diff options
Diffstat (limited to 'board/hymod')
| -rw-r--r-- | board/hymod/eeprom.c | 597 | ||||
| -rw-r--r-- | board/hymod/flash.c | 745 |
2 files changed, 1342 insertions, 0 deletions
diff --git a/board/hymod/eeprom.c b/board/hymod/eeprom.c new file mode 100644 index 0000000..9d50646 --- /dev/null +++ b/board/hymod/eeprom.c @@ -0,0 +1,597 @@ +/* + * (C) Copyright 2001 + * Murray Jensen, CSIRO Manufacturing Science and Technology, + * <Murray.Jensen@cmst.csiro.au> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc8260.h> + +/* imports from fetch.c */ +extern int fetch_and_parse(bd_t *, char *, ulong, int (*)(uchar *, uchar *)); + +int +eeprom_load(unsigned offset, hymod_eeprom_t *ep) +{ + uchar data[HYMOD_EEPROM_SIZE], *dp, *edp; + hymod_eehdr_t *hp; + ulong len, crc; + + memset(ep, 0, sizeof *ep); + memset(data, 0, HYMOD_EEPROM_SIZE); + crc = 0; + + hp = (hymod_eehdr_t *)data; + eeprom_read(CFG_DEF_EEPROM_ADDR, offset, (uchar *)hp, sizeof (*hp)); + offset += sizeof (*hp); + + if (hp->id != HYMOD_EEPROM_ID || hp->ver > HYMOD_EEPROM_VER || + (len = hp->len) > HYMOD_EEPROM_MAXLEN) + return (0); + + dp = (uchar *)(hp + 1); edp = dp + len; + eeprom_read(CFG_DEF_EEPROM_ADDR, offset, dp, len); + offset += len; + + eeprom_read(CFG_DEF_EEPROM_ADDR, offset, (uchar *)&crc, sizeof (ulong)); + + if (crc32(0, data, edp - data) != crc) + return (0); + + ep->ver = hp->ver; + + for (;;) { + hymod_eerec_t *rp = (hymod_eerec_t *)dp; + ulong rtyp; + uchar rlen, *rdat; + uint rsiz; + + if (rp->small.topbit == 0) { + rtyp = rp->small.type; + rlen = rp->small.len; + rdat = rp->small.data; + rsiz = offsetof(hymod_eerec_t, small.data) + rlen; + } + else if (rp->medium.nxtbit == 0) { + rtyp = rp->medium.type; + rlen = rp->medium.len; + rdat = rp->medium.data; + rsiz = offsetof(hymod_eerec_t, medium.data) + rlen; + } + else { + rtyp = rp->large.type; + rlen = rp->large.len; + rdat = rp->large.data; + rsiz = offsetof(hymod_eerec_t, large.data) + rlen; + } + + if (rtyp == 0) + break; + + dp += rsiz; + if (dp > edp) /* error? */ + break; + + switch (rtyp) { + + case HYMOD_EEREC_SERNO: /* serial number */ + if (rlen == sizeof (ulong)) + memcpy(&ep->serno, rdat, sizeof (ulong)); + break; + + case HYMOD_EEREC_DATE: /* date */ + if (rlen == sizeof (hymod_date_t)) + memcpy(&ep->date, rdat, sizeof (hymod_date_t)); + break; + + case HYMOD_EEREC_BATCH: /* batch */ + if (rlen <= HYMOD_MAX_BATCH) + memcpy(ep->batch, rdat, ep->batchlen = rlen); + break; + + case HYMOD_EEREC_TYPE: /* board type */ + if (rlen == 1) + ep->bdtype = *rdat; + break; + + case HYMOD_EEREC_REV: /* board revision */ + if (rlen == 1) + ep->bdrev = *rdat; + break; + + case HYMOD_EEREC_SDRAM: /* sdram size(s) */ + if (rlen > 0 && rlen <= HYMOD_MAX_SDRAM) { + int i; + + for (i = 0; i < rlen; i++) + ep->sdramsz[i] = rdat[i]; + ep->nsdram = rlen; + } + break; + + case HYMOD_EEREC_FLASH: /* flash size(s) */ + if (rlen > 0 && rlen <= HYMOD_MAX_FLASH) { + int i; + + for (i = 0; i < rlen; i++) + ep->flashsz[i] = rdat[i]; + ep->nflash = rlen; + } + break; + + case HYMOD_EEREC_ZBT: /* zbt ram size(s) */ + if (rlen > 0 && rlen <= HYMOD_MAX_ZBT) { + int i; + + for (i = 0; i < rlen; i++) + ep->zbtsz[i] = rdat[i]; + ep->nzbt = rlen; + } + break; + + case HYMOD_EEREC_XLXTYP: /* xilinx fpga type(s) */ + if (rlen > 0 && rlen <= HYMOD_MAX_XLX) { + int i; + + for (i = 0; i < rlen; i++) + ep->xlx[i].type = rdat[i]; + ep->nxlx = rlen; + } + break; + + case HYMOD_EEREC_XLXSPD: /* xilinx fpga speed(s) */ + if (rlen > 0 && rlen <= HYMOD_MAX_XLX) { + int i; + + for (i = 0; i < rlen; i++) + ep->xlx[i].speed = rdat[i]; + } + break; + + case HYMOD_EEREC_XLXTMP: /* xilinx fpga temperature(s) */ + if (rlen > 0 && rlen <= HYMOD_MAX_XLX) { + int i; + + for (i = 0; i < rlen; i++) + ep->xlx[i].temp = rdat[i]; + } + break; + + case HYMOD_EEREC_XLXGRD: /* xilinx fpga grade(s) */ + if (rlen > 0 && rlen <= HYMOD_MAX_XLX) { + int i; + + for (i = 0; i < rlen; i++) + ep->xlx[i].grade = rdat[i]; + } + break; + + case HYMOD_EEREC_CPUTYP: /* CPU type */ + if (rlen == 1) + ep->mpc.type = *rdat; + break; + + case HYMOD_EEREC_CPUSPD: /* CPU speed */ + if (rlen == 1) + ep->mpc.cpuspd = *rdat; + break; + + case HYMOD_EEREC_CPMSPD: /* CPM speed */ + if (rlen == 1) + ep->mpc.cpmspd = *rdat; + break; + + case HYMOD_EEREC_BUSSPD: /* bus speed */ + if (rlen == 1) + ep->mpc.busspd = *rdat; + break; + + case HYMOD_EEREC_HSTYPE: /* high-speed serial chip type */ + if (rlen == 1) + ep->hss.type = *rdat; + break; + + case HYMOD_EEREC_HSCHIN: /* high-speed serial input channels */ + if (rlen == 1) + ep->hss.nchin = *rdat; + break; + + case HYMOD_EEREC_HSCHOUT: /* high-speed serial output channels */ + if (rlen == 1) + ep->hss.nchout = *rdat; + break; + + default: /* ignore */ + break; + } + } + + return (1); +} + +/* maps an ascii "name=value" into a binary eeprom data record */ +typedef + struct _eerec_map { + char *name; + uint type; + uchar *(*handler)(struct _eerec_map *, uchar *, uchar *, uchar *); + uint length; + uint maxlen; + } +eerec_map_t; + +static uchar * +uint_handler(eerec_map_t *rp, uchar *value, uchar *dp, uchar *edp) +{ + uchar *eval; + union { + uchar cval[4]; + ushort sval[2]; + ulong lval; + } rdata; + + rdata.lval = simple_strtol(value, (char **)&eval, 10); + + if (eval == value || *eval != '\0') { + printf("%s record (%s) is not a valid uint\n", rp->name, value); + return (NULL); + } + + if (dp + 2 + rp->length > edp) { + printf("can't fit %s record into eeprom\n", rp->name); + return (NULL); + } + + *dp++ = rp->type; + *dp++ = rp->length; + + switch (rp->length) { + + case 1: + if (rdata.lval >= 256) { + printf("%s record value (%lu) out of range (0-255)\n", + rp->name, rdata.lval); + return (NULL); + } + *dp++ = rdata.cval[3]; + break; + + case 2: + if (rdata.lval >= 65536) { + printf("%s record value (%lu) out of range (0-65535)\n", + rp->name, rdata.lval); + return (NULL); + } + memcpy(dp, &rdata.sval[1], 2); + dp += 2; + break; + + case 4: + memcpy(dp, &rdata.lval, 4); + dp += 4; + break; + + default: + printf("huh? rp->length not 1, 2 or 4! (%d)\n", rp->length); + return (NULL); + } + + return (dp); +} + +static uchar * +date_handler(eerec_map_t *rp, uchar *value, uchar *dp, uchar *edp) +{ + hymod_date_t date; + uchar *p = value, *ep; + + date.year = simple_strtol(p, (char **)&ep, 10); + if (ep == p || *ep++ != '-') { +bad_date: + printf("%s record (%s) is not a valid date\n", rp->name, value); + return (NULL); + } + + date.month = simple_strtol(p = ep, (char **)&ep, 10); + if (ep == p || *ep++ != '-' || date.month == 0 || date.month > 12) + goto bad_date; + + date.day = simple_strtol(p = ep, (char **)&ep, 10); + if (ep == p || *ep != '\0' || date.day == 0 || date.day > 31) + goto bad_date; + + if (dp + 2 + sizeof (hymod_date_t) > edp) { + printf("can't fit %s record into eeprom\n", rp->name); + return (NULL); + } + + *dp++ = rp->type; + *dp++ = sizeof (hymod_date_t); + memcpy(dp, &date, sizeof (hymod_date_t)); + dp += sizeof (hymod_date_t); + + return (dp); +} + +static uchar * +string_handler(eerec_map_t *rp, uchar *value, uchar *dp, uchar *edp) +{ + uint len; + + if ((len = strlen(value)) > rp->maxlen) { + printf("%s record (%s) string is too long (%d>%d)\n", + rp->name, value, len, rp->maxlen); + return (NULL); + } + + if (dp + 2 + len > edp) { + printf("can't fit %s record into eeprom\n", rp->name); + return (NULL); + } + + *dp++ = rp->type; + *dp++ = len; + memcpy(dp, value, len); + dp += len; + + return (dp); +} + +static uchar * +bytes_handler(eerec_map_t *rp, uchar *value, uchar *dp, uchar *edp) +{ + uchar bytes[HYMOD_MAX_BYTES], nbytes = 0; + uchar *p = value, *ep; + + for (;;) { + + if (nbytes >= HYMOD_MAX_BYTES) { + printf("%s record (%s) byte array too long\n", rp->name, value); + return (NULL); + } + + bytes[nbytes++] = simple_strtol(p, (char **)&ep, 10); + + if (ep == p || (*ep != '\0' && *ep != ',')) { + printf("%s record (%s) byte array has invalid uint\n", + rp->name, value); + return (NULL); + } + + if (*ep++ == '\0') + break; + + p = ep; + } + + if (dp + 2 + nbytes > edp) { + printf("can't fit %s record into eeprom\n", rp->name); + return (NULL); + } + + *dp++ = rp->type; + *dp++ = nbytes; + memcpy(dp, bytes, nbytes); + dp += nbytes; + + return (dp); +} + +static eerec_map_t eerec_map[] = { + /* name type handler len max */ + { "serno", HYMOD_EEREC_SERNO, uint_handler, 4, 0 }, + { "date", HYMOD_EEREC_DATE, date_handler, 4, 0 }, + { "batch", HYMOD_EEREC_BATCH, string_handler, 0, HYMOD_MAX_BATCH }, + { "type", HYMOD_EEREC_TYPE, uint_handler, 1, 0 }, + { "rev", HYMOD_EEREC_REV, uint_handler, 1, 0 }, + { "sdram", HYMOD_EEREC_SDRAM, bytes_handler, 0, HYMOD_MAX_SDRAM }, + { "flash", HYMOD_EEREC_FLASH, bytes_handler, 0, HYMOD_MAX_FLASH }, + { "zbt", HYMOD_EEREC_ZBT, bytes_handler, 0, HYMOD_MAX_ZBT }, + { "xlxtyp", HYMOD_EEREC_XLXTYP, bytes_handler, 0, HYMOD_MAX_XLX }, + { "xlxspd", HYMOD_EEREC_XLXSPD, bytes_handler, 0, HYMOD_MAX_XLX }, + { "xlxtmp", HYMOD_EEREC_XLXTMP, bytes_handler, 0, HYMOD_MAX_XLX }, + { "xlxgrd", HYMOD_EEREC_XLXGRD, bytes_handler, 0, HYMOD_MAX_XLX }, + { "cputyp", HYMOD_EEREC_CPUTYP, uint_handler, 1, 0 }, + { "cpuspd", HYMOD_EEREC_CPUSPD, uint_handler, 1, 0 }, + { "cpmspd", HYMOD_EEREC_CPMSPD, uint_handler, 1, 0 }, + { "busspd", HYMOD_EEREC_BUSSPD, uint_handler, 1, 0 }, + { "hstype", HYMOD_EEREC_HSTYPE, uint_handler, 1, 0 }, + { "hschin", HYMOD_EEREC_HSCHIN, uint_handler, 1, 0 }, + { "hschout", HYMOD_EEREC_HSCHOUT, uint_handler, 1, 0 }, +}; + +static int neerecs = sizeof eerec_map / sizeof eerec_map[0]; + +static uchar data[HYMOD_EEPROM_SIZE], *sdp, *dp, *edp; + +static int +eeprom_fetch_callback(uchar *name, uchar *value) +{ + eerec_map_t *rp; + + for (rp = eerec_map; rp < &eerec_map[neerecs]; rp++) + if (strcmp(name, rp->name) == 0) + break; + + if (rp >= &eerec_map[neerecs]) + return (0); + + if ((dp = (*rp->handler)(rp, value, dp, edp)) == NULL) + return (0); + + return (1); +} + +int +eeprom_fetch(unsigned offset, bd_t *bd, char *filename, ulong addr) +{ + hymod_eehdr_t *hp = (hymod_eehdr_t *)&data[0]; + ulong crc; + + hp->id = HYMOD_EEPROM_ID; + hp->ver = HYMOD_EEPROM_VER; + + dp = sdp = (uchar *)(hp + 1); + edp = dp + HYMOD_EEPROM_MAXLEN; + + if (fetch_and_parse(bd, filename, addr, eeprom_fetch_callback) == 0) + return (0); + + hp->len = dp - sdp; + + crc = crc32(0, data, dp - data); + memcpy(dp, &crc, sizeof (ulong)); + dp += sizeof (ulong); + + eeprom_write(CFG_DEF_EEPROM_ADDR, offset, data, dp - data); + + return (1); +} + +static char *type_vals[] = { + "NONE", "IO", "CLP", "DSP", "INPUT", "ALT-INPUT", "DISPLAY" +}; + +static char *xlxtyp_vals[] = { + "NONE", "XCV300E", "XCV400E", "XCV600E" +}; + +static char *xlxspd_vals[] = { + "NONE", "6", "7", "8" +}; + +static char *xlxtmp_vals[] = { + "NONE", "COM", "IND" +}; + +static char *xlxgrd_vals[] = { + "NONE", "NORMAL", "ENGSAMP" +}; + +static char *cputyp_vals[] = { + "NONE", "MPC8260" +}; + +static char *clk_vals[] = { + "NONE", "33", "66", "100", "133", "166", "200" +}; + +static char *hstype_vals[] = { + "NONE", "AMCC-S2064A" +}; + +static void +print_mem(char *l, char *s, uchar n, uchar a[]) +{ + if (n > 0) { + if (n == 1) + printf("%s%dMB %s", s, 1 << (a[0] - 20), l); + else { + ulong t = 0; + int i; + + for (i = 0; i < n; i++) + t += 1 << (a[i] - 20); + + printf("%s%luMB %s (%d banks:", s, t, l, n); + + for (i = 0; i < n; i++) + printf("%dMB%s", 1 << (a[i] - 20), (i == n - 1) ? ")" : ","); + } + } + else + printf("%sNO %s", s, l); +} + +void +eeprom_print(hymod_eeprom_t *ep) +{ + int i; + + printf(" Hymod %s board, rev %03d\n", + type_vals[ep->bdtype], ep->bdrev); + + printf(" serial #: %010lu, date %04d-%02d-%02d", + ep->serno, ep->date.year, ep->date.month, ep->date.day); + if (ep->batchlen > 0) + printf(", batch \"%.*s\"", ep->batchlen, ep->batch); + puts("\n"); + + switch (ep->bdtype) { + + case HYMOD_BDTYPE_IO: + case HYMOD_BDTYPE_CLP: + case HYMOD_BDTYPE_DSP: + printf(" Motorola %s CPU, speeds: %s/%s/%s", + cputyp_vals[ep->mpc.type], clk_vals[ep->mpc.cpuspd], + clk_vals[ep->mpc.cpmspd], clk_vals[ep->mpc.busspd]); + + print_mem("SDRAM", ", ", ep->nsdram, ep->sdramsz); + + print_mem("FLASH", ", ", ep->nflash, ep->flashsz); + + puts("\n"); + + print_mem("ZBT", " ", ep->nzbt, ep->zbtsz); + + if (ep->nxlx > 0) { + hymod_xlx_t *xp; + + if (ep->nxlx == 1) { + xp = &ep->xlx[0]; + printf(", Xilinx %s FPGA (%s/%s/%s)", + xlxtyp_vals[xp->type], xlxspd_vals[xp->speed], + xlxtmp_vals[xp->temp], xlxgrd_vals[xp->grade]); + } + else { + printf(", %d Xilinx FPGAs (", ep->nxlx); + for (i = 0; i < ep->nxlx; i++) { + xp = &ep->xlx[i]; + printf("%s[%s/%s/%s]%s", + xlxtyp_vals[xp->type], xlxspd_vals[xp->speed], + xlxtmp_vals[xp->temp], xlxgrd_vals[xp->grade], + (i == ep->nxlx - 1) ? ")" : ", "); + } + } + } + else + puts(", NO FPGAs"); + + puts("\n"); + + if (ep->hss.type > 0) + printf(" High Speed Serial: %s, %d input%s, %d output%s\n", + hstype_vals[ep->hss.type], + ep->hss.nchin, (ep->hss.nchin == 1 ? "" : "s"), + ep->hss.nchout, (ep->hss.nchout == 1 ? "" : "s")); + break; + + case HYMOD_BDTYPE_INPUT: + case HYMOD_BDTYPE_ALTINPUT: + case HYMOD_BDTYPE_DISPLAY: + break; + + default: + /* crap! */ + printf(" UNKNOWN BOARD TYPE: %d\n", ep->bdtype); + break; + } +} diff --git a/board/hymod/flash.c b/board/hymod/flash.c new file mode 100644 index 0000000..ee052e3 --- /dev/null +++ b/board/hymod/flash.c @@ -0,0 +1,745 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Hacked for the Hymod board by Murray.Jensen@cmst.csiro.au, 20-Oct-00 + */ + +#include <common.h> +#include <mpc8260.h> +#include <board/hymod/flash.h> + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ + +/*----------------------------------------------------------------------- + * Protection Flags: + */ +#define FLAG_PROTECT_SET 0x01 +#define FLAG_PROTECT_CLEAR 0x02 + +/*----------------------------------------------------------------------- + * Functions + */ +#if 0 +static ulong flash_get_size (vu_long *addr, flash_info_t *info); +static void flash_get_offsets (ulong base, flash_info_t *info); +#endif +static int write_word (flash_info_t *info, ulong dest, ulong data); + +/*----------------------------------------------------------------------- + */ + +/* + * probe for the existence of flash at bank word address "addr" + * 0 = yes, 1 = bad Manufacturer's Id, 2 = bad Device Id + */ +static int +bank_probe_word(bank_addr_t addr) +{ + int retval; + + /* reset the flash */ + *addr = BANK_CMD_RST; + + /* check the manufacturer id */ + *addr = BANK_CMD_RD_ID; + if (*BANK_ADDR_REG_MAN(addr) != BANK_RD_ID_MAN) { + retval = -1; + goto out; + } + + /* check the device id */ + *addr = BANK_CMD_RD_ID; + if (*BANK_ADDR_REG_DEV(addr) != BANK_RD_ID_DEV) { + retval = -2; + goto out; + } + + retval = CFG_FLASH_TYPE; + +out: + /* reset the flash again */ + *addr = BANK_CMD_RST; + + return retval; +} + +/* + * probe for flash banks at address "base" and store info for any found + * into flash_info entry "fip". Must find at least one bank. + */ +static void +bank_probe(flash_info_t *fip, bank_addr_t base) +{ + bank_addr_t addr, eaddr; + int nbanks; + + fip->flash_id = FLASH_UNKNOWN; + fip->size = 0L; + fip->sector_count = 0; + + addr = base; + eaddr = BANK_ADDR_BASE(addr, MAX_BANKS); + nbanks = 0; + + while (addr < eaddr) { + bank_addr_t addrw, eaddrw, addrb; + int i, osc, nsc, curtype = -1; + + addrw = addr; + eaddrw = BANK_ADDR_NEXT_WORD(addrw); + + while (addrw < eaddrw) { + int thistype; + +#ifdef FLASH_DEBUG + printf(" probing for flash at addr 0x%08lx\n", + (unsigned long)addrw); +#endif + if ((thistype = bank_probe_word(addrw++)) < 0) + goto out; + + if (curtype < 0) + curtype = thistype; + else { + if (thistype != curtype) { + printf("Differing flash type found!\n"); + goto out; + } + } + } + + if (curtype < 0) + goto out; + + /* bank exists - append info for this bank to *fip */ + fip->flash_id = FLASH_MAN_INTEL|curtype; + fip->size += BANK_SIZE; + osc = fip->sector_count; + fip->sector_count += BANK_NBLOCKS; + if ((nsc = fip->sector_count) >= CFG_MAX_FLASH_SECT) + panic("Too many sectors in flash at address 0x%08lx\n", + (unsigned long)base); + + addrb = addr; + for (i = osc; i < nsc; i++) { + fip->start[i] = (ulong)addrb; + fip->protect[i] = 0; + addrb = BANK_ADDR_NEXT_BLK(addrb); + } + + addr = BANK_ADDR_NEXT_BANK(addr); + nbanks++; + } + +out: + if (nbanks == 0) + panic("ERROR: no flash found at address 0x%08lx\n", + (unsigned long)base); +} + +static void +bank_reset(flash_info_t *info, int sect) +{ + bank_addr_t addrw, eaddrw; + + addrw = (bank_addr_t)info->start[sect]; + eaddrw = BANK_ADDR_NEXT_WORD(addrw); + + while (addrw < eaddrw) { +#ifdef FLASH_DEBUG + printf(" writing reset cmd to addr 0x%08lx\n", + (unsigned long)addrw); +#endif + *addrw = BANK_CMD_RST; + addrw++; + } +} + +static void +bank_erase_init(flash_info_t *info, int sect) +{ + bank_addr_t addrw, saddrw, eaddrw; + int flag; + +#ifdef FLASH_DEBUG + printf("0x%08lx BANK_CMD_PROG\n", BANK_CMD_PROG); + printf("0x%08lx BANK_CMD_ERASE1\n", BANK_CMD_ERASE1); + printf("0x%08lx BANK_CMD_ERASE2\n", BANK_CMD_ERASE2); + printf("0x%08lx BANK_CMD_CLR_STAT\n", BANK_CMD_CLR_STAT); + printf("0x%08lx BANK_CMD_RST\n", BANK_CMD_RST); + printf("0x%08lx BANK_STAT_RDY\n", BANK_STAT_RDY); + printf("0x%08lx BANK_STAT_ERR\n", BANK_STAT_ERR); +#endif + + saddrw = (bank_addr_t)info->start[sect]; + eaddrw = BANK_ADDR_NEXT_WORD(saddrw); + +#ifdef FLASH_DEBUG + printf("erasing sector %d, start addr = 0x%08lx " + "(bank next word addr = 0x%08lx)\n", sect, + (unsigned long)saddrw, (unsigned long)eaddrw); +#endif + + /* Disable intrs which might cause a timeout here */ + flag = disable_interrupts(); + + for (addrw = saddrw; addrw < eaddrw; addrw++) { +#ifdef FLASH_DEBUG + printf(" writing erase cmd to addr 0x%08lx\n", + (unsigned long)addrw); +#endif + *addrw = BANK_CMD_ERASE1; + *addrw = BANK_CMD_ERASE2; + } + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); +} + +static int +bank_erase_poll(flash_info_t *info, int sect) +{ + bank_addr_t addrw, saddrw, eaddrw; + int sectdone, haderr; + + saddrw = (bank_addr_t)info->start[sect]; + eaddrw = BANK_ADDR_NEXT_WORD(saddrw); + + sectdone = 1; + haderr = 0; + + for (addrw = saddrw; addrw < eaddrw; addrw++) { + bank_word_t stat = *addrw; + +#ifdef FLASH_DEBUG + printf(" checking status at addr " + "0x%08lx [0x%08lx]\n", + (unsigned long)addrw, stat); +#endif + if ((stat & BANK_STAT_RDY) != BANK_STAT_RDY) + sectdone = 0; + else if ((stat & BANK_STAT_ERR) != 0) { + printf(" failed on sector %d " + "(stat = 0x%08lx) at " + "address 0x%08lx\n", + sect, stat, + (unsigned long)addrw); + *addrw = BANK_CMD_CLR_STAT; + haderr = 1; + } + } + + if (haderr) + return (-1); + else + return (sectdone); +} + +static int +bank_write_word(bank_addr_t addr, bank_word_t value) +{ + bank_word_t stat; + ulong start; + int flag, retval; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + + *addr = BANK_CMD_PROG; + + *addr = value; + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + retval = 0; + + /* data polling for D7 */ + start = get_timer (0); + do { + if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { + retval = 1; + goto done; + } + stat = *addr; + } while ((stat & BANK_STAT_RDY) != BANK_STAT_RDY); + + if ((stat & BANK_STAT_ERR) != 0) { + printf("flash program failed (stat = 0x%08lx) " + "at address 0x%08lx\n", (ulong)stat, (ulong)addr); + *addr = BANK_CMD_CLR_STAT; + retval = 3; + } + +done: + /* reset to read mode */ + *addr = BANK_CMD_RST; + + return (retval); +} + +/*----------------------------------------------------------------------- + */ + +unsigned long +flash_init(void) +{ + int i; + + /* Init: no FLASHes known */ + for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) { + flash_info[i].flash_id = FLASH_UNKNOWN; + } + + bank_probe(&flash_info[0], (bank_addr_t)CFG_FLASH_BASE); + + /* + * protect monitor and environment sectors + */ + +#if CFG_MONITOR_BASE == CFG_FLASH_BASE + (void)flash_protect(FLAG_PROTECT_SET, + CFG_MONITOR_BASE, + CFG_MONITOR_BASE+CFG_MONITOR_LEN-1, + &flash_info[0]); +#endif + +#if defined(CFG_FLASH_ENV_ADDR) + (void)flash_protect(FLAG_PROTECT_SET, + CFG_FLASH_ENV_ADDR, +#if defined(CFG_FLASH_ENV_BUF) + CFG_FLASH_ENV_ADDR + CFG_FLASH_ENV_BUF - 1, +#else + CFG_FLASH_ENV_ADDR + CFG_FLASH_ENV_SIZE - 1, +#endif + &flash_info[0]); +#endif + + return flash_info[0].size; +} + +/*----------------------------------------------------------------------- + */ +#if 0 +static void +flash_get_offsets(ulong base, flash_info_t *info) +{ + int i; + + /* set up sector start adress table */ + if (info->flash_id & FLASH_BTYPE) { + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00008000; + info->start[2] = base + 0x0000C000; + info->start[3] = base + 0x00010000; + for (i = 4; i < info->sector_count; i++) { + info->start[i] = base + (i * 0x00020000) - 0x00060000; + } + } else { + /* set sector offsets for top boot block type */ + i = info->sector_count - 1; + info->start[i--] = base + info->size - 0x00008000; + info->start[i--] = base + info->size - 0x0000C000; + info->start[i--] = base + info->size - 0x00010000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00020000; + } + } + +} +#endif /* 0 */ + +/*----------------------------------------------------------------------- + */ +void +flash_print_info(flash_info_t *info) +{ + int i; + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_INTEL: printf ("INTEL "); break; + default: printf ("Unknown Vendor "); break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_28F320J5: printf ("28F320J5 (32 Mbit, 2 x 16bit)\n"); + break; + default: printf ("Unknown Chip Type\n"); + break; + } + + printf (" Size: %ld MB in %d Sectors\n", + info->size >> 20, info->sector_count); + + printf (" Sector Start Addresses:"); + for (i=0; i<info->sector_count; ++i) { + if ((i % 5) == 0) + printf ("\n "); + printf (" %08lX%s", + info->start[i], + info->protect[i] ? " (RO)" : " " + ); + } + printf ("\n"); + return; +} + +/*----------------------------------------------------------------------- + */ + +/* + * The following code cannot be run from FLASH! + */ +#if 0 +static ulong +flash_get_size(vu_long *addr, flash_info_t *info) +{ + short i; + ulong value; + ulong base = (ulong)addr; + + + /* Write auto select command: read Manufacturer ID */ + addr[0x0555] = 0x00AA00AA; + addr[0x02AA] = 0x00550055; + addr[0x0555] = 0x00900090; + + value = addr[0]; + + switch (value) { + case AMD_MANUFACT: + info->flash_id = FLASH_MAN_AMD; + break; + case FUJ_MANUFACT: + info->flash_id = FLASH_MAN_FUJ; + break; + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + return (0); /* no or unknown flash */ + } + + value = addr[1]; /* device ID */ + + switch (value) { + case AMD_ID_LV400T: + info->flash_id += FLASH_AM400T; + info->sector_count = 11; + info->size = 0x00100000; + break; /* => 1 MB */ + + case AMD_ID_LV400B: + info->flash_id += FLASH_AM400B; + info->sector_count = 11; + info->size = 0x00100000; + break; /* => 1 MB */ + + case AMD_ID_LV800T: + info->flash_id += FLASH_AM800T; + info->sector_count = 19; + info->size = 0x00200000; + break; /* => 2 MB */ + + case AMD_ID_LV800B: + info->flash_id += FLASH_AM800B; + info->sector_count = 19; + info->size = 0x00200000; + break; /* => 2 MB */ + + case AMD_ID_LV160T: + info->flash_id += FLASH_AM160T; + info->sector_count = 35; + info->size = 0x00400000; + break; /* => 4 MB */ + + case AMD_ID_LV160B: + info->flash_id += FLASH_AM160B; + info->sector_count = 35; + info->size = 0x00400000; + break; /* => 4 MB */ +#if 0 /* enable when device IDs are available */ + case AMD_ID_LV320T: + info->flash_id += FLASH_AM320T; + info->sector_count = 67; + info->size = 0x00800000; + break; /* => 8 MB */ + + case AMD_ID_LV320B: + info->flash_id += FLASH_AM320B; + info->sector_count = 67; + info->size = 0x00800000; + break; /* => 8 MB */ +#endif + default: + info->flash_id = FLASH_UNKNOWN; + return (0); /* => no or unknown flash */ + + } + + /* set up sector start adress table */ + if (info->flash_id & FLASH_BTYPE) { + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00008000; + info->start[2] = base + 0x0000C000; + info->start[3] = base + 0x00010000; + for (i = 4; i < info->sector_count; i++) { + info->start[i] = base + (i * 0x00020000) - 0x00060000; + } + } else { + /* set sector offsets for top boot block type */ + i = info->sector_count - 1; + info->start[i--] = base + info->size - 0x00008000; + info->start[i--] = base + info->size - 0x0000C000; + info->start[i--] = base + info->size - 0x00010000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00020000; + } + } + + /* check for protected sectors */ + for (i = 0; i < info->sector_count; i++) { + /* read sector protection at sector address, (A7 .. A0) = 0x02 */ + /* D0 = 1 if protected */ + addr = (volatile unsigned long *)(info->start[i]); + info->protect[i] = addr[2] & 1; + } + + /* + * Prevent writes to uninitialized FLASH. + */ + if (info->flash_id != FLASH_UNKNOWN) { + addr = (volatile unsigned long *)info->start[0]; + + *addr = 0x00F000F0; /* reset bank */ + } + + return (info->size); +} +#endif /* 0 */ + + +/*----------------------------------------------------------------------- + */ + +int +flash_erase(flash_info_t *info, int s_first, int s_last) +{ + int prot, sect, haderr; + ulong start, now, last; + int rcode = 0; + +#ifdef FLASH_DEBUG + printf("\nflash_erase: erase %d sectors (%d to %d incl.) from\n" + " Bank # %d: ", s_last - s_first + 1, s_first, s_last, + (info - flash_info) + 1); + flash_print_info(info); +#endif + + if ((s_first < 0) || (s_first > s_last)) { + if (info->flash_id == FLASH_UNKNOWN) { + printf ("- missing\n"); + } else { + printf ("- no sectors to erase\n"); + } + return 1; + } + + prot = 0; + for (sect=s_first; sect<=s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + + if (prot) { + printf("- Warning: %d protected sector%s will not be erased!\n", + prot, (prot > 1 ? "s" : "")); + } + + start = get_timer (0); + last = 0; + haderr = 0; + + for (sect = s_first; sect <= s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + ulong estart; + int sectdone; + + bank_erase_init(info, sect); + + /* wait at least 80us - let's wait 1 ms */ + udelay (1000); + + estart = get_timer(start); + + do { + now = get_timer(start); + + if (now - estart > CFG_FLASH_ERASE_TOUT) { + printf ("Timeout (sect %d)\n", sect); + haderr = 1; + rcode = 1; + break; + } + +#ifndef FLASH_DEBUG + /* show that we're waiting */ + if ((now - last) > 1000) { /* every second */ + putc ('.'); + last = now; + } +#endif + + sectdone = bank_erase_poll(info, sect); + + if (sectdone < 0) { + haderr = 1; + rcode = 1; + break; + } + + } while (!sectdone); + + if (haderr) + break; + } + } + + if (haderr > 0) + printf (" failed\n"); + else + printf (" done\n"); + + /* reset to read mode */ + for (sect = s_first; sect <= s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + bank_reset(info, sect); + } + } + return rcode; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ + +int +write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp, data; + int i, l, rc; + + wp = (addr & ~3); /* get lower word aligned address */ + + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + data = 0; + for (i=0, cp=wp; i<l; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + for (; i<4 && cnt>0; ++i) { + data = (data << 8) | *src++; + --cnt; + ++cp; + } + for (; cnt==0 && i<4; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 4; + } + + /* + * handle word aligned part + */ + while (cnt >= 4) { + data = 0; + for (i=0; i<4; ++i) { + data = (data << 8) | *src++; + } + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 4; + cnt -= 4; + } + + if (cnt == 0) { + return (0); + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i<4; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + + return (write_word(info, wp, data)); +} + +/*----------------------------------------------------------------------- + * Write a word to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +static int +write_word(flash_info_t *info, ulong dest, ulong data) +{ + int retval; + + /* Check if Flash is (sufficiently) erased */ + if ((*(ulong *)dest & data) != data) { + return (2); + } + + retval = bank_write_word((bank_addr_t)dest, (bank_word_t)data); + + return (retval); +} + +/*----------------------------------------------------------------------- + */ |