+++ /dev/null
-/*
- * (C) Copyright 2000-2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
- * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
- *
- * 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/immap.h>
-
-#ifndef CFG_FLASH_CFI
-typedef unsigned char FLASH_PORT_WIDTH;
-typedef volatile unsigned char FLASH_PORT_WIDTHV;
-
-#define FPW FLASH_PORT_WIDTH
-#define FPWV FLASH_PORT_WIDTHV
-
-#define CFG_FLASH_CFI_WIDTH FLASH_CFI_8BIT
-#define CFG_FLASH_NONCFI_WIDTH FLASH_CFI_8BIT
-
-/* Intel-compatible flash commands */
-#define INTEL_PROGRAM 0x00100010
-#define INTEL_ERASE 0x00200020
-#define INTEL_WRSETUP 0x00400040
-#define INTEL_CLEAR 0x00500050
-#define INTEL_LOCKBIT 0x00600060
-#define INTEL_PROTECT 0x00010001
-#define INTEL_STATUS 0x00700070
-#define INTEL_READID 0x00900090
-#define INTEL_CFIQRY 0x00980098
-#define INTEL_SUSERASE 0x00B000B0
-#define INTEL_PROTPROG 0x00C000C0
-#define INTEL_CONFIRM 0x00D000D0
-#define INTEL_WRBLK 0x00e800e8
-#define INTEL_RESET 0x00FF00FF
-
-/* Intel-compatible flash status bits */
-#define INTEL_FINISHED 0x00800080
-#define INTEL_OK 0x00800080
-#define INTEL_ERASESUS 0x00600060
-#define INTEL_WSM_SUS (INTEL_FINISHED | INTEL_ERASESUS)
-
-/* 28F160C3B CFI Data offset - This could vary */
-#define INTEL_CFI_MFG 0x00 /* Manufacturer ID */
-#define INTEL_CFI_PART 0x01 /* Product ID */
-#define INTEL_CFI_LOCK 0x02 /* */
-#define INTEL_CFI_TWPRG 0x1F /* Typical Single Word Program Timeout 2^n us */
-#define INTEL_CFI_MBUFW 0x20 /* Typical Max Buffer Write Timeout 2^n us */
-#define INTEL_CFI_TERB 0x21 /* Typical Block Erase Timeout 2^n ms */
-#define INTEL_CFI_MWPRG 0x23 /* Maximum Word program timeout 2^n us */
-#define INTEL_CFI_MERB 0x25 /* Maximum Block Erase Timeout 2^n s */
-#define INTEL_CFI_SIZE 0x27 /* Device size 2^n bytes */
-#define INTEL_CFI_CAP 0x28
-#define INTEL_CFI_WRBUF 0x2A
-#define INTEL_CFI_BANK 0x2C /* Number of Bank */
-#define INTEL_CFI_BLK1A 0x2D /* Number of Blocks */
-#define INTEL_CFI_BLK1B 0x2E /* Number of Blocks */
-#define INTEL_CFI_SZ1A 0x2F /* Block Region Size */
-#define INTEL_CFI_SZ1B 0x30
-#define INTEL_CFI_BLK2A 0x31
-#define INTEL_CFI_BLK2B 0x32
-#define INTEL_CFI_SZ2A 0x33
-#define INTEL_CFI_SZ2B 0x34
-
-#define FLASH_CYCLE1 0x0555
-#define FLASH_CYCLE2 0x0aaa
-
-#define WR_BLOCK 0x20
-
-/* not in the flash.h yet */
-#define FLASH_28F64P30T 0x00B9 /* Intel 28F64P30T ( 64M) */
-#define FLASH_28F64P30B 0x00BA /* Intel 28F64P30B ( 64M) */
-#define FLASH_28F128P30T 0x00BB /* Intel 28F128P30T ( 128M = 8M x 16 ) */
-#define FLASH_28F128P30B 0x00BC /* Intel 28F128P30B ( 128M = 8M x 16 ) */
-#define FLASH_28F256P30T 0x00BD /* Intel 28F256P30T ( 256M = 16M x 16 ) */
-#define FLASH_28F256P30B 0x00BE /* Intel 28F256P30B ( 256M = 16M x 16 ) */
-
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
-#define STM_ID_M25P16 0x20152015
-#define FLASH_M25P16 0x0055
-#endif
-
-#define SYNC __asm__("nop")
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-
-ulong flash_get_size(FPWV * addr, flash_info_t * info);
-int flash_get_offsets(ulong base, flash_info_t * info);
-int flash_cmd_rd(volatile u16 * addr, int index);
-int write_data(flash_info_t * info, ulong dest, FPW data);
-int write_data_block(flash_info_t * info, ulong src, ulong dest);
-int write_word_atm(flash_info_t * info, volatile u8 * dest, u16 data);
-void inline spin_wheel(void);
-void flash_sync_real_protect(flash_info_t * info);
-uchar intel_sector_protected(flash_info_t * info, ushort sector);
-
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
-int write_ser_data(flash_info_t * info, ulong dest, uchar * data, ulong cnt);
-int serial_flash_read_status(int chipsel);
-static int ser_flash_cs = 0;
-#endif
-
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
-
-ulong flash_init(void)
-{
- int i;
- ulong size = 0;
- ulong fbase = 0;
-
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- dspi_init();
-#endif
-
- for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
- memset(&flash_info[i], 0, sizeof(flash_info_t));
-
- switch (i) {
- case 0:
- fbase = (ulong) CFG_FLASH0_BASE;
- break;
- case 1:
- fbase = (ulong) CFG_FLASH1_BASE;
- break;
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- case 2:
- fbase = (ulong) CFG_FLASH2_BASE;
- break;
-#endif
- }
-
- flash_get_size((FPWV *) fbase, &flash_info[i]);
- flash_get_offsets((ulong) fbase, &flash_info[i]);
- fbase += flash_info[i].size;
- size += flash_info[i].size;
-
- /* get the h/w and s/w protection status in sync */
- flash_sync_real_protect(&flash_info[i]);
- }
-
- /* Protect monitor and environment sectors */
- flash_protect(FLAG_PROTECT_SET,
- CFG_MONITOR_BASE,
- CFG_MONITOR_BASE + monitor_flash_len - 1, &flash_info[0]);
-
- return size;
-}
-
-int flash_get_offsets(ulong base, flash_info_t * info)
-{
- int i, j, k;
- int sectors, bs, banks;
-
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_ATM) {
- int sect[] = CFG_ATMEL_SECT;
- int sectsz[] = CFG_ATMEL_SECTSZ;
-
- info->start[0] = base;
- for (k = 0, i = 0; i < CFG_ATMEL_REGION; i++) {
- for (j = 0; j < sect[i]; j++, k++) {
- info->start[k + 1] = info->start[k] + sectsz[i];
- info->protect[k] = 0;
- }
- }
- }
-
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
- volatile u16 *addr16 = (volatile u16 *)base;
-
- *addr16 = (FPW) INTEL_RESET; /* restore read mode */
- *addr16 = (FPW) INTEL_READID;
-
- banks = addr16[INTEL_CFI_BANK] & 0xff;
-
- sectors = 0;
- info->start[0] = base;
-
- for (k = 0, i = 0; i < banks; i++) {
- /* Geometry y1 = y1 + 1, y2 = y2 + 1, CFI spec.
- * To be exact, Z = [0x2f 0x30] (LE) * 256 bytes * [0x2D 0x2E] block count
- * Z = [0x33 0x34] (LE) * 256 bytes * [0x31 0x32] block count
- */
- bs = ((((addr16[INTEL_CFI_SZ1B + (i * 4)] & 0xff) << 8)
- | (addr16[INTEL_CFI_SZ1A + (i * 4)] & 0xff)) *
- 0x100);
- sectors =
- (addr16[INTEL_CFI_BLK1A + (i * 4)] & 0xff) + 1;
-
- for (j = 0; j < sectors; j++, k++) {
- info->start[k + 1] = info->start[k] + bs;
- }
- }
-
- *addr16 = (FPW) INTEL_RESET; /* restore read mode */
- }
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_STM) {
- info->start[0] = CFG_FLASH2_BASE;
- for (k = 0, i = 0; i < CFG_STM_SECT; i++, k++) {
- info->start[k + 1] = info->start[k] + CFG_STM_SECTSZ;
- info->protect[k] = 0;
- }
- }
-#endif
-
- return ERR_OK;
-}
-
-void flash_print_info(flash_info_t * info)
-{
- int i;
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case FLASH_MAN_INTEL:
- printf("INTEL ");
- break;
- case FLASH_MAN_ATM:
- printf("ATMEL ");
- break;
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- case FLASH_MAN_STM:
- printf("ST ");
- break;
-#endif
- default:
- printf("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AT040:
- printf("AT49BV040A\n");
- break;
- case FLASH_28F128J3A:
- printf("28F128J3A\n");
- break;
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- case FLASH_M25P16:
- printf("M25P16\n");
- break;
-#endif
- default:
- printf("Unknown Chip Type\n");
- return;
- }
-
- if (info->size > 0x100000) {
- int remainder;
-
- printf(" Size: %ld", info->size >> 20);
-
- remainder = (info->size % 0x100000);
- if (remainder) {
- remainder >>= 10;
- remainder = (int)((float)
- (((float)remainder / (float)1024) *
- 10000));
- printf(".%d ", remainder);
- }
-
- printf("MB in %d Sectors\n", info->sector_count);
- } else
- printf(" Size: %ld KB in %d Sectors\n",
- info->size >> 10, 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");
-}
-
-/*
- * The following code cannot be run from FLASH!
- */
-ulong flash_get_size(FPWV * addr, flash_info_t * info)
-{
- volatile u16 *addr16 = (volatile u16 *)addr;
- int intel = 0, banks = 0;
- u16 value;
- int i;
-
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- if ((ulong) addr == CFG_FLASH2_BASE) {
- int manufactId = 0;
- int deviceId = 0;
-
- ser_flash_cs = 1;
-
- dspi_tx(ser_flash_cs, 0x80, SER_RDID);
- dspi_tx(ser_flash_cs, 0x80, 0);
- dspi_tx(ser_flash_cs, 0x80, 0);
- dspi_tx(ser_flash_cs, 0x80, 0);
-
- dspi_rx();
- manufactId = dspi_rx();
- deviceId = dspi_rx() << 8;
- deviceId |= dspi_rx();
-
- dspi_tx(ser_flash_cs, 0x00, 0);
- dspi_rx();
-
- switch (manufactId) {
- case (u8) STM_MANUFACT:
- info->flash_id = FLASH_MAN_STM;
- break;
- }
-
- switch (deviceId) {
- case (u16) STM_ID_M25P16:
- info->flash_id += FLASH_M25P16;
- break;
- }
-
- info->sector_count = CFG_STM_SECT;
- info->size = CFG_STM_SECT * CFG_STM_SECTSZ;
-
- return (info->size);
- }
-#endif
-
- addr[FLASH_CYCLE1] = (FPWV) 0x00AA00AA; /* for Atmel, Intel ignores this */
- addr[FLASH_CYCLE2] = (FPWV) 0x00550055; /* for Atmel, Intel ignores this */
- addr[FLASH_CYCLE1] = (FPWV) 0x00900090; /* selects Intel or Atmel */
-
- switch (addr[0] & 0xff) {
- case (u8) ATM_MANUFACT:
- info->flash_id = FLASH_MAN_ATM;
- value = addr[1];
- break;
- case (u8) INTEL_MANUFACT:
- /* Terminate Atmel ID read */
- addr[0] = (FPWV) 0x00F000F0;
- /* Write auto select command: read Manufacturer ID */
- /* Write auto select command sequence and test FLASH answer */
- *addr16 = (FPW) INTEL_RESET; /* restore read mode */
- *addr16 = (FPW) INTEL_READID;
-
- info->flash_id = FLASH_MAN_INTEL;
- value = (addr16[INTEL_CFI_MFG] << 8);
- value |= addr16[INTEL_CFI_PART] & 0xff;
- intel = 1;
- break;
- default:
- printf("Unknown Flash\n");
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
-
- *addr = (FPW) 0x00F000F0;
- *addr = (FPW) INTEL_RESET; /* restore read mode */
- return (0); /* no or unknown flash */
- }
-
- switch (value) {
- case (u8) ATM_ID_LV040:
- info->flash_id += FLASH_AT040;
- break;
- case (u16) INTEL_ID_28F128J3:
- info->flash_id += FLASH_28F128J3A;
- break;
- case (u16) INTEL_ID_28F64P30T:
- info->flash_id += FLASH_28F64P30T;
- break;
- case (u16) INTEL_ID_28F64P30B:
- info->flash_id += FLASH_28F64P30B;
- break;
- case (u16) INTEL_ID_28F128P30T:
- info->flash_id += FLASH_28F128P30T;
- break;
- case (u16) INTEL_ID_28F128P30B:
- info->flash_id += FLASH_28F128P30B;
- break;
- case (u16) INTEL_ID_28F256P30T:
- info->flash_id += FLASH_28F256P30T;
- break;
- case (u16) INTEL_ID_28F256P30B:
- info->flash_id += FLASH_28F256P30B;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- break;
- }
-
- if (intel) {
- /* Intel spec. under CFI section */
- u32 sz;
- int sectors, bs;
-
- banks = addr16[INTEL_CFI_BANK] & 0xff;
-
- sectors = sz = 0;
- for (i = 0; i < banks; i++) {
- /* Geometry y1 = y1 + 1, y2 = y2 + 1, CFI spec.
- * To be exact, Z = [0x2f 0x30] (LE) * 256 bytes * [0x2D 0x2E] block count
- * Z = [0x33 0x34] (LE) * 256 bytes * [0x31 0x32] block count
- */
- bs = ((((addr16[INTEL_CFI_SZ1B + (i * 4)] & 0xff) << 8)
- | (addr16[INTEL_CFI_SZ1A + (i * 4)] & 0xff)) *
- 0x100);
- sectors +=
- (addr16[INTEL_CFI_BLK1A + (i * 4)] & 0xff) + 1;
- sz += (bs * sectors);
- }
-
- info->sector_count = sectors;
- info->size = sz;
- *addr = (FPW) INTEL_RESET; /* restore read mode */
- } else {
- int sect[] = CFG_ATMEL_SECT;
- int sectsz[] = CFG_ATMEL_SECTSZ;
-
- info->sector_count = 0;
- info->size = 0;
- for (i = 0; i < CFG_ATMEL_REGION; i++) {
- info->sector_count += sect[i];
- info->size += sect[i] * sectsz[i];
- }
-
- /* reset ID mode */
- addr[0] = (FPWV) 0x00F000F0;
- }
-
- if (info->sector_count > CFG_MAX_FLASH_SECT) {
- printf("** ERROR: sector count %d > max (%d) **\n",
- info->sector_count, CFG_MAX_FLASH_SECT);
- info->sector_count = CFG_MAX_FLASH_SECT;
- }
-
- return (info->size);
-}
-
-int flash_cmd_rd(volatile u16 * addr, int index)
-{
- return (int)addr[index];
-}
-
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
-int serial_flash_read_status(int chipsel)
-{
- u16 status;
-
- dspi_tx(chipsel, 0x80, SER_RDSR);
- dspi_rx();
-
- dspi_tx(chipsel, 0x00, 0);
- status = dspi_rx();
-
- return status;
-}
-#endif
-
-/*
- * This function gets the u-boot flash sector protection status
- * (flash_info_t.protect[]) in sync with the sector protection
- * status stored in hardware.
- */
-void flash_sync_real_protect(flash_info_t * info)
-{
- int i;
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_28F160C3B:
- case FLASH_28F160C3T:
- case FLASH_28F320C3B:
- case FLASH_28F320C3T:
- case FLASH_28F640C3B:
- case FLASH_28F640C3T:
- for (i = 0; i < info->sector_count; ++i) {
- info->protect[i] = intel_sector_protected(info, i);
- }
- break;
- default:
- /* no h/w protect support */
- break;
- }
-}
-
-/*
- * checks if "sector" in bank "info" is protected. Should work on intel
- * strata flash chips 28FxxxJ3x in 8-bit mode.
- * Returns 1 if sector is protected (or timed-out while trying to read
- * protection status), 0 if it is not.
- */
-uchar intel_sector_protected(flash_info_t * info, ushort sector)
-{
- FPWV *addr;
- FPWV *lock_conf_addr;
- ulong start;
- unsigned char ret;
-
- /*
- * first, wait for the WSM to be finished. The rationale for
- * waiting for the WSM to become idle for at most
- * CFG_FLASH_ERASE_TOUT is as follows. The WSM can be busy
- * because of: (1) erase, (2) program or (3) lock bit
- * configuration. So we just wait for the longest timeout of
- * the (1)-(3), i.e. the erase timeout.
- */
-
- /* wait at least 35ns (W12) before issuing Read Status Register */
- /*udelay(1); */
- addr = (FPWV *) info->start[sector];
- *addr = (FPW) INTEL_STATUS;
-
- start = get_timer(0);
- while ((*addr & (FPW) INTEL_FINISHED) != (FPW) INTEL_FINISHED) {
- if (get_timer(start) > CFG_FLASH_UNLOCK_TOUT) {
- *addr = (FPW) INTEL_RESET; /* restore read mode */
- printf("WSM busy too long, can't get prot status\n");
- return 1;
- }
- }
-
- /* issue the Read Identifier Codes command */
- *addr = (FPW) INTEL_READID;
-
- /* Intel example code uses offset of 4 for 8-bit flash */
- lock_conf_addr = (FPWV *) info->start[sector];
- ret = (lock_conf_addr[INTEL_CFI_LOCK] & (FPW) INTEL_PROTECT) ? 1 : 0;
-
- /* put flash back in read mode */
- *addr = (FPW) INTEL_RESET;
-
- return ret;
-}
-
-int flash_erase(flash_info_t * info, int s_first, int s_last)
-{
- int flag, prot, sect;
- ulong type, start, last;
- int rcode = 0, flashtype = 0;
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- int count;
- u16 status;
-#endif
- 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);
-
- switch (type) {
- case FLASH_MAN_ATM:
- flashtype = 1;
- break;
- case FLASH_MAN_INTEL:
- flashtype = 2;
- break;
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- case FLASH_MAN_STM:
- flashtype = 3;
- break;
-#endif
- default:
- type = (info->flash_id & FLASH_VENDMASK);
- 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;
-
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- /* Perform bulk erase */
- if (flashtype == 3) {
- if ((s_last - s_first) == (CFG_STM_SECT - 1)) {
- if (prot == 0) {
- dspi_tx(ser_flash_cs, 0x00, SER_WREN);
- dspi_rx();
-
- status = serial_flash_read_status(ser_flash_cs);
- if (((status & 0x9C) != 0)
- && ((status & 0x02) != 0x02)) {
- printf("Can't erase flash\n");
- return 1;
- }
-
- dspi_tx(ser_flash_cs, 0x00, SER_BULK_ERASE);
- dspi_rx();
-
- count = 0;
- start = get_timer(0);
- do {
- status =
- serial_flash_read_status
- (ser_flash_cs);
-
- if (count++ > 0x10000) {
- spin_wheel();
- count = 0;
- }
-
- if (get_timer(start) >
- CFG_FLASH_ERASE_TOUT) {
- printf("Timeout\n");
- return 1;
- }
- } while (status & 0x01);
-
- printf("\b. done\n");
- return 0;
- } else if (prot == CFG_STM_SECT) {
- return 1;
- }
- }
- }
-#endif
- /* 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]);
- int min = 0;
-
- printf(".");
-
- /* arm simple, non interrupt dependent timer */
- start = get_timer(0);
-
- switch (flashtype) {
- case 1:
- {
- FPWV *base; /* first address in bank */
- FPWV *atmeladdr;
-
- flag = disable_interrupts();
-
- atmeladdr = (FPWV *) addr; /* concatenate to 8 bit */
- base = (FPWV *) (CFG_ATMEL_BASE); /* First sector */
-
- base[FLASH_CYCLE1] = (u8) 0x00AA00AA; /* unlock */
- base[FLASH_CYCLE2] = (u8) 0x00550055; /* unlock */
- base[FLASH_CYCLE1] = (u8) 0x00800080; /* erase mode */
- base[FLASH_CYCLE1] = (u8) 0x00AA00AA; /* unlock */
- base[FLASH_CYCLE2] = (u8) 0x00550055; /* unlock */
- *atmeladdr = (u8) 0x00300030; /* erase sector */
-
- if (flag)
- enable_interrupts();
-
- while ((*atmeladdr & (u8) 0x00800080) !=
- (u8) 0x00800080) {
- if (get_timer(start) >
- CFG_FLASH_ERASE_TOUT) {
- printf("Timeout\n");
- *atmeladdr = (u8) 0x00F000F0; /* reset to read mode */
-
- rcode = 1;
- break;
- }
- }
-
- *atmeladdr = (u8) 0x00F000F0; /* reset to read mode */
- break;
- }
-
- case 2:
- {
- *addr = (FPW) INTEL_READID;
- min = addr[INTEL_CFI_TERB] & 0xff;
- min = 1 << min; /* ms */
- min = (min / info->sector_count) * 1000;
-
- /* start erase block */
- *addr = (FPW) INTEL_CLEAR; /* clear status register */
- *addr = (FPW) INTEL_ERASE; /* erase setup */
- *addr = (FPW) INTEL_CONFIRM; /* erase confirm */
-
- while ((*addr & (FPW) INTEL_FINISHED) !=
- (FPW) INTEL_FINISHED) {
-
- if (get_timer(start) >
- CFG_FLASH_ERASE_TOUT) {
- printf("Timeout\n");
- *addr = (FPW) INTEL_SUSERASE; /* suspend erase */
- *addr = (FPW) INTEL_RESET; /* reset to read mode */
-
- rcode = 1;
- break;
- }
- }
-
- *addr = (FPW) INTEL_RESET; /* resest to read mode */
- break;
- }
-
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- case 3:
- {
- u8 sec = ((ulong) addr >> 16) & 0xFF;
-
- dspi_tx(ser_flash_cs, 0x00, SER_WREN);
- dspi_rx();
- status =
- serial_flash_read_status
- (ser_flash_cs);
- if (((status & 0x9C) != 0)
- && ((status & 0x02) != 0x02)) {
- printf("Error Programming\n");
- return 1;
- }
-
- dspi_tx(ser_flash_cs, 0x80,
- SER_SECT_ERASE);
- dspi_tx(ser_flash_cs, 0x80, sec);
- dspi_tx(ser_flash_cs, 0x80, 0);
- dspi_tx(ser_flash_cs, 0x00, 0);
-
- dspi_rx();
- dspi_rx();
- dspi_rx();
- dspi_rx();
-
- do {
- status =
- serial_flash_read_status
- (ser_flash_cs);
-
- if (get_timer(start) >
- CFG_FLASH_ERASE_TOUT) {
- printf("Timeout\n");
- return 1;
- }
- } while (status & 0x01);
-
- break;
- }
-#endif
- } /* switch (flashtype) */
- }
- }
- printf(" done\n");
-
- return rcode;
-}
-
-int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- int count;
-
- if (info->flash_id == FLASH_UNKNOWN)
- return 4;
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case FLASH_MAN_ATM:
- {
- u16 data = 0;
- int bytes; /* number of bytes to program in current word */
- int left; /* number of bytes left to program */
- int i, res;
-
- for (left = cnt, res = 0;
- left > 0 && res == 0;
- addr += sizeof(data), left -=
- sizeof(data) - bytes) {
-
- bytes = addr & (sizeof(data) - 1);
- addr &= ~(sizeof(data) - 1);
-
- /* combine source and destination data so can program
- * an entire word of 16 or 32 bits
- */
- for (i = 0; i < sizeof(data); i++) {
- data <<= 8;
- if (i < bytes || i - bytes >= left)
- data += *((uchar *) addr + i);
- else
- data += *src++;
- }
-
- data = (data >> 8) | (data << 8);
- res = write_word_atm(info, (FPWV *) addr, data);
- }
- return res;
- } /* case FLASH_MAN_ATM */
-
- case FLASH_MAN_INTEL:
- {
- ulong cp, wp;
- u16 data;
- int i, l, rc, port_width;
-
- /* get lower word aligned address */
- wp = addr;
- port_width = sizeof(FPW);
-
- /*
- * 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;
- }
-
- if (cnt > WR_BLOCK) {
- /*
- * handle word aligned part
- */
- count = 0;
- while (cnt >= WR_BLOCK) {
-
- if ((rc =
- write_data_block(info,
- (ulong) src,
- wp)) != 0)
- return (rc);
-
- wp += WR_BLOCK;
- src += WR_BLOCK;
- cnt -= WR_BLOCK;
-
- if (count++ > 0x800) {
- spin_wheel();
- count = 0;
- }
- }
- }
-
- /* handle word aligned part */
- if (cnt < WR_BLOCK) {
- /*
- * handle word aligned part
- */
- count = 0;
- while (cnt >= port_width) {
- data = 0;
- for (i = 0; i < port_width; ++i)
- data = (data << 8) | *src++;
-
- if ((rc =
- write_data(info,
- (ulong) ((FPWV *) wp),
- (FPW) (data))) != 0)
- return (rc);
-
- wp += port_width;
- cnt -= port_width;
- if (count++ > 0x800) {
- spin_wheel();
- count = 0;
- }
- }
- }
-
- if (cnt == 0)
- return ERR_OK;
-
- /*
- * 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, (ulong) ((FPWV *) wp),
- (FPW) data);
-
- } /* case FLASH_MAN_INTEL */
-
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
- case FLASH_MAN_STM:
- {
- ulong wp;
- u8 *data = (u8 *) src;
- int left; /* number of bytes left to program */
-
- wp = addr;
-
- /* page align, each page is 256 bytes */
- if ((wp % 0x100) != 0) {
- left = (0x100 - (wp & 0xFF));
- write_ser_data(info, wp, data, left);
- cnt -= left;
- wp += left;
- data += left;
- }
-
- /* page program - 256 bytes at a time */
- if (cnt > 255) {
- count = 0;
- while (cnt >= 0x100) {
- write_ser_data(info, wp, data, 0x100);
- cnt -= 0x100;
- wp += 0x100;
- data += 0x100;
-
- if (count++ > 0x400) {
- spin_wheel();
- count = 0;
- }
- }
- }
-
- /* remainint bytes */
- if (cnt && (cnt < 256)) {
- write_ser_data(info, wp, data, cnt);
- wp += cnt;
- data += cnt;
- cnt -= cnt;
- }
-
- printf("\b.");
- }
-#endif
- } /* switch */
-
- return ERR_OK;
-}
-
-/*-----------------------------------------------------------------------
- * Write a word or halfword to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-int write_data_block(flash_info_t * info, ulong src, ulong dest)
-{
- FPWV *srcaddr = (FPWV *) src;
- FPWV *dstaddr = (FPWV *) dest;
- ulong start;
- int flag, i;
-
- /* Check if Flash is (sufficiently) erased */
- for (i = 0; i < WR_BLOCK; i++)
- if ((*dstaddr++ & 0xff) != 0xff) {
- printf("not erased at %08lx (%lx)\n",
- (ulong) dstaddr, *dstaddr);
- return (2);
- }
-
- dstaddr = (FPWV *) dest;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *dstaddr = (FPW) INTEL_WRBLK; /* write block setup */
-
- if (flag)
- enable_interrupts();
-
- /* arm simple, non interrupt dependent timer */
- start = get_timer(0);
-
- /* wait while polling the status register */
- while ((*dstaddr & (FPW) INTEL_FINISHED) != (FPW) INTEL_OK) {
- if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
- *dstaddr = (FPW) INTEL_RESET; /* restore read mode */
- return (1);
- }
- }
-
- *dstaddr = (FPW) WR_BLOCK - 1; /* write 32 to buffer */
- for (i = 0; i < WR_BLOCK; i++)
- *dstaddr++ = *srcaddr++;
-
- dstaddr -= 1;
- *dstaddr = (FPW) INTEL_CONFIRM; /* write 32 to buffer */
-
- /* arm simple, non interrupt dependent timer */
- start = get_timer(0);
-
- /* wait while polling the status register */
- while ((*dstaddr & (FPW) INTEL_FINISHED) != (FPW) INTEL_OK) {
- if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
- *dstaddr = (FPW) INTEL_RESET; /* restore read mode */
- return (1);
- }
- }
-
- *dstaddr = (FPW) INTEL_RESET; /* restore read mode */
-
- return (0);
-}
-
-/*-----------------------------------------------------------------------
- * Write a word or halfword to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-int write_data(flash_info_t * info, ulong dest, FPW data)
-{
- FPWV *addr = (FPWV *) dest;
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*addr & data) != data) {
- printf("not erased at %08lx (%lx)\n", (ulong) addr,
- (ulong) * addr);
- return (2);
- }
-
- /* Disable interrupts which might cause a timeout here */
- flag = (int)disable_interrupts();
-
- *addr = (FPW) INTEL_CLEAR;
- *addr = (FPW) INTEL_RESET;
-
- *addr = (FPW) INTEL_WRSETUP; /* write setup */
- *addr = data;
-
- if (flag)
- enable_interrupts();
-
- /* arm simple, non interrupt dependent timer */
- start = get_timer(0);
-
- /* wait while polling the status register */
- while ((*addr & (FPW) INTEL_OK) != (FPW) INTEL_OK) {
- if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
- *addr = (FPW) INTEL_SUSERASE; /* suspend mode */
- *addr = (FPW) INTEL_CLEAR; /* clear status */
- *addr = (FPW) INTEL_RESET; /* reset */
- return (1);
- }
- }
-
- *addr = (FPW) INTEL_CLEAR; /* clear status */
- *addr = (FPW) INTEL_RESET; /* restore read mode */
-
- return (0);
-}
-
-#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI)
-int write_ser_data(flash_info_t * info, ulong dest, uchar * data, ulong cnt)
-{
- ulong start;
- int status, i;
- u8 flashdata;
-
- /* Check if Flash is (sufficiently) erased */
- dspi_tx(ser_flash_cs, 0x80, SER_READ);
- dspi_tx(ser_flash_cs, 0x80, (dest >> 16) & 0xFF);
- dspi_tx(ser_flash_cs, 0x80, (dest >> 8) & 0xFF);
- dspi_tx(ser_flash_cs, 0x80, dest & 0xFF);
- dspi_rx();
- dspi_rx();
- dspi_rx();
- dspi_rx();
- dspi_tx(ser_flash_cs, 0x80, 0);
- flashdata = dspi_rx();
- dspi_tx(ser_flash_cs, 0x00, 0);
- dspi_rx();
-
- if ((flashdata & *data) != *data) {
- printf("not erased at %08lx (%lx)\n", (ulong) dest,
- (ulong) flashdata);
- return (2);
- }
-
- dspi_tx(ser_flash_cs, 0x00, SER_WREN);
- dspi_rx();
-
- status = serial_flash_read_status(ser_flash_cs);
- if (((status & 0x9C) != 0) && ((status & 0x02) != 0x02)) {
- printf("Error Programming\n");
- return 1;
- }
-
- start = get_timer(0);
-
- dspi_tx(ser_flash_cs, 0x80, SER_PAGE_PROG);
- dspi_tx(ser_flash_cs, 0x80, ((dest & 0xFF0000) >> 16));
- dspi_tx(ser_flash_cs, 0x80, ((dest & 0xFF00) >> 8));
- dspi_tx(ser_flash_cs, 0x80, (dest & 0xFF));
- dspi_rx();
- dspi_rx();
- dspi_rx();
- dspi_rx();
-
- for (i = 0; i < (cnt - 1); i++) {
- dspi_tx(ser_flash_cs, 0x80, *data);
- dspi_rx();
- data++;
- }
-
- dspi_tx(ser_flash_cs, 0x00, *data);
- dspi_rx();
-
- do {
- status = serial_flash_read_status(ser_flash_cs);
-
- if (get_timer(start) > CFG_FLASH_ERASE_TOUT) {
- printf("Timeout\n");
- return 1;
- }
- } while (status & 0x01);
-
- return (0);
-}
-#endif
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash for ATMEL FLASH
- * A word is 16 bits, whichever the bus width of the flash bank
- * (not an individual chip) is.
- *
- * returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-int write_word_atm(flash_info_t * info, volatile u8 * dest, u16 data)
-{
- ulong start;
- int flag, i;
- int res = 0; /* result, assume success */
- FPWV *base; /* first address in flash bank */
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((volatile u16 *)dest) & data) != data) {
- return (2);
- }
-
- base = (FPWV *) (CFG_ATMEL_BASE);
-
- for (i = 0; i < sizeof(u16); i++) {
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- base[FLASH_CYCLE1] = (u8) 0x00AA00AA; /* unlock */
- base[FLASH_CYCLE2] = (u8) 0x00550055; /* unlock */
- base[FLASH_CYCLE1] = (u8) 0x00A000A0; /* selects program mode */
-
- *dest = data; /* start programming the data */
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- start = get_timer(0);
-
- /* data polling for D7 */
- while (res == 0
- && (*dest & (u8) 0x00800080) !=
- (data & (u8) 0x00800080)) {
- if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
- *dest = (u8) 0x00F000F0; /* reset bank */
- res = 1;
- }
- }
-
- *dest++ = (u8) 0x00F000F0; /* reset bank */
- data >>= 8;
- }
-
- return (res);
-}
-
-void inline spin_wheel(void)
-{
- static int p = 0;
- static char w[] = "\\/-";
-
- printf("\010%c", w[p]);
- (++p == 3) ? (p = 0) : 0;
-}
-
-#ifdef CFG_FLASH_PROTECTION
-/*-----------------------------------------------------------------------
- */
-int flash_real_protect(flash_info_t * info, long sector, int prot)
-{
- int rcode = 0; /* assume success */
- FPWV *addr; /* address of sector */
- FPW value;
-
- addr = (FPWV *) (info->start[sector]);
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_28F160C3B:
- case FLASH_28F160C3T:
- case FLASH_28F320C3B:
- case FLASH_28F320C3T:
- case FLASH_28F640C3B:
- case FLASH_28F640C3T:
- *addr = (FPW) INTEL_RESET; /* make sure in read mode */
- *addr = (FPW) INTEL_LOCKBIT; /* lock command setup */
-
- if (prot)
- *addr = (FPW) INTEL_PROTECT; /* lock sector */
- else
- *addr = (FPW) INTEL_CONFIRM; /* unlock sector */
-
- /* now see if it really is locked/unlocked as requested */
- *addr = (FPW) INTEL_READID;
-
- /* read sector protection at sector address, (A7 .. A0) = 0x02.
- * D0 = 1 for each device if protected.
- * If at least one device is protected the sector is marked
- * protected, but return failure. Mixed protected and
- * unprotected devices within a sector should never happen.
- */
- value = addr[2] & (FPW) INTEL_PROTECT;
- if (value == 0)
- info->protect[sector] = 0;
- else if (value == (FPW) INTEL_PROTECT)
- info->protect[sector] = 1;
- else {
- /* error, mixed protected and unprotected */
- rcode = 1;
- info->protect[sector] = 1;
- }
- if (info->protect[sector] != prot)
- rcode = 1; /* failed to protect/unprotect as requested */
-
- /* reload all protection bits from hardware for now */
- flash_sync_real_protect(info);
- break;
-
- default:
- /* no hardware protect that we support */
- info->protect[sector] = prot;
- break;
- }
-
- return rcode;
-}
-#endif
-#endif
projects / platform / kernel / u-boot.git / commitdiff