ColdFire: Use CFI driver for M5272C3

Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>

3 files changed, 11 insertions, 383 deletions

diff --git a/board/freescale/m5272c3/Makefile b/board/freescale/m5272c3/Makefile
index cf07cf4..424ab1c 100644
--- a/board/freescale/m5272c3/Makefile
+++ b/board/freescale/m5272c3/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	= $(BOARD).o flash.o
+COBJS	= $(BOARD).o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
diff --git a/board/freescale/m5272c3/flash.c b/board/freescale/m5272c3/flash.c
deleted file mode 100644
index 586a2cf..0000000
--- a/board/freescale/m5272c3/flash.c
+++ /dev/null
@@ -1,378 +0,0 @@
-/*
- * (C) Copyright 2000-2003
- * 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>
-
-#define PHYS_FLASH_1 CONFIG_SYS_FLASH_BASE
-#define FLASH_BANK_SIZE 0x200000
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-void flash_print_info (flash_info_t * info)
-{
-	int i;
-
-	switch (info->flash_id & FLASH_VENDMASK) {
-	case (AMD_MANUFACT & FLASH_VENDMASK):
-		printf ("AMD: ");
-		break;
-	default:
-		printf ("Unknown Vendor ");
-		break;
-	}
-
-	switch (info->flash_id & FLASH_TYPEMASK) {
-	case (AMD_ID_PL160CB & FLASH_TYPEMASK):
-		printf ("AM29PL160CB (16Mbit)\n");
-		break;
-	default:
-		printf ("Unknown Chip Type\n");
-		goto Done;
-		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");
-
-      Done:
-	return;
-}
-
-
-unsigned long flash_init (void)
-{
-	int i, j;
-	ulong size = 0;
-
-	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
-		ulong flashbase = 0;
-
-		flash_info[i].flash_id =
-			(AMD_MANUFACT & FLASH_VENDMASK) |
-			(AMD_ID_PL160CB & FLASH_TYPEMASK);
-		flash_info[i].size = FLASH_BANK_SIZE;
-		flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT;
-		memset (flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT);
-		if (i == 0)
-			flashbase = PHYS_FLASH_1;
-		else
-			panic ("configured to many flash banks!\n");
-
-		for (j = 0; j < flash_info[i].sector_count; j++) {
-			if (j == 0) {
-				/* 1st is 16 KiB */
-				flash_info[i].start[j] = flashbase;
-			}
-			if ((j >= 1) && (j <= 2)) {
-				/* 2nd and 3rd are 8 KiB */
-				flash_info[i].start[j] =
-					flashbase + 0x4000 + 0x2000 * (j - 1);
-			}
-			if (j == 3) {
-				/* 4th is 224 KiB */
-				flash_info[i].start[j] = flashbase + 0x8000;
-			}
-			if ((j >= 4) && (j <= 10)) {
-				/* rest is 256 KiB */
-				flash_info[i].start[j] =
-					flashbase + 0x40000 + 0x40000 * (j -
-									 4);
-			}
-		}
-		size += flash_info[i].size;
-	}
-
-	flash_protect (FLAG_PROTECT_SET,
-		       CONFIG_SYS_FLASH_BASE,
-		       CONFIG_SYS_FLASH_BASE + 0x3ffff, &flash_info[0]);
-
-	return size;
-}
-
-
-#define CMD_READ_ARRAY		0x00F0
-#define CMD_UNLOCK1		0x00AA
-#define CMD_UNLOCK2		0x0055
-#define CMD_ERASE_SETUP		0x0080
-#define CMD_ERASE_CONFIRM	0x0030
-#define CMD_PROGRAM		0x00A0
-#define CMD_UNLOCK_BYPASS	0x0020
-
-#define MEM_FLASH_ADDR1		(*(volatile u16 *)(CONFIG_SYS_FLASH_BASE + (0x00000555<<1)))
-#define MEM_FLASH_ADDR2		(*(volatile u16 *)(CONFIG_SYS_FLASH_BASE + (0x000002AA<<1)))
-
-#define BIT_ERASE_DONE		0x0080
-#define BIT_RDY_MASK		0x0080
-#define BIT_PROGRAM_ERROR	0x0020
-#define BIT_TIMEOUT		0x80000000	/* our flag */
-
-#define READY 1
-#define ERR   2
-#define TMO   4
-
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
-	ulong result;
-	int iflag, cflag, prot, sect;
-	int rc = ERR_OK;
-	int chip1;
-
-	/* first look for protection bits */
-
-	if (info->flash_id == FLASH_UNKNOWN)
-		return ERR_UNKNOWN_FLASH_TYPE;
-
-	if ((s_first < 0) || (s_first > s_last)) {
-		return ERR_INVAL;
-	}
-
-	if ((info->flash_id & FLASH_VENDMASK) !=
-	    (AMD_MANUFACT & FLASH_VENDMASK)) {
-		return ERR_UNKNOWN_FLASH_VENDOR;
-	}
-
-	prot = 0;
-	for (sect = s_first; sect <= s_last; ++sect) {
-		if (info->protect[sect]) {
-			prot++;
-		}
-	}
-	if (prot)
-		return ERR_PROTECTED;
-
-	/*
-	 * Disable interrupts which might cause a timeout
-	 * here. Remember that our exception vectors are
-	 * at address 0 in the flash, and we don't want a
-	 * (ticker) exception to happen while the flash
-	 * chip is in programming mode.
-	 */
-
-	cflag = icache_status ();
-	icache_disable ();
-	iflag = disable_interrupts ();
-
-	printf ("\n");
-
-	/* Start erase on unprotected sectors */
-	for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
-		printf ("Erasing sector %2d ... ", sect);
-
-		/* arm simple, non interrupt dependent timer */
-		set_timer (0);
-
-		if (info->protect[sect] == 0) {	/* not protected */
-			volatile u16 *addr =
-				(volatile u16 *) (info->start[sect]);
-
-			MEM_FLASH_ADDR1 = CMD_UNLOCK1;
-			MEM_FLASH_ADDR2 = CMD_UNLOCK2;
-			MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
-
-			MEM_FLASH_ADDR1 = CMD_UNLOCK1;
-			MEM_FLASH_ADDR2 = CMD_UNLOCK2;
-			*addr = CMD_ERASE_CONFIRM;
-
-			/* wait until flash is ready */
-			chip1 = 0;
-
-			do {
-				result = *addr;
-
-				/* check timeout */
-				if (get_timer (0) > CONFIG_SYS_FLASH_ERASE_TOUT) {
-					MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
-					chip1 = TMO;
-					break;
-				}
-
-				if (!chip1
-				    && (result & 0xFFFF) & BIT_ERASE_DONE)
-					chip1 = READY;
-
-			} while (!chip1);
-
-			MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
-
-			if (chip1 == ERR) {
-				rc = ERR_PROG_ERROR;
-				goto outahere;
-			}
-			if (chip1 == TMO) {
-				rc = ERR_TIMOUT;
-				goto outahere;
-			}
-
-			printf ("ok.\n");
-		} else {	/* it was protected */
-
-			printf ("protected!\n");
-		}
-	}
-
-	if (ctrlc ())
-		printf ("User Interrupt!\n");
-
-      outahere:
-	/* allow flash to settle - wait 10 ms */
-	udelay (10000);
-
-	if (iflag)
-		enable_interrupts ();
-
-	if (cflag)
-		icache_enable ();
-
-	return rc;
-}
-
-static int write_word (flash_info_t * info, ulong dest, ulong data)
-{
-	volatile u16 *addr = (volatile u16 *) dest;
-	ulong result;
-	int rc = ERR_OK;
-	int cflag, iflag;
-	int chip1;
-
-	/*
-	 * Check if Flash is (sufficiently) erased
-	 */
-	result = *addr;
-	if ((result & data) != data)
-		return ERR_NOT_ERASED;
-
-
-	/*
-	 * Disable interrupts which might cause a timeout
-	 * here. Remember that our exception vectors are
-	 * at address 0 in the flash, and we don't want a
-	 * (ticker) exception to happen while the flash
-	 * chip is in programming mode.
-	 */
-
-	cflag = icache_status ();
-	icache_disable ();
-	iflag = disable_interrupts ();
-
-	MEM_FLASH_ADDR1 = CMD_UNLOCK1;
-	MEM_FLASH_ADDR2 = CMD_UNLOCK2;
-	MEM_FLASH_ADDR1 = CMD_PROGRAM;
-	*addr = data;
-
-	/* arm simple, non interrupt dependent timer */
-	set_timer (0);
-
-	/* wait until flash is ready */
-	chip1 = 0;
-	do {
-		result = *addr;
-
-		/* check timeout */
-		if (get_timer (0) > CONFIG_SYS_FLASH_ERASE_TOUT) {
-			chip1 = ERR | TMO;
-			break;
-		}
-		if (!chip1 && ((result & 0x80) == (data & 0x80)))
-			chip1 = READY;
-
-	} while (!chip1);
-
-	*addr = CMD_READ_ARRAY;
-
-	if (chip1 == ERR || *addr != data)
-		rc = ERR_PROG_ERROR;
-
-	if (iflag)
-		enable_interrupts ();
-
-	if (cflag)
-		icache_enable ();
-
-	return rc;
-}
-
-
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
-	ulong wp, data;
-	int rc;
-
-	if (addr & 1) {
-		printf ("unaligned destination not supported\n");
-		return ERR_ALIGN;
-	}
-
-#if 0
-	if (cnt & 1) {
-		printf ("odd transfer sizes not supported\n");
-		return ERR_ALIGN;
-	}
-#endif
-
-	wp = addr;
-
-	if (addr & 1) {
-		data = (*((volatile u8 *) addr) << 8) | *((volatile u8 *)
-							  src);
-		if ((rc = write_word (info, wp - 1, data)) != 0) {
-			return (rc);
-		}
-		src += 1;
-		wp += 1;
-		cnt -= 1;
-	}
-
-	while (cnt >= 2) {
-		data = *((volatile u16 *) src);
-		if ((rc = write_word (info, wp, data)) != 0) {
-			return (rc);
-		}
-		src += 2;
-		wp += 2;
-		cnt -= 2;
-	}
-
-	if (cnt == 1) {
-		data = (*((volatile u8 *) src) << 8) |
-			*((volatile u8 *) (wp + 1));
-		if ((rc = write_word (info, wp, data)) != 0) {
-			return (rc);
-		}
-		src += 1;
-		wp += 1;
-		cnt -= 1;
-	}
-
-	return ERR_OK;
-}
diff --git a/include/configs/M5272C3.h b/include/configs/M5272C3.h
index 779d373..fc73d64 100644
--- a/include/configs/M5272C3.h
+++ b/include/configs/M5272C3.h
@@ -194,12 +194,18 @@
  */
 #define CONFIG_SYS_BOOTMAPSZ		(CONFIG_SYS_SDRAM_BASE + (CONFIG_SYS_SDRAM_SIZE << 20))
 
-/*-----------------------------------------------------------------------
+/*
  * FLASH organization
  */
-#define CONFIG_SYS_MAX_FLASH_BANKS	1	/* max number of memory banks           */
-#define CONFIG_SYS_MAX_FLASH_SECT	11	/* max number of sectors on one chip    */
-#define CONFIG_SYS_FLASH_ERASE_TOUT	1000
+#define CONFIG_SYS_FLASH_CFI
+#ifdef CONFIG_SYS_FLASH_CFI
+#	define CONFIG_FLASH_CFI_DRIVER	1
+#	define CONFIG_SYS_FLASH_SIZE		0x800000	/* Max size that the board might have */
+#	define CONFIG_SYS_FLASH_CFI_WIDTH	FLASH_CFI_16BIT
+#	define CONFIG_SYS_MAX_FLASH_BANKS	1	/* max number of memory banks */
+#	define CONFIG_SYS_MAX_FLASH_SECT	137	/* max number of sectors on one chip */
+#	define CONFIG_SYS_FLASH_PROTECTION	/* "Real" (hardware) sectors protection */
+#endif
 
 /*-----------------------------------------------------------------------
  * Cache Configuration