--- /dev/null
+/*
+ * 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_ */
--- /dev/null
+/*
+ * 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;
+}
/*
* 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);
+--- 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 @@
projects / openwrt / staging / wigyori.git / commitdiff