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-rw-r--r--board/ep8260/flash.c395
1 files changed, 0 insertions, 395 deletions
diff --git a/board/ep8260/flash.c b/board/ep8260/flash.c
deleted file mode 100644
index 44f63ee..0000000
--- a/board/ep8260/flash.c
+++ /dev/null
@@ -1,395 +0,0 @@
-/*
- * (C) Copyright 2001, 2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2002
- * Frank Panno <fpanno@delphintech.com>, Delphin Technology AG
- *
- * Flash Routines for AMD device AM29DL323DB on the EP8260 board.
- *
- * This file is based on board/tqm8260/flash.c.
- *--------------------------------------------------------------------
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <mpc8xx.h>
-
-#define V_ULONG(a) (*(volatile unsigned long *)( a ))
-#define V_BYTE(a) (*(volatile unsigned char *)( a ))
-
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-
-/*-----------------------------------------------------------------------
- */
-void flash_reset(void)
-{
- if( flash_info[0].flash_id != FLASH_UNKNOWN ) {
- V_ULONG( flash_info[0].start[0] ) = 0x00F000F0;
- V_ULONG( flash_info[0].start[0] + 4 ) = 0x00F000F0;
- }
-}
-
-/*-----------------------------------------------------------------------
- */
-ulong flash_get_size( ulong baseaddr, flash_info_t *info )
-{
- short i;
- unsigned long flashtest_h, flashtest_l;
-
- /* Write auto select command sequence and test FLASH answer */
- V_ULONG(baseaddr + ((ulong)0x0555 << 3)) = 0x00AA00AA;
- V_ULONG(baseaddr + ((ulong)0x02AA << 3)) = 0x00550055;
- V_ULONG(baseaddr + ((ulong)0x0555 << 3)) = 0x00900090;
- V_ULONG(baseaddr + 4 + ((ulong)0x0555 << 3)) = 0x00AA00AA;
- V_ULONG(baseaddr + 4 + ((ulong)0x02AA << 3)) = 0x00550055;
- V_ULONG(baseaddr + 4 + ((ulong)0x0555 << 3)) = 0x00900090;
-
- flashtest_h = V_ULONG(baseaddr); /* manufacturer ID */
- flashtest_l = V_ULONG(baseaddr + 4);
-
- if ((int)flashtest_h == AMD_MANUFACT) {
- info->flash_id = FLASH_MAN_AMD;
- } else {
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
- flashtest_h = V_ULONG(baseaddr + 8); /* device ID */
- flashtest_l = V_ULONG(baseaddr + 12);
- if (flashtest_h != flashtest_l) {
- info->flash_id = FLASH_UNKNOWN;
- return(0);
- }
-
- switch((int)flashtest_h) {
- case AMD_ID_DL323B:
- info->flash_id += FLASH_AMDL323B;
- info->sector_count = 71;
- info->size = 0x01000000; /* 4 * 4 MB = 16 MB */
- break;
- case AMD_ID_LV640U: /* AMDLV640 and AMDLV641 have same ID */
- info->flash_id += FLASH_AMLV640U;
- info->sector_count = 128;
- info->size = 0x02000000; /* 4 * 8 MB = 32 MB */
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- return(0); /* no or unknown flash */
- }
-
- if(flashtest_h == AMD_ID_LV640U) {
- /* set up sector start adress table (uniform sector type) */
- for (i = 0; i < info->sector_count; i++)
- info->start[i] = baseaddr + (i * 0x00040000);
- } else {
- /* set up sector start adress table (bottom sector type) */
- for (i = 0; i < 8; i++) {
- info->start[i] = baseaddr + (i * 0x00008000);
- }
- for (i = 8; i < info->sector_count; i++) {
- info->start[i] = baseaddr + (i * 0x00040000) - 0x001C0000;
- }
- }
- /* check for protected sectors */
- for (i = 0; i < info->sector_count; i++) {
- /* read sector protection at sector address, (A7 .. A0) = 0x02 */
- if ((V_ULONG( info->start[i] + 16 ) & 0x00010001) ||
- (V_ULONG( info->start[i] + 20 ) & 0x00010001)) {
- info->protect[i] = 1; /* D0 = 1 if protected */
- } else {
- info->protect[i] = 0;
- }
- }
-
- flash_reset();
- return(info->size);
-}
-
-/*-----------------------------------------------------------------------
- */
-unsigned long flash_init (void)
-{
- unsigned long size_b0 = 0;
- int i;
-
- /* Init: no FLASHes known */
- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- /* Static FLASH Bank configuration here (only one bank) */
-
- size_b0 = flash_get_size(CONFIG_SYS_FLASH0_BASE, &flash_info[0]);
- if (flash_info[0].flash_id == FLASH_UNKNOWN || size_b0 == 0) {
- printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
- size_b0, size_b0>>20);
- }
-
- /*
- * protect monitor and environment sectors
- */
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH0_BASE
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[0]);
-#endif
-
-#if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CONFIG_ENV_ADDR)
-# ifndef CONFIG_ENV_SIZE
-# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
-# endif
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
- &flash_info[0]);
-#endif
-
- return (size_b0);
-}
-
-/*-----------------------------------------------------------------------
- */
-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 >> 16) & 0xff) {
- case FLASH_MAN_AMD: printf ("AMD "); break;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AMDL323B: printf ("29DL323B (32 M, bottom sector)\n");
- break;
- case FLASH_AMLV640U: printf ("29LV640U (64 M, uniform 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;
-}
-
-/*-----------------------------------------------------------------------
- */
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- int flag, prot, sect, l_sect;
- ulong start, now, 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;
- }
-
- 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();
-
- V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
- V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00800080;
- V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
- V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
- V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00800080;
- V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
- udelay (1000);
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- V_ULONG( info->start[sect] ) = 0x00300030;
- V_ULONG( info->start[sect] + 4 ) = 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;
- while ((V_ULONG( info->start[l_sect] ) & 0x00800080) != 0x00800080 ||
- (V_ULONG( info->start[l_sect] + 4 ) & 0x00800080) != 0x00800080)
- {
- if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- return 1;
- }
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- serial_putc ('.');
- last = now;
- }
- }
-
- DONE:
- /* reset to read mode */
- flash_reset ();
-
- printf (" done\n");
- return 0;
-}
-
-static int write_dword (flash_info_t *, ulong, unsigned char *);
-
-/*-----------------------------------------------------------------------
- * 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 dp;
- static unsigned char bb[8];
- int i, l, rc, cc = cnt;
-
- dp = (addr & ~7); /* get lower dword aligned address */
-
- /*
- * handle unaligned start bytes
- */
- if ((l = addr - dp) != 0) {
- for (i = 0; i < 8; i++)
- bb[i] = (i < l || (i-l) >= cc) ? V_BYTE(dp+i) : *src++;
- if ((rc = write_dword(info, dp, bb)) != 0)
- {
- return (rc);
- }
- dp += 8;
- cc -= 8 - l;
- }
-
- /*
- * handle word aligned part
- */
- while (cc >= 8) {
- if ((rc = write_dword(info, dp, src)) != 0) {
- return (rc);
- }
- dp += 8;
- src += 8;
- cc -= 8;
- }
-
- if (cc <= 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- for (i = 0; i < 8; i++) {
- bb[i] = (i < cc) ? *src++ : V_BYTE(dp+i);
- }
- return (write_dword(info, dp, bb));
-}
-
-/*-----------------------------------------------------------------------
- * Write a dword to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_dword (flash_info_t *info, ulong dest, unsigned char * pdata)
-{
- ulong start;
- ulong cl = 0, ch =0;
- int flag, i;
-
- for (ch=0, i=0; i < 4; i++)
- ch = (ch << 8) + *pdata++; /* high word */
- for (cl=0, i=0; i < 4; i++)
- cl = (cl << 8) + *pdata++; /* low word */
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_long *)dest) & ch) != ch
- ||(*((vu_long *)(dest + 4)) & cl) != cl)
- {
- return (2);
- }
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
- V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00A000A0;
- V_ULONG( dest ) = ch;
- V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
- V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00A000A0;
- V_ULONG( dest + 4 ) = cl;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer (0);
- while (((V_ULONG( dest ) & 0x00800080) != (ch & 0x00800080)) ||
- ((V_ULONG( dest + 4 ) & 0x00800080) != (cl & 0x00800080))) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
- return (0);
-}