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-rw-r--r--board/eltec/mhpc/flash.c414
1 files changed, 0 insertions, 414 deletions
diff --git a/board/eltec/mhpc/flash.c b/board/eltec/mhpc/flash.c
deleted file mode 100644
index ad89df92cf..0000000000
--- a/board/eltec/mhpc/flash.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <mpc8xx.h>
-#include <linux/byteorder/swab.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * Protection Flags:
- */
-#define FLAG_PROTECT_SET 0x01
-#define FLAG_PROTECT_CLEAR 0x02
-
-/* Board support for 1 or 2 flash devices */
-#undef FLASH_PORT_WIDTH32
-#define FLASH_PORT_WIDTH16
-
-#ifdef FLASH_PORT_WIDTH16
-#define FLASH_PORT_WIDTH ushort
-#define FLASH_PORT_WIDTHV vu_short
-#define SWAP(x) __swab16(x)
-#else
-#define FLASH_PORT_WIDTH ulong
-#define FLASH_PORT_WIDTHV vu_long
-#define SWAP(x) __swab32(x)
-#endif
-
-#define FPW FLASH_PORT_WIDTH
-#define FPWV FLASH_PORT_WIDTHV
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size (FPW *addr, flash_info_t *info);
-static int write_data (flash_info_t *info, ulong dest, FPW data);
-static void flash_get_offsets (ulong base, flash_info_t *info);
-
-/*-----------------------------------------------------------------------
- */
-
-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;
- int i;
-
- /* 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 - FIXME XXX */
- size_b0 = flash_get_size((FPW *)FLASH_BASE0_PRELIM, &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);
- }
-
- /* Remap FLASH according to real size */
- memctl->memc_or0 = CONFIG_SYS_OR_TIMING_FLASH | (-size_b0 & 0xFFFF8000);
- memctl->memc_br0 = (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) | BR_PS_16 | BR_MS_GPCM | BR_V;
-
- /* Re-do sizing to get full correct info */
- size_b0 = flash_get_size((FPW *)CONFIG_SYS_FLASH_BASE, &flash_info[0]);
-
- flash_get_offsets (CONFIG_SYS_FLASH_BASE, &flash_info[0]);
-
- /* monitor protection ON by default */
- (void)flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_FLASH_BASE,
- CONFIG_SYS_FLASH_BASE+monitor_flash_len-1,
- &flash_info[0]);
-
- flash_info[0].size = size_b0;
-
- return (size_b0);
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- int i;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return;
- }
-
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = base + (i * 0x00020000);
- }
- }
-}
-
-/*-----------------------------------------------------------------------
- */
-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_28F640J5 :
- printf ("28F640J5 \n"); break;
- default: printf ("Unknown Chip Type=0x%lXh\n",
- info->flash_id & FLASH_TYPEMASK); 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 ulong flash_get_size (FPW *addr, flash_info_t *info)
-{
- FPW value;
-
- /* Write auto select command: read Manufacturer ID */
- addr[0x5555] = (FPW)0xAA00AA00;
- addr[0x2AAA] = (FPW)0x55005500;
- addr[0x5555] = (FPW)0x90009000;
-
- value = SWAP(addr[0]);
-
- switch (value) {
- case (FPW)INTEL_MANUFACT:
- info->flash_id = FLASH_MAN_INTEL;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- addr[0] = (FPW)0xFF00FF00; /* restore read mode */
- return (0); /* no or unknown flash */
- }
-
- value = SWAP(addr[1]); /* device ID no swap !*/
-
- switch (value) {
- case (FPW)INTEL_ID_28F640J5 :
- info->flash_id += FLASH_28F640J5 ;
- info->sector_count = 64;
- info->size = 0x00800000;
- break; /* => 8 MB */
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- break;
- }
-
- if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) {
- printf ("** ERROR: sector count %d > max (%d) **\n",
- info->sector_count, CONFIG_SYS_MAX_FLASH_SECT);
- info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
- }
-
- addr[0] = (FPW)0xFF00FF00; /* restore read mode */
-
- return (info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- int flag, prot, sect;
- ulong type, start, now, last;
- int rc = 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;
- }
-
- type = (info->flash_id & FLASH_VENDMASK);
- if ((type != FLASH_MAN_INTEL)) {
- 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");
- }
-
- 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 */
- FPWV *addr = (FPWV *)(info->start[sect]);
- FPW status;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *addr = (FPW)0x50005000; /* clear status register */
- *addr = (FPW)0x20002000; /* erase setup */
- *addr = (FPW)0xD000D000; /* erase confirm */
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- while (((status = SWAP(*addr)) & (FPW)0x00800080) != (FPW)0x00800080) {
- if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- *addr = (FPW)0xB000B000; /* suspend erase */
- *addr = (FPW)0xFF00FF00; /* reset to read mode */
- rc = 1;
- break;
- }
-
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
- }
- }
-
- *addr = (FPW)0xFF00FF00; /* reset to read mode */
- printf (" done\n");
- }
- }
- return rc;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 4 - Flash not identified
- */
-
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- ulong cp, wp;
- FPW data;
- int i, l, rc, port_width;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return 4;
- }
-/* get lower word aligned address */
-#ifdef FLASH_PORT_WIDTH16
- wp = (addr & ~1);
- port_width = 2;
-#else
- wp = (addr & ~3);
- port_width = 4;
-#endif
-
- /*
- * 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<port_width && cnt>0; ++i) {
- data = (data << 8) | *src++;
- --cnt;
- ++cp;
- }
- for (; cnt==0 && i<port_width; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- if ((rc = write_data(info, wp, data)) != 0) {
- return (rc);
- }
- wp += port_width;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= port_width) {
- data = 0;
- for (i=0; i<port_width; ++i) {
- data = (data << 8) | *src++;
- }
- if ((rc = write_data(info, wp, data)) != 0) {
- return (rc);
- }
- wp += port_width;
- cnt -= port_width;
- if ((wp & 0xfff) == 0)
- {
- printf("%08lX",wp);
- printf("\x1b[8D");
- }
- }
-
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<port_width && cnt>0; ++i, ++cp) {
- data = (data << 8) | *src++;
- --cnt;
- }
- for (; i<port_width; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- return (write_data(info, wp, data));
-}
-
-/*-----------------------------------------------------------------------
- * Write a word or halfword to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_data (flash_info_t *info, ulong dest, FPW data)
-{
- FPWV *addr = (FPWV *)dest;
- ulong status;
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*addr & data) != data) {
- printf("not erased at %08lx (%x)\n",(ulong)addr,*addr);
- return (2);
- }
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *addr = (FPW)0x40004000; /* write setup */
- *addr = data;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- start = get_timer (0);
-
- while (((status = SWAP(*addr)) & (FPW)0x00800080) != (FPW)0x00800080) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- *addr = (FPW)0xFF00FF00; /* restore read mode */
- return (1);
- }
- }
-
- *addr = (FPW)0xFF00FF00; /* restore read mode */
-
- return (0);
-}
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