summaryrefslogtreecommitdiff
path: root/board/emk/top860
diff options
context:
space:
mode:
Diffstat (limited to 'board/emk/top860')
-rw-r--r--board/emk/top860/Makefile2
-rw-r--r--board/emk/top860/flash.c489
-rw-r--r--board/emk/top860/top860.c63
3 files changed, 18 insertions, 536 deletions
diff --git a/board/emk/top860/Makefile b/board/emk/top860/Makefile
index 13ce9fc..a74dd2f 100644
--- a/board/emk/top860/Makefile
+++ b/board/emk/top860/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
-OBJS = $(BOARD).o flash.o
+OBJS = $(BOARD).o ../common/flash.o ../common/vpd.o ../common/am79c874.o
$(LIB): .depend $(OBJS)
$(AR) crv $@ $(OBJS)
diff --git a/board/emk/top860/flash.c b/board/emk/top860/flash.c
deleted file mode 100644
index 0f827df..0000000
--- a/board/emk/top860/flash.c
+++ /dev/null
@@ -1,489 +0,0 @@
-/*
- * (C) Copyright 2003
- * EMK Elektronik GmbH <www.emk-elektronik.de>
- * Reinhard Meyer <r.meyer@emk-elektronik.de>
- *
- * copied from the BMW Port - seems that its similiar enough
- * to be easily adaped ;) --- Well, it turned out to become a
- * merger between parts of the EMKstax Flash routines and the
- * BMW funtion frames...
- *
- * (C) Copyright 2000
- * 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>
-
-#define FLASH_WORD_SIZE unsigned short
-#define FLASH_WORD_WIDTH (sizeof (FLASH_WORD_SIZE))
-
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static int write_word (flash_info_t *info, ulong dest, ulong data);
-
-
-/*****************************************************************************
- * software product ID entry/exit
- *****************************************************************************/
-static void FlashProductIdMode (
- volatile FLASH_WORD_SIZE *b,
- int on_off)
-{
- b[0x5555] = 0xaa;
- b[0x2aaa] = 0x55;
- b[0x5555] = on_off ? 0x90 : 0xf0;
-}
-
-/*****************************************************************************
- * sector erase start
- *****************************************************************************/
-static void FlashSectorErase (
- volatile FLASH_WORD_SIZE *b,
- volatile FLASH_WORD_SIZE *a)
-{
- b[0x5555] = 0xaa;
- b[0x2aaa] = 0x55;
- b[0x5555] = 0x80;
- b[0x5555] = 0xaa;
- b[0x2aaa] = 0x55;
- a[0] = 0x30;
-}
-
-/*****************************************************************************
- * program a word
- *****************************************************************************/
-static void FlashProgWord (
- volatile FLASH_WORD_SIZE *b,
- volatile FLASH_WORD_SIZE *a,
- FLASH_WORD_SIZE v)
-{
- b[0x5555] = 0xaa;
- b[0x2aaa] = 0x55;
- b[0x5555] = 0xa0;
- a[0] = v;
-}
-
-/*****************************************************************************
- * reset bank, back to read mode
- *****************************************************************************/
-static void FlashReset (volatile FLASH_WORD_SIZE *b)
-{
- b[0] = 0xf0;
-}
-
-/*****************************************************************************
- * identify FLASH chip
- * this code is a stripped version of the FlashGetType() function in EMKstax
- *****************************************************************************/
-unsigned long flash_init (void)
-{
- volatile FLASH_WORD_SIZE * const flash = (volatile FLASH_WORD_SIZE *) CFG_FLASH_BASE;
- FLASH_WORD_SIZE manu, dev;
- flash_info_t * const pflinfo = &flash_info[0];
- int j;
-
- /* get Id Bytes */
- FlashProductIdMode (flash, 1);
- manu = flash[0];
- dev = flash[1];
- FlashProductIdMode (flash, 0);
-
- pflinfo->size = 0;
- pflinfo->sector_count = 0;
- pflinfo->flash_id = 0xffffffff;
- pflinfo->portwidth = FLASH_CFI_16BIT;
- pflinfo->chipwidth = FLASH_CFI_BY16;
-
- switch (manu&0xff)
- {
- case 0x01: /* AMD */
- pflinfo->flash_id = FLASH_MAN_AMD;
- switch (dev&0xff)
- {
- case 0x49:
- pflinfo->size = 0x00200000;
- pflinfo->sector_count = 35;
- pflinfo->flash_id |= FLASH_AM160B;
- pflinfo->start[0] = CFG_FLASH_BASE;
- pflinfo->start[1] = CFG_FLASH_BASE + 0x4000;
- pflinfo->start[2] = CFG_FLASH_BASE + 0x6000;
- pflinfo->start[3] = CFG_FLASH_BASE + 0x8000;
- for (j = 4; j < 35; j++)
- {
- pflinfo->start[j] = CFG_FLASH_BASE + 0x00010000 * (j-3);
- }
- break;
-
- case 0xf9:
- pflinfo->size = 0x00400000;
- pflinfo->sector_count = 71;
- pflinfo->flash_id |= FLASH_AM320B;
- pflinfo->start[0] = CFG_FLASH_BASE;
- pflinfo->start[1] = CFG_FLASH_BASE + 0x4000;
- pflinfo->start[2] = CFG_FLASH_BASE + 0x6000;
- pflinfo->start[3] = CFG_FLASH_BASE + 0x8000;
- for (j = 0; j < 8; j++)
- {
- pflinfo->start[j] = CFG_FLASH_BASE + 0x00002000 * (j);
- }
- for (j = 8; j < 71; j++)
- {
- pflinfo->start[j] = CFG_FLASH_BASE + 0x00010000 * (j-7);
- }
- break;
-
- default:
- printf ("unknown AMD dev=%x ", dev);
- pflinfo->flash_id |= FLASH_UNKNOWN;
- }
- break;
-
- default:
- printf ("unknown manu=%x ", manu);
- }
- return pflinfo->size;
-}
-
-/*****************************************************************************
- * print info about a FLASH
- *****************************************************************************/
-void flash_print_info (flash_info_t *info)
-{
- static const char unk[] = "Unknown";
- unsigned int i;
- const char *mfct=unk,
- *type=unk;
-
- if(info->flash_id != FLASH_UNKNOWN)
- {
- switch (info->flash_id & FLASH_VENDMASK)
- {
- case FLASH_MAN_AMD:
- mfct = "AMD";
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK)
- {
- case FLASH_AM160B:
- type = "AM29LV160B (16 Mbit, bottom boot sect)";
- break;
- case FLASH_AM320B:
- type = "AM29LV320B (32 Mbit, bottom boot sect)";
- break;
- }
- }
-
- printf (
- "\n Brand: %s Type: %s\n"
- " Size: %lu KB in %d Sectors\n",
- mfct,
- type,
- info->size >> 10,
- info->sector_count
- );
-
- printf (" Sector Start Addresses:");
-
- for (i = 0; i < info->sector_count; i++)
- {
- unsigned long size;
- unsigned int erased;
- unsigned long *flash = (unsigned long *) info->start[i];
-
- /*
- * Check if whole sector is erased
- */
- size =
- (i != (info->sector_count - 1)) ?
- (info->start[i + 1] - info->start[i]) >> 2 :
- (info->start[0] + info->size - info->start[i]) >> 2;
-
- for (
- flash = (unsigned long *) info->start[i], erased = 1;
- (flash != (unsigned long *) info->start[i] + size) && erased;
- flash++
- )
- erased = *flash == ~0x0UL;
-
- printf (
- "%s %08lX %s %s",
- (i % 5) ? "" : "\n ",
- info->start[i],
- erased ? "E" : " ",
- info->protect[i] ? "RO" : " "
- );
- }
-
- puts ("\n");
- return;
-}
-
-/*****************************************************************************
- * erase one or more sectors
- *****************************************************************************/
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(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_MAN_STM | FLASH_AMD_COMP)))
- {
- 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 */
- FlashSectorErase ((FLASH_WORD_SIZE *)info->start[0], (FLASH_WORD_SIZE *)info->start[sect]);
- 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 = (FLASH_WORD_SIZE *)info->start[l_sect];
- while ((addr[0] & 0x0080) != 0x0080)
- {
- 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 */
- serial_putc ('.');
- last = now;
- }
- }
-
- DONE:
- /* reset to read mode */
- FlashReset ((FLASH_WORD_SIZE *)info->start[0]);
-
- 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 & ~(FLASH_WORD_WIDTH-1)); /* get lower word aligned address */
-
- /*
- * handle unaligned start bytes, if there are...
- */
- if ((l = addr - wp) != 0)
- {
- data = 0;
-
- /* get the current before the new data into our data word */
- for (i=0, cp=wp; i<l; ++i, ++cp)
- {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- /* now merge the to be programmed values */
- for (; i<4 && cnt>0; ++i, ++cp, --cnt)
- {
- data = (data << 8) | *src++;
- }
-
- /* get the current after the new data into our data word */
- for (; cnt==0 && i<FLASH_WORD_WIDTH; ++i, ++cp)
- {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- /* now write the combined word */
- if ((rc = write_word (info, wp, data)) != 0)
- {
- return (rc);
- }
- wp += FLASH_WORD_WIDTH;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= FLASH_WORD_WIDTH)
- {
- data = 0;
- for (i=0; i<FLASH_WORD_WIDTH; ++i)
- {
- data = (data << 8) | *src++;
- }
- if ((rc = write_word (info, wp, data)) != 0)
- {
- return (rc);
- }
- wp += FLASH_WORD_WIDTH;
- cnt -= FLASH_WORD_WIDTH;
- }
-
- if (cnt == 0)
- {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes, if there are...
- */
- data = 0;
-
- /* now merge the to be programmed values */
- for (i=0, cp=wp; i<FLASH_WORD_WIDTH && cnt>0; ++i, ++cp)
- {
- data = (data << 8) | *src++;
- --cnt;
- }
-
- /* get the current after the new data into our data word */
- for (; i<FLASH_WORD_WIDTH; ++i, ++cp)
- {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- /* now write the combined word */
- 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;
- FLASH_WORD_SIZE data2 = data;
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*dest2 & data2) != data2)
- {
- return (2);
- }
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
-
- FlashProgWord (addr2, dest2, data2);
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts ();
-
- /* data polling for D7 */
- start = get_timer (0);
- while ((*dest2 & 0x0080) != (data2 & 0x0080))
- {
- if (get_timer (start) > CFG_FLASH_WRITE_TOUT)
- {
- return (1);
- }
- }
-
- return (0);
-}
-
-/*-----------------------------------------------------------------------
- */
diff --git a/board/emk/top860/top860.c b/board/emk/top860/top860.c
index d13be98..931c0d1 100644
--- a/board/emk/top860/top860.c
+++ b/board/emk/top860/top860.c
@@ -120,58 +120,29 @@ long int initdram (int board_type)
}
/*****************************************************************************
+ * prepare for FLASH detection
+ *****************************************************************************/
+void flash_preinit(void)
+{
+}
+
+/*****************************************************************************
+ * finalize FLASH setup
+ *****************************************************************************/
+void flash_afterinit(uint bank, ulong start, ulong size)
+{
+}
+
+/*****************************************************************************
* otherinits after RAM is there and we are relocated to RAM
* note: though this is an int function, nobody cares for the result!
*****************************************************************************/
int misc_init_r (void)
{
/* read 'factory' part of EEPROM */
- uchar buf[81];
- uchar *p;
- uint length;
- uint addr;
- uint len;
-
- /* get length first */
- addr = CFG_FACT_OFFSET;
- if (eeprom_read (CFG_I2C_FACT_ADDR, addr, buf, 2)) {
- bailout:
- printf ("cannot read factory configuration\n");
- printf ("be sure to set ethaddr yourself!\n");
- return 0;
- }
- length = buf[0] + (buf[1] << 8);
- addr += 2;
+ extern void read_factory_r (void);
+ read_factory_r ();
- /* sanity check */
- if (length < 20 || length > CFG_FACT_SIZE - 2)
- goto bailout;
-
- /* read lines */
- while (length > 0) {
- /* read one line */
- len = length > 80 ? 80 : length;
- if (eeprom_read (CFG_I2C_FACT_ADDR, addr, buf, len))
- goto bailout;
- /* mark end of buffer */
- buf[len] = 0;
- /* search end of line */
- for (p = buf; *p && *p != 0x0a; p++);
- if (!*p)
- goto bailout;
- *p++ = 0;
- /* advance to next line start */
- length -= p - buf;
- addr += p - buf;
- /*printf ("%s\n", buf); */
- /* search for our specific entry */
- if (!strncmp ((char *) buf, "[RLA/lan/Ethernet] ", 19)) {
- setenv ("ethaddr", buf + 19);
- } else if (!strncmp ((char *) buf, "[BOARD/SERIAL] ", 15)) {
- setenv ("serial#", buf + 15);
- } else if (!strncmp ((char *) buf, "[BOARD/TYPE] ", 13)) {
- setenv ("board_id", buf + 13);
- }
- }
return (0);
}
+
generated by cgit v1.1 at 2024-12-03 12:18:37 +0000