* Patch by Robert Schwebel, 21 Jan 2003:

  - Add support for Innokom board
  - Don't complain if "install" fails
  - README cleanup (remove duplicated lines)
  - Update PXA header files

* Add documentation for existing POST code (doc/README.POST)

* Patch by Laudney Ren, 15 Jan 2003:
  Fix handling of redundand environment in "tools/envcrc.c"

* Patch by Detlev Zundel, 28 Feb 2003:
  Add bedbug support for 824x systems

* Add support for 16 MB flash configuration of TRAB board

* Patch by Erwin Rol, 27 Feb 2003:
  Add support for RTEMS

* Add image information to README

* Fix dual PCMCIA slot support (when running with just one
  slot populated)

* Add VFD type detection to trab board

* extend drivers/cs8900.c driver to synchronize  ethaddr  environment
  variable with value in the EEPROM

1 files changed, 377 insertions, 0 deletions

diff --git a/board/innokom/flash.c b/board/innokom/flash.c
new file mode 100644
index 0000000..b8e97e1
--- /dev/null
+++ b/board/innokom/flash.c
@@ -0,0 +1,377 @@
+/*
+ * (C) Copyright 2002
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.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>
+#include <asm/arch/pxa-regs.h>
+
+#define FLASH_BANK_SIZE 0x02000000
+#define MAIN_SECT_SIZE  0x40000         /* 2x16 = 256k per sector */
+
+flash_info_t    flash_info[CFG_MAX_FLASH_BANKS];
+
+
+/**
+ * flash_init: - initialize data structures for flash chips
+ *
+ * @return: size of the flash
+ */
+
+ulong flash_init(void)
+{
+	int i, j;
+	ulong size = 0;
+
+	for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+		ulong flashbase = 0;
+		flash_info[i].flash_id =
+	  		(INTEL_MANUFACT & FLASH_VENDMASK) |
+	  		(INTEL_ID_28F128J3 & FLASH_TYPEMASK);
+		flash_info[i].size = FLASH_BANK_SIZE;
+		flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
+		memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
+
+		switch (i) {
+			case 0:
+				flashbase = PHYS_FLASH_1;
+				break;
+			default:
+				panic("configured to many flash banks!\n");
+				break;
+		}
+		for (j = 0; j < flash_info[i].sector_count; j++) {
+			flash_info[i].start[j] = flashbase + j*MAIN_SECT_SIZE;
+		}
+		size += flash_info[i].size;
+	}
+
+	/* Protect monitor and environment sectors */
+	flash_protect(FLAG_PROTECT_SET,
+			CFG_FLASH_BASE,
+			CFG_FLASH_BASE + _armboot_end_data - _armboot_start,
+			&flash_info[0]);
+
+#ifdef CFG_ENV_IS_IN_FLASH
+	flash_protect(FLAG_PROTECT_SET,
+			CFG_ENV_ADDR,
+			CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
+			&flash_info[0]);
+#endif
+
+	return size;
+}
+
+
+/**
+ * flash_print_info: - print information about the flash situation
+ *
+ * @param info:
+ */
+
+void flash_print_info  (flash_info_t *info)
+{
+	int i, j;
+
+	for (j=0; j<CFG_MAX_FLASH_BANKS; j++) {
+
+		switch (info->flash_id & FLASH_VENDMASK) {
+
+			case (INTEL_MANUFACT & FLASH_VENDMASK):
+				printf("Intel: ");
+				break;
+			default:
+				printf("Unknown Vendor ");
+				break;
+		}
+
+		switch (info->flash_id & FLASH_TYPEMASK) {
+
+			case (INTEL_ID_28F128J3 & FLASH_TYPEMASK):
+				printf("28F128J3 (128Mbit)\n");
+				break;
+			default:
+				printf("Unknown Chip Type\n");
+				return;
+		}
+
+		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");
+		info++;
+	}
+}
+
+
+/**
+ * flash_erase: - erase flash sectors
+ *
+ */
+
+int flash_erase(flash_info_t *info, int s_first, int s_last)
+{
+	int flag, prot, sect;
+	int rc = ERR_OK;
+
+	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) != (INTEL_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.
+	 */
+
+	flag = 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 */
+			u32 * volatile addr = (u32 * volatile)(info->start[sect]);
+
+			/* erase sector:                                    */
+			/* The strata flashs are aligned side by side on    */
+			/* the data bus, so we have to write the commands   */
+			/* to both chips here:                              */
+
+			*addr = 0x00200020;	/* erase setup */
+			*addr = 0x00D000D0;	/* erase confirm */
+
+			while ((*addr & 0x00800080) != 0x00800080) {
+				if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) {
+					*addr = 0x00B000B0; /* suspend erase*/
+					*addr = 0x00FF00FF; /* read mode    */
+					rc = ERR_TIMOUT;
+					goto outahere;
+				}
+			}
+
+			*addr = 0x00500050; /* clear status register cmd.   */
+			*addr = 0x00FF00FF; /* resest to read mode          */
+
+		}
+
+		printf("ok.\n");
+	}
+
+	if (ctrlc()) printf("User Interrupt!\n");
+
+	outahere:
+
+	/* allow flash to settle - wait 10 ms */
+	udelay_masked(10000);
+
+	if (flag) enable_interrupts();
+
+	return rc;
+}
+
+
+/**
+ * write_word: - copy memory to flash
+ *
+ * @param info:
+ * @param dest:
+ * @param data:
+ * @return:
+ */
+
+static int write_word (flash_info_t *info, ulong dest, ushort data)
+{
+	ushort *addr = (ushort *)dest, val;
+	int rc = ERR_OK;
+	int flag;
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*addr & 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.
+	 */
+	flag = disable_interrupts();
+
+	/* clear status register command */
+	*addr = 0x50;
+
+	/* program set-up command */
+	*addr = 0x40;
+
+	/* latch address/data */
+	*addr = data;
+
+	/* arm simple, non interrupt dependent timer */
+	reset_timer_masked();
+
+	/* wait while polling the status register */
+	while(((val = *addr) & 0x80) != 0x80) {
+		if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) {
+			rc = ERR_TIMOUT;
+			*addr = 0xB0; /* suspend program command */
+			goto outahere;
+		}
+	}
+
+	if(val & 0x1A) {	/* check for error */
+		printf("\nFlash write error %02x at address %08lx\n",
+			(int)val, (unsigned long)dest);
+		if(val & (1<<3)) {
+			printf("Voltage range error.\n");
+			rc = ERR_PROG_ERROR;
+			goto outahere;
+		}
+		if(val & (1<<1)) {
+			printf("Device protect error.\n");
+			rc = ERR_PROTECTED;
+			goto outahere;
+		}
+		if(val & (1<<4)) {
+			printf("Programming error.\n");
+			rc = ERR_PROG_ERROR;
+			goto outahere;
+		}
+		rc = ERR_PROG_ERROR;
+		goto outahere;
+	}
+
+	outahere:
+
+	*addr = 0xFF; /* read array command */
+	if (flag) enable_interrupts();
+
+	return rc;
+}
+
+
+/**
+ * write_buf: - Copy memory to flash.
+ *
+ * @param info:
+ * @param src:	source of copy transaction
+ * @param addr:	where to copy to
+ * @param cnt: 	number of bytes to copy
+ *
+ * @return	error code
+ */
+
+int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+	ulong cp, wp;
+	ushort data;
+	int l;
+	int i, rc;
+
+	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_word(info, wp, data)) != 0) {
+			return (rc);
+		}
+		wp += 2;
+	}
+
+	/*
+	 * handle word aligned part
+	 */
+	while (cnt >= 2) {
+		/* data = *((vushort*)src); */
+		data = *((ushort*)src);
+		if ((rc = write_word(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_word(info, wp, data);
+}
+