diff options
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmsmac/aiutils.c')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmsmac/aiutils.c | 2079 |
1 files changed, 2079 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c new file mode 100644 index 000000000000..025fa0eb6f47 --- /dev/null +++ b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c @@ -0,0 +1,2079 @@ +/* + * 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. + * + * File contents: support functions for PCI/PCIe + */ + +#include <linux/delay.h> +#include <linux/pci.h> + +#include <defs.h> +#include <chipcommon.h> +#include <brcmu_utils.h> +#include <brcm_hw_ids.h> +#include <soc.h> +#include "types.h" +#include "pub.h" +#include "pmu.h" +#include "srom.h" +#include "nicpci.h" +#include "aiutils.h" + +/* slow_clk_ctl */ + /* slow clock source mask */ +#define SCC_SS_MASK 0x00000007 + /* source of slow clock is LPO */ +#define SCC_SS_LPO 0x00000000 + /* source of slow clock is crystal */ +#define SCC_SS_XTAL 0x00000001 + /* source of slow clock is PCI */ +#define SCC_SS_PCI 0x00000002 + /* LPOFreqSel, 1: 160Khz, 0: 32KHz */ +#define SCC_LF 0x00000200 + /* LPOPowerDown, 1: LPO is disabled, 0: LPO is enabled */ +#define SCC_LP 0x00000400 + /* ForceSlowClk, 1: sb/cores running on slow clock, 0: power logic control */ +#define SCC_FS 0x00000800 + /* IgnorePllOffReq, 1/0: + * power logic ignores/honors PLL clock disable requests from core + */ +#define SCC_IP 0x00001000 + /* XtalControlEn, 1/0: + * power logic does/doesn't disable crystal when appropriate + */ +#define SCC_XC 0x00002000 + /* XtalPU (RO), 1/0: crystal running/disabled */ +#define SCC_XP 0x00004000 + /* ClockDivider (SlowClk = 1/(4+divisor)) */ +#define SCC_CD_MASK 0xffff0000 +#define SCC_CD_SHIFT 16 + +/* system_clk_ctl */ + /* ILPen: Enable Idle Low Power */ +#define SYCC_IE 0x00000001 + /* ALPen: Enable Active Low Power */ +#define SYCC_AE 0x00000002 + /* ForcePLLOn */ +#define SYCC_FP 0x00000004 + /* Force ALP (or HT if ALPen is not set */ +#define SYCC_AR 0x00000008 + /* Force HT */ +#define SYCC_HR 0x00000010 + /* ClkDiv (ILP = 1/(4 * (divisor + 1)) */ +#define SYCC_CD_MASK 0xffff0000 +#define SYCC_CD_SHIFT 16 + +#define CST4329_SPROM_OTP_SEL_MASK 0x00000003 + /* OTP is powered up, use def. CIS, no SPROM */ +#define CST4329_DEFCIS_SEL 0 + /* OTP is powered up, SPROM is present */ +#define CST4329_SPROM_SEL 1 + /* OTP is powered up, no SPROM */ +#define CST4329_OTP_SEL 2 + /* OTP is powered down, SPROM is present */ +#define CST4329_OTP_PWRDN 3 + +#define CST4329_SPI_SDIO_MODE_MASK 0x00000004 +#define CST4329_SPI_SDIO_MODE_SHIFT 2 + +/* 43224 chip-specific ChipControl register bits */ +#define CCTRL43224_GPIO_TOGGLE 0x8000 + /* 12 mA drive strength */ +#define CCTRL_43224A0_12MA_LED_DRIVE 0x00F000F0 + /* 12 mA drive strength for later 43224s */ +#define CCTRL_43224B0_12MA_LED_DRIVE 0xF0 + +/* 43236 Chip specific ChipStatus register bits */ +#define CST43236_SFLASH_MASK 0x00000040 +#define CST43236_OTP_MASK 0x00000080 +#define CST43236_HSIC_MASK 0x00000100 /* USB/HSIC */ +#define CST43236_BP_CLK 0x00000200 /* 120/96Mbps */ +#define CST43236_BOOT_MASK 0x00001800 +#define CST43236_BOOT_SHIFT 11 +#define CST43236_BOOT_FROM_SRAM 0 /* boot from SRAM, ARM in reset */ +#define CST43236_BOOT_FROM_ROM 1 /* boot from ROM */ +#define CST43236_BOOT_FROM_FLASH 2 /* boot from FLASH */ +#define CST43236_BOOT_FROM_INVALID 3 + +/* 4331 chip-specific ChipControl register bits */ + /* 0 disable */ +#define CCTRL4331_BT_COEXIST (1<<0) + /* 0 SECI is disabled (JTAG functional) */ +#define CCTRL4331_SECI (1<<1) + /* 0 disable */ +#define CCTRL4331_EXT_LNA (1<<2) + /* sprom/gpio13-15 mux */ +#define CCTRL4331_SPROM_GPIO13_15 (1<<3) + /* 0 ext pa disable, 1 ext pa enabled */ +#define CCTRL4331_EXTPA_EN (1<<4) + /* set drive out GPIO_CLK on sprom_cs pin */ +#define CCTRL4331_GPIOCLK_ON_SPROMCS (1<<5) + /* use sprom_cs pin as PCIE mdio interface */ +#define CCTRL4331_PCIE_MDIO_ON_SPROMCS (1<<6) + /* aband extpa will be at gpio2/5 and sprom_dout */ +#define CCTRL4331_EXTPA_ON_GPIO2_5 (1<<7) + /* override core control on pipe_AuxClkEnable */ +#define CCTRL4331_OVR_PIPEAUXCLKEN (1<<8) + /* override core control on pipe_AuxPowerDown */ +#define CCTRL4331_OVR_PIPEAUXPWRDOWN (1<<9) + /* pcie_auxclkenable */ +#define CCTRL4331_PCIE_AUXCLKEN (1<<10) + /* pcie_pipe_pllpowerdown */ +#define CCTRL4331_PCIE_PIPE_PLLDOWN (1<<11) + /* enable bt_shd0 at gpio4 */ +#define CCTRL4331_BT_SHD0_ON_GPIO4 (1<<16) + /* enable bt_shd1 at gpio5 */ +#define CCTRL4331_BT_SHD1_ON_GPIO5 (1<<17) + +/* 4331 Chip specific ChipStatus register bits */ + /* crystal frequency 20/40Mhz */ +#define CST4331_XTAL_FREQ 0x00000001 +#define CST4331_SPROM_PRESENT 0x00000002 +#define CST4331_OTP_PRESENT 0x00000004 +#define CST4331_LDO_RF 0x00000008 +#define CST4331_LDO_PAR 0x00000010 + +/* 4319 chip-specific ChipStatus register bits */ +#define CST4319_SPI_CPULESSUSB 0x00000001 +#define CST4319_SPI_CLK_POL 0x00000002 +#define CST4319_SPI_CLK_PH 0x00000008 + /* gpio [7:6], SDIO CIS selection */ +#define CST4319_SPROM_OTP_SEL_MASK 0x000000c0 +#define CST4319_SPROM_OTP_SEL_SHIFT 6 + /* use default CIS, OTP is powered up */ +#define CST4319_DEFCIS_SEL 0x00000000 + /* use SPROM, OTP is powered up */ +#define CST4319_SPROM_SEL 0x00000040 + /* use OTP, OTP is powered up */ +#define CST4319_OTP_SEL 0x00000080 + /* use SPROM, OTP is powered down */ +#define CST4319_OTP_PWRDN 0x000000c0 + /* gpio [8], sdio/usb mode */ +#define CST4319_SDIO_USB_MODE 0x00000100 +#define CST4319_REMAP_SEL_MASK 0x00000600 +#define CST4319_ILPDIV_EN 0x00000800 +#define CST4319_XTAL_PD_POL 0x00001000 +#define CST4319_LPO_SEL 0x00002000 +#define CST4319_RES_INIT_MODE 0x0000c000 + /* PALDO is configured with external PNP */ +#define CST4319_PALDO_EXTPNP 0x00010000 +#define CST4319_CBUCK_MODE_MASK 0x00060000 +#define CST4319_CBUCK_MODE_BURST 0x00020000 +#define CST4319_CBUCK_MODE_LPBURST 0x00060000 +#define CST4319_RCAL_VALID 0x01000000 +#define CST4319_RCAL_VALUE_MASK 0x3e000000 +#define CST4319_RCAL_VALUE_SHIFT 25 + +/* 4336 chip-specific ChipStatus register bits */ +#define CST4336_SPI_MODE_MASK 0x00000001 +#define CST4336_SPROM_PRESENT 0x00000002 +#define CST4336_OTP_PRESENT 0x00000004 +#define CST4336_ARMREMAP_0 0x00000008 +#define CST4336_ILPDIV_EN_MASK 0x00000010 +#define CST4336_ILPDIV_EN_SHIFT 4 +#define CST4336_XTAL_PD_POL_MASK 0x00000020 +#define CST4336_XTAL_PD_POL_SHIFT 5 +#define CST4336_LPO_SEL_MASK 0x00000040 +#define CST4336_LPO_SEL_SHIFT 6 +#define CST4336_RES_INIT_MODE_MASK 0x00000180 +#define CST4336_RES_INIT_MODE_SHIFT 7 +#define CST4336_CBUCK_MODE_MASK 0x00000600 +#define CST4336_CBUCK_MODE_SHIFT 9 + +/* 4313 chip-specific ChipStatus register bits */ +#define CST4313_SPROM_PRESENT 1 +#define CST4313_OTP_PRESENT 2 +#define CST4313_SPROM_OTP_SEL_MASK 0x00000002 +#define CST4313_SPROM_OTP_SEL_SHIFT 0 + +/* 4313 Chip specific ChipControl register bits */ + /* 12 mA drive strengh for later 4313 */ +#define CCTRL_4313_12MA_LED_DRIVE 0x00000007 + +/* Manufacturer Ids */ +#define MFGID_ARM 0x43b +#define MFGID_BRCM 0x4bf +#define MFGID_MIPS 0x4a7 + +/* Enumeration ROM registers */ +#define ER_EROMENTRY 0x000 +#define ER_REMAPCONTROL 0xe00 +#define ER_REMAPSELECT 0xe04 +#define ER_MASTERSELECT 0xe10 +#define ER_ITCR 0xf00 +#define ER_ITIP 0xf04 + +/* Erom entries */ +#define ER_TAG 0xe +#define ER_TAG1 0x6 +#define ER_VALID 1 +#define ER_CI 0 +#define ER_MP 2 +#define ER_ADD 4 +#define ER_END 0xe +#define ER_BAD 0xffffffff + +/* EROM CompIdentA */ +#define CIA_MFG_MASK 0xfff00000 +#define CIA_MFG_SHIFT 20 +#define CIA_CID_MASK 0x000fff00 +#define CIA_CID_SHIFT 8 +#define CIA_CCL_MASK 0x000000f0 +#define CIA_CCL_SHIFT 4 + +/* EROM CompIdentB */ +#define CIB_REV_MASK 0xff000000 +#define CIB_REV_SHIFT 24 +#define CIB_NSW_MASK 0x00f80000 +#define CIB_NSW_SHIFT 19 +#define CIB_NMW_MASK 0x0007c000 +#define CIB_NMW_SHIFT 14 +#define CIB_NSP_MASK 0x00003e00 +#define CIB_NSP_SHIFT 9 +#define CIB_NMP_MASK 0x000001f0 +#define CIB_NMP_SHIFT 4 + +/* EROM AddrDesc */ +#define AD_ADDR_MASK 0xfffff000 +#define AD_SP_MASK 0x00000f00 +#define AD_SP_SHIFT 8 +#define AD_ST_MASK 0x000000c0 +#define AD_ST_SHIFT 6 +#define AD_ST_SLAVE 0x00000000 +#define AD_ST_BRIDGE 0x00000040 +#define AD_ST_SWRAP 0x00000080 +#define AD_ST_MWRAP 0x000000c0 +#define AD_SZ_MASK 0x00000030 +#define AD_SZ_SHIFT 4 +#define AD_SZ_4K 0x00000000 +#define AD_SZ_8K 0x00000010 +#define AD_SZ_16K 0x00000020 +#define AD_SZ_SZD 0x00000030 +#define AD_AG32 0x00000008 +#define AD_ADDR_ALIGN 0x00000fff +#define AD_SZ_BASE 0x00001000 /* 4KB */ + +/* EROM SizeDesc */ +#define SD_SZ_MASK 0xfffff000 +#define SD_SG32 0x00000008 +#define SD_SZ_ALIGN 0x00000fff + +/* PCI config space bit 4 for 4306c0 slow clock source */ +#define PCI_CFG_GPIO_SCS 0x10 +/* PCI config space GPIO 14 for Xtal power-up */ +#define PCI_CFG_GPIO_XTAL 0x40 +/* PCI config space GPIO 15 for PLL power-down */ +#define PCI_CFG_GPIO_PLL 0x80 + +/* power control defines */ +#define PLL_DELAY 150 /* us pll on delay */ +#define FREF_DELAY 200 /* us fref change delay */ +#define XTAL_ON_DELAY 1000 /* us crystal power-on delay */ + +/* resetctrl */ +#define AIRC_RESET 1 + +#define NOREV -1 /* Invalid rev */ + +/* GPIO Based LED powersave defines */ +#define DEFAULT_GPIO_ONTIME 10 /* Default: 10% on */ +#define DEFAULT_GPIO_OFFTIME 90 /* Default: 10% on */ + +/* When Srom support present, fields in sromcontrol */ +#define SRC_START 0x80000000 +#define SRC_BUSY 0x80000000 +#define SRC_OPCODE 0x60000000 +#define SRC_OP_READ 0x00000000 +#define SRC_OP_WRITE 0x20000000 +#define SRC_OP_WRDIS 0x40000000 +#define SRC_OP_WREN 0x60000000 +#define SRC_OTPSEL 0x00000010 +#define SRC_LOCK 0x00000008 +#define SRC_SIZE_MASK 0x00000006 +#define SRC_SIZE_1K 0x00000000 +#define SRC_SIZE_4K 0x00000002 +#define SRC_SIZE_16K 0x00000004 +#define SRC_SIZE_SHIFT 1 +#define SRC_PRESENT 0x00000001 + +/* External PA enable mask */ +#define GPIO_CTRL_EPA_EN_MASK 0x40 + +#define DEFAULT_GPIOTIMERVAL \ + ((DEFAULT_GPIO_ONTIME << GPIO_ONTIME_SHIFT) | DEFAULT_GPIO_OFFTIME) + +#define BADIDX (SI_MAXCORES + 1) + +/* Newer chips can access PCI/PCIE and CC core without requiring to change + * PCI BAR0 WIN + */ +#define SI_FAST(si) (((si)->pub.buscoretype == PCIE_CORE_ID) || \ + (((si)->pub.buscoretype == PCI_CORE_ID) && \ + (si)->pub.buscorerev >= 13)) + +#define CCREGS_FAST(si) (((char __iomem *)((si)->curmap) + \ + PCI_16KB0_CCREGS_OFFSET)) + +#define IS_SIM(chippkg) \ + ((chippkg == HDLSIM_PKG_ID) || (chippkg == HWSIM_PKG_ID)) + +/* + * Macros to disable/restore function core(D11, ENET, ILINE20, etc) interrupts + * before after core switching to avoid invalid register accesss inside ISR. + */ +#define INTR_OFF(si, intr_val) \ + if ((si)->intrsoff_fn && \ + (si)->coreid[(si)->curidx] == (si)->dev_coreid) \ + intr_val = (*(si)->intrsoff_fn)((si)->intr_arg) + +#define INTR_RESTORE(si, intr_val) \ + if ((si)->intrsrestore_fn && \ + (si)->coreid[(si)->curidx] == (si)->dev_coreid) \ + (*(si)->intrsrestore_fn)((si)->intr_arg, intr_val) + +#define PCI(si) ((si)->pub.buscoretype == PCI_CORE_ID) +#define PCIE(si) ((si)->pub.buscoretype == PCIE_CORE_ID) + +#define PCI_FORCEHT(si) (PCIE(si) && (si->pub.chip == BCM4716_CHIP_ID)) + +#ifdef BCMDBG +#define SI_MSG(args) printk args +#else +#define SI_MSG(args) +#endif /* BCMDBG */ + +#define GOODCOREADDR(x, b) \ + (((x) >= (b)) && ((x) < ((b) + SI_MAXCORES * SI_CORE_SIZE)) && \ + IS_ALIGNED((x), SI_CORE_SIZE)) + +#define PCIEREGS(si) ((__iomem char *)((si)->curmap) + \ + PCI_16KB0_PCIREGS_OFFSET) + +struct aidmp { + u32 oobselina30; /* 0x000 */ + u32 oobselina74; /* 0x004 */ + u32 PAD[6]; + u32 oobselinb30; /* 0x020 */ + u32 oobselinb74; /* 0x024 */ + u32 PAD[6]; + u32 oobselinc30; /* 0x040 */ + u32 oobselinc74; /* 0x044 */ + u32 PAD[6]; + u32 oobselind30; /* 0x060 */ + u32 oobselind74; /* 0x064 */ + u32 PAD[38]; + u32 oobselouta30; /* 0x100 */ + u32 oobselouta74; /* 0x104 */ + u32 PAD[6]; + u32 oobseloutb30; /* 0x120 */ + u32 oobseloutb74; /* 0x124 */ + u32 PAD[6]; + u32 oobseloutc30; /* 0x140 */ + u32 oobseloutc74; /* 0x144 */ + u32 PAD[6]; + u32 oobseloutd30; /* 0x160 */ + u32 oobseloutd74; /* 0x164 */ + u32 PAD[38]; + u32 oobsynca; /* 0x200 */ + u32 oobseloutaen; /* 0x204 */ + u32 PAD[6]; + u32 oobsyncb; /* 0x220 */ + u32 oobseloutben; /* 0x224 */ + u32 PAD[6]; + u32 oobsyncc; /* 0x240 */ + u32 oobseloutcen; /* 0x244 */ + u32 PAD[6]; + u32 oobsyncd; /* 0x260 */ + u32 oobseloutden; /* 0x264 */ + u32 PAD[38]; + u32 oobaextwidth; /* 0x300 */ + u32 oobainwidth; /* 0x304 */ + u32 oobaoutwidth; /* 0x308 */ + u32 PAD[5]; + u32 oobbextwidth; /* 0x320 */ + u32 oobbinwidth; /* 0x324 */ + u32 oobboutwidth; /* 0x328 */ + u32 PAD[5]; + u32 oobcextwidth; /* 0x340 */ + u32 oobcinwidth; /* 0x344 */ + u32 oobcoutwidth; /* 0x348 */ + u32 PAD[5]; + u32 oobdextwidth; /* 0x360 */ + u32 oobdinwidth; /* 0x364 */ + u32 oobdoutwidth; /* 0x368 */ + u32 PAD[37]; + u32 ioctrlset; /* 0x400 */ + u32 ioctrlclear; /* 0x404 */ + u32 ioctrl; /* 0x408 */ + u32 PAD[61]; + u32 iostatus; /* 0x500 */ + u32 PAD[127]; + u32 ioctrlwidth; /* 0x700 */ + u32 iostatuswidth; /* 0x704 */ + u32 PAD[62]; + u32 resetctrl; /* 0x800 */ + u32 resetstatus; /* 0x804 */ + u32 resetreadid; /* 0x808 */ + u32 resetwriteid; /* 0x80c */ + u32 PAD[60]; + u32 errlogctrl; /* 0x900 */ + u32 errlogdone; /* 0x904 */ + u32 errlogstatus; /* 0x908 */ + u32 errlogaddrlo; /* 0x90c */ + u32 errlogaddrhi; /* 0x910 */ + u32 errlogid; /* 0x914 */ + u32 errloguser; /* 0x918 */ + u32 errlogflags; /* 0x91c */ + u32 PAD[56]; + u32 intstatus; /* 0xa00 */ + u32 PAD[127]; + u32 config; /* 0xe00 */ + u32 PAD[63]; + u32 itcr; /* 0xf00 */ + u32 PAD[3]; + u32 itipooba; /* 0xf10 */ + u32 itipoobb; /* 0xf14 */ + u32 itipoobc; /* 0xf18 */ + u32 itipoobd; /* 0xf1c */ + u32 PAD[4]; + u32 itipoobaout; /* 0xf30 */ + u32 itipoobbout; /* 0xf34 */ + u32 itipoobcout; /* 0xf38 */ + u32 itipoobdout; /* 0xf3c */ + u32 PAD[4]; + u32 itopooba; /* 0xf50 */ + u32 itopoobb; /* 0xf54 */ + u32 itopoobc; /* 0xf58 */ + u32 itopoobd; /* 0xf5c */ + u32 PAD[4]; + u32 itopoobain; /* 0xf70 */ + u32 itopoobbin; /* 0xf74 */ + u32 itopoobcin; /* 0xf78 */ + u32 itopoobdin; /* 0xf7c */ + u32 PAD[4]; + u32 itopreset; /* 0xf90 */ + u32 PAD[15]; + u32 peripherialid4; /* 0xfd0 */ + u32 peripherialid5; /* 0xfd4 */ + u32 peripherialid6; /* 0xfd8 */ + u32 peripherialid7; /* 0xfdc */ + u32 peripherialid0; /* 0xfe0 */ + u32 peripherialid1; /* 0xfe4 */ + u32 peripherialid2; /* 0xfe8 */ + u32 peripherialid3; /* 0xfec */ + u32 componentid0; /* 0xff0 */ + u32 componentid1; /* 0xff4 */ + u32 componentid2; /* 0xff8 */ + u32 componentid3; /* 0xffc */ +}; + +/* EROM parsing */ + +static u32 +get_erom_ent(struct si_pub *sih, u32 __iomem **eromptr, u32 mask, u32 match) +{ + u32 ent; + uint inv = 0, nom = 0; + + while (true) { + ent = R_REG(*eromptr); + (*eromptr)++; + + if (mask == 0) + break; + + if ((ent & ER_VALID) == 0) { + inv++; + continue; + } + + if (ent == (ER_END | ER_VALID)) + break; + + if ((ent & mask) == match) + break; + + nom++; + } + + return ent; +} + +static u32 +get_asd(struct si_pub *sih, u32 __iomem **eromptr, uint sp, uint ad, uint st, + u32 *addrl, u32 *addrh, u32 *sizel, u32 *sizeh) +{ + u32 asd, sz, szd; + + asd = get_erom_ent(sih, eromptr, ER_VALID, ER_VALID); + if (((asd & ER_TAG1) != ER_ADD) || + (((asd & AD_SP_MASK) >> AD_SP_SHIFT) != sp) || + ((asd & AD_ST_MASK) != st)) { + /* This is not what we want, "push" it back */ + (*eromptr)--; + return 0; + } + *addrl = asd & AD_ADDR_MASK; + if (asd & AD_AG32) + *addrh = get_erom_ent(sih, eromptr, 0, 0); + else + *addrh = 0; + *sizeh = 0; + sz = asd & AD_SZ_MASK; + if (sz == AD_SZ_SZD) { + szd = get_erom_ent(sih, eromptr, 0, 0); + *sizel = szd & SD_SZ_MASK; + if (szd & SD_SG32) + *sizeh = get_erom_ent(sih, eromptr, 0, 0); + } else + *sizel = AD_SZ_BASE << (sz >> AD_SZ_SHIFT); + + return asd; +} + +static void ai_hwfixup(struct si_info *sii) +{ +} + +/* parse the enumeration rom to identify all cores */ +static void ai_scan(struct si_pub *sih, struct chipcregs __iomem *cc) +{ + struct si_info *sii = (struct si_info *)sih; + + u32 erombase; + u32 __iomem *eromptr, *eromlim; + void __iomem *regs = cc; + + erombase = R_REG(&cc->eromptr); + + /* Set wrappers address */ + sii->curwrap = (void *)((unsigned long)cc + SI_CORE_SIZE); + + /* Now point the window at the erom */ + pci_write_config_dword(sii->pbus, PCI_BAR0_WIN, erombase); + eromptr = regs; + eromlim = eromptr + (ER_REMAPCONTROL / sizeof(u32)); + + while (eromptr < eromlim) { + u32 cia, cib, cid, mfg, crev, nmw, nsw, nmp, nsp; + u32 mpd, asd, addrl, addrh, sizel, sizeh; + u32 __iomem *base; + uint i, j, idx; + bool br; + + br = false; + + /* Grok a component */ + cia = get_erom_ent(sih, &eromptr, ER_TAG, ER_CI); + if (cia == (ER_END | ER_VALID)) { + /* Found END of erom */ + ai_hwfixup(sii); + return; + } + base = eromptr - 1; + cib = get_erom_ent(sih, &eromptr, 0, 0); + + if ((cib & ER_TAG) != ER_CI) { + /* CIA not followed by CIB */ + goto error; + } + + cid = (cia & CIA_CID_MASK) >> CIA_CID_SHIFT; + mfg = (cia & CIA_MFG_MASK) >> CIA_MFG_SHIFT; + crev = (cib & CIB_REV_MASK) >> CIB_REV_SHIFT; + nmw = (cib & CIB_NMW_MASK) >> CIB_NMW_SHIFT; + nsw = (cib & CIB_NSW_MASK) >> CIB_NSW_SHIFT; + nmp = (cib & CIB_NMP_MASK) >> CIB_NMP_SHIFT; + nsp = (cib & CIB_NSP_MASK) >> CIB_NSP_SHIFT; + + if (((mfg == MFGID_ARM) && (cid == DEF_AI_COMP)) || (nsp == 0)) + continue; + if ((nmw + nsw == 0)) { + /* A component which is not a core */ + if (cid == OOB_ROUTER_CORE_ID) { + asd = get_asd(sih, &eromptr, 0, 0, AD_ST_SLAVE, + &addrl, &addrh, &sizel, &sizeh); + if (asd != 0) + sii->oob_router = addrl; + } + continue; + } + + idx = sii->numcores; +/* sii->eromptr[idx] = base; */ + sii->cia[idx] = cia; + sii->cib[idx] = cib; + sii->coreid[idx] = cid; + + for (i = 0; i < nmp; i++) { + mpd = get_erom_ent(sih, &eromptr, ER_VALID, ER_VALID); + if ((mpd & ER_TAG) != ER_MP) { + /* Not enough MP entries for component */ + goto error; + } + } + + /* First Slave Address Descriptor should be port 0: + * the main register space for the core + */ + asd = + get_asd(sih, &eromptr, 0, 0, AD_ST_SLAVE, &addrl, &addrh, + &sizel, &sizeh); + if (asd == 0) { + /* Try again to see if it is a bridge */ + asd = + get_asd(sih, &eromptr, 0, 0, AD_ST_BRIDGE, &addrl, + &addrh, &sizel, &sizeh); + if (asd != 0) + br = true; + else if ((addrh != 0) || (sizeh != 0) + || (sizel != SI_CORE_SIZE)) { + /* First Slave ASD for core malformed */ + goto error; + } + } + sii->coresba[idx] = addrl; + sii->coresba_size[idx] = sizel; + /* Get any more ASDs in port 0 */ + j = 1; + do { + asd = + get_asd(sih, &eromptr, 0, j, AD_ST_SLAVE, &addrl, + &addrh, &sizel, &sizeh); + if ((asd != 0) && (j == 1) && (sizel == SI_CORE_SIZE)) { + sii->coresba2[idx] = addrl; + sii->coresba2_size[idx] = sizel; + } + j++; + } while (asd != 0); + + /* Go through the ASDs for other slave ports */ + for (i = 1; i < nsp; i++) { + j = 0; + do { + asd = + get_asd(sih, &eromptr, i, j++, AD_ST_SLAVE, + &addrl, &addrh, &sizel, &sizeh); + } while (asd != 0); + if (j == 0) { + /* SP has no address descriptors */ + goto error; + } + } + + /* Now get master wrappers */ + for (i = 0; i < nmw; i++) { + asd = + get_asd(sih, &eromptr, i, 0, AD_ST_MWRAP, &addrl, + &addrh, &sizel, &sizeh); + if (asd == 0) { + /* Missing descriptor for MW */ + goto error; + } + if ((sizeh != 0) || (sizel != SI_CORE_SIZE)) { + /* Master wrapper %d is not 4KB */ + goto error; + } + if (i == 0) + sii->wrapba[idx] = addrl; + } + + /* And finally slave wrappers */ + for (i = 0; i < nsw; i++) { + uint fwp = (nsp == 1) ? 0 : 1; + asd = + get_asd(sih, &eromptr, fwp + i, 0, AD_ST_SWRAP, + &addrl, &addrh, &sizel, &sizeh); + if (asd == 0) { + /* Missing descriptor for SW */ + goto error; + } + if ((sizeh != 0) || (sizel != SI_CORE_SIZE)) { + /* Slave wrapper is not 4KB */ + goto error; + } + if ((nmw == 0) && (i == 0)) + sii->wrapba[idx] = addrl; + } + + /* Don't record bridges */ + if (br) + continue; + + /* Done with core */ + sii->numcores++; + } + + error: + /* Reached end of erom without finding END */ + sii->numcores = 0; + return; +} + +/* + * This function changes the logical "focus" to the indicated core. + * Return the current core's virtual address. Since each core starts with the + * same set of registers (BIST, clock control, etc), the returned address + * contains the first register of this 'common' register block (not to be + * confused with 'common core'). + */ +void __iomem *ai_setcoreidx(struct si_pub *sih, uint coreidx) +{ + struct si_info *sii = (struct si_info *)sih; + u32 addr = sii->coresba[coreidx]; + u32 wrap = sii->wrapba[coreidx]; + + if (coreidx >= sii->numcores) + return NULL; + + /* point bar0 window */ + pci_write_config_dword(sii->pbus, PCI_BAR0_WIN, addr); + /* point bar0 2nd 4KB window */ + pci_write_config_dword(sii->pbus, PCI_BAR0_WIN2, wrap); + sii->curidx = coreidx; + + return sii->curmap; +} + +/* Return the number of address spaces in current core */ +int ai_numaddrspaces(struct si_pub *sih) +{ + return 2; +} + +/* Return the address of the nth address space in the current core */ +u32 ai_addrspace(struct si_pub *sih, uint asidx) +{ + struct si_info *sii; + uint cidx; + + sii = (struct si_info *)sih; + cidx = sii->curidx; + + if (asidx == 0) + return sii->coresba[cidx]; + else if (asidx == 1) + return sii->coresba2[cidx]; + else { + /* Need to parse the erom again to find addr space */ + return 0; + } +} + +/* Return the size of the nth address space in the current core */ +u32 ai_addrspacesize(struct si_pub *sih, uint asidx) +{ + struct si_info *sii; + uint cidx; + + sii = (struct si_info *)sih; + cidx = sii->curidx; + + if (asidx == 0) + return sii->coresba_size[cidx]; + else if (asidx == 1) + return sii->coresba2_size[cidx]; + else { + /* Need to parse the erom again to find addr */ + return 0; + } +} + +uint ai_flag(struct si_pub *sih) +{ + struct si_info *sii; + struct aidmp *ai; + + sii = (struct si_info *)sih; + ai = sii->curwrap; + + return R_REG(&ai->oobselouta30) & 0x1f; +} + +void ai_setint(struct si_pub *sih, int siflag) +{ +} + +uint ai_corevendor(struct si_pub *sih) +{ + struct si_info *sii; + u32 cia; + + sii = (struct si_info *)sih; + cia = sii->cia[sii->curidx]; + return (cia & CIA_MFG_MASK) >> CIA_MFG_SHIFT; +} + +uint ai_corerev(struct si_pub *sih) +{ + struct si_info *sii; + u32 cib; + + sii = (struct si_info *)sih; + cib = sii->cib[sii->curidx]; + return (cib & CIB_REV_MASK) >> CIB_REV_SHIFT; +} + +bool ai_iscoreup(struct si_pub *sih) +{ + struct si_info *sii; + struct aidmp *ai; + + sii = (struct si_info *)sih; + ai = sii->curwrap; + + return (((R_REG(&ai->ioctrl) & (SICF_FGC | SICF_CLOCK_EN)) == + SICF_CLOCK_EN) + && ((R_REG(&ai->resetctrl) & AIRC_RESET) == 0)); +} + +void ai_core_cflags_wo(struct si_pub *sih, u32 mask, u32 val) +{ + struct si_info *sii; + struct aidmp *ai; + u32 w; + + sii = (struct si_info *)sih; + + ai = sii->curwrap; + + if (mask || val) { + w = ((R_REG(&ai->ioctrl) & ~mask) | val); + W_REG(&ai->ioctrl, w); + } +} + +u32 ai_core_cflags(struct si_pub *sih, u32 mask, u32 val) +{ + struct si_info *sii; + struct aidmp *ai; + u32 w; + + sii = (struct si_info *)sih; + ai = sii->curwrap; + + if (mask || val) { + w = ((R_REG(&ai->ioctrl) & ~mask) | val); + W_REG(&ai->ioctrl, w); + } + + return R_REG(&ai->ioctrl); +} + +/* return true if PCIE capability exists in the pci config space */ +static bool ai_ispcie(struct si_info *sii) +{ + u8 cap_ptr; + + cap_ptr = + pcicore_find_pci_capability(sii->pbus, PCI_CAP_ID_EXP, NULL, + NULL); + if (!cap_ptr) + return false; + + return true; +} + +static bool ai_buscore_prep(struct si_info *sii) +{ + /* kludge to enable the clock on the 4306 which lacks a slowclock */ + if (!ai_ispcie(sii)) + ai_clkctl_xtal(&sii->pub, XTAL | PLL, ON); + return true; +} + +u32 ai_core_sflags(struct si_pub *sih, u32 mask, u32 val) +{ + struct si_info *sii; + struct aidmp *ai; + u32 w; + + sii = (struct si_info *)sih; + ai = sii->curwrap; + + if (mask || val) { + w = ((R_REG(&ai->iostatus) & ~mask) | val); + W_REG(&ai->iostatus, w); + } + + return R_REG(&ai->iostatus); +} + +static bool +ai_buscore_setup(struct si_info *sii, u32 savewin, uint *origidx) +{ + bool pci, pcie; + uint i; + uint pciidx, pcieidx, pcirev, pcierev; + struct chipcregs __iomem *cc; + + cc = ai_setcoreidx(&sii->pub, SI_CC_IDX); + + /* get chipcommon rev */ + sii->pub.ccrev = (int)ai_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 */ + + if (sii->pub.ccrev >= 35) + sii->pub.cccaps_ext = R_REG(&cc->capabilities_ext); + + /* 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; + } + + /* 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; + + ai_setcoreidx(&sii->pub, i); + cid = ai_coreid(&sii->pub); + crev = ai_corerev(&sii->pub); + + if (cid == PCI_CORE_ID) { + pciidx = i; + pcirev = crev; + pci = true; + } else if (cid == PCIE_CORE_ID) { + pcieidx = i; + pcierev = crev; + pcie = true; + } + + /* find the core idx before entering this func. */ + if ((savewin && (savewin == sii->coresba[i])) || + (cc == sii->regs[i])) + *origidx = i; + } + + if (pci && pcie) { + if (ai_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; + } + + /* fixup necessary chip/core configurations */ + if (SI_FAST(sii)) { + if (!sii->pch) { + sii->pch = pcicore_init(&sii->pub, sii->pbus, + (__iomem void *)PCIEREGS(sii)); + if (sii->pch == NULL) + return false; + } + } + if (ai_pci_fixcfg(&sii->pub)) { + /* si_doattach: si_pci_fixcfg failed */ + return false; + } + + /* return to the original core */ + ai_setcoreidx(&sii->pub, *origidx); + + return true; +} + +/* + * get boardtype and boardrev + */ +static __used void ai_nvram_process(struct si_info *sii) +{ + uint w = 0; + + /* do a pci config read to get subsystem id and subvendor id */ + pci_read_config_dword(sii->pbus, PCI_SUBSYSTEM_VENDOR_ID, &w); + + sii->pub.boardvendor = w & 0xffff; + sii->pub.boardtype = (w >> 16) & 0xffff; + sii->pub.boardflags = getintvar(&sii->pub, BRCMS_SROM_BOARDFLAGS); +} + +static struct si_info *ai_doattach(struct si_info *sii, + void __iomem *regs, struct pci_dev *pbus) +{ + struct si_pub *sih = &sii->pub; + u32 w, savewin; + struct chipcregs __iomem *cc; + uint socitype; + uint origidx; + + memset((unsigned char *) sii, 0, sizeof(struct si_info)); + + savewin = 0; + + sih->buscoreidx = BADIDX; + + sii->curmap = regs; + sii->pbus = pbus; + + /* find Chipcommon address */ + 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 = (struct chipcregs __iomem *) regs; + + /* bus/core/clk setup for register access */ + if (!ai_buscore_prep(sii)) + 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); + 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 = false; + + /* scan for cores */ + if (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, cc); + } else { + /* Found chip of unknown type */ + return NULL; + } + /* no cores found, bail out */ + if (sii->numcores == 0) + return NULL; + + /* bus/core/clk setup */ + origidx = SI_CC_IDX; + if (!ai_buscore_setup(sii, savewin, &origidx)) + goto exit; + + /* Init nvram from sprom/otp if they exist */ + if (srom_var_init(&sii->pub, cc)) + goto exit; + + ai_nvram_process(sii); + + /* === NVRAM, clock is ready === */ + cc = (struct chipcregs __iomem *) ai_setcore(sih, CC_CORE_ID, 0); + W_REG(&cc->gpiopullup, 0); + W_REG(&cc->gpiopulldown, 0); + ai_setcoreidx(sih, origidx); + + /* PMU specific initializations */ + if (sih->cccaps & CC_CAP_PMU) { + u32 xtalfreq; + si_pmu_init(sih); + si_pmu_chip_init(sih); + + 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(sih, BRCMS_SROM_LEDDC); + if (w == 0) + w = DEFAULT_GPIOTIMERVAL; + ai_corereg(sih, SI_CC_IDX, offsetof(struct chipcregs, gpiotimerval), + ~0, w); + + if (PCIE(sii)) + pcicore_attach(sii->pch, SI_DOATTACH); + + if (sih->chip == BCM43224_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")); + ai_corereg(sih, SI_CC_IDX, + offsetof(struct chipcregs, 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); + } + + return sii; + + exit: + if (sii->pch) + pcicore_deinit(sii->pch); + sii->pch = NULL; + + return NULL; +} + +/* + * Allocate a si handle. + * devid - pci device id (used to determine chip#) + * osh - opaque OS handle + * regs - virtual address of initial core registers + */ +struct si_pub * +ai_attach(void __iomem *regs, struct pci_dev *sdh) +{ + struct si_info *sii; + + /* alloc struct si_info */ + sii = kmalloc(sizeof(struct si_info), GFP_ATOMIC); + if (sii == NULL) + return NULL; + + if (ai_doattach(sii, regs, sdh) == NULL) { + kfree(sii); + return NULL; + } + + return (struct si_pub *) sii; +} + +/* may be called with core in reset */ +void ai_detach(struct si_pub *sih) +{ + struct si_info *sii; + + struct si_pub *si_local = NULL; + memcpy(&si_local, &sih, sizeof(struct si_pub **)); + + sii = (struct si_info *)sih; + + if (sii == NULL) + return; + + if (sii->pch) + pcicore_deinit(sii->pch); + sii->pch = NULL; + + srom_free_vars(sih); + kfree(sii); +} + +/* register driver interrupt disabling and restoring callback functions */ +void +ai_register_intr_callback(struct si_pub *sih, void *intrsoff_fn, + void *intrsrestore_fn, + void *intrsenabled_fn, void *intr_arg) +{ + struct si_info *sii; + + sii = (struct si_info *)sih; + sii->intr_arg = intr_arg; + sii->intrsoff_fn = (u32 (*)(void *)) intrsoff_fn; + sii->intrsrestore_fn = (void (*) (void *, u32)) intrsrestore_fn; + sii->intrsenabled_fn = (bool (*)(void *)) 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 ai_deregister_intr_callback(struct si_pub *sih) +{ + struct si_info *sii; + + sii = (struct si_info *)sih; + sii->intrsoff_fn = NULL; +} + +uint ai_coreid(struct si_pub *sih) +{ + struct si_info *sii; + + sii = (struct si_info *)sih; + return sii->coreid[sii->curidx]; +} + +uint ai_coreidx(struct si_pub *sih) +{ + struct si_info *sii; + + sii = (struct si_info *)sih; + return sii->curidx; +} + +bool ai_backplane64(struct si_pub *sih) +{ + return (sih->cccaps & CC_CAP_BKPLN64) != 0; +} + +/* return index of coreid or BADIDX if not found */ +uint ai_findcoreidx(struct si_pub *sih, uint coreid, uint coreunit) +{ + struct si_info *sii; + uint found; + uint i; + + sii = (struct 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 __iomem *ai_setcore(struct si_pub *sih, uint coreid, uint coreunit) +{ + uint idx; + + idx = ai_findcoreidx(sih, coreid, coreunit); + if (idx >= SI_MAXCORES) + return NULL; + + return ai_setcoreidx(sih, idx); +} + +/* Turn off interrupt as required by ai_setcore, before switch core */ +void __iomem *ai_switch_core(struct si_pub *sih, uint coreid, uint *origidx, + uint *intr_val) +{ + void __iomem *cc; + struct si_info *sii; + + sii = (struct 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 CCREGS_FAST(sii); + else if (coreid == sih->buscoretype) + return PCIEREGS(sii); + } + INTR_OFF(sii, *intr_val); + *origidx = sii->curidx; + cc = ai_setcore(sih, coreid, 0); + return cc; +} + +/* restore coreidx and restore interrupt */ +void ai_restore_core(struct si_pub *sih, uint coreid, uint intr_val) +{ + struct si_info *sii; + + sii = (struct si_info *)sih; + if (SI_FAST(sii) + && ((coreid == CC_CORE_ID) || (coreid == sih->buscoretype))) + return; + + ai_setcoreidx(sih, coreid); + INTR_RESTORE(sii, intr_val); +} + +void ai_write_wrapperreg(struct si_pub *sih, u32 offset, u32 val) +{ + struct si_info *sii = (struct si_info *)sih; + u32 *w = (u32 *) sii->curwrap; + W_REG(w + (offset / 4), val); + return; +} + +/* + * Switch to 'coreidx', issue a single arbitrary 32bit register mask&set + * operation, switch back to the original core, and return the new value. + * + * When using the silicon backplane, no fiddling with interrupts or core + * switches is needed. + * + * Also, when using pci/pcie, we can optimize away the core switching for pci + * registers and (on newer pci cores) chipcommon registers. + */ +uint ai_corereg(struct si_pub *sih, uint coreidx, uint regoff, uint mask, + uint val) +{ + uint origidx = 0; + u32 __iomem *r = NULL; + uint w; + uint intr_val = 0; + bool fast = false; + struct si_info *sii; + + sii = (struct si_info *)sih; + + if (coreidx >= SI_MAXCORES) + return 0; + + /* + * If pci/pcie, we can get at pci/pcie regs + * and on newer cores to chipc + */ + if ((sii->coreid[coreidx] == CC_CORE_ID) && SI_FAST(sii)) { + /* Chipc registers are mapped at 12KB */ + fast = true; + r = (u32 __iomem *)((__iomem char *)sii->curmap + + PCI_16KB0_CCREGS_OFFSET + regoff); + } else if (sii->pub.buscoreidx == coreidx) { + /* + * pci registers are at either in the last 2KB of + * an 8KB window or, in pcie and pci rev 13 at 8KB + */ + fast = true; + if (SI_FAST(sii)) + r = (u32 __iomem *)((__iomem char *)sii->curmap + + PCI_16KB0_PCIREGS_OFFSET + regoff); + else + r = (u32 __iomem *)((__iomem char *)sii->curmap + + ((regoff >= SBCONFIGOFF) ? + PCI_BAR0_PCISBR_OFFSET : + PCI_BAR0_PCIREGS_OFFSET) + regoff); + } + + if (!fast) { + INTR_OFF(sii, intr_val); + + /* save current core index */ + origidx = ai_coreidx(&sii->pub); + + /* switch core */ + r = (u32 __iomem *) ((unsigned char __iomem *) + ai_setcoreidx(&sii->pub, coreidx) + regoff); + } + + /* mask and set */ + if (mask || val) { + w = (R_REG(r) & ~mask) | val; + W_REG(r, w); + } + + /* readback */ + w = R_REG(r); + + if (!fast) { + /* restore core index */ + if (origidx != coreidx) + ai_setcoreidx(&sii->pub, origidx); + + INTR_RESTORE(sii, intr_val); + } + + return w; +} + +void ai_core_disable(struct si_pub *sih, u32 bits) +{ + struct si_info *sii; + u32 dummy; + struct aidmp *ai; + + sii = (struct si_info *)sih; + + ai = sii->curwrap; + + /* if core is already in reset, just return */ + if (R_REG(&ai->resetctrl) & AIRC_RESET) + return; + + W_REG(&ai->ioctrl, bits); + dummy = R_REG(&ai->ioctrl); + udelay(10); + + W_REG(&ai->resetctrl, AIRC_RESET); + udelay(1); +} + +/* reset and re-enable a core + * inputs: + * bits - core specific bits that are set during and after reset sequence + * resetbits - core specific bits that are set only during reset sequence + */ +void ai_core_reset(struct si_pub *sih, u32 bits, u32 resetbits) +{ + struct si_info *sii; + struct aidmp *ai; + u32 dummy; + + sii = (struct si_info *)sih; + ai = sii->curwrap; + + /* + * Must do the disable sequence first to work + * for arbitrary current core state. + */ + ai_core_disable(sih, (bits | resetbits)); + + /* + * Now do the initialization sequence. + */ + W_REG(&ai->ioctrl, (bits | SICF_FGC | SICF_CLOCK_EN)); + dummy = R_REG(&ai->ioctrl); + W_REG(&ai->resetctrl, 0); + udelay(1); + + W_REG(&ai->ioctrl, (bits | SICF_CLOCK_EN)); + dummy = R_REG(&ai->ioctrl); + udelay(1); +} + +/* return the slow clock source - LPO, XTAL, or PCI */ +static uint ai_slowclk_src(struct si_info *sii) +{ + struct chipcregs __iomem *cc; + u32 val; + + if (sii->pub.ccrev < 6) { + 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 = (struct chipcregs __iomem *) + ai_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 +* precondition: we've established the chip has dynamic clk control +*/ +static uint ai_slowclk_freq(struct si_info *sii, bool max_freq, + struct chipcregs __iomem *cc) +{ + u32 slowclk; + uint div; + + slowclk = ai_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 { + /* 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 +ai_clkctl_setdelay(struct si_info *sii, struct chipcregs __iomem *cc) +{ + 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 = ai_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 = + ai_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 ai_clkctl_init(struct si_pub *sih) +{ + struct si_info *sii; + uint origidx = 0; + struct chipcregs __iomem *cc; + bool fast; + + if (!(sih->cccaps & CC_CAP_PWR_CTL)) + return; + + sii = (struct si_info *)sih; + fast = SI_FAST(sii); + if (!fast) { + origidx = sii->curidx; + cc = (struct chipcregs __iomem *) + ai_setcore(sih, CC_CORE_ID, 0); + if (cc == NULL) + return; + } else { + cc = (struct chipcregs __iomem *) CCREGS_FAST(sii); + if (cc == NULL) + return; + } + + /* 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)); + + ai_clkctl_setdelay(sii, cc); + + if (!fast) + ai_setcoreidx(sih, origidx); +} + +/* + * return the value suitable for writing to the + * dot11 core FAST_PWRUP_DELAY register + */ +u16 ai_clkctl_fast_pwrup_delay(struct si_pub *sih) +{ + struct si_info *sii; + uint origidx = 0; + struct chipcregs __iomem *cc; + uint slowminfreq; + u16 fpdelay; + uint intr_val = 0; + bool fast; + + sii = (struct si_info *)sih; + if (sih->cccaps & CC_CAP_PMU) { + INTR_OFF(sii, intr_val); + fpdelay = si_pmu_fast_pwrup_delay(sih); + INTR_RESTORE(sii, intr_val); + return fpdelay; + } + + if (!(sih->cccaps & CC_CAP_PWR_CTL)) + return 0; + + fast = SI_FAST(sii); + fpdelay = 0; + if (!fast) { + origidx = sii->curidx; + INTR_OFF(sii, intr_val); + cc = (struct chipcregs __iomem *) + ai_setcore(sih, CC_CORE_ID, 0); + if (cc == NULL) + goto done; + } else { + cc = (struct chipcregs __iomem *) CCREGS_FAST(sii); + if (cc == NULL) + goto done; + } + + slowminfreq = ai_slowclk_freq(sii, false, cc); + fpdelay = (((R_REG(&cc->pll_on_delay) + 2) * 1000000) + + (slowminfreq - 1)) / slowminfreq; + + done: + if (!fast) { + ai_setcoreidx(sih, origidx); + INTR_RESTORE(sii, intr_val); + } + return fpdelay; +} + +/* turn primary xtal and/or pll off/on */ +int ai_clkctl_xtal(struct si_pub *sih, uint what, bool on) +{ + struct si_info *sii; + u32 in, out, outen; + + sii = (struct si_info *)sih; + + /* 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); + } + + return 0; +} + +/* clk control mechanism through chipcommon, no policy checking */ +static bool _ai_clkctl_cc(struct si_info *sii, uint mode) +{ + uint origidx = 0; + struct chipcregs __iomem *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; + + if (!fast) { + INTR_OFF(sii, intr_val); + origidx = sii->curidx; + cc = (struct chipcregs __iomem *) + ai_setcore(&sii->pub, CC_CORE_ID, 0); + } else { + cc = (struct chipcregs __iomem *) CCREGS_FAST(sii); + if (cc == NULL) + goto done; + } + + if (!(sii->pub.cccaps & CC_CAP_PWR_CTL) && (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.. + */ + ai_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 (sii->pub.cccaps & CC_CAP_PMU) { + u32 htavail = CCS_HTAVAIL; + SPINWAIT(((R_REG(&cc->clk_ctl_st) & htavail) + == 0), PMU_MAX_TRANSITION_DLY); + } 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) + ai_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: + break; + } + + done: + if (!fast) { + ai_setcoreidx(&sii->pub, origidx); + INTR_RESTORE(sii, intr_val); + } + return mode == CLK_FAST; +} + +/* + * 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 ai_clkctl_cc(struct si_pub *sih, uint mode) +{ + struct si_info *sii; + + sii = (struct 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 _ai_clkctl_cc(sii, mode); +} + +/* Build device path */ +int ai_devpath(struct si_pub *sih, char *path, int size) +{ + int slen; + + if (!path || size <= 0) + return -1; + + slen = snprintf(path, (size_t) size, "pci/%u/%u/", + ((struct si_info *)sih)->pbus->bus->number, + PCI_SLOT(((struct pci_dev *) + (((struct si_info *)(sih))->pbus))->devfn)); + + if (slen < 0 || slen >= size) { + path[0] = '\0'; + return -1; + } + + return 0; +} + +void ai_pci_up(struct si_pub *sih) +{ + struct si_info *sii; + + sii = (struct si_info *)sih; + + if (PCI_FORCEHT(sii)) + _ai_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 ai_pci_sleep(struct si_pub *sih) +{ + struct si_info *sii; + + sii = (struct si_info *)sih; + + pcicore_sleep(sii->pch); +} + +/* Unconfigure and/or apply various WARs when going down */ +void ai_pci_down(struct si_pub *sih) +{ + struct si_info *sii; + + sii = (struct si_info *)sih; + + /* release FORCEHT since chip is going to "down" state */ + if (PCI_FORCEHT(sii)) + _ai_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 ai_pci_setup(struct si_pub *sih, uint coremask) +{ + struct si_info *sii; + struct sbpciregs __iomem *regs = NULL; + u32 siflag = 0, w; + uint idx = 0; + + sii = (struct si_info *)sih; + + if (PCI(sii)) { + /* get current core index */ + idx = sii->curidx; + + /* we interrupt on this backplane flag number */ + siflag = ai_flag(sih); + + /* switch over to pci core */ + regs = ai_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 */ + ai_setint(sih, siflag); + } + + if (PCI(sii)) { + pcicore_pci_setup(sii->pch, regs); + + /* switch back to previous core */ + ai_setcoreidx(sih, idx); + } +} + +/* + * Fixup SROMless PCI device's configuration. + * The current core may be changed upon return. + */ +int ai_pci_fixcfg(struct si_pub *sih) +{ + uint origidx; + void __iomem *regs = NULL; + struct si_info *sii = (struct si_info *)sih; + + /* Fixup PI in SROM shadow area to enable the correct PCI core access */ + /* save the current index */ + origidx = ai_coreidx(&sii->pub); + + /* check 'pi' is correct and fix it if not */ + regs = ai_setcore(&sii->pub, sii->pub.buscoretype, 0); + if (sii->pub.buscoretype == PCIE_CORE_ID) + pcicore_fixcfg_pcie(sii->pch, + (struct sbpcieregs __iomem *)regs); + else if (sii->pub.buscoretype == PCI_CORE_ID) + pcicore_fixcfg_pci(sii->pch, (struct sbpciregs __iomem *)regs); + + /* restore the original index */ + ai_setcoreidx(&sii->pub, origidx); + + pcicore_hwup(sii->pch); + return 0; +} + +/* mask&set gpiocontrol bits */ +u32 ai_gpiocontrol(struct si_pub *sih, u32 mask, u32 val, u8 priority) +{ + uint regoff; + + regoff = offsetof(struct chipcregs, gpiocontrol); + return ai_corereg(sih, SI_CC_IDX, regoff, mask, val); +} + +void ai_chipcontrl_epa4331(struct si_pub *sih, bool on) +{ + struct si_info *sii; + struct chipcregs __iomem *cc; + uint origidx; + u32 val; + + sii = (struct si_info *)sih; + origidx = ai_coreidx(sih); + + cc = (struct chipcregs __iomem *) ai_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); + } + + ai_setcoreidx(sih, origidx); +} + +/* Enable BT-COEX & Ex-PA for 4313 */ +void ai_epa_4313war(struct si_pub *sih) +{ + struct si_info *sii; + struct chipcregs __iomem *cc; + uint origidx; + + sii = (struct si_info *)sih; + origidx = ai_coreidx(sih); + + cc = ai_setcore(sih, CC_CORE_ID, 0); + + /* EPA Fix */ + W_REG(&cc->gpiocontrol, + R_REG(&cc->gpiocontrol) | GPIO_CTRL_EPA_EN_MASK); + + ai_setcoreidx(sih, origidx); +} + +/* check if the device is removed */ +bool ai_deviceremoved(struct si_pub *sih) +{ + u32 w; + struct si_info *sii; + + sii = (struct si_info *)sih; + + pci_read_config_dword(sii->pbus, PCI_VENDOR_ID, &w); + if ((w & 0xFFFF) != PCI_VENDOR_ID_BROADCOM) + return true; + + return false; +} + +bool ai_is_sprom_available(struct si_pub *sih) +{ + if (sih->ccrev >= 31) { + struct si_info *sii; + uint origidx; + struct chipcregs __iomem *cc; + u32 sromctrl; + + if ((sih->cccaps & CC_CAP_SROM) == 0) + return false; + + sii = (struct si_info *)sih; + origidx = sii->curidx; + cc = ai_setcoreidx(sih, SI_CC_IDX); + sromctrl = R_REG(&cc->sromcontrol); + ai_setcoreidx(sih, origidx); + return sromctrl & SRC_PRESENT; + } + + switch (sih->chip) { + case BCM4313_CHIP_ID: + return (sih->chipst & CST4313_SPROM_PRESENT) != 0; + default: + return true; + } +} + +bool ai_is_otp_disabled(struct si_pub *sih) +{ + switch (sih->chip) { + 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: + default: + return false; + } +} |