diff options
Diffstat (limited to 'board/bmw')
| -rw-r--r-- | board/bmw/flash.c | 1182 | ||||
| -rw-r--r-- | board/bmw/ns16550.c | 62 | ||||
| -rw-r--r-- | board/bmw/ns16550.h | 85 |
3 files changed, 676 insertions, 653 deletions
diff --git a/board/bmw/flash.c b/board/bmw/flash.c index e04af97..7fba174 100644 --- a/board/bmw/flash.c +++ b/board/bmw/flash.c @@ -29,7 +29,7 @@ #define ROM_CS0_START 0xFF800000 #define ROM_CS1_START 0xFF000000 -flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ #if defined(CFG_ENV_IS_IN_FLASH) # ifndef CFG_ENV_ADDR @@ -46,9 +46,10 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ /*----------------------------------------------------------------------- * Functions */ -static int write_word (flash_info_t *info, ulong dest, ulong data); +static int write_word (flash_info_t * info, ulong dest, ulong data); + #if 0 -static void flash_get_offsets (ulong base, flash_info_t *info); +static void flash_get_offsets (ulong base, flash_info_t * info); #endif /* 0 */ /*flash command address offsets*/ @@ -69,289 +70,305 @@ static void flash_get_offsets (ulong base, flash_info_t *info); */ #if 0 -static int byte_parity_odd(unsigned char x) __attribute__ ((const)); +static int byte_parity_odd (unsigned char x) __attribute__ ((const)); #endif /* 0 */ -static unsigned long flash_id(unsigned char mfct, unsigned char chip) __attribute__ ((const)); +static unsigned long flash_id (unsigned char mfct, unsigned char chip) + __attribute__ ((const)); -typedef struct -{ - FLASH_WORD_SIZE extval; - unsigned short intval; +typedef struct { + FLASH_WORD_SIZE extval; + unsigned short intval; } map_entry; #if 0 -static int -byte_parity_odd(unsigned char x) +static int byte_parity_odd (unsigned char x) { - x ^= x >> 4; - x ^= x >> 2; - x ^= x >> 1; - return (x & 0x1) != 0; + x ^= x >> 4; + x ^= x >> 2; + x ^= x >> 1; + return (x & 0x1) != 0; } #endif /* 0 */ -static unsigned long -flash_id(unsigned char mfct, unsigned char chip) +static unsigned long flash_id (unsigned char mfct, unsigned char chip) { - static const map_entry mfct_map[] = - { - {(FLASH_WORD_SIZE) AMD_MANUFACT, (unsigned short) ((unsigned long) FLASH_MAN_AMD >> 16)}, - {(FLASH_WORD_SIZE) FUJ_MANUFACT, (unsigned short) ((unsigned long) FLASH_MAN_FUJ >> 16)}, - {(FLASH_WORD_SIZE) STM_MANUFACT, (unsigned short) ((unsigned long) FLASH_MAN_STM >> 16)}, - {(FLASH_WORD_SIZE) MT_MANUFACT, (unsigned short) ((unsigned long) FLASH_MAN_MT >> 16)}, - {(FLASH_WORD_SIZE) INTEL_MANUFACT,(unsigned short) ((unsigned long) FLASH_MAN_INTEL >> 16)}, - {(FLASH_WORD_SIZE) INTEL_ALT_MANU,(unsigned short) ((unsigned long) FLASH_MAN_INTEL >> 16)} - }; - - static const map_entry chip_map[] = - { - {AMD_ID_F040B, FLASH_AM040}, - {(FLASH_WORD_SIZE) STM_ID_x800AB, FLASH_STM800AB} - }; - - const map_entry *p; - unsigned long result = FLASH_UNKNOWN; - - /* find chip id */ - for(p = &chip_map[0]; p < &chip_map[sizeof chip_map / sizeof chip_map[0]]; p++) - if(p->extval == chip) - { - result = FLASH_VENDMASK | p->intval; - break; - } - - /* find vendor id */ - for(p = &mfct_map[0]; p < &mfct_map[sizeof mfct_map / sizeof mfct_map[0]]; p++) - if(p->extval == mfct) - { - result &= ~FLASH_VENDMASK; - result |= (unsigned long) p->intval << 16; - break; - } - - return result; + static const map_entry mfct_map[] = { + {(FLASH_WORD_SIZE) AMD_MANUFACT, + (unsigned short) ((unsigned long) FLASH_MAN_AMD >> 16)}, + {(FLASH_WORD_SIZE) FUJ_MANUFACT, + (unsigned short) ((unsigned long) FLASH_MAN_FUJ >> 16)}, + {(FLASH_WORD_SIZE) STM_MANUFACT, + (unsigned short) ((unsigned long) FLASH_MAN_STM >> 16)}, + {(FLASH_WORD_SIZE) MT_MANUFACT, + (unsigned short) ((unsigned long) FLASH_MAN_MT >> 16)}, + {(FLASH_WORD_SIZE) INTEL_MANUFACT, + (unsigned short) ((unsigned long) FLASH_MAN_INTEL >> 16)}, + {(FLASH_WORD_SIZE) INTEL_ALT_MANU, + (unsigned short) ((unsigned long) FLASH_MAN_INTEL >> 16)} + }; + + static const map_entry chip_map[] = { + {AMD_ID_F040B, FLASH_AM040}, + {(FLASH_WORD_SIZE) STM_ID_x800AB, FLASH_STM800AB} + }; + + const map_entry *p; + unsigned long result = FLASH_UNKNOWN; + + /* find chip id */ + for (p = &chip_map[0]; + p < &chip_map[sizeof chip_map / sizeof chip_map[0]]; p++) + if (p->extval == chip) { + result = FLASH_VENDMASK | p->intval; + break; + } + + /* find vendor id */ + for (p = &mfct_map[0]; + p < &mfct_map[sizeof mfct_map / sizeof mfct_map[0]]; p++) + if (p->extval == mfct) { + result &= ~FLASH_VENDMASK; + result |= (unsigned long) p->intval << 16; + break; + } + + return result; } -unsigned long -flash_init(void) +unsigned long flash_init (void) { - unsigned long i; - unsigned char j; - static const ulong flash_banks[] = CFG_FLASH_BANKS; - - /* Init: no FLASHes known */ - for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) - { - flash_info_t * const pflinfo = &flash_info[i]; - pflinfo->flash_id = FLASH_UNKNOWN; - pflinfo->size = 0; - pflinfo->sector_count = 0; - } - - for(i = 0; i < sizeof flash_banks / sizeof flash_banks[0]; i++) - { - flash_info_t * const pflinfo = &flash_info[i]; - const unsigned long base_address = flash_banks[i]; - volatile FLASH_WORD_SIZE * const flash = (FLASH_WORD_SIZE *) base_address; + unsigned long i; + unsigned char j; + static const ulong flash_banks[] = CFG_FLASH_BANKS; + + /* Init: no FLASHes known */ + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { + flash_info_t *const pflinfo = &flash_info[i]; + + pflinfo->flash_id = FLASH_UNKNOWN; + pflinfo->size = 0; + pflinfo->sector_count = 0; + } + + for (i = 0; i < sizeof flash_banks / sizeof flash_banks[0]; i++) { + flash_info_t *const pflinfo = &flash_info[i]; + const unsigned long base_address = flash_banks[i]; + volatile FLASH_WORD_SIZE *const flash = + (FLASH_WORD_SIZE *) base_address; #if 0 - volatile FLASH_WORD_SIZE * addr2; + volatile FLASH_WORD_SIZE *addr2; #endif #if 0 - /* write autoselect sequence */ - flash[0x5555] = 0xaa; - flash[0x2aaa] = 0x55; - flash[0x5555] = 0x90; + /* write autoselect sequence */ + flash[0x5555] = 0xaa; + flash[0x2aaa] = 0x55; + flash[0x5555] = 0x90; #else - flash[0xAAA << (3 * i)] = 0xaa; - flash[0x555 << (3 * i)] = 0x55; - flash[0xAAA << (3 * i)] = 0x90; + flash[0xAAA << (3 * i)] = 0xaa; + flash[0x555 << (3 * i)] = 0x55; + flash[0xAAA << (3 * i)] = 0x90; #endif - __asm__ __volatile__("sync"); + __asm__ __volatile__ ("sync"); #if 0 - pflinfo->flash_id = flash_id(flash[0x0], flash[0x1]); + pflinfo->flash_id = flash_id (flash[0x0], flash[0x1]); #else - pflinfo->flash_id = flash_id(flash[0x0], flash[0x2 + 14 * i]); + pflinfo->flash_id = + flash_id (flash[0x0], flash[0x2 + 14 * i]); #endif - switch(pflinfo->flash_id & FLASH_TYPEMASK) - { - case FLASH_AM040: - pflinfo->size = 0x00080000; - pflinfo->sector_count = 8; - for(j = 0; j < 8; j++) - { - pflinfo->start[j] = base_address + 0x00010000 * j; - pflinfo->protect[j] = flash[(j << 16) | 0x2]; - } - break; - case FLASH_STM800AB: - pflinfo->size = 0x00100000; - pflinfo->sector_count = 19; - pflinfo->start[0] = base_address; - pflinfo->start[1] = base_address + 0x4000; - pflinfo->start[2] = base_address + 0x6000; - pflinfo->start[3] = base_address + 0x8000; - for(j = 1; j < 16; j++) - { - pflinfo->start[j+3] = base_address + 0x00010000 * j; - } + switch (pflinfo->flash_id & FLASH_TYPEMASK) { + case FLASH_AM040: + pflinfo->size = 0x00080000; + pflinfo->sector_count = 8; + for (j = 0; j < 8; j++) { + pflinfo->start[j] = + base_address + 0x00010000 * j; + pflinfo->protect[j] = flash[(j << 16) | 0x2]; + } + break; + case FLASH_STM800AB: + pflinfo->size = 0x00100000; + pflinfo->sector_count = 19; + pflinfo->start[0] = base_address; + pflinfo->start[1] = base_address + 0x4000; + pflinfo->start[2] = base_address + 0x6000; + pflinfo->start[3] = base_address + 0x8000; + for (j = 1; j < 16; j++) { + pflinfo->start[j + 3] = + base_address + 0x00010000 * j; + } #if 0 - /* check for protected sectors */ - for (j = 0; j < pflinfo->sector_count; j++) { - /* read sector protection at sector address, (A7 .. A0) = 0x02 */ - /* D0 = 1 if protected */ - addr2 = (volatile FLASH_WORD_SIZE *)(pflinfo->start[j]); - if (pflinfo->flash_id & FLASH_MAN_SST) - pflinfo->protect[j] = 0; - else - pflinfo->protect[j] = addr2[2] & 1; - } + /* check for protected sectors */ + for (j = 0; j < pflinfo->sector_count; j++) { + /* read sector protection at sector address, (A7 .. A0) = 0x02 */ + /* D0 = 1 if protected */ + addr2 = (volatile FLASH_WORD_SIZE + *) (pflinfo->start[j]); + if (pflinfo->flash_id & FLASH_MAN_SST) + pflinfo->protect[j] = 0; + else + pflinfo->protect[j] = addr2[2] & 1; + } #endif - break; - } - /* Protect monitor and environment sectors - */ + break; + } + /* Protect monitor and environment sectors + */ #if CFG_MONITOR_BASE >= CFG_FLASH_BASE - flash_protect(FLAG_PROTECT_SET, - CFG_MONITOR_BASE, - CFG_MONITOR_BASE + monitor_flash_len - 1, - &flash_info[0]); + flash_protect (FLAG_PROTECT_SET, + CFG_MONITOR_BASE, + CFG_MONITOR_BASE + monitor_flash_len - 1, + &flash_info[0]); #endif #if (CFG_ENV_IS_IN_FLASH == 1) && defined(CFG_ENV_ADDR) - flash_protect(FLAG_PROTECT_SET, - CFG_ENV_ADDR, - CFG_ENV_ADDR + CFG_ENV_SIZE - 1, - &flash_info[0]); + flash_protect (FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SIZE - 1, + &flash_info[0]); #endif - /* reset device to read mode */ - flash[0x0000] = 0xf0; - __asm__ __volatile__("sync"); - } + /* reset device to read mode */ + flash[0x0000] = 0xf0; + __asm__ __volatile__ ("sync"); + } - return flash_info[0].size + flash_info[1].size; + return flash_info[0].size + flash_info[1].size; } #if 0 -static void -flash_get_offsets (ulong base, flash_info_t *info) +static void flash_get_offsets (ulong base, flash_info_t * info) { - int i; - - /* set up sector start address table */ - if (info->flash_id & FLASH_MAN_SST) - { - for (i = 0; i < info->sector_count; i++) - info->start[i] = base + (i * 0x00010000); - } - 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; + int i; + + /* set up sector start address table */ + if (info->flash_id & FLASH_MAN_SST) { + for (i = 0; i < info->sector_count; i++) + info->start[i] = base + (i * 0x00010000); + } 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; + } } - } } #endif /* 0 */ /*----------------------------------------------------------------------- */ -void -flash_print_info(flash_info_t *info) +void flash_print_info (flash_info_t * info) { - static const char unk[] = "Unknown"; - const char *mfct = unk, *type = unk; - unsigned int i; - - if(info->flash_id != FLASH_UNKNOWN) - { - switch(info->flash_id & FLASH_VENDMASK) - { - case FLASH_MAN_AMD: mfct = "AMD"; break; - case FLASH_MAN_FUJ: mfct = "FUJITSU"; break; - case FLASH_MAN_STM: mfct = "STM"; break; - case FLASH_MAN_SST: mfct = "SST"; break; - case FLASH_MAN_BM: mfct = "Bright Microelectonics"; break; - case FLASH_MAN_INTEL: mfct = "Intel"; break; - } - - switch(info->flash_id & FLASH_TYPEMASK) - { - case FLASH_AM040: type = "AM29F040B (512K * 8, uniform sector size)"; break; - case FLASH_AM400B: type = "AM29LV400B (4 Mbit, bottom boot sect)"; break; - case FLASH_AM400T: type = "AM29LV400T (4 Mbit, top boot sector)"; break; - case FLASH_AM800B: type = "AM29LV800B (8 Mbit, bottom boot sect)"; break; - case FLASH_AM800T: type = "AM29LV800T (8 Mbit, top boot sector)"; break; - case FLASH_AM160T: type = "AM29LV160T (16 Mbit, top boot sector)"; break; - case FLASH_AM320B: type = "AM29LV320B (32 Mbit, bottom boot sect)"; break; - case FLASH_AM320T: type = "AM29LV320T (32 Mbit, top boot sector)"; break; - case FLASH_STM800AB: type = "M29W800AB (8 Mbit, bottom boot sect)"; break; - case FLASH_SST800A: type = "SST39LF/VF800 (8 Mbit, uniform sector size)"; break; - case FLASH_SST160A: type = "SST39LF/VF160 (16 Mbit, uniform sector size)"; break; - } - } - - printf( - "\n Brand: %s Type: %s\n" - " Size: %lu KB in %d Sectors\n", - mfct, - type, - info->size >> 10, - info->sector_count - ); - - printf (" Sector Start Addresses:"); - - for (i = 0; i < info->sector_count; i++) - { - unsigned long size; - unsigned int erased; - unsigned long * flash = (unsigned long *) info->start[i]; - - /* - * Check if whole sector is erased - */ - size = - (i != (info->sector_count - 1)) ? - (info->start[i + 1] - info->start[i]) >> 2 : - (info->start[0] + info->size - info->start[i]) >> 2; - - for( - flash = (unsigned long *) info->start[i], erased = 1; - (flash != (unsigned long *) info->start[i] + size) && erased; - flash++ - ) - erased = *flash == ~0x0UL; - - printf( - "%s %08lX %s %s", - (i % 5) ? "" : "\n ", - info->start[i], - erased ? "E" : " ", - info->protect[i] ? "RO" : " " - ); - } - - puts("\n"); - return; + static const char unk[] = "Unknown"; + const char *mfct = unk, *type = unk; + unsigned int i; + + if (info->flash_id != FLASH_UNKNOWN) { + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_AMD: + mfct = "AMD"; + break; + case FLASH_MAN_FUJ: + mfct = "FUJITSU"; + break; + case FLASH_MAN_STM: + mfct = "STM"; + break; + case FLASH_MAN_SST: + mfct = "SST"; + break; + case FLASH_MAN_BM: + mfct = "Bright Microelectonics"; + break; + case FLASH_MAN_INTEL: + mfct = "Intel"; + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_AM040: + type = "AM29F040B (512K * 8, uniform sector size)"; + break; + case FLASH_AM400B: + type = "AM29LV400B (4 Mbit, bottom boot sect)"; + break; + case FLASH_AM400T: + type = "AM29LV400T (4 Mbit, top boot sector)"; + break; + case FLASH_AM800B: + type = "AM29LV800B (8 Mbit, bottom boot sect)"; + break; + case FLASH_AM800T: + type = "AM29LV800T (8 Mbit, top boot sector)"; + break; + case FLASH_AM160T: + type = "AM29LV160T (16 Mbit, top boot sector)"; + break; + case FLASH_AM320B: + type = "AM29LV320B (32 Mbit, bottom boot sect)"; + break; + case FLASH_AM320T: + type = "AM29LV320T (32 Mbit, top boot sector)"; + break; + case FLASH_STM800AB: + type = "M29W800AB (8 Mbit, bottom boot sect)"; + break; + case FLASH_SST800A: + type = "SST39LF/VF800 (8 Mbit, uniform sector size)"; + break; + case FLASH_SST160A: + type = "SST39LF/VF160 (16 Mbit, uniform sector size)"; + break; + } + } + + printf ("\n Brand: %s Type: %s\n" + " Size: %lu KB in %d Sectors\n", + mfct, type, info->size >> 10, info->sector_count); + + printf (" Sector Start Addresses:"); + + for (i = 0; i < info->sector_count; i++) { + unsigned long size; + unsigned int erased; + unsigned long *flash = (unsigned long *) info->start[i]; + + /* + * Check if whole sector is erased + */ + size = (i != (info->sector_count - 1)) ? + (info->start[i + 1] - info->start[i]) >> 2 : + (info->start[0] + info->size - info->start[i]) >> 2; + + for (flash = (unsigned long *) info->start[i], erased = 1; + (flash != (unsigned long *) info->start[i] + size) + && erased; flash++) + erased = *flash == ~0x0UL; + + printf ("%s %08lX %s %s", + (i % 5) ? "" : "\n ", + info->start[i], + erased ? "E" : " ", info->protect[i] ? "RO" : " "); + } + + puts ("\n"); + return; } #if 0 @@ -359,268 +376,275 @@ flash_print_info(flash_info_t *info) /* * The following code cannot be run from FLASH! */ -ulong -flash_get_size (vu_long *addr, flash_info_t *info) +ulong flash_get_size (vu_long * addr, flash_info_t * info) { - short i; - FLASH_WORD_SIZE value; - ulong base = (ulong)addr; - volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr; - - printf("flash_get_size: \n"); - /* Write auto select command: read Manufacturer ID */ - eieio(); - addr2[ADDR0] = (FLASH_WORD_SIZE)0xAA; - addr2[ADDR1] = (FLASH_WORD_SIZE)0x55; - addr2[ADDR0] = (FLASH_WORD_SIZE)0x90; - value = addr2[0]; - - switch (value) { - case (FLASH_WORD_SIZE)AMD_MANUFACT: - info->flash_id = FLASH_MAN_AMD; - break; - case (FLASH_WORD_SIZE)FUJ_MANUFACT: - info->flash_id = FLASH_MAN_FUJ; - break; - case (FLASH_WORD_SIZE)SST_MANUFACT: - info->flash_id = FLASH_MAN_SST; - break; - default: - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - return (0); /* no or unknown flash */ - } - printf("recognised manufacturer"); - - value = addr2[ADDR3]; /* device ID */ + short i; + FLASH_WORD_SIZE value; + ulong base = (ulong) addr; + volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *) addr; + + printf ("flash_get_size: \n"); + /* Write auto select command: read Manufacturer ID */ + eieio (); + addr2[ADDR0] = (FLASH_WORD_SIZE) 0xAA; + addr2[ADDR1] = (FLASH_WORD_SIZE) 0x55; + addr2[ADDR0] = (FLASH_WORD_SIZE) 0x90; + value = addr2[0]; + + switch (value) { + case (FLASH_WORD_SIZE) AMD_MANUFACT: + info->flash_id = FLASH_MAN_AMD; + break; + case (FLASH_WORD_SIZE) FUJ_MANUFACT: + info->flash_id = FLASH_MAN_FUJ; + break; + case (FLASH_WORD_SIZE) SST_MANUFACT: + info->flash_id = FLASH_MAN_SST; + break; + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + return (0); /* no or unknown flash */ + } + printf ("recognised manufacturer"); + + value = addr2[ADDR3]; /* device ID */ debug ("\ndev_code=%x\n", value); - switch (value) { - case (FLASH_WORD_SIZE)AMD_ID_LV400T: - info->flash_id += FLASH_AM400T; - info->sector_count = 11; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - case (FLASH_WORD_SIZE)AMD_ID_LV400B: - info->flash_id += FLASH_AM400B; - info->sector_count = 11; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - case (FLASH_WORD_SIZE)AMD_ID_LV800T: - info->flash_id += FLASH_AM800T; - info->sector_count = 19; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (FLASH_WORD_SIZE)AMD_ID_LV800B: - info->flash_id += FLASH_AM800B; - info->sector_count = 19; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (FLASH_WORD_SIZE)AMD_ID_LV160T: - info->flash_id += FLASH_AM160T; - info->sector_count = 35; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (FLASH_WORD_SIZE)AMD_ID_LV160B: - info->flash_id += FLASH_AM160B; - info->sector_count = 35; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (FLASH_WORD_SIZE)SST_ID_xF800A: - info->flash_id += FLASH_SST800A; - info->sector_count = 16; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (FLASH_WORD_SIZE)SST_ID_xF160A: - info->flash_id += FLASH_SST160A; - info->sector_count = 32; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (FLASH_WORD_SIZE)AMD_ID_F040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - default: - info->flash_id = FLASH_UNKNOWN; - return (0); /* => no or unknown flash */ - - } - - printf("flash id %lx; sector count %x, size %lx\n", info->flash_id,info->sector_count,info->size); - /* set up sector start address table */ - if (info->flash_id & FLASH_MAN_SST) - { - for (i = 0; i < info->sector_count; i++) - info->start[i] = base + (i * 0x00010000); - } - 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; + switch (value) { + case (FLASH_WORD_SIZE) AMD_ID_LV400T: + info->flash_id += FLASH_AM400T; + info->sector_count = 11; + info->size = 0x00080000; + break; /* => 0.5 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV400B: + info->flash_id += FLASH_AM400B; + info->sector_count = 11; + info->size = 0x00080000; + break; /* => 0.5 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV800T: + info->flash_id += FLASH_AM800T; + info->sector_count = 19; + info->size = 0x00100000; + break; /* => 1 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV800B: + info->flash_id += FLASH_AM800B; + info->sector_count = 19; + info->size = 0x00100000; + break; /* => 1 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV160T: + info->flash_id += FLASH_AM160T; + info->sector_count = 35; + info->size = 0x00200000; + break; /* => 2 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV160B: + info->flash_id += FLASH_AM160B; + info->sector_count = 35; + info->size = 0x00200000; + break; /* => 2 MB */ + + case (FLASH_WORD_SIZE) SST_ID_xF800A: + info->flash_id += FLASH_SST800A; + info->sector_count = 16; + info->size = 0x00100000; + break; /* => 1 MB */ + + case (FLASH_WORD_SIZE) SST_ID_xF160A: + info->flash_id += FLASH_SST160A; + info->sector_count = 32; + info->size = 0x00200000; + break; /* => 2 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_F040B: + info->flash_id += FLASH_AM040; + info->sector_count = 8; + info->size = 0x00080000; + break; /* => 0.5 MB */ + + default: + info->flash_id = FLASH_UNKNOWN; + return (0); /* => no or unknown flash */ + } - } 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; + + printf ("flash id %lx; sector count %x, size %lx\n", info->flash_id, + info->sector_count, info->size); + /* set up sector start address table */ + if (info->flash_id & FLASH_MAN_SST) { + for (i = 0; i < info->sector_count; i++) + info->start[i] = base + (i * 0x00010000); + } 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 FLASH_WORD_SIZE *)(info->start[i]); + /* 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 FLASH_WORD_SIZE *) (info->start[i]); if (info->flash_id & FLASH_MAN_SST) - info->protect[i] = 0; + info->protect[i] = 0; else - info->protect[i] = addr2[2] & 1; - } - - /* - * Prevent writes to uninitialized FLASH. - */ - if (info->flash_id != FLASH_UNKNOWN) { - addr2 = (FLASH_WORD_SIZE *)info->start[0]; - *addr2 = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */ - } - - return (info->size); + info->protect[i] = addr2[2] & 1; + } + + /* + * Prevent writes to uninitialized FLASH. + */ + if (info->flash_id != FLASH_UNKNOWN) { + addr2 = (FLASH_WORD_SIZE *) info->start[0]; + *addr2 = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ + } + + return (info->size); } #endif -int -flash_erase(flash_info_t *info, int s_first, int s_last) +int flash_erase (flash_info_t * info, int s_first, int s_last) { - volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]); - int flag, prot, sect, l_sect; - ulong start, now, last; - unsigned char sh8b; - - if ((s_first < 0) || (s_first > s_last)) { - if (info->flash_id == FLASH_UNKNOWN) { - printf ("- missing\n"); - } else { - printf ("- no sectors to erase\n"); + volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *) (info->start[0]); + int flag, prot, sect, l_sect; + ulong start, now, last; + unsigned char sh8b; + + 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; } - return 1; - } - - if ((info->flash_id == FLASH_UNKNOWN) || - (info->flash_id > (FLASH_MAN_STM | FLASH_AMD_COMP))) { - 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 ((info->flash_id == FLASH_UNKNOWN) || + (info->flash_id > (FLASH_MAN_STM | FLASH_AMD_COMP))) { + 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; - - /* Check the ROM CS */ - if ((info->start[0] >= ROM_CS1_START) && (info->start[0] < ROM_CS0_START)) - sh8b = 3; - else - sh8b = 0; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00AA00AA; - addr[ADDR1 << sh8b] = (FLASH_WORD_SIZE)0x00550055; - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00800080; - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00AA00AA; - addr[ADDR1 << sh8b] = (FLASH_WORD_SIZE)0x00550055; - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect<=s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - addr = (FLASH_WORD_SIZE *)(info->start[0] + ( - (info->start[sect] - info->start[0]) << sh8b)); - if (info->flash_id & FLASH_MAN_SST) - { - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00AA00AA; - addr[ADDR1 << sh8b] = (FLASH_WORD_SIZE)0x00550055; - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00800080; - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00AA00AA; - addr[ADDR1 << sh8b] = (FLASH_WORD_SIZE)0x00550055; - addr[0] = (FLASH_WORD_SIZE)0x00500050; /* block erase */ - udelay(30000); /* wait 30 ms */ - } - else - addr[0] = (FLASH_WORD_SIZE)0x00300030; /* sector erase */ - l_sect = sect; + + if (prot) { + printf ("- Warning: %d protected sectors will not be erased!\n", prot); + } else { + printf ("\n"); } - } - - /* 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 = (FLASH_WORD_SIZE *)(info->start[0] + ( - (info->start[l_sect] - info->start[0]) << sh8b)); - while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) { - if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - return 1; + + l_sect = -1; + + /* Check the ROM CS */ + if ((info->start[0] >= ROM_CS1_START) + && (info->start[0] < ROM_CS0_START)) + sh8b = 3; + else + sh8b = 0; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE) 0x00AA00AA; + addr[ADDR1 << sh8b] = (FLASH_WORD_SIZE) 0x00550055; + addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE) 0x00800080; + addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE) 0x00AA00AA; + addr[ADDR1 << sh8b] = (FLASH_WORD_SIZE) 0x00550055; + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect <= s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + addr = (FLASH_WORD_SIZE *) (info->start[0] + ((info-> + start + [sect] + - + info-> + start + [0]) << + sh8b)); + if (info->flash_id & FLASH_MAN_SST) { + addr[ADDR0 << sh8b] = + (FLASH_WORD_SIZE) 0x00AA00AA; + addr[ADDR1 << sh8b] = + (FLASH_WORD_SIZE) 0x00550055; + addr[ADDR0 << sh8b] = + (FLASH_WORD_SIZE) 0x00800080; + addr[ADDR0 << sh8b] = + (FLASH_WORD_SIZE) 0x00AA00AA; + addr[ADDR1 << sh8b] = + (FLASH_WORD_SIZE) 0x00550055; + addr[0] = (FLASH_WORD_SIZE) 0x00500050; /* block erase */ + udelay (30000); /* wait 30 ms */ + } else + addr[0] = (FLASH_WORD_SIZE) 0x00300030; /* sector erase */ + l_sect = sect; + } } - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - serial_putc ('.'); - last = now; + + /* 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 = (FLASH_WORD_SIZE *) (info->start[0] + ((info->start[l_sect] - + info-> + start[0]) << sh8b)); + while ((addr[0] & (FLASH_WORD_SIZE) 0x00800080) != + (FLASH_WORD_SIZE) 0x00800080) { + if ((now = get_timer (start)) > CFG_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + return 1; + } + /* show that we're waiting */ + if ((now - last) > 1000) { /* every second */ + serial_putc ('.'); + last = now; + } } - } -DONE: - /* reset to read mode */ - addr = (FLASH_WORD_SIZE *)info->start[0]; - addr[0] = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */ + DONE: + /* reset to read mode */ + addr = (FLASH_WORD_SIZE *) info->start[0]; + addr[0] = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ - printf (" done\n"); - return 0; + printf (" done\n"); + return 0; } /*----------------------------------------------------------------------- @@ -630,68 +654,68 @@ DONE: * 2 - Flash not erased */ -int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +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); + 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; } - for (; i<4 && cnt>0; ++i) { - data = (data << 8) | *src++; - --cnt; - ++cp; - } - for (; cnt==0 && i<4; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); + + /* + * 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 ((rc = write_word(info, wp, data)) != 0) { - return (rc); + if (cnt == 0) { + return (0); } - wp += 4; - } - /* - * handle word aligned part - */ - while (cnt >= 4) { + /* + * handle unaligned tail bytes + */ data = 0; - for (i=0; i<4; ++i) { - data = (data << 8) | *src++; + for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; } - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); + for (; i < 4; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); } - 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)); + return (write_word (info, wp, data)); } /*----------------------------------------------------------------------- @@ -700,55 +724,55 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) * 1 - write timeout * 2 - Flash not erased */ -static int write_word (flash_info_t *info, ulong dest, ulong data) +static int write_word (flash_info_t * info, ulong dest, ulong data) { - volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)info->start[0]; + volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *) info->start[0]; volatile FLASH_WORD_SIZE *dest2; - volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *)&data; - ulong start; - int flag; + volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *) & data; + ulong start; + int flag; int i; - unsigned char sh8b; - - /* Check the ROM CS */ - if ((info->start[0] >= ROM_CS1_START) && (info->start[0] < ROM_CS0_START)) - sh8b = 3; - else - sh8b = 0; - - dest2 = (FLASH_WORD_SIZE *)(((dest - info->start[0]) << sh8b) + - info->start[0]); - - /* Check if Flash is (sufficiently) erased */ - if ((*dest2 & (FLASH_WORD_SIZE)data) != (FLASH_WORD_SIZE)data) { - return (2); - } - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - for (i=0; i<4/sizeof(FLASH_WORD_SIZE); i++) - { - addr2[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00AA00AA; - addr2[ADDR1 << sh8b] = (FLASH_WORD_SIZE)0x00550055; - addr2[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00A000A0; - - dest2[i << sh8b] = data2[i]; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* data polling for D7 */ - start = get_timer (0); - while ((dest2[i << sh8b] & (FLASH_WORD_SIZE)0x00800080) != - (data2[i] & (FLASH_WORD_SIZE)0x00800080)) { - if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { - return (1); - } - } - } - - return (0); + unsigned char sh8b; + + /* Check the ROM CS */ + if ((info->start[0] >= ROM_CS1_START) + && (info->start[0] < ROM_CS0_START)) + sh8b = 3; + else + sh8b = 0; + + dest2 = (FLASH_WORD_SIZE *) (((dest - info->start[0]) << sh8b) + + info->start[0]); + + /* Check if Flash is (sufficiently) erased */ + if ((*dest2 & (FLASH_WORD_SIZE) data) != (FLASH_WORD_SIZE) data) { + return (2); + } + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + for (i = 0; i < 4 / sizeof (FLASH_WORD_SIZE); i++) { + addr2[ADDR0 << sh8b] = (FLASH_WORD_SIZE) 0x00AA00AA; + addr2[ADDR1 << sh8b] = (FLASH_WORD_SIZE) 0x00550055; + addr2[ADDR0 << sh8b] = (FLASH_WORD_SIZE) 0x00A000A0; + + dest2[i << sh8b] = data2[i]; + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts (); + + /* data polling for D7 */ + start = get_timer (0); + while ((dest2[i << sh8b] & (FLASH_WORD_SIZE) 0x00800080) != + (data2[i] & (FLASH_WORD_SIZE) 0x00800080)) { + if (get_timer (start) > CFG_FLASH_WRITE_TOUT) { + return (1); + } + } + } + + return (0); } /*----------------------------------------------------------------------- diff --git a/board/bmw/ns16550.c b/board/bmw/ns16550.c index b1c28eb..7064567 100644 --- a/board/bmw/ns16550.c +++ b/board/bmw/ns16550.c @@ -9,49 +9,49 @@ typedef struct NS16550 *NS16550_t; -const NS16550_t COM_PORTS[] = { (NS16550_t) ((CFG_EUMB_ADDR) + 0x4500), (NS16550_t) ((CFG_EUMB_ADDR) + 0x4600)}; +const NS16550_t COM_PORTS[] = + { (NS16550_t) ((CFG_EUMB_ADDR) + 0x4500), +(NS16550_t) ((CFG_EUMB_ADDR) + 0x4600) }; -volatile struct NS16550 * -NS16550_init(int chan, int baud_divisor) +volatile struct NS16550 *NS16550_init (int chan, int baud_divisor) { - volatile struct NS16550 *com_port; - com_port = (struct NS16550 *) COM_PORTS[chan]; - com_port->ier = 0x00; - com_port->lcr = LCR_BKSE; /* Access baud rate */ - com_port->dll = baud_divisor & 0xff; /* 9600 baud */ - com_port->dlm = (baud_divisor >> 8) & 0xff; - com_port->lcr = LCR_8N1; /* 8 data, 1 stop, no parity */ - com_port->mcr = MCR_RTS; /* RTS/DTR */ - com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; /* Clear & enable FIFOs */ -return (com_port); + volatile struct NS16550 *com_port; + + com_port = (struct NS16550 *) COM_PORTS[chan]; + com_port->ier = 0x00; + com_port->lcr = LCR_BKSE; /* Access baud rate */ + com_port->dll = baud_divisor & 0xff; /* 9600 baud */ + com_port->dlm = (baud_divisor >> 8) & 0xff; + com_port->lcr = LCR_8N1; /* 8 data, 1 stop, no parity */ + com_port->mcr = MCR_RTS; /* RTS/DTR */ + com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; /* Clear & enable FIFOs */ + return (com_port); } -void -NS16550_reinit(volatile struct NS16550 *com_port, int baud_divisor) +void NS16550_reinit (volatile struct NS16550 *com_port, int baud_divisor) { - com_port->ier = 0x00; - com_port->lcr = LCR_BKSE; /* Access baud rate */ - com_port->dll = baud_divisor & 0xff; /* 9600 baud */ - com_port->dlm = (baud_divisor >> 8) & 0xff; - com_port->lcr = LCR_8N1; /* 8 data, 1 stop, no parity */ - com_port->mcr = MCR_RTS; /* RTS/DTR */ - com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; /* Clear & enable FIFOs */ + com_port->ier = 0x00; + com_port->lcr = LCR_BKSE; /* Access baud rate */ + com_port->dll = baud_divisor & 0xff; /* 9600 baud */ + com_port->dlm = (baud_divisor >> 8) & 0xff; + com_port->lcr = LCR_8N1; /* 8 data, 1 stop, no parity */ + com_port->mcr = MCR_RTS; /* RTS/DTR */ + com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; /* Clear & enable FIFOs */ } -void NS16550_putc(volatile struct NS16550 *com_port, unsigned char c) +void NS16550_putc (volatile struct NS16550 *com_port, unsigned char c) { - while ((com_port->lsr & LSR_THRE) == 0) ; - com_port->thr = c; + while ((com_port->lsr & LSR_THRE) == 0); + com_port->thr = c; } -unsigned char -NS16550_getc(volatile struct NS16550 *com_port) +unsigned char NS16550_getc (volatile struct NS16550 *com_port) { - while ((com_port->lsr & LSR_DR) == 0) ; - return (com_port->rbr); + while ((com_port->lsr & LSR_DR) == 0); + return (com_port->rbr); } -int NS16550_tstc(volatile struct NS16550 *com_port) +int NS16550_tstc (volatile struct NS16550 *com_port) { - return ((com_port->lsr & LSR_DR) != 0); + return ((com_port->lsr & LSR_DR) != 0); } diff --git a/board/bmw/ns16550.h b/board/bmw/ns16550.h index 0b7b389..104f45b 100644 --- a/board/bmw/ns16550.h +++ b/board/bmw/ns16550.h @@ -12,20 +12,19 @@ */ -struct NS16550 - { - unsigned char rbrthrdlb; /* 0 */ - unsigned char ierdmb; /* 1 */ - unsigned char iirfcrafr; /* 2 */ - unsigned char lcr; /* 3 */ - unsigned char mcr; /* 4 */ - unsigned char lsr; /* 5 */ - unsigned char msr; /* 6 */ - unsigned char scr; /* 7 */ - unsigned char reserved[2]; /* 8 & 9 */ - unsigned char dsr; /* 10 */ - unsigned char dcr; /* 11 */ - }; +struct NS16550 { + unsigned char rbrthrdlb; /* 0 */ + unsigned char ierdmb; /* 1 */ + unsigned char iirfcrafr; /* 2 */ + unsigned char lcr; /* 3 */ + unsigned char mcr; /* 4 */ + unsigned char lsr; /* 5 */ + unsigned char msr; /* 6 */ + unsigned char scr; /* 7 */ + unsigned char reserved[2]; /* 8 & 9 */ + unsigned char dsr; /* 10 */ + unsigned char dcr; /* 11 */ +}; #define rbr rbrthrdlb @@ -37,44 +36,44 @@ struct NS16550 #define fcr iirfcrafr #define afr iirfcrafr -#define FCR_FIFO_EN 0x01 /*fifo enable*/ -#define FCR_RXSR 0x02 /*reciever soft reset*/ -#define FCR_TXSR 0x04 /*transmitter soft reset*/ -#define FCR_DMS 0x08 /* DMA Mode Select */ +#define FCR_FIFO_EN 0x01 /*fifo enable */ +#define FCR_RXSR 0x02 /*reciever soft reset */ +#define FCR_TXSR 0x04 /*transmitter soft reset */ +#define FCR_DMS 0x08 /* DMA Mode Select */ -#define MCR_RTS 0x02 /* Readyu to Send */ +#define MCR_RTS 0x02 /* Readyu to Send */ #define MCR_LOOP 0x10 /* Local loopback mode enable */ /* #define MCR_DTR 0x01 noton 8245 duart */ /* #define MCR_DMA_EN 0x04 noton 8245 duart */ /* #define MCR_TX_DFR 0x08 noton 8245 duart */ -#define LCR_WLS_MSK 0x03 /* character length slect mask*/ -#define LCR_WLS_5 0x00 /* 5 bit character length */ -#define LCR_WLS_6 0x01 /* 6 bit character length */ -#define LCR_WLS_7 0x02 /* 7 bit character length */ -#define LCR_WLS_8 0x03 /* 8 bit character length */ -#define LCR_STB 0x04 /* Number of stop Bits, off = 1, on = 1.5 or 2) */ -#define LCR_PEN 0x08 /* Parity eneble*/ -#define LCR_EPS 0x10 /* Even Parity Select*/ -#define LCR_STKP 0x20 /* Stick Parity*/ -#define LCR_SBRK 0x40 /* Set Break*/ -#define LCR_BKSE 0x80 /* Bank select enable - aka DLAB on 8245 */ +#define LCR_WLS_MSK 0x03 /* character length slect mask */ +#define LCR_WLS_5 0x00 /* 5 bit character length */ +#define LCR_WLS_6 0x01 /* 6 bit character length */ +#define LCR_WLS_7 0x02 /* 7 bit character length */ +#define LCR_WLS_8 0x03 /* 8 bit character length */ +#define LCR_STB 0x04 /* Number of stop Bits, off = 1, on = 1.5 or 2) */ +#define LCR_PEN 0x08 /* Parity eneble */ +#define LCR_EPS 0x10 /* Even Parity Select */ +#define LCR_STKP 0x20 /* Stick Parity */ +#define LCR_SBRK 0x40 /* Set Break */ +#define LCR_BKSE 0x80 /* Bank select enable - aka DLAB on 8245 */ -#define LSR_DR 0x01 /* Data ready */ -#define LSR_OE 0x02 /* Overrun */ -#define LSR_PE 0x04 /* Parity error */ -#define LSR_FE 0x08 /* Framing error */ -#define LSR_BI 0x10 /* Break */ -#define LSR_THRE 0x20 /* Xmit holding register empty */ -#define LSR_TEMT 0x40 /* Xmitter empty */ -#define LSR_ERR 0x80 /* Error */ +#define LSR_DR 0x01 /* Data ready */ +#define LSR_OE 0x02 /* Overrun */ +#define LSR_PE 0x04 /* Parity error */ +#define LSR_FE 0x08 /* Framing error */ +#define LSR_BI 0x10 /* Break */ +#define LSR_THRE 0x20 /* Xmit holding register empty */ +#define LSR_TEMT 0x40 /* Xmitter empty */ +#define LSR_ERR 0x80 /* Error */ /* useful defaults for LCR*/ #define LCR_8N1 0x03 -volatile struct NS16550 * NS16550_init(int chan, int baud_divisor); -void NS16550_putc(volatile struct NS16550 *com_port, unsigned char c); -unsigned char NS16550_getc(volatile struct NS16550 *com_port); -int NS16550_tstc(volatile struct NS16550 *com_port); -void NS16550_reinit(volatile struct NS16550 *com_port, int baud_divisor); +volatile struct NS16550 *NS16550_init (int chan, int baud_divisor); +void NS16550_putc (volatile struct NS16550 *com_port, unsigned char c); +unsigned char NS16550_getc (volatile struct NS16550 *com_port); +int NS16550_tstc (volatile struct NS16550 *com_port); +void NS16550_reinit (volatile struct NS16550 *com_port, int baud_divisor); |