diff options
| author | wdenk <wdenk> | 2003-03-14 20:47:52 +0000 | 
|---|---|---|
| committer | wdenk <wdenk> | 2003-03-14 20:47:52 +0000 | 
| commit | 06d01dbe000057e5df4af0f113242f0eba716340 (patch) | |
| tree | 9188617ad1907e44f41910b99af9bde7258338f9 /board/lubbock/flash.c | |
| parent | 09127c60964c47621937ada7b0ccbf0c26329376 (diff) | |
| download | olio-uboot-2014.01-06d01dbe000057e5df4af0f113242f0eba716340.tar.xz olio-uboot-2014.01-06d01dbe000057e5df4af0f113242f0eba716340.zip | |
* Avoid flicker on the TRAB's VFD by synchronizing the enable with
  the HSYNC/VSYNC. Requires new CPLD code (Version 101 for Rev. 100
  boards, version 153 for Rev. 200 boards).
* Patch by Vladimir Gurevich, 12 Mar 2003:
  Fix relocation problem of statically initialized string pointers
  in common/cmd_pci.c
* Patch by Kai-Uwe Blöm, 12 Mar 2003:
  Cleanup & bug fixes for JFFS2 code:
  - the memory mangement was broken. It caused havoc on malloc by
    writing beyond the block boundaries.
  - the length calculation for files was wrong, sometimes resulting
    in short file reads.
  - data copying now optionally takes fragment version numbers into
    account, to avoid copying from older data.
  See doc/README.JFFS2 for details.
Diffstat (limited to 'board/lubbock/flash.c')
| -rw-r--r-- | board/lubbock/flash.c | 331 | 
1 files changed, 165 insertions, 166 deletions
| diff --git a/board/lubbock/flash.c b/board/lubbock/flash.c index a93875083..dcf829b2c 100644 --- a/board/lubbock/flash.c +++ b/board/lubbock/flash.c @@ -28,7 +28,7 @@  #include <linux/byteorder/swab.h> -flash_info_t	flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips	*/ +flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips    */  /* Board support for 1 or 2 flash devices */  #define FLASH_PORT_WIDTH32 @@ -53,50 +53,47 @@ flash_info_t	flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips	*/   * Functions   */  static ulong flash_get_size (FPW *addr, flash_info_t *info); -static int   write_data (flash_info_t *info, ulong dest, FPW data); -static void  flash_get_offsets (ulong base, flash_info_t *info); -void inline  spin_wheel(void); +static int write_data (flash_info_t *info, ulong dest, FPW data); +static void flash_get_offsets (ulong base, flash_info_t *info); +void inline spin_wheel (void);  /*-----------------------------------------------------------------------   */  unsigned long flash_init (void)  { -   int i; -    ulong size = 0; +	int i; +	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; -           case 1: -            flash_get_size((FPW *)PHYS_FLASH_2, &flash_info[i]); -	         flash_get_offsets(PHYS_FLASH_2, &flash_info[i]); -                break; -           default: -	        panic("configured to many flash banks!\n"); -                break; -        } -	size += flash_info[i].size; -    } +	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; +		case 1: +			flash_get_size ((FPW *) PHYS_FLASH_2, &flash_info[i]); +			flash_get_offsets (PHYS_FLASH_2, &flash_info[i]); +			break; +		default: +			panic ("configured to many flash banks!\n"); +			break; +		} +		size += flash_info[i].size; +	} -    /* Protect monitor and environment sectors -     */ -    flash_protect(FLAG_PROTECT_SET, -		  CFG_FLASH_BASE, -		  CFG_FLASH_BASE + _armboot_end_data - _armboot_start, -		  &flash_info[0]); +	/* Protect monitor and environment sectors +	 */ +	flash_protect ( FLAG_PROTECT_SET, +			CFG_FLASH_BASE, +			CFG_FLASH_BASE + _armboot_end_data - _armboot_start, +			&flash_info[0] ); -    flash_protect(FLAG_PROTECT_SET, -		  CFG_ENV_ADDR, -		  CFG_ENV_ADDR + CFG_ENV_SIZE - 1, -		  &flash_info[0]); +	flash_protect ( FLAG_PROTECT_SET, +			CFG_ENV_ADDR, +			CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0] ); -    return size; +	return size;  }  /*----------------------------------------------------------------------- @@ -119,39 +116,45 @@ static void flash_get_offsets (ulong base, flash_info_t *info)  /*-----------------------------------------------------------------------   */ -void flash_print_info  (flash_info_t *info) +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; +	case FLASH_MAN_INTEL: +		printf ("INTEL "); +		break; +	default: +		printf ("Unknown Vendor "); +		break;  	}  	switch (info->flash_id & FLASH_TYPEMASK) { -   case FLASH_28F128J3A: -				printf ("28F128J3A\n"); break; -	default:		printf ("Unknown Chip Type\n"); break; -        } +	case FLASH_28F128J3A: +		printf ("28F128J3A\n"); +		break; +	default: +		printf ("Unknown Chip Type\n"); +		break; +	}  	printf ("  Size: %ld MB in %d Sectors\n", -	        info->size >> 20, info->sector_count); +			info->size >> 20, info->sector_count);  	printf ("  Sector Start Addresses:"); -	for (i=0; i<info->sector_count; ++i) { -	        if ((i % 5) == 0) -	        printf ("\n   "); +	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"); +			info->protect[i] ? " (RO)" : "     "); +	} +	printf ("\n");  	return;  } @@ -163,37 +166,37 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info)  	volatile FPW value;  	/* Write auto select command: read Manufacturer ID */ -	addr[0x5555] = (FPW)0x00AA00AA; -	addr[0x2AAA] = (FPW)0x00550055; -	addr[0x5555] = (FPW)0x00900090; +	addr[0x5555] = (FPW) 0x00AA00AA; +	addr[0x2AAA] = (FPW) 0x00550055; +	addr[0x5555] = (FPW) 0x00900090; -   mb(); +	mb ();  	value = addr[0]; -   switch (value) { +	switch (value) { -   case (FPW)INTEL_MANUFACT: -      info->flash_id = FLASH_MAN_INTEL; -      break; +	case (FPW) INTEL_MANUFACT: +		info->flash_id = FLASH_MAN_INTEL; +		break;  	default:  		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		*/ +	mb (); +	value = addr[1];			/* device ID        */ -   switch (value) { +	switch (value) { -   case (FPW)INTEL_ID_28F128J3A: -      info->flash_id += FLASH_28F128J3A; -      info->sector_count = 128; -      info->size = 0x02000000; -      break;            /* => 16 MB     */ +	case (FPW) INTEL_ID_28F128J3A: +		info->flash_id += FLASH_28F128J3A; +		info->sector_count = 128; +		info->size = 0x02000000; +		break;				/* => 16 MB     */  	default:  		info->flash_id = FLASH_UNKNOWN; @@ -204,9 +207,9 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info)  		printf ("** ERROR: sector count %d > max (%d) **\n",  			info->sector_count, CFG_MAX_FLASH_SECT);  		info->sector_count = CFG_MAX_FLASH_SECT; -    } +	} -	addr[0] = (FPW)0x00FF00FF;      /* restore read mode */ +	addr[0] = (FPW) 0x00FF00FF;		/* restore read mode */  	return (info->size);  } @@ -215,34 +218,34 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info)  /*-----------------------------------------------------------------------   */ -int	flash_erase (flash_info_t *info, int s_first, int s_last) +int flash_erase (flash_info_t *info, int s_first, int s_last)  { -    int flag, prot, sect; -	ulong type, start, now, last; +	int flag, prot, sect; +	ulong type, start, last;  	int rcode = 0; -    if ((s_first < 0) || (s_first > s_last)) { +	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; -    } +	}  	type = (info->flash_id & FLASH_VENDMASK);  	if ((type != FLASH_MAN_INTEL)) {  		printf ("Can't erase unknown flash type %08lx - aborted\n",  			info->flash_id);  		return 1; -    } +	} -    prot = 0; -    for (sect=s_first; sect<=s_last; ++sect) { -	if (info->protect[sect]) { -	    prot++; +	prot = 0; +	for (sect = s_first; sect <= s_last; ++sect) { +		if (info->protect[sect]) { +			prot++; +		}  	} -    }  	if (prot) {  		printf ("- Warning: %d protected sectors will not be erased!\n", @@ -252,42 +255,42 @@ int	flash_erase (flash_info_t *info, int s_first, int s_last)  	}  	start = get_timer (0); -	last  = start; +	last = start; -   /* Disable interrupts which might cause a timeout here */ -    flag = disable_interrupts(); +	/* Disable interrupts which might cause a timeout here */ +	flag = disable_interrupts (); -    /* Start erase on unprotected sectors */ -	for (sect = s_first; sect<=s_last; sect++) { +	/* Start erase on unprotected sectors */ +	for (sect = s_first; sect <= s_last; sect++) {  		if (info->protect[sect] == 0) {	/* not protected */ -			FPWV *addr = (FPWV *)(info->start[sect]); +			FPWV *addr = (FPWV *) (info->start[sect]);  			FPW status; -	printf("Erasing sector %2d ... ", sect); +			printf ("Erasing sector %2d ... ", sect); -	/* arm simple, non interrupt dependent timer */ -	reset_timer_masked(); +			/* 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 */ +			*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) { +			while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { +				if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {  					printf ("Timeout\n"); -					*addr = (FPW)0x00B000B0; /* suspend erase	  */ -					*addr = (FPW)0x00FF00FF; /* reset to read mode */ +					*addr = (FPW) 0x00B000B0;	/* suspend erase     */ +					*addr = (FPW) 0x00FF00FF;	/* reset to read mode */  					rcode = 1;  					break; -	} -    } +				} +			} -			*addr = 0x00500050; /* clear status register cmd.   */ -			*addr = 0x00FF00FF; /* resest to read mode          */ +			*addr = 0x00500050;	/* clear status register cmd.   */ +			*addr = 0x00FF00FF;	/* resest to read mode          */  			printf (" done\n"); -        } -        } +		} +	}  	return rcode;  } @@ -301,7 +304,7 @@ int	flash_erase (flash_info_t *info, int s_first, int s_last)  int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)  { -    ulong cp, wp; +	ulong cp, wp;  	FPW data;  	int count, i, l, rc, port_width; @@ -317,67 +320,66 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)  	port_width = 4;  #endif -    /* -     * 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<port_width && cnt>0; ++i) { +	/* +	 * 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 < port_width && cnt > 0; ++i) {  			data = (data << 8) | *src++; -	    --cnt; -	    ++cp; -	} -		for (; cnt==0 && i<port_width; ++i, ++cp) { -			data = (data << 8) | (*(uchar *)cp); -	} +			--cnt; +			++cp; +		} +		for (; cnt == 0 && i < port_width; ++i, ++cp) { +			data = (data << 8) | (*(uchar *) cp); +		} -		if ((rc = write_data(info, wp, SWAP(data))) != 0) { -	    return (rc); -	} +		if ((rc = write_data (info, wp, SWAP (data))) != 0) { +			return (rc); +		}  		wp += port_width; -    } +	} -    /* -     * handle word aligned part -     */ +	/* +	 * handle word aligned part +	 */  	count = 0;  	while (cnt >= port_width) {  		data = 0; -		for (i=0; i<port_width; ++i) { +		for (i = 0; i < port_width; ++i) {  			data = (data << 8) | *src++;  		} -		if ((rc = write_data(info, wp, SWAP(data))) != 0) { -	    return (rc); -	} -		wp  += port_width; +		if ((rc = write_data (info, wp, SWAP (data))) != 0) { +			return (rc); +		} +		wp += port_width;  		cnt -= port_width; -		if (count++ > 0x800) -		{ -         spin_wheel(); +		if (count++ > 0x800) { +			spin_wheel ();  			count = 0;  		} -    } +	} -    if (cnt == 0) { +	if (cnt == 0) {  		return (0); -    } +	} -    /* -     * handle unaligned tail bytes -     */ -    data = 0; -	for (i=0, cp=wp; i<port_width && cnt>0; ++i, ++cp) { +	/* +	 * handle unaligned tail bytes +	 */ +	data = 0; +	for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) {  		data = (data << 8) | *src++; -	--cnt; -    } -	for (; i<port_width; ++i, ++cp) { -		data = (data << 8) | (*(uchar *)cp); +		--cnt; +	} +	for (; i < port_width; ++i, ++cp) { +		data = (data << 8) | (*(uchar *) cp);  	} -	return (write_data(info, wp, SWAP(data))); +	return (write_data (info, wp, SWAP (data)));  }  /*----------------------------------------------------------------------- @@ -388,45 +390,42 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)   */  static int write_data (flash_info_t *info, ulong dest, FPW data)  { -	FPWV *addr = (FPWV *)dest; +	FPWV *addr = (FPWV *) dest;  	ulong status; -	ulong start;  	int flag;  	/* 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);  	}  	/* Disable interrupts which might cause a timeout here */ -	flag = disable_interrupts(); +	flag = disable_interrupts (); -	*addr = (FPW)0x00400040;		/* write setup */ +	*addr = (FPW) 0x00400040;	/* write setup */  	*addr = data;  	/* arm simple, non interrupt dependent timer */ -	reset_timer_masked(); +	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 */ +	while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { +		if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) { +			*addr = (FPW) 0x00FF00FF;	/* restore read mode */  			return (1);  		} -    } +	} -	*addr = (FPW)0x00FF00FF;	/* restore read mode */ +	*addr = (FPW) 0x00FF00FF;	/* restore read mode */  	return (0);  } -void inline -spin_wheel(void) +void inline spin_wheel (void)  { -   static int r=0,p=0; -   static char w[] = "\\/-"; +	static int p = 0; +	static char w[] = "\\/-"; -   printf("\010%c", w[p]); -   (++p == 3) ? (p = 0) : 0; +	printf ("\010%c", w[p]); +	(++p == 3) ? (p = 0) : 0;  } - |