SMDK2410: use the CFI driver (and remove the old one)

Signed-off-by: David Müller <d.mueller@elsoft.ch>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

3 files changed, 13 insertions, 434 deletions

diff --git a/board/samsung/smdk2410/Makefile b/board/samsung/smdk2410/Makefile
index bda8898..0afe1e2 100644
--- a/board/samsung/smdk2410/Makefile
+++ b/board/samsung/smdk2410/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).o
 
-COBJS	:= smdk2410.o flash.o
+COBJS	:= smdk2410.o
 SOBJS	:= lowlevel_init.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/board/samsung/smdk2410/flash.c b/board/samsung/smdk2410/flash.c
deleted file mode 100644
index 132d752..0000000
--- a/board/samsung/smdk2410/flash.c
+++ /dev/null
@@ -1,433 +0,0 @@
-/*
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.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>
-
-ulong myflush (void);
-
-
-#define FLASH_BANK_SIZE	PHYS_FLASH_SIZE
-#define MAIN_SECT_SIZE  0x10000	/* 64 KB */
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-
-#define CMD_READ_ARRAY		0x000000F0
-#define CMD_UNLOCK1		0x000000AA
-#define CMD_UNLOCK2		0x00000055
-#define CMD_ERASE_SETUP		0x00000080
-#define CMD_ERASE_CONFIRM	0x00000030
-#define CMD_PROGRAM		0x000000A0
-#define CMD_UNLOCK_BYPASS	0x00000020
-
-#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		0x00000080
-#define BIT_RDY_MASK		0x00000080
-#define BIT_PROGRAM_ERROR	0x00000020
-#define BIT_TIMEOUT		0x80000000	/* our flag */
-
-#define READY 1
-#define ERR   2
-#define TMO   4
-
-/*-----------------------------------------------------------------------
- */
-
-ulong 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 =
-#if defined(CONFIG_AMD_LV400)
-			(AMD_MANUFACT & FLASH_VENDMASK) |
-			(AMD_ID_LV400B & FLASH_TYPEMASK);
-#elif defined(CONFIG_AMD_LV800)
-			(AMD_MANUFACT & FLASH_VENDMASK) |
-			(AMD_ID_LV800B & FLASH_TYPEMASK);
-#else
-#error "Unknown flash configured"
-#endif
-			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 too many flash banks!\n");
-		for (j = 0; j < flash_info[i].sector_count; j++) {
-			if (j <= 3) {
-				/* 1st one is 16 KB */
-				if (j == 0) {
-					flash_info[i].start[j] =
-						flashbase + 0;
-				}
-
-				/* 2nd and 3rd are both 8 KB */
-				if ((j == 1) || (j == 2)) {
-					flash_info[i].start[j] =
-						flashbase + 0x4000 + (j -
-								      1) *
-						0x2000;
-				}
-
-				/* 4th 32 KB */
-				if (j == 3) {
-					flash_info[i].start[j] =
-						flashbase + 0x8000;
-				}
-			} else {
-				flash_info[i].start[j] =
-					flashbase + (j - 3) * MAIN_SECT_SIZE;
-			}
-		}
-		size += flash_info[i].size;
-	}
-
-	flash_protect (FLAG_PROTECT_SET,
-		       CONFIG_SYS_FLASH_BASE,
-		       CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1,
-		       &flash_info[0]);
-
-	flash_protect (FLAG_PROTECT_SET,
-		       CONFIG_ENV_ADDR,
-		       CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]);
-
-	return size;
-}
-
-/*-----------------------------------------------------------------------
- */
-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_LV400B & FLASH_TYPEMASK):
-		printf ("1x Amd29LV400BB (4Mbit)\n");
-		break;
-	case (AMD_ID_LV800B & FLASH_TYPEMASK):
-		printf ("1x Amd29LV800BB (8Mbit)\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:;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
-	ushort result;
-	int iflag, cflag, prot, sect;
-	int rc = ERR_OK;
-	int chip;
-
-	/* 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 ();
-
-	/* 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 */
-		reset_timer_masked ();
-
-		if (info->protect[sect] == 0) {	/* not protected */
-			vu_short *addr = (vu_short *) (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 */
-			chip = 0;
-
-			do {
-				result = *addr;
-
-				/* check timeout */
-				if (get_timer_masked () >
-				    CONFIG_SYS_FLASH_ERASE_TOUT) {
-					MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
-					chip = TMO;
-					break;
-				}
-
-				if (!chip
-				    && (result & 0xFFFF) & BIT_ERASE_DONE)
-					chip = READY;
-
-				if (!chip
-				    && (result & 0xFFFF) & BIT_PROGRAM_ERROR)
-					chip = ERR;
-
-			} while (!chip);
-
-			MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
-
-			if (chip == ERR) {
-				rc = ERR_PROG_ERROR;
-				goto outahere;
-			}
-			if (chip == 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_masked (10000);
-
-	if (iflag)
-		enable_interrupts ();
-
-	if (cflag)
-		icache_enable ();
-
-	return rc;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash
- */
-
-static int write_hword (flash_info_t * info, ulong dest, ushort data)
-{
-	vu_short *addr = (vu_short *) dest;
-	ushort result;
-	int rc = ERR_OK;
-	int cflag, iflag;
-	int chip;
-
-	/*
-	 * 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_UNLOCK_BYPASS;
-	*addr = CMD_PROGRAM;
-	*addr = data;
-
-	/* arm simple, non interrupt dependent timer */
-	reset_timer_masked ();
-
-	/* wait until flash is ready */
-	chip = 0;
-	do {
-		result = *addr;
-
-		/* check timeout */
-		if (get_timer_masked () > CONFIG_SYS_FLASH_ERASE_TOUT) {
-			chip = ERR | TMO;
-			break;
-		}
-		if (!chip && ((result & 0x80) == (data & 0x80)))
-			chip = READY;
-
-		if (!chip && ((result & 0xFFFF) & BIT_PROGRAM_ERROR)) {
-			result = *addr;
-
-			if ((result & 0x80) == (data & 0x80))
-				chip = READY;
-			else
-				chip = ERR;
-		}
-
-	} while (!chip);
-
-	*addr = CMD_READ_ARRAY;
-
-	if (chip == ERR || *addr != data)
-		rc = ERR_PROG_ERROR;
-
-	if (iflag)
-		enable_interrupts ();
-
-	if (cflag)
-		icache_enable ();
-
-	return rc;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash.
- */
-
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
-	ulong cp, wp;
-	int l;
-	int i, rc;
-	ushort data;
-
-	wp = (addr & ~1);	/* 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 << 8);
-		}
-		for (; i < 2 && cnt > 0; ++i) {
-			data = (data >> 8) | (*src++ << 8);
-			--cnt;
-			++cp;
-		}
-		for (; cnt == 0 && i < 2; ++i, ++cp) {
-			data = (data >> 8) | (*(uchar *) cp << 8);
-		}
-
-		if ((rc = write_hword (info, wp, data)) != 0) {
-			return (rc);
-		}
-		wp += 2;
-	}
-
-	/*
-	 * handle word aligned part
-	 */
-	while (cnt >= 2) {
-		data = *((vu_short *) src);
-		if ((rc = write_hword (info, wp, data)) != 0) {
-			return (rc);
-		}
-		src += 2;
-		wp += 2;
-		cnt -= 2;
-	}
-
-	if (cnt == 0) {
-		return ERR_OK;
-	}
-
-	/*
-	 * handle unaligned tail bytes
-	 */
-	data = 0;
-	for (i = 0, cp = wp; i < 2 && cnt > 0; ++i, ++cp) {
-		data = (data >> 8) | (*src++ << 8);
-		--cnt;
-	}
-	for (; i < 2; ++i, ++cp) {
-		data = (data >> 8) | (*(uchar *) cp << 8);
-	}
-
-	return write_hword (info, wp, data);
-}
diff --git a/board/samsung/smdk2410/smdk2410.c b/board/samsung/smdk2410/smdk2410.c
index 76a24bb..1abc4ba 100644
--- a/board/samsung/smdk2410/smdk2410.c
+++ b/board/samsung/smdk2410/smdk2410.c
@@ -134,3 +134,15 @@ int board_eth_init(bd_t *bis)
 	return rc;
 }
 #endif
+
+/*
+ * Hardcoded flash setup:
+ * Flash 0 is a non-CFI AMD AM29LV800BB flash.
+ */
+ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
+{
+	info->portwidth = FLASH_CFI_16BIT;
+	info->chipwidth = FLASH_CFI_BY16;
+	info->interface = FLASH_CFI_X16;
+	return 1;
+}