih)) { |
| |
| if ((sih->chip == BCM4319_CHIP_ID) && (sih->chiprev == 0) && |
| (ticks != 0)) { |
| si_corereg(sih, SI_CC_IDX, offsetof(chipcregs_t, |
| clk_ctl_st), ~0, 0x2); |
| si_setcore(sih, USB20D_CORE_ID, 0); |
| si_core_disable(sih, 1); |
| si_setcore(sih, CC_CORE_ID, 0); |
| } |
| |
| if (ticks == 1) |
| ticks = 2; |
| si_corereg(sih, SI_CC_IDX, offsetof(chipcregs_t, pmuwatchdog), |
| ~0, ticks); |
| } else { |
| /* instant NMI */ |
| si_corereg(sih, SI_CC_IDX, offsetof(chipcregs_t, watchdog), |
| ~0, ticks); |
| } |
| } |
| #else |
| void si_watchdog(si_t *sih, uint ticks) |
| { |
| uint nb, maxt; |
| |
| if (PMUCTL_ENAB(sih)) { |
| |
| if ((sih->chip == BCM4319_CHIP_ID) && |
| (sih->chiprev == 0) && (ticks != 0)) { |
| si_corereg(sih, SI_CC_IDX, |
| offsetof(chipcregs_t, clk_ctl_st), ~0, 0x2); |
| si_setcore(sih, USB20D_CORE_ID, 0); |
| si_core_disable(sih, 1); |
| si_setcore(sih, CC_CORE_ID, 0); |
| } |
| |
| nb = (sih->ccrev < 26) ? 16 : ((sih->ccrev >= 37) ? 32 : 24); |
| /* The mips compiler uses the sllv instruction, |
| * so we specially handle the 32-bit case. |
| */ |
| if (nb == 32) |
| maxt = 0xffffffff; |
| else |
| maxt = ((1 << nb) - 1); |
| |
| if (ticks == 1) |
| ticks = 2; |
| else if (ticks > maxt) |
| ticks = maxt; |
| |
| si_corereg(sih, SI_CC_IDX, offsetof(chipcregs_t, pmuwatchdog), |
| ~0, ticks); |
| } else { |
| /* make sure we come up in fast clock mode; or if clearing, clear clock */ |
| si_clkctl_cc(sih, ticks ? CLK_FAST : CLK_DYNAMIC); |
| maxt = (1 << 28) - 1; |
| if (ticks > maxt) |
| ticks = maxt; |
| |
| si_corereg(sih, SI_CC_IDX, offsetof(chipcregs_t, watchdog), ~0, |
| ticks); |
| } |
| } |
| #endif |
| |
| /* return the slow clock source - LPO, XTAL, or PCI */ |
| static uint si_slowclk_src(si_info_t *sii) |
| { |
| chipcregs_t *cc; |
| u32 val; |
| |
| ASSERT(SI_FAST(sii) || si_coreid(&sii->pub) == CC_CORE_ID); |
| |
| if (sii->pub.ccrev < 6) { |
| if (sii->pub.bustype == PCI_BUS) { |
| pci_read_config_dword(sii->pbus, PCI_GPIO_OUT, |
| &val); |
| if (val & PCI_CFG_GPIO_SCS) |
| return SCC_SS_PCI; |
| } |
| return SCC_SS_XTAL; |
| } else if (sii->pub.ccrev < 10) { |
| cc = (chipcregs_t *) si_setcoreidx(&sii->pub, sii->curidx); |
| return R_REG(&cc->slow_clk_ctl) & SCC_SS_MASK; |
| } else /* Insta-clock */ |
| return SCC_SS_XTAL; |
| } |
| |
| /* return the ILP (slowclock) min or max frequency */ |
| static uint si_slowclk_freq(si_info_t *sii, bool max_freq, chipcregs_t *cc) |
| { |
| u32 slowclk; |
| uint div; |
| |
| ASSERT(SI_FAST(sii) || si_coreid(&sii->pub) == CC_CORE_ID); |
| |
| /* shouldn't be here unless we've established the chip has dynamic clk control */ |
| ASSERT(R_REG(&cc->capabilities) & CC_CAP_PWR_CTL); |
| |
| slowclk = si_slowclk_src(sii); |
| if (sii->pub.ccrev < 6) { |
| if (slowclk == SCC_SS_PCI) |
| return max_freq ? (PCIMAXFREQ / 64) |
| : (PCIMINFREQ / 64); |
| else |
| return max_freq ? (XTALMAXFREQ / 32) |
| : (XTALMINFREQ / 32); |
| } else if (sii->pub.ccrev < 10) { |
| div = 4 * |
| (((R_REG(&cc->slow_clk_ctl) & SCC_CD_MASK) >> |
| SCC_CD_SHIFT) + 1); |
| if (slowclk == SCC_SS_LPO) |
| return max_freq ? LPOMAXFREQ : LPOMINFREQ; |
| else if (slowclk == SCC_SS_XTAL) |
| return max_freq ? (XTALMAXFREQ / div) |
| : (XTALMINFREQ / div); |
| else if (slowclk == SCC_SS_PCI) |
| return max_freq ? (PCIMAXFREQ / div) |
| : (PCIMINFREQ / div); |
| else |
| ASSERT(0); |
| } else { |
| /* Chipc rev 10 is InstaClock */ |
| div = R_REG(&cc->system_clk_ctl) >> SYCC_CD_SHIFT; |
| div = 4 * (div + 1); |
| return max_freq ? XTALMAXFREQ : (XTALMINFREQ / div); |
| } |
| return 0; |
| } |
| |
| static void si_clkctl_setdelay(si_info_t *sii, void *chipcregs) |
| { |
| chipcregs_t *cc = (chipcregs_t *) chipcregs; |
| uint slowmaxfreq, pll_delay, slowclk; |
| uint pll_on_delay, fref_sel_delay; |
| |
| pll_delay = PLL_DELAY; |
| |
| /* If the slow clock is not sourced by the xtal then add the xtal_on_delay |
| * since the xtal will also be powered down by dynamic clk control logic. |
| */ |
| |
| slowclk = si_slowclk_src(sii); |
| if (slowclk != SCC_SS_XTAL) |
| pll_delay += XTAL_ON_DELAY; |
| |
| /* Starting with 4318 it is ILP that is used for the delays */ |
| slowmaxfreq = |
| si_slowclk_freq(sii, (sii->pub.ccrev >= 10) ? false : true, cc); |
| |
| pll_on_delay = ((slowmaxfreq * pll_delay) + 999999) / 1000000; |
| fref_sel_delay = ((slowmaxfreq * FREF_DELAY) + 999999) / 1000000; |
| |
| W_REG(&cc->pll_on_delay, pll_on_delay); |
| W_REG(&cc->fref_sel_delay, fref_sel_delay); |
| } |
| |
| /* initialize power control delay registers */ |
| void si_clkctl_init(si_t *sih) |
| { |
| si_info_t *sii; |
| uint origidx = 0; |
| chipcregs_t *cc; |
| bool fast; |
| |
| if (!CCCTL_ENAB(sih)) |
| return; |
| |
| sii = SI_INFO(sih); |
| fast = SI_FAST(sii); |
| if (!fast) { |
| origidx = sii->curidx; |
| cc = (chipcregs_t *) si_setcore(sih, CC_CORE_ID, 0); |
| if (cc == NULL) |
| return; |
| } else { |
| cc = (chipcregs_t *) CCREGS_FAST(sii); |
| if (cc == NULL) |
| return; |
| } |
| ASSERT(cc != NULL); |
| |
| /* set all Instaclk chip ILP to 1 MHz */ |
| if (sih->ccrev >= 10) |
| SET_REG(&cc->system_clk_ctl, SYCC_CD_MASK, |
| (ILP_DIV_1MHZ << SYCC_CD_SHIFT)); |
| |
| si_clkctl_setdelay(sii, (void *)cc); |
| |
| if (!fast) |
| si_setcoreidx(sih, origidx); |
| } |
| |
| /* return the value suitable for writing to the dot11 core FAST_PWRUP_DELAY register */ |
| u16 si_clkctl_fast_pwrup_delay(si_t *sih) |
| { |
| si_info_t *sii; |
| uint origidx = 0; |
| chipcregs_t *cc; |
| uint slowminfreq; |
| u16 fpdelay; |
| uint intr_val = 0; |
| bool fast; |
| |
| sii = SI_INFO(sih); |
| if (PMUCTL_ENAB(sih)) { |
| INTR_OFF(sii, intr_val); |
| fpdelay = si_pmu_fast_pwrup_delay(sih); |
| INTR_RESTORE(sii, intr_val); |
| return fpdelay; |
| } |
| |
| if (!CCCTL_ENAB(sih)) |
| return 0; |
| |
| fast = SI_FAST(sii); |
| fpdelay = 0; |
| if (!fast) { |
| origidx = sii->curidx; |
| INTR_OFF(sii, intr_val); |
| cc = (chipcregs_t *) si_setcore(sih, CC_CORE_ID, 0); |
| if (cc == NULL) |
| goto done; |
| } else { |
| cc = (chipcregs_t *) CCREGS_FAST(sii); |
| if (cc == NULL) |
| goto done; |
| } |
| ASSERT(cc != NULL); |
| |
| slowminfreq = si_slowclk_freq(sii, false, cc); |
| fpdelay = (((R_REG(&cc->pll_on_delay) + 2) * 1000000) + |
| (slowminfreq - 1)) / slowminfreq; |
| |
| done: |
| if (!fast) { |
| si_setcoreidx(sih, origidx); |
| INTR_RESTORE(sii, intr_val); |
| } |
| return fpdelay; |
| } |
| |
| /* turn primary xtal and/or pll off/on */ |
| int si_clkctl_xtal(si_t *sih, uint what, bool on) |
| { |
| si_info_t *sii; |
| u32 in, out, outen; |
| |
| sii = SI_INFO(sih); |
| |
| switch (sih->bustype) { |
| |
| #ifdef BCMSDIO |
| case SDIO_BUS: |
| return -1; |
| #endif /* BCMSDIO */ |
| |
| case PCI_BUS: |
| /* pcie core doesn't have any mapping to control the xtal pu */ |
| if (PCIE(sii)) |
| return -1; |
| |
| pci_read_config_dword(sii->pbus, PCI_GPIO_IN, &in); |
| pci_read_config_dword(sii->pbus, PCI_GPIO_OUT, &out); |
| pci_read_config_dword(sii->pbus, PCI_GPIO_OUTEN, &outen); |
| |
| /* |
| * Avoid glitching the clock if GPRS is already using it. |
| * We can't actually read the state of the PLLPD so we infer it |
| * by the value of XTAL_PU which *is* readable via gpioin. |
| */ |
| if (on && (in & PCI_CFG_GPIO_XTAL)) |
| return 0; |
| |
| if (what & XTAL) |
| outen |= PCI_CFG_GPIO_XTAL; |
| if (what & PLL) |
| outen |= PCI_CFG_GPIO_PLL; |
| |
| if (on) { |
| /* turn primary xtal on */ |
| if (what & XTAL) { |
| out |= PCI_CFG_GPIO_XTAL; |
| if (what & PLL) |
| out |= PCI_CFG_GPIO_PLL; |
| pci_write_config_dword(sii->pbus, |
| PCI_GPIO_OUT, out); |
| pci_write_config_dword(sii->pbus, |
| PCI_GPIO_OUTEN, outen); |
| udelay(XTAL_ON_DELAY); |
| } |
| |
| /* turn pll on */ |
| if (what & PLL) { |
| out &= ~PCI_CFG_GPIO_PLL; |
| pci_write_config_dword(sii->pbus, |
| PCI_GPIO_OUT, out); |
| mdelay(2); |
| } |
| } else { |
| if (what & XTAL) |
| out &= ~PCI_CFG_GPIO_XTAL; |
| if (what & PLL) |
| out |= PCI_CFG_GPIO_PLL; |
| pci_write_config_dword(sii->pbus, |
| PCI_GPIO_OUT, out); |
| pci_write_config_dword(sii->pbus, |
| PCI_GPIO_OUTEN, outen); |
| } |
| |
| default: |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * clock control policy function throught chipcommon |
| * |
| * set dynamic clk control mode (forceslow, forcefast, dynamic) |
| * returns true if we are forcing fast clock |
| * this is a wrapper over the next internal function |
| * to allow flexible policy settings for outside caller |
| */ |
| bool si_clkctl_cc(si_t *sih, uint mode) |
| { |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| |
| /* chipcommon cores prior to rev6 don't support dynamic clock control */ |
| if (sih->ccrev < 6) |
| return false; |
| |
| if (PCI_FORCEHT(sii)) |
| return mode == CLK_FAST; |
| |
| return _si_clkctl_cc(sii, mode); |
| } |
| |
| /* clk control mechanism through chipcommon, no policy checking */ |
| static bool _si_clkctl_cc(si_info_t *sii, uint mode) |
| { |
| uint origidx = 0; |
| chipcregs_t *cc; |
| u32 scc; |
| uint intr_val = 0; |
| bool fast = SI_FAST(sii); |
| |
| /* chipcommon cores prior to rev6 don't support dynamic clock control */ |
| if (sii->pub.ccrev < 6) |
| return false; |
| |
| /* Chips with ccrev 10 are EOL and they don't have SYCC_HR which we use below */ |
| ASSERT(sii->pub.ccrev != 10); |
| |
| if (!fast) { |
| INTR_OFF(sii, intr_val); |
| origidx = sii->curidx; |
| |
| if ((sii->pub.bustype == SI_BUS) && |
| si_setcore(&sii->pub, MIPS33_CORE_ID, 0) && |
| (si_corerev(&sii->pub) <= 7) && (sii->pub.ccrev >= 10)) |
| goto done; |
| |
| cc = (chipcregs_t *) si_setcore(&sii->pub, CC_CORE_ID, 0); |
| } else { |
| cc = (chipcregs_t *) CCREGS_FAST(sii); |
| if (cc == NULL) |
| goto done; |
| } |
| ASSERT(cc != NULL); |
| |
| if (!CCCTL_ENAB(&sii->pub) && (sii->pub.ccrev < 20)) |
| goto done; |
| |
| switch (mode) { |
| case CLK_FAST: /* FORCEHT, fast (pll) clock */ |
| if (sii->pub.ccrev < 10) { |
| /* don't forget to force xtal back on before we clear SCC_DYN_XTAL.. */ |
| si_clkctl_xtal(&sii->pub, XTAL, ON); |
| SET_REG(&cc->slow_clk_ctl, |
| (SCC_XC | SCC_FS | SCC_IP), SCC_IP); |
| } else if (sii->pub.ccrev < 20) { |
| OR_REG(&cc->system_clk_ctl, SYCC_HR); |
| } else { |
| OR_REG(&cc->clk_ctl_st, CCS_FORCEHT); |
| } |
| |
| /* wait for the PLL */ |
| if (PMUCTL_ENAB(&sii->pub)) { |
| u32 htavail = CCS_HTAVAIL; |
| SPINWAIT(((R_REG(&cc->clk_ctl_st) & htavail) |
| == 0), PMU_MAX_TRANSITION_DLY); |
| ASSERT(R_REG(&cc->clk_ctl_st) & htavail); |
| } else { |
| udelay(PLL_DELAY); |
| } |
| break; |
| |
| case CLK_DYNAMIC: /* enable dynamic clock control */ |
| if (sii->pub.ccrev < 10) { |
| scc = R_REG(&cc->slow_clk_ctl); |
| scc &= ~(SCC_FS | SCC_IP | SCC_XC); |
| if ((scc & SCC_SS_MASK) != SCC_SS_XTAL) |
| scc |= SCC_XC; |
| W_REG(&cc->slow_clk_ctl, scc); |
| |
| /* for dynamic control, we have to release our xtal_pu "force on" */ |
| if (scc & SCC_XC) |
| si_clkctl_xtal(&sii->pub, XTAL, OFF); |
| } else if (sii->pub.ccrev < 20) { |
| /* Instaclock */ |
| AND_REG(&cc->system_clk_ctl, ~SYCC_HR); |
| } else { |
| AND_REG(&cc->clk_ctl_st, ~CCS_FORCEHT); |
| } |
| break; |
| |
| default: |
| ASSERT(0); |
| } |
| |
| done: |
| if (!fast) { |
| si_setcoreidx(&sii->pub, origidx); |
| INTR_RESTORE(sii, intr_val); |
| } |
| return mode == CLK_FAST; |
| } |
| |
| /* Build device path. Support SI, PCI, and JTAG for now. */ |
| int si_devpath(si_t *sih, char *path, int size) |
| { |
| int slen; |
| |
| ASSERT(path != NULL); |
| ASSERT(size >= SI_DEVPATH_BUFSZ); |
| |
| if (!path || size <= 0) |
| return -1; |
| |
| switch (sih->bustype) { |
| case SI_BUS: |
| case JTAG_BUS: |
| slen = snprintf(path, (size_t) size, "sb/%u/", si_coreidx(sih)); |
| break; |
| case PCI_BUS: |
| ASSERT((SI_INFO(sih))->pbus != NULL); |
| slen = snprintf(path, (size_t) size, "pci/%u/%u/", |
| ((struct pci_dev *)((SI_INFO(sih))->pbus))->bus->number, |
| PCI_SLOT( |
| ((struct pci_dev *)((SI_INFO(sih))->pbus))->devfn)); |
| break; |
| |
| #ifdef BCMSDIO |
| case SDIO_BUS: |
| SI_ERROR(("si_devpath: device 0 assumed\n")); |
| slen = snprintf(path, (size_t) size, "sd/%u/", si_coreidx(sih)); |
| break; |
| #endif |
| default: |
| slen = -1; |
| ASSERT(0); |
| break; |
| } |
| |
| if (slen < 0 || slen >= size) { |
| path[0] = '\0'; |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| /* Get a variable, but only if it has a devpath prefix */ |
| char *si_getdevpathvar(si_t *sih, const char *name) |
| { |
| char varname[SI_DEVPATH_BUFSZ + 32]; |
| |
| si_devpathvar(sih, varname, sizeof(varname), name); |
| |
| return getvar(NULL, varname); |
| } |
| |
| /* Get a variable, but only if it has a devpath prefix */ |
| int si_getdevpathintvar(si_t *sih, const char *name) |
| { |
| #if defined(BCMBUSTYPE) && (BCMBUSTYPE == SI_BUS) |
| return getintvar(NULL, name); |
| #else |
| char varname[SI_DEVPATH_BUFSZ + 32]; |
| |
| si_devpathvar(sih, varname, sizeof(varname), name); |
| |
| return getintvar(NULL, varname); |
| #endif |
| } |
| |
| char *si_getnvramflvar(si_t *sih, const char *name) |
| { |
| return getvar(NULL, name); |
| } |
| |
| /* Concatenate the dev path with a varname into the given 'var' buffer |
| * and return the 'var' pointer. |
| * Nothing is done to the arguments if len == 0 or var is NULL, var is still returned. |
| * On overflow, the first char will be set to '\0'. |
| */ |
| static char *si_devpathvar(si_t *sih, char *var, int len, const char *name) |
| { |
| uint path_len; |
| |
| if (!var || len <= 0) |
| return var; |
| |
| if (si_devpath(sih, var, len) == 0) { |
| path_len = strlen(var); |
| |
| if (strlen(name) + 1 > (uint) (len - path_len)) |
| var[0] = '\0'; |
| else |
| strncpy(var + path_len, name, len - path_len - 1); |
| } |
| |
| return var; |
| } |
| |
| /* return true if PCIE capability exists in the pci config space */ |
| static __used bool si_ispcie(si_info_t *sii) |
| { |
| u8 cap_ptr; |
| |
| if (sii->pub.bustype != PCI_BUS) |
| return false; |
| |
| cap_ptr = |
| pcicore_find_pci_capability(sii->pbus, PCI_CAP_PCIECAP_ID, NULL, |
| NULL); |
| if (!cap_ptr) |
| return false; |
| |
| return true; |
| } |
| |
| #ifdef BCMSDIO |
| /* initialize the sdio core */ |
| void si_sdio_init(si_t *sih) |
| { |
| si_info_t *sii = SI_INFO(sih); |
| |
| if (((sih->buscoretype == PCMCIA_CORE_ID) && (sih->buscorerev >= 8)) || |
| (sih->buscoretype == SDIOD_CORE_ID)) { |
| uint idx; |
| sdpcmd_regs_t *sdpregs; |
| |
| /* get the current core index */ |
| idx = sii->curidx; |
| ASSERT(idx == si_findcoreidx(sih, D11_CORE_ID, 0)); |
| |
| /* switch to sdio core */ |
| sdpregs = (sdpcmd_regs_t *) si_setcore(sih, PCMCIA_CORE_ID, 0); |
| if (!sdpregs) |
| sdpregs = |
| (sdpcmd_regs_t *) si_setcore(sih, SDIOD_CORE_ID, 0); |
| ASSERT(sdpregs); |
| |
| SI_MSG(("si_sdio_init: For PCMCIA/SDIO Corerev %d, enable ints from core %d " "through SD core %d (%p)\n", sih->buscorerev, idx, sii->curidx, sdpregs)); |
| |
| /* enable backplane error and core interrupts */ |
| W_REG(&sdpregs->hostintmask, I_SBINT); |
| W_REG(&sdpregs->sbintmask, |
| (I_SB_SERR | I_SB_RESPERR | (1 << idx))); |
| |
| /* switch back to previous core */ |
| si_setcoreidx(sih, idx); |
| } |
| |
| /* enable interrupts */ |
| bcmsdh_intr_enable(sii->pbus); |
| |
| } |
| #endif /* BCMSDIO */ |
| |
| bool si_pci_war16165(si_t *sih) |
| { |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| |
| return PCI(sii) && (sih->buscorerev <= 10); |
| } |
| |
| void si_pci_up(si_t *sih) |
| { |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| |
| /* if not pci bus, we're done */ |
| if (sih->bustype != PCI_BUS) |
| return; |
| |
| if (PCI_FORCEHT(sii)) |
| _si_clkctl_cc(sii, CLK_FAST); |
| |
| if (PCIE(sii)) |
| pcicore_up(sii->pch, SI_PCIUP); |
| |
| } |
| |
| /* Unconfigure and/or apply various WARs when system is going to sleep mode */ |
| void si_pci_sleep(si_t *sih) |
| { |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| |
| pcicore_sleep(sii->pch); |
| } |
| |
| /* Unconfigure and/or apply various WARs when going down */ |
| void si_pci_down(si_t *sih) |
| { |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| |
| /* if not pci bus, we're done */ |
| if (sih->bustype != PCI_BUS) |
| return; |
| |
| /* release FORCEHT since chip is going to "down" state */ |
| if (PCI_FORCEHT(sii)) |
| _si_clkctl_cc(sii, CLK_DYNAMIC); |
| |
| pcicore_down(sii->pch, SI_PCIDOWN); |
| } |
| |
| /* |
| * Configure the pci core for pci client (NIC) action |
| * coremask is the bitvec of cores by index to be enabled. |
| */ |
| void si_pci_setup(si_t *sih, uint coremask) |
| { |
| si_info_t *sii; |
| struct sbpciregs *pciregs = NULL; |
| u32 siflag = 0, w; |
| uint idx = 0; |
| |
| sii = SI_INFO(sih); |
| |
| if (sii->pub.bustype != PCI_BUS) |
| return; |
| |
| ASSERT(PCI(sii) || PCIE(sii)); |
| ASSERT(sii->pub.buscoreidx != BADIDX); |
| |
| if (PCI(sii)) { |
| /* get current core index */ |
| idx = sii->curidx; |
| |
| /* we interrupt on this backplane flag number */ |
| siflag = si_flag(sih); |
| |
| /* switch over to pci core */ |
| pciregs = (struct sbpciregs *)si_setcoreidx(sih, sii->pub.buscoreidx); |
| } |
| |
| /* |
| * Enable sb->pci interrupts. Assume |
| * PCI rev 2.3 support was added in pci core rev 6 and things changed.. |
| */ |
| if (PCIE(sii) || (PCI(sii) && ((sii->pub.buscorerev) >= 6))) { |
| /* pci config write to set this core bit in PCIIntMask */ |
| pci_read_config_dword(sii->pbus, PCI_INT_MASK, &w); |
| w |= (coremask << PCI_SBIM_SHIFT); |
| pci_write_config_dword(sii->pbus, PCI_INT_MASK, w); |
| } else { |
| /* set sbintvec bit for our flag number */ |
| si_setint(sih, siflag); |
| } |
| |
| if (PCI(sii)) { |
| OR_REG(&pciregs->sbtopci2, |
| (SBTOPCI_PREF | SBTOPCI_BURST)); |
| if (sii->pub.buscorerev >= 11) { |
| OR_REG(&pciregs->sbtopci2, |
| SBTOPCI_RC_READMULTI); |
| w = R_REG(&pciregs->clkrun); |
| W_REG(&pciregs->clkrun, |
| (w | PCI_CLKRUN_DSBL)); |
| w = R_REG(&pciregs->clkrun); |
| } |
| |
| /* switch back to previous core */ |
| si_setcoreidx(sih, idx); |
| } |
| } |
| |
| /* |
| * Fixup SROMless PCI device's configuration. |
| * The current core may be changed upon return. |
| */ |
| int si_pci_fixcfg(si_t *sih) |
| { |
| uint origidx, pciidx; |
| struct sbpciregs *pciregs = NULL; |
| sbpcieregs_t *pcieregs = NULL; |
| void *regs = NULL; |
| u16 val16, *reg16 = NULL; |
| |
| si_info_t *sii = SI_INFO(sih); |
| |
| ASSERT(sii->pub.bustype == PCI_BUS); |
| |
| /* Fixup PI in SROM shadow area to enable the correct PCI core access */ |
| /* save the current index */ |
| origidx = si_coreidx(&sii->pub); |
| |
| /* check 'pi' is correct and fix it if not */ |
| if (sii->pub.buscoretype == PCIE_CORE_ID) { |
| pcieregs = |
| (sbpcieregs_t *) si_setcore(&sii->pub, PCIE_CORE_ID, 0); |
| regs = pcieregs; |
| ASSERT(pcieregs != NULL); |
| reg16 = &pcieregs->sprom[SRSH_PI_OFFSET]; |
| } else if (sii->pub.buscoretype == PCI_CORE_ID) { |
| pciregs = (struct sbpciregs *)si_setcore(&sii->pub, PCI_CORE_ID, 0); |
| regs = pciregs; |
| ASSERT(pciregs != NULL); |
| reg16 = &pciregs->sprom[SRSH_PI_OFFSET]; |
| } |
| pciidx = si_coreidx(&sii->pub); |
| val16 = R_REG(reg16); |
| if (((val16 & SRSH_PI_MASK) >> SRSH_PI_SHIFT) != (u16) pciidx) { |
| val16 = |
| (u16) (pciidx << SRSH_PI_SHIFT) | (val16 & |
| ~SRSH_PI_MASK); |
| W_REG(reg16, val16); |
| } |
| |
| /* restore the original index */ |
| si_setcoreidx(&sii->pub, origidx); |
| |
| pcicore_hwup(sii->pch); |
| return 0; |
| } |
| |
| /* mask&set gpiocontrol bits */ |
| u32 si_gpiocontrol(si_t *sih, u32 mask, u32 val, u8 priority) |
| { |
| uint regoff; |
| |
| regoff = 0; |
| |
| /* gpios could be shared on router platforms |
| * ignore reservation if it's high priority (e.g., test apps) |
| */ |
| if ((priority != GPIO_HI_PRIORITY) && |
| (sih->bustype == SI_BUS) && (val || mask)) { |
| mask = priority ? (si_gpioreservation & mask) : |
| ((si_gpioreservation | mask) & ~(si_gpioreservation)); |
| val &= mask; |
| } |
| |
| regoff = offsetof(chipcregs_t, gpiocontrol); |
| return si_corereg(sih, SI_CC_IDX, regoff, mask, val); |
| } |
| |
| /* Return the size of the specified SOCRAM bank */ |
| static uint |
| socram_banksize(si_info_t *sii, sbsocramregs_t *regs, u8 index, |
| u8 mem_type) |
| { |
| uint banksize, bankinfo; |
| uint bankidx = index | (mem_type << SOCRAM_BANKIDX_MEMTYPE_SHIFT); |
| |
| ASSERT(mem_type <= SOCRAM_MEMTYPE_DEVRAM); |
| |
| W_REG(®s->bankidx, bankidx); |
| bankinfo = R_REG(®s->bankinfo); |
| banksize = |
| SOCRAM_BANKINFO_SZBASE * ((bankinfo & SOCRAM_BANKINFO_SZMASK) + 1); |
| return banksize; |
| } |
| |
| /* Return the RAM size of the SOCRAM core */ |
| u32 si_socram_size(si_t *sih) |
| { |
| si_info_t *sii; |
| uint origidx; |
| uint intr_val = 0; |
| |
| sbsocramregs_t *regs; |
| bool wasup; |
| uint corerev; |
| u32 coreinfo; |
| uint memsize = 0; |
| |
| sii = SI_INFO(sih); |
| |
| /* Block ints and save current core */ |
| INTR_OFF(sii, intr_val); |
| origidx = si_coreidx(sih); |
| |
| /* Switch to SOCRAM core */ |
| regs = si_setcore(sih, SOCRAM_CORE_ID, 0); |
| if (!regs) |
| goto done; |
| |
| /* Get info for determining size */ |
| wasup = si_iscoreup(sih); |
| if (!wasup) |
| si_core_reset(sih, 0, 0); |
| corerev = si_corerev(sih); |
| coreinfo = R_REG(®s->coreinfo); |
| |
| /* Calculate size from coreinfo based on rev */ |
| if (corerev == 0) |
| memsize = 1 << (16 + (coreinfo & SRCI_MS0_MASK)); |
| else if (corerev < 3) { |
| memsize = 1 << (SR_BSZ_BASE + (coreinfo & SRCI_SRBSZ_MASK)); |
| memsize *= (coreinfo & SRCI_SRNB_MASK) >> SRCI_SRNB_SHIFT; |
| } else if ((corerev <= 7) || (corerev == 12)) { |
| uint nb = (coreinfo & SRCI_SRNB_MASK) >> SRCI_SRNB_SHIFT; |
| uint bsz = (coreinfo & SRCI_SRBSZ_MASK); |
| uint lss = (coreinfo & SRCI_LSS_MASK) >> SRCI_LSS_SHIFT; |
| if (lss != 0) |
| nb--; |
| memsize = nb * (1 << (bsz + SR_BSZ_BASE)); |
| if (lss != 0) |
| memsize += (1 << ((lss - 1) + SR_BSZ_BASE)); |
| } else { |
| u8 i; |
| uint nb = (coreinfo & SRCI_SRNB_MASK) >> SRCI_SRNB_SHIFT; |
| for (i = 0; i < nb; i++) |
| memsize += |
| socram_banksize(sii, regs, i, SOCRAM_MEMTYPE_RAM); |
| } |
| |
| /* Return to previous state and core */ |
| if (!wasup) |
| si_core_disable(sih, 0); |
| si_setcoreidx(sih, origidx); |
| |
| done: |
| INTR_RESTORE(sii, intr_val); |
| |
| return memsize; |
| } |
| |
| void si_chipcontrl_epa4331(si_t *sih, bool on) |
| { |
| si_info_t *sii; |
| chipcregs_t *cc; |
| uint origidx; |
| u32 val; |
| |
| sii = SI_INFO(sih); |
| origidx = si_coreidx(sih); |
| |
| cc = (chipcregs_t *) si_setcore(sih, CC_CORE_ID, 0); |
| |
| val = R_REG(&cc->chipcontrol); |
| |
| if (on) { |
| if (sih->chippkg == 9 || sih->chippkg == 0xb) { |
| /* Ext PA Controls for 4331 12x9 Package */ |
| W_REG(&cc->chipcontrol, val | |
| (CCTRL4331_EXTPA_EN | |
| CCTRL4331_EXTPA_ON_GPIO2_5)); |
| } else { |
| /* Ext PA Controls for 4331 12x12 Package */ |
| W_REG(&cc->chipcontrol, |
| val | (CCTRL4331_EXTPA_EN)); |
| } |
| } else { |
| val &= ~(CCTRL4331_EXTPA_EN | CCTRL4331_EXTPA_ON_GPIO2_5); |
| W_REG(&cc->chipcontrol, val); |
| } |
| |
| si_setcoreidx(sih, origidx); |
| } |
| |
| /* Enable BT-COEX & Ex-PA for 4313 */ |
| void si_epa_4313war(si_t *sih) |
| { |
| si_info_t *sii; |
| chipcregs_t *cc; |
| uint origidx; |
| |
| sii = SI_INFO(sih); |
| origidx = si_coreidx(sih); |
| |
| cc = (chipcregs_t *) si_setcore(sih, CC_CORE_ID, 0); |
| |
| /* EPA Fix */ |
| W_REG(&cc->gpiocontrol, |
| R_REG(&cc->gpiocontrol) | GPIO_CTRL_EPA_EN_MASK); |
| |
| si_setcoreidx(sih, origidx); |
| } |
| |
| /* check if the device is removed */ |
| bool si_deviceremoved(si_t *sih) |
| { |
| u32 w; |
| si_info_t *sii; |
| |
| sii = SI_INFO(sih); |
| |
| switch (sih->bustype) { |
| case PCI_BUS: |
| ASSERT(sii->pbus != NULL); |
| pci_read_config_dword(sii->pbus, PCI_CFG_VID, &w); |
| if ((w & 0xFFFF) != VENDOR_BROADCOM) |
| return true; |
| break; |
| } |
| return false; |
| } |
| |
| bool si_is_sprom_available(si_t *sih) |
| { |
| if (sih->ccrev >= 31) { |
| si_info_t *sii; |
| uint origidx; |
| chipcregs_t *cc; |
| u32 sromctrl; |
| |
| if ((sih->cccaps & CC_CAP_SROM) == 0) |
| return false; |
| |
| sii = SI_INFO(sih); |
| origidx = sii->curidx; |
| cc = si_setcoreidx(sih, SI_CC_IDX); |
| sromctrl = R_REG(&cc->sromcontrol); |
| si_setcoreidx(sih, origidx); |
| return sromctrl & SRC_PRESENT; |
| } |
| |
| switch (sih->chip) { |
| case BCM4329_CHIP_ID: |
| return (sih->chipst & CST4329_SPROM_SEL) != 0; |
| case BCM4319_CHIP_ID: |
| return (sih->chipst & CST4319_SPROM_SEL) != 0; |
| case BCM4336_CHIP_ID: |
| return (sih->chipst & CST4336_SPROM_PRESENT) != 0; |
| case BCM4330_CHIP_ID: |
| return (sih->chipst & CST4330_SPROM_PRESENT) != 0; |
| case BCM4313_CHIP_ID: |
| return (sih->chipst & CST4313_SPROM_PRESENT) != 0; |
| case BCM4331_CHIP_ID: |
| return (sih->chipst & CST4331_SPROM_PRESENT) != 0; |
| default: |
| return true; |
| } |
| } |
| |
| bool si_is_otp_disabled(si_t *sih) |
| { |
| switch (sih->chip) { |
| case BCM4329_CHIP_ID: |
| return (sih->chipst & CST4329_SPROM_OTP_SEL_MASK) == |
| CST4329_OTP_PWRDN; |
| case BCM4319_CHIP_ID: |
| return (sih->chipst & CST4319_SPROM_OTP_SEL_MASK) == |
| CST4319_OTP_PWRDN; |
| case BCM4336_CHIP_ID: |
| return (sih->chipst & CST4336_OTP_PRESENT) == 0; |
| case BCM4330_CHIP_ID: |
| return (sih->chipst & CST4330_OTP_PRESENT) == 0; |
| case BCM4313_CHIP_ID: |
| return (sih->chipst & CST4313_OTP_PRESENT) == 0; |
| /* These chips always have their OTP on */ |
| case BCM43224_CHIP_ID: |
| case BCM43225_CHIP_ID: |
| case BCM43421_CHIP_ID: |
| case BCM43235_CHIP_ID: |
| case BCM43236_CHIP_ID: |
| case BCM43238_CHIP_ID: |
| case BCM4331_CHIP_ID: |
| default: |
| return false; |
| } |
| } |
| |
| bool si_is_otp_powered(si_t *sih) |
| { |
| if (PMUCTL_ENAB(sih)) |
| return si_pmu_is_otp_powered(sih); |
| return true; |
| } |
| |
| void si_otp_power(si_t *sih, bool on) |
| { |
| if (PMUCTL_ENAB(sih)) |
| si_pmu_otp_power(sih, on); |
| udelay(1000); |
| } |
| |