diff options
Diffstat (limited to 'board/evb64260/intel_flash.c')
-rw-r--r-- | board/evb64260/intel_flash.c | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/board/evb64260/intel_flash.c b/board/evb64260/intel_flash.c deleted file mode 100644 index 9acc3a0..0000000 --- a/board/evb64260/intel_flash.c +++ /dev/null @@ -1,260 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - * Hacked for the Hymod board by Murray.Jensen@cmst.csiro.au, 20-Oct-00 - */ - -#include <common.h> -#include <mpc8xx.h> -#include <galileo/gt64260R.h> -#include <galileo/memory.h> -#include "intel_flash.h" - - -/*----------------------------------------------------------------------- - * Protection Flags: - */ -#define FLAG_PROTECT_SET 0x01 -#define FLAG_PROTECT_CLEAR 0x02 - -static void -bank_reset(flash_info_t *info, int sect) -{ - bank_addr_t addrw, eaddrw; - - addrw = (bank_addr_t)info->start[sect]; - eaddrw = BANK_ADDR_NEXT_WORD(addrw); - - while (addrw < eaddrw) { -#ifdef FLASH_DEBUG - printf(" writing reset cmd to addr 0x%08lx\n", - (unsigned long)addrw); -#endif - *addrw = BANK_CMD_RST; - addrw++; - } -} - -static void -bank_erase_init(flash_info_t *info, int sect) -{ - bank_addr_t addrw, saddrw, eaddrw; - int flag; - -#ifdef FLASH_DEBUG - printf("0x%08x BANK_CMD_PROG\n", BANK_CMD_PROG); - printf("0x%08x BANK_CMD_ERASE1\n", BANK_CMD_ERASE1); - printf("0x%08x BANK_CMD_ERASE2\n", BANK_CMD_ERASE2); - printf("0x%08x BANK_CMD_CLR_STAT\n", BANK_CMD_CLR_STAT); - printf("0x%08x BANK_CMD_RST\n", BANK_CMD_RST); - printf("0x%08x BANK_STAT_RDY\n", BANK_STAT_RDY); - printf("0x%08x BANK_STAT_ERR\n", BANK_STAT_ERR); -#endif - - saddrw = (bank_addr_t)info->start[sect]; - eaddrw = BANK_ADDR_NEXT_WORD(saddrw); - -#ifdef FLASH_DEBUG - printf("erasing sector %d, start addr = 0x%08lx " - "(bank next word addr = 0x%08lx)\n", sect, - (unsigned long)saddrw, (unsigned long)eaddrw); -#endif - - /* Disable intrs which might cause a timeout here */ - flag = disable_interrupts(); - - for (addrw = saddrw; addrw < eaddrw; addrw++) { -#ifdef FLASH_DEBUG - printf(" writing erase cmd to addr 0x%08lx\n", - (unsigned long)addrw); -#endif - *addrw = BANK_CMD_ERASE1; - *addrw = BANK_CMD_ERASE2; - } - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); -} - -static int -bank_erase_poll(flash_info_t *info, int sect) -{ - bank_addr_t addrw, saddrw, eaddrw; - int sectdone, haderr; - - saddrw = (bank_addr_t)info->start[sect]; - eaddrw = BANK_ADDR_NEXT_WORD(saddrw); - - sectdone = 1; - haderr = 0; - - for (addrw = saddrw; addrw < eaddrw; addrw++) { - bank_word_t stat = *addrw; - -#ifdef FLASH_DEBUG - printf(" checking status at addr " - "0x%08x [0x%08x]\n", - (unsigned long)addrw, stat); -#endif - if ((stat & BANK_STAT_RDY) != BANK_STAT_RDY) - sectdone = 0; - else if ((stat & BANK_STAT_ERR) != 0) { - printf(" failed on sector %d " - "(stat = 0x%08x) at " - "address 0x%p\n", - sect, stat, addrw); - *addrw = BANK_CMD_CLR_STAT; - haderr = 1; - } - } - - if (haderr) - return (-1); - else - return (sectdone); -} - -int -write_word_intel(bank_addr_t addr, bank_word_t value) -{ - bank_word_t stat; - ulong start; - int flag, retval; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - *addr = BANK_CMD_PROG; - - *addr = value; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - retval = 0; - - /* data polling for D7 */ - start = get_timer (0); - do { - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { - retval = 1; - goto done; - } - stat = *addr; - } while ((stat & BANK_STAT_RDY) != BANK_STAT_RDY); - - if ((stat & BANK_STAT_ERR) != 0) { - printf("flash program failed (stat = 0x%08lx) " - "at address 0x%08lx\n", (ulong)stat, (ulong)addr); - *addr = BANK_CMD_CLR_STAT; - retval = 3; - } - -done: - /* reset to read mode */ - *addr = BANK_CMD_RST; - - return (retval); -} - -/*----------------------------------------------------------------------- - */ - -int -flash_erase_intel(flash_info_t *info, int s_first, int s_last) -{ - int prot, sect, haderr; - ulong start, now, last; - -#ifdef FLASH_DEBUG - printf("\nflash_erase: erase %d sectors (%d to %d incl.) from\n" - " Bank # %d: ", s_last - s_first + 1, s_first, s_last, - (info - flash_info) + 1); - flash_print_info(info); -#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; - } - - prot = 0; - for (sect=s_first; sect<=s_last; ++sect) { - if (info->protect[sect]) { - prot++; - } - } - - if (prot) { - printf("- Warning: %d protected sector%s will not be erased!\n", - prot, (prot > 1 ? "s" : "")); - } - - start = get_timer (0); - last = 0; - haderr = 0; - - for (sect = s_first; sect <= s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - ulong estart; - int sectdone; - - bank_erase_init(info, sect); - - /* wait at least 80us - let's wait 1 ms */ - udelay (1000); - - estart = get_timer(start); - - do { - now = get_timer(start); - - if (now - estart > CONFIG_SYS_FLASH_ERASE_TOUT) { - printf ("Timeout (sect %d)\n", sect); - haderr = 1; - break; - } - -#ifndef FLASH_DEBUG - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - putc ('.'); - last = now; - } -#endif - - sectdone = bank_erase_poll(info, sect); - - if (sectdone < 0) { - haderr = 1; - break; - } - - } while (!sectdone); - - if (haderr) - break; - } - } - - if (haderr > 0) - printf (" failed\n"); - else - printf (" done\n"); - - /* reset to read mode */ - for (sect = s_first; sect <= s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - bank_reset(info, sect); - } - } - return haderr; -} |