Major cleanup for AMCC PPC4xx eval boards.

Patch by Stefan Roese, 01 Aug 2005

1 files changed, 0 insertions, 623 deletions

diff --git a/board/ocotea/flash.c b/board/ocotea/flash.c
deleted file mode 100644
index bc0d2c9..0000000
--- a/board/ocotea/flash.c
+++ /dev/null
@@ -1,623 +0,0 @@
-/*
- * (C) Copyright 2004-2005
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
- * Add support for Am29F016D and dynamic switch setting.
- *
- * 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
- */
-
-/*
- * Modified 4/5/2001
- * Wait for completion of each sector erase command issued
- * 4/5/2001
- * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
- */
-
-#include <common.h>
-#include <ppc4xx.h>
-#include <asm/processor.h>
-
-#undef DEBUG
-
-#ifdef DEBUG
-#define DEBUGF(x...) printf(x)
-#else
-#define DEBUGF(x...)
-#endif				/* DEBUG */
-
-#define     BOOT_SMALL_FLASH        0x40 /* 01000000 */
-#define     FLASH_ONBD_N            2	/* 00000010 */
-#define     FLASH_SRAM_SEL          1	/* 00000001 */
-#define     FLASH_ONBD_N            2	/* 00000010 */
-#define     FLASH_SRAM_SEL          1	/* 00000001 */
-
-#define     BOOT_SMALL_FLASH_VAL    4
-#define     FLASH_ONBD_N_VAL        2
-#define     FLASH_SRAM_SEL_VAL      1
-
-
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips        */
-
-static unsigned long flash_addr_table[8][CFG_MAX_FLASH_BANKS] = {
-	{0xFF800000, 0xFF880000, 0xFFC00000},	/* 0:000: configuraton 4 */
-	{0xFF900000, 0xFF980000, 0xFFC00000},	/* 1:001: configuraton 3 */
-	{0x00000000, 0x00000000, 0x00000000},	/* 2:010: configuraton 8 */
-	{0x00000000, 0x00000000, 0x00000000},	/* 3:011: configuraton 7 */
-	{0xFFE00000, 0xFFF00000, 0xFF800000},	/* 4:100: configuraton 2 */
-	{0xFFF00000, 0xFFF80000, 0xFF800000},	/* 5:101: configuraton 1 */
-	{0x00000000, 0x00000000, 0x00000000},	/* 6:110: configuraton 6 */
-	{0x00000000, 0x00000000, 0x00000000}	/* 7:111: configuraton 5 */
-};
-
-/*-----------------------------------------------------------------------
- * 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);
-
-
-#ifdef CONFIG_OCOTEA
-#define ADDR0           0x5555
-#define ADDR1           0x2aaa
-#define FLASH_WORD_SIZE unsigned char
-#endif
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init(void)
-{
-	unsigned long total_b = 0;
-	unsigned long size_b[CFG_MAX_FLASH_BANKS];
-	unsigned char *fpga_base = (unsigned char *) CFG_FPGA_BASE;
-	unsigned char switch_status;
-	unsigned short index = 0;
-	int i;
-
-	/* read FPGA base register FPGA_REG0 */
-	switch_status = *fpga_base;
-
-	/* check the bitmap of switch status */
-	if (switch_status & BOOT_SMALL_FLASH) {
-		index += BOOT_SMALL_FLASH_VAL;
-	}
-	if (switch_status & FLASH_ONBD_N) {
-		index += FLASH_ONBD_N_VAL;
-	}
-	if (switch_status & FLASH_SRAM_SEL) {
-		index += FLASH_SRAM_SEL_VAL;
-	}
-
-	DEBUGF("\n");
-	DEBUGF("FLASH: Index: %d\n", index);
-
-	/* Init: no FLASHes known */
-	for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
-		flash_info[i].flash_id = FLASH_UNKNOWN;
-		flash_info[i].sector_count = -1;
-		flash_info[i].size = 0;
-
-		/* check whether the address is 0 */
-		if (flash_addr_table[index][i] == 0) {
-			continue;
-		}
-
-		/* call flash_get_size() to initialize sector address */
-		size_b[i] = flash_get_size((vu_long *) flash_addr_table[index][i], &flash_info[i]);
-		flash_info[i].size = size_b[i];
-		if (flash_info[i].flash_id == FLASH_UNKNOWN) {
-			printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
-				i, size_b[i], size_b[i] << 20);
-			flash_info[i].sector_count = -1;
-			flash_info[i].size = 0;
-		}
-
-		total_b += flash_info[i].size;
-	}
-
-	/* Monitor protection ON by default */
-	(void)flash_protect(FLAG_PROTECT_SET,
-			    -CFG_MONITOR_LEN,
-			    0xffffffff,
-			    &flash_info[2]);
-
-	return total_b;
-}
-
-/*-----------------------------------------------------------------------
- */
-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_STM:
-		printf("STM ");
-		break;
-	case FLASH_MAN_FUJ:
-		printf("FUJITSU ");
-		break;
-	case FLASH_MAN_SST:
-		printf("SST ");
-		break;
-	default:
-		printf("Unknown Vendor ");
-		break;
-	}
-
-	switch (info->flash_id & FLASH_TYPEMASK) {
-	case FLASH_AM040:
-		printf("AM29F040 (512 Kbit, uniform sector size)\n");
-		break;
-	case FLASH_AM400B:
-		printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
-		break;
-	case FLASH_AM400T:
-		printf("AM29LV400T (4 Mbit, top boot sector)\n");
-		break;
-	case FLASH_AM800B:
-		printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
-		break;
-	case FLASH_AM800T:
-		printf("AM29LV800T (8 Mbit, top boot sector)\n");
-		break;
-	case FLASH_AM160B:
-		printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
-		break;
-	case FLASH_AM160T:
-		printf("AM29LV160T (16 Mbit, top boot sector)\n");
-		break;
-	case FLASH_AM320B:
-		printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
-		break;
-	case FLASH_AM320T:
-		printf("AM29LV320T (32 Mbit, top boot sector)\n");
-		break;
-	case FLASH_AMDLV033C:
-		printf("AM29LV033C (32 Mbit, top boot sector)\n");
-		break;
-	case FLASH_SST800A:
-		printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
-		break;
-	case FLASH_SST160A:
-		printf("SST39LF/VF160 (16 Mbit, 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;
-
-	DEBUGF("FLASH ADDR: %08x\n", (unsigned) addr);
-
-	/* Write auto select command: read Manufacturer ID */
-	udelay(10000);
-	addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
-	udelay(1000);
-	addr2[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
-	udelay(1000);
-	addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00900090;
-	udelay(1000);
-
-	value = addr2[0];
-	DEBUGF("FLASH MANUFACT: %x\n", value);
-
-	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;
-		return (0);		/* no or unknown flash  */
-	}
-
-	value = addr2[1];		/* device ID            */
-
-	DEBUGF("\nFLASH DEVICEID: %x\n", value);
-
-	switch (value) {
-	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) AMD_ID_F040B:
-		info->flash_id += FLASH_AM040;
-		info->sector_count = 8;
-		info->size = 0x0080000;	/* => 512 ko */
-		break;
-	case (FLASH_WORD_SIZE) STM_ID_M29W040B:
-		info->flash_id += FLASH_AM040;
-		info->sector_count = 8;
-		info->size = 0x0080000;	/* => 512 ko */
-		break;
-	case (FLASH_WORD_SIZE) AMD_ID_LV033C:
-		info->flash_id += FLASH_AMDLV033C;
-		info->sector_count = 64;
-		info->size = 0x00400000;
-		break;			/* => 4 MB              */
-	default:
-		info->flash_id = FLASH_UNKNOWN;
-		return (0);		/* => no or unknown flash */
-	}
-
-	/* set up sector start address table */
-	if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
-	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
-	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
-		for (i = 0; i < info->sector_count; i++)
-			info->start[i] = base + (i * 0x00010000);
-	} else {
-		if (info->flash_id & FLASH_BTYPE) {
-			/* set sector offsets for bottom boot block type        */
-			info->start[0] = base + 0x00000000;
-			info->start[1] = base + 0x00004000;
-			info->start[2] = base + 0x00006000;
-			info->start[3] = base + 0x00008000;
-			for (i = 4; i < info->sector_count; i++) {
-				info->start[i] = base + (i * 0x00010000) - 0x00030000;
-			}
-		} else {
-			/* set sector offsets for top boot block type           */
-			i = info->sector_count - 1;
-			info->start[i--] = base + info->size - 0x00004000;
-			info->start[i--] = base + info->size - 0x00006000;
-			info->start[i--] = base + info->size - 0x00008000;
-			for (; i >= 0; i--) {
-				info->start[i] = base + i * 0x00010000;
-			}
-		}
-	}
-
-	/* 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]);
-
-		/* For AMD29033C flash we need to resend the command of	*
-		 * reading flash protection for upper 8 Mb of flash	*/
-		if ( i == 32 ) {
-			addr2[ADDR0] = (FLASH_WORD_SIZE) 0xAAAAAAAA;
-			addr2[ADDR1] = (FLASH_WORD_SIZE) 0x55555555;
-			addr2[ADDR0] = (FLASH_WORD_SIZE) 0x90909090;
-		}
-
-		if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
-			info->protect[i] = 0;
-		else
-			info->protect[i] = addr2[2] & 1;
-	}
-
-	/* issue bank reset to return to read mode */
-	addr2[0] = (FLASH_WORD_SIZE) 0x00F000F0;
-
-	/*
-	 * Prevent writes to uninitialized FLASH.
-	 */
-	if (info->flash_id != FLASH_UNKNOWN) {
-		/* ? ? ? */
-	}
-
-	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 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;
-}
-
-/*-----------------------------------------------------------------------
- * 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);
-}