+++ /dev/null
-/*
- * U-Boot - flash.c Flash driver for PSD4256GV
- *
- * Copyright (c) 2005-2007 Analog Devices Inc.
- * This file is based on BF533EzFlash.c originally written by Analog Devices, Inc.
- *
- * (C) Copyright 2000-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <asm/io.h>
-#include "flash-defines.h"
-
-int AFP_NumSectors = 40;
-long AFP_SectorSize1 = 0x10000;
-int AFP_SectorSize2 = 0x4000;
-
-void flash_reset(void)
-{
- reset_flash();
-}
-
-unsigned long flash_get_size(ulong baseaddr, flash_info_t * info, int bank_flag)
-{
- int id = 0, i = 0;
- static int FlagDev = 1;
-
- id = get_codes();
- if (FlagDev) {
-#ifdef DEBUG
- printf("Device ID of the Flash is %x\n", id);
-#endif
- FlagDev = 0;
- }
- info->flash_id = id;
-
- switch (bank_flag) {
- case 0:
- for (i = PriFlashABegin; i < SecFlashABegin; i++)
- info->start[i] = (baseaddr + (i * AFP_SectorSize1));
- info->size = 0x200000;
- info->sector_count = 32;
- break;
- case 1:
- info->start[0] = baseaddr + SecFlashASec1Off;
- info->start[1] = baseaddr + SecFlashASec2Off;
- info->start[2] = baseaddr + SecFlashASec3Off;
- info->start[3] = baseaddr + SecFlashASec4Off;
- info->size = 0x10000;
- info->sector_count = 4;
- break;
- case 2:
- info->start[0] = baseaddr + SecFlashBSec1Off;
- info->start[1] = baseaddr + SecFlashBSec2Off;
- info->start[2] = baseaddr + SecFlashBSec3Off;
- info->start[3] = baseaddr + SecFlashBSec4Off;
- info->size = 0x10000;
- info->sector_count = 4;
- break;
- }
- return (info->size);
-}
-
-unsigned long flash_init(void)
-{
- unsigned long size_b0, size_b1, size_b2;
- int i;
-
- size_b0 = size_b1 = size_b2 = 0;
-#ifdef DEBUG
- printf("Flash Memory Start 0x%x\n", CONFIG_SYS_FLASH_BASE);
- printf("Memory Map for the Flash\n");
- printf("0x20000000 - 0x200FFFFF Flash A Primary (1MB)\n");
- printf("0x20100000 - 0x201FFFFF Flash B Primary (1MB)\n");
- printf("0x20200000 - 0x2020FFFF Flash A Secondary (64KB)\n");
- printf("0x20280000 - 0x2028FFFF Flash B Secondary (64KB)\n");
- printf("Please type command flinfo for information on Sectors \n");
-#endif
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- size_b0 = flash_get_size(CONFIG_SYS_FLASH0_BASE, &flash_info[0], 0);
- size_b1 = flash_get_size(CONFIG_SYS_FLASH0_BASE, &flash_info[1], 1);
- size_b2 = flash_get_size(CONFIG_SYS_FLASH0_BASE, &flash_info[2], 2);
-
- if (flash_info[0].flash_id == FLASH_UNKNOWN || size_b0 == 0) {
- printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
- size_b0, size_b0 >> 20);
- }
-
- (void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH0_BASE,
- (flash_info[0].start[2] - 1), &flash_info[0]);
-
- return (size_b0 + size_b1 + size_b2);
-}
-
-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) {
- case FLASH_PSD4256GV:
- printf("ST Microelectronics ");
- break;
- default:
- printf("Unknown Vendor: (0x%08lX) ", info->flash_id);
- break;
- }
- 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;
-}
-
-int flash_erase(flash_info_t * info, int s_first, int s_last)
-{
- int cnt = 0, i;
- int prot, sect;
-
- 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");
-
- cnt = s_last - s_first + 1;
-
- if (cnt == FLASH_TOT_SECT) {
- printf("Erasing flash, Please Wait \n");
- if (erase_flash() < 0) {
- printf("Erasing flash failed \n");
- return FLASH_FAIL;
- }
- } else {
- printf("Erasing Flash locations, Please Wait\n");
- for (i = s_first; i <= s_last; i++) {
- if (info->protect[i] == 0) { /* not protected */
- if (erase_block_flash(i, info->start[i]) < 0) {
- printf("Error Sector erasing \n");
- return FLASH_FAIL;
- }
- }
- }
- }
- return FLASH_SUCCESS;
-}
-
-int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- int ret;
- int d;
- if (addr % 2) {
- read_flash(addr - 1 - CONFIG_SYS_FLASH_BASE, &d);
- d = (int)((d & 0x00FF) | (*src++ << 8));
- ret = write_data(addr - 1, 2, (uchar *) & d);
- if (ret == FLASH_FAIL)
- return ERR_NOT_ERASED;
- ret = write_data(addr + 1, cnt - 1, src);
- } else
- ret = write_data(addr, cnt, src);
- if (ret == FLASH_FAIL)
- return ERR_NOT_ERASED;
- return FLASH_SUCCESS;
-}
-
-int write_data(long lStart, long lCount, uchar * pnData)
-{
- long i = 0;
- unsigned long ulOffset = lStart - CONFIG_SYS_FLASH_BASE;
- int d;
- int nSector = 0;
- int flag = 0;
-
- if (lCount % 2) {
- flag = 1;
- lCount = lCount - 1;
- }
-
- for (i = 0; i < lCount - 1; i += 2, ulOffset += 2) {
- get_sector_number(ulOffset, &nSector);
- read_flash(ulOffset, &d);
- if (d != 0xffff) {
- printf
- ("Flash not erased at offset 0x%lx Please erase to reprogram\n",
- ulOffset);
- return FLASH_FAIL;
- }
- unlock_flash(ulOffset);
- d = (int)(pnData[i] | pnData[i + 1] << 8);
- write_flash(ulOffset, d);
- if (poll_toggle_bit(ulOffset) < 0) {
- printf("Error programming the flash \n");
- return FLASH_FAIL;
- }
- if ((i > 0) && (!(i % AFP_SectorSize2)))
- printf(".");
- }
- if (flag) {
- get_sector_number(ulOffset, &nSector);
- read_flash(ulOffset, &d);
- if (d != 0xffff) {
- printf
- ("Flash not erased at offset 0x%lx Please erase to reprogram\n",
- ulOffset);
- return FLASH_FAIL;
- }
- unlock_flash(ulOffset);
- d = (int)(pnData[i] | (d & 0xFF00));
- write_flash(ulOffset, d);
- if (poll_toggle_bit(ulOffset) < 0) {
- printf("Error programming the flash \n");
- return FLASH_FAIL;
- }
- }
- return FLASH_SUCCESS;
-}
-
-int read_data(long ulStart, long lCount, long lStride, int *pnData)
-{
- long i = 0;
- int j = 0;
- long ulOffset = ulStart;
- int iShift = 0;
- int iNumWords = 2;
- int nLeftover = lCount % 4;
- int nHi, nLow;
- int nSector = 0;
-
- for (i = 0; (i < lCount / 4) && (i < BUFFER_SIZE); i++) {
- for (iShift = 0, j = 0; j < iNumWords; j += 2) {
- if ((ulOffset >= INVALIDLOCNSTART)
- && (ulOffset < INVALIDLOCNEND))
- return FLASH_FAIL;
-
- get_sector_number(ulOffset, &nSector);
- read_flash(ulOffset, &nLow);
- ulOffset += (lStride * 2);
- read_flash(ulOffset, &nHi);
- ulOffset += (lStride * 2);
- pnData[i] = (nHi << 16) | nLow;
- }
- }
- if (nLeftover > 0) {
- if ((ulOffset >= INVALIDLOCNSTART)
- && (ulOffset < INVALIDLOCNEND))
- return FLASH_FAIL;
-
- get_sector_number(ulOffset, &nSector);
- read_flash(ulOffset, &pnData[i]);
- }
- return FLASH_SUCCESS;
-}
-
-int write_flash(long nOffset, int nValue)
-{
- long addr;
-
- addr = (CONFIG_SYS_FLASH_BASE + nOffset);
- SSYNC();
- *(unsigned volatile short *)addr = nValue;
- SSYNC();
- if (poll_toggle_bit(nOffset) < 0)
- return FLASH_FAIL;
- return FLASH_SUCCESS;
-}
-
-int read_flash(long nOffset, int *pnValue)
-{
- int nValue = 0x0;
- long addr = (CONFIG_SYS_FLASH_BASE + nOffset);
-
- if (nOffset != 0x2)
- reset_flash();
- SSYNC();
- nValue = *(volatile unsigned short *)addr;
- SSYNC();
- *pnValue = nValue;
- return true;
-}
-
-int poll_toggle_bit(long lOffset)
-{
- unsigned int u1, u2;
- unsigned long timeout = 0xFFFFFFFF;
- volatile unsigned long *FB =
- (volatile unsigned long *)(0x20000000 + lOffset);
- while (1) {
- if (timeout < 0)
- break;
- u1 = *(volatile unsigned short *)FB;
- u2 = *(volatile unsigned short *)FB;
- if ((u1 & 0x0040) == (u2 & 0x0040))
- return FLASH_SUCCESS;
- if ((u2 & 0x0020) == 0x0000)
- continue;
- u1 = *(volatile unsigned short *)FB;
- if ((u2 & 0x0040) == (u1 & 0x0040))
- return FLASH_SUCCESS;
- else {
- reset_flash();
- return FLASH_FAIL;
- }
- timeout--;
- }
- printf("Time out occurred \n");
- if (timeout < 0)
- return FLASH_FAIL;
-}
-
-void reset_flash(void)
-{
- write_flash(WRITESEQ1, RESET_VAL);
- /* Wait for 10 micro seconds */
- udelay(10);
-}
-
-int erase_flash(void)
-{
- write_flash(WRITESEQ1, WRITEDATA1);
- write_flash(WRITESEQ2, WRITEDATA2);
- write_flash(WRITESEQ3, WRITEDATA3);
- write_flash(WRITESEQ4, WRITEDATA4);
- write_flash(WRITESEQ5, WRITEDATA5);
- write_flash(WRITESEQ6, WRITEDATA6);
-
- if (poll_toggle_bit(0x0000) < 0)
- return FLASH_FAIL;
-
- write_flash(SecFlashAOff + WRITESEQ1, WRITEDATA1);
- write_flash(SecFlashAOff + WRITESEQ2, WRITEDATA2);
- write_flash(SecFlashAOff + WRITESEQ3, WRITEDATA3);
- write_flash(SecFlashAOff + WRITESEQ4, WRITEDATA4);
- write_flash(SecFlashAOff + WRITESEQ5, WRITEDATA5);
- write_flash(SecFlashAOff + WRITESEQ6, WRITEDATA6);
-
- if (poll_toggle_bit(SecFlashASec1Off) < 0)
- return FLASH_FAIL;
-
- write_flash(PriFlashBOff + WRITESEQ1, WRITEDATA1);
- write_flash(PriFlashBOff + WRITESEQ2, WRITEDATA2);
- write_flash(PriFlashBOff + WRITESEQ3, WRITEDATA3);
- write_flash(PriFlashBOff + WRITESEQ4, WRITEDATA4);
- write_flash(PriFlashBOff + WRITESEQ5, WRITEDATA5);
- write_flash(PriFlashBOff + WRITESEQ6, WRITEDATA6);
-
- if (poll_toggle_bit(PriFlashBOff) < 0)
- return FLASH_FAIL;
-
- write_flash(SecFlashBOff + WRITESEQ1, WRITEDATA1);
- write_flash(SecFlashBOff + WRITESEQ2, WRITEDATA2);
- write_flash(SecFlashBOff + WRITESEQ3, WRITEDATA3);
- write_flash(SecFlashBOff + WRITESEQ4, WRITEDATA4);
- write_flash(SecFlashBOff + WRITESEQ5, WRITEDATA5);
- write_flash(SecFlashBOff + WRITESEQ6, WRITEDATA6);
-
- if (poll_toggle_bit(SecFlashBOff) < 0)
- return FLASH_FAIL;
-
- return FLASH_SUCCESS;
-}
-
-int erase_block_flash(int nBlock, unsigned long address)
-{
- long ulSectorOff = 0x0;
-
- if ((nBlock < 0) || (nBlock > AFP_NumSectors))
- return false;
-
- ulSectorOff = (address - CONFIG_SYS_FLASH_BASE);
-
- write_flash((WRITESEQ1 | ulSectorOff), WRITEDATA1);
- write_flash((WRITESEQ2 | ulSectorOff), WRITEDATA2);
- write_flash((WRITESEQ3 | ulSectorOff), WRITEDATA3);
- write_flash((WRITESEQ4 | ulSectorOff), WRITEDATA4);
- write_flash((WRITESEQ5 | ulSectorOff), WRITEDATA5);
-
- write_flash(ulSectorOff, BlockEraseVal);
-
- if (poll_toggle_bit(ulSectorOff) < 0)
- return FLASH_FAIL;
-
- return FLASH_SUCCESS;
-}
-
-void unlock_flash(long ulOffset)
-{
- unsigned long ulOffsetAddr = ulOffset;
- ulOffsetAddr &= 0xFFFF0000;
-
- write_flash((WRITESEQ1 | ulOffsetAddr), UNLOCKDATA1);
- write_flash((WRITESEQ2 | ulOffsetAddr), UNLOCKDATA2);
- write_flash((WRITESEQ3 | ulOffsetAddr), UNLOCKDATA3);
-}
-
-int get_codes()
-{
- int dev_id = 0;
-
- write_flash(WRITESEQ1, GETCODEDATA1);
- write_flash(WRITESEQ2, GETCODEDATA2);
- write_flash(WRITESEQ3, GETCODEDATA3);
-
- read_flash(0x0002, &dev_id);
- dev_id &= 0x00FF;
-
- reset_flash();
-
- return dev_id;
-}
-
-void get_sector_number(long ulOffset, int *pnSector)
-{
- int nSector = 0;
-
- if (ulOffset >= SecFlashAOff) {
- if ((ulOffset < SecFlashASec1Off)
- && (ulOffset < SecFlashASec2Off)) {
- nSector = SECT32;
- } else if ((ulOffset >= SecFlashASec2Off)
- && (ulOffset < SecFlashASec3Off)) {
- nSector = SECT33;
- } else if ((ulOffset >= SecFlashASec3Off)
- && (ulOffset < SecFlashASec4Off)) {
- nSector = SECT34;
- } else if ((ulOffset >= SecFlashASec4Off)
- && (ulOffset < SecFlashAEndOff)) {
- nSector = SECT35;
- }
- } else if (ulOffset >= SecFlashBOff) {
- if ((ulOffset < SecFlashBSec1Off)
- && (ulOffset < SecFlashBSec2Off)) {
- nSector = SECT36;
- }
- if ((ulOffset < SecFlashBSec2Off)
- && (ulOffset < SecFlashBSec3Off)) {
- nSector = SECT37;
- }
- if ((ulOffset < SecFlashBSec3Off)
- && (ulOffset < SecFlashBSec4Off)) {
- nSector = SECT38;
- }
- if ((ulOffset < SecFlashBSec4Off)
- && (ulOffset < SecFlashBEndOff)) {
- nSector = SECT39;
- }
- } else if ((ulOffset >= PriFlashAOff) && (ulOffset < SecFlashAOff)) {
- nSector = ulOffset & 0xffff0000;
- nSector = ulOffset >> 16;
- nSector = nSector & 0x000ff;
- }
-
- if ((nSector >= 0) && (nSector < AFP_NumSectors)) {
- *pnSector = nSector;
- }
-}
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