X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=board%2Fgenietv%2Fflash.c;h=5f57978a333c4abff7f98724917c1cf9f5ce4559;hb=ae12c751e5532904090c23f079e4b59160caef52;hp=5313ad8b0a2a8616a8e2dee4f64229562a080200;hpb=50bd0057ba8fceeb48533f8b1a652ccd0e170838;p=oweals%2Fu-boot.git

diff --git a/board/genietv/flash.c b/board/genietv/flash.c
index 5313ad8b0a..5f57978a33 100644
--- a/board/genietv/flash.c
+++ b/board/genietv/flash.c
@@ -1,55 +1,40 @@
 /*
- * (C) Copyright 2000
+ * (C) Copyright 2000-2011
  * 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
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
 #include <mpc8xx.h>
 
-flash_info_t	flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
+flash_info_t	flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
 
 /*-----------------------------------------------------------------------
  * 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);
-static void flash_get_offsets (ulong base, flash_info_t *info);
+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);
 
 /*-----------------------------------------------------------------------
  */
 
-unsigned long flash_init (void)
+unsigned long flash_init(void)
 {
-	unsigned long size_b0, size_b1;
+	unsigned long size_b0;
 	int i;
 
 	/* Init: no FLASHes known */
-	for (i=0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i)
-	    flash_info[i].flash_id = FLASH_UNKNOWN;
+	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i)
+		flash_info[i].flash_id = FLASH_UNKNOWN;
 
 	/* Detect size */
-	size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE, &flash_info[0]);
+	size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE,
+			&flash_info[0]);
 
 	/* Setup offsets */
-	flash_get_offsets (CONFIG_SYS_FLASH_BASE, &flash_info[0]);
+	flash_get_offsets(CONFIG_SYS_FLASH_BASE, &flash_info[0]);
 
 #if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
 	/* Monitor protection ON by default */
@@ -59,21 +44,15 @@ unsigned long flash_init (void)
 		      &flash_info[0]);
 #endif
 
-	size_b1 = 0 ;
-
-	flash_info[1].flash_id = FLASH_UNKNOWN;
-	flash_info[1].sector_count = -1;
-
 	flash_info[0].size = size_b0;
-	flash_info[1].size = size_b1;
 
-	return (size_b0 + size_b1);
+	return size_b0;
 }
 
 /*-----------------------------------------------------------------------
  * Fix this to support variable sector sizes
 */
-static void flash_get_offsets (ulong base, flash_info_t *info)
+static void flash_get_offsets(ulong base, flash_info_t *info)
 {
 	int i;
 
@@ -87,73 +66,85 @@ static void flash_get_offsets (ulong base, flash_info_t *info)
 
 /*-----------------------------------------------------------------------
  */
-void flash_print_info  (flash_info_t *info)
+void flash_print_info(flash_info_t *info)
 {
 	int i;
 
-	if (info->flash_id == FLASH_UNKNOWN)
-	{
-		puts ("missing or unknown FLASH type\n");
+	if (info->flash_id == FLASH_UNKNOWN) {
+		puts("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_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_AM040:	printf ("29F040 or 29LV040 (4 Mbit, uniform sectors)\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;
-		default:		printf ("Unknown Chip Type\n");
-					break;
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_AM040:
+		printf("29F040 or 29LV040 (4 Mbit, uniform sectors)\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;
+	default:
+		printf("Unknown Chip Type\n");
+		break;
 	}
 
 	if (info->size >> 20) {
-	    printf ("  Size: %ld MB in %d Sectors\n",
-		info->size >> 20,
-		info->sector_count);
+		printf("  Size: %ld MB in %d Sectors\n",
+			info->size >> 20,
+			info->sector_count);
 	} else {
-	    printf ("  Size: %ld KB in %d Sectors\n",
-		info->size >> 10,
-		info->sector_count);
+		printf("  Size: %ld KB in %d Sectors\n",
+			info->size >> 10,
+			info->sector_count);
 	}
 
-	puts ("  Sector Start Addresses:");
+	puts("  Sector Start Addresses:");
 
-	for (i=0; i<info->sector_count; ++i)
-	{
+	for (i = 0; i < info->sector_count; ++i) {
 		if ((i % 5) == 0)
-		{
-			puts ("\n   ");
-		}
+			puts("\n   ");
 
-		printf (" %08lX%s",
+		printf(" %08lX%s",
 			info->start[i],
 			info->protect[i] ? " (RO)" : "     ");
 	}
 
-	putc ('\n');
+	putc('\n');
 	return;
 }
 /*-----------------------------------------------------------------------
@@ -163,7 +154,7 @@ void flash_print_info  (flash_info_t *info)
  * The following code cannot be run from FLASH!
  */
 
-static ulong flash_get_size (vu_long *addr, flash_info_t *info)
+static ulong flash_get_size(vu_long *addr, flash_info_t *info)
 {
 	short i;
 	volatile unsigned char *caddr;
@@ -173,9 +164,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 
 	/* Write auto select command: read Manufacturer ID */
 
-#if 0
-	printf("Base address is: %08x\n", caddr);
-#endif
+	debug("Base address is: %8p\n", caddr);
 
 	caddr[0x0555] = 0xAA;
 	caddr[0x02AA] = 0x55;
@@ -183,51 +172,47 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 
 	value = caddr[0];
 
-#if 0
-	printf("Manufact ID: %02x\n", value);
-#endif
-	switch (value)
-	{
-		case 0x1: /* AMD_MANUFACT */
-			info->flash_id = FLASH_MAN_AMD;
-		break;
+	debug("Manufact ID: %02x\n", value);
 
-		case 0x4: /* FUJ_MANUFACT */
-			info->flash_id = FLASH_MAN_FUJ;
+	switch (value) {
+	case 0x1: /* AMD_MANUFACT */
+		info->flash_id = FLASH_MAN_AMD;
+		break;
+	case 0x4: /* FUJ_MANUFACT */
+		info->flash_id = FLASH_MAN_FUJ;
+		break;
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
 		break;
-
-		default:
-			info->flash_id = FLASH_UNKNOWN;
-			info->sector_count = 0;
-			info->size = 0;
-			break;
 	}
 
 	value = caddr[1];			/* device ID		*/
-#if 0
-	printf("Device ID: %02x\n", value);
-#endif
-	switch (value)
-	{
-		case AMD_ID_LV040B:
-			info->flash_id += FLASH_AM040;
-			info->sector_count = 8;
-			info->size = 0x00080000;
-			break;				/* => 512Kb		*/
-
-		default:
-			info->flash_id = FLASH_UNKNOWN;
-			return (0);			/* => no or unknown flash */
 
+	debug("Device ID: %02x\n", value);
+
+	switch (value) {
+	case AMD_ID_LV040B:
+		info->flash_id += FLASH_AM040;
+		info->sector_count = 8;
+		info->size = 0x00080000;
+		break;				/* => 512Kb		*/
+
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		return 0;			/* => no or unknown flash */
 	}
 
-	flash_get_offsets ((ulong)addr, &flash_info[0]);
+	flash_get_offsets((ulong)addr, &flash_info[0]);
 
 	/* 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 */
+	for (i = 0; i < info->sector_count; i++) {
+		/*
+		 * read sector protection at sector address,
+		 * (A7 .. A0) = 0x02
+		 * D0 = 1 if protected
+		 */
 		caddr = (volatile unsigned char *)(info->start[i]);
 		info->protect[i] = caddr[2] & 1;
 	}
@@ -235,52 +220,47 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 	/*
 	 * Prevent writes to uninitialized FLASH.
 	 */
-	if (info->flash_id != FLASH_UNKNOWN)
-	{
+	if (info->flash_id != FLASH_UNKNOWN) {
 		caddr = (volatile unsigned char *)info->start[0];
 		*caddr = 0xF0;	/* reset bank */
 	}
 
-	return (info->size);
+	return info->size;
 }
 
-
-/*-----------------------------------------------------------------------
- */
-
-int	flash_erase (flash_info_t *info, int s_first, int s_last)
+int	flash_erase(flash_info_t *info, int s_first, int s_last)
 {
-	volatile unsigned char *addr = (volatile unsigned char *)(info->start[0]);
+	volatile unsigned char *addr =
+		(volatile unsigned char *)(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");
-		}
+		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 - aborted\n");
+		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]) {
+	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",
+		printf("- Warning: %d protected sectors will not be erased!\n",
 			prot);
 	} else {
-		printf ("\n");
+		printf("\n");
 	}
 
 	l_sect = -1;
@@ -295,7 +275,7 @@ int	flash_erase (flash_info_t *info, int s_first, int s_last)
 	addr[0x02AA] = 0x55;
 
 	/* Start erase on unprotected sectors */
-	for (sect = s_first; sect<=s_last; sect++) {
+	for (sect = s_first; sect <= s_last; sect++) {
 		if (info->protect[sect] == 0) {	/* not protected */
 			addr = (volatile unsigned char *)(info->start[sect]);
 			addr[0] = 0x30;
@@ -308,7 +288,7 @@ int	flash_erase (flash_info_t *info, int s_first, int s_last)
 		enable_interrupts();
 
 	/* wait at least 80us - let's wait 1 ms */
-	udelay (1000);
+	udelay(1000);
 
 	/*
 	 * We wait for the last triggered sector
@@ -316,19 +296,21 @@ int	flash_erase (flash_info_t *info, int s_first, int s_last)
 	if (l_sect < 0)
 		goto DONE;
 
-	start = get_timer (0);
+	start = get_timer(0);
 	last  = start;
 	addr = (volatile unsigned char *)(info->start[l_sect]);
 
-	while ((addr[0] & 0xFF) != 0xFF)
-	{
-		if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
-			printf ("Timeout\n");
+	while ((addr[0] & 0xFF) != 0xFF) {
+
+		now = get_timer(start);
+
+		if (now > CONFIG_SYS_FLASH_ERASE_TOUT) {
+			printf("Timeout\n");
 			return 1;
 		}
 		/* show that we're waiting */
 		if ((now - last) > 1000) {	/* every second */
-			putc ('.');
+			putc('.');
 			last = now;
 		}
 	}
@@ -339,7 +321,7 @@ DONE:
 
 	addr[0] = 0xF0;	/* reset bank */
 
-	printf (" done\n");
+	printf(" done\n");
 	return 0;
 }
 
@@ -350,7 +332,7 @@ DONE:
  * 2 - Flash not erased
  */
 
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
 {
 	ulong cp, wp, data;
 	int i, l, rc;
@@ -360,23 +342,26 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
 	/*
 	 * handle unaligned start bytes
 	 */
-	if ((l = addr - wp) != 0) {
+	l = addr - wp;
+
+	if (l != 0) {
 		data = 0;
-		for (i=0, cp=wp; i<l; ++i, ++cp) {
+		for (i = 0, cp = wp; i < l; ++i, ++cp)
 			data = (data << 8) | (*(uchar *)cp);
-		}
-		for (; i<4 && cnt>0; ++i) {
+
+		for (; i < 4 && cnt > 0; ++i) {
 			data = (data << 8) | *src++;
 			--cnt;
 			++cp;
 		}
-		for (; cnt==0 && i<4; ++i, ++cp) {
+		for (; cnt == 0 && i < 4; ++i, ++cp)
 			data = (data << 8) | (*(uchar *)cp);
-		}
 
-		if ((rc = write_word(info, wp, data)) != 0) {
-			return (rc);
-		}
+		rc = write_word(info, wp, data);
+
+		if (rc != 0)
+			return rc;
+
 		wp += 4;
 	}
 
@@ -385,33 +370,33 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
 	 */
 	while (cnt >= 4) {
 		data = 0;
-		for (i=0; i<4; ++i) {
+		for (i = 0; i < 4; ++i)
 			data = (data << 8) | *src++;
-		}
-		if ((rc = write_word(info, wp, data)) != 0) {
-			return (rc);
-		}
+
+		rc = write_word(info, wp, data);
+
+		if (rc != 0)
+			return rc;
+
 		wp  += 4;
 		cnt -= 4;
 	}
 
-	if (cnt == 0) {
-		return (0);
-	}
+	if (cnt == 0)
+		return 0;
 
 	/*
 	 * handle unaligned tail bytes
 	 */
 	data = 0;
-	for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
+	for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
 		data = (data << 8) | *src++;
 		--cnt;
 	}
-	for (; i<4; ++i, ++cp) {
+	for (; i < 4; ++i, ++cp)
 		data = (data << 8) | (*(uchar *)cp);
-	}
 
-	return (write_word(info, wp, data));
+	return write_word(info, wp, data);
 }
 
 /*-----------------------------------------------------------------------
@@ -420,10 +405,11 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
  * 1 - write timeout
  * 2 - Flash not erased
  */
-static int write_word (flash_info_t *info, ulong dest, ulong data)
+static int write_word(flash_info_t *info, ulong dest, ulong data)
 {
-	volatile unsigned char *addr = (volatile unsigned char*)(info->start[0]),
-				*cdest,*cdata;
+	volatile unsigned char *cdest, *cdata;
+	volatile unsigned char *addr =
+		(volatile unsigned char *)(info->start[0]);
 	ulong start;
 	int flag, count = 4 ;
 
@@ -431,39 +417,33 @@ static int write_word (flash_info_t *info, ulong dest, ulong data)
 	cdata = (volatile unsigned char *)&data ;
 
 	/* Check if Flash is (sufficiently) erased */
-	if ((*((vu_long *)dest) & data) != data) {
-		return (2);
-	}
+	if ((*((vu_long *)dest) & data) != data)
+		return 2;
 
-	while(count--)
-	{
-	    /* Disable interrupts which might cause a timeout here */
-	    flag = disable_interrupts();
+	while (count--) {
 
-	    addr[0x0555] = 0xAA;
-	    addr[0x02AA] = 0x55;
-	    addr[0x0555] = 0xA0;
+		/* Disable interrupts which might cause a timeout here */
+		flag = disable_interrupts();
 
-	    *cdest = *cdata;
+		addr[0x0555] = 0xAA;
+		addr[0x02AA] = 0x55;
+		addr[0x0555] = 0xA0;
 
-	    /* re-enable interrupts if necessary */
-	    if (flag)
-		enable_interrupts();
+		*cdest = *cdata;
 
-	    /* data polling for D7 */
-	    start = get_timer (0);
-	    while ((*cdest ^ *cdata) & 0x80)
-	    {
-		if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
-			return (1);
+		/* re-enable interrupts if necessary */
+		if (flag)
+			enable_interrupts();
+
+		/* data polling for D7 */
+		start = get_timer(0);
+		while ((*cdest ^ *cdata) & 0x80) {
+			if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
+				return 1;
 		}
-	    }
 
-	    cdata++ ;
-	    cdest++ ;
+		cdata++ ;
+		cdest++ ;
 	}
-	return (0);
+	return 0;
 }
-
-/*-----------------------------------------------------------------------
- */