diff options
Diffstat (limited to 'board/fads/flash.c')
| -rw-r--r-- | board/fads/flash.c | 544 |
1 files changed, 0 insertions, 544 deletions
diff --git a/board/fads/flash.c b/board/fads/flash.c deleted file mode 100644 index ea2f713ca6..0000000000 --- a/board/fads/flash.c +++ /dev/null @@ -1,544 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <mpc8xx.h> - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ - -#if defined(CONFIG_ENV_IS_IN_FLASH) -# ifndef CONFIG_ENV_ADDR -# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET) -# endif -# ifndef CONFIG_ENV_SIZE -# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE -# endif -# ifndef CONFIG_ENV_SECT_SIZE -# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE -# endif -#endif - -#define QUAD_ID(id) ((((ulong)(id) & 0xFF) << 24) | \ - (((ulong)(id) & 0xFF) << 16) | \ - (((ulong)(id) & 0xFF) << 8) | \ - (((ulong)(id) & 0xFF) << 0) \ - ) - -/*----------------------------------------------------------------------- - * Functions - */ -static ulong flash_get_size (vu_long * addr, flash_info_t * info); -static int write_word (flash_info_t * info, ulong dest, ulong data); - -/*----------------------------------------------------------------------- - */ -unsigned long flash_init (void) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *memctl = &immap->im_memctl; - vu_long *bcsr = (vu_long *)BCSR_ADDR; - unsigned long pd_size, total_size, bsize, or_am; - int i; - - /* Init: no FLASHes known */ - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { - flash_info[i].flash_id = FLASH_UNKNOWN; - flash_info[i].size = 0; - flash_info[i].sector_count = 0; - flash_info[i].start[0] = 0xFFFFFFFF; /* For TFTP */ - } - - switch ((bcsr[2] & BCSR2_FLASH_PD_MASK) >> BCSR2_FLASH_PD_SHIFT) { - case 2: - case 4: - case 6: - pd_size = 0x800000; - or_am = 0xFF800000; - break; - - case 5: - case 7: - pd_size = 0x400000; - or_am = 0xFFC00000; - break; - - case 8: - pd_size = 0x200000; - or_am = 0xFFE00000; - break; - - default: - pd_size = 0; - or_am = 0xFFE00000; - printf("## Unsupported flash detected by BCSR: 0x%08lX\n", bcsr[2]); - } - - total_size = 0; - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS && total_size < pd_size; ++i) { - bsize = flash_get_size((vu_long *)(CONFIG_SYS_FLASH_BASE + total_size), - &flash_info[i]); - - if (flash_info[i].flash_id == FLASH_UNKNOWN) { - printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", - i, bsize, bsize >> 20); - } - - total_size += bsize; - } - - if (total_size != pd_size) { - printf("## Detected flash size %lu conflicts with PD data %lu\n", - total_size, pd_size); - } - - /* Remap FLASH according to real size */ - memctl->memc_or0 = or_am | CONFIG_SYS_OR_TIMING_FLASH; - - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS && flash_info[i].size != 0; ++i) { -#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE - /* monitor protection ON by default */ - if (CONFIG_SYS_MONITOR_BASE >= flash_info[i].start[0]) - flash_protect (FLAG_PROTECT_SET, - CONFIG_SYS_MONITOR_BASE, - CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1, - &flash_info[i]); -#endif - -#ifdef CONFIG_ENV_IS_IN_FLASH - /* ENV protection ON by default */ - if (CONFIG_ENV_ADDR >= flash_info[i].start[0]) - flash_protect (FLAG_PROTECT_SET, - CONFIG_ENV_ADDR, - CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, - &flash_info[i]); -#endif - } - - return total_size; -} - -/*----------------------------------------------------------------------- - */ -void flash_print_info (flash_info_t * info) -{ - int i; - - 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_BM: - printf ("BRIGHT MICRO "); - break; - default: - printf ("Unknown Vendor "); - break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_AM040: - printf ("29F040 or 29LV040 (4 Mbit, uniform sectors)\n"); - break; - case FLASH_AM080: - printf ("29F080 or 29LV080 (8 Mbit, uniform sectors)\n"); - break; - 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_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_AM320B: - printf ("AM29LV320B (32 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM320T: - printf ("AM29LV320T (32 Mbit, top boot sector)\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) { - if ((i % 5) == 0) { - printf ("\n "); - } - - printf (" %08lX%s", - info->start[i], info->protect[i] ? " (RO)" : " "); - } - - printf ("\n"); -} - -/*----------------------------------------------------------------------- - * The following code can not run from flash! - */ -static ulong flash_get_size (vu_long * addr, flash_info_t * info) -{ - short i; - - /* Write auto select command: read Manufacturer ID */ - addr[0x0555] = 0xAAAAAAAA; - addr[0x02AA] = 0x55555555; - addr[0x0555] = 0x90909090; - - switch (addr[0]) { - case QUAD_ID(AMD_MANUFACT): - info->flash_id = FLASH_MAN_AMD; - break; - - case QUAD_ID(FUJ_MANUFACT): - info->flash_id = FLASH_MAN_FUJ; - break; - - default: - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - break; - } - - switch (addr[1]) { /* device ID */ - case QUAD_ID(AMD_ID_F040B): - case QUAD_ID(AMD_ID_LV040B): - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x00200000; - break; /* => 2 MB */ - - case QUAD_ID(AMD_ID_F080B): - info->flash_id += FLASH_AM080; - info->sector_count = 16; - info->size = 0x00400000; - break; /* => 4 MB */ -#if 0 - case AMD_ID_LV400T: - info->flash_id += FLASH_AM400T; - info->sector_count = 11; - info->size = 0x00100000; - break; /* => 1 MB */ - - case AMD_ID_LV400B: - info->flash_id += FLASH_AM400B; - info->sector_count = 11; - info->size = 0x00100000; - break; /* => 1 MB */ - - case AMD_ID_LV800T: - info->flash_id += FLASH_AM800T; - info->sector_count = 19; - info->size = 0x00200000; - break; /* => 2 MB */ - - case AMD_ID_LV800B: - info->flash_id += FLASH_AM800B; - info->sector_count = 19; - info->size = 0x00200000; - break; /* => 2 MB */ - - case AMD_ID_LV160T: - info->flash_id += FLASH_AM160T; - info->sector_count = 35; - info->size = 0x00400000; - break; /* => 4 MB */ - - case AMD_ID_LV160B: - info->flash_id += FLASH_AM160B; - info->sector_count = 35; - info->size = 0x00400000; - break; /* => 4 MB */ - - case AMD_ID_LV320T: - info->flash_id += FLASH_AM320T; - info->sector_count = 67; - info->size = 0x00800000; - break; /* => 8 MB */ - - case AMD_ID_LV320B: - info->flash_id += FLASH_AM320B; - info->sector_count = 67; - info->size = 0x00800000; - break; /* => 8 MB */ -#endif /* 0 */ - default: - info->flash_id = FLASH_UNKNOWN; - return (0); /* => no or unknown flash */ - } - -#if 0 - /* set up sector start address table */ - if (info->flash_id & FLASH_BTYPE) { - /* set sector offsets for bottom boot block type */ - info->start[0] = base + 0x00000000; - info->start[1] = base + 0x00008000; - info->start[2] = base + 0x0000C000; - info->start[3] = base + 0x00010000; - for (i = 4; i < info->sector_count; i++) { - info->start[i] = base + (i * 0x00020000) - 0x00060000; - } - } else { - /* set sector offsets for top boot block type */ - i = info->sector_count - 1; - info->start[i--] = base + info->size - 0x00008000; - info->start[i--] = base + info->size - 0x0000C000; - info->start[i--] = base + info->size - 0x00010000; - for (; i >= 0; i--) { - info->start[i] = base + i * 0x00020000; - } - } -#else - /* set sector offsets for uniform sector type */ - for (i = 0; i < info->sector_count; i++) - info->start[i] = (ulong)addr + (i * 0x00040000); -#endif - - /* 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 */ - addr = (volatile unsigned long *) (info->start[i]); - info->protect[i] = addr[2] & 1; - } - - if (info->flash_id != FLASH_UNKNOWN) { - addr = (volatile unsigned long *) info->start[0]; - *addr = 0xF0F0F0F0; /* reset bank */ - } - - return (info->size); -} - -/*----------------------------------------------------------------------- - */ -int flash_erase (flash_info_t * info, int s_first, int s_last) -{ - vu_long *addr = (vu_long *) (info->start[0]); - 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 ERR_INVAL; - } - - if ((info->flash_id == FLASH_UNKNOWN) || - (info->flash_id > FLASH_AMD_COMP)) { - printf ("Can't erase unknown flash type - aborted\n"); - return ERR_UNKNOWN_FLASH_TYPE; - } - - 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 (); - - addr[0x0555] = 0xAAAAAAAA; - addr[0x02AA] = 0x55555555; - addr[0x0555] = 0x80808080; - addr[0x0555] = 0xAAAAAAAA; - addr[0x02AA] = 0x55555555; - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect <= s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - addr = (vu_long *) (info->start[sect]); - addr[0] = 0x30303030; - 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 = (vu_long *) (info->start[l_sect]); - while ((addr[0] & 0xFFFFFFFF) != 0xFFFFFFFF) - { - if ((now = get_timer (start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - return ERR_TIMOUT; - } - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - putc ('.'); - last = now; - } - } - - DONE: - /* reset to read mode */ - addr = (volatile unsigned long *) info->start[0]; - addr[0] = 0xF0F0F0F0; /* 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) -{ - vu_long *addr = (vu_long *) (info->start[0]); - ulong start; - int flag; - - /* Check if Flash is (sufficiently) erased */ - if ((*((vu_long *) dest) & data) != data) { - return ERR_NOT_ERASED; - } - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts (); - - addr[0x0555] = 0xAAAAAAAA; - addr[0x02AA] = 0x55555555; - addr[0x0555] = 0xA0A0A0A0; - - *((vu_long *) dest) = data; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts (); - - /* data polling for D7 */ - start = get_timer (0); - while ((*((vu_long *) dest) & 0x80808080) != (data & 0x80808080)) - { - if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) { - return ERR_TIMOUT; - } - } - return (0); -} |
