X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=board%2Fcsb226%2Fflash.c;h=e10347067c807411c3279ce6f4899d62c1bde389;hb=1fed668b3fb9c35932f58af00ff5539239fa4e1d;hp=6b0e51ac4354778c457476a2551fec58f5e396de;hpb=5f535fe170e2cd90ee65922cbad1a5428d85a9e6;p=u-boot diff --git a/board/csb226/flash.c b/board/csb226/flash.c index 6b0e51ac43..e10347067c 100644 --- a/board/csb226/flash.c +++ b/board/csb226/flash.c @@ -9,6 +9,9 @@ * (C) Copyright 2002 * Robert Schwebel, Pengutronix, * + * (C) Copyright 2003 (2 x 16 bit Flash bank patches) + * Rolf Peukert, IMMS gGmbH, + * * See file CREDITS for list of people who contributed to this * project. * @@ -19,7 +22,7 @@ * * 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 + * 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 @@ -32,9 +35,9 @@ #include #define FLASH_BANK_SIZE 0x02000000 -#define MAIN_SECT_SIZE 0x40000 /* 2x16 = 256k per sector */ +#define MAIN_SECT_SIZE 0x40000 /* 2x16 = 256k per sector */ -flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; +flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /** @@ -48,22 +51,22 @@ ulong flash_init(void) int i, j; ulong size = 0; - for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { + for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { ulong flashbase = 0; flash_info[i].flash_id = - (INTEL_MANUFACT & FLASH_VENDMASK) | - (INTEL_ID_28F128J3 & FLASH_TYPEMASK); + (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); + flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT; + memset(flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT); switch (i) { - case 0: - flashbase = PHYS_FLASH_1; - break; - default: - panic("configured too many flash banks!\n"); - break; + case 0: + flashbase = PHYS_FLASH_1; + break; + default: + panic("configured too 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; @@ -73,13 +76,13 @@ ulong flash_init(void) /* Protect monitor and environment sectors */ flash_protect(FLAG_PROTECT_SET, - CFG_FLASH_BASE, - CFG_FLASH_BASE + monitor_flash_len - 1, + CONFIG_SYS_FLASH_BASE, + CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1, &flash_info[0]); flash_protect(FLAG_PROTECT_SET, - CFG_ENV_ADDR, - CFG_ENV_ADDR + CFG_ENV_SIZE - 1, + CONFIG_ENV_ADDR, + CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]); return size; @@ -88,34 +91,30 @@ ulong flash_init(void) /** * flash_print_info: - print information about the flash situation - * - * @param info: */ 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; + 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"); - return; + case (INTEL_ID_28F128J3 & FLASH_TYPEMASK): + printf("28F128J3 (128Mbit)\n"); + break; + default: + printf("Unknown Chip Type\n"); + return; } printf(" Size: %ld MB in %d Sectors\n", @@ -123,10 +122,10 @@ void flash_print_info (flash_info_t *info) printf(" Sector Start Addresses:"); for (i = 0; i < info->sector_count; i++) { - if ((i % 5) == 0) printf ("\n "); + if ((i % 5) == 0) printf ("\n "); printf (" %08lX%s", info->start[i], - info->protect[i] ? " (RO)" : " "); + info->protect[i] ? " (RO)" : " "); } printf ("\n"); info++; @@ -136,13 +135,13 @@ void flash_print_info (flash_info_t *info) /** * flash_erase: - erase flash sectors - * */ int flash_erase(flash_info_t *info, int s_first, int s_last) { int flag, prot, sect; int rc = ERR_OK; + ulong start; if (info->flash_id == FLASH_UNKNOWN) return ERR_UNKNOWN_FLASH_TYPE; @@ -177,40 +176,35 @@ int flash_erase(flash_info_t *info, int s_first, int s_last) printf("Erasing sector %2d ... ", sect); /* arm simple, non interrupt dependent timer */ - reset_timer_masked(); + start = get_timer(0); - if (info->protect[sect] == 0) { /* not protected */ + if (info->protect[sect] == 0) { /* not protected */ u32 * volatile addr = (u32 * volatile)(info->start[sect]); - /* erase sector: */ + /* erase sector: */ /* The strata flashs are aligned side by side on */ /* the data bus, so we have to write the commands */ - /* to both chips here: */ + /* to both chips here: */ *addr = 0x00200020; /* erase setup */ *addr = 0x00D000D0; /* erase confirm */ while ((*addr & 0x00800080) != 0x00800080) { - if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) { + if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) { *addr = 0x00B000B0; /* suspend erase*/ *addr = 0x00FF00FF; /* read mode */ rc = ERR_TIMOUT; goto outahere; } } - *addr = 0x00500050; /* clear status register cmd. */ - *addr = 0x00FF00FF; /* resest to read mode */ - + *addr = 0x00FF00FF; /* reset to read mode */ } - printf("ok.\n"); } - if (ctrlc()) printf("User Interrupt!\n"); - outahere: - +outahere: /* allow flash to settle - wait 10 ms */ udelay_masked(10000); @@ -219,21 +213,19 @@ int flash_erase(flash_info_t *info, int s_first, int s_last) return rc; } - /** - * write_word: - copy memory to flash - * - * @param info: - * @param dest: - * @param data: - * @return: + * write_long: - copy memory to flash, assume a bank of 2 devices with 16bit each */ -static int write_word (flash_info_t *info, ulong dest, ushort data) +static int write_long (flash_info_t *info, ulong dest, ulong data) { u32 * volatile addr = (u32 * volatile)dest, val; int rc = ERR_OK; int flag; + ulong start; + + /* read array command - just for the case... */ + *addr = 0x00FF00FF; /* Check if Flash is (sufficiently) erased */ if ((*addr & data) != data) return ERR_NOT_ERASED; @@ -248,40 +240,42 @@ static int write_word (flash_info_t *info, ulong dest, ushort data) flag = disable_interrupts(); /* clear status register command */ - *addr = 0x50; + *addr = 0x00500050; /* program set-up command */ - *addr = 0x40; + *addr = 0x00400040; /* latch address/data */ *addr = data; /* arm simple, non interrupt dependent timer */ - reset_timer_masked(); + start = get_timer(0); /* wait while polling the status register */ - while(((val = *addr) & 0x80) != 0x80) { - if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) { + while(((val = *addr) & 0x00800080) != 0x00800080) { + if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { rc = ERR_TIMOUT; - *addr = 0xB0; /* suspend program command */ + /* suspend program command */ + *addr = 0x00B000B0; goto outahere; } } - if(val & 0x1A) { /* check for error */ + /* check for errors */ + if(val & 0x001A001A) { printf("\nFlash write error %02x at address %08lx\n", (int)val, (unsigned long)dest); - if(val & (1<<3)) { + if(val & 0x00080008) { printf("Voltage range error.\n"); rc = ERR_PROG_ERROR; goto outahere; } - if(val & (1<<1)) { + if(val & 0x00020002) { printf("Device protect error.\n"); rc = ERR_PROTECTED; goto outahere; } - if(val & (1<<4)) { + if(val & 0x00100010) { printf("Programming error.\n"); rc = ERR_PROG_ERROR; goto outahere; @@ -290,9 +284,9 @@ static int write_word (flash_info_t *info, ulong dest, ushort data) goto outahere; } - outahere: - - *addr = 0xFF; /* read array command */ +outahere: + /* read array command */ + *addr = 0x00FF00FF; if (flag) enable_interrupts(); return rc; @@ -304,20 +298,21 @@ static int write_word (flash_info_t *info, ulong dest, ushort data) * * @param info: * @param src: source of copy transaction - * @param addr: where to copy to - * @param cnt: number of bytes to copy + * @param addr: where to copy to + * @param cnt: number of bytes to copy * * @return error code */ +/* "long" version, uses 32bit words */ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) { ulong cp, wp; - ushort data; + ulong data; int l; int i, rc; - wp = (addr & ~1); /* get lower word aligned address */ + wp = (addr & ~3); /* get lower word aligned address */ /* * handle unaligned start bytes @@ -325,35 +320,34 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) if ((l = addr - wp) != 0) { data = 0; for (i=0, cp=wp; i> 8) | (*(uchar *)cp << 8); + data = (data >> 8) | (*(uchar *)cp << 24); } - for (; i<2 && cnt>0; ++i) { - data = (data >> 8) | (*src++ << 8); + for (; i<4 && cnt>0; ++i) { + data = (data >> 8) | (*src++ << 24); --cnt; ++cp; } - for (; cnt==0 && i<2; ++i, ++cp) { - data = (data >> 8) | (*(uchar *)cp << 8); + for (; cnt==0 && i<4; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 24); } - if ((rc = write_word(info, wp, data)) != 0) { + if ((rc = write_long(info, wp, data)) != 0) { return (rc); } - wp += 2; + wp += 4; } /* * handle word aligned part */ - while (cnt >= 2) { - /* data = *((vushort*)src); */ - data = *((ushort*)src); - if ((rc = write_word(info, wp, data)) != 0) { + while (cnt >= 4) { + data = *((ulong*)src); + if ((rc = write_long(info, wp, data)) != 0) { return (rc); } - src += 2; - wp += 2; - cnt -= 2; + src += 4; + wp += 4; + cnt -= 4; } if (cnt == 0) return ERR_OK; @@ -362,13 +356,13 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) * handle unaligned tail bytes */ data = 0; - for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) { - data = (data >> 8) | (*src++ << 8); + for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { + data = (data >> 8) | (*src++ << 24); --cnt; } - for (; i<2; ++i, ++cp) { - data = (data >> 8) | (*(uchar *)cp << 8); + for (; i<4; ++i, ++cp) { + data = (data >> 8) | (*(uchar *)cp << 24); } - return write_word(info, wp, data); + return write_long(info, wp, data); }