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Diffstat (limited to 'board/LEOX/elpt860/flash.c')
-rw-r--r--board/LEOX/elpt860/flash.c602
1 files changed, 0 insertions, 602 deletions
diff --git a/board/LEOX/elpt860/flash.c b/board/LEOX/elpt860/flash.c
deleted file mode 100644
index 0377c8970c..0000000000
--- a/board/LEOX/elpt860/flash.c
+++ /dev/null
@@ -1,602 +0,0 @@
-/*
-**=====================================================================
-**
-** Copyright (C) 2000, 2001, 2002, 2003
-** The LEOX team <team@leox.org>, http://www.leox.org
-**
-** LEOX.org is about the development of free hardware and software resources
-** for system on chip.
-**
-** Description: U-Boot port on the LEOX's ELPT860 CPU board
-** ~~~~~~~~~~~
-**
-**=====================================================================
-**
- * SPDX-License-Identifier: GPL-2.0+
-**
-**=====================================================================
-*/
-
-/*
-** Note 1: In this file, you have to provide the following variable:
-** ------
-** flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]
-** 'flash_info_t' structure is defined into 'include/flash.h'
-** and defined as extern into 'common/cmd_flash.c'
-**
-** Note 2: In this file, you have to provide the following functions:
-** ------
-** unsigned long flash_init(void)
-** called from 'board_init_r()' into 'common/board.c'
-**
-** void flash_print_info(flash_info_t *info)
-** called from 'do_flinfo()' into 'common/cmd_flash.c'
-**
-** int flash_erase(flash_info_t *info,
-** int s_first,
-** int s_last)
-** called from 'do_flerase()' & 'flash_sect_erase()' into 'common/cmd_flash.c'
-**
-** int write_buff (flash_info_t *info,
-** uchar *src,
-** ulong addr,
-** ulong cnt)
-** called from 'flash_write()' into 'common/cmd_flash.c'
-*/
-
-#include <common.h>
-#include <mpc8xx.h>
-
-
-#ifndef CONFIG_ENV_ADDR
-# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
-#endif
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * Internal Functions
- */
-static void flash_get_offsets (ulong base, flash_info_t *info);
-static ulong flash_get_size (volatile unsigned char *addr, flash_info_t *info);
-
-static int write_word (flash_info_t *info, ulong dest, ulong data);
-static int write_byte (flash_info_t *info, ulong dest, uchar data);
-
-/*-----------------------------------------------------------------------
- */
-
-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 ((volatile unsigned char *)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 & OR_AM_MSK);
- memctl->memc_br0 = (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_PS_8 | BR_V;
-
- /* Re-do sizing to get full correct info */
- size_b0 = flash_get_size ((volatile unsigned char *)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
- /* monitor protection ON by default */
- 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_SIZE-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;
-
-#define SECTOR_64KB 0x00010000
-
- /* set up sector start adress table */
- for (i = 0; i < info->sector_count; i++)
- {
- info->start[i] = base + (i * SECTOR_64KB);
- }
-}
-
-/*-----------------------------------------------------------------------
- */
-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;
- case FLASH_MAN_STM: printf ("STM (Thomson) "); break;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch ( info->flash_id & FLASH_TYPEMASK )
- {
- case FLASH_AM040: printf ("AM29F040 (4 Mbits)\n");
- break;
- default: printf ("Unknown Chip Type\n");
- break;
- }
-
- printf (" Size: %ld KB in %d Sectors\n",
- info->size >> 10, 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!
- */
-
-static ulong
-flash_get_size (volatile unsigned char *addr,
- flash_info_t *info)
-{
- short i;
- uchar value;
- ulong base = (ulong)addr;
-
- /* Write auto select command: read Manufacturer ID */
- addr[0x0555] = 0xAA;
- addr[0x02AA] = 0x55;
- addr[0x0555] = 0x90;
-
- value = addr[0];
-
- switch ( value )
- {
- /* case AMD_MANUFACT: */
- case 0x01:
- info->flash_id = FLASH_MAN_AMD;
- break;
- /* case FUJ_MANUFACT: */
- case 0x04:
- info->flash_id = FLASH_MAN_FUJ;
- break;
- /* case STM_MANUFACT: */
- case 0x20:
- info->flash_id = FLASH_MAN_STM;
- 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 STM_ID_F040B:
- case AMD_ID_F040B:
- info->flash_id += FLASH_AM040; /* 4 Mbits = 512k * 8 */
- info->sector_count = 8;
- info->size = 0x00080000;
- break;
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
- }
-
- /* set up sector start adress table */
- for (i = 0; i < info->sector_count; i++)
- {
- info->start[i] = base + (i * 0x00010000);
- }
-
- /* 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 char *)(info->start[i]);
- info->protect[i] = addr[2] & 1;
- }
-
- /*
- * Prevent writes to uninitialized FLASH.
- */
- if ( info->flash_id != FLASH_UNKNOWN )
- {
- addr = (volatile unsigned char *)info->start[0];
-
- *addr = 0xF0; /* reset bank */
- }
-
- return (info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-int
-flash_erase (flash_info_t *info,
- int s_first,
- int s_last)
-{
- volatile unsigned char *addr = (volatile unsigned char *)(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[0x0555] = 0xAA;
- addr[0x02AA] = 0x55;
- addr[0x0555] = 0x80;
- addr[0x0555] = 0xAA;
- addr[0x02AA] = 0x55;
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++)
- {
- if (info->protect[sect] == 0) /* not protected */
- {
- addr = (volatile unsigned char *)(info->start[sect]);
- addr[0] = 0x30;
- 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 unsigned char *)(info->start[l_sect]);
- while ( (addr[0] & 0x80) != 0x80 )
- {
- 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 = (volatile unsigned char *)info->start[0];
- addr[0] = 0xF0; /* 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;
- uchar bdata;
- int i, l, rc;
-
- if ( (info->flash_id & FLASH_TYPEMASK) == FLASH_AM040 )
- {
- /* Width of the data bus: 8 bits */
-
- wp = addr;
-
- while ( cnt )
- {
- bdata = *src++;
-
- if ( (rc = write_byte(info, wp, bdata)) != 0 )
- {
- return (rc);
- }
-
- ++wp;
- --cnt;
- }
-
- return ( 0 );
- }
- else
- {
- /* Width of the data bus: 32 bits */
-
- 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[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);
-}
-
-/*-----------------------------------------------------------------------
- * Write a byte to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int
-write_byte (flash_info_t *info,
- ulong dest,
- uchar data)
-{
- volatile unsigned char *addr = (volatile unsigned char *)(info->start[0]);
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ( (*((volatile unsigned char *)dest) & data) != data )
- {
- return (2);
- }
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr[0x0555] = 0xAA;
- addr[0x02AA] = 0x55;
- addr[0x0555] = 0xA0;
-
- *((volatile unsigned char *)dest) = data;
-
- /* re-enable interrupts if necessary */
- if ( flag )
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer (0);
- while ( (*((volatile unsigned char *)dest) & 0x80) != (data & 0x80) )
- {
- if ( get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT )
- {
- return (1);
- }
- }
-
- return (0);
-}
-
-/*-----------------------------------------------------------------------
- */
generated by cgit (git 2.34.1) at 2024-12-26 15:23:10 +0000