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-rw-r--r--board/cpc45/flash.c506
1 files changed, 0 insertions, 506 deletions
diff --git a/board/cpc45/flash.c b/board/cpc45/flash.c
deleted file mode 100644
index 917db34..0000000
--- a/board/cpc45/flash.c
+++ /dev/null
@@ -1,506 +0,0 @@
-/*
- * (C) Copyright 2001-2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <mpc824x.h>
-#include <asm/processor.h>
-
-#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
-
-#define FLASH_BANK_SIZE 0x800000
-#define MAIN_SECT_SIZE 0x40000
-#define PARAM_SECT_SIZE 0x8000
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-static int write_data (flash_info_t * info, ulong dest, ulong * data);
-static void write_via_fpu (vu_long * addr, ulong * data);
-static __inline__ unsigned long get_msr (void);
-static __inline__ void set_msr (unsigned long msr);
-
-/*---------------------------------------------------------------------*/
-#undef DEBUG_FLASH
-
-/*---------------------------------------------------------------------*/
-#ifdef DEBUG_FLASH
-#define DEBUGF(fmt,args...) printf(fmt ,##args)
-#else
-#define DEBUGF(fmt,args...)
-#endif
-/*---------------------------------------------------------------------*/
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init (void)
-{
- int i, j;
- ulong size = 0;
- uchar tempChar;
- vu_long *tmpaddr;
-
- /* Enable flash writes on CPC45 */
-
- tempChar = BOARD_CTRL;
-
- tempChar |= (B_CTRL_FWPT_1 | B_CTRL_FWRE_1);
-
- tempChar &= ~(B_CTRL_FWPT_0 | B_CTRL_FWRE_0);
-
- BOARD_CTRL = tempChar;
-
- __asm__ volatile ("sync\n eieio");
-
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
- vu_long *addr = (vu_long *) (CONFIG_SYS_FLASH_BASE + i * FLASH_BANK_SIZE);
-
- addr[0] = 0x00900090;
-
- __asm__ volatile ("sync\n eieio");
-
- udelay (100);
-
- DEBUGF ("Flash bank # %d:\n"
- "\tManuf. ID @ 0x%08lX: 0x%08lX\n"
- "\tDevice ID @ 0x%08lX: 0x%08lX\n",
- i,
- (ulong) (&addr[0]), addr[0],
- (ulong) (&addr[2]), addr[2]);
-
-
- if ((addr[0] == addr[1]) && (addr[0] == INTEL_MANUFACT) &&
- (addr[2] == addr[3]) && (addr[2] == INTEL_ID_28F160F3T)) {
-
- flash_info[i].flash_id =
- (FLASH_MAN_INTEL & FLASH_VENDMASK) |
- (INTEL_ID_28F160F3T & FLASH_TYPEMASK);
-
- } else if ((addr[0] == addr[1]) && (addr[0] == INTEL_MANUFACT)
- && (addr[2] == addr[3])
- && (addr[2] == INTEL_ID_28F160C3T)) {
-
- flash_info[i].flash_id =
- (FLASH_MAN_INTEL & FLASH_VENDMASK) |
- (INTEL_ID_28F160C3T & FLASH_TYPEMASK);
-
- } else {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- addr[0] = 0xFFFFFFFF;
- goto Done;
- }
-
- DEBUGF ("flash_id = 0x%08lX\n", flash_info[i].flash_id);
-
- addr[0] = 0xFFFFFFFF;
-
- flash_info[i].size = FLASH_BANK_SIZE;
- flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT;
- memset (flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT);
- for (j = 0; j < flash_info[i].sector_count; j++) {
- if (j > 30) {
- flash_info[i].start[j] = CONFIG_SYS_FLASH_BASE +
- i * FLASH_BANK_SIZE +
- (MAIN_SECT_SIZE * 31) + (j -
- 31) *
- PARAM_SECT_SIZE;
- } else {
- flash_info[i].start[j] = CONFIG_SYS_FLASH_BASE +
- i * FLASH_BANK_SIZE +
- j * MAIN_SECT_SIZE;
- }
- }
-
- /* unlock sectors, if 160C3T */
-
- for (j = 0; j < flash_info[i].sector_count; j++) {
- tmpaddr = (vu_long *) flash_info[i].start[j];
-
- if ((flash_info[i].flash_id & FLASH_TYPEMASK) ==
- (INTEL_ID_28F160C3T & FLASH_TYPEMASK)) {
- tmpaddr[0] = 0x00600060;
- tmpaddr[0] = 0x00D000D0;
- tmpaddr[1] = 0x00600060;
- tmpaddr[1] = 0x00D000D0;
- }
- }
-
- size += flash_info[i].size;
-
- addr[0] = 0x00FF00FF;
- addr[1] = 0x00FF00FF;
- }
-
- /* Protect monitor and environment sectors
- */
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE + FLASH_BANK_SIZE
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
- &flash_info[1]);
-#else
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
- &flash_info[0]);
-#endif
-
-#if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CONFIG_ENV_ADDR)
-#if CONFIG_ENV_ADDR >= CONFIG_SYS_FLASH_BASE + FLASH_BANK_SIZE
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[1]);
-#else
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]);
-#endif
-#endif
-
-Done:
- return size;
-}
-
-/*-----------------------------------------------------------------------
- */
-void flash_print_info (flash_info_t * info)
-{
- int i;
-
- switch ((i = info->flash_id & FLASH_VENDMASK)) {
- case (FLASH_MAN_INTEL & FLASH_VENDMASK):
- printf ("Intel: ");
- break;
- default:
- printf ("Unknown Vendor 0x%04x ", i);
- break;
- }
-
- switch ((i = info->flash_id & FLASH_TYPEMASK)) {
- case (INTEL_ID_28F160F3T & FLASH_TYPEMASK):
- printf ("28F160F3T (16Mbit)\n");
- break;
-
- case (INTEL_ID_28F160C3T & FLASH_TYPEMASK):
- printf ("28F160C3T (16Mbit)\n");
- break;
-
- default:
- printf ("Unknown Chip Type 0x%04x\n", i);
- goto Done;
- 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");
-
-Done:
- return;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
- int flag, prot, sect;
- ulong start, now, last;
-
- DEBUGF ("Erase flash bank %d sect %d ... %d\n",
- info - &flash_info[0], s_first, s_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_VENDMASK) !=
- (FLASH_MAN_INTEL & FLASH_VENDMASK)) {
- printf ("Can erase only Intel flash types - 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");
- }
-
- start = get_timer (0);
- last = start;
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- vu_long *addr = (vu_long *) (info->start[sect]);
-
- DEBUGF ("Erase sect %d @ 0x%08lX\n",
- sect, (ulong) addr);
-
- /* Disable interrupts which might cause a timeout
- * here.
- */
- flag = disable_interrupts ();
-
- addr[0] = 0x00500050; /* clear status register */
- addr[0] = 0x00200020; /* erase setup */
- addr[0] = 0x00D000D0; /* erase confirm */
-
- addr[1] = 0x00500050; /* clear status register */
- addr[1] = 0x00200020; /* erase setup */
- addr[1] = 0x00D000D0; /* erase confirm */
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts ();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- while (((addr[0] & 0x00800080) != 0x00800080) ||
- ((addr[1] & 0x00800080) != 0x00800080)) {
- if ((now = get_timer (start)) >
- CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- addr[0] = 0x00B000B0; /* suspend erase */
- addr[0] = 0x00FF00FF; /* to read mode */
- return 1;
- }
-
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
- }
- }
-
- addr[0] = 0x00FF00FF;
- }
- }
- printf (" done\n");
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 4 - Flash not identified
- */
-
-#define FLASH_WIDTH 8 /* flash bus width in bytes */
-
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- ulong wp, cp, msr;
- int l, rc, i;
- ulong data[2];
- ulong *datah = &data[0];
- ulong *datal = &data[1];
-
- DEBUGF ("Flash write_buff: @ 0x%08lx, src 0x%08lx len %ld\n",
- addr, (ulong) src, cnt);
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return 4;
- }
-
- msr = get_msr ();
- set_msr (msr | MSR_FP);
-
- wp = (addr & ~(FLASH_WIDTH - 1)); /* get lower aligned address */
-
- /*
- * handle unaligned start bytes
- */
- if ((l = addr - wp) != 0) {
- *datah = *datal = 0;
-
- for (i = 0, cp = wp; i < l; i++, cp++) {
- if (i >= 4) {
- *datah = (*datah << 8) |
- ((*datal & 0xFF000000) >> 24);
- }
-
- *datal = (*datal << 8) | (*(uchar *) cp);
- }
- for (; i < FLASH_WIDTH && cnt > 0; ++i) {
- char tmp = *src++;
-
- if (i >= 4) {
- *datah = (*datah << 8) |
- ((*datal & 0xFF000000) >> 24);
- }
-
- *datal = (*datal << 8) | tmp;
- --cnt;
- ++cp;
- }
-
- for (; cnt == 0 && i < FLASH_WIDTH; ++i, ++cp) {
- if (i >= 4) {
- *datah = (*datah << 8) |
- ((*datal & 0xFF000000) >> 24);
- }
-
- *datal = (*datah << 8) | (*(uchar *) cp);
- }
-
- if ((rc = write_data (info, wp, data)) != 0) {
- set_msr (msr);
- return (rc);
- }
-
- wp += FLASH_WIDTH;
- }
-
- /*
- * handle FLASH_WIDTH aligned part
- */
- while (cnt >= FLASH_WIDTH) {
- *datah = *(ulong *) src;
- *datal = *(ulong *) (src + 4);
- if ((rc = write_data (info, wp, data)) != 0) {
- set_msr (msr);
- return (rc);
- }
- wp += FLASH_WIDTH;
- cnt -= FLASH_WIDTH;
- src += FLASH_WIDTH;
- }
-
- if (cnt == 0) {
- set_msr (msr);
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- *datah = *datal = 0;
- for (i = 0, cp = wp; i < FLASH_WIDTH && cnt > 0; ++i, ++cp) {
- char tmp = *src++;
-
- if (i >= 4) {
- *datah = (*datah << 8) | ((*datal & 0xFF000000) >>
- 24);
- }
-
- *datal = (*datal << 8) | tmp;
- --cnt;
- }
-
- for (; i < FLASH_WIDTH; ++i, ++cp) {
- if (i >= 4) {
- *datah = (*datah << 8) | ((*datal & 0xFF000000) >>
- 24);
- }
-
- *datal = (*datal << 8) | (*(uchar *) cp);
- }
-
- rc = write_data (info, wp, data);
- set_msr (msr);
-
- return (rc);
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_data (flash_info_t * info, ulong dest, ulong * data)
-{
- vu_long *addr = (vu_long *) dest;
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if (((addr[0] & data[0]) != data[0]) ||
- ((addr[1] & data[1]) != data[1])) {
- return (2);
- }
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
-
- addr[0] = 0x00400040; /* write setup */
- write_via_fpu (addr, data);
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts ();
-
- start = get_timer (0);
-
- while (((addr[0] & 0x00800080) != 0x00800080) ||
- ((addr[1] & 0x00800080) != 0x00800080)) {
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- addr[0] = 0x00FF00FF; /* restore read mode */
- return (1);
- }
- }
-
- addr[0] = 0x00FF00FF; /* restore read mode */
-
- return (0);
-}
-
-/*-----------------------------------------------------------------------
- */
-static void write_via_fpu (vu_long * addr, ulong * data)
-{
- __asm__ __volatile__ ("lfd 1, 0(%0)"::"r" (data));
- __asm__ __volatile__ ("stfd 1, 0(%0)"::"r" (addr));
-}
-
-/*-----------------------------------------------------------------------
- */
-static __inline__ unsigned long get_msr (void)
-{
- unsigned long msr;
-
- __asm__ __volatile__ ("mfmsr %0":"=r" (msr):);
-
- return msr;
-}
-
-static __inline__ void set_msr (unsigned long msr)
-{
- __asm__ __volatile__ ("mtmsr %0"::"r" (msr));
-}
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