Fixed MTP to work with TWRP

drivers/net/wireless/brcm80211/brcmsmac/aiutils.c

@@ -0,0 +1,710 @@
+/*
+ * 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;
+}
+
+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;
+}
+
+/*
+ * 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;
+}
+
+/* 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);
+}
+
+/*
+ * 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;
+}
+
+/* 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;
+}
+
+/*
+* 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);
+}
+
+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);
+}
+
+/* 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);
+}
+
+/*
+ * 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;
+}
+
+/*
+ *  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;
+}
+
+/* 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);
+}
+
+/* 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;
+}