Remove obsolete flash driver board/tqm5200/flash.c
authorWolfgang Denk <wd@fifi.denx.de>
Fri, 16 Jun 2006 14:50:42 +0000 (16:50 +0200)
committerWolfgang Denk <wd@fifi.denx.de>
Fri, 16 Jun 2006 14:50:42 +0000 (16:50 +0200)
Patch by Martin Krause, 11 Jan 2006

CHANGELOG
board/tqm5200/Makefile
board/tqm5200/flash.c [deleted file]

index b30c0d12cef09157cc056505b9b187ef25f851d2..cfa774175b0b7d803484325809d678c62b663502 100644 (file)
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* Remove obsolete flash driver board/tqm5200/flash.c
+  Patch by Martin Krause, 11 Jan 2006
+
 * Update configuration for CMC-PU2 board
   Patch by Martin Krause, 17 Nov 2005
 
index c23433256638ef2de699315f323d15bf348363d6..ab0ff1a3419fcef2ec9f9b361f24035ca283c574 100644 (file)
@@ -25,7 +25,6 @@ include $(TOPDIR)/config.mk
 
 LIB    = lib$(BOARD).a
 
-#OBJS  := $(BOARD).o flash.o
 OBJS   := $(BOARD).o cmd_stk52xx.o
 
 $(LIB):        $(OBJS) $(SOBJS)
diff --git a/board/tqm5200/flash.c b/board/tqm5200/flash.c
deleted file mode 100644 (file)
index af4d78a..0000000
+++ /dev/null
@@ -1,497 +0,0 @@
-/*
- * (C) Copyright 2003-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2004
- * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.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
- */
-
-#include <common.h>
-
-flash_info_t   flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*
- * CPU to flash interface is 32-bit, so make declaration accordingly
- */
-typedef unsigned long FLASH_PORT_WIDTH;
-typedef volatile unsigned long FLASH_PORT_WIDTHV;
-
-#define FPW    FLASH_PORT_WIDTH
-#define FPWV   FLASH_PORT_WIDTHV
-
-#define FLASH_CYCLE1   0x0555
-#define FLASH_CYCLE2   0x02aa
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size(FPWV *addr, flash_info_t *info);
-static void flash_reset(flash_info_t *info);
-static int write_word_amd(flash_info_t *info, FPWV *dest, FPW data);
-static flash_info_t *flash_get_info(ulong base);
-
-/*-----------------------------------------------------------------------
- * flash_init()
- *
- * sets up flash_info and returns size of FLASH (bytes)
- */
-unsigned long flash_init (void)
-{
-       unsigned long size = 0;
-       extern void flash_preinit(void);
-       ulong flashbase = CFG_FLASH_BASE;
-
-       flash_preinit();
-
-       /* Init: no FLASHes known */
-       memset(&flash_info[0], 0, sizeof(flash_info_t));
-
-       flash_info[0].size =
-               flash_get_size((FPW *)flashbase, &flash_info[0]);
-
-       size = flash_info[0].size;
-
-#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
-       /* monitor protection ON by default */
-       flash_protect(FLAG_PROTECT_SET,
-                     CFG_MONITOR_BASE,
-                     CFG_MONITOR_BASE+monitor_flash_len-1,
-                     flash_get_info(CFG_MONITOR_BASE));
-#endif
-
-#ifdef CFG_ENV_IS_IN_FLASH
-       /* ENV protection ON by default */
-       flash_protect(FLAG_PROTECT_SET,
-                     CFG_ENV_ADDR,
-                     CFG_ENV_ADDR+CFG_ENV_SIZE-1,
-                     flash_get_info(CFG_ENV_ADDR));
-#endif
-
-       return size ? size : 1;
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_reset(flash_info_t *info)
-{
-       FPWV *base = (FPWV *)(info->start[0]);
-
-       /* Put FLASH back in read mode */
-       if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
-               *base = (FPW)0x00FF00FF;        /* Intel Read Mode */
-       else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD)
-               *base = (FPW)0x00F000F0;        /* AMD Read Mode */
-}
-
-/*-----------------------------------------------------------------------
- */
-
-static flash_info_t *flash_get_info(ulong base)
-{
-       int i;
-       flash_info_t * info;
-
-       for (i = 0; i < CFG_MAX_FLASH_BANKS; i ++) {
-               info = & flash_info[i];
-               if (info->size && info->start[0] <= base &&
-                   base <= info->start[0] + info->size - 1)
-                       break;
-       }
-
-       return i == CFG_MAX_FLASH_BANKS ? 0 : 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_AMD:     printf ("AMD ");                break;
-       case FLASH_MAN_BM:      printf ("BRIGHT MICRO ");       break;
-       case FLASH_MAN_FUJ:     printf ("FUJITSU ");            break;
-       case FLASH_MAN_SST:     printf ("SST ");                break;
-       case FLASH_MAN_STM:     printf ("STM ");                break;
-       case FLASH_MAN_INTEL:   printf ("INTEL ");              break;
-       default:                printf ("Unknown Vendor ");     break;
-       }
-
-       switch (info->flash_id & FLASH_TYPEMASK) {
-       case FLASH_AMLV128U:
-               printf ("AM29LV128ML (128Mbit, uniform sector size)\n");
-               break;
-       case FLASH_AM160B:
-               printf ("AM29LV160B (16 Mbit, bottom boot sect)\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!
- */
-
-ulong flash_get_size (FPWV *addr, flash_info_t *info)
-{
-       int i;
-       ulong base = (ulong)addr;
-
-       /* Write auto select command: read Manufacturer ID */
-       /* Write auto select command sequence and test FLASH answer */
-       addr[FLASH_CYCLE1] = (FPW)0x00AA00AA;   /* for AMD, Intel ignores this */
-       addr[FLASH_CYCLE2] = (FPW)0x00550055;   /* for AMD, Intel ignores this */
-       addr[FLASH_CYCLE1] = (FPW)0x00900090;   /* selects Intel or AMD */
-
-       /* The manufacturer codes are only 1 byte, so just use 1 byte.
-        * This works for any bus width and any FLASH device width.
-        */
-       udelay(100);
-       switch (addr[0] & 0xff) {
-
-       case (uchar)AMD_MANUFACT:
-               debug ("Manufacturer: AMD (Spansion)\n");
-               info->flash_id = FLASH_MAN_AMD;
-               break;
-
-       case (uchar)INTEL_MANUFACT:
-               debug ("Manufacturer: Intel (not supported yet)\n");
-               info->flash_id = FLASH_MAN_INTEL;
-               break;
-
-       default:
-               info->flash_id = FLASH_UNKNOWN;
-               info->sector_count = 0;
-               info->size = 0;
-               break;
-       }
-
-       /* Check 16 bits or 32 bits of ID so work on 32 or 16 bit bus. */
-       if (info->flash_id != FLASH_UNKNOWN) switch ((FPW)addr[1]) {
-
-       case (FPW)AMD_ID_LV160B:
-               debug ("Chip: AM29LV160MB\n");
-               info->flash_id += FLASH_AM160B;
-               info->sector_count = 35;
-               info->size = 0x00400000;
-               /*
-                * The first 4 sectors are 16 kB, 8 kB, 8 kB and 32 kB, all
-                * the other ones are 64 kB
-                */
-               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 * 2 * (64 << 10)) - 0x00060000;
-               break;          /* => 4 MB */
-
-       case AMD_ID_MIRROR:
-               debug ("Mirror Bit flash: addr[14] = %08lX  addr[15] = %08lX\n",
-                       addr[14], addr[15]);
-
-               switch(addr[14]) {
-               case AMD_ID_LV128U_2:
-                       if (addr[15] != AMD_ID_LV128U_3) {
-                               debug ("Chip: AM29LVxxxM -> unknown\n");
-                               info->flash_id = FLASH_UNKNOWN;
-                               info->sector_count = 0;
-                               info->size = 0;
-                       } else {
-                               debug ("Chip: AM29LV128M\n");
-                               info->flash_id += FLASH_AMLV128U;
-                               info->sector_count = 256;
-                               info->size = 0x02000000;
-                               for (i = 0; i < info->sector_count; i++) {
-                                       info->start[i] = base;
-                                       base += 0x20000;
-                               }
-                       }
-                       break;  /* => 32 MB     */
-               default:
-                       debug ("Chip: *** unknown ***\n");
-                       info->flash_id = FLASH_UNKNOWN;
-                       info->sector_count = 0;
-                       info->size = 0;
-                       break;
-               }
-               break;
-
-       default:
-               info->flash_id = FLASH_UNKNOWN;
-               info->sector_count = 0;
-               info->size = 0;
-       }
-
-       /* Put FLASH back in read mode */
-       flash_reset(info);
-
-       return (info->size);
-}
-
-/*-----------------------------------------------------------------------
- */
-
-int    flash_erase (flash_info_t *info, int s_first, int s_last)
-{
-       vu_long *addr = (vu_long*)(info->start[0]);
-       int flag, prot, sect, l_sect;
-       ulong start, now, last;
-
-       debug ("flash_erase: first: %d last: %d\n", 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;
-       }
-
-       if ((info->flash_id == FLASH_UNKNOWN) ||
-           (info->flash_id > FLASH_AMD_COMP)) {
-               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++;
-               }
-       }
-
-       if (prot) {
-               printf ("- Warning: %d protected sectors will not be erased!\n",
-                       prot);
-       } else {
-               printf ("\n");
-       }
-
-       l_sect = -1;
-
-       /* Disable interrupts which might cause a timeout here */
-       flag = disable_interrupts();
-
-       addr[0x0555] = 0x00AA00AA;
-       addr[0x02AA] = 0x00550055;
-       addr[0x0555] = 0x00800080;
-       addr[0x0555] = 0x00AA00AA;
-       addr[0x02AA] = 0x00550055;
-
-       /* Start erase on unprotected sectors */
-       for (sect = s_first; sect<=s_last; sect++) {
-               if (info->protect[sect] == 0) { /* not protected */
-                       addr = (vu_long*)(info->start[sect]);
-                       addr[0] = 0x00300030;
-                       l_sect = sect;
-               }
-       }
-
-       /* re-enable interrupts if necessary */
-       if (flag)
-               enable_interrupts();
-
-       /* wait at least 80us - let's wait 1 ms */
-       udelay (1000);
-
-       /*
-        * We wait for the last triggered sector
-        */
-       if (l_sect < 0)
-               goto DONE;
-
-       start = get_timer (0);
-       last  = start;
-       addr = (vu_long*)(info->start[l_sect]);
-       while ((addr[0] & 0x00800080) != 0x00800080) {
-               if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
-                       printf ("Timeout\n");
-                       return 1;
-               }
-               /* show that we're waiting */
-               if ((now - last) > 1000) {      /* every second */
-                       putc ('.');
-                       last = now;
-               }
-       }
-
-DONE:
-       /* reset to read mode */
-       addr = (volatile unsigned long *)info->start[0];
-       addr[0] = 0x00F000F0;   /* reset bank */
-
-       printf (" done\n");
-       return 0;
-}
-
-/*-----------------------------------------------------------------------
- * 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;
-
-       /*
-        * Get lower word aligned address. Assumes 32 bit flash bus width.
-        */
-       wp = (addr & ~3);
-
-       /*
-        * 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_amd(info, (FPW *)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_amd(info, (FPW *)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_amd(info, (FPW *)wp, data));
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash for AMD FLASH
- * A word is 16 or 32 bits, whichever the bus width of the flash bank
- * (not an individual chip) is.
- *
- * returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_word_amd (flash_info_t *info, FPWV *dest, FPW data)
-{
-       ulong start;
-       int flag;
-       FPWV *base;             /* first address in flash bank  */
-
-       /* Check if Flash is (sufficiently) erased */
-       if ((*dest & data) != data) {
-               return (2);
-       }
-
-       base = (FPWV *)(info->start[0]);
-
-       /* Disable interrupts which might cause a timeout here */
-       flag = disable_interrupts();
-
-       base[FLASH_CYCLE1] = (FPW)0x00AA00AA;   /* unlock */
-       base[FLASH_CYCLE2] = (FPW)0x00550055;   /* unlock */
-       base[FLASH_CYCLE1] = (FPW)0x00A000A0;   /* selects program mode */
-
-       *dest = data;           /* start programming the data   */
-
-       /* re-enable interrupts if necessary */
-       if (flag)
-               enable_interrupts();
-
-       start = get_timer (0);
-
-       /* data polling for D7 */
-       while ((*dest & (FPW)0x00800080) != (data & (FPW)0x00800080)) {
-               if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
-                       *dest = (FPW)0x00F000F0;        /* reset bank */
-                       return (1);
-               }
-       }
-       return (0);
-}