From ecb55a9cefc382fde8f681c4e595a934bb40282e Mon Sep 17 00:00:00 2001 From: wdenk Date: Sat, 26 Oct 2002 16:43:06 +0000 Subject: [PATCH] Das U-Boot: Universal Boot Loader --- board/cradle/flash.c | 367 ++++++++++++++++++++++++++++++ board/dnp1110/flash.c | 473 +++++++++++++++++++++++++++++++++++++++ board/lart/flash.c | 473 +++++++++++++++++++++++++++++++++++++++ board/lubbock/flash.c | 363 ++++++++++++++++++++++++++++++ board/shannon/flash.c | 472 +++++++++++++++++++++++++++++++++++++++ board/smdk2400/flash.c | 491 +++++++++++++++++++++++++++++++++++++++++ board/smdk2410/flash.c | 446 +++++++++++++++++++++++++++++++++++++ 7 files changed, 3085 insertions(+) create mode 100644 board/cradle/flash.c create mode 100644 board/dnp1110/flash.c create mode 100644 board/lart/flash.c create mode 100644 board/lubbock/flash.c create mode 100644 board/shannon/flash.c create mode 100644 board/smdk2400/flash.c create mode 100644 board/smdk2410/flash.c diff --git a/board/cradle/flash.c b/board/cradle/flash.c new file mode 100644 index 0000000000..265b609648 --- /dev/null +++ b/board/cradle/flash.c @@ -0,0 +1,367 @@ +/* + * (C) Copyright 2002 + * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Marius Groeger + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include + +#define FLASH_BANK_SIZE 0x400000 +#define MAIN_SECT_SIZE 0x20000 + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + + +/*----------------------------------------------------------------------- + */ + +ulong flash_init(void) +{ + int i, j; + ulong size = 0; + + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) + { + ulong flashbase = 0; + flash_info[i].flash_id = + (INTEL_MANUFACT & FLASH_VENDMASK) | + (INTEL_ID_28F128J3 & FLASH_TYPEMASK); + flash_info[i].size = FLASH_BANK_SIZE; + flash_info[i].sector_count = CFG_MAX_FLASH_SECT; + memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT); + switch (i) + { + case 0: + flashbase = PHYS_FLASH_1; + break; + case 1: + flashbase = PHYS_FLASH_2; + break; + default: + panic("configured to many flash banks!\n"); + break; + } + for (j = 0; j < flash_info[i].sector_count; j++) + { + flash_info[i].start[j] = flashbase + j*MAIN_SECT_SIZE; + } + size += flash_info[i].size; + } + + /* Protect monitor and environment sectors + */ + flash_protect(FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + _armboot_end_data - _armboot_start, + &flash_info[0]); + + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SIZE - 1, + &flash_info[0]); + + return size; +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t *info) +{ + int i, j; + + for (j=0; jflash_id & FLASH_VENDMASK) + { + case (INTEL_MANUFACT & FLASH_VENDMASK): + printf("Intel: "); + break; + default: + printf("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) + { + case (INTEL_ID_28F320J3A & FLASH_TYPEMASK): + printf("28F320J3A (32Mbit)\n"); + break; + case (INTEL_ID_28F128J3 & FLASH_TYPEMASK): + printf("28F128J3 (128Mbit)\n"); + break; + default: + printf("Unknown Chip Type\n"); + 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"); + info++; + } + +Done: +} + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + int flag, prot, sect; + int rc = ERR_OK; + + if (info->flash_id == FLASH_UNKNOWN) + return ERR_UNKNOWN_FLASH_TYPE; + + if ((s_first < 0) || (s_first > s_last)) { + return ERR_INVAL; + } + + if ((info->flash_id & FLASH_VENDMASK) != + (INTEL_MANUFACT & FLASH_VENDMASK)) { + return ERR_UNKNOWN_FLASH_VENDOR; + } + + prot = 0; + for (sect=s_first; sect<=s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + if (prot) + return ERR_PROTECTED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + flag = disable_interrupts(); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last && !ctrlc(); sect++) { + + printf("Erasing sector %2d ... ", sect); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + if (info->protect[sect] == 0) { /* not protected */ + vu_short *addr = (vu_short *)(info->start[sect]); + + *addr = 0x20; /* erase setup */ + *addr = 0xD0; /* erase confirm */ + + while ((*addr & 0x80) != 0x80) { + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) { + *addr = 0xB0; /* suspend erase */ + *addr = 0xFF; /* reset to read mode */ + rc = ERR_TIMOUT; + goto outahere; + } + } + + /* clear status register command */ + *addr = 0x50; + /* reset to read mode */ + *addr = 0xFF; + } + printf("ok.\n"); + } + if (ctrlc()) + printf("User Interrupt!\n"); + +outahere: + + /* allow flash to settle - wait 10 ms */ + udelay_masked(10000); + + if (flag) + enable_interrupts(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash + */ + +static int write_word (flash_info_t *info, ulong dest, ushort data) +{ + vu_short *addr = (vu_short *)dest, val; + int rc = ERR_OK; + int flag; + + /* Check if Flash is (sufficiently) erased + */ + if ((*addr & data) != data) + return ERR_NOT_ERASED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + flag = disable_interrupts(); + + /* clear status register command */ + *addr = 0x50; + + /* program set-up command */ + *addr = 0x40; + + /* latch address/data */ + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + /* wait while polling the status register */ + while(((val = *addr) & 0x80) != 0x80) + { + if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) { + rc = ERR_TIMOUT; + /* suspend program command */ + *addr = 0xB0; + goto outahere; + } + } + + if(val & 0x1A) { /* check for error */ + printf("\nFlash write error %02x at address %08lx\n", + (int)val, (unsigned long)dest); + if(val & (1<<3)) { + printf("Voltage range error.\n"); + rc = ERR_PROG_ERROR; + goto outahere; + } + if(val & (1<<1)) { + printf("Device protect error.\n"); + rc = ERR_PROTECTED; + goto outahere; + } + if(val & (1<<4)) { + printf("Programming error.\n"); + rc = ERR_PROG_ERROR; + goto outahere; + } + rc = ERR_PROG_ERROR; + goto outahere; + } + +outahere: + /* read array command */ + *addr = 0xFF; + + if (flag) + enable_interrupts(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash. + */ + +int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp; + ushort data; + int l; + int i, rc; + + wp = (addr & ~1); /* get lower word aligned address */ + + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) + { + data = 0; + for (i=0, cp=wp; i> 8) | (*(uchar *)cp << 8); + } + for (; i<2 && cnt>0; ++i) { + data = (data >> 8) | (*src++ << 8); + --cnt; + ++cp; + } + for (; cnt==0 && i<2; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 8); + } + + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 2; + } + + /* + * handle word aligned part + */ + while (cnt >= 2) { + data = *((vu_short*)src); + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + src += 2; + wp += 2; + cnt -= 2; + } + + if (cnt == 0) { + return ERR_OK; + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) { + data = (data >> 8) | (*src++ << 8); + --cnt; + } + for (; i<2; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 8); + } + + return write_word(info, wp, data); +} diff --git a/board/dnp1110/flash.c b/board/dnp1110/flash.c new file mode 100644 index 0000000000..ca9aff957b --- /dev/null +++ b/board/dnp1110/flash.c @@ -0,0 +1,473 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Rolf Offermanns + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include + +ulong myflush(void); + + +#define FLASH_BANK_SIZE 0x800000 +#define MAIN_SECT_SIZE 0x20000 +#define PARAM_SECT_SIZE 0x4000 + +/* puzzle magic for lart + * data_*_flash are def'd in flashasm.S + */ + +extern u32 data_from_flash(u32); +extern u32 data_to_flash(u32); + +#define PUZZLE_FROM_FLASH(x) (x) +#define PUZZLE_TO_FLASH(x) (x) + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + + +#define CMD_READ_ARRAY 0x00FF00FF +#define CMD_IDENTIFY 0x00900090 +#define CMD_ERASE_SETUP 0x00200020 +#define CMD_ERASE_CONFIRM 0x00D000D0 +#define CMD_PROGRAM 0x00400040 +#define CMD_RESUME 0x00D000D0 +#define CMD_SUSPEND 0x00B000B0 +#define CMD_STATUS_READ 0x00700070 +#define CMD_STATUS_RESET 0x00500050 + +#define BIT_BUSY 0x00800080 +#define BIT_ERASE_SUSPEND 0x00400040 +#define BIT_ERASE_ERROR 0x00200020 +#define BIT_PROGRAM_ERROR 0x00100010 +#define BIT_VPP_RANGE_ERROR 0x00080008 +#define BIT_PROGRAM_SUSPEND 0x00040004 +#define BIT_PROTECT_ERROR 0x00020002 +#define BIT_UNDEFINED 0x00010001 + +#define BIT_SEQUENCE_ERROR 0x00300030 +#define BIT_TIMEOUT 0x80000000 + +/*----------------------------------------------------------------------- + */ + +ulong flash_init(void) +{ + int i, j; + ulong size = 0; + + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) + { + ulong flashbase = 0; + flash_info[i].flash_id = + (INTEL_MANUFACT & FLASH_VENDMASK) | + (INTEL_ID_28F160F3B & FLASH_TYPEMASK); + flash_info[i].size = FLASH_BANK_SIZE; + flash_info[i].sector_count = CFG_MAX_FLASH_SECT; + memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT); + if (i == 0) + flashbase = PHYS_FLASH_1; + else + panic("configured to many flash banks!\n"); + for (j = 0; j < flash_info[i].sector_count; j++) + { + if (j <= 7) + { + flash_info[i].start[j] = flashbase + j * PARAM_SECT_SIZE; + } + else + { + flash_info[i].start[j] = flashbase + (j - 7)*MAIN_SECT_SIZE; + } + } + size += flash_info[i].size; + } + + /* Protect monitor and environment sectors + */ + flash_protect(FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + _armboot_end_data - _armboot_start, + &flash_info[0]); + + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SIZE - 1, + &flash_info[0]); + + return size; +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t *info) +{ + int i; + + switch (info->flash_id & FLASH_VENDMASK) + { + case (INTEL_MANUFACT & FLASH_VENDMASK): + printf("Intel: "); + break; + default: + printf("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) + { + case (INTEL_ID_28F160F3B & FLASH_TYPEMASK): + printf("2x 28F160F3B (16Mbit)\n"); + break; + default: + printf("Unknown Chip Type\n"); + 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: +} + +/*----------------------------------------------------------------------- + */ + +int flash_error (ulong code) +{ + /* Check bit patterns */ + /* SR.7=0 is busy, SR.7=1 is ready */ + /* all other flags indicate error on 1 */ + /* SR.0 is undefined */ + /* Timeout is our faked flag */ + + /* sequence is described in Intel 290644-005 document */ + + /* check Timeout */ + if (code & BIT_TIMEOUT) + { + printf ("Timeout\n"); + return ERR_TIMOUT; + } + + /* check Busy, SR.7 */ + if (~code & BIT_BUSY) + { + printf ("Busy\n"); + return ERR_PROG_ERROR; + } + + /* check Vpp low, SR.3 */ + if (code & BIT_VPP_RANGE_ERROR) + { + printf ("Vpp range error\n"); + return ERR_PROG_ERROR; + } + + /* check Device Protect Error, SR.1 */ + if (code & BIT_PROTECT_ERROR) + { + printf ("Device protect error\n"); + return ERR_PROG_ERROR; + } + + /* check Command Seq Error, SR.4 & SR.5 */ + if (code & BIT_SEQUENCE_ERROR) + { + printf ("Command seqence error\n"); + return ERR_PROG_ERROR; + } + + /* check Block Erase Error, SR.5 */ + if (code & BIT_ERASE_ERROR) + { + printf ("Block erase error\n"); + return ERR_PROG_ERROR; + } + + /* check Program Error, SR.4 */ + if (code & BIT_PROGRAM_ERROR) + { + printf ("Program error\n"); + return ERR_PROG_ERROR; + } + + /* check Block Erase Suspended, SR.6 */ + if (code & BIT_ERASE_SUSPEND) + { + printf ("Block erase suspended\n"); + return ERR_PROG_ERROR; + } + + /* check Program Suspended, SR.2 */ + if (code & BIT_PROGRAM_SUSPEND) + { + printf ("Program suspended\n"); + return ERR_PROG_ERROR; + } + + /* OK, no error */ + return ERR_OK; +} + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + ulong result; + int iflag, cflag, prot, sect; + int rc = ERR_OK; + + /* first look for protection bits */ + + if (info->flash_id == FLASH_UNKNOWN) + return ERR_UNKNOWN_FLASH_TYPE; + + if ((s_first < 0) || (s_first > s_last)) { + return ERR_INVAL; + } + + if ((info->flash_id & FLASH_VENDMASK) != + (INTEL_MANUFACT & FLASH_VENDMASK)) { + return ERR_UNKNOWN_FLASH_VENDOR; + } + + prot = 0; + for (sect=s_first; sect<=s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + if (prot) + return ERR_PROTECTED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + cflag = icache_status(); + icache_disable(); + iflag = disable_interrupts(); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last && !ctrlc(); sect++) + { + printf("Erasing sector %2d ... ", sect); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + if (info->protect[sect] == 0) + { /* not protected */ + vu_long *addr = (vu_long *)(info->start[sect]); + + *addr = PUZZLE_TO_FLASH(CMD_STATUS_RESET); + *addr = PUZZLE_TO_FLASH(CMD_ERASE_SETUP); + *addr = PUZZLE_TO_FLASH(CMD_ERASE_CONFIRM); + + /* wait until flash is ready */ + do + { + /* check timeout */ + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) + { + *addr = PUZZLE_TO_FLASH(CMD_SUSPEND); + result = BIT_TIMEOUT; + break; + } + + result = PUZZLE_FROM_FLASH(*addr); + } while (~result & BIT_BUSY); + + *addr = PUZZLE_TO_FLASH(CMD_READ_ARRAY); + + if ((rc = flash_error(result)) != ERR_OK) + goto outahere; + + printf("ok.\n"); + } + else /* it was protected */ + { + printf("protected!\n"); + } + } + + if (ctrlc()) + printf("User Interrupt!\n"); + +outahere: + /* allow flash to settle - wait 10 ms */ + udelay_masked(10000); + + if (iflag) + enable_interrupts(); + + if (cflag) + icache_enable(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash + */ + +volatile static int write_word (flash_info_t *info, ulong dest, ulong data) +{ + vu_long *addr = (vu_long *)dest; + ulong result; + int rc = ERR_OK; + int cflag, iflag; + + /* Check if Flash is (sufficiently) erased + */ + result = PUZZLE_FROM_FLASH(*addr); + if ((result & data) != data) + return ERR_NOT_ERASED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + cflag = icache_status(); + icache_disable(); + iflag = disable_interrupts(); + + *addr = PUZZLE_TO_FLASH(CMD_STATUS_RESET); + *addr = PUZZLE_TO_FLASH(CMD_PROGRAM); + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + /* wait until flash is ready */ + do + { + /* check timeout */ + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) + { + *addr = PUZZLE_TO_FLASH(CMD_SUSPEND); + result = BIT_TIMEOUT; + break; + } + + result = PUZZLE_FROM_FLASH(*addr); + } while (~result & BIT_BUSY); + + *addr = PUZZLE_TO_FLASH(CMD_READ_ARRAY); + + rc = flash_error(result); + + if (iflag) + enable_interrupts(); + + if (cflag) + icache_enable(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash. + */ + +int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp, data; + int l; + int i, rc; + + 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> 8) | (*(uchar *)cp << 24); + } + for (; i<4 && cnt>0; ++i) { + data = (data >> 8) | (*src++ << 24); + --cnt; + ++cp; + } + for (; cnt==0 && i<4; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 24); + } + + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 4; + } + + /* + * handle word aligned part + */ + while (cnt >= 4) { + data = *((vu_long*)src); + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + src += 4; + wp += 4; + cnt -= 4; + } + + if (cnt == 0) { + return ERR_OK; + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { + data = (data >> 8) | (*src++ << 24); + --cnt; + } + for (; i<4; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 24); + } + + return write_word(info, wp, data); +} diff --git a/board/lart/flash.c b/board/lart/flash.c new file mode 100644 index 0000000000..7b19524139 --- /dev/null +++ b/board/lart/flash.c @@ -0,0 +1,473 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Marius Groeger + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include + +ulong myflush(void); + + +#define FLASH_BANK_SIZE 0x800000 +#define MAIN_SECT_SIZE 0x20000 +#define PARAM_SECT_SIZE 0x4000 + +/* puzzle magic for lart + * data_*_flash are def'd in flashasm.S + */ + +extern u32 data_from_flash(u32); +extern u32 data_to_flash(u32); + +#define PUZZLE_FROM_FLASH(x) data_from_flash((x)) +#define PUZZLE_TO_FLASH(x) data_to_flash((x)) + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + + +#define CMD_READ_ARRAY 0x00FF00FF +#define CMD_IDENTIFY 0x00900090 +#define CMD_ERASE_SETUP 0x00200020 +#define CMD_ERASE_CONFIRM 0x00D000D0 +#define CMD_PROGRAM 0x00400040 +#define CMD_RESUME 0x00D000D0 +#define CMD_SUSPEND 0x00B000B0 +#define CMD_STATUS_READ 0x00700070 +#define CMD_STATUS_RESET 0x00500050 + +#define BIT_BUSY 0x00800080 +#define BIT_ERASE_SUSPEND 0x00400040 +#define BIT_ERASE_ERROR 0x00200020 +#define BIT_PROGRAM_ERROR 0x00100010 +#define BIT_VPP_RANGE_ERROR 0x00080008 +#define BIT_PROGRAM_SUSPEND 0x00040004 +#define BIT_PROTECT_ERROR 0x00020002 +#define BIT_UNDEFINED 0x00010001 + +#define BIT_SEQUENCE_ERROR 0x00300030 +#define BIT_TIMEOUT 0x80000000 + +/*----------------------------------------------------------------------- + */ + +ulong flash_init(void) +{ + int i, j; + ulong size = 0; + + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) + { + ulong flashbase = 0; + flash_info[i].flash_id = + (INTEL_MANUFACT & FLASH_VENDMASK) | + (INTEL_ID_28F160F3B & FLASH_TYPEMASK); + flash_info[i].size = FLASH_BANK_SIZE; + flash_info[i].sector_count = CFG_MAX_FLASH_SECT; + memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT); + if (i == 0) + flashbase = PHYS_FLASH_1; + else + panic("configured to many flash banks!\n"); + for (j = 0; j < flash_info[i].sector_count; j++) + { + if (j <= 7) + { + flash_info[i].start[j] = flashbase + j * PARAM_SECT_SIZE; + } + else + { + flash_info[i].start[j] = flashbase + (j - 7)*MAIN_SECT_SIZE; + } + } + size += flash_info[i].size; + } + + /* Protect monitor and environment sectors + */ + flash_protect(FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + _armboot_end_data - _armboot_start, + &flash_info[0]); + + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SIZE - 1, + &flash_info[0]); + + return size; +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t *info) +{ + int i; + + switch (info->flash_id & FLASH_VENDMASK) + { + case (INTEL_MANUFACT & FLASH_VENDMASK): + printf("Intel: "); + break; + default: + printf("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) + { + case (INTEL_ID_28F160F3B & FLASH_TYPEMASK): + printf("2x 28F160F3B (16Mbit)\n"); + break; + default: + printf("Unknown Chip Type\n"); + 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: +} + +/*----------------------------------------------------------------------- + */ + +int flash_error (ulong code) +{ + /* Check bit patterns */ + /* SR.7=0 is busy, SR.7=1 is ready */ + /* all other flags indicate error on 1 */ + /* SR.0 is undefined */ + /* Timeout is our faked flag */ + + /* sequence is described in Intel 290644-005 document */ + + /* check Timeout */ + if (code & BIT_TIMEOUT) + { + printf ("Timeout\n"); + return ERR_TIMOUT; + } + + /* check Busy, SR.7 */ + if (~code & BIT_BUSY) + { + printf ("Busy\n"); + return ERR_PROG_ERROR; + } + + /* check Vpp low, SR.3 */ + if (code & BIT_VPP_RANGE_ERROR) + { + printf ("Vpp range error\n"); + return ERR_PROG_ERROR; + } + + /* check Device Protect Error, SR.1 */ + if (code & BIT_PROTECT_ERROR) + { + printf ("Device protect error\n"); + return ERR_PROG_ERROR; + } + + /* check Command Seq Error, SR.4 & SR.5 */ + if (code & BIT_SEQUENCE_ERROR) + { + printf ("Command seqence error\n"); + return ERR_PROG_ERROR; + } + + /* check Block Erase Error, SR.5 */ + if (code & BIT_ERASE_ERROR) + { + printf ("Block erase error\n"); + return ERR_PROG_ERROR; + } + + /* check Program Error, SR.4 */ + if (code & BIT_PROGRAM_ERROR) + { + printf ("Program error\n"); + return ERR_PROG_ERROR; + } + + /* check Block Erase Suspended, SR.6 */ + if (code & BIT_ERASE_SUSPEND) + { + printf ("Block erase suspended\n"); + return ERR_PROG_ERROR; + } + + /* check Program Suspended, SR.2 */ + if (code & BIT_PROGRAM_SUSPEND) + { + printf ("Program suspended\n"); + return ERR_PROG_ERROR; + } + + /* OK, no error */ + return ERR_OK; +} + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + ulong result; + int iflag, cflag, prot, sect; + int rc = ERR_OK; + + /* first look for protection bits */ + + if (info->flash_id == FLASH_UNKNOWN) + return ERR_UNKNOWN_FLASH_TYPE; + + if ((s_first < 0) || (s_first > s_last)) { + return ERR_INVAL; + } + + if ((info->flash_id & FLASH_VENDMASK) != + (INTEL_MANUFACT & FLASH_VENDMASK)) { + return ERR_UNKNOWN_FLASH_VENDOR; + } + + prot = 0; + for (sect=s_first; sect<=s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + if (prot) + return ERR_PROTECTED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + cflag = icache_status(); + icache_disable(); + iflag = disable_interrupts(); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last && !ctrlc(); sect++) + { + printf("Erasing sector %2d ... ", sect); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + if (info->protect[sect] == 0) + { /* not protected */ + vu_long *addr = (vu_long *)(info->start[sect]); + + *addr = PUZZLE_TO_FLASH(CMD_STATUS_RESET); + *addr = PUZZLE_TO_FLASH(CMD_ERASE_SETUP); + *addr = PUZZLE_TO_FLASH(CMD_ERASE_CONFIRM); + + /* wait until flash is ready */ + do + { + /* check timeout */ + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) + { + *addr = PUZZLE_TO_FLASH(CMD_SUSPEND); + result = BIT_TIMEOUT; + break; + } + + result = PUZZLE_FROM_FLASH(*addr); + } while (~result & BIT_BUSY); + + *addr = PUZZLE_TO_FLASH(CMD_READ_ARRAY); + + if ((rc = flash_error(result)) != ERR_OK) + goto outahere; + + printf("ok.\n"); + } + else /* it was protected */ + { + printf("protected!\n"); + } + } + + if (ctrlc()) + printf("User Interrupt!\n"); + +outahere: + /* allow flash to settle - wait 10 ms */ + udelay_masked(10000); + + if (iflag) + enable_interrupts(); + + if (cflag) + icache_enable(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash + */ + +volatile static int write_word (flash_info_t *info, ulong dest, ulong data) +{ + vu_long *addr = (vu_long *)dest; + ulong result; + int rc = ERR_OK; + int cflag, iflag; + + /* Check if Flash is (sufficiently) erased + */ + result = PUZZLE_FROM_FLASH(*addr); + if ((result & data) != data) + return ERR_NOT_ERASED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + cflag = icache_status(); + icache_disable(); + iflag = disable_interrupts(); + + *addr = PUZZLE_TO_FLASH(CMD_STATUS_RESET); + *addr = PUZZLE_TO_FLASH(CMD_PROGRAM); + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + /* wait until flash is ready */ + do + { + /* check timeout */ + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) + { + *addr = PUZZLE_TO_FLASH(CMD_SUSPEND); + result = BIT_TIMEOUT; + break; + } + + result = PUZZLE_FROM_FLASH(*addr); + } while (~result & BIT_BUSY); + + *addr = PUZZLE_TO_FLASH(CMD_READ_ARRAY); + + rc = flash_error(result); + + if (iflag) + enable_interrupts(); + + if (cflag) + icache_enable(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash. + */ + +int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp, data; + int l; + int i, rc; + + 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> 8) | (*(uchar *)cp << 24); + } + for (; i<4 && cnt>0; ++i) { + data = (data >> 8) | (*src++ << 24); + --cnt; + ++cp; + } + for (; cnt==0 && i<4; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 24); + } + + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 4; + } + + /* + * handle word aligned part + */ + while (cnt >= 4) { + data = *((vu_long*)src); + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + src += 4; + wp += 4; + cnt -= 4; + } + + if (cnt == 0) { + return ERR_OK; + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { + data = (data >> 8) | (*src++ << 24); + --cnt; + } + for (; i<4; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 24); + } + + return write_word(info, wp, data); +} diff --git a/board/lubbock/flash.c b/board/lubbock/flash.c new file mode 100644 index 0000000000..84c09a853c --- /dev/null +++ b/board/lubbock/flash.c @@ -0,0 +1,363 @@ +/* + * (C) Copyright 2002 + * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Marius Groeger + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include + +#define FLASH_BANK_SIZE 0x2000000 +#define MAIN_SECT_SIZE 0x40000 /* 2x16 = 256k per sector */ + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + + +/*----------------------------------------------------------------------- + */ + +ulong flash_init(void) +{ + int i, j; + ulong size = 0; + + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) + { + ulong flashbase = 0; + flash_info[i].flash_id = + (INTEL_MANUFACT & FLASH_VENDMASK) | + (INTEL_ID_28F128J3 & FLASH_TYPEMASK); + flash_info[i].size = FLASH_BANK_SIZE; + flash_info[i].sector_count = CFG_MAX_FLASH_SECT; + memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT); + switch (i) + { + case 0: + flashbase = PHYS_FLASH_1; + break; + case 1: + flashbase = PHYS_FLASH_2; + break; + default: + panic("configured to many flash banks!\n"); + break; + } + for (j = 0; j < flash_info[i].sector_count; j++) + { + flash_info[i].start[j] = flashbase + j*MAIN_SECT_SIZE; + } + size += flash_info[i].size; + } + + /* Protect monitor and environment sectors + */ + flash_protect(FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + _armboot_end_data - _armboot_start, + &flash_info[0]); + + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SIZE - 1, + &flash_info[0]); + + return size; +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t *info) +{ + int i, j; + + for (j=0; jflash_id & FLASH_VENDMASK) + { + case (INTEL_MANUFACT & FLASH_VENDMASK): + printf("Intel: "); + break; + default: + printf("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) + { + case (INTEL_ID_28F128J3 & FLASH_TYPEMASK): + printf("28F128J3 (128Mbit)\n"); + break; + default: + printf("Unknown Chip Type\n"); + 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"); + info++; + } + +Done: +} + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + int flag, prot, sect; + int rc = ERR_OK; + + if (info->flash_id == FLASH_UNKNOWN) + return ERR_UNKNOWN_FLASH_TYPE; + + if ((s_first < 0) || (s_first > s_last)) { + return ERR_INVAL; + } + + if ((info->flash_id & FLASH_VENDMASK) != + (INTEL_MANUFACT & FLASH_VENDMASK)) { + return ERR_UNKNOWN_FLASH_VENDOR; + } + + prot = 0; + for (sect=s_first; sect<=s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + if (prot) + return ERR_PROTECTED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + flag = disable_interrupts(); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last && !ctrlc(); sect++) { + + printf("Erasing sector %2d ... ", sect); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + if (info->protect[sect] == 0) { /* not protected */ + vu_short *addr = (vu_short *)(info->start[sect]); + + *addr = 0x20; /* erase setup */ + *addr = 0xD0; /* erase confirm */ + + while ((*addr & 0x80) != 0x80) { + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) { + *addr = 0xB0; /* suspend erase */ + *addr = 0xFF; /* reset to read mode */ + rc = ERR_TIMOUT; + goto outahere; + } + } + + /* clear status register command */ + *addr = 0x50; + /* reset to read mode */ + *addr = 0xFF; + } + printf("ok.\n"); + } + if (ctrlc()) + printf("User Interrupt!\n"); + +outahere: + + /* allow flash to settle - wait 10 ms */ + udelay_masked(10000); + + if (flag) + enable_interrupts(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash + */ + +static int write_word (flash_info_t *info, ulong dest, ushort data) +{ + vu_short *addr = (vu_short *)dest, val; + int rc = ERR_OK; + int flag; + + /* Check if Flash is (sufficiently) erased + */ + if ((*addr & data) != data) + return ERR_NOT_ERASED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + flag = disable_interrupts(); + + /* clear status register command */ + *addr = 0x50; + + /* program set-up command */ + *addr = 0x40; + + /* latch address/data */ + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + /* wait while polling the status register */ + while(((val = *addr) & 0x80) != 0x80) + { + if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) { + rc = ERR_TIMOUT; + /* suspend program command */ + *addr = 0xB0; + goto outahere; + } + } + + if(val & 0x1A) { /* check for error */ + printf("\nFlash write error %02x at address %08lx\n", + (int)val, (unsigned long)dest); + if(val & (1<<3)) { + printf("Voltage range error.\n"); + rc = ERR_PROG_ERROR; + goto outahere; + } + if(val & (1<<1)) { + printf("Device protect error.\n"); + rc = ERR_PROTECTED; + goto outahere; + } + if(val & (1<<4)) { + printf("Programming error.\n"); + rc = ERR_PROG_ERROR; + goto outahere; + } + rc = ERR_PROG_ERROR; + goto outahere; + } + +outahere: + /* read array command */ + *addr = 0xFF; + + if (flag) + enable_interrupts(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash. + */ + +int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp; + ushort data; + int l; + int i, rc; + + wp = (addr & ~1); /* get lower word aligned address */ + + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + data = 0; + for (i=0, cp=wp; i> 8) | (*(uchar *)cp << 8); + } + for (; i<2 && cnt>0; ++i) { + data = (data >> 8) | (*src++ << 8); + --cnt; + ++cp; + } + for (; cnt==0 && i<2; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 8); + } + + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 2; + } + + /* + * handle word aligned part + */ + while (cnt >= 2) { + data = *((vu_short*)src); + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + src += 2; + wp += 2; + cnt -= 2; + } + + if (cnt == 0) { + return ERR_OK; + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) { + data = (data >> 8) | (*src++ << 8); + --cnt; + } + for (; i<2; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 8); + } + + return write_word(info, wp, data); +} diff --git a/board/shannon/flash.c b/board/shannon/flash.c new file mode 100644 index 0000000000..8e0f752193 --- /dev/null +++ b/board/shannon/flash.c @@ -0,0 +1,472 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Alex Zuepke + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include + +ulong myflush(void); + + +#define FLASH_BANK_SIZE 0x400000 /* 4 MB */ +#define MAIN_SECT_SIZE 0x20000 /* 128 KB */ + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + + +#define CMD_READ_ARRAY 0x00F000F0 +#define CMD_UNLOCK1 0x00AA00AA +#define CMD_UNLOCK2 0x00550055 +#define CMD_ERASE_SETUP 0x00800080 +#define CMD_ERASE_CONFIRM 0x00300030 +#define CMD_PROGRAM 0x00A000A0 +#define CMD_UNLOCK_BYPASS 0x00200020 + +#define MEM_FLASH_ADDR1 (*(volatile u32 *)(CFG_FLASH_BASE + (0x00000555 << 2))) +#define MEM_FLASH_ADDR2 (*(volatile u32 *)(CFG_FLASH_BASE + (0x000002AA << 2))) + +#define BIT_ERASE_DONE 0x00800080 +#define BIT_RDY_MASK 0x00800080 +#define BIT_PROGRAM_ERROR 0x00200020 +#define BIT_TIMEOUT 0x80000000 /* our flag */ + +#define READY 1 +#define ERR 2 +#define TMO 4 + +/*----------------------------------------------------------------------- + */ + +ulong flash_init(void) +{ + int i, j; + ulong size = 0; + + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) + { + ulong flashbase = 0; + flash_info[i].flash_id = + (AMD_MANUFACT & FLASH_VENDMASK) | + (AMD_ID_LV160B & FLASH_TYPEMASK); + flash_info[i].size = FLASH_BANK_SIZE; + flash_info[i].sector_count = CFG_MAX_FLASH_SECT; + memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT); + if (i == 0) + flashbase = PHYS_FLASH_1; + else + panic("configured to many flash banks!\n"); + for (j = 0; j < flash_info[i].sector_count; j++) + { + + if (j <= 3) + { + /* 1st one is 32 KB */ + if (j == 0) + { + flash_info[i].start[j] = flashbase + 0; + } + + /* 2nd and 3rd are both 16 KB */ + if ((j == 1) || (j == 2)) + { + flash_info[i].start[j] = flashbase + 0x8000 + (j-1)*0x4000; + } + + /* 4th 64 KB */ + if (j == 3) + { + flash_info[i].start[j] = flashbase + 0x10000; + } + } + else + { + flash_info[i].start[j] = flashbase + (j - 3)*MAIN_SECT_SIZE; + } + } + size += flash_info[i].size; + } + + /* + * Protect monitor and environment sectors + * Inferno is complicated, it's hardware locked + */ +#ifdef CONFIG_INFERNO + /* first one, 0x00000 to 0x07fff */ + flash_protect(FLAG_PROTECT_SET, + CFG_FLASH_BASE + 0x00000, + CFG_FLASH_BASE + 0x08000 - 1, + &flash_info[0]); + + /* third to 10th, 0x0c000 - 0xdffff */ + flash_protect(FLAG_PROTECT_SET, + CFG_FLASH_BASE + 0x0c000, + CFG_FLASH_BASE + 0xe0000 - 1, + &flash_info[0]); +#else + flash_protect(FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + _armboot_end_data - _armboot_start, + &flash_info[0]); + + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SIZE - 1, + &flash_info[0]); +#endif + return size; +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t *info) +{ + int i; + + switch (info->flash_id & FLASH_VENDMASK) + { + case (AMD_MANUFACT & FLASH_VENDMASK): + printf("AMD: "); + break; + default: + printf("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) + { + case (AMD_ID_LV160B & FLASH_TYPEMASK): + printf("2x Amd29F160BB (16Mbit)\n"); + break; + default: + printf("Unknown Chip Type\n"); + 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: +} + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + ulong result; + int iflag, cflag, prot, sect; + int rc = ERR_OK; + int chip1, chip2; + + /* first look for protection bits */ + + if (info->flash_id == FLASH_UNKNOWN) + return ERR_UNKNOWN_FLASH_TYPE; + + if ((s_first < 0) || (s_first > s_last)) { + return ERR_INVAL; + } + + if ((info->flash_id & FLASH_VENDMASK) != + (AMD_MANUFACT & FLASH_VENDMASK)) { + return ERR_UNKNOWN_FLASH_VENDOR; + } + + prot = 0; + for (sect=s_first; sect<=s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + if (prot) + return ERR_PROTECTED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + cflag = icache_status(); + icache_disable(); + iflag = disable_interrupts(); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last && !ctrlc(); sect++) + { + printf("Erasing sector %2d ... ", sect); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + if (info->protect[sect] == 0) + { /* not protected */ + vu_long *addr = (vu_long *)(info->start[sect]); + + MEM_FLASH_ADDR1 = CMD_UNLOCK1; + MEM_FLASH_ADDR2 = CMD_UNLOCK2; + MEM_FLASH_ADDR1 = CMD_ERASE_SETUP; + + MEM_FLASH_ADDR1 = CMD_UNLOCK1; + MEM_FLASH_ADDR2 = CMD_UNLOCK2; + *addr = CMD_ERASE_CONFIRM; + + /* wait until flash is ready */ + chip1 = chip2 = 0; + + do + { + result = *addr; + + /* check timeout */ + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) + { + MEM_FLASH_ADDR1 = CMD_READ_ARRAY; + chip1 = TMO; + break; + } + + if (!chip1 && (result & 0xFFFF) & BIT_ERASE_DONE) + chip1 = READY; + + if (!chip1 && (result & 0xFFFF) & BIT_PROGRAM_ERROR) + chip1 = ERR; + + if (!chip2 && (result >> 16) & BIT_ERASE_DONE) + chip2 = READY; + + if (!chip2 && (result >> 16) & BIT_PROGRAM_ERROR) + chip2 = ERR; + + } while (!chip1 || !chip2); + + MEM_FLASH_ADDR1 = CMD_READ_ARRAY; + + if (chip1 == ERR || chip2 == ERR) + { + rc = ERR_PROG_ERROR; + goto outahere; + } + if (chip1 == TMO) + { + rc = ERR_TIMOUT; + goto outahere; + } + + printf("ok.\n"); + } + else /* it was protected */ + { + printf("protected!\n"); + } + } + + if (ctrlc()) + printf("User Interrupt!\n"); + +outahere: + /* allow flash to settle - wait 10 ms */ + udelay_masked(10000); + + if (iflag) + enable_interrupts(); + + if (cflag) + icache_enable(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash + */ + +volatile static int write_word (flash_info_t *info, ulong dest, ulong data) +{ + vu_long *addr = (vu_long *)dest; + ulong result; + int rc = ERR_OK; + int cflag, iflag; + int chip1, chip2; + + /* + * Check if Flash is (sufficiently) erased + */ + result = *addr; + if ((result & data) != data) + return ERR_NOT_ERASED; + + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + cflag = icache_status(); + icache_disable(); + iflag = disable_interrupts(); + + MEM_FLASH_ADDR1 = CMD_UNLOCK1; + MEM_FLASH_ADDR2 = CMD_UNLOCK2; + MEM_FLASH_ADDR1 = CMD_UNLOCK_BYPASS; + *addr = CMD_PROGRAM; + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + /* wait until flash is ready */ + chip1 = chip2 = 0; + do + { + result = *addr; + + /* check timeout */ + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) + { + chip1 = ERR | TMO; + break; + } + if (!chip1 && ((result & 0x80) == (data & 0x80))) + chip1 = READY; + + if (!chip1 && ((result & 0xFFFF) & BIT_PROGRAM_ERROR)) + { + result = *addr; + + if ((result & 0x80) == (data & 0x80)) + chip1 = READY; + else + chip1 = ERR; + } + + if (!chip2 && ((result & (0x80 << 16)) == (data & (0x80 << 16)))) + chip2 = READY; + + if (!chip2 && ((result >> 16) & BIT_PROGRAM_ERROR)) + { + result = *addr; + + if ((result & (0x80 << 16)) == (data & (0x80 << 16))) + chip2 = READY; + else + chip2 = ERR; + } + + } while (!chip1 || !chip2); + + *addr = CMD_READ_ARRAY; + + if (chip1 == ERR || chip2 == ERR || *addr != data) + rc = ERR_PROG_ERROR; + + if (iflag) + enable_interrupts(); + + if (cflag) + icache_enable(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash. + */ + +int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp, data; + int l; + int i, rc; + + 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> 8) | (*(uchar *)cp << 24); + } + for (; i<4 && cnt>0; ++i) { + data = (data >> 8) | (*src++ << 24); + --cnt; + ++cp; + } + for (; cnt==0 && i<4; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 24); + } + + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 4; + } + + /* + * handle word aligned part + */ + while (cnt >= 4) { + data = *((vu_long*)src); + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + src += 4; + wp += 4; + cnt -= 4; + } + + if (cnt == 0) { + return ERR_OK; + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { + data = (data >> 8) | (*src++ << 24); + --cnt; + } + for (; i<4; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 24); + } + + return write_word(info, wp, data); +} diff --git a/board/smdk2400/flash.c b/board/smdk2400/flash.c new file mode 100644 index 0000000000..c4d6bae8f2 --- /dev/null +++ b/board/smdk2400/flash.c @@ -0,0 +1,491 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Marius Groeger + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* #define DEBUG */ + +#include +#include + +#define FLASH_BANK_SIZE 0x1000000 /* 2 x 8 MB */ +#define MAIN_SECT_SIZE 0x40000 /* 2 x 128 kB */ + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + + +#define CMD_READ_ARRAY 0x00FF00FF +#define CMD_IDENTIFY 0x00900090 +#define CMD_ERASE_SETUP 0x00200020 +#define CMD_ERASE_CONFIRM 0x00D000D0 +#define CMD_PROGRAM 0x00400040 +#define CMD_RESUME 0x00D000D0 +#define CMD_SUSPEND 0x00B000B0 +#define CMD_STATUS_READ 0x00700070 +#define CMD_STATUS_RESET 0x00500050 + +#define BIT_BUSY 0x00800080 +#define BIT_ERASE_SUSPEND 0x00400040 +#define BIT_ERASE_ERROR 0x00200020 +#define BIT_PROGRAM_ERROR 0x00100010 +#define BIT_VPP_RANGE_ERROR 0x00080008 +#define BIT_PROGRAM_SUSPEND 0x00040004 +#define BIT_PROTECT_ERROR 0x00020002 +#define BIT_UNDEFINED 0x00010001 + +#define BIT_SEQUENCE_ERROR 0x00300030 +#define BIT_TIMEOUT 0x80000000 + +/*----------------------------------------------------------------------- + */ + +ulong flash_init (void) +{ + int i, j; + ulong size = 0; + + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { + ulong flashbase = 0; + + flash_info[i].flash_id = + (INTEL_MANUFACT & FLASH_VENDMASK) | + (INTEL_ID_28F640J3A & FLASH_TYPEMASK); + flash_info[i].size = FLASH_BANK_SIZE; + flash_info[i].sector_count = CFG_MAX_FLASH_SECT; + memset (flash_info[i].protect, 0, CFG_MAX_FLASH_SECT); + if (i == 0) + flashbase = PHYS_FLASH_1; + else + panic ("configured too many flash banks!\n"); + for (j = 0; j < flash_info[i].sector_count; j++) { + flash_info[i].start[j] = flashbase; + + /* uniform sector size */ + flashbase += MAIN_SECT_SIZE; + } + size += flash_info[i].size; + } + + /* + * Protect monitor and environment sectors + */ + flash_protect ( FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + _armboot_end_data - _armboot_start, + &flash_info[0]); + + flash_protect ( FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]); + +#ifdef CFG_ENV_ADDR_REDUND + flash_protect ( FLAG_PROTECT_SET, + CFG_ENV_ADDR_REDUND, + CFG_ENV_ADDR_REDUND + CFG_ENV_SIZE_REDUND - 1, + &flash_info[0]); +#endif + + return size; +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t * info) +{ + int i; + + switch (info->flash_id & FLASH_VENDMASK) { + case (INTEL_MANUFACT & FLASH_VENDMASK): + printf ("Intel: "); + break; + default: + printf ("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case (INTEL_ID_28F640J3A & FLASH_TYPEMASK): + printf ("2x 28F640J3A (64Mbit)\n"); + break; + default: + printf ("Unknown Chip Type\n"); + 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: +} + +/*----------------------------------------------------------------------- + */ + +int flash_error (ulong code) +{ + /* Check bit patterns */ + /* SR.7=0 is busy, SR.7=1 is ready */ + /* all other flags indicate error on 1 */ + /* SR.0 is undefined */ + /* Timeout is our faked flag */ + + /* sequence is described in Intel 290644-005 document */ + + /* check Timeout */ + if (code & BIT_TIMEOUT) { + puts ("Timeout\n"); + return ERR_TIMOUT; + } + + /* check Busy, SR.7 */ + if (~code & BIT_BUSY) { + puts ("Busy\n"); + return ERR_PROG_ERROR; + } + + /* check Vpp low, SR.3 */ + if (code & BIT_VPP_RANGE_ERROR) { + puts ("Vpp range error\n"); + return ERR_PROG_ERROR; + } + + /* check Device Protect Error, SR.1 */ + if (code & BIT_PROTECT_ERROR) { + puts ("Device protect error\n"); + return ERR_PROG_ERROR; + } + + /* check Command Seq Error, SR.4 & SR.5 */ + if (code & BIT_SEQUENCE_ERROR) { + puts ("Command seqence error\n"); + return ERR_PROG_ERROR; + } + + /* check Block Erase Error, SR.5 */ + if (code & BIT_ERASE_ERROR) { + puts ("Block erase error\n"); + return ERR_PROG_ERROR; + } + + /* check Program Error, SR.4 */ + if (code & BIT_PROGRAM_ERROR) { + puts ("Program error\n"); + return ERR_PROG_ERROR; + } + + /* check Block Erase Suspended, SR.6 */ + if (code & BIT_ERASE_SUSPEND) { + puts ("Block erase suspended\n"); + return ERR_PROG_ERROR; + } + + /* check Program Suspended, SR.2 */ + if (code & BIT_PROGRAM_SUSPEND) { + puts ("Program suspended\n"); + return ERR_PROG_ERROR; + } + + /* OK, no error */ + return ERR_OK; +} + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t * info, int s_first, int s_last) +{ + ulong result, result1; + int iflag, prot, sect; + int rc = ERR_OK; + +#ifdef USE_920T_MMU + int cflag; +#endif + + debug ("flash_erase: s_first %d s_last %d\n", s_first, s_last); + + /* first look for protection bits */ + + if (info->flash_id == FLASH_UNKNOWN) + return ERR_UNKNOWN_FLASH_TYPE; + + if ((s_first < 0) || (s_first > s_last)) { + return ERR_INVAL; + } + + if ((info->flash_id & FLASH_VENDMASK) != + (INTEL_MANUFACT & FLASH_VENDMASK)) { + return ERR_UNKNOWN_FLASH_VENDOR; + } + + 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. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ +#ifdef USE_920T_MMU + cflag = dcache_status (); + dcache_disable (); +#endif + iflag = disable_interrupts (); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect <= s_last && !ctrlc (); sect++) { + + debug ("Erasing sector %2d @ %08lX... ", + sect, info->start[sect]); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); + + if (info->protect[sect] == 0) { /* not protected */ + vu_long *addr = (vu_long *) (info->start[sect]); + ulong bsR7, bsR7_2, bsR5, bsR5_2; + + /* *addr = CMD_STATUS_RESET; */ + *addr = CMD_ERASE_SETUP; + *addr = CMD_ERASE_CONFIRM; + + /* wait until flash is ready */ + do { + /* check timeout */ + if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) { + *addr = CMD_STATUS_RESET; + result = BIT_TIMEOUT; + break; + } + + *addr = CMD_STATUS_READ; + result = *addr; + bsR7 = result & (1 << 7); + bsR7_2 = result & (1 << 23); + } while (!bsR7 | !bsR7_2); + + *addr = CMD_STATUS_READ; + result1 = *addr; + bsR5 = result1 & (1 << 5); + bsR5_2 = result1 & (1 << 21); +#ifdef SAMSUNG_FLASH_DEBUG + printf ("bsR5 %lx bsR5_2 %lx\n", bsR5, bsR5_2); + if (bsR5 != 0 && bsR5_2 != 0) + printf ("bsR5 %lx bsR5_2 %lx\n", bsR5, bsR5_2); +#endif + + *addr = CMD_READ_ARRAY; + *addr = CMD_RESUME; + + if ((rc = flash_error (result)) != ERR_OK) + goto outahere; +#if 0 + printf ("ok.\n"); + } else { /* it was protected */ + + printf ("protected!\n"); +#endif + } + } + +outahere: + /* allow flash to settle - wait 10 ms */ + udelay_masked (10000); + + if (iflag) + enable_interrupts (); + +#ifdef USE_920T_MMU + if (cflag) + dcache_enable (); +#endif + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash + */ + +volatile static int write_word (flash_info_t * info, ulong dest, + ulong data) +{ + vu_long *addr = (vu_long *) dest; + ulong result; + int rc = ERR_OK; + int iflag; + +#ifdef USE_920T_MMU + int cflag; +#endif + + /* + * Check if Flash is (sufficiently) erased + */ + result = *addr; + if ((result & data) != data) + return ERR_NOT_ERASED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ +#ifdef USE_920T_MMU + cflag = dcache_status (); + dcache_disable (); +#endif + iflag = disable_interrupts (); + + /* *addr = CMD_STATUS_RESET; */ + *addr = CMD_PROGRAM; + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); + + /* wait until flash is ready */ + do { + /* check timeout */ + if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) { + *addr = CMD_SUSPEND; + result = BIT_TIMEOUT; + break; + } + + *addr = CMD_STATUS_READ; + result = *addr; + } while (~result & BIT_BUSY); + + /* *addr = CMD_READ_ARRAY; */ + *addr = CMD_STATUS_READ; + result = *addr; + + rc = flash_error (result); + + if (iflag) + enable_interrupts (); + +#ifdef USE_920T_MMU + if (cflag) + dcache_enable (); +#endif + *addr = CMD_READ_ARRAY; + *addr = CMD_RESUME; + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash. + */ + +int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) +{ + ulong cp, wp, data; + int l; + int i, rc; + + 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 << 24); + } + for (; i < 4 && cnt > 0; ++i) { + data = (data >> 8) | (*src++ << 24); + --cnt; + ++cp; + } + for (; cnt == 0 && i < 4; ++i, ++cp) { + data = (data >> 8) | (*(uchar *) cp << 24); + } + + if ((rc = write_word (info, wp, data)) != 0) { + return (rc); + } + wp += 4; + } + + /* + * handle word aligned part + */ + while (cnt >= 4) { + data = *((vu_long *) src); + if ((rc = write_word (info, wp, data)) != 0) { + return (rc); + } + src += 4; + wp += 4; + cnt -= 4; + } + + if (cnt == 0) { + return ERR_OK; + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) { + data = (data >> 8) | (*src++ << 24); + --cnt; + } + for (; i < 4; ++i, ++cp) { + data = (data >> 8) | (*(uchar *) cp << 24); + } + + return write_word (info, wp, data); +} diff --git a/board/smdk2410/flash.c b/board/smdk2410/flash.c new file mode 100644 index 0000000000..c2ec2354b6 --- /dev/null +++ b/board/smdk2410/flash.c @@ -0,0 +1,446 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Alex Zuepke + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include + +ulong myflush(void); + + +#define FLASH_BANK_SIZE PHYS_FLASH_SIZE +#define MAIN_SECT_SIZE 0x10000 /* 64 KB */ + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + + +#define CMD_READ_ARRAY 0x000000F0 +#define CMD_UNLOCK1 0x000000AA +#define CMD_UNLOCK2 0x00000055 +#define CMD_ERASE_SETUP 0x00000080 +#define CMD_ERASE_CONFIRM 0x00000030 +#define CMD_PROGRAM 0x000000A0 +#define CMD_UNLOCK_BYPASS 0x00000020 + +#define MEM_FLASH_ADDR1 (*(volatile u16 *)(CFG_FLASH_BASE + (0x00000555 << 1))) +#define MEM_FLASH_ADDR2 (*(volatile u16 *)(CFG_FLASH_BASE + (0x000002AA << 1))) + +#define BIT_ERASE_DONE 0x00000080 +#define BIT_RDY_MASK 0x00000080 +#define BIT_PROGRAM_ERROR 0x00000020 +#define BIT_TIMEOUT 0x80000000 /* our flag */ + +#define READY 1 +#define ERR 2 +#define TMO 4 + +/*----------------------------------------------------------------------- + */ + +ulong flash_init(void) +{ + int i, j; + ulong size = 0; + + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) + { + ulong flashbase = 0; + flash_info[i].flash_id = +#if defined(CONFIG_AMD_LV400) + (AMD_MANUFACT & FLASH_VENDMASK) | + (AMD_ID_LV400B & FLASH_TYPEMASK); +#elif defined(CONFIG_AMD_LV800) + (AMD_MANUFACT & FLASH_VENDMASK) | + (AMD_ID_LV800B & FLASH_TYPEMASK); +#else +#error "Unknown flash configured" +#endif + flash_info[i].size = FLASH_BANK_SIZE; + flash_info[i].sector_count = CFG_MAX_FLASH_SECT; + memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT); + if (i == 0) + flashbase = PHYS_FLASH_1; + else + panic("configured to many flash banks!\n"); + for (j = 0; j < flash_info[i].sector_count; j++) + { + if (j <= 3) + { + /* 1st one is 16 KB */ + if (j == 0) + { + flash_info[i].start[j] = flashbase + 0; + } + + /* 2nd and 3rd are both 8 KB */ + if ((j == 1) || (j == 2)) + { + flash_info[i].start[j] = flashbase + 0x4000 + (j-1)*0x2000; + } + + /* 4th 32 KB */ + if (j == 3) + { + flash_info[i].start[j] = flashbase + 0x8000; + } + } + else + { + flash_info[i].start[j] = flashbase + (j - 3)*MAIN_SECT_SIZE; + } + } + size += flash_info[i].size; + } + + flash_protect(FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + _armboot_end_data - _armboot_start, + &flash_info[0]); + + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SIZE - 1, + &flash_info[0]); + + return size; +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t *info) +{ + int i; + + switch (info->flash_id & FLASH_VENDMASK) + { + case (AMD_MANUFACT & FLASH_VENDMASK): + printf("AMD: "); + break; + default: + printf("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) + { + case (AMD_ID_LV400B & FLASH_TYPEMASK): + printf("1x Amd29LV400BB (4Mbit)\n"); + break; + case (AMD_ID_LV800B & FLASH_TYPEMASK): + printf("1x Amd29LV800BB (8Mbit)\n"); + break; + default: + printf("Unknown Chip Type\n"); + 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: +} + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + ushort result; + int iflag, cflag, prot, sect; + int rc = ERR_OK; + int chip; + + /* first look for protection bits */ + + if (info->flash_id == FLASH_UNKNOWN) + return ERR_UNKNOWN_FLASH_TYPE; + + if ((s_first < 0) || (s_first > s_last)) { + return ERR_INVAL; + } + + if ((info->flash_id & FLASH_VENDMASK) != + (AMD_MANUFACT & FLASH_VENDMASK)) { + return ERR_UNKNOWN_FLASH_VENDOR; + } + + prot = 0; + for (sect=s_first; sect<=s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + if (prot) + return ERR_PROTECTED; + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + cflag = icache_status(); + icache_disable(); + iflag = disable_interrupts(); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last && !ctrlc(); sect++) + { + printf("Erasing sector %2d ... ", sect); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + if (info->protect[sect] == 0) + { /* not protected */ + vu_short *addr = (vu_short *)(info->start[sect]); + + MEM_FLASH_ADDR1 = CMD_UNLOCK1; + MEM_FLASH_ADDR2 = CMD_UNLOCK2; + MEM_FLASH_ADDR1 = CMD_ERASE_SETUP; + + MEM_FLASH_ADDR1 = CMD_UNLOCK1; + MEM_FLASH_ADDR2 = CMD_UNLOCK2; + *addr = CMD_ERASE_CONFIRM; + + /* wait until flash is ready */ + chip = 0; + + do + { + result = *addr; + + /* check timeout */ + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) + { + MEM_FLASH_ADDR1 = CMD_READ_ARRAY; + chip = TMO; + break; + } + + if (!chip && (result & 0xFFFF) & BIT_ERASE_DONE) + chip = READY; + + if (!chip && (result & 0xFFFF) & BIT_PROGRAM_ERROR) + chip = ERR; + + } while (!chip); + + MEM_FLASH_ADDR1 = CMD_READ_ARRAY; + + if (chip == ERR) + { + rc = ERR_PROG_ERROR; + goto outahere; + } + if (chip == TMO) + { + rc = ERR_TIMOUT; + goto outahere; + } + + printf("ok.\n"); + } + else /* it was protected */ + { + printf("protected!\n"); + } + } + + if (ctrlc()) + printf("User Interrupt!\n"); + +outahere: + /* allow flash to settle - wait 10 ms */ + udelay_masked(10000); + + if (iflag) + enable_interrupts(); + + if (cflag) + icache_enable(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash + */ + +volatile static int write_hword (flash_info_t *info, ulong dest, ushort data) +{ + vu_short *addr = (vu_short *)dest; + ushort result; + int rc = ERR_OK; + int cflag, iflag; + int chip; + + /* + * Check if Flash is (sufficiently) erased + */ + result = *addr; + if ((result & data) != data) + return ERR_NOT_ERASED; + + + /* + * Disable interrupts which might cause a timeout + * here. Remember that our exception vectors are + * at address 0 in the flash, and we don't want a + * (ticker) exception to happen while the flash + * chip is in programming mode. + */ + cflag = icache_status(); + icache_disable(); + iflag = disable_interrupts(); + + MEM_FLASH_ADDR1 = CMD_UNLOCK1; + MEM_FLASH_ADDR2 = CMD_UNLOCK2; + MEM_FLASH_ADDR1 = CMD_UNLOCK_BYPASS; + *addr = CMD_PROGRAM; + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked(); + + /* wait until flash is ready */ + chip = 0; + do + { + result = *addr; + + /* check timeout */ + if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) + { + chip = ERR | TMO; + break; + } + if (!chip && ((result & 0x80) == (data & 0x80))) + chip = READY; + + if (!chip && ((result & 0xFFFF) & BIT_PROGRAM_ERROR)) + { + result = *addr; + + if ((result & 0x80) == (data & 0x80)) + chip = READY; + else + chip = ERR; + } + + } while (!chip); + + *addr = CMD_READ_ARRAY; + + if (chip == ERR || *addr != data) + rc = ERR_PROG_ERROR; + + if (iflag) + enable_interrupts(); + + if (cflag) + icache_enable(); + + return rc; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash. + */ + +int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp; + int l; + int i, rc; + ushort data; + + wp = (addr & ~1); /* get lower word aligned address */ + + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + data = 0; + for (i=0, cp=wp; i> 8) | (*(uchar *)cp << 8); + } + for (; i<2 && cnt>0; ++i) { + data = (data >> 8) | (*src++ << 8); + --cnt; + ++cp; + } + for (; cnt==0 && i<2; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 8); + } + + if ((rc = write_hword(info, wp, data)) != 0) { + return (rc); + } + wp += 2; + } + + /* + * handle word aligned part + */ + while (cnt >= 2) { + data = *((vu_short*)src); + if ((rc = write_hword(info, wp, data)) != 0) { + return (rc); + } + src += 2; + wp += 2; + cnt -= 2; + } + + if (cnt == 0) { + return ERR_OK; + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) { + data = (data >> 8) | (*src++ << 8); + --cnt; + } + for (; i<2; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 8); + } + + return write_hword(info, wp, data); +} -- 2.39.5