diff options
Diffstat (limited to 'target/linux/brcm-2.4')
4 files changed, 1361 insertions, 481 deletions
diff --git a/target/linux/brcm-2.4/files/arch/mips/bcm947xx/include/bcmutils.h b/target/linux/brcm-2.4/files/arch/mips/bcm947xx/include/bcmutils.h new file mode 100644 index 0000000000..4c4986ce6c --- /dev/null +++ b/target/linux/brcm-2.4/files/arch/mips/bcm947xx/include/bcmutils.h @@ -0,0 +1,589 @@ +/* + * Misc useful os-independent macros and functions. + * + * Copyright 2007, Broadcom Corporation + * All Rights Reserved. + * + * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY + * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM + * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. + * $Id$ + */ + +#ifndef _bcmutils_h_ +#define _bcmutils_h_ + +/* ctype replacement */ +#define _BCM_U 0x01 /* upper */ +#define _BCM_L 0x02 /* lower */ +#define _BCM_D 0x04 /* digit */ +#define _BCM_C 0x08 /* cntrl */ +#define _BCM_P 0x10 /* punct */ +#define _BCM_S 0x20 /* white space (space/lf/tab) */ +#define _BCM_X 0x40 /* hex digit */ +#define _BCM_SP 0x80 /* hard space (0x20) */ + +extern const unsigned char bcm_ctype[]; +#define bcm_ismask(x) (bcm_ctype[(int)(unsigned char)(x)]) + +#define bcm_isalnum(c) ((bcm_ismask(c)&(_BCM_U|_BCM_L|_BCM_D)) != 0) +#define bcm_isalpha(c) ((bcm_ismask(c)&(_BCM_U|_BCM_L)) != 0) +#define bcm_iscntrl(c) ((bcm_ismask(c)&(_BCM_C)) != 0) +#define bcm_isdigit(c) ((bcm_ismask(c)&(_BCM_D)) != 0) +#define bcm_isgraph(c) ((bcm_ismask(c)&(_BCM_P|_BCM_U|_BCM_L|_BCM_D)) != 0) +#define bcm_islower(c) ((bcm_ismask(c)&(_BCM_L)) != 0) +#define bcm_isprint(c) ((bcm_ismask(c)&(_BCM_P|_BCM_U|_BCM_L|_BCM_D|_BCM_SP)) != 0) +#define bcm_ispunct(c) ((bcm_ismask(c)&(_BCM_P)) != 0) +#define bcm_isspace(c) ((bcm_ismask(c)&(_BCM_S)) != 0) +#define bcm_isupper(c) ((bcm_ismask(c)&(_BCM_U)) != 0) +#define bcm_isxdigit(c) ((bcm_ismask(c)&(_BCM_D|_BCM_X)) != 0) +#define bcm_tolower(c) (bcm_isupper((c)) ? ((c) + 'a' - 'A') : (c)) +#define bcm_toupper(c) (bcm_islower((c)) ? ((c) + 'A' - 'a') : (c)) + +/* Buffer structure for collecting string-formatted data +* using bcm_bprintf() API. +* Use bcm_binit() to initialize before use +*/ + +struct bcmstrbuf { + char *buf; /* pointer to current position in origbuf */ + unsigned int size; /* current (residual) size in bytes */ + char *origbuf; /* unmodified pointer to orignal buffer */ + unsigned int origsize; /* unmodified orignal buffer size in bytes */ +}; + +/* ** driver-only section ** */ +#ifdef BCMDRIVER +#include <osl.h> + +#define GPIO_PIN_NOTDEFINED 0x20 /* Pin not defined */ + +/* + * Spin at most 'us' microseconds while 'exp' is true. + * Caller should explicitly test 'exp' when this completes + * and take appropriate error action if 'exp' is still true. + */ +#define SPINWAIT(exp, us) { \ + uint countdown = (us) + 9; \ + while ((exp) && (countdown >= 10)) {\ + OSL_DELAY(10); \ + countdown -= 10; \ + } \ +} + + +/* osl multi-precedence packet queue */ +#ifndef PKTQ_LEN_DEFAULT +#define PKTQ_LEN_DEFAULT 128 /* Max 128 packets */ +#endif +#ifndef PKTQ_MAX_PREC +#define PKTQ_MAX_PREC 16 /* Maximum precedence levels */ +#endif + +typedef struct pktq_prec { + void *head; /* first packet to dequeue */ + void *tail; /* last packet to dequeue */ + uint16 len; /* number of queued packets */ + uint16 max; /* maximum number of queued packets */ +} pktq_prec_t; + + +/* multi-priority pkt queue */ +struct pktq { + uint16 num_prec; /* number of precedences in use */ + uint16 hi_prec; /* rapid dequeue hint (>= highest non-empty prec) */ + uint16 max; /* total max packets */ + uint16 len; /* total number of packets */ + /* q array must be last since # of elements can be either PKTQ_MAX_PREC or 1 */ + struct pktq_prec q[PKTQ_MAX_PREC]; +}; + +/* simple, non-priority pkt queue */ +struct spktq { + uint16 num_prec; /* number of precedences in use (always 1) */ + uint16 hi_prec; /* rapid dequeue hint (>= highest non-empty prec) */ + uint16 max; /* total max packets */ + uint16 len; /* total number of packets */ + /* q array must be last since # of elements can be either PKTQ_MAX_PREC or 1 */ + struct pktq_prec q[1]; +}; + +#define PKTQ_PREC_ITER(pq, prec) for (prec = (pq)->num_prec - 1; prec >= 0; prec--) + +/* forward definition of ether_addr structure used by some function prototypes */ + +struct ether_addr; + +/* operations on a specific precedence in packet queue */ + +#define pktq_psetmax(pq, prec, _max) ((pq)->q[prec].max = (_max)) +#define pktq_plen(pq, prec) ((pq)->q[prec].len) +#define pktq_pavail(pq, prec) ((pq)->q[prec].max - (pq)->q[prec].len) +#define pktq_pfull(pq, prec) ((pq)->q[prec].len >= (pq)->q[prec].max) +#define pktq_pempty(pq, prec) ((pq)->q[prec].len == 0) + +#define pktq_ppeek(pq, prec) ((pq)->q[prec].head) +#define pktq_ppeek_tail(pq, prec) ((pq)->q[prec].tail) + +extern void *pktq_penq(struct pktq *pq, int prec, void *p); +extern void *pktq_penq_head(struct pktq *pq, int prec, void *p); +extern void *pktq_pdeq(struct pktq *pq, int prec); +extern void *pktq_pdeq_tail(struct pktq *pq, int prec); +/* Empty the queue at particular precedence level */ +extern void pktq_pflush(osl_t *osh, struct pktq *pq, int prec, bool dir); +/* Remove a specified packet from its queue */ +extern bool pktq_pdel(struct pktq *pq, void *p, int prec); + +/* operations on a set of precedences in packet queue */ + +extern int pktq_mlen(struct pktq *pq, uint prec_bmp); +extern void *pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out); + +/* operations on packet queue as a whole */ + +#define pktq_len(pq) ((int)(pq)->len) +#define pktq_max(pq) ((int)(pq)->max) +#define pktq_avail(pq) ((int)((pq)->max - (pq)->len)) +#define pktq_full(pq) ((pq)->len >= (pq)->max) +#define pktq_empty(pq) ((pq)->len == 0) + +/* operations for single precedence queues */ +#define pktenq(pq, p) pktq_penq(((struct pktq *)pq), 0, (p)) +#define pktenq_head(pq, p) pktq_penq_head(((struct pktq *)pq), 0, (p)) +#define pktdeq(pq) pktq_pdeq(((struct pktq *)pq), 0) +#define pktdeq_tail(pq) pktq_pdeq_tail(((struct pktq *)pq), 0) +#define pktqinit(pq, len) pktq_init(((struct pktq *)pq), 1, len) + +extern void pktq_init(struct pktq *pq, int num_prec, int max_len); +/* prec_out may be NULL if caller is not interested in return value */ +extern void *pktq_deq(struct pktq *pq, int *prec_out); +extern void *pktq_deq_tail(struct pktq *pq, int *prec_out); +extern void *pktq_peek(struct pktq *pq, int *prec_out); +extern void *pktq_peek_tail(struct pktq *pq, int *prec_out); +extern void pktq_flush(osl_t *osh, struct pktq *pq, bool dir); /* Empty the entire queue */ +extern int pktq_setmax(struct pktq *pq, int max_len); + +/* externs */ +/* packet */ +extern uint pktcopy(osl_t *osh, void *p, uint offset, int len, uchar *buf); +extern uint pkttotlen(osl_t *osh, void *p); +extern void *pktlast(osl_t *osh, void *p); + +/* Get priority from a packet and pass it back in scb (or equiv) */ +extern uint pktsetprio(void *pkt, bool update_vtag); +#define PKTPRIO_VDSCP 0x100 /* DSCP prio found after VLAN tag */ +#define PKTPRIO_VLAN 0x200 /* VLAN prio found */ +#define PKTPRIO_UPD 0x400 /* DSCP used to update VLAN prio */ +#define PKTPRIO_DSCP 0x800 /* DSCP prio found */ + +/* string */ +extern int BCMROMFN(bcm_atoi)(char *s); +extern ulong BCMROMFN(bcm_strtoul)(char *cp, char **endp, uint base); +extern char *BCMROMFN(bcmstrstr)(char *haystack, char *needle); +extern char *BCMROMFN(bcmstrcat)(char *dest, const char *src); +extern char *BCMROMFN(bcmstrncat)(char *dest, const char *src, uint size); +extern ulong wchar2ascii(char *abuf, ushort *wbuf, ushort wbuflen, ulong abuflen); +/* ethernet address */ +extern char *bcm_ether_ntoa(struct ether_addr *ea, char *buf); +extern int BCMROMFN(bcm_ether_atoe)(char *p, struct ether_addr *ea); + +/* ip address */ +struct ipv4_addr; +extern char *bcm_ip_ntoa(struct ipv4_addr *ia, char *buf); + +/* delay */ +extern void bcm_mdelay(uint ms); +/* variable access */ +extern char *getvar(char *vars, const char *name); +extern int getintvar(char *vars, const char *name); +extern uint getgpiopin(char *vars, char *pin_name, uint def_pin); +#ifdef BCMPERFSTATS +extern void bcm_perf_enable(void); +extern void bcmstats(char *fmt); +extern void bcmlog(char *fmt, uint a1, uint a2); +extern void bcmdumplog(char *buf, int size); +extern int bcmdumplogent(char *buf, uint idx); +#else +#define bcm_perf_enable() +#define bcmstats(fmt) +#define bcmlog(fmt, a1, a2) +#define bcmdumplog(buf, size) *buf = '\0' +#define bcmdumplogent(buf, idx) -1 +#endif /* BCMPERFSTATS */ +extern char *bcm_nvram_vars(uint *length); +extern int bcm_nvram_cache(void *sbh); + +/* Support for sharing code across in-driver iovar implementations. + * The intent is that a driver use this structure to map iovar names + * to its (private) iovar identifiers, and the lookup function to + * find the entry. Macros are provided to map ids and get/set actions + * into a single number space for a switch statement. + */ + +/* iovar structure */ +typedef struct bcm_iovar { + const char *name; /* name for lookup and display */ + uint16 varid; /* id for switch */ + uint16 flags; /* driver-specific flag bits */ + uint16 type; /* base type of argument */ + uint16 minlen; /* min length for buffer vars */ +} bcm_iovar_t; + +/* varid definitions are per-driver, may use these get/set bits */ + +/* IOVar action bits for id mapping */ +#define IOV_GET 0 /* Get an iovar */ +#define IOV_SET 1 /* Set an iovar */ + +/* Varid to actionid mapping */ +#define IOV_GVAL(id) ((id)*2) +#define IOV_SVAL(id) (((id)*2)+IOV_SET) +#define IOV_ISSET(actionid) ((actionid & IOV_SET) == IOV_SET) + +/* flags are per-driver based on driver attributes */ + +extern const bcm_iovar_t *bcm_iovar_lookup(const bcm_iovar_t *table, const char *name); +extern int bcm_iovar_lencheck(const bcm_iovar_t *table, void *arg, int len, bool set); + +#endif /* BCMDRIVER */ + +/* Base type definitions */ +#define IOVT_VOID 0 /* no value (implictly set only) */ +#define IOVT_BOOL 1 /* any value ok (zero/nonzero) */ +#define IOVT_INT8 2 /* integer values are range-checked */ +#define IOVT_UINT8 3 /* unsigned int 8 bits */ +#define IOVT_INT16 4 /* int 16 bits */ +#define IOVT_UINT16 5 /* unsigned int 16 bits */ +#define IOVT_INT32 6 /* int 32 bits */ +#define IOVT_UINT32 7 /* unsigned int 32 bits */ +#define IOVT_BUFFER 8 /* buffer is size-checked as per minlen */ +#define BCM_IOVT_VALID(type) (((unsigned int)(type)) <= IOVT_BUFFER) + +/* Initializer for IOV type strings */ +#define BCM_IOV_TYPE_INIT { \ + "void", \ + "bool", \ + "int8", \ + "uint8", \ + "int16", \ + "uint16", \ + "int32", \ + "uint32", \ + "buffer", \ + "" } + +#define BCM_IOVT_IS_INT(type) (\ + (type == IOVT_BOOL) || \ + (type == IOVT_INT8) || \ + (type == IOVT_UINT8) || \ + (type == IOVT_INT16) || \ + (type == IOVT_UINT16) || \ + (type == IOVT_INT32) || \ + (type == IOVT_UINT32)) + +/* ** driver/apps-shared section ** */ + +#define BCME_STRLEN 64 /* Max string length for BCM errors */ +#define VALID_BCMERROR(e) ((e <= 0) && (e >= BCME_LAST)) + + +/* + * error codes could be added but the defined ones shouldn't be changed/deleted + * these error codes are exposed to the user code + * when ever a new error code is added to this list + * please update errorstring table with the related error string and + * update osl files with os specific errorcode map +*/ + +#define BCME_OK 0 /* Success */ +#define BCME_ERROR -1 /* Error generic */ +#define BCME_BADARG -2 /* Bad Argument */ +#define BCME_BADOPTION -3 /* Bad option */ +#define BCME_NOTUP -4 /* Not up */ +#define BCME_NOTDOWN -5 /* Not down */ +#define BCME_NOTAP -6 /* Not AP */ +#define BCME_NOTSTA -7 /* Not STA */ +#define BCME_BADKEYIDX -8 /* BAD Key Index */ +#define BCME_RADIOOFF -9 /* Radio Off */ +#define BCME_NOTBANDLOCKED -10 /* Not band locked */ +#define BCME_NOCLK -11 /* No Clock */ +#define BCME_BADRATESET -12 /* BAD Rate valueset */ +#define BCME_BADBAND -13 /* BAD Band */ +#define BCME_BUFTOOSHORT -14 /* Buffer too short */ +#define BCME_BUFTOOLONG -15 /* Buffer too long */ +#define BCME_BUSY -16 /* Busy */ +#define BCME_NOTASSOCIATED -17 /* Not Associated */ +#define BCME_BADSSIDLEN -18 /* Bad SSID len */ +#define BCME_OUTOFRANGECHAN -19 /* Out of Range Channel */ +#define BCME_BADCHAN -20 /* Bad Channel */ +#define BCME_BADADDR -21 /* Bad Address */ +#define BCME_NORESOURCE -22 /* Not Enough Resources */ +#define BCME_UNSUPPORTED -23 /* Unsupported */ +#define BCME_BADLEN -24 /* Bad length */ +#define BCME_NOTREADY -25 /* Not Ready */ +#define BCME_EPERM -26 /* Not Permitted */ +#define BCME_NOMEM -27 /* No Memory */ +#define BCME_ASSOCIATED -28 /* Associated */ +#define BCME_RANGE -29 /* Not In Range */ +#define BCME_NOTFOUND -30 /* Not Found */ +#define BCME_WME_NOT_ENABLED -31 /* WME Not Enabled */ +#define BCME_TSPEC_NOTFOUND -32 /* TSPEC Not Found */ +#define BCME_ACM_NOTSUPPORTED -33 /* ACM Not Supported */ +#define BCME_NOT_WME_ASSOCIATION -34 /* Not WME Association */ +#define BCME_SDIO_ERROR -35 /* SDIO Bus Error */ +#define BCME_DONGLE_DOWN -36 /* Dongle Not Accessible */ +#define BCME_VERSION -37 /* Incorrect version */ +#define BCME_LAST BCME_VERSION + +/* These are collection of BCME Error strings */ +#define BCMERRSTRINGTABLE { \ + "OK", \ + "Undefined error", \ + "Bad Argument", \ + "Bad Option", \ + "Not up", \ + "Not down", \ + "Not AP", \ + "Not STA", \ + "Bad Key Index", \ + "Radio Off", \ + "Not band locked", \ + "No clock", \ + "Bad Rate valueset", \ + "Bad Band", \ + "Buffer too short", \ + "Buffer too long", \ + "Busy", \ + "Not Associated", \ + "Bad SSID len", \ + "Out of Range Channel", \ + "Bad Channel", \ + "Bad Address", \ + "Not Enough Resources", \ + "Unsupported", \ + "Bad length", \ + "Not Ready", \ + "Not Permitted", \ + "No Memory", \ + "Associated", \ + "Not In Range", \ + "Not Found", \ + "WME Not Enabled", \ + "TSPEC Not Found", \ + "ACM Not Supported", \ + "Not WME Association", \ + "SDIO Bus Error", \ + "Dongle Not Accessible", \ + "Incorrect version" \ +} + +#ifndef ABS +#define ABS(a) (((a) < 0)?-(a):(a)) +#endif /* ABS */ + +#ifndef MIN +#define MIN(a, b) (((a) < (b))?(a):(b)) +#endif /* MIN */ + +#ifndef MAX +#define MAX(a, b) (((a) > (b))?(a):(b)) +#endif /* MAX */ + +#define CEIL(x, y) (((x) + ((y)-1)) / (y)) +#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y)) +#define ISALIGNED(a, x) (((a) & ((x)-1)) == 0) +#define ISPOWEROF2(x) ((((x)-1)&(x)) == 0) +#define VALID_MASK(mask) !((mask) & ((mask) + 1)) +#ifndef OFFSETOF +#define OFFSETOF(type, member) ((uint)(uintptr)&((type *)0)->member) +#endif /* OFFSETOF */ +#ifndef ARRAYSIZE +#define ARRAYSIZE(a) (sizeof(a)/sizeof(a[0])) +#endif + +/* bit map related macros */ +#ifndef setbit +#ifndef NBBY /* the BSD family defines NBBY */ +#define NBBY 8 /* 8 bits per byte */ +#endif /* #ifndef NBBY */ +#define setbit(a, i) (((uint8 *)a)[(i)/NBBY] |= 1<<((i)%NBBY)) +#define clrbit(a, i) (((uint8 *)a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) +#define isset(a, i) (((const uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) +#define isclr(a, i) ((((const uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) +#endif /* setbit */ + +#define NBITS(type) (sizeof(type) * 8) +#define NBITVAL(nbits) (1 << (nbits)) +#define MAXBITVAL(nbits) ((1 << (nbits)) - 1) +#define NBITMASK(nbits) MAXBITVAL(nbits) +#define MAXNBVAL(nbyte) MAXBITVAL((nbyte) * 8) + +/* basic mux operation - can be optimized on several architectures */ +#define MUX(pred, true, false) ((pred) ? (true) : (false)) + +/* modulo inc/dec - assumes x E [0, bound - 1] */ +#define MODDEC(x, bound) MUX((x) == 0, (bound) - 1, (x) - 1) +#define MODINC(x, bound) MUX((x) == (bound) - 1, 0, (x) + 1) + +/* modulo inc/dec, bound = 2^k */ +#define MODDEC_POW2(x, bound) (((x) - 1) & ((bound) - 1)) +#define MODINC_POW2(x, bound) (((x) + 1) & ((bound) - 1)) + +/* modulo add/sub - assumes x, y E [0, bound - 1] */ +#define MODADD(x, y, bound) \ + MUX((x) + (y) >= (bound), (x) + (y) - (bound), (x) + (y)) +#define MODSUB(x, y, bound) \ + MUX(((int)(x)) - ((int)(y)) < 0, (x) - (y) + (bound), (x) - (y)) + +/* module add/sub, bound = 2^k */ +#define MODADD_POW2(x, y, bound) (((x) + (y)) & ((bound) - 1)) +#define MODSUB_POW2(x, y, bound) (((x) - (y)) & ((bound) - 1)) + +/* crc defines */ +#define CRC8_INIT_VALUE 0xff /* Initial CRC8 checksum value */ +#define CRC8_GOOD_VALUE 0x9f /* Good final CRC8 checksum value */ +#define CRC16_INIT_VALUE 0xffff /* Initial CRC16 checksum value */ +#define CRC16_GOOD_VALUE 0xf0b8 /* Good final CRC16 checksum value */ +#define CRC32_INIT_VALUE 0xffffffff /* Initial CRC32 checksum value */ +#define CRC32_GOOD_VALUE 0xdebb20e3 /* Good final CRC32 checksum value */ + +/* bcm_format_flags() bit description structure */ +typedef struct bcm_bit_desc { + uint32 bit; + const char* name; +} bcm_bit_desc_t; + +/* tag_ID/length/value_buffer tuple */ +typedef struct bcm_tlv { + uint8 id; + uint8 len; + uint8 data[1]; +} bcm_tlv_t; + +/* Check that bcm_tlv_t fits into the given buflen */ +#define bcm_valid_tlv(elt, buflen) ((buflen) >= 2 && (int)(buflen) >= (int)(2 + (elt)->len)) + +/* buffer length for ethernet address from bcm_ether_ntoa() */ +#define ETHER_ADDR_STR_LEN 18 /* 18-bytes of Ethernet address buffer length */ + +/* unaligned load and store macros */ +#ifdef IL_BIGENDIAN +static INLINE uint32 +load32_ua(uint8 *a) +{ + return ((a[0] << 24) | (a[1] << 16) | (a[2] << 8) | a[3]); +} + +static INLINE void +store32_ua(uint8 *a, uint32 v) +{ + a[0] = (v >> 24) & 0xff; + a[1] = (v >> 16) & 0xff; + a[2] = (v >> 8) & 0xff; + a[3] = v & 0xff; +} + +static INLINE uint16 +load16_ua(uint8 *a) +{ + return ((a[0] << 8) | a[1]); +} + +static INLINE void +store16_ua(uint8 *a, uint16 v) +{ + a[0] = (v >> 8) & 0xff; + a[1] = v & 0xff; +} + +#else /* IL_BIGENDIAN */ + +static INLINE uint32 +load32_ua(uint8 *a) +{ + return ((a[3] << 24) | (a[2] << 16) | (a[1] << 8) | a[0]); +} + +static INLINE void +store32_ua(uint8 *a, uint32 v) +{ + a[3] = (v >> 24) & 0xff; + a[2] = (v >> 16) & 0xff; + a[1] = (v >> 8) & 0xff; + a[0] = v & 0xff; +} + +static INLINE uint16 +load16_ua(uint8 *a) +{ + return ((a[1] << 8) | a[0]); +} + +static INLINE void +store16_ua(uint8 *a, uint16 v) +{ + a[1] = (v >> 8) & 0xff; + a[0] = v & 0xff; +} + +#endif /* IL_BIGENDIAN */ + +/* externs */ +/* crc */ +extern uint8 BCMROMFN(hndcrc8)(uint8 *p, uint nbytes, uint8 crc); +extern uint16 BCMROMFN(hndcrc16)(uint8 *p, uint nbytes, uint16 crc); +extern uint32 BCMROMFN(hndcrc32)(uint8 *p, uint nbytes, uint32 crc); +/* format/print */ +extern char *bcm_brev_str(uint16 brev, char *buf); +extern void printfbig(char *buf); + +/* IE parsing */ +extern bcm_tlv_t *BCMROMFN(bcm_next_tlv)(bcm_tlv_t *elt, int *buflen); +extern bcm_tlv_t *BCMROMFN(bcm_parse_tlvs)(void *buf, int buflen, uint key); +extern bcm_tlv_t *BCMROMFN(bcm_parse_ordered_tlvs)(void *buf, int buflen, uint key); + +/* bcmerror */ +extern const char *bcmerrorstr(int bcmerror); + +/* multi-bool data type: set of bools, mbool is true if any is set */ +typedef uint32 mbool; +#define mboolset(mb, bit) ((mb) |= (bit)) /* set one bool */ +#define mboolclr(mb, bit) ((mb) &= ~(bit)) /* clear one bool */ +#define mboolisset(mb, bit) (((mb) & (bit)) != 0) /* TRUE if one bool is set */ +#define mboolmaskset(mb, mask, val) ((mb) = (((mb) & ~(mask)) | (val))) + +/* power conversion */ +extern uint16 BCMROMFN(bcm_qdbm_to_mw)(uint8 qdbm); +extern uint8 BCMROMFN(bcm_mw_to_qdbm)(uint16 mw); + +/* generic datastruct to help dump routines */ +struct fielddesc { + const char *nameandfmt; + uint32 offset; + uint32 len; +}; + +extern void bcm_binit(struct bcmstrbuf *b, char *buf, uint size); +extern int bcm_bprintf(struct bcmstrbuf *b, const char *fmt, ...); + +typedef uint32 (*readreg_rtn)(void *arg0, void *arg1, uint32 offset); +extern uint bcmdumpfields(readreg_rtn func_ptr, void *arg0, void *arg1, struct fielddesc *str, + char *buf, uint32 bufsize); + +extern uint bcm_mkiovar(char *name, char *data, uint datalen, char *buf, uint len); +extern uint BCMROMFN(bcm_bitcount)(uint8 *bitmap, uint bytelength); + +#ifdef BCMDBG_PKT /* pkt logging for debugging */ +#define PKTLIST_SIZE 1000 +typedef struct { + void *list[PKTLIST_SIZE]; /* List of pointers to packets */ + uint count; /* Total count of the packets */ +} pktlist_info_t; + +extern void pktlist_add(pktlist_info_t *pktlist, void *p); +extern void pktlist_remove(pktlist_info_t *pktlist, void *p); +extern char* pktlist_dump(pktlist_info_t *pktlist, char *buf); +#endif /* BCMDBG_PKT */ + +#endif /* _bcmutils_h_ */ diff --git a/target/linux/brcm-2.4/files/arch/mips/bcm947xx/sflash.c b/target/linux/brcm-2.4/files/arch/mips/bcm947xx/sflash.c new file mode 100644 index 0000000000..9bfb8b42a2 --- /dev/null +++ b/target/linux/brcm-2.4/files/arch/mips/bcm947xx/sflash.c @@ -0,0 +1,508 @@ +/* + * Broadcom SiliconBackplane chipcommon serial flash interface + * + * Copyright 2007, Broadcom Corporation + * All Rights Reserved. + * + * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY + * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM + * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. + * + * $Id$ + */ + +#include <typedefs.h> +#include <osl.h> +#include "include/bcmutils.h" +#include <sbutils.h> +#include <sbconfig.h> +#include <sbchipc.h> +#include <bcmdevs.h> +#include <sflash.h> + +/* Private global state */ +static struct sflash sflash; + +/* Issue a serial flash command */ +static INLINE void +sflash_cmd(osl_t *osh, chipcregs_t *cc, uint opcode) +{ + W_REG(osh, &cc->flashcontrol, SFLASH_START | opcode); + while (R_REG(osh, &cc->flashcontrol) & SFLASH_BUSY); +} + +/* Initialize serial flash access */ +struct sflash * +sflash_init(sb_t *sbh, chipcregs_t *cc) +{ + uint32 id, id2; + osl_t *osh; + + ASSERT(sbh); + + osh = sb_osh(sbh); + + bzero(&sflash, sizeof(sflash)); + + sflash.type = sbh->cccaps & CC_CAP_FLASH_MASK; + + switch (sflash.type) { + case SFLASH_ST: + /* Probe for ST chips */ + sflash_cmd(osh, cc, SFLASH_ST_DP); + sflash_cmd(osh, cc, SFLASH_ST_RES); + id = R_REG(osh, &cc->flashdata); + switch (id) { + case 0x11: + /* ST M25P20 2 Mbit Serial Flash */ + sflash.blocksize = 64 * 1024; + sflash.numblocks = 4; + break; + case 0x12: + /* ST M25P40 4 Mbit Serial Flash */ + sflash.blocksize = 64 * 1024; + sflash.numblocks = 8; + break; + case 0x13: + /* ST M25P80 8 Mbit Serial Flash */ + sflash.blocksize = 64 * 1024; + sflash.numblocks = 16; + break; + case 0x14: + /* ST M25P16 16 Mbit Serial Flash */ + sflash.blocksize = 64 * 1024; + sflash.numblocks = 32; + break; + case 0x15: + /* ST M25P32 32 Mbit Serial Flash */ + sflash.blocksize = 64 * 1024; + sflash.numblocks = 64; + break; + case 0x16: + /* ST M25P64 64 Mbit Serial Flash */ + sflash.blocksize = 64 * 1024; + sflash.numblocks = 128; + break; + case 0xbf: + W_REG(osh, &cc->flashaddress, 1); + sflash_cmd(osh, cc, SFLASH_ST_RES); + id2 = R_REG(osh, &cc->flashdata); + if (id2 == 0x44) { + /* SST M25VF80 4 Mbit Serial Flash */ + sflash.blocksize = 64 * 1024; + sflash.numblocks = 8; + } + break; + } + break; + + case SFLASH_AT: + /* Probe for Atmel chips */ + sflash_cmd(osh, cc, SFLASH_AT_STATUS); + id = R_REG(osh, &cc->flashdata) & 0x3c; + switch (id) { + case 0xc: + /* Atmel AT45DB011 1Mbit Serial Flash */ + sflash.blocksize = 256; + sflash.numblocks = 512; + break; + case 0x14: + /* Atmel AT45DB021 2Mbit Serial Flash */ + sflash.blocksize = 256; + sflash.numblocks = 1024; + break; + case 0x1c: + /* Atmel AT45DB041 4Mbit Serial Flash */ + sflash.blocksize = 256; + sflash.numblocks = 2048; + break; + case 0x24: + /* Atmel AT45DB081 8Mbit Serial Flash */ + sflash.blocksize = 256; + sflash.numblocks = 4096; + break; + case 0x2c: + /* Atmel AT45DB161 16Mbit Serial Flash */ + sflash.blocksize = 512; + sflash.numblocks = 4096; + break; + case 0x34: + /* Atmel AT45DB321 32Mbit Serial Flash */ + sflash.blocksize = 512; + sflash.numblocks = 8192; + break; + case 0x3c: + /* Atmel AT45DB642 64Mbit Serial Flash */ + sflash.blocksize = 1024; + sflash.numblocks = 8192; + break; + } + break; + } + + sflash.size = sflash.blocksize * sflash.numblocks; + return sflash.size ? &sflash : NULL; +} + +/* Read len bytes starting at offset into buf. Returns number of bytes read. */ +int +sflash_read(sb_t *sbh, chipcregs_t *cc, uint offset, uint len, uchar *buf) +{ + uint8 *from, *to; + int cnt, i; + osl_t *osh; + + ASSERT(sbh); + + if (!len) + return 0; + + if ((offset + len) > sflash.size) + return -22; + + if ((len >= 4) && (offset & 3)) + cnt = 4 - (offset & 3); + else if ((len >= 4) && ((uintptr)buf & 3)) + cnt = 4 - ((uintptr)buf & 3); + else + cnt = len; + + osh = sb_osh(sbh); + + from = (uint8 *)(uintptr)OSL_UNCACHED(SB_FLASH2 + offset); + to = (uint8 *)buf; + + if (cnt < 4) { + for (i = 0; i < cnt; i ++) { + *to = R_REG(osh, from); + from ++; + to ++; + } + return cnt; + } + + while (cnt >= 4) { + *(uint32 *)to = R_REG(osh, (uint32 *)from); + from += 4; + to += 4; + cnt -= 4; + } + + return (len - cnt); +} + +/* Poll for command completion. Returns zero when complete. */ +int +sflash_poll(sb_t *sbh, chipcregs_t *cc, uint offset) +{ + osl_t *osh; + + ASSERT(sbh); + + osh = sb_osh(sbh); + + if (offset >= sflash.size) + return -22; + + switch (sflash.type) { + case SFLASH_ST: + /* Check for ST Write In Progress bit */ + sflash_cmd(osh, cc, SFLASH_ST_RDSR); + return R_REG(osh, &cc->flashdata) & SFLASH_ST_WIP; + case SFLASH_AT: + /* Check for Atmel Ready bit */ + sflash_cmd(osh, cc, SFLASH_AT_STATUS); + return !(R_REG(osh, &cc->flashdata) & SFLASH_AT_READY); + } + + return 0; +} + +/* Write len bytes starting at offset into buf. Returns number of bytes + * written. Caller should poll for completion. + */ +int +sflash_write(sb_t *sbh, chipcregs_t *cc, uint offset, uint len, const uchar *buf) +{ + struct sflash *sfl; + int ret = 0; + bool is4712b0; + uint32 page, byte, mask; + osl_t *osh; + + ASSERT(sbh); + + osh = sb_osh(sbh); + + if (!len) + return 0; + + if ((offset + len) > sflash.size) + return -22; + + sfl = &sflash; + switch (sfl->type) { + case SFLASH_ST: + is4712b0 = (sbh->chip == BCM4712_CHIP_ID) && (sbh->chiprev == 3); + /* Enable writes */ + sflash_cmd(osh, cc, SFLASH_ST_WREN); + if (is4712b0) { + mask = 1 << 14; + W_REG(osh, &cc->flashaddress, offset); + W_REG(osh, &cc->flashdata, *buf++); + /* Set chip select */ + OR_REG(osh, &cc->gpioout, mask); + /* Issue a page program with the first byte */ + sflash_cmd(osh, cc, SFLASH_ST_PP); + ret = 1; + offset++; + len--; + while (len > 0) { + if ((offset & 255) == 0) { + /* Page boundary, drop cs and return */ + AND_REG(osh, &cc->gpioout, ~mask); + if (!sflash_poll(sbh, cc, offset)) { + /* Flash rejected command */ + return -11; + } + return ret; + } else { + /* Write single byte */ + sflash_cmd(osh, cc, *buf++); + } + ret++; + offset++; + len--; + } + /* All done, drop cs if needed */ + if ((offset & 255) != 1) { + /* Drop cs */ + AND_REG(osh, &cc->gpioout, ~mask); + if (!sflash_poll(sbh, cc, offset)) { + /* Flash rejected command */ + return -12; + } + } + } else if ( (sbh->ccrev >= 20) && (len != 1) ) { + //} else if ( sbh->ccrev >= 20 ) { /* foxconn modified by EricHuang, 05/24/2007 */ + W_REG(NULL, &cc->flashaddress, offset); + W_REG(NULL, &cc->flashdata, *buf++); + /* Issue a page program with CSA bit set */ + sflash_cmd(osh, cc, SFLASH_ST_CSA | SFLASH_ST_PP); + ret = 1; + offset++; + len--; + while (len > 0) { + if ((offset & 255) == 0) { + /* Page boundary, poll droping cs and return */ + W_REG(NULL, &cc->flashcontrol, 0); + /* wklin added start, 06/08/2007 */ + W_REG(NULL, &cc->flashcontrol, 0); + OSL_DELAY(1); + /* wklin added end, 06/08/2007 */ + /* wklin rmeoved start, 06/08/2007 */ +#if 0 + if (!sflash_poll(sbh, cc, offset)) { + /* Flash rejected command */ + return -11; + } +#endif + /* wklin removed end, 06/08/2007 */ + return ret; + } else { + /* Write single byte */ + sflash_cmd(osh, cc, SFLASH_ST_CSA | *buf++); + } + ret++; + offset++; + len--; + } + /* All done, drop cs if needed */ + if ((offset & 255) != 1) { + /* Drop cs, poll */ + W_REG(NULL, &cc->flashcontrol, 0); + /* wklin added start, 06/08/2007 */ + W_REG(NULL, &cc->flashcontrol, 0); + OSL_DELAY(1); + /* wklin added end, 06/08/2007 */ + /* wklin removed start, 06/08/2007 */ +#if 0 + if (!sflash_poll(sbh, cc, offset)) { + /* Flash rejected command */ + return -12; + } +#endif + /* wklin removed end, 06/08/2007 */ + } + } else { + ret = 1; + W_REG(osh, &cc->flashaddress, offset); + W_REG(osh, &cc->flashdata, *buf); + /* Page program */ + sflash_cmd(osh, cc, SFLASH_ST_PP); + } + break; + case SFLASH_AT: + mask = sfl->blocksize - 1; + page = (offset & ~mask) << 1; + byte = offset & mask; + /* Read main memory page into buffer 1 */ + if (byte || (len < sfl->blocksize)) { + W_REG(osh, &cc->flashaddress, page); + sflash_cmd(osh, cc, SFLASH_AT_BUF1_LOAD); + /* 250 us for AT45DB321B */ + SPINWAIT(sflash_poll(sbh, cc, offset), 1000); + ASSERT(!sflash_poll(sbh, cc, offset)); + } + /* Write into buffer 1 */ + for (ret = 0; (ret < (int)len) && (byte < sfl->blocksize); ret++) { + W_REG(osh, &cc->flashaddress, byte++); + W_REG(osh, &cc->flashdata, *buf++); + sflash_cmd(osh, cc, SFLASH_AT_BUF1_WRITE); + } + /* Write buffer 1 into main memory page */ + W_REG(osh, &cc->flashaddress, page); + sflash_cmd(osh, cc, SFLASH_AT_BUF1_PROGRAM); + break; + } + + return ret; +} + +/* Erase a region. Returns number of bytes scheduled for erasure. + * Caller should poll for completion. + */ +int +sflash_erase(sb_t *sbh, chipcregs_t *cc, uint offset) +{ + struct sflash *sfl; + osl_t *osh; + + ASSERT(sbh); + + osh = sb_osh(sbh); + + if (offset >= sflash.size) + return -22; + + sfl = &sflash; + switch (sfl->type) { + case SFLASH_ST: + sflash_cmd(osh, cc, SFLASH_ST_WREN); + W_REG(osh, &cc->flashaddress, offset); + sflash_cmd(osh, cc, SFLASH_ST_SE); + return sfl->blocksize; + case SFLASH_AT: + W_REG(osh, &cc->flashaddress, offset << 1); + sflash_cmd(osh, cc, SFLASH_AT_PAGE_ERASE); + return sfl->blocksize; + } + + return 0; +} + +/* + * writes the appropriate range of flash, a NULL buf simply erases + * the region of flash + */ +int +sflash_commit(sb_t *sbh, chipcregs_t *cc, uint offset, uint len, const uchar *buf) +{ + struct sflash *sfl; + uchar *block = NULL, *cur_ptr, *blk_ptr; + uint blocksize = 0, mask, cur_offset, cur_length, cur_retlen, remainder; + uint blk_offset, blk_len, copied; + int bytes, ret = 0; + osl_t *osh; + + ASSERT(sbh); + + osh = sb_osh(sbh); + + /* Check address range */ + if (len <= 0) + return 0; + + sfl = &sflash; + if ((offset + len) > sfl->size) + return -1; + + blocksize = sfl->blocksize; + mask = blocksize - 1; + + /* Allocate a block of mem */ + if (!(block = MALLOC(osh, blocksize))) + return -1; + + while (len) { + /* Align offset */ + cur_offset = offset & ~mask; + cur_length = blocksize; + cur_ptr = block; + + remainder = blocksize - (offset & mask); + if (len < remainder) + cur_retlen = len; + else + cur_retlen = remainder; + + /* buf == NULL means erase only */ + if (buf) { + /* Copy existing data into holding block if necessary */ + if ((offset & mask) || (len < blocksize)) { + blk_offset = cur_offset; + blk_len = cur_length; + blk_ptr = cur_ptr; + + /* Copy entire block */ + while (blk_len) { + copied = sflash_read(sbh, cc, blk_offset, blk_len, blk_ptr); + blk_offset += copied; + blk_len -= copied; + blk_ptr += copied; + } + } + + /* Copy input data into holding block */ + memcpy(cur_ptr + (offset & mask), buf, cur_retlen); + } + + /* Erase block */ + if ((ret = sflash_erase(sbh, cc, (uint) cur_offset)) < 0) + goto done; + while (sflash_poll(sbh, cc, (uint) cur_offset)); + + /* buf == NULL means erase only */ + if (!buf) { + offset += cur_retlen; + len -= cur_retlen; + continue; + } + + /* Write holding block */ + while (cur_length > 0) { + if ((bytes = sflash_write(sbh, cc, + (uint) cur_offset, + (uint) cur_length, + (uchar *) cur_ptr)) < 0) { + ret = bytes; + goto done; + } + while (sflash_poll(sbh, cc, (uint) cur_offset)); + cur_offset += bytes; + cur_length -= bytes; + cur_ptr += bytes; + } + + offset += cur_retlen; + len -= cur_retlen; + buf += cur_retlen; + } + + ret = len; +done: + if (block) + MFREE(osh, block, blocksize); + return ret; +} diff --git a/target/linux/brcm-2.4/files/drivers/mtd/devices/sflash.c b/target/linux/brcm-2.4/files/drivers/mtd/devices/sflash.c index 7ffb004785..a8aab7bd97 100644 --- a/target/linux/brcm-2.4/files/drivers/mtd/devices/sflash.c +++ b/target/linux/brcm-2.4/files/drivers/mtd/devices/sflash.c @@ -1,530 +1,303 @@ /* * Broadcom SiliconBackplane chipcommon serial flash interface * - * Copyright 2007, Broadcom Corporation - * All Rights Reserved. - * - * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY - * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM - * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. + * Copyright 2006, Broadcom Corporation + * All Rights Reserved. + * + * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY + * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM + * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. * + * $Id$ */ +#include <linux/config.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/ioport.h> +#include <linux/mtd/compatmac.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/errno.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <asm/io.h> + #include <typedefs.h> #include <osl.h> +// #include <bcmutils.h> +#include <bcmdevs.h> +#include <bcmnvram.h> #include <sbutils.h> #include <sbconfig.h> #include <sbchipc.h> -#include <bcmdevs.h> #include <sflash.h> +#ifdef CONFIG_MTD_PARTITIONS +extern struct mtd_partition * init_mtd_partitions(struct mtd_info *mtd, size_t size); +#endif + +struct sflash_mtd { + sb_t *sbh; + chipcregs_t *cc; + struct semaphore lock; + struct mtd_info mtd; + struct mtd_erase_region_info region; +}; + /* Private global state */ -static struct sflash sflash; +static struct sflash_mtd sflash; -/* Issue a serial flash command */ -static INLINE void -sflash_cmd (osl_t * osh, chipcregs_t * cc, uint opcode) +static int +sflash_mtd_poll(struct sflash_mtd *sflash, unsigned int offset, int timeout) { - W_REG (osh, &cc->flashcontrol, SFLASH_START | opcode); - while (R_REG (osh, &cc->flashcontrol) & SFLASH_BUSY); -} + int now = jiffies; + int ret = 0; -/* Initialize serial flash access */ -struct sflash * -sflash_init (sb_t * sbh, chipcregs_t * cc) -{ - uint32 id, id2; - osl_t *osh; - - ASSERT (sbh); - - osh = sb_osh (sbh); - - bzero (&sflash, sizeof (sflash)); - - sflash.type = sbh->cccaps & CC_CAP_FLASH_MASK; - - switch (sflash.type) - { - case SFLASH_ST: - /* Probe for ST chips */ - sflash_cmd (osh, cc, SFLASH_ST_DP); - sflash_cmd (osh, cc, SFLASH_ST_RES); - id = R_REG (osh, &cc->flashdata); - switch (id) - { - case 0x11: - /* ST M25P20 2 Mbit Serial Flash */ - sflash.blocksize = 64 * 1024; - sflash.numblocks = 4; - break; - case 0x12: - /* ST M25P40 4 Mbit Serial Flash */ - sflash.blocksize = 64 * 1024; - sflash.numblocks = 8; - break; - case 0x13: - /* ST M25P80 8 Mbit Serial Flash */ - sflash.blocksize = 64 * 1024; - sflash.numblocks = 16; - break; - case 0x14: - /* ST M25P16 16 Mbit Serial Flash */ - sflash.blocksize = 64 * 1024; - sflash.numblocks = 32; - break; - case 0x15: - /* ST M25P32 32 Mbit Serial Flash */ - sflash.blocksize = 64 * 1024; - sflash.numblocks = 64; - break; - case 0x16: - /* ST M25P64 64 Mbit Serial Flash */ - sflash.blocksize = 64 * 1024; - sflash.numblocks = 128; - break; - case 0xbf: - W_REG (osh, &cc->flashaddress, 1); - sflash_cmd (osh, cc, SFLASH_ST_RES); - id2 = R_REG (osh, &cc->flashdata); - if (id2 == 0x44) - { - /* SST M25VF80 4 Mbit Serial Flash */ - sflash.blocksize = 64 * 1024; - sflash.numblocks = 8; - } - break; - } - break; - - case SFLASH_AT: - /* Probe for Atmel chips */ - sflash_cmd (osh, cc, SFLASH_AT_STATUS); - id = R_REG (osh, &cc->flashdata) & 0x3c; - switch (id) - { - case 0xc: - /* Atmel AT45DB011 1Mbit Serial Flash */ - sflash.blocksize = 256; - sflash.numblocks = 512; - break; - case 0x14: - /* Atmel AT45DB021 2Mbit Serial Flash */ - sflash.blocksize = 256; - sflash.numblocks = 1024; - break; - case 0x1c: - /* Atmel AT45DB041 4Mbit Serial Flash */ - sflash.blocksize = 256; - sflash.numblocks = 2048; - break; - case 0x24: - /* Atmel AT45DB081 8Mbit Serial Flash */ - sflash.blocksize = 256; - sflash.numblocks = 4096; - break; - case 0x2c: - /* Atmel AT45DB161 16Mbit Serial Flash */ - sflash.blocksize = 512; - sflash.numblocks = 4096; - break; - case 0x34: - /* Atmel AT45DB321 32Mbit Serial Flash */ - sflash.blocksize = 512; - sflash.numblocks = 8192; - break; - case 0x3c: - /* Atmel AT45DB642 64Mbit Serial Flash */ - sflash.blocksize = 1024; - sflash.numblocks = 8192; - break; + for (;;) { + if (!sflash_poll(sflash->sbh, sflash->cc, offset)) { + ret = 0; + break; + } + if (time_after(jiffies, now + timeout)) { + printk(KERN_ERR "sflash: timeout\n"); + ret = -ETIMEDOUT; + break; + } + if (current->need_resched) { + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(timeout / 10); + } else + udelay(1); } - break; - } - sflash.size = sflash.blocksize * sflash.numblocks; - return sflash.size ? &sflash : NULL; + return ret; } -/* Read len bytes starting at offset into buf. Returns number of bytes read. */ -int -sflash_read (sb_t * sbh, chipcregs_t * cc, uint offset, uint len, uchar * buf) +static int +sflash_mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { - uint8 *from, *to; - int cnt, i; - osl_t *osh; - - ASSERT (sbh); - - if (!len) - return 0; + struct sflash_mtd *sflash = (struct sflash_mtd *) mtd->priv; + int bytes, ret = 0; + + /* Check address range */ + if (len == 0){ + *retlen = 0; + return 0; + } + if (!len) + return 0; + if ((from + len) > mtd->size) + return -EINVAL; + + down(&sflash->lock); + + *retlen = 0; + while (len) { + if ((bytes = sflash_read(sflash->sbh, sflash->cc, (uint) from, len, buf)) < 0) { + ret = bytes; + break; + } + from += (loff_t) bytes; + len -= bytes; + buf += bytes; + *retlen += bytes; + } - if ((offset + len) > sflash.size) - return -22; + up(&sflash->lock); - if ((len >= 4) && (offset & 3)) - cnt = 4 - (offset & 3); - else if ((len >= 4) && ((uintptr) buf & 3)) - cnt = 4 - ((uintptr) buf & 3); - else - cnt = len; + return ret; +} - osh = sb_osh (sbh); +static int +sflash_mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) +{ + struct sflash_mtd *sflash = (struct sflash_mtd *) mtd->priv; + int bytes, ret = 0; + + /* Check address range */ + if (len == 0){ + *retlen = 0; + return 0; + } + if (!len) + return 0; + if ((to + len) > mtd->size) + return -EINVAL; + + down(&sflash->lock); + + *retlen = 0; + while (len) { + if ((bytes = sflash_write(sflash->sbh, sflash->cc, (uint)to, (uint)len, buf)) < 0) { + ret = bytes; + break; + } + if ((ret = sflash_mtd_poll(sflash, (unsigned int) to, HZ / 10))) + break; + to += (loff_t) bytes; + len -= bytes; + buf += bytes; + *retlen += bytes; + } - from = (uint8 *) (uintptr) OSL_UNCACHED (SB_FLASH2 + offset); - to = (uint8 *) buf; + up(&sflash->lock); - if (cnt < 4) - { - for (i = 0; i < cnt; i++) - { - *to = R_REG (osh, from); - from++; - to++; - } - return cnt; - } - - while (cnt >= 4) - { - *(uint32 *) to = R_REG (osh, (uint32 *) from); - from += 4; - to += 4; - cnt -= 4; - } - - return (len - cnt); + return ret; } -/* Poll for command completion. Returns zero when complete. */ -int -sflash_poll (sb_t * sbh, chipcregs_t * cc, uint offset) +static int +sflash_mtd_erase(struct mtd_info *mtd, struct erase_info *erase) { - osl_t *osh; - - ASSERT (sbh); + struct sflash_mtd *sflash = (struct sflash_mtd *) mtd->priv; + int i, j, ret = 0; + unsigned int addr, len; + + /* Check address range */ + if (!erase->len) + return 0; + if ((erase->addr + erase->len) > mtd->size) + return -EINVAL; + + addr = erase->addr; + len = erase->len; + + down(&sflash->lock); + + /* Ensure that requested region is aligned */ + for (i = 0; i < mtd->numeraseregions; i++) { + for (j = 0; j < mtd->eraseregions[i].numblocks; j++) { + if (addr == mtd->eraseregions[i].offset + mtd->eraseregions[i].erasesize * j && + len >= mtd->eraseregions[i].erasesize) { + if ((ret = sflash_erase(sflash->sbh, sflash->cc, addr)) < 0) + break; + if ((ret = sflash_mtd_poll(sflash, addr, 10 * HZ))) + break; + addr += mtd->eraseregions[i].erasesize; + len -= mtd->eraseregions[i].erasesize; + } + } + if (ret) + break; + } - osh = sb_osh (sbh); + up(&sflash->lock); - if (offset >= sflash.size) - return -22; + /* Set erase status */ + if (ret) + erase->state = MTD_ERASE_FAILED; + else + erase->state = MTD_ERASE_DONE; - switch (sflash.type) - { - case SFLASH_ST: - /* Check for ST Write In Progress bit */ - sflash_cmd (osh, cc, SFLASH_ST_RDSR); - return R_REG (osh, &cc->flashdata) & SFLASH_ST_WIP; - case SFLASH_AT: - /* Check for Atmel Ready bit */ - sflash_cmd (osh, cc, SFLASH_AT_STATUS); - return !(R_REG (osh, &cc->flashdata) & SFLASH_AT_READY); - } + /* Call erase callback */ + if (erase->callback) + erase->callback(erase); - return 0; + return ret; } -/* Write len bytes starting at offset into buf. Returns number of bytes - * written. Caller should poll for completion. - */ -int -sflash_write (sb_t * sbh, chipcregs_t * cc, uint offset, uint len, - const uchar * buf) +#if LINUX_VERSION_CODE < 0x20212 && defined(MODULE) +#define sflash_mtd_init init_module +#define sflash_mtd_exit cleanup_module +#endif + +mod_init_t +sflash_mtd_init(void) { - struct sflash *sfl; - int ret = 0; - bool is4712b0; - uint32 page, byte, mask; - osl_t *osh; - - ASSERT (sbh); - - osh = sb_osh (sbh); - - if (!len) - return 0; - - if ((offset + len) > sflash.size) - return -22; - - sfl = &sflash; - switch (sfl->type) - { - case SFLASH_ST: - is4712b0 = (sbh->chip == BCM4712_CHIP_ID) && (sbh->chiprev == 3); - /* Enable writes */ - sflash_cmd (osh, cc, SFLASH_ST_WREN); - if (is4712b0) - { - mask = 1 << 14; - W_REG (osh, &cc->flashaddress, offset); - W_REG (osh, &cc->flashdata, *buf++); - /* Set chip select */ - OR_REG (osh, &cc->gpioout, mask); - /* Issue a page program with the first byte */ - sflash_cmd (osh, cc, SFLASH_ST_PP); - ret = 1; - offset++; - len--; - while (len > 0) - { - if ((offset & 255) == 0) - { - /* Page boundary, drop cs and return */ - AND_REG (osh, &cc->gpioout, ~mask); - if (!sflash_poll (sbh, cc, offset)) - { - /* Flash rejected command */ - return -11; - } - return ret; - } - else - { - /* Write single byte */ - sflash_cmd (osh, cc, *buf++); - } - ret++; - offset++; - len--; - } - /* All done, drop cs if needed */ - if ((offset & 255) != 1) - { - /* Drop cs */ - AND_REG (osh, &cc->gpioout, ~mask); - if (!sflash_poll (sbh, cc, offset)) - { - /* Flash rejected command */ - return -12; - } - } - } - else if (sbh->ccrev >= 20) - { - W_REG (NULL, &cc->flashaddress, offset); - W_REG (NULL, &cc->flashdata, *buf++); - /* Issue a page program with CSA bit set */ - sflash_cmd (osh, cc, SFLASH_ST_CSA | SFLASH_ST_PP); - ret = 1; - offset++; - len--; - while (len > 0) - { - if ((offset & 255) == 0) - { - /* Page boundary, poll droping cs and return */ - W_REG (NULL, &cc->flashcontrol, 0); - if (!sflash_poll (sbh, cc, offset)) - { - /* Flash rejected command */ - return -11; - } - return ret; - } - else - { - /* Write single byte */ - sflash_cmd (osh, cc, SFLASH_ST_CSA | *buf++); - } - ret++; - offset++; - len--; - } - /* All done, drop cs if needed */ - if ((offset & 255) != 1) - { - /* Drop cs, poll */ - W_REG (NULL, &cc->flashcontrol, 0); - if (!sflash_poll (sbh, cc, offset)) - { - /* Flash rejected command */ - return -12; - } - } - } - else - { - ret = 1; - W_REG (osh, &cc->flashaddress, offset); - W_REG (osh, &cc->flashdata, *buf); - /* Page program */ - sflash_cmd (osh, cc, SFLASH_ST_PP); - } - break; - case SFLASH_AT: - mask = sfl->blocksize - 1; - page = (offset & ~mask) << 1; - byte = offset & mask; - /* Read main memory page into buffer 1 */ - if (byte || (len < sfl->blocksize)) - { - W_REG (osh, &cc->flashaddress, page); - sflash_cmd (osh, cc, SFLASH_AT_BUF1_LOAD); - /* 250 us for AT45DB321B */ - SPINWAIT (sflash_poll (sbh, cc, offset), 1000); - ASSERT (!sflash_poll (sbh, cc, offset)); + struct pci_dev *pdev; + int ret = 0; + struct sflash *info; + uint i; +#ifdef CONFIG_MTD_PARTITIONS + struct mtd_partition *parts; +#endif + + if (!(pdev = pci_find_device(VENDOR_BROADCOM, SB_CC, NULL))) { + printk(KERN_ERR "sflash: chipcommon not found\n"); + return -ENODEV; } - /* Write into buffer 1 */ - for (ret = 0; (ret < (int) len) && (byte < sfl->blocksize); ret++) - { - W_REG (osh, &cc->flashaddress, byte++); - W_REG (osh, &cc->flashdata, *buf++); - sflash_cmd (osh, cc, SFLASH_AT_BUF1_WRITE); - } - /* Write buffer 1 into main memory page */ - W_REG (osh, &cc->flashaddress, page); - sflash_cmd (osh, cc, SFLASH_AT_BUF1_PROGRAM); - break; - } - - return ret; -} -/* Erase a region. Returns number of bytes scheduled for erasure. - * Caller should poll for completion. - */ -int -sflash_erase (sb_t * sbh, chipcregs_t * cc, uint offset) -{ - struct sflash *sfl; - osl_t *osh; - - ASSERT (sbh); - - osh = sb_osh (sbh); - - if (offset >= sflash.size) - return -22; - - sfl = &sflash; - switch (sfl->type) - { - case SFLASH_ST: - sflash_cmd (osh, cc, SFLASH_ST_WREN); - W_REG (osh, &cc->flashaddress, offset); - sflash_cmd (osh, cc, SFLASH_ST_SE); - return sfl->blocksize; - case SFLASH_AT: - W_REG (osh, &cc->flashaddress, offset << 1); - sflash_cmd (osh, cc, SFLASH_AT_PAGE_ERASE); - return sfl->blocksize; - } - - return 0; -} + memset(&sflash, 0, sizeof(struct sflash_mtd)); + init_MUTEX(&sflash.lock); -/* - * writes the appropriate range of flash, a NULL buf simply erases - * the region of flash - */ -int -sflash_commit (sb_t * sbh, chipcregs_t * cc, uint offset, uint len, - const uchar * buf) -{ - struct sflash *sfl; - uchar *block = NULL, *cur_ptr, *blk_ptr; - uint blocksize = 0, mask, cur_offset, cur_length, cur_retlen, remainder; - uint blk_offset, blk_len, copied; - int bytes, ret = 0; - osl_t *osh; - - ASSERT (sbh); - - osh = sb_osh (sbh); - - /* Check address range */ - if (len <= 0) - return 0; - - sfl = &sflash; - if ((offset + len) > sfl->size) - return -1; - - blocksize = sfl->blocksize; - mask = blocksize - 1; - - /* Allocate a block of mem */ - if (!(block = MALLOC (osh, blocksize))) - return -1; - - while (len) - { - /* Align offset */ - cur_offset = offset & ~mask; - cur_length = blocksize; - cur_ptr = block; - - remainder = blocksize - (offset & mask); - if (len < remainder) - cur_retlen = len; - else - cur_retlen = remainder; - - /* buf == NULL means erase only */ - if (buf) - { - /* Copy existing data into holding block if necessary */ - if ((offset & mask) || (len < blocksize)) - { - blk_offset = cur_offset; - blk_len = cur_length; - blk_ptr = cur_ptr; - - /* Copy entire block */ - while (blk_len) - { - copied = - sflash_read (sbh, cc, blk_offset, blk_len, blk_ptr); - blk_offset += copied; - blk_len -= copied; - blk_ptr += copied; - } - } + /* attach to the backplane */ + if (!(sflash.sbh = sb_kattach(SB_OSH))) { + printk(KERN_ERR "sflash: error attaching to backplane\n"); + ret = -EIO; + goto fail; + } - /* Copy input data into holding block */ - memcpy (cur_ptr + (offset & mask), buf, cur_retlen); + /* Map registers and flash base */ + if (!(sflash.cc = ioremap_nocache(pci_resource_start(pdev, 0), + pci_resource_len(pdev, 0)))) { + printk(KERN_ERR "sflash: error mapping registers\n"); + ret = -EIO; + goto fail; } - /* Erase block */ - if ((ret = sflash_erase (sbh, cc, (uint) cur_offset)) < 0) - goto done; - while (sflash_poll (sbh, cc, (uint) cur_offset)); - - /* buf == NULL means erase only */ - if (!buf) - { - offset += cur_retlen; - len -= cur_retlen; - continue; + /* Initialize serial flash access */ + if (!(info = sflash_init(sflash.sbh, sflash.cc))) { + printk(KERN_ERR "sflash: found no supported devices\n"); + ret = -ENODEV; + goto fail; } - /* Write holding block */ - while (cur_length > 0) - { - if ((bytes = sflash_write (sbh, cc, - (uint) cur_offset, - (uint) cur_length, - (uchar *) cur_ptr)) < 0) - { - ret = bytes; - goto done; - } - while (sflash_poll (sbh, cc, (uint) cur_offset)); - cur_offset += bytes; - cur_length -= bytes; - cur_ptr += bytes; + printk(KERN_INFO "sflash: found serial flash; blocksize=%dKB, numblocks=%d, size=%dKB\n",info->blocksize/1024,info->numblocks,info->size/1024); + + /* Setup region info */ + sflash.region.offset = 0; + sflash.region.erasesize = info->blocksize; + sflash.region.numblocks = info->numblocks; + if (sflash.region.erasesize > sflash.mtd.erasesize) + sflash.mtd.erasesize = sflash.region.erasesize; + sflash.mtd.size = info->size; + sflash.mtd.numeraseregions = 1; + + /* Register with MTD */ + sflash.mtd.name = "sflash"; + sflash.mtd.type = MTD_NORFLASH; + sflash.mtd.flags = MTD_CAP_NORFLASH; + sflash.mtd.eraseregions = &sflash.region; + sflash.mtd.module = THIS_MODULE; + sflash.mtd.erase = sflash_mtd_erase; + sflash.mtd.read = sflash_mtd_read; + sflash.mtd.write = sflash_mtd_write; + sflash.mtd.priv = &sflash; + +#ifdef CONFIG_MTD_PARTITIONS + parts = init_mtd_partitions(&sflash.mtd, sflash.mtd.size); + for (i = 0; parts[i].name; i++); + ret = add_mtd_partitions(&sflash.mtd, parts, i); +#else + ret = add_mtd_device(&sflash.mtd); +#endif + if (ret) { + printk(KERN_ERR "sflash: add_mtd failed\n"); + goto fail; } - offset += cur_retlen; - len -= cur_retlen; - buf += cur_retlen; - } + return 0; + + fail: + if (sflash.cc) + iounmap((void *) sflash.cc); + if (sflash.sbh) + sb_detach(sflash.sbh); + return ret; +} - ret = len; -done: - if (block) - MFREE (osh, block, blocksize); - return ret; +mod_exit_t +sflash_mtd_exit(void) +{ +#ifdef CONFIG_MTD_PARTITIONS + del_mtd_partitions(&sflash.mtd); +#else + del_mtd_device(&sflash.mtd); +#endif + iounmap((void *) sflash.cc); + sb_detach(sflash.sbh); } + +module_init(sflash_mtd_init); +module_exit(sflash_mtd_exit); diff --git a/target/linux/brcm-2.4/patches/004-flash.patch b/target/linux/brcm-2.4/patches/004-flash.patch index f34efb0146..7de8a82eb6 100644 --- a/target/linux/brcm-2.4/patches/004-flash.patch +++ b/target/linux/brcm-2.4/patches/004-flash.patch @@ -1,3 +1,13 @@ +--- a/arch/mips/bcm947xx/Makefile ++++ b/arch/mips/bcm947xx/Makefile +@@ -11,6 +11,7 @@ + obj-y := prom.o setup.o time.o sbmips.o gpio.o + obj-y += nvram.o nvram_linux.o cfe_env.o hndpmu.o + obj-y += sbutils.o utils.o bcmsrom.o hndchipc.o ++obj-y += sflash.o + obj-$(CONFIG_PCI) += sbpci.o pcibios.o + obj-y += export.o + --- a/drivers/mtd/devices/Config.in +++ b/drivers/mtd/devices/Config.in @@ -5,6 +5,7 @@ |