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Diffstat (limited to 'board/RPXlite_dw/flash.c')
-rw-r--r--board/RPXlite_dw/flash.c474
1 files changed, 0 insertions, 474 deletions
diff --git a/board/RPXlite_dw/flash.c b/board/RPXlite_dw/flash.c
deleted file mode 100644
index c8de5ef..0000000
--- a/board/RPXlite_dw/flash.c
+++ /dev/null
@@ -1,474 +0,0 @@
-/*
- * (C) Copyright 2004
- * 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...
- */
-
-/* Yes,Yoo.They do use other FLASH for the board.
- *
- * Sam Song, IEMC. SHU, samsongshu@yahoo.com.cn
- * U-Boot port on RPXlite DW version board
- *
- * By now,it uses 4 AM29DL323DB90VI devices(4x8bit).
- * The total FLASH has 16MB(4x4MB).
- * I just made some necessary changes on the basis of Wolfgang and Yoo's job.
- *
- * June 8, 2004 */
-
-#include <common.h>
-#include <mpc8xx.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * Functions vu_long : volatile unsigned long IN include/common.h
- */
-static ulong flash_get_size (vu_long *addr, 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);
-
-unsigned long flash_init (void)
-{
- unsigned long size_b0 ;
- int i;
-
- /* Init: no FLASHes known */
- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE, &flash_info[0]);
- flash_get_offsets (CONFIG_SYS_FLASH_BASE, &flash_info[0]);
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
- /* If Monitor is in the cope of FLASH,then
- * protect this area by default in case for
- * other occupation. [SAM] */
-
- /* monitor protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+CONFIG_SYS_MONITOR_LEN-1,
- &flash_info[0]);
-#endif
- flash_info[0].size = size_b0;
- return (size_b0);
-}
-
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- int i;
-
- /* set up sector start address table */
- if (info->flash_id & FLASH_BTYPE) {
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00008000;
- info->start[2] = base + 0x00010000;
- info->start[3] = base + 0x00018000;
- info->start[4] = base + 0x00020000;
- info->start[5] = base + 0x00028000;
- info->start[6] = base + 0x00030000;
- info->start[7] = base + 0x00038000;
-
- for (i = 8; i < info->sector_count; i++) {
- info->start[i] = base + ((i-7) * 0x00040000);
- }
- } else {
- i = info->sector_count - 1;
- info->start[i--] = base + info->size - 0x00010000;
- info->start[i--] = base + info->size - 0x00018000;
- info->start[i--] = base + info->size - 0x00020000;
- for (; i >= 0; i--) {
- info->start[i] = base + i * 0x00040000;
- }
- }
-
-}
-
-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;
- 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;
- case FLASH_AMDL323B: printf ("AM29DL323B (32 Mbit, bottom boot sector)\n");
- break;
- /* I just add the FLASH_AMDL323B for RPXlite_DW BOARD. [SAM] */
- 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");
- return;
-}
-
-static ulong flash_get_size (vu_long *addr, flash_info_t *info)
-{
- short i;
- ulong value;
- ulong base = (ulong)addr;
-
- /* Write auto select command: read Manufacturer ID */
- addr[0xAAA] = 0x00AA00AA ;
- addr[0x555] = 0x00550055 ;
- addr[0xAAA] = 0x00900090 ;
-
- value = addr[0] ;
- switch (value & 0x00FF00FF) {
- case AMD_MANUFACT: /* AMD_MANUFACT =0x00010001 in flash.h */
- info->flash_id = FLASH_MAN_AMD; /* FLASH_MAN_AMD=0x00000000 in flash.h */
- break;
- case FUJ_MANUFACT:
- info->flash_id = FLASH_MAN_FUJ;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
- value = addr[2] ; /* device ID */
- switch (value & 0x00FF00FF) {
- case (AMD_ID_LV400T & 0x00FF00FF):
- info->flash_id += FLASH_AM400T;
- info->sector_count = 11;
- info->size = 0x00100000;
- break; /* => 1 MB */
- case (AMD_ID_LV400B & 0x00FF00FF):
- info->flash_id += FLASH_AM400B;
- info->sector_count = 11;
- info->size = 0x00100000;
- break; /* => 1 MB */
- case (AMD_ID_LV800T & 0x00FF00FF):
- info->flash_id += FLASH_AM800T;
- info->sector_count = 19;
- info->size = 0x00200000;
- break; /* => 2 MB */
- case (AMD_ID_LV800B & 0x00FF00FF):
- info->flash_id += FLASH_AM800B;
- info->sector_count = 19;
- info->size = 0x00400000; /* Size doubled by yooth */
- break; /* => 4 MB */
- case (AMD_ID_LV160T & 0x00FF00FF):
- info->flash_id += FLASH_AM160T;
- info->sector_count = 35;
- info->size = 0x00400000;
- break; /* => 4 MB */
- case (AMD_ID_LV160B & 0x00FF00FF):
- info->flash_id += FLASH_AM160B;
- info->sector_count = 35;
- info->size = 0x00400000;
- break; /* => 4 MB */
- case (AMD_ID_DL323B & 0x00FF00FF):
- info->flash_id += FLASH_AMDL323B;
- info->sector_count = 71;
- info->size = 0x01000000;
- break; /* => 16 MB(4x4MB) */
- /* AMD_ID_DL323B= 0x22532253 FLASH_AMDL323B= 0x0013
- * AMD_ID_DL323B could be found in <flash.h>.[SAM]
- * So we could get : flash_id = 0x00000013.
- * The first four-bit represents VEDOR ID,leaving others for FLASH ID. */
- default:
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
-
- }
- /* set up sector start address table */
- if (info->flash_id & FLASH_BTYPE) {
- /* FLASH_BTYPE=0x0001 mask for bottom boot sector type.If the last bit equals 1,
- * it means bottom boot flash. GOOD IDEA! [SAM]
- */
-
- /* set sector offsets for bottom boot block type */
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00008000;
- info->start[2] = base + 0x00010000;
- info->start[3] = base + 0x00018000;
- info->start[4] = base + 0x00020000;
- info->start[5] = base + 0x00028000;
- info->start[6] = base + 0x00030000;
- info->start[7] = base + 0x00038000;
-
- for (i = 8; i < info->sector_count; i++) {
- info->start[i] = base + ((i-7) * 0x00040000) ;
- }
- } else {
- /* set sector offsets for top boot block type */
- i = info->sector_count - 1;
- info->start[i--] = base + info->size - 0x00010000;
- info->start[i--] = base + info->size - 0x00018000;
- info->start[i--] = base + info->size - 0x00020000;
- for (; i >= 0; i--) {
- info->start[i] = base + i * 0x00040000;
- }
- }
-
- /* 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 = (volatile unsigned long *)(info->start[i]);
- /* info->protect[i] = addr[4] & 1 ; */
- /* Mask it for disorder FLASH protection **[Sam]** */
- }
-
- /*
- * Prevent writes to uninitialized FLASH.
- */
- if (info->flash_id != FLASH_UNKNOWN) {
- addr = (volatile unsigned long *)info->start[0];
-
- *addr = 0xF0F0F0F0; /* reset bank */
- }
- return (info->size);
-}
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- vu_long *addr = (vu_long*)(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[0xAAA] = 0xAAAAAAAA;
- addr[0x555] = 0x55555555;
- addr[0xAAA] = 0x80808080;
- addr[0xAAA] = 0xAAAAAAAA;
- addr[0x555] = 0x55555555;
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr = (vu_long *)(info->start[sect]) ;
- addr[0] = 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_long *)(info->start[l_sect]);
- while ((addr[0] & 0x80808080) != 0x80808080) {
- 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_long *)info->start[0];
- addr[0] = 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_long *addr = (vu_long *)(info->start[0]);
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_long *)dest) & data) != data) {
- return (2);
- }
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr[0xAAA] = 0xAAAAAAAA;
- addr[0x555] = 0x55555555;
- addr[0xAAA] = 0xA0A0A0A0;
-
- *((vu_long *)dest) = data;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer (0);
- while ((*((vu_long *)dest) & 0x80808080) != (data & 0x80808080)) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
- return (0);
-}
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