--- /dev/null
+/*
+ * 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;
+}
Code Review / kvmfornfv.git / blobdiff