Merge branch 'master' into for-next

Sync with Linus tree to have 157550ff ("mtd: add GPMI-NAND driver
in the config and Makefile") as I have patch depending on that one.

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 00000000000..025fa0eb6f4
--- /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;
+	}
+}