/*
* 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;
}