* 'master' of git://git.denx.de/u-boot-ppc4xx: board/mpl/pati: use the CFI driver for the PATI board board/mpl/mip405: use the CFI driver for the MIP405/MIP405T board board/mpl/pip405: use the CFI driver for the PIP405 board board/mpl/common: remove the old legacy flash ppc4xx: Setup HICB on Io64master
Wolfgang Denk
13 years ago
commit
c30186c60a
@ -1,872 +0,0 @@ |
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/*
|
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* (C) Copyright 2000, 2001 |
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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|
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/*
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* Modified 4/5/2001 |
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* Wait for completion of each sector erase command issued |
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* 4/5/2001 |
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* Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com |
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*/ |
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|
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/*
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* Modified 3/7/2001 |
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* - adapted for pip405, Denis Peter, MPL AG Switzerland |
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* TODO: |
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* clean-up |
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*/ |
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|
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#include <common.h> |
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#if !defined(CONFIG_PATI) |
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#include <asm/ppc4xx.h> |
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#include <asm/processor.h> |
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#include "common_util.h" |
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#if defined(CONFIG_MIP405) |
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#include "../mip405/mip405.h" |
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#endif |
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#if defined(CONFIG_PIP405) |
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#include "../pip405/pip405.h" |
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#endif |
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#include <asm/4xx_pci.h> |
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#else /* defined(CONFIG_PATI) */ |
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#include <mpc5xx.h> |
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#endif |
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|
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flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ |
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/*-----------------------------------------------------------------------
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* Functions |
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*/ |
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static ulong flash_get_size (vu_long *addr, flash_info_t *info); |
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static int write_word (flash_info_t *info, ulong dest, ulong data); |
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void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt); |
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|
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#define ADDR0 0x5555 |
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#define ADDR1 0x2aaa |
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#define FLASH_WORD_SIZE unsigned short |
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#define FALSE 0 |
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#define TRUE 1 |
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#if !defined(CONFIG_PATI) |
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|
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/*-----------------------------------------------------------------------
|
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* Some CS switching routines: |
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* |
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* On PIP/MIP405 we have 3 (4) possible boot mode |
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* |
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* - Boot from Flash (Flash CS = CS0, MPS CS = CS1) |
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* - Boot from MPS (Flash CS = CS1, MPS CS = CS0) |
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* - Boot from PCI with Flash map (Flash CS = CS0, MPS CS = CS1) |
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* - Boot from PCI with MPS map (Flash CS = CS1, MPS CS = CS0) |
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* The flash init is the first board specific routine which is called |
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* after code relocation (running from SDRAM) |
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* The first thing we do is to map the Flash CS to the Flash area and |
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* the MPS CS to the MPS area. Since the flash size is unknown at this |
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* point, we use the max flash size and the lowest flash address as base. |
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* |
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* After flash detection we adjust the size of the CS area accordingly. |
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* The board_init_r will fill in wrong values in the board init structure, |
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* but this will be fixed in the misc_init_r routine: |
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* bd->bi_flashstart=0-flash_info[0].size |
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* bd->bi_flashsize=flash_info[0].size-CONFIG_SYS_MONITOR_LEN |
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* bd->bi_flashoffset=0 |
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* |
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*/ |
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int get_boot_mode(void) |
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{ |
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unsigned long pbcr; |
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int res = 0; |
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pbcr = mfdcr (CPC0_PSR); |
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if ((pbcr & PSR_ROM_WIDTH_MASK) == 0) |
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/* boot via MPS or MPS mapping */ |
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res = BOOT_MPS; |
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if(pbcr & PSR_ROM_LOC) |
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/* boot via PCI.. */ |
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res |= BOOT_PCI; |
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return res; |
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} |
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|
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/* Map the flash high (in boot area)
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This code can only be executed from SDRAM (after relocation). |
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*/ |
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void setup_cs_reloc(void) |
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{ |
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int mode; |
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/* Since we are relocated, we can set-up the CS finaly
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* but first of all, switch off PCI mapping (in case it was a PCI boot) */ |
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out32r(PMM0MA,0L); |
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icache_enable (); /* we are relocated */ |
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/* get boot mode */ |
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mode=get_boot_mode(); |
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/* we map the flash high in every case */ |
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/* first findout on which cs the flash is */ |
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if(mode & BOOT_MPS) { |
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/* map flash high on CS1 and MPS on CS0 */ |
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mtdcr (EBC0_CFGADDR, PB0AP); |
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mtdcr (EBC0_CFGDATA, MPS_AP); |
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mtdcr (EBC0_CFGADDR, PB0CR); |
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mtdcr (EBC0_CFGDATA, MPS_CR); |
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/* we use the default values (max values) for the flash
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* because its real size is not yet known */ |
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mtdcr (EBC0_CFGADDR, PB1AP); |
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mtdcr (EBC0_CFGDATA, FLASH_AP); |
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mtdcr (EBC0_CFGADDR, PB1CR); |
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mtdcr (EBC0_CFGDATA, FLASH_CR_B); |
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} |
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else { |
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/* map flash high on CS0 and MPS on CS1 */ |
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mtdcr (EBC0_CFGADDR, PB1AP); |
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mtdcr (EBC0_CFGDATA, MPS_AP); |
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mtdcr (EBC0_CFGADDR, PB1CR); |
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mtdcr (EBC0_CFGDATA, MPS_CR); |
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/* we use the default values (max values) for the flash
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* because its real size is not yet known */ |
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mtdcr (EBC0_CFGADDR, PB0AP); |
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mtdcr (EBC0_CFGDATA, FLASH_AP); |
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mtdcr (EBC0_CFGADDR, PB0CR); |
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mtdcr (EBC0_CFGDATA, FLASH_CR_B); |
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} |
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} |
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#endif /* #if !defined(CONFIG_PATI) */ |
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unsigned long flash_init (void) |
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{ |
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unsigned long size_b0; |
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int i; |
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#if !defined(CONFIG_PATI) |
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unsigned long flashcr,size_reg; |
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int mode; |
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extern char version_string; |
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char *p = &version_string; |
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|
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/* Since we are relocated, we can set-up the CS finally */ |
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setup_cs_reloc(); |
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/* get and display boot mode */ |
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mode=get_boot_mode(); |
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if(mode & BOOT_PCI) |
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printf("(PCI Boot %s Map) ",(mode & BOOT_MPS) ? |
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"MPS" : "Flash"); |
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else |
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printf("(%s Boot) ",(mode & BOOT_MPS) ? |
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"MPS" : "Flash"); |
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#endif /* #if !defined(CONFIG_PATI) */ |
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/* Init: no FLASHes known */ |
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for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) { |
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flash_info[i].flash_id = FLASH_UNKNOWN; |
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} |
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/* Static FLASH Bank configuration here - FIXME XXX */ |
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size_b0 = flash_get_size((vu_long *)CONFIG_SYS_MONITOR_BASE, &flash_info[0]); |
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if (flash_info[0].flash_id == FLASH_UNKNOWN) { |
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printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", |
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size_b0, size_b0<<20); |
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} |
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/* protect the bootloader */ |
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/* Monitor protection ON by default */ |
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#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE |
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flash_protect(FLAG_PROTECT_SET, |
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CONFIG_SYS_MONITOR_BASE, |
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CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, |
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&flash_info[0]); |
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#endif |
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#if !defined(CONFIG_PATI) |
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/* protect reset vector */ |
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flash_info[0].protect[flash_info[0].sector_count-1] = 1; |
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flash_info[0].size = size_b0; |
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/* set up flash cs according to the size */ |
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size_reg=(flash_info[0].size >>20); |
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switch (size_reg) { |
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case 0: |
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case 1: i=0; break; /* <= 1MB */ |
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case 2: i=1; break; /* = 2MB */ |
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case 4: i=2; break; /* = 4MB */ |
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case 8: i=3; break; /* = 8MB */ |
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case 16: i=4; break; /* = 16MB */ |
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case 32: i=5; break; /* = 32MB */ |
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case 64: i=6; break; /* = 64MB */ |
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case 128: i=7; break; /*= 128MB */ |
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default: |
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printf("\n #### ERROR, wrong size %ld MByte reset board #####\n",size_reg); |
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while(1); |
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} |
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if(mode & BOOT_MPS) { |
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/* flash is on CS1 */ |
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mtdcr(EBC0_CFGADDR, PB1CR); |
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flashcr = mfdcr (EBC0_CFGDATA); |
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/* we map the flash high in every case */ |
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flashcr&=0x0001FFFF; /* mask out address bits */ |
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flashcr|= ((0-flash_info[0].size) & 0xFFF00000); /* start addr */ |
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flashcr|= (i << 17); /* size addr */ |
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mtdcr(EBC0_CFGADDR, PB1CR); |
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mtdcr(EBC0_CFGDATA, flashcr); |
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} |
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else { |
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/* flash is on CS0 */ |
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mtdcr(EBC0_CFGADDR, PB0CR); |
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flashcr = mfdcr (EBC0_CFGDATA); |
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/* we map the flash high in every case */ |
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flashcr&=0x0001FFFF; /* mask out address bits */ |
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flashcr|= ((0-flash_info[0].size) & 0xFFF00000); /* start addr */ |
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flashcr|= (i << 17); /* size addr */ |
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mtdcr(EBC0_CFGADDR, PB0CR); |
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mtdcr(EBC0_CFGDATA, flashcr); |
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} |
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#if 0 |
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/* enable this (PIP405/MIP405 only) if you want to test if
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the relocation has be done ok. |
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This will disable both Chipselects */ |
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mtdcr (EBC0_CFGADDR, PB0CR); |
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mtdcr (EBC0_CFGDATA, 0L); |
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mtdcr (EBC0_CFGADDR, PB1CR); |
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mtdcr (EBC0_CFGDATA, 0L); |
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printf("CS0 & CS1 switched off for test\n"); |
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#endif |
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/* patch version_string */ |
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for(i=0;i<0x100;i++) { |
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if(*p=='\n') { |
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*p=0; |
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break; |
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} |
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p++; |
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} |
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#else /* #if !defined(CONFIG_PATI) */ |
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#ifdef CONFIG_ENV_IS_IN_FLASH |
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/* ENV protection ON by default */ |
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flash_protect(FLAG_PROTECT_SET, |
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CONFIG_ENV_ADDR, |
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CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1, |
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&flash_info[0]); |
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#endif |
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#endif /* #if !defined(CONFIG_PATI) */ |
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return (size_b0); |
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} |
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|
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|
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/*-----------------------------------------------------------------------
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*/ |
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void flash_print_info (flash_info_t *info) |
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{ |
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int i; |
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int k; |
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int size; |
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int erased; |
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volatile unsigned long *flash; |
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if (info->flash_id == FLASH_UNKNOWN) { |
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printf ("missing or unknown FLASH type\n"); |
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return; |
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} |
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switch (info->flash_id & FLASH_VENDMASK) { |
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case FLASH_MAN_AMD: printf ("AMD "); break; |
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case FLASH_MAN_FUJ: printf ("FUJITSU "); break; |
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case FLASH_MAN_SST: printf ("SST "); break; |
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case FLASH_MAN_INTEL: printf ("Intel "); break; |
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default: printf ("Unknown Vendor "); break; |
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} |
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|
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switch (info->flash_id & FLASH_TYPEMASK) { |
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case FLASH_AM040: printf ("AM29F040 (512 Kbit, uniform sector size)\n"); |
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break; |
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case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n"); |
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break; |
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case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n"); |
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break; |
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case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n"); |
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break; |
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case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n"); |
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break; |
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case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n"); |
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break; |
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case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n"); |
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break; |
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case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n"); |
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break; |
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case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n"); |
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break; |
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case FLASH_SST800A: printf ("SST39LF/VF800 (8 Mbit, uniform sector size)\n"); |
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break; |
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case FLASH_SST160A: printf ("SST39LF/VF160 (16 Mbit, uniform sector size)\n"); |
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break; |
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case FLASH_INTEL320T: printf ("TE28F320C3 (32 Mbit, top sector size)\n"); |
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break; |
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case FLASH_AM640U: printf ("AM29LV640U (64 Mbit, uniform sector size)\n"); |
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break; |
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default: printf ("Unknown Chip Type\n"); |
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break; |
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} |
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|
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printf (" Size: %ld KB in %d Sectors\n", |
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info->size >> 10, info->sector_count); |
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|
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printf (" Sector Start Addresses:"); |
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for (i=0; i<info->sector_count; ++i) { |
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/*
|
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* Check if whole sector is erased |
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*/ |
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if (i != (info->sector_count-1)) |
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size = info->start[i+1] - info->start[i]; |
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else |
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size = info->start[0] + info->size - info->start[i]; |
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erased = 1; |
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flash = (volatile unsigned long *)info->start[i]; |
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size = size >> 2; /* divide by 4 for longword access */ |
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for (k=0; k<size; k++) { |
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if (*flash++ != 0xffffffff) { |
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erased = 0; |
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break; |
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} |
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} |
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if ((i % 5) == 0) |
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printf ("\n "); |
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printf (" %08lX%s%s", |
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info->start[i], |
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erased ? " E" : " ", |
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info->protect[i] ? "RO " : " "); |
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} |
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printf ("\n"); |
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} |
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|
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/*-----------------------------------------------------------------------
|
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*/ |
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|
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|
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/*-----------------------------------------------------------------------
|
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|
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*/ |
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|
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/*
|
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* The following code cannot be run from FLASH! |
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*/ |
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static ulong flash_get_size (vu_long *addr, flash_info_t *info) |
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{ |
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short i; |
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FLASH_WORD_SIZE value; |
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ulong base; |
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volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr; |
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|
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/* Write auto select command: read Manufacturer ID */ |
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addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; |
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addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055; |
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addr2[ADDR0] = (FLASH_WORD_SIZE)0x00900090; |
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|
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value = addr2[0]; |
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/* printf("flash_get_size value: %x\n",value); */ |
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switch (value) { |
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case (FLASH_WORD_SIZE)AMD_MANUFACT: |
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info->flash_id = FLASH_MAN_AMD; |
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break; |
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case (FLASH_WORD_SIZE)FUJ_MANUFACT: |
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info->flash_id = FLASH_MAN_FUJ; |
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break; |
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case (FLASH_WORD_SIZE)INTEL_MANUFACT: |
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info->flash_id = FLASH_MAN_INTEL; |
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break; |
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case (FLASH_WORD_SIZE)SST_MANUFACT: |
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info->flash_id = FLASH_MAN_SST; |
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break; |
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default: |
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info->flash_id = FLASH_UNKNOWN; |
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info->sector_count = 0; |
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info->size = 0; |
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return (0); /* no or unknown flash */ |
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} |
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value = addr2[1]; /* device ID */ |
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/* printf("Device value %x\n",value); */ |
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switch (value) { |
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case (FLASH_WORD_SIZE)AMD_ID_F040B: |
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info->flash_id += FLASH_AM040; |
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info->sector_count = 8; |
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info->size = 0x0080000; /* => 512 ko */ |
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break; |
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case (FLASH_WORD_SIZE)AMD_ID_LV400T: |
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info->flash_id += FLASH_AM400T; |
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info->sector_count = 11; |
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info->size = 0x00080000; |
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break; /* => 0.5 MB */ |
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|
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case (FLASH_WORD_SIZE)AMD_ID_LV400B: |
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info->flash_id += FLASH_AM400B; |
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info->sector_count = 11; |
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info->size = 0x00080000; |
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break; /* => 0.5 MB */ |
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|
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case (FLASH_WORD_SIZE)AMD_ID_LV800T: |
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info->flash_id += FLASH_AM800T; |
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info->sector_count = 19; |
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info->size = 0x00100000; |
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break; /* => 1 MB */ |
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|
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case (FLASH_WORD_SIZE)AMD_ID_LV800B: |
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info->flash_id += FLASH_AM800B; |
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info->sector_count = 19; |
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info->size = 0x00100000; |
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break; /* => 1 MB */ |
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|
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case (FLASH_WORD_SIZE)AMD_ID_LV160T: |
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info->flash_id += FLASH_AM160T; |
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info->sector_count = 35; |
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info->size = 0x00200000; |
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break; /* => 2 MB */ |
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|
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case (FLASH_WORD_SIZE)AMD_ID_LV160B: |
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info->flash_id += FLASH_AM160B; |
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info->sector_count = 35; |
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info->size = 0x00200000; |
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break; /* => 2 MB */ |
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case (FLASH_WORD_SIZE)AMD_ID_LV320T: |
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info->flash_id += FLASH_AM320T; |
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info->sector_count = 67; |
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info->size = 0x00400000; |
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break; /* => 4 MB */ |
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case (FLASH_WORD_SIZE)AMD_ID_LV640U: |
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info->flash_id += FLASH_AM640U; |
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info->sector_count = 128; |
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info->size = 0x00800000; |
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break; /* => 8 MB */ |
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#if 0 /* enable when device IDs are available */
|
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|
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case (FLASH_WORD_SIZE)AMD_ID_LV320B: |
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info->flash_id += FLASH_AM320B; |
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info->sector_count = 67; |
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info->size = 0x00400000; |
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break; /* => 4 MB */ |
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#endif |
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case (FLASH_WORD_SIZE)SST_ID_xF800A: |
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info->flash_id += FLASH_SST800A; |
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info->sector_count = 16; |
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info->size = 0x00100000; |
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break; /* => 1 MB */ |
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case (FLASH_WORD_SIZE)INTEL_ID_28F320C3T: |
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info->flash_id += FLASH_INTEL320T; |
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info->sector_count = 71; |
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info->size = 0x00400000; |
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break; /* => 4 MB */ |
||||
|
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|
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case (FLASH_WORD_SIZE)SST_ID_xF160A: |
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info->flash_id += FLASH_SST160A; |
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info->sector_count = 32; |
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info->size = 0x00200000; |
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break; /* => 2 MB */ |
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|
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default: |
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info->flash_id = FLASH_UNKNOWN; |
||||
return (0); /* => no or unknown flash */ |
||||
|
||||
} |
||||
/* base address calculation */ |
||||
base=0-info->size; |
||||
/* set up sector start address table */ |
||||
if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || |
||||
(info->flash_id == FLASH_AM040) || |
||||
(info->flash_id == FLASH_AM640U)){ |
||||
for (i = 0; i < info->sector_count; i++) |
||||
info->start[i] = base + (i * 0x00010000); |
||||
} |
||||
else { |
||||
if (info->flash_id & FLASH_BTYPE) { |
||||
/* set sector offsets for bottom boot block type */ |
||||
info->start[0] = base + 0x00000000; |
||||
info->start[1] = base + 0x00004000; |
||||
info->start[2] = base + 0x00006000; |
||||
info->start[3] = base + 0x00008000; |
||||
for (i = 4; i < info->sector_count; i++) |
||||
info->start[i] = base + (i * 0x00010000) - 0x00030000; |
||||
} |
||||
else { |
||||
/* set sector offsets for top boot block type */ |
||||
i = info->sector_count - 1; |
||||
if(info->sector_count==71) { |
||||
|
||||
info->start[i--] = base + info->size - 0x00002000; |
||||
info->start[i--] = base + info->size - 0x00004000; |
||||
info->start[i--] = base + info->size - 0x00006000; |
||||
info->start[i--] = base + info->size - 0x00008000; |
||||
info->start[i--] = base + info->size - 0x0000A000; |
||||
info->start[i--] = base + info->size - 0x0000C000; |
||||
info->start[i--] = base + info->size - 0x0000E000; |
||||
for (; i >= 0; i--) |
||||
info->start[i] = base + i * 0x000010000; |
||||
} |
||||
else { |
||||
info->start[i--] = base + info->size - 0x00004000; |
||||
info->start[i--] = base + info->size - 0x00006000; |
||||
info->start[i--] = base + info->size - 0x00008000; |
||||
for (; i >= 0; 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 */ |
||||
addr2 = (volatile FLASH_WORD_SIZE *)(info->start[i]); |
||||
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) |
||||
info->protect[i] = 0; |
||||
else |
||||
info->protect[i] = addr2[2] & 1; |
||||
} |
||||
|
||||
/*
|
||||
* Prevent writes to uninitialized FLASH. |
||||
*/ |
||||
if (info->flash_id != FLASH_UNKNOWN) { |
||||
addr2 = (FLASH_WORD_SIZE *)info->start[0]; |
||||
*addr2 = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */ |
||||
} |
||||
return (info->size); |
||||
} |
||||
|
||||
|
||||
int wait_for_DQ7(flash_info_t *info, int sect) |
||||
{ |
||||
ulong start, now, last; |
||||
volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[sect]); |
||||
|
||||
start = get_timer (0); |
||||
last = start; |
||||
while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) { |
||||
if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { |
||||
printf ("Timeout\n"); |
||||
return ERR_TIMOUT; |
||||
} |
||||
/* show that we're waiting */ |
||||
if ((now - last) > 1000) { /* every second */ |
||||
putc ('.'); |
||||
last = now; |
||||
} |
||||
} |
||||
return ERR_OK; |
||||
} |
||||
|
||||
int intel_wait_for_DQ7(flash_info_t *info, int sect) |
||||
{ |
||||
ulong start, now, last, status; |
||||
volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[sect]); |
||||
|
||||
start = get_timer (0); |
||||
last = start; |
||||
while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) { |
||||
if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { |
||||
printf ("Timeout\n"); |
||||
return ERR_TIMOUT; |
||||
} |
||||
/* show that we're waiting */ |
||||
if ((now - last) > 1000) { /* every second */ |
||||
putc ('.'); |
||||
last = now; |
||||
} |
||||
} |
||||
status = addr[0] & (FLASH_WORD_SIZE)0x00280028; |
||||
/* clear status register */ |
||||
addr[0] = (FLASH_WORD_SIZE)0x00500050; |
||||
/* check status for block erase fail and VPP low */ |
||||
return (status == 0 ? ERR_OK : ERR_NOT_ERASED); |
||||
} |
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
*/ |
||||
|
||||
int flash_erase (flash_info_t *info, int s_first, int s_last) |
||||
{ |
||||
volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]); |
||||
volatile FLASH_WORD_SIZE *addr2; |
||||
int flag, prot, sect; |
||||
int i, 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) { |
||||
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"); |
||||
} |
||||
|
||||
/* Disable interrupts which might cause a timeout here */ |
||||
flag = disable_interrupts(); |
||||
|
||||
/* Start erase on unprotected sectors */ |
||||
for (sect = s_first; sect<=s_last; sect++) { |
||||
if (info->protect[sect] == 0) { /* not protected */ |
||||
addr2 = (FLASH_WORD_SIZE *)(info->start[sect]); |
||||
/* printf("Erasing sector %p\n", addr2); */ /* CLH */ |
||||
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) { |
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; |
||||
addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055; |
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080; |
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; |
||||
addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055; |
||||
addr2[0] = (FLASH_WORD_SIZE)0x00500050; /* block erase */ |
||||
for (i=0; i<50; i++) |
||||
udelay(1000); /* wait 1 ms */ |
||||
rcode |= wait_for_DQ7(info, sect); |
||||
} |
||||
else { |
||||
if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){ |
||||
addr2[0] = (FLASH_WORD_SIZE)0x00600060; /* unlock sector */ |
||||
addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* sector erase */ |
||||
intel_wait_for_DQ7(info, sect); |
||||
addr2[0] = (FLASH_WORD_SIZE)0x00200020; /* sector erase */ |
||||
addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* sector erase */ |
||||
rcode |= intel_wait_for_DQ7(info, sect); |
||||
} |
||||
else { |
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; |
||||
addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055; |
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080; |
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; |
||||
addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055; |
||||
addr2[0] = (FLASH_WORD_SIZE)0x00300030; /* sector erase */ |
||||
rcode |= wait_for_DQ7(info, sect); |
||||
} |
||||
} |
||||
/*
|
||||
* Wait for each sector to complete, it's more |
||||
* reliable. According to AMD Spec, you must |
||||
* issue all erase commands within a specified |
||||
* timeout. This has been seen to fail, especially |
||||
* if printf()s are included (for debug)!! |
||||
*/ |
||||
/* wait_for_DQ7(info, sect); */ |
||||
} |
||||
} |
||||
|
||||
/* re-enable interrupts if necessary */ |
||||
if (flag) |
||||
enable_interrupts(); |
||||
|
||||
/* wait at least 80us - let's wait 1 ms */ |
||||
udelay (1000); |
||||
|
||||
/* reset to read mode */ |
||||
addr = (FLASH_WORD_SIZE *)info->start[0]; |
||||
addr[0] = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */ |
||||
|
||||
if (!rcode) |
||||
printf (" done\n"); |
||||
|
||||
return rcode; |
||||
} |
||||
|
||||
|
||||
void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt) |
||||
{ |
||||
int i; |
||||
volatile FLASH_WORD_SIZE *addr2; |
||||
long c; |
||||
c= (long)cnt; |
||||
for(i=info->sector_count-1;i>0;i--) |
||||
{ |
||||
if(addr>=info->start[i]) |
||||
break; |
||||
} |
||||
do { |
||||
addr2 = (FLASH_WORD_SIZE *)(info->start[i]); |
||||
addr2[0] = (FLASH_WORD_SIZE)0x00600060; /* unlock sector setup */ |
||||
addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* unlock sector */ |
||||
intel_wait_for_DQ7(info, i); |
||||
i++; |
||||
c-=(info->start[i]-info->start[i-1]); |
||||
}while(c>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; |
||||
int i, l, rc; |
||||
|
||||
if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){ |
||||
unlock_intel_sectors(info,addr,cnt); |
||||
} |
||||
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; |
||||
if((wp % 0x10000)==0) |
||||
printf("."); /* show Progress */ |
||||
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); |
||||
} |
||||
rc=write_word(info, wp, data); |
||||
return rc; |
||||
} |
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
* Write a word to Flash, returns: |
||||
* 0 - OK |
||||
* 1 - write timeout |
||||
* 2 - Flash not erased |
||||
*/ |
||||
static FLASH_WORD_SIZE *read_val = (FLASH_WORD_SIZE *)0x200000; |
||||
|
||||
static int write_word (flash_info_t *info, ulong dest, ulong data) |
||||
{ |
||||
volatile FLASH_WORD_SIZE *addr2 = (volatile FLASH_WORD_SIZE *)(info->start[0]); |
||||
volatile FLASH_WORD_SIZE *dest2 = (volatile FLASH_WORD_SIZE *)dest; |
||||
volatile FLASH_WORD_SIZE *data2; |
||||
ulong start; |
||||
ulong *data_p; |
||||
int flag; |
||||
int i; |
||||
|
||||
data_p = &data; |
||||
data2 = (volatile FLASH_WORD_SIZE *)data_p; |
||||
|
||||
/* Check if Flash is (sufficiently) erased */ |
||||
if ((*((volatile FLASH_WORD_SIZE *)dest) & |
||||
(FLASH_WORD_SIZE)data) != (FLASH_WORD_SIZE)data) { |
||||
return (2); |
||||
} |
||||
/* Disable interrupts which might cause a timeout here */ |
||||
flag = disable_interrupts(); |
||||
for (i=0; i<4/sizeof(FLASH_WORD_SIZE); i++) |
||||
{ |
||||
if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){ |
||||
/* intel style writting */ |
||||
dest2[i] = (FLASH_WORD_SIZE)0x00500050; |
||||
dest2[i] = (FLASH_WORD_SIZE)0x00400040; |
||||
*read_val++ = data2[i]; |
||||
dest2[i] = data2[i]; |
||||
if (flag) |
||||
enable_interrupts(); |
||||
/* data polling for D7 */ |
||||
start = get_timer (0); |
||||
udelay(10); |
||||
while ((dest2[i] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) |
||||
{ |
||||
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) |
||||
return (1); |
||||
} |
||||
dest2[i] = (FLASH_WORD_SIZE)0x00FF00FF; /* return to read mode */ |
||||
udelay(10); |
||||
dest2[i] = (FLASH_WORD_SIZE)0x00FF00FF; /* return to read mode */ |
||||
if(dest2[i]!=data2[i]) |
||||
printf("Error at %p 0x%04X != 0x%04X\n",&dest2[i],dest2[i],data2[i]); |
||||
} |
||||
else { |
||||
addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; |
||||
addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055; |
||||
addr2[ADDR0] = (FLASH_WORD_SIZE)0x00A000A0; |
||||
dest2[i] = data2[i]; |
||||
/* re-enable interrupts if necessary */ |
||||
if (flag) |
||||
enable_interrupts(); |
||||
/* data polling for D7 */ |
||||
start = get_timer (0); |
||||
while ((dest2[i] & (FLASH_WORD_SIZE)0x00800080) != |
||||
(data2[i] & (FLASH_WORD_SIZE)0x00800080)) { |
||||
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { |
||||
return (1); |
||||
} |
||||
} |
||||
} |
||||
} |
||||
return (0); |
||||
} |
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
*/ |
||||
Loading…
Reference in new issue