ppc4xx: HCU4/5. remove obsolete hcu_flash.c
authorNiklaus Giger <niklaus.giger@netstal.com>
Mon, 25 Feb 2008 17:37:02 +0000 (18:37 +0100)
committerStefan Roese <sr@denx.de>
Sat, 15 Mar 2008 06:26:12 +0000 (07:26 +0100)
Signed-off-by: Niklaus Giger <niklaus.giger@netstal.com>
board/netstal/common/hcu_flash.c [deleted file]

diff --git a/board/netstal/common/hcu_flash.c b/board/netstal/common/hcu_flash.c
deleted file mode 100644 (file)
index d0322f2..0000000
+++ /dev/null
@@ -1,514 +0,0 @@
-/*
- * (C) Copyright 2000-2004
- * 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
- */
-
-#include <common.h>
-#include <ppc4xx.h>
-#include <asm/processor.h>
-
-#if CFG_MAX_FLASH_BANKS != 1
-#error "CFG_MAX_FLASH_BANKS must be 1"
-#endif
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS];  /* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size (vu_long * addr, flash_info_t * info);
-static int write_word (flash_info_t * info, ulong dest, ulong data);
-static void flash_get_offsets (ulong base, flash_info_t * info);
-
-#define ADDR0          0x5555
-#define ADDR1          0x2aaa
-#define FLASH_WORD_SIZE unsigned char
-
-/*-----------------------------------------------------------------------*/
-
-unsigned long flash_init (void)
-{
-       unsigned long size_b0;
-
-       /* Init: no FLASHes known */
-       flash_info[0].flash_id = FLASH_UNKNOWN;
-
-       /* Static FLASH Bank configuration here - FIXME XXX */
-
-       size_b0 = flash_get_size ((vu_long *) FLASH_BASE0_PRELIM,
-                                 &flash_info[0]);
-
-       if (flash_info[0].flash_id == FLASH_UNKNOWN) {
-               printf ("## Unknown FLASH on Bank 0- Size=0x%08lx=%ld MB\n",
-                       size_b0, size_b0 << 20);
-       }
-
-       /* Only one bank */
-       /* Setup offsets */
-       flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]);
-
-       /* Monitor protection ON by default */
-       (void) flash_protect (FLAG_PROTECT_SET,
-                             FLASH_BASE0_PRELIM,
-                             FLASH_BASE0_PRELIM + monitor_flash_len - 1,
-                             &flash_info[0]);
-       flash_info[0].size = size_b0;
-
-       return size_b0;
-}
-
-
-/*-----------------------------------------------------------------------*/
-/*
- * This implementation assumes that the flash chips are uniform sector
- * devices. This is true for all likely flash devices on a HCUx.
- */
-static void flash_get_offsets (ulong base, flash_info_t * info)
-{
-       unsigned idx;
-       unsigned long sector_size = info->size / info->sector_count;
-
-       for (idx = 0; idx < info->sector_count; idx += 1) {
-               info->start[idx] = base + (idx * sector_size);
-       }
-}
-
-/*-----------------------------------------------------------------------*/
-void flash_print_info (flash_info_t * info)
-{
-       int i;
-       int k;
-       int size;
-       int erased;
-       volatile unsigned long *flash;
-
-       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_FUJ:
-               printf ("FUJITSU ");
-               break;
-       case FLASH_MAN_SST:
-               printf ("SST ");
-               break;
-       case FLASH_MAN_STM:
-               printf ("ST Micro ");
-               break;
-       default:
-               printf ("Unknown Vendor ");
-               break;
-       }
-
-         /* (Reduced table of only parts expected in HCUx boards.) */
-       switch (info->flash_id) {
-       case FLASH_MAN_AMD | FLASH_AM040:
-               printf ("AM29F040 (512 Kbit, uniform sector size)\n");
-               break;
-       case FLASH_MAN_STM | FLASH_AM040:
-               printf ("MM29W040W (512 Kbit, uniform sector size)\n");
-               break;
-       default:
-               printf ("Unknown Chip Type\n");
-               break;
-       }
-
-       printf ("  Size: %ld KB in %d Sectors\n",
-               info->size >> 10, info->sector_count);
-
-       printf ("  Sector Start Addresses:");
-       for (i = 0; i < info->sector_count; ++i) {
-               /*
-                * Check if whole sector is erased
-                */
-               if (i != (info->sector_count - 1))
-                       size = info->start[i + 1] - info->start[i];
-               else
-                       size = info->start[0] + info->size - info->start[i];
-               erased = 1;
-               flash = (volatile unsigned long *) info->start[i];
-               size = size >> 2;       /* divide by 4 for longword access */
-               for (k = 0; k < size; k++) {
-                       if (*flash++ != 0xffffffff) {
-                               erased = 0;
-                               break;
-                       }
-               }
-
-               if ((i % 5) == 0)
-                       printf ("\n   ");
-               printf (" %08lX%s%s",
-                       info->start[i],
-                       erased ? " E" : "  ", info->protect[i] ? "RO " : "   "
-               );
-       }
-       printf ("\n");
-       return;
-}
-
-/*-----------------------------------------------------------------------*/
-
-/*
- * The following code cannot be run from FLASH!
- */
-static ulong flash_get_size (vu_long * addr, flash_info_t * info)
-{
-       short i;
-       FLASH_WORD_SIZE value;
-       ulong base = (ulong) addr;
-       volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *) addr;
-
-       /* Write auto select command: read Manufacturer ID */
-       asm("isync");
-       addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
-       asm("isync");
-       addr2[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
-       asm("isync");
-       addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00900090;
-       asm("isync");
-
-       value = addr2[0];
-       asm("isync");
-
-       switch (value) {
-       case (FLASH_WORD_SIZE) AMD_MANUFACT:
-               info->flash_id = FLASH_MAN_AMD;
-               break;
-       case (FLASH_WORD_SIZE) FUJ_MANUFACT:
-               info->flash_id = FLASH_MAN_FUJ;
-               break;
-       case (FLASH_WORD_SIZE) SST_MANUFACT:
-               info->flash_id = FLASH_MAN_SST;
-               break;
-       case (FLASH_WORD_SIZE)STM_MANUFACT:
-               info->flash_id = FLASH_MAN_STM;
-               break;
-       default:
-               info->flash_id = FLASH_UNKNOWN;
-               info->sector_count = 0;
-               info->size = 0;
-               printf("Unknown flash manufacturer code: 0x%x at %p\n",
-                      value, addr);
-               addr2[ADDR0] = (FLASH_WORD_SIZE) 0;
-               return (0);     /* no or unknown flash  */
-       }
-
-       value = addr2[1];       /* device ID            */
-
-       switch (value) {
-       case (FLASH_WORD_SIZE) AMD_ID_F040B:
-               info->flash_id += FLASH_AM040;
-               info->sector_count = 8;
-               info->size = 0x0080000; /* => 512 ko */
-               break;
-       case (FLASH_WORD_SIZE) AMD_ID_LV040B:
-               info->flash_id += FLASH_AM040;
-               info->sector_count = 8;
-               info->size = 0x0080000; /* => 512 ko */
-               break;
-       case (FLASH_WORD_SIZE)STM_ID_M29W040B: /* most likele HCU5 chip */
-               info->flash_id += FLASH_AM040;
-               info->sector_count = 8;
-               info->size = 0x0080000; /* => 512 ko */
-               break;
-       default:
-               info->flash_id = FLASH_UNKNOWN;
-               return (0);     /* => no or unknown flash */
-
-       }
-
-         /* Calculate the sector offsets (Use HCUx Optimized code). */
-       flash_get_offsets(base, info);
-
-       /* 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
-                */
-               addr2 = (volatile FLASH_WORD_SIZE *) (info->start[i]);
-               if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
-                       info->protect[i] = 0;
-               else
-                       info->protect[i] = addr2[2] & 1;
-       }
-
-       /*
-        * Prevent writes to uninitialized FLASH.
-        */
-       if (info->flash_id != FLASH_UNKNOWN) {
-               addr2 = (FLASH_WORD_SIZE *) info->start[0];
-               *addr2 = (FLASH_WORD_SIZE) 0x00F000F0;  /* reset bank */
-       }
-
-       return (info->size);
-}
-
-int wait_for_DQ7 (flash_info_t * info, int sect)
-{
-       ulong start, now, last;
-       volatile FLASH_WORD_SIZE *addr =
-               (FLASH_WORD_SIZE *) (info->start[sect]);
-
-       start = get_timer (0);
-       last = start;
-       while ((addr[0] & (FLASH_WORD_SIZE) 0x00800080) !=
-              (FLASH_WORD_SIZE) 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;
-               }
-       }
-       return 0;
-}
-
-/*-----------------------------------------------------------------------*/
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
-       volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *) (info->start[0]);
-       volatile FLASH_WORD_SIZE *addr2;
-       int flag, prot, sect, l_sect;
-       int i;
-
-       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) {
-               printf ("Can't erase unknown flash type - aborted\n");
-               return 1;
-       }
-
-       prot = 0;
-       for (sect = s_first; sect <= s_last; ++sect) {
-               if (info->protect[sect]) {
-                       prot++;
-               }
-       }
-
-       if (prot) {
-               printf ("- Warning: %d protected sectors not erased!\n",
-                       prot);
-       } else {
-               printf ("\n");
-       }
-
-       l_sect = -1;
-
-       /* 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 */
-                       addr2 = (FLASH_WORD_SIZE *) (info->start[sect]);
-                       printf ("Erasing sector %p\n", addr2);  /* CLH */
-
-                       if ((info->flash_id & FLASH_VENDMASK) ==
-                           FLASH_MAN_SST) {
-                               addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
-                               addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
-                               addr[ADDR0] = (FLASH_WORD_SIZE) 0x00800080;
-                               addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
-                               addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
-                               /* block erase */
-                               addr2[0] = (FLASH_WORD_SIZE) 0x00500050;
-                               for (i = 0; i < 50; i++) udelay (1000);
-                       } else {
-                               addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
-                               addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
-                               addr[ADDR0] = (FLASH_WORD_SIZE) 0x00800080;
-                               addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
-                               addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
-                               /* sector erase */
-                               addr2[0] = (FLASH_WORD_SIZE) 0x00300030;
-                       }
-                       l_sect = sect;
-                       /*
-                        * Wait for each sector to complete, it's more
-                        * reliable.  According to AMD Spec, you must
-                        * issue all erase commands within a specified
-                        * timeout.  This has been seen to fail, especially
-                        * if printf()s are included (for debug)!!
-                        */
-                       wait_for_DQ7 (info, 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;
-       wait_for_DQ7 (info, l_sect);
-
-DONE:
-       /* reset to read mode */
-       addr = (FLASH_WORD_SIZE *) info->start[0];
-       addr[0] = (FLASH_WORD_SIZE) 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;
-
-       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)
-{
-       volatile FLASH_WORD_SIZE *addr2 =
-               (FLASH_WORD_SIZE *) (info->start[0]);
-       volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *) dest;
-       volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *) & data;
-       ulong start;
-       int i;
-
-       /* Check if Flash is (sufficiently) erased */
-       if ((*((volatile FLASH_WORD_SIZE *) dest) &
-           (FLASH_WORD_SIZE) data) != (FLASH_WORD_SIZE) data) {
-               return (2);
-       }
-
-       for (i = 0; i < 4 / sizeof (FLASH_WORD_SIZE); i++) {
-               int flag;
-
-               /* Disable interrupts which might cause a timeout here */
-               flag = disable_interrupts ();
-
-               addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
-               addr2[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
-               addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00A000A0;
-
-               dest2[i] = data2[i];
-
-               /* re-enable interrupts if necessary */
-               if (flag)
-                       enable_interrupts ();
-
-               /* data polling for D7 */
-               start = get_timer (0);
-               while ((dest2[i] & (FLASH_WORD_SIZE) 0x00800080) !=
-                      (data2[i] & (FLASH_WORD_SIZE) 0x00800080)) {
-
-                       if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
-                               return (1);
-                       }
-               }
-       }
-
-       return (0);
-}