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-rw-r--r--board/adderII/flash.c501
1 files changed, 0 insertions, 501 deletions
diff --git a/board/adderII/flash.c b/board/adderII/flash.c
deleted file mode 100644
index 77ab4f1370..0000000000
--- a/board/adderII/flash.c
+++ /dev/null
@@ -1,501 +0,0 @@
-/*
- * (C) Copyright 2000-2003
- * 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
- */
-/******************************************************************************
-** Notes: AM29LV320DB - 90EI ( 32 Mbit device )
-** Sectors - Eight 8 Kb sector
-** - Sixty three 64 Kb sector
-** Bottom boot sector
-******************************************************************************/
-#include <common.h>
-#include <mpc8xx.h>
-
-
-/******************************************************************************
-** Defines
-******************************************************************************/
-#ifdef CONFIG_ADDERII
-
-#define ADDR0 0x0555
-#define ADDR1 0x02AA
-#define FLASH_WORD_SIZE unsigned short
-
-#endif
-
-#if defined( CFG_ENV_IS_IN_FLASH )
-# ifndef CFG_ENV_ADDR
-# define CFG_ENV_ADDR ( CFG_FLASH_BASE + CFG_ENV_OFFSET )
-# endif
-# ifndef CFG_ENV_SIZE
-# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
-# endif
-# ifndef CFG_ENV_SECT_SIZE
-# define CFG_ENV_SECT_SIZE CFG_ENV_SIZE
-# endif
-#endif
-
-/******************************************************************************
-** Global Parameters
-******************************************************************************/
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
-
-/******************************************************************************
-** Function Prototypes
-******************************************************************************/
-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 );
-
-int wait_for_DQ7( flash_info_t *info, int sect );
-
-/******************************************************************************
-** Function : flash_init
-** Param : void
-** Notes : Initializes the Flash Chip
-******************************************************************************/
-ulong flash_init (void)
-{
- ulong size_b0 = -1;
- int i;
- volatile immap_t *immap = (immap_t *) CFG_IMMR;
- volatile memctl8xx_t *memctl = &immap->im_memctl;
-
- /* Set Flash to unknown */
- for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- /* Get the Flash Bank Size */
-
- size_b0 = flash_get_size ((vu_long *) (CFG_FLASH_BASE),
- &flash_info[0]);
-
- if (flash_info[0].flash_id == FLASH_UNKNOWN) {
- printf ("## UNKNOWN Flash on Bank 0 - Size = 0x%08lx = %ldMB\n",
- size_b0, size_b0 >> 20);
- }
-
- /* Remap Flash according to size detected */
- memctl->memc_or0 = 0xFF800774;
- memctl->memc_br0 = CFG_BR0_PRELIM;
-
- /* Setup Flash Sector Offsets */
-
- flash_get_offsets (CFG_FLASH_BASE, &flash_info[0]);
-
- /* Monitor Protection ON - default */
-
-#if ( CFG_MONITOR_BASE >= CFG_FLASH_BASE )
- flash_protect (FLAG_PROTECT_SET, CFG_MONITOR_BASE,
- (CFG_MONITOR_BASE + monitor_flash_len - 1),
- &flash_info[0]);
-#endif
-
- /* Protect Environment Variables */
-#ifdef CFG_ENV_IS_IN_FLASH
- flash_protect (FLAG_PROTECT_SET, CFG_ENV_ADDR,
- (CFG_ENV_ADDR + CFG_ENV_SIZE - 1), &flash_info[0]);
-#endif
-
- return size_b0;
-}
-
-/******************************************************************************
-** Function : flash_get_offsets
-** Param : ulong base, flash_into_t *info
-** Notes :
-******************************************************************************/
-static void flash_get_offsets (ulong base, flash_info_t * info)
-{
- return;
-}
-
-
-/******************************************************************************
-** Function : flash_print_info
-** Param : flash_info_t
-** Notes :
-******************************************************************************/
-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_FUJ:
- printf ("FUJITSU ");
- break;
- case FLASH_MAN_BM:
- printf ("BRIGHT MICRO ");
- break;
- default:
- printf ("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AM320B:
- printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM320T:
- printf ("AM29LV320T (32 Mbit, top boot sector)\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;
-}
-
-/******************************************************************************
-** Function : flash_get_size
-** Param : vu_long *addr, flash_info_t *info
-** Notes :
-******************************************************************************/
-static ulong flash_get_size (vu_long * addr, flash_info_t * info)
-{
- short i;
- FLASH_WORD_SIZE manu_id, dev_id;
- ulong base = (ulong) addr;
- volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *) addr;
-
- /* Write Auto Select Command and read Manufacturer's ID and Dev ID */
-
- addr2[ADDR0] = (FLASH_WORD_SIZE) 0xAAAAAAAA;
- addr2[ADDR1] = (FLASH_WORD_SIZE) 0x55555555;
- addr2[ADDR0] = (FLASH_WORD_SIZE) 0x90909090;
-
- manu_id = addr2[0];
-
- switch (manu_id) {
- case (FLASH_WORD_SIZE) AMD_MANUFACT:
- info->flash_id = FLASH_MAN_AMD;
- break;
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- break;
- }
-
- /* Read Device Id */
- dev_id = addr2[1];
-
- switch (dev_id) {
- case (FLASH_WORD_SIZE) AMD_ID_LV320B:
- info->flash_id += FLASH_AM320B;
- info->sector_count = 71; /* 8 - boot sec + 63 normal */
- info->size = 0x400000; /* 4MByte */
- break;
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- break;
- }
-
- /* Set up sector start Addresses */
-
- if (info->flash_id & FLASH_BTYPE) {
- /* set sector offsets for bottom boot block
- ** Eight 8 Kb Boot sectors
- ** Sixty Three 64Kb sectors
- */
- for (i = 0; i < 8; i++) {
- info->start[i] = base + (i * 0x00002000);
- }
- for (i = 8; i < info->sector_count; i++) {
- info->start[i] = base + (i * 0x00010000) - 0x00070000;
- }
- }
-
- /* Reset To read mode */
-
- if (info->flash_id != FLASH_UNKNOWN) {
- addr = (ulong *) info->start[0];
- *addr = 0xF0F0F0F0;
- }
- return (info->size);
-}
-
-/*******************************************************************************
-** Function : flash_erase
-** Param : flash_info_t *info, int s_first, int s_last
-** Notes :
-******************************************************************************/
-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 will not be 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]);
-
- 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;
- addr2[0] = (FLASH_WORD_SIZE) 0x00500050; /* block erase */
- for (i = 0; i < 50; i++)
- udelay (1000); /* wait 1 ms */
- } 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;
- addr2[0] = (FLASH_WORD_SIZE) 0x00300030; /* sector erase */
- }
- 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);
-
- /* reset to read mode */
- addr = (FLASH_WORD_SIZE *) info->start[0];
- addr[0] = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
-
- printf (" done\n");
- return 0;
-}
-
-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) {
- putc ('.');
- last = now;
- }
- }
- return 0;
-}
-
-
-/******************************************************************************
-** Function : write_buff
-** Param : flash_info_t *info, uchar *src, ulong addr, ulong cnt
-** Notes :
-******************************************************************************/
-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 */
- 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 (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));
-}
-
-
-/******************************************************************************
-** Function : write_word
-** Param : flash_info_t *info, ulong dest, ulong data
-** Notes :
-******************************************************************************/
-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);
-}
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