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Diffstat (limited to 'board/snmc/qs850/flash.c')
-rw-r--r--board/snmc/qs850/flash.c600
1 files changed, 0 insertions, 600 deletions
diff --git a/board/snmc/qs850/flash.c b/board/snmc/qs850/flash.c
deleted file mode 100644
index 2fc23f2..0000000
--- a/board/snmc/qs850/flash.c
+++ /dev/null
@@ -1,600 +0,0 @@
-/*
- * (C) Copyright 2003
- * MuLogic B.V.
- *
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/ppc4xx.h>
-#include <asm/u-boot.h>
-#include <asm/processor.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-
-#define FLASH_WORD_SIZE unsigned long
-#define FLASH_ID_MASK 0xFFFFFFFF
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-/* stolen from esteem192e/flash.c */
-ulong flash_get_size (volatile FLASH_WORD_SIZE *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, size_b1;
- int i;
- uint pbcr;
- unsigned long base_b0, base_b1;
- volatile FLASH_WORD_SIZE* flash_base;
-
- /* Init: no FLASHes known */
- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- /* Static FLASH Bank configuration here */
- /* Test for 8M Flash first */
- debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_8M_PRELIM);
- flash_base = (volatile FLASH_WORD_SIZE*)(FLASH_BASE0_8M_PRELIM);
- size_b0 = flash_get_size(flash_base, &flash_info[0]);
-
- if (flash_info[0].flash_id == FLASH_UNKNOWN) {
- printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
- size_b0, size_b0<<20);
- return 0;
- }
-
- if (size_b0 < 8*1024*1024) {
- /* Not quite 8M, try 4M Flash base address */
- debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_4M_PRELIM);
- flash_base = (volatile FLASH_WORD_SIZE*)(FLASH_BASE0_4M_PRELIM);
- size_b0 = flash_get_size(flash_base, &flash_info[0]);
- }
-
- if (flash_info[0].flash_id == FLASH_UNKNOWN) {
- printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
- size_b0, size_b0<<20);
- return 0;
- }
-
- /* Only one bank */
- if (CONFIG_SYS_MAX_FLASH_BANKS == 1) {
- /* Setup offsets */
- flash_get_offsets ((ulong)flash_base, &flash_info[0]);
-
- /* Monitor protection ON by default */
- (void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+CONFIG_SYS_MONITOR_LEN-1, &flash_info[0]);
- size_b1 = 0 ;
- flash_info[0].size = size_b0;
- return(size_b0);
- }
-
- /* We have 2 banks */
- size_b1 = flash_get_size(flash_base, &flash_info[1]);
-
- /* Re-do sizing to get full correct info */
- if (size_b1) {
- mtdcr(EBC0_CFGADDR, PB0CR);
- pbcr = mfdcr(EBC0_CFGDATA);
- mtdcr(EBC0_CFGADDR, PB0CR);
- base_b1 = -size_b1;
- pbcr = (pbcr & 0x0001ffff) | base_b1 | (((size_b1/1024/1024)-1)<<17);
- mtdcr(EBC0_CFGDATA, pbcr);
- }
-
- if (size_b0) {
- mtdcr(EBC0_CFGADDR, PB1CR);
- pbcr = mfdcr(EBC0_CFGDATA);
- mtdcr(EBC0_CFGADDR, PB1CR);
- base_b0 = base_b1 - size_b0;
- pbcr = (pbcr & 0x0001ffff) | base_b0 | (((size_b0/1024/1024)-1)<<17);
- mtdcr(EBC0_CFGDATA, pbcr);
- }
-
- size_b0 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b0, &flash_info[0]);
- flash_get_offsets (base_b0, &flash_info[0]);
-
- /* monitor protection ON by default */
- (void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+CONFIG_SYS_MONITOR_LEN-1, &flash_info[0]);
-
- if (size_b1) {
- /* Re-do sizing to get full correct info */
- size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b1, &flash_info[1]);
- flash_get_offsets (base_b1, &flash_info[1]);
-
- /* monitor protection ON by default */
- (void)flash_protect(FLAG_PROTECT_SET, base_b1+size_b1-CONFIG_SYS_MONITOR_LEN,
- base_b1+size_b1-1, &flash_info[1]);
-
- /* monitor protection OFF by default (one is enough) */
- (void)flash_protect(FLAG_PROTECT_CLEAR, base_b0+size_b0-CONFIG_SYS_MONITOR_LEN,
- base_b0+size_b0-1, &flash_info[0]);
- } else {
- flash_info[1].flash_id = FLASH_UNKNOWN;
- flash_info[1].sector_count = -1;
- }
-
- flash_info[0].size = size_b0;
- flash_info[1].size = size_b1;
- return (size_b0 + size_b1);
-}
-
-
-/*-----------------------------------------------------------------------
- This code is specific to the AM29DL163/AM29DL232 for the QS850/QS823.
- */
-
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- int i;
- long large_sect_size;
- long small_sect_size;
-
- /* set up sector start adress table */
- large_sect_size = info->size / (info->sector_count - 8 + 1);
- small_sect_size = large_sect_size / 8;
-
- if (info->flash_id & FLASH_BTYPE) {
-
- /* set sector offsets for bottom boot block type */
- for (i = 0; i < 7; i++) {
- info->start[i] = base;
- base += small_sect_size;
- }
-
- for (; i < info->sector_count; i++) {
- info->start[i] = base;
- base += large_sect_size;
- }
- }
- else
- {
- /* set sector offsets for top boot block type */
- for (i = 0; i < (info->sector_count - 8); i++) {
- info->start[i] = base;
- base += large_sect_size;
- }
-
- for (; i < info->sector_count; i++) {
- info->start[i] = base;
- base += small_sect_size;
- }
- }
-}
-
-/*-----------------------------------------------------------------------
- */
-
-void flash_print_info (flash_info_t *info)
-{
- int i;
- uchar *boottype;
- uchar botboot[]=", bottom boot sect)\n";
- uchar topboot[]=", top boot sector)\n";
-
- 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_SST:
- printf ("SST ");
- break;
- case FLASH_MAN_STM:
- printf ("STM ");
- break;
- case FLASH_MAN_INTEL:
- printf ("INTEL ");
- break;
- default:
- printf ("Unknown Vendor ");
- break;
- }
-
- if (info->flash_id & 0x0001 ) {
- boottype = botboot;
- } else {
- boottype = topboot;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AM160B:
- printf ("AM29LV160B (16 Mbit%s",boottype);
- break;
- case FLASH_AM160T:
- printf ("AM29LV160T (16 Mbit%s",boottype);
- break;
- case FLASH_AMDL163T:
- printf ("AM29DL163T (16 Mbit%s",boottype);
- break;
- case FLASH_AMDL163B:
- printf ("AM29DL163B (16 Mbit%s",boottype);
- break;
- case FLASH_AM320B:
- printf ("AM29LV320B (32 Mbit%s",boottype);
- break;
- case FLASH_AM320T:
- printf ("AM29LV320T (32 Mbit%s",boottype);
- break;
- case FLASH_AMDL323T:
- printf ("AM29DL323T (32 Mbit%s",boottype);
- break;
- case FLASH_AMDL323B:
- printf ("AM29DL323B (32 Mbit%s",boottype);
- break;
- case FLASH_AMDL322T:
- printf ("AM29DL322T (32 Mbit%s",boottype);
- 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");
- return;
-}
-
-
-/*-----------------------------------------------------------------------
- * The following code cannot be run from FLASH!
- */
-ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info)
-{
- short i;
- ulong base = (ulong)addr;
- FLASH_WORD_SIZE value;
-
- /* Write auto select command: read Manufacturer ID */
-
- /*
- * Note: if it is an AMD flash and the word at addr[0000]
- * is 0x00890089 this routine will think it is an Intel
- * flash device and may(most likely) cause trouble.
- */
-
- addr[0x0000] = 0x00900090;
- if(addr[0x0000] != 0x00890089){
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
- addr[0x0555] = 0x00900090;
- }
- value = addr[0];
-
- switch (value) {
- case (AMD_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_AMD;
- break;
- case (FUJ_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_FUJ;
- break;
- case (STM_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_STM;
- break;
- case (SST_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_SST;
- break;
- case (INTEL_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_INTEL;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
- value = addr[1]; /* device ID */
-
- switch (value) {
- case (AMD_ID_LV160T & FLASH_ID_MASK):
- info->flash_id += FLASH_AM160T;
- info->sector_count = 35;
- info->size = 0x00400000;
- break; /* => 4 MB */
-
- case (AMD_ID_LV160B & FLASH_ID_MASK):
- info->flash_id += FLASH_AM160B;
- info->sector_count = 35;
- info->size = 0x00400000;
- break; /* => 4 MB */
-
- case (AMD_ID_DL163T & FLASH_ID_MASK):
- info->flash_id += FLASH_AMDL163T;
- info->sector_count = 39;
- info->size = 0x00400000;
- break; /* => 4 MB */
-
- case (AMD_ID_DL163B & FLASH_ID_MASK):
- info->flash_id += FLASH_AMDL163B;
- info->sector_count = 39;
- info->size = 0x00400000;
- break; /* => 4 MB */
-
- case (AMD_ID_DL323T & FLASH_ID_MASK):
- info->flash_id += FLASH_AMDL323T;
- info->sector_count = 71;
- info->size = 0x00800000;
- break; /* => 8 MB */
-
- case (AMD_ID_DL323B & FLASH_ID_MASK):
- info->flash_id += FLASH_AMDL323B;
- info->sector_count = 71;
- info->size = 0x00800000;
- break; /* => 8 MB */
-
- case (AMD_ID_DL322T & FLASH_ID_MASK):
- info->flash_id += FLASH_AMDL322T;
- info->sector_count = 71;
- info->size = 0x00800000;
- break; /* => 8 MB */
-
- default:
- /* FIXME*/
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
- }
-
- flash_get_offsets(base, info);
-
- /* 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 FLASH_WORD_SIZE *)(info->start[i]);
- info->protect[i] = addr[2] & 1;
- }
-
- /*
- * Prevent writes to uninitialized FLASH.
- */
- if (info->flash_id != FLASH_UNKNOWN) {
- addr = (volatile FLASH_WORD_SIZE *)info->start[0];
- *addr = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
- }
-
- return (info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- volatile FLASH_WORD_SIZE *addr=(volatile FLASH_WORD_SIZE*)(info->start[0]);
- int flag, prot, sect, l_sect;
- ulong start, now, last;
- int rcode = 0;
-
- 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 - aborted\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");
- }
-
- l_sect = -1;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
- addr[0x0555] = 0x00800080;
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr = (volatile FLASH_WORD_SIZE *)(info->start[sect]);
- addr[0] = (0x00300030 & FLASH_ID_MASK);
- 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 = (volatile FLASH_WORD_SIZE*)(info->start[l_sect]);
- while ((addr[0] & (0x00800080&FLASH_ID_MASK)) !=
- (0x00800080&FLASH_ID_MASK) )
- {
- 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 */
- serial_putc ('.');
- last = now;
- }
- }
-
-DONE:
- /* reset to read mode */
- addr = (volatile FLASH_WORD_SIZE *)info->start[0];
- addr[0] = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
-
- printf (" done\n");
- return rcode;
-}
-
-/*-----------------------------------------------------------------------
- * 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 l;
- int i, 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();
-
- /* AMD stuff */
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
- addr[0x0555] = 0x00A000A0;
-
- *((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) & 0x00800080) != (data & 0x00800080)) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
-
- return (0);
-}
generated by cgit v1.1 at 2024-11-05 18:54:06 +0000