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-rw-r--r--board/cogent/flash.c633
1 files changed, 0 insertions, 633 deletions
diff --git a/board/cogent/flash.c b/board/cogent/flash.c
deleted file mode 100644
index 1da8f10..0000000
--- a/board/cogent/flash.c
+++ /dev/null
@@ -1,633 +0,0 @@
-/*
- * (C) Copyright 2000
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include "flash.h"
-#include <linux/compiler.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-#if defined(CONFIG_ENV_IS_IN_FLASH)
-# ifndef CONFIG_ENV_ADDR
-# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
-# endif
-# ifndef CONFIG_ENV_SIZE
-# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
-# endif
-# ifndef CONFIG_ENV_SECT_SIZE
-# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE
-# endif
-#endif
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static int write_word (flash_info_t *info, ulong dest, ulong data);
-
-/*-----------------------------------------------------------------------
- */
-
-
-#if defined(CONFIG_CMA302)
-
-/*
- * probe for the existence of flash at address "addr"
- * 0 = yes, 1 = bad Manufacturer's Id, 2 = bad Device Id
- */
-static int
-c302f_probe_word(c302f_addr_t addr)
-{
- /* reset the flash */
- *addr = C302F_BNK_CMD_RST;
-
- /* check the manufacturer id */
- *addr = C302F_BNK_CMD_RD_ID;
- if (*C302F_BNK_ADDR_MAN(addr) != C302F_BNK_RD_ID_MAN)
- return 1;
-
- /* check the device id */
- *addr = C302F_BNK_CMD_RD_ID;
- if (*C302F_BNK_ADDR_DEV(addr) != C302F_BNK_RD_ID_DEV)
- return 2;
-
-#ifdef FLASH_DEBUG
- {
- int i;
-
- printf("\nMaster Lock Config = 0x%08lx\n",
- *C302F_BNK_ADDR_CFGM(addr));
- for (i = 0; i < C302F_BNK_NBLOCKS; i++)
- printf("Block %2d Lock Config = 0x%08lx\n",
- i, *C302F_BNK_ADDR_CFG(i, addr));
- }
-#endif
-
- /* reset the flash again */
- *addr = C302F_BNK_CMD_RST;
-
- return 0;
-}
-
-/*
- * probe for Cogent CMA302 flash module at address "base" and store
- * info for any found into flash_info entry "fip". Must find at least
- * one bank.
- */
-static void
-c302f_probe(flash_info_t *fip, c302f_addr_t base)
-{
- c302f_addr_t addr, eaddr;
- int nbanks;
-
- fip->size = 0L;
- fip->sector_count = 0;
-
- addr = base;
- eaddr = C302F_BNK_ADDR_BASE(addr, C302F_MAX_BANKS);
- nbanks = 0;
-
- while (addr < eaddr) {
- c302f_addr_t addrw, eaddrw, addrb;
- int i, osc, nsc;
-
- addrw = addr;
- eaddrw = C302F_BNK_ADDR_NEXT_WORD(addrw);
-
- while (addrw < eaddrw)
- if (c302f_probe_word(addrw++) != 0)
- goto out;
-
- /* bank exists - append info for this bank to *fip */
- fip->flash_id = FLASH_MAN_INTEL|FLASH_28F008S5;
- fip->size += C302F_BNK_SIZE;
- osc = fip->sector_count;
- fip->sector_count += C302F_BNK_NBLOCKS;
- if ((nsc = fip->sector_count) >= CONFIG_SYS_MAX_FLASH_SECT)
- panic("Too many sectors in flash at address 0x%08lx\n",
- (unsigned long)base);
-
- addrb = addr;
- for (i = osc; i < nsc; i++) {
- fip->start[i] = (ulong)addrb;
- fip->protect[i] = 0;
- addrb = C302F_BNK_ADDR_NEXT_BLK(addrb);
- }
-
- addr = C302F_BNK_ADDR_NEXT_BNK(addr);
- nbanks++;
- }
-
-out:
- if (nbanks == 0)
- panic("ERROR: no flash found at address 0x%08lx\n",
- (unsigned long)base);
-}
-
-static void
-c302f_reset(flash_info_t *info, int sect)
-{
- c302f_addr_t addrw, eaddrw;
-
- addrw = (c302f_addr_t)info->start[sect];
- eaddrw = C302F_BNK_ADDR_NEXT_WORD(addrw);
-
- while (addrw < eaddrw) {
-#ifdef FLASH_DEBUG
- printf(" writing reset cmd to addr 0x%08lx\n",
- (unsigned long)addrw);
-#endif
- *addrw = C302F_BNK_CMD_RST;
- addrw++;
- }
-}
-
-static void
-c302f_erase_init(flash_info_t *info, int sect)
-{
- c302f_addr_t addrw, saddrw, eaddrw;
- int flag;
-
-#ifdef FLASH_DEBUG
- printf("0x%08lx C302F_BNK_CMD_PROG\n", C302F_BNK_CMD_PROG);
- printf("0x%08lx C302F_BNK_CMD_ERASE1\n", C302F_BNK_CMD_ERASE1);
- printf("0x%08lx C302F_BNK_CMD_ERASE2\n", C302F_BNK_CMD_ERASE2);
- printf("0x%08lx C302F_BNK_CMD_CLR_STAT\n", C302F_BNK_CMD_CLR_STAT);
- printf("0x%08lx C302F_BNK_CMD_RST\n", C302F_BNK_CMD_RST);
- printf("0x%08lx C302F_BNK_STAT_RDY\n", C302F_BNK_STAT_RDY);
- printf("0x%08lx C302F_BNK_STAT_ERR\n", C302F_BNK_STAT_ERR);
-#endif
-
- saddrw = (c302f_addr_t)info->start[sect];
- eaddrw = C302F_BNK_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 = C302F_BNK_CMD_ERASE1;
- *addrw = C302F_BNK_CMD_ERASE2;
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-}
-
-static int
-c302f_erase_poll(flash_info_t *info, int sect)
-{
- c302f_addr_t addrw, saddrw, eaddrw;
- int sectdone, haderr;
-
- saddrw = (c302f_addr_t)info->start[sect];
- eaddrw = C302F_BNK_ADDR_NEXT_WORD(saddrw);
-
- sectdone = 1;
- haderr = 0;
-
- for (addrw = saddrw; addrw < eaddrw; addrw++) {
- c302f_word_t stat = *addrw;
-
-#ifdef FLASH_DEBUG
- printf(" checking status at addr "
- "0x%08lx [0x%08lx]\n",
- (unsigned long)addrw, stat);
-#endif
- if ((stat & C302F_BNK_STAT_RDY) != C302F_BNK_STAT_RDY)
- sectdone = 0;
- else if ((stat & C302F_BNK_STAT_ERR) != 0) {
- printf(" failed on sector %d "
- "(stat = 0x%08lx) at "
- "address 0x%08lx\n",
- sect, stat,
- (unsigned long)addrw);
- *addrw = C302F_BNK_CMD_CLR_STAT;
- haderr = 1;
- }
- }
-
- if (haderr)
- return (-1);
- else
- return (sectdone);
-}
-
-static int
-c302f_write_word(c302f_addr_t addr, c302f_word_t value)
-{
- c302f_word_t stat;
- ulong start;
- int flag, retval;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *addr = C302F_BNK_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 & C302F_BNK_STAT_RDY) != C302F_BNK_STAT_RDY);
-
- if ((stat & C302F_BNK_STAT_ERR) != 0) {
- printf("flash program failed (stat = 0x%08lx) "
- "at address 0x%08lx\n", (ulong)stat, (ulong)addr);
- *addr = C302F_BNK_CMD_CLR_STAT;
- retval = 3;
- }
-
-done:
- /* reset to read mode */
- *addr = C302F_BNK_CMD_RST;
-
- return (retval);
-}
-
-#endif /* CONFIG_CMA302 */
-
-unsigned long
-flash_init(void)
-{
- unsigned long total;
- int i;
- __maybe_unused flash_info_t *fip;
-
- /* Init: no FLASHes known */
- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- fip = &flash_info[0];
- total = 0L;
-
-#if defined(CONFIG_CMA302)
- c302f_probe(fip, (c302f_addr_t)CONFIG_SYS_FLASH_BASE);
- total += fip->size;
- fip++;
-#endif
-
-#if (CMA_MB_CAPS & CMA_MB_CAP_FLASH)
- /* not yet ...
- cmbf_probe(fip, (cmbf_addr_t)CMA_MB_FLASH_BASE);
- total += fip->size;
- fip++;
- */
-#endif
-
- /*
- * protect monitor and environment sectors
- */
-
-#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[0]);
-#endif
-
-#ifdef CONFIG_ENV_IS_IN_FLASH
- /* ENV protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1,
- &flash_info[0]);
-#endif
- return total;
-}
-
-/*-----------------------------------------------------------------------
- */
-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_INTEL: printf ("INTEL "); break;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_28F008S5: printf ("28F008S5\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 % 4) == 0)
- printf ("\n ");
- printf (" %2d - %08lX%s", i,
- info->start[i],
- info->protect[i] ? " (RO)" : " "
- );
- }
- printf ("\n");
- return;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-
-/*-----------------------------------------------------------------------
- */
-
-/*
- * The following code cannot be run from FLASH!
- */
-
-int
-flash_erase(flash_info_t *info, int s_first, int s_last)
-{
- int prot, sect, haderr;
- ulong start, now, last;
- void (*erase_init)(flash_info_t *, int);
- int (*erase_poll)(flash_info_t *, int);
- void (*reset)(flash_info_t *, int);
- int rcode = 0;
-
-#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;
- }
-
- switch (info->flash_id) {
-
-#if defined(CONFIG_CMA302)
- case FLASH_MAN_INTEL|FLASH_28F008S5:
- erase_init = c302f_erase_init;
- erase_poll = c302f_erase_poll;
- reset = c302f_reset;
- break;
-#endif
-
-#if (CMA_MB_CAPS & CMA_MB_CAP_FLASH)
- case FLASH_MAN_INTEL|FLASH_28F800_B:
- case FLASH_MAN_AMD|FLASH_AM29F800B:
- /* not yet ...
- erase_init = cmbf_erase_init;
- erase_poll = cmbf_erase_poll;
- reset = cmbf_reset;
- break;
- */
-#endif
-
- default:
- printf ("Flash type %08lx not supported - 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 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;
-
- (*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 = (*erase_poll)(info, sect);
-
- if (sectdone < 0) {
- haderr = 1;
- break;
- }
-
- } while (!sectdone);
-
- if (haderr)
- break;
- }
- }
-
- if (haderr > 0) {
- printf (" failed\n");
- rcode = 1;
- }
- else
- printf (" done\n");
-
- /* reset to read mode */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- (*reset)(info, sect);
- }
- }
- return rcode;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 3 - write error
- */
-
-int
-write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- ulong cp, wp, data;
- int i, l, rc;
- ulong start, now, last;
-
- 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
- */
- start = get_timer (0);
- last = 0;
- 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;
-
- /* show that we're waiting */
- now = get_timer(start);
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
- }
- }
-
- 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
- * 3 - write error
- */
-static int
-write_word(flash_info_t *info, ulong dest, ulong data)
-{
- int retval;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*(ulong *)dest & data) != data) {
- return (2);
- }
-
- switch (info->flash_id) {
-
-#if defined(CONFIG_CMA302)
- case FLASH_MAN_INTEL|FLASH_28F008S5:
- retval = c302f_write_word((c302f_addr_t)dest, (c302f_word_t)data);
- break;
-#endif
-
-#if (CMA_MB_CAPS & CMA_MB_CAP_FLASH)
- case FLASH_MAN_INTEL|FLASH_28F800_B:
- case FLASH_MAN_AMD|FLASH_AM29F800B:
- /* not yet ...
- retval = cmbf_write_word((cmbf_addr_t)dest, (cmbf_word_t)data);
- */
- retval = 3;
- break;
-#endif
-
- default:
- printf ("Flash type %08lx not supported - aborted\n",
- info->flash_id);
- retval = 3;
- break;
- }
-
- return (retval);
-}
-
-/*-----------------------------------------------------------------------
- */
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