diff options
Diffstat (limited to 'qemu/roms/u-boot/board/pcs440ep/flash.c')
| -rw-r--r-- | qemu/roms/u-boot/board/pcs440ep/flash.c | 607 |
1 files changed, 0 insertions, 607 deletions
diff --git a/qemu/roms/u-boot/board/pcs440ep/flash.c b/qemu/roms/u-boot/board/pcs440ep/flash.c deleted file mode 100644 index 8c5e94fbf..000000000 --- a/qemu/roms/u-boot/board/pcs440ep/flash.c +++ /dev/null @@ -1,607 +0,0 @@ -/* - * (C) Copyright 2006 - * Stefan Roese, DENX Software Engineering, sr@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/processor.h> - -#ifndef CONFIG_SYS_FLASH_READ0 -#define CONFIG_SYS_FLASH_READ0 0x0000 /* 0 is standard */ -#define CONFIG_SYS_FLASH_READ1 0x0001 /* 1 is standard */ -#define CONFIG_SYS_FLASH_READ2 0x0002 /* 2 is standard */ -#endif - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ - -/* - * Functions - */ -static int write_word(flash_info_t *info, ulong dest, ulong data); -static ulong flash_get_size(vu_long *addr, flash_info_t *info); - -unsigned long flash_init(void) -{ - unsigned long size_b0, size_b1; - int i; - unsigned long base_b0, base_b1; - - /* Init: no FLASHes known */ - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { - flash_info[i].flash_id = FLASH_UNKNOWN; - } - - /* Static FLASH Bank configuration here - FIXME XXX */ - - base_b0 = FLASH_BASE0_PRELIM; - size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]); - - if (flash_info[0].flash_id == FLASH_UNKNOWN) { - printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", - size_b0, size_b0 << 20); - } - - base_b1 = FLASH_BASE1_PRELIM; - size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]); - - return (size_b0 + size_b1); -} - -void flash_print_info(flash_info_t *info) -{ - int i; - int k; - int size; - int erased; - volatile unsigned long *flash; - - if (info->flash_id == FLASH_UNKNOWN) { - printf ("missing or unknown FLASH type\n"); - return; - } - - switch (info->flash_id & FLASH_VENDMASK) { - case FLASH_MAN_AMD: printf ("AMD "); break; - case FLASH_MAN_FUJ: printf ("FUJITSU "); break; - case FLASH_MAN_SST: printf ("SST "); break; - case FLASH_MAN_STM: printf ("ST Micro"); break; - case FLASH_MAN_EXCEL: printf ("Excel Semiconductor "); break; - case FLASH_MAN_MX: printf ("MXIC "); break; - default: printf ("Unknown Vendor "); break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n"); - break; - case FLASH_AM040: printf ("AM29LV040B (4 Mbit, uniform sector size)\n"); - break; - case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n"); - break; - case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n"); - break; - case FLASH_AM320T: printf ("AM29LV320T (32 M, top sector)\n"); - break; - case FLASH_AM320B: printf ("AM29LV320B (32 M, bottom sector)\n"); - break; - case FLASH_AMDL322T: printf ("AM29DL322T (32 M, top sector)\n"); - break; - case FLASH_AMDL322B: printf ("AM29DL322B (32 M, bottom sector)\n"); - break; - case FLASH_AMDL323T: printf ("AM29DL323T (32 M, top sector)\n"); - break; - case FLASH_AMDL323B: printf ("AM29DL323B (32 M, bottom sector)\n"); - break; - case FLASH_SST020: printf ("SST39LF/VF020 (2 Mbit, uniform sector size)\n"); - break; - case FLASH_SST040: printf ("SST39LF/VF040 (4 Mbit, uniform sector size)\n"); - break; - case STM_ID_M29W040B: printf ("ST Micro M29W040B (4 Mbit, uniform sector size)\n"); - break; - default: printf ("Unknown Chip Type\n"); - 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) { -#ifdef CONFIG_SYS_FLASH_EMPTY_INFO - /* - * Check if whole sector is erased - */ - if (i != (info->sector_count-1)) - size = info->start[i+1] - info->start[i]; - else - size = info->start[0] + info->size - info->start[i]; - erased = 1; - flash = (volatile unsigned long *)info->start[i]; - size = size >> 2; /* divide by 4 for longword access */ - for (k=0; k<size; k++) { - if (*flash++ != 0xffffffff) { - erased = 0; - break; - } - } - - if ((i % 5) == 0) - printf ("\n "); - /* print empty and read-only info */ - printf (" %08lX%s%s", - info->start[i], - erased ? " E" : " ", - info->protect[i] ? "RO " : " "); -#else - if ((i % 5) == 0) - printf ("\n "); - printf (" %08lX%s", - info->start[i], - info->protect[i] ? " (RO)" : " "); -#endif - - } - printf ("\n"); - return; -} - -/* - * The following code cannot be run from FLASH! - */ -static ulong flash_get_size(vu_long *addr, flash_info_t *info) -{ - short i; - short n; - volatile CONFIG_SYS_FLASH_WORD_SIZE value; - ulong base = (ulong)addr; - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)addr; - - /* Write auto select command: read Manufacturer ID */ - addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; - addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; - addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00900090; - - value = addr2[CONFIG_SYS_FLASH_READ0]; - - switch (value) { - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_MANUFACT: - info->flash_id = FLASH_MAN_AMD; - break; - case (CONFIG_SYS_FLASH_WORD_SIZE)FUJ_MANUFACT: - info->flash_id = FLASH_MAN_FUJ; - break; - case (CONFIG_SYS_FLASH_WORD_SIZE)SST_MANUFACT: - info->flash_id = FLASH_MAN_SST; - break; - case (CONFIG_SYS_FLASH_WORD_SIZE)STM_MANUFACT: - info->flash_id = FLASH_MAN_STM; - break; - case (CONFIG_SYS_FLASH_WORD_SIZE)EXCEL_MANUFACT: - info->flash_id = FLASH_MAN_EXCEL; - break; - case (CONFIG_SYS_FLASH_WORD_SIZE)MX_MANUFACT: - info->flash_id = FLASH_MAN_MX; - break; - default: - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - return (0); /* no or unknown flash */ - } - - value = addr2[CONFIG_SYS_FLASH_READ1]; /* device ID */ - - switch (value) { - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV400T: - info->flash_id += FLASH_AM400T; - info->sector_count = 11; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV400B: - info->flash_id += FLASH_AM400B; - info->sector_count = 11; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 0.5 MB */ - break; - case (CONFIG_SYS_FLASH_WORD_SIZE)STM_ID_M29W040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 0,5 MB */ - break; - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV800T: - info->flash_id += FLASH_AM800T; - info->sector_count = 19; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV800B: - info->flash_id += FLASH_AM800B; - info->sector_count = 19; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV160T: - info->flash_id += FLASH_AM160T; - info->sector_count = 35; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV160B: - info->flash_id += FLASH_AM160B; - info->sector_count = 35; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV320T: - info->flash_id += FLASH_AM320T; - info->sector_count = 71; - info->size = 0x00400000; - break; /* => 4 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV320B: - info->flash_id += FLASH_AM320B; - info->sector_count = 71; - info->size = 0x00400000; - break; /* => 4 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_DL322T: - info->flash_id += FLASH_AMDL322T; - info->sector_count = 71; - info->size = 0x00400000; - break; /* => 4 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_DL322B: - info->flash_id += FLASH_AMDL322B; - info->sector_count = 71; - info->size = 0x00400000; - break; /* => 4 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_DL323T: - info->flash_id += FLASH_AMDL323T; - info->sector_count = 71; - info->size = 0x00400000; - break; /* => 4 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_DL323B: - info->flash_id += FLASH_AMDL323B; - info->sector_count = 71; - info->size = 0x00400000; - break; /* => 4 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)SST_ID_xF020: - info->flash_id += FLASH_SST020; - info->sector_count = 64; - info->size = 0x00040000; - break; /* => 256 kB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE)SST_ID_xF040: - info->flash_id += FLASH_SST040; - info->sector_count = 128; - info->size = 0x00080000; - break; /* => 512 kB */ - - default: - info->flash_id = FLASH_UNKNOWN; - return (0); /* => no or unknown flash */ - - } - - /* set up sector start address table */ - if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM640U)) { - for (i = 0; i < info->sector_count; i++) - info->start[i] = base + (i * 0x00001000); - } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) { - for (i = 0; i < info->sector_count; i++) - info->start[i] = base + (i * 0x00010000); - } else if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL322B) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL323B) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL324B)) { - /* set sector offsets for bottom boot block type */ - for (i=0; i<8; ++i) { /* 8 x 8k boot sectors */ - info->start[i] = base; - base += 8 << 10; - } - while (i < info->sector_count) { /* 64k regular sectors */ - info->start[i] = base; - base += 64 << 10; - ++i; - } - } else if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL322T) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL323T) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL324T)) { - /* set sector offsets for top boot block type */ - base += info->size; - i = info->sector_count; - for (n=0; n<8; ++n) { /* 8 x 8k boot sectors */ - base -= 8 << 10; - --i; - info->start[i] = base; - } - while (i > 0) { /* 64k regular sectors */ - base -= 64 << 10; - --i; - info->start[i] = base; - } - } else { - if (info->flash_id & FLASH_BTYPE) { - /* set sector offsets for bottom boot block type */ - info->start[0] = base + 0x00000000; - info->start[1] = base + 0x00004000; - info->start[2] = base + 0x00006000; - info->start[3] = base + 0x00008000; - for (i = 4; i < info->sector_count; i++) { - info->start[i] = base + (i * 0x00010000) - 0x00030000; - } - } else { - /* set sector offsets for top boot block type */ - i = info->sector_count - 1; - info->start[i--] = base + info->size - 0x00004000; - info->start[i--] = base + info->size - 0x00006000; - info->start[i--] = base + info->size - 0x00008000; - for (; i >= 0; i--) { - info->start[i] = base + i * 0x00010000; - } - } - } - - /* check for protected sectors */ - for (i = 0; i < info->sector_count; i++) { - /* read sector protection at sector address, (A7 .. A0) = 0x02 */ - /* D0 = 1 if protected */ - addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]); - if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_AMD) - info->protect[i] = 0; - else - info->protect[i] = addr2[CONFIG_SYS_FLASH_READ2] & 1; - } - - /* - * Prevent writes to uninitialized FLASH. - */ - if (info->flash_id != FLASH_UNKNOWN) { - addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)info->start[0]; - *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE)0x00F000F0; /* reset bank */ - } - - return (info->size); -} - - -int flash_erase(flash_info_t *info, int s_first, int s_last) -{ - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]); - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2; - int flag, prot, sect, l_sect; - ulong start, now, last; - - if ((s_first < 0) || (s_first > s_last)) { - if (info->flash_id == FLASH_UNKNOWN) - printf ("- missing\n"); - else - printf ("- no sectors to erase\n"); - return 1; - } - - if (info->flash_id == FLASH_UNKNOWN) { - printf ("Can't erase unknown flash type - aborted\n"); - return 1; - } - - prot = 0; - for (sect=s_first; sect<=s_last; ++sect) - if (info->protect[sect]) - prot++; - - if (prot) - printf ("- Warning: %d protected sectors will not be erased!\n", prot); - else - printf ("\n"); - - l_sect = -1; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect<=s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[sect]); - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) { - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; - addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080; - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; - addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; - addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00300030; /* sector erase */ - - /* re-enable interrupts if necessary */ - if (flag) { - enable_interrupts(); - flag = 0; - } - - /* data polling for D7 */ - start = get_timer (0); - while ((addr2[0] & (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080) != - (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080) { - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) - return (1); - } - } else { - if (sect == s_first) { - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; - addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080; - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; - addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; - } - addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00300030; /* sector erase */ - } - l_sect = sect; - } - } - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* wait at least 80us - let's wait 1 ms */ - udelay (1000); - - /* - * We wait for the last triggered sector - */ - if (l_sect < 0) - goto DONE; - - start = get_timer (0); - last = start; - addr = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[l_sect]); - while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080) != (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080) { - if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - return 1; - } - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - putc ('.'); - last = now; - } - } - -DONE: - /* reset to read mode */ - addr = (CONFIG_SYS_FLASH_WORD_SIZE *)info->start[0]; - addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00F000F0; /* reset bank */ - - printf (" done\n"); - return 0; -} - -/* - * Copy memory to flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt) -{ - ulong cp, wp, data; - int i, l, 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); - } - for (; i<4 && cnt>0; ++i) { - data = (data << 8) | *src++; - --cnt; - ++cp; - } - for (; cnt==0 && i<4; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); - } - wp += 4; - } - - /* - * handle word aligned part - */ - while (cnt >= 4) { - data = 0; - for (i=0; i<4; ++i) - data = (data << 8) | *src++; - if ((rc = write_word(info, wp, data)) != 0) - return (rc); - wp += 4; - cnt -= 4; - } - - if (cnt == 0) - return (0); - - /* - * handle unaligned tail bytes - */ - data = 0; - for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { - data = (data << 8) | *src++; - --cnt; - } - for (; i<4; ++i, ++cp) - data = (data << 8) | (*(uchar *)cp); - - return (write_word(info, wp, data)); -} - -/* - * Write a word to Flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -static int write_word(flash_info_t *info, ulong dest, ulong data) -{ - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]); - volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *)dest; - volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)&data; - ulong start; - int flag; - int i; - - /* Check if Flash is (sufficiently) erased */ - if ((*((vu_long *)dest) & data) != data) - return (2); - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - for (i=0; i<4/sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) { - addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; - addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; - addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00A000A0; - - dest2[i] = data2[i]; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* data polling for D7 */ - start = get_timer (0); - while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080) != - (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080)) { - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) - return (1); - } - } - - return (0); -} |