X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=board%2Fintegratorcp%2Fflash.c;h=59961cdab6efa0933a83eb7e65f17867dd1d20e1;hb=4b326101d6cfaeab8250988bc4c7f51e6c92d719;hp=b120d63eb9f0068879b967cd85ea55e7f2dae372;hpb=3d3befa754fedb320f779320ac0ab11deb0a6275;p=u-boot diff --git a/board/integratorcp/flash.c b/board/integratorcp/flash.c index b120d63eb9..59961cdab6 100644 --- a/board/integratorcp/flash.c +++ b/board/integratorcp/flash.c @@ -1,4 +1,7 @@ /* + * (C) Copyright 2004 + * Xiaogeng (Shawn) Jin, Agilent Technologies, xiaogeng_jin@agilent.com + * * (C) Copyright 2001 * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net * @@ -31,20 +34,22 @@ #include #include -#define PHYS_FLASH_SECT_SIZE 0x00020000 /* 256 KB sectors (x2) */ -flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ +#define DEBUG + +#define PHYS_FLASH_SECT_SIZE 0x00040000 /* 256 KB sectors (x2) */ +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ /* Board support for 1 or 2 flash devices */ -#undef FLASH_PORT_WIDTH32 -#define FLASH_PORT_WIDTH16 +#define FLASH_PORT_WIDTH32 +#undef FLASH_PORT_WIDTH16 #ifdef FLASH_PORT_WIDTH16 -#define FLASH_PORT_WIDTH ushort -#define FLASH_PORT_WIDTHV vu_short +#define FLASH_PORT_WIDTH ushort +#define FLASH_PORT_WIDTHV vu_short #define SWAP(x) __swab16(x) #else -#define FLASH_PORT_WIDTH ulong -#define FLASH_PORT_WIDTHV vu_long +#define FLASH_PORT_WIDTH ulong +#define FLASH_PORT_WIDTHV vu_long #define SWAP(x) __swab32(x) #endif @@ -67,6 +72,12 @@ OrgDef OrgIntel_28F256L18T[] = { {255, 128 * 1024}, /* 255 * 128kBytes sectors */ }; +/* CP control register base address */ +#define CPCR_BASE 0xCB000000 +#define CPCR_EXTRABANK 0x8 +#define CPCR_FLASHSIZE 0x4 +#define CPCR_FLWREN 0x2 +#define CPCR_FLVPPEN 0x1 /*----------------------------------------------------------------------- * Functions @@ -83,29 +94,50 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt); /*----------------------------------------------------------------------- */ - unsigned long flash_init (void) { - int i; + int i, nbanks; ulong size = 0; - for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { - switch (i) { - case 0: - flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]); - flash_get_offsets (PHYS_FLASH_1, &flash_info[i]); - break; - default: - panic ("configured too many flash banks!\n"); - break; - } + vu_long *cpcr = (vu_long *)CPCR_BASE; + + /* Check if there is an extra bank of flash */ + if (cpcr[1] & CPCR_EXTRABANK) + nbanks = 2; + else + nbanks = 1; + + if (nbanks > CFG_MAX_FLASH_BANKS) + nbanks = CFG_MAX_FLASH_BANKS; + + /* Enable flash write */ + cpcr[1] |= 3; + + for (i = 0; i < nbanks; i++) { + flash_get_size ((FPW *)(CFG_FLASH_BASE + size), &flash_info[i]); + flash_get_offsets (CFG_FLASH_BASE + size, &flash_info[i]); size += flash_info[i].size; } - /* Protect monitor and environment sectors - */ +#if CFG_MONITOR_BASE >= CFG_FLASH_BASE + /* monitor protection */ + flash_protect (FLAG_PROTECT_SET, + CFG_MONITOR_BASE, + CFG_MONITOR_BASE + monitor_flash_len - 1, &flash_info[0]); +#endif + +#ifdef CFG_ENV_IS_IN_FLASH + /* ENV protection ON */ + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1, + &flash_info[0]); +#endif + + /* Protect SIB (0x24800000) and bootMonitor (0x24c00000) */ flash_protect (FLAG_PROTECT_SET, - CFG_FLASH_BASE, - CFG_FLASH_BASE + monitor_flash_len - 1, &flash_info[0]); + flash_info[0].start[62], + flash_info[0].start[63] + PHYS_FLASH_SECT_SIZE - 1, + &flash_info[0]); return size; } @@ -115,23 +147,15 @@ unsigned long flash_init (void) static void flash_get_offsets (ulong base, flash_info_t * info) { int i; - OrgDef *pOrgDef; - pOrgDef = OrgIntel_28F256L18T; if (info->flash_id == FLASH_UNKNOWN) { return; } if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { for (i = 0; i < info->sector_count; i++) { - if (i > 255) { - info->start[i] = base + (i * 0x8000); - info->protect[i] = 0; - } else { - info->start[i] = base + - (i * PHYS_FLASH_SECT_SIZE); - info->protect[i] = 0; - } + info->start[i] = base + (i * PHYS_FLASH_SECT_SIZE); + info->protect[i] = 0; } } } @@ -156,10 +180,20 @@ void flash_print_info (flash_info_t * info) break; } + /* Integrator CP board uses 28F640J3C or 28F128J3C parts, + * which have the same device id numbers as 28F640J3A or + * 28F128J3A + */ switch (info->flash_id & FLASH_TYPEMASK) { case FLASH_28F256L18T: printf ("FLASH 28F256L18T\n"); break; + case FLASH_28F640J3A: + printf ("FLASH 28F640J3C\n"); + break; + case FLASH_28F128J3A: + printf ("FLASH 28F128J3C\n"); + break; default: printf ("Unknown Chip Type\n"); break; @@ -185,6 +219,17 @@ void flash_print_info (flash_info_t * info) static ulong flash_get_size (FPW * addr, flash_info_t * info) { volatile FPW value; + vu_long *cpcr = (vu_long *)CPCR_BASE; + int nsects; + + /* Check the flash size */ + if (cpcr[1] & CPCR_FLASHSIZE) + nsects = 128; + else + nsects = 64; + + if (nsects > CFG_MAX_FLASH_SECT) + nsects = CFG_MAX_FLASH_SECT; /* Write auto select command: read Manufacturer ID */ addr[0x5555] = (FPW) 0x00AA00AA; @@ -204,19 +249,31 @@ static ulong flash_get_size (FPW * addr, flash_info_t * info) info->flash_id = FLASH_UNKNOWN; info->sector_count = 0; info->size = 0; - addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ - return (0); /* no or unknown flash */ + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ + return (0); /* no or unknown flash */ } mb (); - value = addr[1]; /* device ID */ + value = addr[1]; /* device ID */ switch (value) { case (FPW) (INTEL_ID_28F256L18T): info->flash_id += FLASH_28F256L18T; info->sector_count = 259; info->size = 0x02000000; - break; /* => 32 MB */ + break; /* => 32 MB */ + + case (FPW) (INTEL_ID_28F640J3A): + info->flash_id += FLASH_28F640J3A; + info->sector_count = nsects; + info->size = nsects * PHYS_FLASH_SECT_SIZE; + break; + + case (FPW) (INTEL_ID_28F128J3A): + info->flash_id += FLASH_28F128J3A; + info->sector_count = nsects; + info->size = nsects * PHYS_FLASH_SECT_SIZE; + break; default: info->flash_id = FLASH_UNKNOWN; @@ -241,23 +298,32 @@ static ulong flash_get_size (FPW * addr, flash_info_t * info) */ void flash_unprotect_sectors (FPWV * addr) { -#define PD_FINTEL_WSMS_READY_MASK 0x0080 + FPW status; *addr = (FPW) 0x00500050; /* clear status register */ /* this sends the clear lock bit command */ *addr = (FPW) 0x00600060; *addr = (FPW) 0x00D000D0; + + reset_timer_masked(); + while (((status = *addr) & (FPW)0x00800080) != 0x00800080) { + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) { + printf("Timeout"); + break; + } + } + + *addr = (FPW) 0x00FF00FF; } /*----------------------------------------------------------------------- */ - int flash_erase (flash_info_t * info, int s_first, int s_last) { int flag, prot, sect; - ulong type, start, last; + ulong type; int rcode = 0; if ((s_first < 0) || (s_first > s_last)) { @@ -290,13 +356,6 @@ int flash_erase (flash_info_t * info, int s_first, int s_last) printf ("\n"); } - - start = get_timer (0); - last = start; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts (); - /* Start erase on unprotected sectors */ for (sect = s_first; sect <= s_last; sect++) { if (info->protect[sect] == 0) { /* not protected */ @@ -305,36 +364,53 @@ int flash_erase (flash_info_t * info, int s_first, int s_last) printf ("Erasing sector %2d ... ", sect); - flash_unprotect_sectors (addr); + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + /* flash_unprotect_sectors (addr); */ /* arm simple, non interrupt dependent timer */ reset_timer_masked (); - *addr = (FPW) 0x00500050;/* clear status register */ - *addr = (FPW) 0x00200020;/* erase setup */ - *addr = (FPW) 0x00D000D0;/* erase confirm */ - - while (((status = - *addr) & (FPW) 0x00800080) != - (FPW) 0x00800080) { - if (get_timer_masked () > - CFG_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - /* suspend erase */ - *addr = (FPW) 0x00B000B0; - /* reset to read mode */ - *addr = (FPW) 0x00FF00FF; - rcode = 1; - break; + *addr = (FPW) 0x00500050; /* clear status register */ + *addr = (FPW) 0x00200020; /* erase setup */ + *addr = (FPW) 0x00D000D0; /* erase confirm */ + mb(); + + udelay(1000); /* Let's wait 1 ms */ + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { + if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) { + *addr = (FPW)0x00700070; + status = *addr; + if ((status & (FPW) 0x00400040) == (FPW) 0x00400040) { + /* erase suspended? Resume it */ + reset_timer_masked(); + *addr = (FPW) 0x00D000D0; + } else { +#ifdef DEBUG + printf ("Timeout,0x%08lx\n", status); +#else + printf("Timeout\n"); +#endif + + *addr = (FPW) 0x00500050; + *addr = (FPW) 0x00FF00FF; /* reset to read mode */ + rcode = 1; + break; + } } } - /* clear status register cmd. */ - *addr = (FPW) 0x00500050; - *addr = (FPW) 0x00FF00FF;/* resest to read mode */ + *addr = (FPW) 0x00FF00FF; /* resest to read mode */ printf (" done\n"); } } + return rcode; } @@ -345,7 +421,6 @@ int flash_erase (flash_info_t * info, int s_first, int s_last) * 2 - Flash not erased * 4 - Flash not identified */ - int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) { ulong cp, wp; @@ -440,26 +515,42 @@ static int write_data (flash_info_t * info, ulong dest, FPW data) /* Check if Flash is (sufficiently) erased */ if ((*addr & data) != data) { - printf ("not erased at %08lx (%x)\n", (ulong) addr, *addr); + printf ("not erased at %08lx (%lx)\n", (ulong) addr, *addr); return (2); } - flash_unprotect_sectors (addr); + /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts (); + + /* flash_unprotect_sectors (addr); */ + *addr = (FPW) 0x00400040; /* write setup */ *addr = data; + mb(); + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + /* arm simple, non interrupt dependent timer */ reset_timer_masked (); /* wait while polling the status register */ while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) { - *addr = (FPW) 0x00FF00FF; /* restore read mode */ +#ifdef DEBUG + *addr = (FPW) 0x00700070; + status = *addr; + printf("## status=0x%08lx, addr=0x%p\n", status, addr); +#endif + *addr = (FPW) 0x00500050; /* clear status register cmd */ + *addr = (FPW) 0x00FF00FF; /* restore read mode */ return (1); } } - *addr = (FPW) 0x00FF00FF; /* restore read mode */ + + *addr = (FPW) 0x00FF00FF; /* restore read mode */ return (0); }