+++ /dev/null
-/*
- * (C) Copyright 2000-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-
-#include <common.h>
-#if defined(CONFIG_NIOS)
-#include <nios.h>
-#else
-#include <asm/io.h>
-#endif
-
-#define SECTSZ (64 * 1024)
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-/*----------------------------------------------------------------------*/
-unsigned long flash_init (void)
-{
- int i;
- unsigned long addr;
- flash_info_t *fli = &flash_info[0];
-
- fli->size = CONFIG_SYS_FLASH_SIZE;
- fli->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
- fli->flash_id = FLASH_MAN_AMD + FLASH_AMDLV065D;
-
- addr = CONFIG_SYS_FLASH_BASE;
- for (i = 0; i < fli->sector_count; ++i) {
- fli->start[i] = addr;
- addr += SECTSZ;
- fli->protect[i] = 1;
- }
-
- return (CONFIG_SYS_FLASH_SIZE);
-}
-/*--------------------------------------------------------------------*/
-void flash_print_info (flash_info_t * info)
-{
- int i, k;
- int erased;
- unsigned long *addr;
-
- 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) {
-
- /* Check if whole sector is erased */
- erased = 1;
- addr = (unsigned long *) info->start[i];
- for (k = 0; k < SECTSZ/sizeof(unsigned long); k++) {
- if ( readl(addr++) != (unsigned long)-1) {
- erased = 0;
- break;
- }
- }
-
- /* Print the info */
- if ((i % 5) == 0)
- printf ("\n ");
- printf (" %08lX%s%s",
- info->start[i],
- erased ? " E" : " ",
- info->protect[i] ? "RO " : " ");
- }
- printf ("\n");
-}
-
-/*-------------------------------------------------------------------*/
-
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
- unsigned char *addr = (unsigned char *) info->start[0];
- unsigned char *addr2;
- int prot, sect;
- ulong start;
-
- /* Some sanity checking */
- if ((s_first < 0) || (s_first > s_last)) {
- 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");
- }
-
- /* It's ok to erase multiple sectors provided we don't delay more
- * than 50 usec between cmds ... at which point the erase time-out
- * occurs. So don't go and put printf() calls in the loop ... it
- * won't be very helpful ;-)
- */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr2 = (unsigned char *) info->start[sect];
- writeb (0xaa, addr);
- writeb (0x55, addr);
- writeb (0x80, addr);
- writeb (0xaa, addr);
- writeb (0x55, addr);
- writeb (0x30, addr2);
- /* Now just wait for 0xff & provide some user
- * feedback while we wait.
- */
- start = get_timer (0);
- while ( readb (addr2) != 0xff) {
- udelay (1000 * 1000);
- putc ('.');
- if (get_timer (start) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("timeout\n");
- return 1;
- }
- }
- }
- }
- printf ("\n");
- 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)
-{
-
- vu_char *cmd = (vu_char *) info->start[0];
- vu_char *dst = (vu_char *) addr;
- unsigned char b;
- ulong start;
-
- while (cnt) {
- /* Check for sufficient erase */
- b = *src;
- if ((readb (dst) & b) != b) {
- printf ("%02x : %02x\n", readb (dst), b);
- return (2);
- }
-
- writeb (0xaa, cmd);
- writeb (0x55, cmd);
- writeb (0xa0, cmd);
- writeb (b, dst);
-
- /* Verify write */
- start = get_timer (0);
- while (readb (dst) != b) {
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return 1;
- }
- }
- dst++;
- src++;
- cnt--;
- }
-
- return (0);
-}
+++ /dev/null
-/*
- * (C) Copyright 2000-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-
-#include <common.h>
-#include <nios.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-/*--------------------------------------------------------------------*/
-void flash_print_info (flash_info_t * info)
-{
- int i, k;
- unsigned long size;
- int erased;
- volatile unsigned char *flash;
-
- 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) {
-
- /* Check if whole sector is erased */
- if (i != (info->sector_count - 1))
- size = info->start[i + 1] - info->start[i];
- else
- size = info->start[0] + info->size - info->start[i];
- erased = 1;
- flash = (volatile unsigned char *) info->start[i];
- for (k = 0; k < size; k++) {
- if (*flash++ != 0xff) {
- erased = 0;
- break;
- }
- }
-
- /* Print the info */
- if ((i % 5) == 0)
- printf ("\n ");
- printf (" %08lX%s%s", info->start[i], erased ? " E" : " ",
- info->protect[i] ? "RO " : " ");
- }
- printf ("\n");
-}
-
-/*-------------------------------------------------------------------*/
-
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
- int prot, sect;
- unsigned oldpri;
- ulong start;
-
- /* Some sanity checking */
- if ((s_first < 0) || (s_first > s_last)) {
- 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");
- }
-
-#ifdef DEBUG
- for (sect = s_first; sect <= s_last; sect++) {
- printf("- Erase: Sect: %i @ 0x%08x\n", sect, info->start[sect]);
- }
-#endif
-
- /* NOTE: disabling interrupts on Nios can be very bad since it
- * also disables the LO_LIMIT exception. It's better here to
- * set the interrupt priority to 3 & restore it when we're done.
- */
- oldpri = ipri (3);
-
- /* It's ok to erase multiple sectors provided we don't delay more
- * than 50 usec between cmds ... at which point the erase time-out
- * occurs. So don't go and put printf() calls in the loop ... it
- * won't be very helpful ;-)
- */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
- *addr = 0xaa;
- *addr = 0x55;
- *addr = 0x80;
- *addr = 0xaa;
- *addr = 0x55;
- *addr2 = 0x30;
- /* Now just wait for 0xff & provide some user
- * feedback while we wait. Here we have to grant
- * timer interrupts. Otherwise get_timer() can't
- * work right. */
- ipri(oldpri);
- start = get_timer (0);
- while (*addr2 != 0xff) {
- udelay (1000 * 1000);
- putc ('.');
- if (get_timer (start) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("timeout\n");
- return 1;
- }
- }
- oldpri = ipri (3); /* disallow non important irqs again */
- }
- }
-
- printf ("\n");
-
- /* Restore interrupt priority */
- ipri (oldpri);
-
- 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)
-{
-
- vu_char *cmd = (vu_char *) info->start[0];
- vu_char *dst = (vu_char *) addr;
- unsigned char b;
- unsigned oldpri;
- ulong start;
-
- while (cnt) {
- /* Check for sufficient erase */
- b = *src;
- if ((*dst & b) != b) {
- printf ("%02x : %02x\n", *dst, b);
- return (2);
- }
-
- /* Disable interrupts other than window underflow
- * (interrupt priority 2)
- */
- oldpri = ipri (3);
- *cmd = 0xaa;
- *cmd = 0x55;
- *cmd = 0xa0;
- *dst = b;
-
- /* Verify write */
- start = get_timer (0);
- while (*dst != b) {
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- ipri (oldpri);
- return 1;
- }
- }
- dst++;
- src++;
- cnt--;
- ipri (oldpri);
- }
-
- return (0);
-}
projects / u-boot.git / commitdiff