cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/broadcom/brcm80211/brcmsmac/aiutils.c

/*
 * 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
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/delay.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 "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)


#define	IS_SIM(chippkg)	\
	((chippkg == HDLSIM_PKG_ID) || (chippkg == HWSIM_PKG_ID))


#define	GOODCOREADDR(x, b) \
	(((x) >= (b)) && ((x) < ((b) + SI_MAXCORES * SI_CORE_SIZE)) && \
                IS_ALIGNED((x), SI_CORE_SIZE))


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 */
};


static bool ai_buscore_setup(struct si_info *sii, struct bcma_device *cc) { /* no cores found, bail out */ if (cc->bus->nr_cores == 0) return false; /* get chipcommon rev */ sii->pub.ccrev = cc->id.rev; /* get chipcommon chipstatus */ sii->chipst = bcma_read32(cc, CHIPCREGOFFS(chipstatus)); /* get chipcommon capabilites */ sii->pub.cccaps = bcma_read32(cc, CHIPCREGOFFS(capabilities)); /* get pmu rev and caps */ if (ai_get_cccaps(&sii->pub) & CC_CAP_PMU) { sii->pub.pmucaps = bcma_read32(cc, CHIPCREGOFFS(pmucapabilities)); sii->pub.pmurev = sii->pub.pmucaps & PCAP_REV_MASK; } return true; }

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static struct si_info *ai_doattach(struct si_info *sii, struct bcma_bus *pbus) { struct si_pub *sih = &sii->pub; struct bcma_device *cc; sii->icbus = pbus; sii->pcibus = pbus->host_pci; /* switch to Chipcommon core */ cc = pbus->drv_cc.core; sih->chip = pbus->chipinfo.id; sih->chiprev = pbus->chipinfo.rev; sih->chippkg = pbus->chipinfo.pkg; sih->boardvendor = pbus->boardinfo.vendor; sih->boardtype = pbus->boardinfo.type; if (!ai_buscore_setup(sii, cc)) goto exit; /* === NVRAM, clock is ready === */ bcma_write32(cc, CHIPCREGOFFS(gpiopullup), 0); bcma_write32(cc, CHIPCREGOFFS(gpiopulldown), 0); /* PMU specific initializations */ if (ai_get_cccaps(sih) & CC_CAP_PMU) { (void)si_pmu_measure_alpclk(sih); } return sii; exit: return NULL; }

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/* * Allocate a si handle and do the attach. */
struct si_pub * ai_attach(struct bcma_bus *pbus) { struct si_info *sii; /* alloc struct si_info */ sii = kzalloc(sizeof(struct si_info), GFP_ATOMIC); if (sii == NULL) return NULL; if (ai_doattach(sii, pbus) == NULL) { kfree(sii); return NULL; } return (struct si_pub *) sii; }

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/* may be called with core in reset */
void ai_detach(struct si_pub *sih) { struct si_info *sii; sii = container_of(sih, struct si_info, pub); if (sii == NULL) return; kfree(sii); }

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/* * read/modify chipcommon core register. */
uint ai_cc_reg(struct si_pub *sih, uint regoff, u32 mask, u32 val) { struct bcma_device *cc; u32 w; struct si_info *sii; sii = container_of(sih, struct si_info, pub); cc = sii->icbus->drv_cc.core; /* mask and set */ if (mask || val) bcma_maskset32(cc, regoff, ~mask, val); /* readback */ w = bcma_read32(cc, regoff); return w; }

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/* return the slow clock source - LPO, XTAL, or PCI */
static uint ai_slowclk_src(struct si_pub *sih, struct bcma_device *cc) { return SCC_SS_XTAL; }

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/* * 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_pub *sih, bool max_freq, struct bcma_device *cc) { uint div; /* Chipc rev 10 is InstaClock */ div = bcma_read32(cc, CHIPCREGOFFS(system_clk_ctl)); div = 4 * ((div >> SYCC_CD_SHIFT) + 1); return max_freq ? XTALMAXFREQ : (XTALMINFREQ / div); }

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static void ai_clkctl_setdelay(struct si_pub *sih, struct bcma_device *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(sih, cc); 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(sih, false, cc); pll_on_delay = ((slowmaxfreq * pll_delay) + 999999) / 1000000; fref_sel_delay = ((slowmaxfreq * FREF_DELAY) + 999999) / 1000000; bcma_write32(cc, CHIPCREGOFFS(pll_on_delay), pll_on_delay); bcma_write32(cc, CHIPCREGOFFS(fref_sel_delay), fref_sel_delay); }

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Total116100.00%2100.00%

/* initialize power control delay registers */
void ai_clkctl_init(struct si_pub *sih) { struct si_info *sii = container_of(sih, struct si_info, pub); struct bcma_device *cc; if (!(ai_get_cccaps(sih) & CC_CAP_PWR_CTL)) return; cc = sii->icbus->drv_cc.core; if (cc == NULL) return; /* set all Instaclk chip ILP to 1 MHz */ bcma_maskset32(cc, CHIPCREGOFFS(system_clk_ctl), SYCC_CD_MASK, (ILP_DIV_1MHZ << SYCC_CD_SHIFT)); ai_clkctl_setdelay(sih, cc); }

Contributors

PersonTokensPropCommitsCommitProp
Arend Van Spriel6474.42%375.00%
Hauke Mehrtens2225.58%125.00%
Total86100.00%4100.00%

/* * 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; struct bcma_device *cc; uint slowminfreq; u16 fpdelay; sii = container_of(sih, struct si_info, pub); if (ai_get_cccaps(sih) & CC_CAP_PMU) { fpdelay = si_pmu_fast_pwrup_delay(sih); return fpdelay; } if (!(ai_get_cccaps(sih) & CC_CAP_PWR_CTL)) return 0; fpdelay = 0; cc = sii->icbus->drv_cc.core; if (cc) { slowminfreq = ai_slowclk_freq(sih, false, cc); fpdelay = (((bcma_read32(cc, CHIPCREGOFFS(pll_on_delay)) + 2) * 1000000) + (slowminfreq - 1)) / slowminfreq; } return fpdelay; }

Contributors

PersonTokensPropCommitsCommitProp
Arend Van Spriel12489.86%466.67%
Hauke Mehrtens1410.14%233.33%
Total138100.00%6100.00%

/* * 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, enum bcma_clkmode mode) { struct si_info *sii; struct bcma_device *cc; sii = container_of(sih, struct si_info, pub); cc = sii->icbus->drv_cc.core; bcma_core_set_clockmode(cc, mode); return mode == BCMA_CLKMODE_FAST; }

Contributors

PersonTokensPropCommitsCommitProp
Hauke Mehrtens3153.45%375.00%
Arend Van Spriel2746.55%125.00%
Total58100.00%4100.00%

/* Enable BT-COEX & Ex-PA for 4313 */
void ai_epa_4313war(struct si_pub *sih) { struct si_info *sii = container_of(sih, struct si_info, pub); struct bcma_device *cc; cc = sii->icbus->drv_cc.core; /* EPA Fix */ bcma_set32(cc, CHIPCREGOFFS(gpiocontrol), GPIO_CTRL_EPA_EN_MASK); }

Contributors

PersonTokensPropCommitsCommitProp
Arend Van Spriel3158.49%266.67%
Hauke Mehrtens2241.51%133.33%
Total53100.00%3100.00%

/* check if the device is removed */
bool ai_deviceremoved(struct si_pub *sih) { u32 w = 0; struct si_info *sii; sii = container_of(sih, struct si_info, pub); if (sii->icbus->hosttype != BCMA_HOSTTYPE_PCI) return false; pci_read_config_dword(sii->pcibus, PCI_VENDOR_ID, &w); if ((w & 0xFFFF) != PCI_VENDOR_ID_BROADCOM) return true; return false; }

Contributors

PersonTokensPropCommitsCommitProp
Arend Van Spriel5372.60%360.00%
Hauke Mehrtens2027.40%240.00%
Total73100.00%5100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Arend Van Spriel232493.37%1466.67%
Hauke Mehrtens1576.31%523.81%
Joe Perches70.28%14.76%
Larry Finger10.04%14.76%
Total2489100.00%21100.00%
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