230 lines
6.6 KiB
C
230 lines
6.6 KiB
C
/*
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* Copyright (c) 2011 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _BRCM_AIUTILS_H_
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#define _BRCM_AIUTILS_H_
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#include <linux/bcma/bcma.h>
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#include "types.h"
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/*
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* SOC Interconnect Address Map.
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* All regions may not exist on all chips.
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*/
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/* each core gets 4Kbytes for registers */
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#define SI_CORE_SIZE 0x1000
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/*
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* Max cores (this is arbitrary, for software
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* convenience and could be changed if we
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* make any larger chips
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*/
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#define SI_MAXCORES 16
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/* Client Mode sb2pcitranslation2 size in bytes */
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#define SI_PCI_DMA_SZ 0x40000000
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/* PCIE Client Mode sb2pcitranslation2 (2 ZettaBytes), high 32 bits */
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#define SI_PCIE_DMA_H32 0x80000000
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/* chipcommon being the first core: */
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#define SI_CC_IDX 0
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/* SOC Interconnect types (aka chip types) */
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#define SOCI_AI 1
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/* A register that is common to all cores to
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* communicate w/PMU regarding clock control.
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*/
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#define SI_CLK_CTL_ST 0x1e0 /* clock control and status */
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/* clk_ctl_st register */
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#define CCS_FORCEALP 0x00000001 /* force ALP request */
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#define CCS_FORCEHT 0x00000002 /* force HT request */
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#define CCS_FORCEILP 0x00000004 /* force ILP request */
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#define CCS_ALPAREQ 0x00000008 /* ALP Avail Request */
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#define CCS_HTAREQ 0x00000010 /* HT Avail Request */
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#define CCS_FORCEHWREQOFF 0x00000020 /* Force HW Clock Request Off */
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#define CCS_ERSRC_REQ_MASK 0x00000700 /* external resource requests */
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#define CCS_ERSRC_REQ_SHIFT 8
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#define CCS_ALPAVAIL 0x00010000 /* ALP is available */
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#define CCS_HTAVAIL 0x00020000 /* HT is available */
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#define CCS_BP_ON_APL 0x00040000 /* RO: running on ALP clock */
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#define CCS_BP_ON_HT 0x00080000 /* RO: running on HT clock */
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#define CCS_ERSRC_STS_MASK 0x07000000 /* external resource status */
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#define CCS_ERSRC_STS_SHIFT 24
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/* HT avail in chipc and pcmcia on 4328a0 */
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#define CCS0_HTAVAIL 0x00010000
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/* ALP avail in chipc and pcmcia on 4328a0 */
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#define CCS0_ALPAVAIL 0x00020000
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/* Not really related to SOC Interconnect, but a couple of software
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* conventions for the use the flash space:
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*/
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/* Minumum amount of flash we support */
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#define FLASH_MIN 0x00020000 /* Minimum flash size */
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#define CC_SROM_OTP 0x800 /* SROM/OTP address space */
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/* gpiotimerval */
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#define GPIO_ONTIME_SHIFT 16
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/* Fields in clkdiv */
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#define CLKD_OTP 0x000f0000
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#define CLKD_OTP_SHIFT 16
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/* dynamic clock control defines */
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#define LPOMINFREQ 25000 /* low power oscillator min */
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#define LPOMAXFREQ 43000 /* low power oscillator max */
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#define XTALMINFREQ 19800000 /* 20 MHz - 1% */
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#define XTALMAXFREQ 20200000 /* 20 MHz + 1% */
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#define PCIMINFREQ 25000000 /* 25 MHz */
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#define PCIMAXFREQ 34000000 /* 33 MHz + fudge */
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#define ILP_DIV_5MHZ 0 /* ILP = 5 MHz */
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#define ILP_DIV_1MHZ 4 /* ILP = 1 MHz */
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/* clkctl xtal what flags */
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#define XTAL 0x1 /* primary crystal oscillator (2050) */
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#define PLL 0x2 /* main chip pll */
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/* GPIO usage priorities */
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#define GPIO_DRV_PRIORITY 0 /* Driver */
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#define GPIO_APP_PRIORITY 1 /* Application */
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#define GPIO_HI_PRIORITY 2 /* Highest priority. Ignore GPIO
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* reservation
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*/
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/* GPIO pull up/down */
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#define GPIO_PULLUP 0
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#define GPIO_PULLDN 1
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/* GPIO event regtype */
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#define GPIO_REGEVT 0 /* GPIO register event */
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#define GPIO_REGEVT_INTMSK 1 /* GPIO register event int mask */
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#define GPIO_REGEVT_INTPOL 2 /* GPIO register event int polarity */
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/* device path */
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#define SI_DEVPATH_BUFSZ 16 /* min buffer size in bytes */
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/* SI routine enumeration: to be used by update function with multiple hooks */
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#define SI_DOATTACH 1
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#define SI_PCIDOWN 2
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#define SI_PCIUP 3
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/*
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* Data structure to export all chip specific common variables
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* public (read-only) portion of aiutils handle returned by si_attach()
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*/
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struct si_pub {
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int ccrev; /* chip common core rev */
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u32 cccaps; /* chip common capabilities */
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int pmurev; /* pmu core rev */
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u32 pmucaps; /* pmu capabilities */
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uint boardtype; /* board type */
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uint boardvendor; /* board vendor */
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uint chip; /* chip number */
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uint chiprev; /* chip revision */
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uint chippkg; /* chip package option */
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};
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struct pci_dev;
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struct gpioh_item {
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void *arg;
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bool level;
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void (*handler) (u32 stat, void *arg);
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u32 event;
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struct gpioh_item *next;
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};
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/* misc si info needed by some of the routines */
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struct si_info {
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struct si_pub pub; /* back plane public state (must be first) */
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struct bcma_bus *icbus; /* handle to soc interconnect bus */
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struct pci_dev *pcibus; /* handle to pci bus */
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u32 chipst; /* chip status */
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};
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/*
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* Many of the routines below take an 'sih' handle as their first arg.
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* Allocate this by calling si_attach(). Free it by calling si_detach().
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* At any one time, the sih is logically focused on one particular si core
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* (the "current core").
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* Use si_setcore() or si_setcoreidx() to change the association to another core
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*/
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/* AMBA Interconnect exported externs */
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u32 ai_core_cflags(struct bcma_device *core, u32 mask, u32 val);
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/* === exported functions === */
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struct si_pub *ai_attach(struct bcma_bus *pbus);
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void ai_detach(struct si_pub *sih);
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uint ai_cc_reg(struct si_pub *sih, uint regoff, u32 mask, u32 val);
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void ai_clkctl_init(struct si_pub *sih);
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u16 ai_clkctl_fast_pwrup_delay(struct si_pub *sih);
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bool ai_clkctl_cc(struct si_pub *sih, enum bcma_clkmode mode);
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bool ai_deviceremoved(struct si_pub *sih);
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/* Enable Ex-PA for 4313 */
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void ai_epa_4313war(struct si_pub *sih);
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static inline u32 ai_get_cccaps(struct si_pub *sih)
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{
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return sih->cccaps;
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}
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static inline int ai_get_pmurev(struct si_pub *sih)
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{
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return sih->pmurev;
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}
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static inline u32 ai_get_pmucaps(struct si_pub *sih)
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{
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return sih->pmucaps;
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}
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static inline uint ai_get_boardtype(struct si_pub *sih)
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{
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return sih->boardtype;
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}
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static inline uint ai_get_boardvendor(struct si_pub *sih)
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{
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return sih->boardvendor;
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}
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static inline uint ai_get_chip_id(struct si_pub *sih)
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{
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return sih->chip;
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}
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static inline uint ai_get_chiprev(struct si_pub *sih)
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{
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return sih->chiprev;
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}
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static inline uint ai_get_chippkg(struct si_pub *sih)
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{
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return sih->chippkg;
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}
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#endif /* _BRCM_AIUTILS_H_ */
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