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authorWolfgang Denk <wd@denx.de>2010-10-05 22:54:53 +0200
committerWolfgang Denk <wd@denx.de>2010-10-06 22:22:24 +0200
commit544d97e9aa904e489f9e87bae6a6b41cb031cbe9 (patch)
tree66b3ba6c3442bbbd6b4b917aa1b73b07f7a78708 /board/siemens/pcu_e/flash.c
parent6f984adb31b9a591f12a960b0a8efc665c0ed3e8 (diff)
PCU_E: remove code for yet another corpse
The PCU_E board has long reached EOL, and support for it is no longer relevant in current versions of U-Boot. Remove it. Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'board/siemens/pcu_e/flash.c')
-rw-r--r--board/siemens/pcu_e/flash.c700
1 files changed, 0 insertions, 700 deletions
diff --git a/board/siemens/pcu_e/flash.c b/board/siemens/pcu_e/flash.c
deleted file mode 100644
index 3ce7bb329a..0000000000
--- a/board/siemens/pcu_e/flash.c
+++ /dev/null
@@ -1,700 +0,0 @@
-/*
- * (C) Copyright 2001
- * 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 <mpc8xx.h>
-
-#if defined(CONFIG_ENV_IS_IN_FLASH)
-# ifndef CONFIG_ENV_ADDR
-# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
-# endif
-# ifndef CONFIG_ENV_SIZE
-# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
-# endif
-# ifndef CONFIG_ENV_SECT_SIZE
-# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE
-# endif
-#endif
-
-/*---------------------------------------------------------------------*/
-#undef DEBUG_FLASH
-
-#ifdef DEBUG_FLASH
-#define DEBUGF(fmt,args...) printf(fmt ,##args)
-#else
-#define DEBUGF(fmt,args...)
-#endif
-/*---------------------------------------------------------------------*/
-
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size (vu_long *addr, flash_info_t *info);
-static int write_data (flash_info_t *info, ulong dest, ulong data);
-static void flash_get_offsets (ulong base, flash_info_t *info);
-
-/*-----------------------------------------------------------------------
- *
- * The PCU E uses an address map where flash banks are aligned top
- * down, so that the "first" flash bank ends at top of memory, and
- * the monitor entry point is at address (0xFFF00100). The second
- * flash bank is mapped immediately below bank 0.
- *
- * This is NOT in conformance to the "official" memory map!
- *
- */
-
-#define PCU_MONITOR_BASE ( (flash_info[0].start[0] + flash_info[0].size - 1) \
- - (0xFFFFFFFF - CONFIG_SYS_MONITOR_BASE) )
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init (void)
-{
- volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- volatile memctl8xx_t *memctl = &immap->im_memctl;
- unsigned long base, size_b0, size_b1;
- 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 - FIXME XXX */
-
- /*
- * Warning:
- *
- * Since the PCU E memory map assigns flash banks top down,
- * we swap the numbering later if both banks are equipped,
- * so they look like a contiguous area of memory.
- */
- DEBUGF("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_PRELIM);
-
- 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);
- }
-
- DEBUGF("## Get flash bank 2 size @ 0x%08x\n",FLASH_BASE6_PRELIM);
- size_b1 = flash_get_size((vu_long *)FLASH_BASE6_PRELIM, &flash_info[1]);
-
- DEBUGF("## Prelim. Flash bank sizes: %08lx + 0x%08lx\n", size_b0, size_b1);
-
- if (size_b1 > size_b0) {
- printf ("## ERROR: "
- "Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
- size_b1, size_b1<<20,
- size_b0, size_b0<<20
- );
- flash_info[0].flash_id = FLASH_UNKNOWN;
- flash_info[1].flash_id = FLASH_UNKNOWN;
- flash_info[0].sector_count = -1;
- flash_info[1].sector_count = -1;
- flash_info[0].size = 0;
- flash_info[1].size = 0;
- return (0);
- }
-
- DEBUGF ("## Before remap: "
- "BR0: 0x%08x OR0: 0x%08x "
- "BR6: 0x%08x OR6: 0x%08x\n",
- memctl->memc_br0, memctl->memc_or0,
- memctl->memc_br6, memctl->memc_or6);
-
- /* Remap FLASH according to real size */
- base = 0 - size_b0;
- memctl->memc_or0 = CONFIG_SYS_OR_TIMING_FLASH | (-size_b0 & 0xFFFF8000);
- memctl->memc_br0 = (base & BR_BA_MSK) | BR_PS_16 | BR_MS_GPCM | BR_V;
-
- DEBUGF("## BR0: 0x%08x OR0: 0x%08x\n",
- memctl->memc_br0, memctl->memc_or0);
-
- /* Re-do sizing to get full correct info */
- size_b0 = flash_get_size((vu_long *)base, &flash_info[0]);
- base = 0 - size_b0;
-
- flash_info[0].size = size_b0;
-
- flash_get_offsets (base, &flash_info[0]);
-
- /* monitor protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- PCU_MONITOR_BASE,
- PCU_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[0]);
-
-#ifdef CONFIG_ENV_IS_IN_FLASH
- /* ENV protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1,
- &flash_info[0]);
-#endif
-
- if (size_b1) {
- flash_info_t tmp_info;
-
- memctl->memc_or6 = CONFIG_SYS_OR_TIMING_FLASH | (-size_b1 & 0xFFFF8000);
- memctl->memc_br6 = ((base - size_b1) & BR_BA_MSK) |
- BR_PS_16 | BR_MS_GPCM | BR_V;
-
- DEBUGF("## New BR6: 0x%08x OR6: 0x%08x\n",
- memctl->memc_br6, memctl->memc_or6);
-
- /* Re-do sizing to get full correct info */
- size_b1 = flash_get_size((vu_long *)(base - size_b1),
- &flash_info[1]);
- base -= size_b1;
-
- flash_get_offsets (base, &flash_info[1]);
-
- flash_info[1].size = size_b1;
-
-#ifdef CONFIG_ENV_IS_IN_FLASH
- /* ENV protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1,
- &flash_info[1]);
-#endif
- /*
- * Swap bank numbers so that addresses are in ascending order
- */
- tmp_info = flash_info[0];
- flash_info[0] = flash_info[1];
- flash_info[1] = tmp_info;
- } else {
- memctl->memc_br1 = 0; /* invalidate bank */
-
- flash_info[1].flash_id = FLASH_UNKNOWN;
- flash_info[1].sector_count = -1;
- }
-
-
- DEBUGF("## Final Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1);
-
- return (size_b0 + size_b1);
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- int i;
- short n;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return;
- }
-
- if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_AMD) {
- return;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AMDL322T:
- case FLASH_AMDL323T:
- case FLASH_AMDL324T:
- /* set sector offsets for top boot block type */
-
- base += info->size;
- i = info->sector_count;
- for (n=0; n<8; ++n) { /* 8 x 8k boot sectors */
- base -= 8 << 10;
- --i;
- info->start[i] = base;
- }
- while (i > 0) { /* 64k regular sectors */
- base -= 64 << 10;
- --i;
- info->start[i] = base;
- }
- return;
- case FLASH_AMDL322B:
- case FLASH_AMDL323B:
- case FLASH_AMDL324B:
- /* set sector offsets for bottom boot block type */
- for (i=0; i<8; ++i) { /* 8 x 8k boot sectors */
- info->start[i] = base;
- base += 8 << 10;
- }
- while (base < info->size) { /* 64k regular sectors */
- info->start[i] = base;
- base += 64 << 10;
- ++i;
- }
- return;
- case FLASH_AMDL640:
- /* set sector offsets for dual boot block type */
- for (i=0; i<8; ++i) { /* 8 x 8k boot sectors */
- info->start[i] = base;
- base += 8 << 10;
- }
- n = info->sector_count - 8;
- while (i < n) { /* 64k regular sectors */
- info->start[i] = base;
- base += 64 << 10;
- ++i;
- }
- while (i < info->sector_count) { /* 8 x 8k boot sectors */
- info->start[i] = base;
- base += 8 << 10;
- ++i;
- }
- return;
- default:
- return;
- }
- /* NOTREACHED */
-}
-
-/*-----------------------------------------------------------------------
- */
-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;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AMDL322B: printf ("AM29DL322B (32 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AMDL322T: printf ("AM29DL322T (32 Mbit, top boot sector)\n");
- break;
- case FLASH_AMDL323B: printf ("AM29DL323B (32 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AMDL323T: printf ("AM29DL323T (32 Mbit, top boot sector)\n");
- break;
- case FLASH_AMDL324B: printf ("AM29DL324B (32 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AMDL324T: printf ("AM29DL324T (32 Mbit, top boot sector)\n");
- break;
- case FLASH_AMDL640: printf ("AM29DL640D (64 Mbit, dual boot sector)\n");
- break;
- default: printf ("Unknown Chip Type 0x%lX\n",
- info->flash_id);
- 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!
- */
-
-static ulong flash_get_size (vu_long *addr, flash_info_t *info)
-{
- short i;
- ushort value;
- vu_short *saddr = (vu_short *)addr;
-
- /* Write auto select command: read Manufacturer ID */
- saddr[0x0555] = 0x00AA;
- saddr[0x02AA] = 0x0055;
- saddr[0x0555] = 0x0090;
-
- value = saddr[0];
-
- DEBUGF("Manuf. ID @ 0x%08lx: 0x%04x\n", (ulong)addr, value);
-
- switch (value) {
- case (AMD_MANUFACT & 0xFFFF):
- info->flash_id = FLASH_MAN_AMD;
- break;
- case (FUJ_MANUFACT & 0xFFFF):
- info->flash_id = FLASH_MAN_FUJ;
- break;
- default:
- DEBUGF("Unknown Manufacturer ID\n");
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
- value = saddr[1]; /* device ID */
-
- DEBUGF("Device ID @ 0x%08lx: 0x%04x\n", (ulong)(&addr[1]), value);
-
- switch (value) {
-
- case (AMD_ID_DL322T & 0xFFFF):
- info->flash_id += FLASH_AMDL322T;
- info->sector_count = 71;
- info->size = 0x00400000;
- break; /* => 8 MB */
-
- case (AMD_ID_DL322B & 0xFFFF):
- info->flash_id += FLASH_AMDL322B;
- info->sector_count = 71;
- info->size = 0x00400000;
- break; /* => 8 MB */
-
- case (AMD_ID_DL323T & 0xFFFF):
- info->flash_id += FLASH_AMDL323T;
- info->sector_count = 71;
- info->size = 0x00400000;
- break; /* => 8 MB */
-
- case (AMD_ID_DL323B & 0xFFFF):
- info->flash_id += FLASH_AMDL323B;
- info->sector_count = 71;
- info->size = 0x00400000;
- break; /* => 8 MB */
-
- case (AMD_ID_DL324T & 0xFFFF):
- info->flash_id += FLASH_AMDL324T;
- info->sector_count = 71;
- info->size = 0x00400000;
- break; /* => 8 MB */
-
- case (AMD_ID_DL324B & 0xFFFF):
- info->flash_id += FLASH_AMDL324B;
- info->sector_count = 71;
- info->size = 0x00400000;
- break; /* => 8 MB */
- case (AMD_ID_DL640 & 0xFFFF):
- info->flash_id += FLASH_AMDL640;
- info->sector_count = 142;
- info->size = 0x00800000;
- break;
- default:
- DEBUGF("Unknown Device ID\n");
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
-
- }
-
- flash_get_offsets ((ulong)addr, info);
-
- /* check for protected sectors */
- for (i = 0; i < info->sector_count; i++) {
-#if 0
- /* read sector protection at sector address, (A7 .. A0) = 0x02 */
- /* D0 = 1 if protected */
- saddr = (vu_short *)(info->start[i]);
- info->protect[i] = saddr[2] & 1;
-#else
- info->protect[i] =0;
-#endif
- }
-
- if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) {
- printf ("** ERROR: sector count %d > max (%d) **\n",
- info->sector_count, CONFIG_SYS_MAX_FLASH_SECT);
- info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
- }
-
- saddr = (vu_short *)info->start[0];
- *saddr = 0x00F0; /* restore read mode */
-
- return (info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- vu_short *addr = (vu_short*)(info->start[0]);
- 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;
- }
-
- 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] = 0x00AA;
- addr[0x02AA] = 0x0055;
- addr[0x0555] = 0x0080;
- addr[0x0555] = 0x00AA;
- addr[0x02AA] = 0x0055;
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr = (vu_short*)(info->start[sect]);
- addr[0] = 0x0030;
- 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_short*)(info->start[l_sect]);
- while ((addr[0] & 0x0080) != 0x0080) {
- 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 */
- putc ('.');
- last = now;
- }
- }
-
-DONE:
- /* reset to read mode */
- addr = (vu_short *)info->start[0];
- addr[0] = 0x00F0; /* reset bank */
-
- printf (" done\n");
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-
-#define FLASH_WIDTH 2 /* flash bus width in bytes */
-
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- ulong cp, wp, data;
- int i, l, rc;
-
- wp = (addr & ~(FLASH_WIDTH-1)); /* get lower FLASH_WIDTH 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<FLASH_WIDTH && cnt>0; ++i) {
- data = (data << 8) | *src++;
- --cnt;
- ++cp;
- }
- for (; cnt==0 && i<FLASH_WIDTH; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- if ((rc = write_data(info, wp, data)) != 0) {
- return (rc);
- }
- wp += FLASH_WIDTH;
- }
-
- /*
- * handle FLASH_WIDTH aligned part
- */
- while (cnt >= FLASH_WIDTH) {
- data = 0;
- for (i=0; i<FLASH_WIDTH; ++i) {
- data = (data << 8) | *src++;
- }
- if ((rc = write_data(info, wp, data)) != 0) {
- return (rc);
- }
- wp += FLASH_WIDTH;
- cnt -= FLASH_WIDTH;
- }
-
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<FLASH_WIDTH && cnt>0; ++i, ++cp) {
- data = (data << 8) | *src++;
- --cnt;
- }
- for (; i<FLASH_WIDTH; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- return (write_data(info, wp, data));
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_data (flash_info_t *info, ulong dest, ulong data)
-{
- vu_short *addr = (vu_short*)(info->start[0]);
- vu_short *sdest = (vu_short *)dest;
- ushort sdata = (ushort)data;
- ushort sval;
- ulong start, passed;
- int flag, rc;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*sdest & sdata) != sdata) {
- return (2);
- }
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr[0x0555] = 0x00AA;
- addr[0x02AA] = 0x0055;
- addr[0x0555] = 0x00A0;
-
-#ifdef WORKAROUND_FOR_BROKEN_HARDWARE
- /* work around the timeout bugs */
- udelay(20);
-#endif
-
- *sdest = sdata;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- rc = 0;
- /* data polling for D7 */
- start = get_timer (0);
-
- for (passed=0; passed < CONFIG_SYS_FLASH_WRITE_TOUT; passed=get_timer(start)) {
-
- sval = *sdest;
-
- if ((sval & 0x0080) == (sdata & 0x0080))
- break;
-
- if ((sval & 0x0020) == 0) /* DQ5: Timeout? */
- continue;
-
- sval = *sdest;
-
- if ((sval & 0x0080) != (sdata & 0x0080))
- rc = 1;
-
- break;
- }
-
- if (rc) {
- DEBUGF ("Program cycle failed @ addr 0x%08lX: val %04X data %04X\n",
- dest, sval, sdata);
- }
-
- if (passed >= CONFIG_SYS_FLASH_WRITE_TOUT) {
- DEBUGF ("Timeout @ addr 0x%08lX: val %04X data %04X\n",
- dest, sval, sdata);
- rc = 1;
- }
-
- /* reset to read mode */
- addr = (vu_short *)info->start[0];
- addr[0] = 0x00F0; /* reset bank */
-
- return (rc);
-}
-
-/*-----------------------------------------------------------------------
- */