Patchwork [U-Boot,04/24] IDS8247: remove redundant flash.c file

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Submitter Wolfgang Denk
Date Nov. 25, 2010, 4 p.m.
Message ID <1290700844-31427-5-git-send-email-wd@denx.de>
Download mbox | patch
Permalink /patch/73076/
State Accepted
Commit 739192b4252352235b499388ba9974b695b0a9b1
Headers show

Comments

Wolfgang Denk - Nov. 25, 2010, 4 p.m.
The IDS8247 board is configured to use the CFI flash driver, so drop
the now redundant custom flash.c file.

Signed-off-by: Wolfgang Denk <wd@denx.de>
---
 board/ids8247/Makefile |    2 +-
 board/ids8247/flash.c  |  484 ------------------------------------------------
 2 files changed, 1 insertions(+), 485 deletions(-)
 delete mode 100644 board/ids8247/flash.c

Patch

diff --git a/board/ids8247/Makefile b/board/ids8247/Makefile
index 032e0a7..2b702ce 100644
--- a/board/ids8247/Makefile
+++ b/board/ids8247/Makefile
@@ -28,7 +28,7 @@  include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).o
 
-COBJS	= $(BOARD).o flash.o
+COBJS	= $(BOARD).o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
diff --git a/board/ids8247/flash.c b/board/ids8247/flash.c
deleted file mode 100644
index 5107553..0000000
--- a/board/ids8247/flash.c
+++ /dev/null
@@ -1,484 +0,0 @@ 
-/*
- * (C) Copyright 2005
- * Heiko Schocher, DENX Software Engineering, <hs@denx.de>
- *
- * (C) Copyright 2001
- * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
- *
- * (C) Copyright 2001-2005
- * 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
- */
-
-#undef DEBUG
-
-#include <common.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];	/* info for FLASH chips    */
-
-#if defined(CONFIG_ENV_IS_IN_FLASH)
-# ifndef  CONFIG_ENV_ADDR
-#  define CONFIG_ENV_ADDR	(CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
-# endif
-# ifndef  CONFIG_ENV_SIZE
-#  define CONFIG_ENV_SIZE	CONFIG_ENV_SECT_SIZE
-# endif
-# ifndef  CONFIG_ENV_SECT_SIZE
-#  define CONFIG_ENV_SECT_SIZE  CONFIG_ENV_SIZE
-# endif
-#endif
-
-/*-----------------------------------------------------------------------
- * Protection Flags:
- */
-#define FLAG_PROTECT_SET	0x01
-#define FLAG_PROTECT_CLEAR	0x02
-
-/* Board support for 1 or 2 flash devices */
-#undef FLASH_PORT_WIDTH32
-#undef FLASH_PORT_WIDTH16
-#define FLASH_PORT_WIDTH8
-
-#ifdef FLASH_PORT_WIDTH16
-#define FLASH_PORT_WIDTH	ushort
-#define FLASH_PORT_WIDTHV	vu_short
-#elif FLASH_PORT_WIDTH32
-#define FLASH_PORT_WIDTH	ulong
-#define FLASH_PORT_WIDTHV	vu_long
-#else /* FLASH_PORT_WIDTH8 */
-#define FLASH_PORT_WIDTH	uchar
-#define FLASH_PORT_WIDTHV	vu_char
-#endif
-
-#define FPW			FLASH_PORT_WIDTH
-#define FPWV			FLASH_PORT_WIDTHV
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size (FPWV * addr, flash_info_t * info);
-static int write_data (flash_info_t * info, ulong dest, FPW data);
-static void flash_get_offsets (ulong base, flash_info_t * info);
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init (void)
-{
-	unsigned long size_b0;
-	int i;
-	volatile immap_t * immr = (immap_t *)CONFIG_SYS_IMMR;
-	volatile memctl8260_t *memctl = &immr->im_memctl;
-
-	/* Init: no FLASHes known */
-	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
-		flash_info[i].flash_id = FLASH_UNKNOWN;
-	}
-
-	/* Static FLASH Bank configuration here - FIXME XXX */
-	size_b0 = flash_get_size ((FPW *) CONFIG_SYS_FLASH0_BASE, &flash_info[0]);
-
-	if (flash_info[0].flash_id == FLASH_UNKNOWN) {
-		printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
-			size_b0, size_b0 << 20);
-	}
-
-	memctl->memc_or0 = 0xff800060;
-	memctl->memc_br0 = 0xff800801;
-
-	flash_get_offsets (0xff800000, &flash_info[0]);
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
-	/* monitor protection ON by default */
-	(void) flash_protect (FLAG_PROTECT_SET,
-				CONFIG_SYS_MONITOR_BASE,
-				CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
-				&flash_info[0]);
-#endif
-
-#ifdef	CONFIG_ENV_IS_IN_FLASH
-	/* ENV protection ON by default */
-	flash_protect (FLAG_PROTECT_SET,
-			CONFIG_ENV_ADDR,
-			CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
-			&flash_info[0]);
-#endif
-
-	flash_info[0].size = size_b0;
-
-	return (size_b0);
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_get_offsets (ulong base, flash_info_t * info)
-{
-	int i;
-
-	if (info->flash_id == FLASH_UNKNOWN) {
-		return;
-	}
-
-	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
-		for (i = 0; i < info->sector_count; i++) {
-			info->start[i] = base + (i * 0x00020000);
-		}
-	}
-}
-
-/*-----------------------------------------------------------------------
- */
-void flash_print_info (flash_info_t * info)
-{
-	int i;
-
-	if (info->flash_id == FLASH_UNKNOWN) {
-		printf ("missing or unknown FLASH type\n");
-		return;
-	}
-
-	switch (info->flash_id & FLASH_VENDMASK) {
-	case FLASH_MAN_INTEL:
-		printf ("INTEL ");
-		break;
-	default:
-		printf ("Unknown Vendor ");
-		break;
-	}
-
-	switch (info->flash_id & FLASH_TYPEMASK) {
-	case FLASH_28F320J3A:
-		printf ("28F320J3A\n");
-		break;
-	case FLASH_28F640J3A:
-		printf ("28F640J3A\n");
-		break;
-	case FLASH_28F128J3A:
-		printf ("28F128J3A\n");
-		break;
-	default:
-		printf ("Unknown Chip Type\n");
-		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");
-	return;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-
-/*-----------------------------------------------------------------------
- */
-
-/*
- * The following code cannot be run from FLASH!
- */
-
-static ulong flash_get_size (FPWV * addr, flash_info_t * info)
-{
-	FPW value;
-
-	addr[0] = (FPW) 0x00900090;
-
-	value = addr[0];
-
-	debug ("Manuf. ID @ 0x%08lx: 0x%08lx\n", (ulong)addr, value);
-
-	switch (value) {
-	case (FPW) INTEL_MANUFACT:
-		info->flash_id = FLASH_MAN_INTEL;
-		break;
-	default:
-		info->flash_id = FLASH_UNKNOWN;
-		info->sector_count = 0;
-		info->size = 0;
-		addr[0] = (FPW) 0x00FF00FF;	/* restore read mode */
-		return (0);			/* no or unknown flash  */
-	}
-
-#ifdef FLASH_PORT_WIDTH8
-	value = addr[2];			/* device ID        */
-#else
-	value = addr[1];			/* device ID        */
-#endif
-
-	debug ("Device ID @ 0x%08lx: 0x%08lx\n", (ulong)(&addr[1]), value);
-
-	switch (value) {
-	case (FPW) INTEL_ID_28F320J3A:
-		info->flash_id += FLASH_28F320J3A;
-		info->sector_count = 32;
-		info->size = 0x00400000;
-		break;				/* => 4 MB     */
-
-	case (FPW) INTEL_ID_28F640J3A:
-		info->flash_id += FLASH_28F640J3A;
-		info->sector_count = 64;
-		info->size = 0x00800000;
-		break;				/* => 8 MB     */
-
-	case (FPW) INTEL_ID_28F128J3A:
-		info->flash_id += FLASH_28F128J3A;
-		info->sector_count = 128;
-		info->size = 0x01000000;
-		break;				/* => 16 MB     */
-
-	default:
-		info->flash_id = FLASH_UNKNOWN;
-		break;
-	}
-
-	if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) {
-		printf ("** ERROR: sector count %d > max (%d) **\n",
-				info->sector_count, CONFIG_SYS_MAX_FLASH_SECT);
-		info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
-	}
-
-	addr[0] = (FPW) 0x00FF00FF;	/* restore read mode */
-
-	return (info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
-	int flag, prot, sect;
-	ulong type, start, now, last;
-	int rcode = 0;
-
-	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;
-	}
-
-	type = (info->flash_id & FLASH_VENDMASK);
-	if ((type != FLASH_MAN_INTEL)) {
-		printf ("Can't erase unknown flash type %08lx - aborted\n",
-			info->flash_id);
-		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");
-	}
-
-	start = get_timer (0);
-	last = start;
-	/* Start erase on unprotected sectors */
-	for (sect = s_first; sect <= s_last; sect++) {
-		if (info->protect[sect] == 0) {	/* not protected */
-			FPWV *addr = (FPWV *) (info->start[sect]);
-			FPW status;
-
-			/* Disable interrupts which might cause a timeout here */
-			flag = disable_interrupts ();
-
-			*addr = (FPW) 0x00500050;	/* clear status register */
-			*addr = (FPW) 0x00200020;	/* erase setup */
-			*addr = (FPW) 0x00D000D0;	/* erase confirm */
-
-			/* re-enable interrupts if necessary */
-			if (flag)
-				enable_interrupts ();
-
-			/* wait at least 80us - let's wait 1 ms */
-			udelay (1000);
-
-			while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
-			    if ((now = get_timer (start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
-				printf ("Timeout\n");
-				*addr = (FPW) 0x00B000B0;	/* suspend erase     */
-				*addr = (FPW) 0x00FF00FF;	/* reset to read mode */
-				rcode = 1;
-				break;
-			    }
-
-			    /* show that we're waiting */
-			    if ((now - last) > 1000) {	/* every second */
-				putc ('.');
-				last = now;
-			    }
-			}
-
-			*addr = (FPW) 0x00FF00FF;	/* reset to read mode */
-		}
-	}
-	printf (" done\n");
-	return rcode;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 4 - Flash not identified
- */
-
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
-	ulong cp, wp;
-	FPW data;
-
-	int i, l, rc, port_width;
-
-	if (info->flash_id == FLASH_UNKNOWN) {
-		return 4;
-	}
-/* get lower word aligned address */
-#ifdef FLASH_PORT_WIDTH16
-	wp = (addr & ~1);
-	port_width = 2;
-#elif defined(FLASH_PORT_WIDTH32)
-	wp = (addr & ~3);
-	port_width = 4;
-#else
-	wp = addr;
-	port_width = 1;
-#endif
-
-	/*
-	 * 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 < port_width && cnt > 0; ++i) {
-			data = (data << 8) | *src++;
-			--cnt;
-			++cp;
-		}
-		for (; cnt == 0 && i < port_width; ++i, ++cp) {
-			data = (data << 8) | (*(uchar *) cp);
-		}
-
-		if ((rc = write_data (info, wp, data)) != 0) {
-			return (rc);
-		}
-		wp += port_width;
-	}
-
-	/*
-	 * handle word aligned part
-	 */
-	while (cnt >= port_width) {
-		data = 0;
-		for (i = 0; i < port_width; ++i) {
-			data = (data << 8) | *src++;
-		}
-		if ((rc = write_data (info, wp, data)) != 0) {
-			return (rc);
-		}
-		wp += port_width;
-		cnt -= port_width;
-	}
-
-	if (cnt == 0) {
-		return (0);
-	}
-
-	/*
-	 * handle unaligned tail bytes
-	 */
-	data = 0;
-	for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) {
-		data = (data << 8) | *src++;
-		--cnt;
-	}
-	for (; i < port_width; ++i, ++cp) {
-		data = (data << 8) | (*(uchar *) cp);
-	}
-
-	return (write_data (info, wp, data));
-}
-
-/*-----------------------------------------------------------------------
- * Write a word or halfword to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_data (flash_info_t * info, ulong dest, FPW data)
-{
-	FPWV *addr = (FPWV *) dest;
-	ulong status;
-	ulong start;
-	int flag;
-
-	/* Check if Flash is (sufficiently) erased */
-	if ((*addr & data) != data) {
-		printf ("not erased at %08lx (%x)\n", (ulong) addr, *addr);
-		return (2);
-	}
-	/* Disable interrupts which might cause a timeout here */
-	flag = disable_interrupts ();
-
-	*addr = (FPW) 0x00400040;	/* write setup */
-	*addr = data;
-
-	/* re-enable interrupts if necessary */
-	if (flag)
-		enable_interrupts ();
-
-	start = get_timer (0);
-
-	while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
-		if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
-			*addr = (FPW) 0x00FF00FF;	/* restore read mode */
-			return (1);
-		}
-	}
-
-	*addr = (FPW) 0x00FF00FF;	/* restore read mode */
-
-	return (0);
-}