X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=board%2Flubbock%2Fflash.c;h=ba82892dde557e22b1ea97b1e75828e17460c4ed;hb=6841785a0bb0f38175456a923edd634fb7dd6947;hp=84c09a853c7152e404dbd02afbe3ce0374269420;hpb=ea8015b852305387b379a88d256ffe80d373d20a;p=u-boot diff --git a/board/lubbock/flash.c b/board/lubbock/flash.c index 84c09a853c..ba82892dde 100644 --- a/board/lubbock/flash.c +++ b/board/lubbock/flash.c @@ -1,10 +1,9 @@ /* - * (C) Copyright 2002 + * (C) Copyright 2001 * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Marius Groeger + * (C) Copyright 2001 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. @@ -26,338 +25,407 @@ */ #include +#include -#define FLASH_BANK_SIZE 0x2000000 -#define MAIN_SECT_SIZE 0x40000 /* 2x16 = 256k per sector */ -flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ +/* Board support for 1 or 2 flash devices */ +#define FLASH_PORT_WIDTH32 +#undef FLASH_PORT_WIDTH16 + +#ifdef FLASH_PORT_WIDTH16 +#define FLASH_PORT_WIDTH ushort +#define FLASH_PORT_WIDTHV vu_short +#define SWAP(x) __swab16(x) +#else +#define FLASH_PORT_WIDTH ulong +#define FLASH_PORT_WIDTHV vu_long +#define SWAP(x) __swab32(x) +#endif + +#define FPW FLASH_PORT_WIDTH +#define FPWV FLASH_PORT_WIDTHV + +#define mb() __asm__ __volatile__ ("" : : : "memory") + +/*----------------------------------------------------------------------- + * Functions + */ +static ulong flash_get_size (FPW *addr, flash_info_t *info); +static int write_data (flash_info_t *info, ulong dest, FPW data); +static void flash_get_offsets (ulong base, flash_info_t *info); +void inline spin_wheel (void); /*----------------------------------------------------------------------- */ -ulong flash_init(void) +unsigned long 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; + int i; + ulong size = 0; + + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { + switch (i) { + case 0: + flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]); + flash_get_offsets (PHYS_FLASH_1, &flash_info[i]); + break; + case 1: + flash_get_size ((FPW *) PHYS_FLASH_2, &flash_info[i]); + flash_get_offsets (PHYS_FLASH_2, &flash_info[i]); + break; + default: + panic ("configured too many flash banks!\n"); + break; + } + size += flash_info[i].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; + + /* Protect monitor and environment sectors + */ + flash_protect ( FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + monitor_flash_len - 1, + &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) +static void flash_get_offsets (ulong base, 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 i; + + if (info->flash_id == FLASH_UNKNOWN) { + return; + } + + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { + for (i = 0; i < info->sector_count; i++) { + info->start[i] = base + (i * PHYS_FLASH_SECT_SIZE); + info->protect[i] = 0; + } + } } /*----------------------------------------------------------------------- */ - -int flash_erase (flash_info_t *info, int s_first, int s_last) +void flash_print_info (flash_info_t *info) { - int flag, prot, sect; - int rc = ERR_OK; + int i; - 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_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + return; + } - if ((info->flash_id & FLASH_VENDMASK) != - (INTEL_MANUFACT & FLASH_VENDMASK)) { - return ERR_UNKNOWN_FLASH_VENDOR; - } + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_INTEL: + printf ("INTEL "); + break; + default: + printf ("Unknown Vendor "); + break; + } - prot = 0; - for (sect=s_first; sect<=s_last; ++sect) { - if (info->protect[sect]) { - prot++; + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_28F128J3A: + printf ("28F128J3A\n"); + break; + default: + printf ("Unknown Chip Type\n"); + break; } - } - 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(); + printf (" Size: %ld MB in %d Sectors\n", + info->size >> 20, info->sector_count); - /* Start erase on unprotected sectors */ - for (sect = s_first; sect<=s_last && !ctrlc(); sect++) { + printf (" Sector Start Addresses:"); + for (i = 0; i < info->sector_count; ++i) { + if ((i % 5) == 0) + printf ("\n "); + printf (" %08lX%s", + info->start[i], + info->protect[i] ? " (RO)" : " "); + } + printf ("\n"); + return; +} - printf("Erasing sector %2d ... ", sect); +/* + * The following code cannot be run from FLASH! + */ +static ulong flash_get_size (FPW *addr, flash_info_t *info) +{ + volatile FPW value; - /* arm simple, non interrupt dependent timer */ - reset_timer_masked(); + /* Write auto select command: read Manufacturer ID */ + addr[0x5555] = (FPW) 0x00AA00AA; + addr[0x2AAA] = (FPW) 0x00550055; + addr[0x5555] = (FPW) 0x00900090; - if (info->protect[sect] == 0) { /* not protected */ - vu_short *addr = (vu_short *)(info->start[sect]); + mb (); + value = addr[0]; - *addr = 0x20; /* erase setup */ - *addr = 0xD0; /* erase confirm */ + switch (value) { - 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; - } - } + case (FPW) INTEL_MANUFACT: + info->flash_id = FLASH_MAN_INTEL; + break; - /* clear status register command */ - *addr = 0x50; - /* reset to read mode */ - *addr = 0xFF; + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ + return (0); /* no or unknown flash */ } - printf("ok.\n"); - } - if (ctrlc()) - printf("User Interrupt!\n"); -outahere: + mb (); + value = addr[1]; /* device ID */ - /* allow flash to settle - wait 10 ms */ - udelay_masked(10000); + switch (value) { + + case (FPW) INTEL_ID_28F128J3A: + info->flash_id += FLASH_28F128J3A; + info->sector_count = 128; + info->size = 0x02000000; + break; /* => 16 MB */ + + default: + info->flash_id = FLASH_UNKNOWN; + break; + } + + if (info->sector_count > CFG_MAX_FLASH_SECT) { + printf ("** ERROR: sector count %d > max (%d) **\n", + info->sector_count, CFG_MAX_FLASH_SECT); + info->sector_count = CFG_MAX_FLASH_SECT; + } - if (flag) - enable_interrupts(); + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ - return rc; + return (info->size); } + /*----------------------------------------------------------------------- - * Copy memory to flash */ -static int write_word (flash_info_t *info, ulong dest, ushort data) +int flash_erase (flash_info_t *info, int s_first, int s_last) { - 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; + int flag, prot, sect; + ulong type, start, last; + int 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; + } + + type = (info->flash_id & FLASH_VENDMASK); + if ((type != FLASH_MAN_INTEL)) { + printf ("Can't erase unknown flash type %08lx - aborted\n", + info->flash_id); + return 1; + } + + prot = 0; + for (sect = s_first; sect <= s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + + if (prot) { + printf ("- Warning: %d protected sectors will not be erased!\n", + prot); + } else { + printf ("\n"); + } + + start = get_timer (0); + last = start; + + /* 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 */ + FPWV *addr = (FPWV *) (info->start[sect]); + FPW status; + + printf ("Erasing sector %2d ... ", sect); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); + + *addr = (FPW) 0x00500050; /* clear status register */ + *addr = (FPW) 0x00200020; /* erase setup */ + *addr = (FPW) 0x00D000D0; /* erase confirm */ + + while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { + if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + *addr = (FPW) 0x00B000B0; /* suspend erase */ + *addr = (FPW) 0x00FF00FF; /* reset to read mode */ + rcode = 1; + break; + } + } + + *addr = 0x00500050; /* clear status register cmd. */ + *addr = 0x00FF00FF; /* resest to read mode */ + + printf (" done\n"); + } } - } - - 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; + return rcode; } /*----------------------------------------------------------------------- - * Copy memory to flash. + * Copy memory to flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + * 4 - Flash not identified */ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) { - ulong cp, wp; - ushort data; - int l; - int i, rc; + ulong cp, wp; + FPW data; + int count, i, l, rc, port_width; - wp = (addr & ~1); /* get lower word aligned address */ + if (info->flash_id == FLASH_UNKNOWN) { + return 4; + } +/* get lower word aligned address */ +#ifdef FLASH_PORT_WIDTH16 + wp = (addr & ~1); + port_width = 2; +#else + wp = (addr & ~3); + port_width = 4; +#endif + + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + data = 0; + for (i = 0, cp = wp; i < l; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + for (; i < port_width && cnt > 0; ++i) { + data = (data << 8) | *src++; + --cnt; + ++cp; + } + for (; cnt == 0 && i < port_width; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } - /* - * handle unaligned start bytes - */ - if ((l = addr - wp) != 0) { - data = 0; - for (i=0, cp=wp; i> 8) | (*(uchar *)cp << 8); + if ((rc = write_data (info, wp, SWAP (data))) != 0) { + return (rc); + } + wp += port_width; } - for (; i<2 && cnt>0; ++i) { - data = (data >> 8) | (*src++ << 8); - --cnt; - ++cp; + + /* + * handle word aligned part + */ + count = 0; + while (cnt >= port_width) { + data = 0; + for (i = 0; i < port_width; ++i) { + data = (data << 8) | *src++; + } + if ((rc = write_data (info, wp, SWAP (data))) != 0) { + return (rc); + } + wp += port_width; + cnt -= port_width; + if (count++ > 0x800) { + spin_wheel (); + count = 0; + } } - for (; cnt==0 && i<2; ++i, ++cp) { - data = (data >> 8) | (*(uchar *)cp << 8); + + if (cnt == 0) { + return (0); } - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); + /* + * handle unaligned tail bytes + */ + data = 0; + for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i < port_width; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + + return (write_data (info, wp, SWAP (data))); +} + +/*----------------------------------------------------------------------- + * Write a word or halfword to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +static int write_data (flash_info_t *info, ulong dest, FPW data) +{ + FPWV *addr = (FPWV *) dest; + ulong status; + int flag; + + /* Check if Flash is (sufficiently) erased */ + if ((*addr & data) != data) { + printf ("not erased at %08lx (%lx)\n", (ulong) addr, *addr); + return (2); } - wp += 2; - } - - /* - * handle word aligned part - */ - while (cnt >= 2) { - data = *((vu_short*)src); - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + *addr = (FPW) 0x00400040; /* write setup */ + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); + + /* wait while polling the status register */ + while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { + if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) { + *addr = (FPW) 0x00FF00FF; /* restore read mode */ + return (1); + } } - 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); + + *addr = (FPW) 0x00FF00FF; /* restore read mode */ + + return (0); +} + +void inline spin_wheel (void) +{ + static int p = 0; + static char w[] = "\\/-"; + + printf ("\010%c", w[p]); + (++p == 3) ? (p = 0) : 0; }