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-rw-r--r--board/v37/flash.c543
1 files changed, 0 insertions, 543 deletions
diff --git a/board/v37/flash.c b/board/v37/flash.c
deleted file mode 100644
index 5b34af2..0000000
--- a/board/v37/flash.c
+++ /dev/null
@@ -1,543 +0,0 @@
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/*
- * Yoo. Jonghoon, IPone, yooth@ipone.co.kr
- * U-Boot port on RPXlite board
- *
- * Some of flash control words are modified. (from 2x16bit device
- * to 4x8bit device)
- * RPXLite board I tested has only 4 AM29LV800BB devices. Other devices
- * are not tested.
- *
- * (?) Does an RPXLite board which
- * does not use AM29LV800 flash memory exist ?
- * I don't know...
- */
-
-#include <common.h>
-#include <mpc8xx.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size ( short manu, short dev_id, flash_info_t *info);
-static int write_word (flash_info_t *info, ulong dest, ulong data);
-static void flash_get_offsets (ulong base, flash_info_t *info, int two_chips);
-static void flash_get_id_word( void *ptr, short *ptr_manuf, short *ptr_dev_id);
-static void flash_get_id_long( void *ptr, short *ptr_manuf, short *ptr_dev_id);
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init (void)
-{
- volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- volatile memctl8xx_t *memctl = &immap->im_memctl;
- unsigned long size_b0, size_b1;
- short manu, dev_id;
- int i;
-
- /* Init: no FLASHes known */
- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- /* Do sizing to get full correct info */
-
- flash_get_id_word((void*)CONFIG_SYS_FLASH_BASE0,&manu,&dev_id);
-
- size_b0 = flash_get_size(manu, dev_id, &flash_info[0]);
-
- flash_get_offsets (CONFIG_SYS_FLASH_BASE0, &flash_info[0],0);
-
- memctl->memc_or0 = CONFIG_SYS_OR_TIMING_FLASH | (0 - size_b0);
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE0
- /* monitor protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[0]);
-#endif
-
- flash_get_id_long((void*)CONFIG_SYS_FLASH_BASE1,&manu,&dev_id);
-
- size_b1 = 2 * flash_get_size(manu, dev_id, &flash_info[1]);
-
- flash_get_offsets(CONFIG_SYS_FLASH_BASE1, &flash_info[1],1);
-
- memctl->memc_or1 = CONFIG_SYS_OR_TIMING_FLASH | (0 - size_b1);
-
- flash_info[0].size = size_b0;
- flash_info[1].size = size_b1;
-
- return (size_b0+size_b1);
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_get_offsets (ulong base, flash_info_t *info, int two_chips)
-{
- int i, addr_shift;
- vu_short *addr = (vu_short*)base;
-
- addr[0x555] = 0x00AA ;
- addr[0xAAA] = 0x0055 ;
- addr[0x555] = 0x0090 ;
-
- addr_shift = (two_chips ? 2 : 1 );
-
- /* set up sector start address table */
- if (info->flash_id & FLASH_BTYPE) {
- /* set sector offsets for bottom boot block type */
- info->start[0] = base + (0x00000000<<addr_shift);
- info->start[1] = base + (0x00002000<<addr_shift);
- info->start[2] = base + (0x00003000<<addr_shift);
- info->start[3] = base + (0x00004000<<addr_shift);
- for (i = 4; i < info->sector_count; i++) {
- info->start[i] = base + ((i-3) * (0x00008000<<addr_shift)) ;
- }
- } else {
- /* set sector offsets for top boot block type */
- i = info->sector_count - 1;
- info->start[i--] = base + info->size - (0x00002000<<addr_shift);
- info->start[i--] = base + info->size - (0x00003000<<addr_shift);
- info->start[i--] = base + info->size - (0x00004000<<addr_shift);
- for (; i >= 0; i--) {
- info->start[i] = base + i * (0x00008000<<addr_shift);
- }
- }
-
- /* check for protected sectors */
- for (i = 0; i < info->sector_count; i++) {
- /* read sector protection at sector address, (A7 .. A0) = 0x02 */
- /* D0 = 1 if protected */
- addr = (vu_short *)(info->start[i]);
- info->protect[i] = addr[1<<addr_shift] & 1 ;
- }
-
- addr = (vu_short *)info->start[0];
- *addr = 0xF0F0; /* reset bank */
-}
-
-/*-----------------------------------------------------------------------
- */
-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 & FLASH_VENDMASK) {
- case FLASH_MAN_AMD: printf ("AMD "); break;
- case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
- case FLASH_MAN_TOSH: printf ("TOSHIBA "); break;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n");
- break;
- case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n");
- break;
- case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n");
- break;
- case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n");
- break;
- default: printf ("Unknown Chip Type\n");
- break;
- }
-
- printf (" Size: %ld MB in %d Sectors\n",
- info->size >> 20, 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!
- */
-
-static void flash_get_id_word( void *ptr, short *ptr_manuf, short *ptr_dev_id)
-{
- vu_short *addr = (vu_short*)ptr;
-
- addr[0x555] = 0x00AA ;
- addr[0xAAA] = 0x0055 ;
- addr[0x555] = 0x0090 ;
-
- *ptr_manuf = addr[0];
- *ptr_dev_id = addr[1];
-
- addr[0] = 0xf0f0; /* return to normal */
-}
-
-static void flash_get_id_long( void *ptr, short *ptr_manuf, short *ptr_dev_id)
-{
- vu_short *addr = (vu_short*)ptr;
- vu_short *addr1, *addr2, *addr3;
-
- addr1 = (vu_short*) ( ((int)ptr) + (0x5555<<2) );
- addr2 = (vu_short*) ( ((int)ptr) + (0x2AAA<<2) );
- addr3 = (vu_short*) ( ((int)ptr) + (0x5555<<2) );
-
- *addr1 = 0xAAAA;
- *addr2 = 0x5555;
- *addr3 = 0x9090;
-
- *ptr_manuf = addr[0];
- *ptr_dev_id = addr[2];
-
- addr[0] = 0xf0f0; /* return to normal */
-}
-
-static ulong flash_get_size ( short manu, short dev_id, flash_info_t *info)
-{
- switch (manu) {
- case ((short)AMD_MANUFACT):
- info->flash_id = FLASH_MAN_AMD;
- break;
- case ((short)FUJ_MANUFACT):
- info->flash_id = FLASH_MAN_FUJ;
- break;
- case ((short)TOSH_MANUFACT):
- info->flash_id = FLASH_MAN_TOSH;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
-
- switch (dev_id) {
- case ((short)TOSH_ID_FVT160):
- info->flash_id += FLASH_AM160T;
- info->sector_count = 35;
- info->size = 0x00200000;
- break; /* => 1 MB */
-
- case ((short)TOSH_ID_FVB160):
- info->flash_id += FLASH_AM160B;
- info->sector_count = 35;
- info->size = 0x00200000;
- break; /* => 1 MB */
-
- case ((short)AMD_ID_LV400T):
- info->flash_id += FLASH_AM400T;
- info->sector_count = 11;
- info->size = 0x00100000;
- break; /* => 1 MB */
-
- case ((short)AMD_ID_LV400B):
- info->flash_id += FLASH_AM400B;
- info->sector_count = 11;
- info->size = 0x00100000;
- break; /* => 1 MB */
-
- case ((short)AMD_ID_LV800T):
- info->flash_id += FLASH_AM800T;
- info->sector_count = 19;
- info->size = 0x00200000;
- break; /* => 2 MB */
-
- case ((short)AMD_ID_LV800B):
- info->flash_id += FLASH_AM800B;
- info->sector_count = 19;
- info->size = 0x00400000; /*%%% Size doubled by yooth */
- break; /* => 4 MB */
-
- case ((short)AMD_ID_LV160T):
- info->flash_id += FLASH_AM160T;
- info->sector_count = 35;
- info->size = 0x00200000;
- break; /* => 4 MB */
-
- case ((short)AMD_ID_LV160B):
- info->flash_id += FLASH_AM160B;
- info->sector_count = 35;
- info->size = 0x00200000;
- break; /* => 4 MB */
- default:
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
-
- }
-
- return(info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- vu_short *addr = (vu_short*)(info->start[0]);
- int flag, prot, sect, l_sect;
- ulong start, now, last;
-
- 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;
- }
-
- if ((info->flash_id == FLASH_UNKNOWN) ||
- (info->flash_id > FLASH_AMD_COMP)) {
- 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");
- }
-
- l_sect = -1;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr[0x555] = (vu_short)0xAAAAAAAA;
- addr[0xAAA] = (vu_short)0x55555555;
- addr[0x555] = (vu_short)0x80808080;
- addr[0x555] = (vu_short)0xAAAAAAAA;
- addr[0xAAA] = (vu_short)0x55555555;
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr = (vu_short *)(info->start[sect]) ;
- addr[0] = (vu_short)0x30303030 ;
- l_sect = sect;
- }
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- /*
- * We wait for the last triggered sector
- */
- if (l_sect < 0)
- goto DONE;
-
- start = get_timer (0);
- last = start;
- addr = (vu_short *)(info->start[l_sect]);
- while ((addr[0] & 0x8080) != 0x8080) {
- if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- return 1;
- }
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
- }
- }
-
-DONE:
- /* reset to read mode */
- addr = (vu_short *)info->start[0];
- addr[0] = (vu_short)0xF0F0F0F0; /* reset bank */
-
- printf (" done\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)
-{
- ulong cp, wp, data;
- int i, l, rc;
-
- 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));
-}
-
-/*-----------------------------------------------------------------------
- * 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)
-{
- vu_short *addr = (vu_short *)(info->start[0]);
- vu_short sdata;
-
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_long *)dest) & data) != data) {
- return (2);
- }
-
- /* First write upper 16 bits */
- sdata = (short)(data>>16);
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr[0x555] = 0xAAAA;
- addr[0xAAA] = 0x5555;
- addr[0x555] = 0xA0A0;
-
- *((vu_short *)dest) = sdata;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer (0);
- while ((*((vu_short *)dest) & 0x8080) != (sdata & 0x8080)) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
-
- /* Now write lower 16 bits */
- sdata = (short)(data&0xffff);
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr[0x555] = 0xAAAA;
- addr[0xAAA] = 0x5555;
- addr[0x555] = 0xA0A0;
-
- *((vu_short *)dest + 1) = sdata;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer (0);
- while ((*((vu_short *)dest + 1) & 0x8080) != (sdata & 0x8080)) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
- return (0);
-}
-
-/*-----------------------------------------------------------------------
- */
generated by cgit v1.1 at 2024-11-05 22:02:12 +0000