/*
* Copyright (c) 2011 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.
*/
#ifndef _BRCM_AIUTILS_H_
#define _BRCM_AIUTILS_H_
#include <linux/bcma/bcma.h>
#include "types.h"
/*
* SOC Interconnect Address Map.
* All regions may not exist on all chips.
*/
/* each core gets 4Kbytes for registers */
#define SI_CORE_SIZE 0x1000
/*
* Max cores (this is arbitrary, for software
* convenience and could be changed if we
* make any larger chips
*/
#define SI_MAXCORES 16
/* Client Mode sb2pcitranslation2 size in bytes */
#define SI_PCI_DMA_SZ 0x40000000
/* PCIE Client Mode sb2pcitranslation2 (2 ZettaBytes), high 32 bits */
#define SI_PCIE_DMA_H32 0x80000000
/* chipcommon being the first core: */
#define SI_CC_IDX 0
/* SOC Interconnect types (aka chip types) */
#define SOCI_AI 1
/* A register that is common to all cores to
* communicate w/PMU regarding clock control.
*/
#define SI_CLK_CTL_ST 0x1e0 /* clock control and status */
/* clk_ctl_st register */
#define CCS_FORCEALP 0x00000001 /* force ALP request */
#define CCS_FORCEHT 0x00000002 /* force HT request */
#define CCS_FORCEILP 0x00000004 /* force ILP request */
#define CCS_ALPAREQ 0x00000008 /* ALP Avail Request */
#define CCS_HTAREQ 0x00000010 /* HT Avail Request */
#define CCS_FORCEHWREQOFF 0x00000020 /* Force HW Clock Request Off */
#define CCS_ERSRC_REQ_MASK 0x00000700 /* external resource requests */
#define CCS_ERSRC_REQ_SHIFT 8
#define CCS_ALPAVAIL 0x00010000 /* ALP is available */
#define CCS_HTAVAIL 0x00020000 /* HT is available */
#define CCS_BP_ON_APL 0x00040000 /* RO: running on ALP clock */
#define CCS_BP_ON_HT 0x00080000 /* RO: running on HT clock */
#define CCS_ERSRC_STS_MASK 0x07000000 /* external resource status */
#define CCS_ERSRC_STS_SHIFT 24
/* HT avail in chipc and pcmcia on 4328a0 */
#define CCS0_HTAVAIL 0x00010000
/* ALP avail in chipc and pcmcia on 4328a0 */
#define CCS0_ALPAVAIL 0x00020000
/* Not really related to SOC Interconnect, but a couple of software
* conventions for the use the flash space:
*/
/* Minumum amount of flash we support */
#define FLASH_MIN 0x00020000 /* Minimum flash size */
#define CC_SROM_OTP 0x800 /* SROM/OTP address space */
/* gpiotimerval */
#define GPIO_ONTIME_SHIFT 16
/* Fields in clkdiv */
#define CLKD_OTP 0x000f0000
#define CLKD_OTP_SHIFT 16
/* dynamic clock control defines */
#define LPOMINFREQ 25000 /* low power oscillator min */
#define LPOMAXFREQ 43000 /* low power oscillator max */
#define XTALMINFREQ 19800000 /* 20 MHz - 1% */
#define XTALMAXFREQ 20200000 /* 20 MHz + 1% */
#define PCIMINFREQ 25000000 /* 25 MHz */
#define PCIMAXFREQ 34000000 /* 33 MHz + fudge */
#define ILP_DIV_5MHZ 0 /* ILP = 5 MHz */
#define ILP_DIV_1MHZ 4 /* ILP = 1 MHz */
/* clkctl xtal what flags */
#define XTAL 0x1 /* primary crystal oscillator (2050) */
#define PLL 0x2 /* main chip pll */
/* GPIO usage priorities */
#define GPIO_DRV_PRIORITY 0 /* Driver */
#define GPIO_APP_PRIORITY 1 /* Application */
#define GPIO_HI_PRIORITY 2 /* Highest priority. Ignore GPIO
* reservation
*/
/* GPIO pull up/down */
#define GPIO_PULLUP 0
#define GPIO_PULLDN 1
/* GPIO event regtype */
#define GPIO_REGEVT 0 /* GPIO register event */
#define GPIO_REGEVT_INTMSK 1 /* GPIO register event int mask */
#define GPIO_REGEVT_INTPOL 2 /* GPIO register event int polarity */
/* device path */
#define SI_DEVPATH_BUFSZ 16 /* min buffer size in bytes */
/* SI routine enumeration: to be used by update function with multiple hooks */
#define SI_DOATTACH 1
#define SI_PCIDOWN 2
#define SI_PCIUP 3
/*
* Data structure to export all chip specific common variables
* public (read-only) portion of aiutils handle returned by si_attach()
*/
struct si_pub {
int ccrev; /* chip common core rev */
u32 cccaps; /* chip common capabilities */
int pmurev; /* pmu core rev */
u32 pmucaps; /* pmu capabilities */
uint boardtype; /* board type */
uint boardvendor; /* board vendor */
uint chip; /* chip number */
uint chiprev; /* chip revision */
uint chippkg; /* chip package option */
};
struct pci_dev;
struct gpioh_item {
void *arg;
bool level;
void (*handler) (u32 stat, void *arg);
u32 event;
struct gpioh_item *next;
};
/* misc si info needed by some of the routines */
struct si_info {
struct si_pub pub; /* back plane public state (must be first) */
struct bcma_bus *icbus; /* handle to soc interconnect bus */
struct pci_dev *pcibus; /* handle to pci bus */
u32 chipst; /* chip status */
};
/*
* Many of the routines below take an 'sih' handle as their first arg.
* Allocate this by calling si_attach(). Free it by calling si_detach().
* At any one time, the sih is logically focused on one particular si core
* (the "current core").
* Use si_setcore() or si_setcoreidx() to change the association to another core
*/
/* AMBA Interconnect exported externs */
u32 ai_core_cflags(struct bcma_device *core, u32 mask, u32 val);
/* === exported functions === */
struct si_pub *ai_attach(struct bcma_bus *pbus);
void ai_detach(struct si_pub *sih);
uint ai_cc_reg(struct si_pub *sih, uint regoff, u32 mask, u32 val);
void ai_clkctl_init(struct si_pub *sih);
u16 ai_clkctl_fast_pwrup_delay(struct si_pub *sih);
bool ai_clkctl_cc(struct si_pub *sih, enum bcma_clkmode mode);
bool ai_deviceremoved(struct si_pub *sih);
/* Enable Ex-PA for 4313 */
void ai_epa_4313war(struct si_pub *sih);
static inline u32 ai_get_cccaps(struct si_pub *sih)
{
return sih->cccaps;
}
static inline int ai_get_pmurev(struct si_pub *sih)
{
return sih->pmurev;
}
static inline u32 ai_get_pmucaps(struct si_pub *sih)
{
return sih->pmucaps;
}
static inline uint ai_get_boardtype(struct si_pub *sih)
{
return sih->boardtype;
}
static inline uint ai_get_boardvendor(struct si_pub *sih)
{
return sih->boardvendor;
}
static inline uint ai_get_chip_id(struct si_pub *sih)
{
return sih->chip;
}
static inline uint ai_get_chiprev(struct si_pub *sih)
{
return sih->chiprev;
}
static inline uint ai_get_chippkg(struct si_pub *sih)
{
return sih->chippkg;
}
#endif /* _BRCM_AIUTILS_H_ */