918 lines
19 KiB
C
918 lines
19 KiB
C
/*
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* MOUSSE/MPC8240 Board definitions.
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* Flash Routines for MOUSSE onboard AMD29LV106DB devices
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*
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* (C) Copyright 2000
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* Marius Groeger <mgroeger@sysgo.de>
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 1999, by Curt McDowell, 08-06-99, Broadcom Corp.
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* (C) Copyright 2001, James Dougherty, 07/18/01, Broadcom Corp.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <mpc8xx.h>
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#include <malloc.h>
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#include "mousse.h"
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#include "flash.h"
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int flashLibDebug = 0;
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int flashLibInited = 0;
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#define OK 0
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#define ERROR -1
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#define STATUS int
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#define PRINTF if (flashLibDebug) printf
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#if 0
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#define PRIVATE static
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#else
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#define PRIVATE
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#endif
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flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
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#define SLEEP_DELAY 166
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#define FLASH_SECTOR_SIZE (64*1024)
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/***********************************************************************
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*
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* Virtual Flash Devices on Mousse board
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*
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* These must be kept in sync with the definitions in flashLib.h.
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*
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***********************************************************************/
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PRIVATE flash_dev_t flashDev[] = {
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/* Bank 0 sector SA0 (16 kB) */
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{ "SA0",FLASH0_BANK, FLASH0_SEG0_START, 1, 14,
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FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
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},
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/* Bank 0 sector SA1 (8 kB) */
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{ "SA1", FLASH0_BANK, FLASH0_SEG0_START + 0x4000, 1, 13,
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FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
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},
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/* Bank 0 sector SA2 (8 kB) */
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{ "SA2", FLASH0_BANK, FLASH0_SEG0_START + 0x6000, 1, 13,
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FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
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},
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/* Bank 0 sector SA3 is occluded by Mousse I/O devices */
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/* Bank 0 sectors SA4-SA18, after Mousse devices up to PLCC (960 kB) */
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{ "KERNEL", FLASH0_BANK, FLASH0_SEG1_START, 15, 16,
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FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
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},
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/* Bank 0 sectors SA19-SA26, jumper can occlude this by PLCC (512 kB) */
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/* This is where the Kahlua boot vector and boot ROM code resides. */
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{ "BOOT",FLASH0_BANK, FLASH0_SEG2_START, 8, 16,
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FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
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},
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/* Bank 0 sectors SA27-SA34 (512 kB) */
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{ "RAMDISK",FLASH0_BANK, FLASH0_SEG3_START, 8, 16,
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FLASH0_VENDOR_ID, FLASH0_DEVICE_ID
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},
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};
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int flashDevCount = (sizeof (flashDev) / sizeof (flashDev[0]));
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#define DEV(no) (&flashDev[no])
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#define DEV_NO(dev) ((dev) - flashDev)
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/***********************************************************************
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*
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* Private Flash Routines
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*
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***********************************************************************/
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/*
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* The convention is:
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*
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* "addr" is always the PROM raw address, which is the address of an
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* 8-bit quantity for flash 0 and 16-bit quantity for flash 1.
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*
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* "pos" is always a logical byte position from the PROM beginning.
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*/
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#define FLASH0_ADDR(dev, addr) \
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((unsigned char *) ((dev)->base + (addr)))
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#define FLASH0_WRITE(dev, addr, value) \
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(*FLASH0_ADDR(dev, addr) = (value))
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#define FLASH0_READ(dev, addr) \
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(*FLASH0_ADDR(dev, addr))
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PRIVATE int flashCheck (flash_dev_t * dev)
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{
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if (!flashLibInited) {
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printf ("flashCheck: flashLib not initialized\n");
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return ERROR;
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}
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if (dev < &flashDev[0] || dev >= &flashDev[flashDevCount]) {
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printf ("flashCheck: Bad dev parameter\n");
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return ERROR;
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}
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if (!dev->found) {
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printf ("flashCheck: Device %d not available\n", DEV_NO (dev));
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return ERROR;
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}
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return OK;
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}
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PRIVATE void flashReset (flash_dev_t * dev)
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{
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PRINTF ("flashReset: dev=%d\n", DEV_NO (dev));
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if (dev->bank == FLASH0_BANK) {
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FLASH0_WRITE (dev, 0x555, 0xaa);
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FLASH0_WRITE (dev, 0xaaa, 0x55);
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FLASH0_WRITE (dev, 0x555, 0xf0);
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}
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udelay (SLEEP_DELAY);
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PRINTF ("flashReset: done\n");
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}
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PRIVATE int flashProbe (flash_dev_t * dev)
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{
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int rv, deviceID, vendorID;
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PRINTF ("flashProbe: dev=%d\n", DEV_NO (dev));
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if (dev->bank != FLASH0_BANK) {
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rv = ERROR;
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goto DONE;
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}
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FLASH0_WRITE (dev, 0xaaa, 0xaa);
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FLASH0_WRITE (dev, 0x555, 0x55);
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FLASH0_WRITE (dev, 0xaaa, 0x90);
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udelay (SLEEP_DELAY);
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vendorID = FLASH0_READ (dev, 0);
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deviceID = FLASH0_READ (dev, 2);
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FLASH0_WRITE (dev, 0, 0xf0);
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PRINTF ("flashProbe: vendor=0x%x device=0x%x\n", vendorID, deviceID);
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if (vendorID == dev->vendorID && deviceID == dev->deviceID)
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rv = OK;
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else
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rv = ERROR;
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DONE:
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PRINTF ("flashProbe: rv=%d\n", rv);
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return rv;
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}
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PRIVATE int flashWait (flash_dev_t * dev, int addr, int expect, int erase)
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{
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int rv = ERROR;
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int i, data;
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int polls;
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#if 0
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PRINTF ("flashWait: dev=%d addr=0x%x expect=0x%x erase=%d\n",
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DEV_NO (dev), addr, expect, erase);
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#endif
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if (dev->bank != FLASH0_BANK) {
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rv = ERROR;
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goto done;
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}
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if (erase)
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polls = FLASH_ERASE_SECTOR_TIMEOUT; /* Ticks */
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else
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polls = FLASH_PROGRAM_POLLS; /* Loops */
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for (i = 0; i < polls; i++) {
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if (erase)
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udelay (SLEEP_DELAY);
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data = FLASH0_READ (dev, addr);
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if (((data ^ expect) & 0x80) == 0) {
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rv = OK;
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goto done;
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}
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if (data & 0x20) {
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/*
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* If the 0x20 bit has come on, it could actually be because
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* the operation succeeded, so check the done bit again.
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*/
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data = FLASH0_READ (dev, addr);
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if (((data ^ expect) & 0x80) == 0) {
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rv = OK;
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goto done;
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}
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printf ("flashWait: Program error (dev: %d, addr: 0x%x)\n",
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DEV_NO (dev), addr);
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flashReset (dev);
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rv = ERROR;
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goto done;
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}
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}
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printf ("flashWait: Timeout %s (dev: %d, addr: 0x%x)\n",
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erase ? "erasing sector" : "programming byte",
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DEV_NO (dev), addr);
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done:
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#if 0
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PRINTF ("flashWait: rv=%d\n", rv);
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#endif
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return rv;
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}
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/***********************************************************************
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*
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* Public Flash Routines
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*
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***********************************************************************/
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STATUS flashLibInit (void)
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{
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int i;
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PRINTF ("flashLibInit: devices=%d\n", flashDevCount);
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for (i = 0; i < flashDevCount; i++) {
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flash_dev_t *dev = &flashDev[i];
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/*
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* For bank 1, probe both without and with byte swappage,
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* so that this module works on both old and new Mousse boards.
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*/
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flashReset (dev);
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if (flashProbe (dev) != ERROR)
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dev->found = 1;
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flashReset (dev);
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if (flashProbe (dev) != ERROR)
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dev->found = 1;
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dev->swap = 0;
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if (dev->found) {
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PRINTF ("\n FLASH %s[%d]: iobase=0x%x - %d sectors %d KB",
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flashDev[i].name, i, flashDev[i].base,
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flashDev[i].sectors,
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(flashDev[i].sectors * FLASH_SECTOR_SIZE) / 1024);
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}
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}
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flashLibInited = 1;
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PRINTF ("flashLibInit: done\n");
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return OK;
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}
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STATUS flashEraseSector (flash_dev_t * dev, int sector)
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{
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int pos, addr;
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PRINTF ("flashErasesector: dev=%d sector=%d\n", DEV_NO (dev), sector);
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if (flashCheck (dev) == ERROR)
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return ERROR;
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if (sector < 0 || sector >= dev->sectors) {
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printf ("flashEraseSector: Sector out of range (dev: %d, sector: %d)\n", DEV_NO (dev), sector);
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return ERROR;
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}
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pos = FLASH_SECTOR_POS (dev, sector);
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if (dev->bank != FLASH0_BANK) {
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return ERROR;
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}
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addr = pos;
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FLASH0_WRITE (dev, 0xaaa, 0xaa);
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FLASH0_WRITE (dev, 0x555, 0x55);
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FLASH0_WRITE (dev, 0xaaa, 0x80);
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FLASH0_WRITE (dev, 0xaaa, 0xaa);
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FLASH0_WRITE (dev, 0x555, 0x55);
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FLASH0_WRITE (dev, addr, 0x30);
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return flashWait (dev, addr, 0xff, 1);
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}
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/*
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* Note: it takes about as long to flash all sectors together with Chip
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* Erase as it does to flash them one at a time (about 30 seconds for 2
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* MB). Also since we want to be able to treat subsets of sectors as if
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* they were complete devices, we don't use Chip Erase.
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*/
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STATUS flashErase (flash_dev_t * dev)
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{
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int sector;
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PRINTF ("flashErase: dev=%d sectors=%d\n", DEV_NO (dev), dev->sectors);
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if (flashCheck (dev) == ERROR)
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return ERROR;
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for (sector = 0; sector < dev->sectors; sector++) {
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if (flashEraseSector (dev, sector) == ERROR)
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return ERROR;
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}
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return OK;
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}
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/*
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* Read and write bytes
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*/
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STATUS flashRead (flash_dev_t * dev, int pos, char *buf, int len)
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{
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int addr, words;
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PRINTF ("flashRead: dev=%d pos=0x%x buf=0x%x len=0x%x\n",
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DEV_NO (dev), pos, (int) buf, len);
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if (flashCheck (dev) == ERROR)
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return ERROR;
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if (pos < 0 || len < 0 || pos + len > FLASH_MAX_POS (dev)) {
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printf ("flashRead: Position out of range "
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"(dev: %d, pos: 0x%x, len: 0x%x)\n",
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DEV_NO (dev), pos, len);
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return ERROR;
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}
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if (len == 0)
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return OK;
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if (dev->bank == FLASH0_BANK) {
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addr = pos;
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words = len;
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PRINTF ("flashRead: memcpy(0x%x, 0x%x, 0x%x)\n",
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(int) buf, (int) FLASH0_ADDR (dev, pos), len);
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memcpy (buf, FLASH0_ADDR (dev, addr), words);
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}
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PRINTF ("flashRead: rv=OK\n");
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return OK;
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}
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STATUS flashWrite (flash_dev_t * dev, int pos, char *buf, int len)
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{
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int addr, words;
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PRINTF ("flashWrite: dev=%d pos=0x%x buf=0x%x len=0x%x\n",
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DEV_NO (dev), pos, (int) buf, len);
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if (flashCheck (dev) == ERROR)
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return ERROR;
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if (pos < 0 || len < 0 || pos + len > FLASH_MAX_POS (dev)) {
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printf ("flashWrite: Position out of range "
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"(dev: %d, pos: 0x%x, len: 0x%x)\n",
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DEV_NO (dev), pos, len);
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return ERROR;
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}
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if (len == 0)
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return OK;
|
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|
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if (dev->bank == FLASH0_BANK) {
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unsigned char tmp;
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|
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addr = pos;
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words = len;
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while (words--) {
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tmp = *buf;
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if (~FLASH0_READ (dev, addr) & tmp) {
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printf ("flashWrite: Attempt to program 0 to 1 "
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"(dev: %d, addr: 0x%x, data: 0x%x)\n",
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DEV_NO (dev), addr, tmp);
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return ERROR;
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}
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FLASH0_WRITE (dev, 0xaaa, 0xaa);
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FLASH0_WRITE (dev, 0x555, 0x55);
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FLASH0_WRITE (dev, 0xaaa, 0xa0);
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FLASH0_WRITE (dev, addr, tmp);
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if (flashWait (dev, addr, tmp, 0) < 0)
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return ERROR;
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buf++;
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addr++;
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}
|
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}
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PRINTF ("flashWrite: rv=OK\n");
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|
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return OK;
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}
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|
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/*
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* flashWritable returns true if a range contains all F's.
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*/
|
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|
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STATUS flashWritable (flash_dev_t * dev, int pos, int len)
|
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{
|
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int addr, words;
|
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int rv = ERROR;
|
|
|
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PRINTF ("flashWritable: dev=%d pos=0x%x len=0x%x\n",
|
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DEV_NO (dev), pos, len);
|
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|
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if (flashCheck (dev) == ERROR)
|
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goto done;
|
|
|
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if (pos < 0 || len < 0 || pos + len > FLASH_MAX_POS (dev)) {
|
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printf ("flashWritable: Position out of range "
|
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"(dev: %d, pos: 0x%x, len: 0x%x)\n",
|
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DEV_NO (dev), pos, len);
|
|
goto done;
|
|
}
|
|
|
|
if (len == 0) {
|
|
rv = 1;
|
|
goto done;
|
|
}
|
|
|
|
if (dev->bank == FLASH0_BANK) {
|
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addr = pos;
|
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words = len;
|
|
|
|
while (words--) {
|
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if (FLASH0_READ (dev, addr) != 0xff) {
|
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rv = 0;
|
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goto done;
|
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}
|
|
addr++;
|
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}
|
|
}
|
|
|
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rv = 1;
|
|
|
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done:
|
|
PRINTF ("flashWrite: rv=%d\n", rv);
|
|
return rv;
|
|
}
|
|
|
|
|
|
/*
|
|
* NOTE: the below code cannot run from FLASH!!!
|
|
*/
|
|
/***********************************************************************
|
|
*
|
|
* Flash Diagnostics
|
|
*
|
|
***********************************************************************/
|
|
|
|
STATUS flashDiag (flash_dev_t * dev)
|
|
{
|
|
unsigned int *buf = 0;
|
|
int i, len, sector;
|
|
int rv = ERROR;
|
|
|
|
if (flashCheck (dev) == ERROR)
|
|
return ERROR;
|
|
|
|
printf ("flashDiag: Testing device %d, "
|
|
"base: 0x%x, %d sectors @ %d kB = %d kB\n",
|
|
DEV_NO (dev), dev->base,
|
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dev->sectors,
|
|
1 << (dev->lgSectorSize - 10),
|
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dev->sectors << (dev->lgSectorSize - 10));
|
|
|
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len = 1 << dev->lgSectorSize;
|
|
|
|
printf ("flashDiag: Erasing\n");
|
|
|
|
if (flashErase (dev) == ERROR) {
|
|
printf ("flashDiag: Erase failed\n");
|
|
goto done;
|
|
}
|
|
printf ("%d bytes requested ...\n", len);
|
|
buf = malloc (len);
|
|
printf ("allocated %d bytes ...\n", len);
|
|
if (buf == 0) {
|
|
printf ("flashDiag: Out of memory\n");
|
|
goto done;
|
|
}
|
|
|
|
/*
|
|
* Write unique counting pattern to each sector
|
|
*/
|
|
|
|
for (sector = 0; sector < dev->sectors; sector++) {
|
|
printf ("flashDiag: Write sector %d\n", sector);
|
|
|
|
for (i = 0; i < len / 4; i++)
|
|
buf[i] = sector << 24 | i;
|
|
|
|
if (flashWrite (dev,
|
|
sector << dev->lgSectorSize,
|
|
(char *) buf, len) == ERROR) {
|
|
printf ("flashDiag: Write failed (dev: %d, sector: %d)\n",
|
|
DEV_NO (dev), sector);
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Verify
|
|
*/
|
|
|
|
for (sector = 0; sector < dev->sectors; sector++) {
|
|
printf ("flashDiag: Verify sector %d\n", sector);
|
|
|
|
if (flashRead (dev,
|
|
sector << dev->lgSectorSize,
|
|
(char *) buf, len) == ERROR) {
|
|
printf ("flashDiag: Read failed (dev: %d, sector: %d)\n",
|
|
DEV_NO (dev), sector);
|
|
goto done;
|
|
}
|
|
|
|
for (i = 0; i < len / 4; i++) {
|
|
if (buf[i] != (sector << 24 | i)) {
|
|
printf ("flashDiag: Verify error "
|
|
"(dev: %d, sector: %d, offset: 0x%x)\n",
|
|
DEV_NO (dev), sector, i);
|
|
printf ("flashDiag: Expected 0x%08x, got 0x%08x\n",
|
|
sector << 24 | i, buf[i]);
|
|
|
|
goto done;
|
|
}
|
|
}
|
|
}
|
|
|
|
printf ("flashDiag: Erasing\n");
|
|
|
|
if (flashErase (dev) == ERROR) {
|
|
printf ("flashDiag: Final erase failed\n");
|
|
goto done;
|
|
}
|
|
|
|
rv = OK;
|
|
|
|
done:
|
|
if (buf)
|
|
free (buf);
|
|
|
|
if (rv == OK)
|
|
printf ("flashDiag: Device %d passed\n", DEV_NO (dev));
|
|
else
|
|
printf ("flashDiag: Device %d failed\n", DEV_NO (dev));
|
|
|
|
return rv;
|
|
}
|
|
|
|
STATUS flashDiagAll (void)
|
|
{
|
|
int i;
|
|
int rv = OK;
|
|
|
|
PRINTF ("flashDiagAll: devices=%d\n", flashDevCount);
|
|
|
|
for (i = 0; i < flashDevCount; i++) {
|
|
flash_dev_t *dev = &flashDev[i];
|
|
|
|
if (dev->found && flashDiag (dev) == ERROR)
|
|
rv = ERROR;
|
|
}
|
|
|
|
if (rv == OK)
|
|
printf ("flashDiagAll: Passed\n");
|
|
else
|
|
printf ("flashDiagAll: Failed because of earlier errors\n");
|
|
|
|
return OK;
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
unsigned long flash_init (void)
|
|
{
|
|
unsigned long size = 0;
|
|
flash_dev_t *dev = NULL;
|
|
|
|
flashLibInit ();
|
|
|
|
/*
|
|
* Provide info for FLASH (up to 960K) of Kernel Image data.
|
|
*/
|
|
dev = FLASH_DEV_BANK0_LOW;
|
|
flash_info[FLASH_BANK_KERNEL].flash_id =
|
|
(dev->vendorID << 16) | dev->deviceID;
|
|
flash_info[FLASH_BANK_KERNEL].sector_count = dev->sectors;
|
|
flash_info[FLASH_BANK_KERNEL].size =
|
|
flash_info[FLASH_BANK_KERNEL].sector_count * FLASH_SECTOR_SIZE;
|
|
flash_info[FLASH_BANK_KERNEL].start[FIRST_SECTOR] = dev->base;
|
|
size += flash_info[FLASH_BANK_KERNEL].size;
|
|
|
|
/*
|
|
* Provide info for 512K PLCC FLASH ROM (U-Boot)
|
|
*/
|
|
dev = FLASH_DEV_BANK0_BOOT;
|
|
flash_info[FLASH_BANK_BOOT].flash_id =
|
|
(dev->vendorID << 16) | dev->deviceID;
|
|
flash_info[FLASH_BANK_BOOT].sector_count = dev->sectors;
|
|
flash_info[FLASH_BANK_BOOT].size =
|
|
flash_info[FLASH_BANK_BOOT].sector_count * FLASH_SECTOR_SIZE;
|
|
flash_info[FLASH_BANK_BOOT].start[FIRST_SECTOR] = dev->base;
|
|
size += flash_info[FLASH_BANK_BOOT].size;
|
|
|
|
|
|
/*
|
|
* Provide info for 512K FLASH0 segment (U-Boot)
|
|
*/
|
|
dev = FLASH_DEV_BANK0_HIGH;
|
|
flash_info[FLASH_BANK_AUX].flash_id =
|
|
(dev->vendorID << 16) | dev->deviceID;
|
|
flash_info[FLASH_BANK_AUX].sector_count = dev->sectors;
|
|
flash_info[FLASH_BANK_AUX].size =
|
|
flash_info[FLASH_BANK_AUX].sector_count * FLASH_SECTOR_SIZE;
|
|
flash_info[FLASH_BANK_AUX].start[FIRST_SECTOR] = dev->base;
|
|
size += flash_info[FLASH_BANK_AUX].size;
|
|
|
|
|
|
return size;
|
|
}
|
|
|
|
/*
|
|
* Get flash device from U-Boot flash info.
|
|
*/
|
|
flash_dev_t *getFlashDevFromInfo (flash_info_t * info)
|
|
{
|
|
int i;
|
|
|
|
if (!info)
|
|
return NULL;
|
|
|
|
for (i = 0; i < flashDevCount; i++) {
|
|
flash_dev_t *dev = &flashDev[i];
|
|
|
|
if (dev->found && (dev->base == info->start[0]))
|
|
return dev;
|
|
}
|
|
printf ("ERROR: notice, no FLASH mapped at address 0x%x\n",
|
|
(unsigned int) info->start[0]);
|
|
return NULL;
|
|
}
|
|
|
|
ulong flash_get_size (vu_long * addr, flash_info_t * info)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < flashDevCount; i++) {
|
|
flash_dev_t *dev = &flashDev[i];
|
|
|
|
if (dev->found) {
|
|
if (dev->base == (unsigned int) addr) {
|
|
info->flash_id = (dev->vendorID << 16) | dev->deviceID;
|
|
info->sector_count = dev->sectors;
|
|
info->size = info->sector_count * FLASH_SECTOR_SIZE;
|
|
return dev->sectors * FLASH_SECTOR_SIZE;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void flash_print_info (flash_info_t * info)
|
|
{
|
|
int i;
|
|
unsigned int chip;
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
printf ("missing or unknown FLASH type\n");
|
|
return;
|
|
}
|
|
|
|
switch ((info->flash_id >> 16) & 0xff) {
|
|
case 0x1:
|
|
printf ("AMD ");
|
|
break;
|
|
default:
|
|
printf ("Unknown Vendor ");
|
|
break;
|
|
}
|
|
chip = (unsigned int) info->flash_id & 0x000000ff;
|
|
|
|
switch (chip) {
|
|
|
|
case AMD_ID_F040B:
|
|
printf ("AM29F040B (4 Mbit)\n");
|
|
break;
|
|
|
|
case AMD_ID_LV160B:
|
|
case FLASH_AM160LV:
|
|
case 0x49:
|
|
printf ("AM29LV160B (16 Mbit / 2M x 8bit)\n");
|
|
break;
|
|
|
|
default:
|
|
printf ("Unknown Chip Type:0x%x\n", chip);
|
|
break;
|
|
}
|
|
|
|
printf (" Size: %ld bytes in %d Sectors\n",
|
|
info->size, 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[FIRST_SECTOR] + i * FLASH_SECTOR_SIZE,
|
|
info->protect[i] ? " (RO)" : " ");
|
|
}
|
|
printf ("\n");
|
|
}
|
|
|
|
|
|
/*
|
|
* Erase a range of flash sectors.
|
|
*/
|
|
int flash_erase (flash_info_t * info, int s_first, int s_last)
|
|
{
|
|
int prot, sect;
|
|
flash_dev_t *dev = NULL;
|
|
|
|
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;
|
|
}
|
|
|
|
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 erase on unprotected sectors */
|
|
dev = getFlashDevFromInfo (info);
|
|
if (dev) {
|
|
printf ("Erase FLASH[%s] -%d sectors:", dev->name, dev->sectors);
|
|
for (sect = s_first; sect <= s_last; sect++) {
|
|
if (info->protect[sect] == 0) { /* not protected */
|
|
printf (".");
|
|
if (ERROR == flashEraseSector (dev, sect)) {
|
|
printf ("ERROR: could not erase sector %d on FLASH[%s]\n", sect, dev->name);
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
printf (" done\n");
|
|
return 0;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Write a word to Flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
static int write_word (flash_info_t * info, ulong dest, ulong data)
|
|
{
|
|
|
|
flash_dev_t *dev = getFlashDevFromInfo (info);
|
|
int addr = dest - info->start[0];
|
|
|
|
if (!dev)
|
|
return 1;
|
|
|
|
if (OK != flashWrite (dev, addr, (char *) &data, sizeof (ulong))) {
|
|
printf ("ERROR: could not write to addr=0x%x, data=0x%x\n",
|
|
(unsigned int) addr, (unsigned) data);
|
|
return 1;
|
|
}
|
|
|
|
if ((addr % FLASH_SECTOR_SIZE) == 0)
|
|
printf (".");
|
|
|
|
|
|
PRINTF ("write_word:0x%x, base=0x%x, addr=0x%x, data=0x%x\n",
|
|
(unsigned) info->start[0],
|
|
(unsigned) dest,
|
|
(unsigned) (dest - info->start[0]), (unsigned) data);
|
|
|
|
return (0);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Copy memory to flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
|
|
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
|
|
{
|
|
ulong cp, wp, data;
|
|
int i, l, rc;
|
|
flash_dev_t *dev = getFlashDevFromInfo (info);
|
|
|
|
if (dev) {
|
|
printf ("FLASH[%s]:", dev->name);
|
|
wp = (addr & ~3); /* 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);
|
|
}
|
|
for (; i < 4 && cnt > 0; ++i) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
++cp;
|
|
}
|
|
for (; cnt == 0 && i < 4; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *) cp);
|
|
}
|
|
if ((rc = write_word (info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += 4;
|
|
}
|
|
|
|
/*
|
|
* handle word aligned part
|
|
*/
|
|
while (cnt >= 4) {
|
|
data = 0;
|
|
for (i = 0; i < 4; ++i) {
|
|
data = (data << 8) | *src++;
|
|
}
|
|
if ((rc = write_word (info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += 4;
|
|
cnt -= 4;
|
|
}
|
|
|
|
if (cnt == 0) {
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
data = 0;
|
|
for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
}
|
|
for (; i < 4; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *) cp);
|
|
}
|
|
|
|
return (write_word (info, wp, data));
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|