diff options
Diffstat (limited to 'drivers/mtd/dataflash.c')
| -rw-r--r-- | drivers/mtd/dataflash.c | 448 |
1 files changed, 0 insertions, 448 deletions
diff --git a/drivers/mtd/dataflash.c b/drivers/mtd/dataflash.c deleted file mode 100644 index e961f51..0000000 --- a/drivers/mtd/dataflash.c +++ /dev/null @@ -1,448 +0,0 @@ -/* - * LowLevel function for ATMEL DataFlash support - * Author : Hamid Ikdoumi (Atmel) - * - * SPDX-License-Identifier: GPL-2.0+ - */ -#include <common.h> -#include <config.h> -#include <asm/hardware.h> -#include <dataflash.h> - -static AT91S_DataFlash DataFlashInst; - -extern void AT91F_SpiInit (void); -extern int AT91F_DataflashProbe (int i, AT91PS_DataflashDesc pDesc); -extern int AT91F_DataFlashRead (AT91PS_DataFlash pDataFlash, - unsigned long addr, - unsigned long size, char *buffer); -extern int AT91F_DataFlashWrite( AT91PS_DataFlash pDataFlash, - unsigned char *src, - int dest, - int size ); - -int AT91F_DataflashInit (void) -{ - int i, j; - int dfcode; - int part; - int found[CONFIG_SYS_MAX_DATAFLASH_BANKS]; - unsigned char protected; - - AT91F_SpiInit (); - - for (i = 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) { - found[i] = 0; - dataflash_info[i].Desc.state = IDLE; - dataflash_info[i].id = 0; - dataflash_info[i].Device.pages_number = 0; - dfcode = AT91F_DataflashProbe (cs[i].cs, - &dataflash_info[i].Desc); - - switch (dfcode) { - case AT45DB021: - dataflash_info[i].Device.pages_number = 1024; - dataflash_info[i].Device.pages_size = 264; - dataflash_info[i].Device.page_offset = 9; - dataflash_info[i].Device.byte_mask = 0x300; - dataflash_info[i].Device.cs = cs[i].cs; - dataflash_info[i].Desc.DataFlash_state = IDLE; - dataflash_info[i].logical_address = cs[i].addr; - dataflash_info[i].id = dfcode; - found[i] += dfcode; - break; - - case AT45DB081: - dataflash_info[i].Device.pages_number = 4096; - dataflash_info[i].Device.pages_size = 264; - dataflash_info[i].Device.page_offset = 9; - dataflash_info[i].Device.byte_mask = 0x300; - dataflash_info[i].Device.cs = cs[i].cs; - dataflash_info[i].Desc.DataFlash_state = IDLE; - dataflash_info[i].logical_address = cs[i].addr; - dataflash_info[i].id = dfcode; - found[i] += dfcode; - break; - - case AT45DB161: - dataflash_info[i].Device.pages_number = 4096; - dataflash_info[i].Device.pages_size = 528; - dataflash_info[i].Device.page_offset = 10; - dataflash_info[i].Device.byte_mask = 0x300; - dataflash_info[i].Device.cs = cs[i].cs; - dataflash_info[i].Desc.DataFlash_state = IDLE; - dataflash_info[i].logical_address = cs[i].addr; - dataflash_info[i].id = dfcode; - found[i] += dfcode; - break; - - case AT45DB321: - dataflash_info[i].Device.pages_number = 8192; - dataflash_info[i].Device.pages_size = 528; - dataflash_info[i].Device.page_offset = 10; - dataflash_info[i].Device.byte_mask = 0x300; - dataflash_info[i].Device.cs = cs[i].cs; - dataflash_info[i].Desc.DataFlash_state = IDLE; - dataflash_info[i].logical_address = cs[i].addr; - dataflash_info[i].id = dfcode; - found[i] += dfcode; - break; - - case AT45DB642: - dataflash_info[i].Device.pages_number = 8192; - dataflash_info[i].Device.pages_size = 1056; - dataflash_info[i].Device.page_offset = 11; - dataflash_info[i].Device.byte_mask = 0x700; - dataflash_info[i].Device.cs = cs[i].cs; - dataflash_info[i].Desc.DataFlash_state = IDLE; - dataflash_info[i].logical_address = cs[i].addr; - dataflash_info[i].id = dfcode; - found[i] += dfcode; - break; - - case AT45DB128: - dataflash_info[i].Device.pages_number = 16384; - dataflash_info[i].Device.pages_size = 1056; - dataflash_info[i].Device.page_offset = 11; - dataflash_info[i].Device.byte_mask = 0x700; - dataflash_info[i].Device.cs = cs[i].cs; - dataflash_info[i].Desc.DataFlash_state = IDLE; - dataflash_info[i].logical_address = cs[i].addr; - dataflash_info[i].id = dfcode; - found[i] += dfcode; - break; - - default: - dfcode = 0; - break; - } - /* set the last area end to the dataflash size*/ - dataflash_info[i].end_address = - (dataflash_info[i].Device.pages_number * - dataflash_info[i].Device.pages_size) - 1; - - part = 0; - /* set the area addresses */ - for(j = 0; j < NB_DATAFLASH_AREA; j++) { - if(found[i]!=0) { - dataflash_info[i].Device.area_list[j].start = - area_list[part].start + - dataflash_info[i].logical_address; - if(area_list[part].end == 0xffffffff) { - dataflash_info[i].Device.area_list[j].end = - dataflash_info[i].end_address + - dataflash_info[i].logical_address; - } else { - dataflash_info[i].Device.area_list[j].end = - area_list[part].end + - dataflash_info[i].logical_address; - } - protected = area_list[part].protected; - /* Set the environment according to the label...*/ - if(protected == FLAG_PROTECT_INVALID) { - dataflash_info[i].Device.area_list[j].protected = - FLAG_PROTECT_INVALID; - } else { - dataflash_info[i].Device.area_list[j].protected = - protected; - } - strcpy((char*)(dataflash_info[i].Device.area_list[j].label), - (const char *)area_list[part].label); - } - part++; - } - } - return found[0]; -} - -void AT91F_Dataflashenv_set(void) -{ - int i, j; - int part; - unsigned char env; - unsigned char s[32]; /* Will fit a long int in hex */ - unsigned long start; - - for (i = 0, part= 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) { - for(j = 0; j < NB_DATAFLASH_AREA; j++) { - env = area_list[part].setenv; - /* Set the environment according to the label...*/ - if((env & FLAG_SETENV) == FLAG_SETENV) { - start = dataflash_info[i].Device.area_list[j].start; - sprintf((char *)s, "%lX", start); - env_set((char *)area_list[part].label, - (char *)s); - } - part++; - } - } -} - -void dataflash_print_info (void) -{ - int i, j; - - for (i = 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) { - if (dataflash_info[i].id != 0) { - printf("DataFlash:"); - switch (dataflash_info[i].id) { - case AT45DB021: - printf("AT45DB021\n"); - break; - case AT45DB161: - printf("AT45DB161\n"); - break; - - case AT45DB321: - printf("AT45DB321\n"); - break; - - case AT45DB642: - printf("AT45DB642\n"); - break; - case AT45DB128: - printf("AT45DB128\n"); - break; - } - - printf("Nb pages: %6d\n" - "Page Size: %6d\n" - "Size=%8d bytes\n" - "Logical address: 0x%08X\n", - (unsigned int) dataflash_info[i].Device.pages_number, - (unsigned int) dataflash_info[i].Device.pages_size, - (unsigned int) dataflash_info[i].Device.pages_number * - dataflash_info[i].Device.pages_size, - (unsigned int) dataflash_info[i].logical_address); - for (j = 0; j < NB_DATAFLASH_AREA; j++) { - switch(dataflash_info[i].Device.area_list[j].protected) { - case FLAG_PROTECT_SET: - case FLAG_PROTECT_CLEAR: - printf("Area %i:\t%08lX to %08lX %s", j, - dataflash_info[i].Device.area_list[j].start, - dataflash_info[i].Device.area_list[j].end, - (dataflash_info[i].Device.area_list[j].protected==FLAG_PROTECT_SET) ? "(RO)" : " "); - printf(" %s\n", dataflash_info[i].Device.area_list[j].label); - break; - case FLAG_PROTECT_INVALID: - break; - } - } - } - } -} - -/*---------------------------------------------------------------------------*/ -/* Function Name : AT91F_DataflashSelect */ -/* Object : Select the correct device */ -/*---------------------------------------------------------------------------*/ -AT91PS_DataFlash AT91F_DataflashSelect (AT91PS_DataFlash pFlash, - unsigned long *addr) -{ - char addr_valid = 0; - int i; - - for (i = 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) - if ( dataflash_info[i].id - && ((((int) *addr) & 0xFF000000) == - dataflash_info[i].logical_address)) { - addr_valid = 1; - break; - } - if (!addr_valid) { - pFlash = (AT91PS_DataFlash) 0; - return pFlash; - } - pFlash->pDataFlashDesc = &(dataflash_info[i].Desc); - pFlash->pDevice = &(dataflash_info[i].Device); - *addr -= dataflash_info[i].logical_address; - return (pFlash); -} - -/*---------------------------------------------------------------------------*/ -/* Function Name : addr_dataflash */ -/* Object : Test if address is valid */ -/*---------------------------------------------------------------------------*/ -int addr_dataflash (unsigned long addr) -{ - int addr_valid = 0; - int i; - - for (i = 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) { - if ((((int) addr) & 0xFF000000) == - dataflash_info[i].logical_address) { - addr_valid = 1; - break; - } - } - - return addr_valid; -} - -/*---------------------------------------------------------------------------*/ -/* Function Name : size_dataflash */ -/* Object : Test if address is valid regarding the size */ -/*---------------------------------------------------------------------------*/ -int size_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr, - unsigned long size) -{ - /* is outside the dataflash */ - if (((int)addr & 0x0FFFFFFF) > (pdataFlash->pDevice->pages_size * - pdataFlash->pDevice->pages_number)) return 0; - /* is too large for the dataflash */ - if (size > ((pdataFlash->pDevice->pages_size * - pdataFlash->pDevice->pages_number) - - ((int)addr & 0x0FFFFFFF))) return 0; - - return 1; -} - -/*---------------------------------------------------------------------------*/ -/* Function Name : prot_dataflash */ -/* Object : Test if destination area is protected */ -/*---------------------------------------------------------------------------*/ -int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr) -{ - int area; - - /* find area */ - for (area = 0; area < NB_DATAFLASH_AREA; area++) { - if ((addr >= pdataFlash->pDevice->area_list[area].start) && - (addr < pdataFlash->pDevice->area_list[area].end)) - break; - } - if (area == NB_DATAFLASH_AREA) - return -1; - - /*test protection value*/ - if (pdataFlash->pDevice->area_list[area].protected == FLAG_PROTECT_SET) - return 0; - if (pdataFlash->pDevice->area_list[area].protected == FLAG_PROTECT_INVALID) - return 0; - - return 1; -} - -/*--------------------------------------------------------------------------*/ -/* Function Name : dataflash_real_protect */ -/* Object : protect/unprotect area */ -/*--------------------------------------------------------------------------*/ -int dataflash_real_protect (int flag, unsigned long start_addr, - unsigned long end_addr) -{ - int i,j, area1, area2, addr_valid = 0; - - /* find dataflash */ - for (i = 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) { - if ((((int) start_addr) & 0xF0000000) == - dataflash_info[i].logical_address) { - addr_valid = 1; - break; - } - } - if (!addr_valid) { - return -1; - } - /* find start area */ - for (area1 = 0; area1 < NB_DATAFLASH_AREA; area1++) { - if (start_addr == dataflash_info[i].Device.area_list[area1].start) - break; - } - if (area1 == NB_DATAFLASH_AREA) return -1; - /* find end area */ - for (area2 = 0; area2 < NB_DATAFLASH_AREA; area2++) { - if (end_addr == dataflash_info[i].Device.area_list[area2].end) - break; - } - if (area2 == NB_DATAFLASH_AREA) - return -1; - - /*set protection value*/ - for(j = area1; j < area2 + 1 ; j++) - if(dataflash_info[i].Device.area_list[j].protected - != FLAG_PROTECT_INVALID) { - if (flag == 0) { - dataflash_info[i].Device.area_list[j].protected - = FLAG_PROTECT_CLEAR; - } else { - dataflash_info[i].Device.area_list[j].protected - = FLAG_PROTECT_SET; - } - } - - return (area2 - area1 + 1); -} - -/*---------------------------------------------------------------------------*/ -/* Function Name : read_dataflash */ -/* Object : dataflash memory read */ -/*---------------------------------------------------------------------------*/ -int read_dataflash (unsigned long addr, unsigned long size, char *result) -{ - unsigned long AddrToRead = addr; - AT91PS_DataFlash pFlash = &DataFlashInst; - - pFlash = AT91F_DataflashSelect (pFlash, &AddrToRead); - - if (pFlash == 0) - return ERR_UNKNOWN_FLASH_TYPE; - - if (size_dataflash(pFlash,addr,size) == 0) - return ERR_INVAL; - - return (AT91F_DataFlashRead (pFlash, AddrToRead, size, result)); -} - -/*---------------------------------------------------------------------------*/ -/* Function Name : write_dataflash */ -/* Object : write a block in dataflash */ -/*---------------------------------------------------------------------------*/ -int write_dataflash (unsigned long addr_dest, unsigned long addr_src, - unsigned long size) -{ - unsigned long AddrToWrite = addr_dest; - AT91PS_DataFlash pFlash = &DataFlashInst; - - pFlash = AT91F_DataflashSelect (pFlash, &AddrToWrite); - - if (pFlash == 0) - return ERR_UNKNOWN_FLASH_TYPE; - - if (size_dataflash(pFlash,addr_dest,size) == 0) - return ERR_INVAL; - - if (prot_dataflash(pFlash,addr_dest) == 0) - return ERR_PROTECTED; - - if (AddrToWrite == -1) - return -1; - - return AT91F_DataFlashWrite (pFlash, (uchar *)addr_src, - AddrToWrite, size); -} - -void dataflash_perror (int err) -{ - switch (err) { - case ERR_OK: - break; - case ERR_TIMOUT: - printf("Timeout writing to DataFlash\n"); - break; - case ERR_PROTECTED: - printf("Can't write to protected/invalid DataFlash sectors\n"); - break; - case ERR_INVAL: - printf("Outside available DataFlash\n"); - break; - case ERR_UNKNOWN_FLASH_TYPE: - printf("Unknown Type of DataFlash\n"); - break; - case ERR_PROG_ERROR: - printf("General DataFlash Programming Error\n"); - break; - default: - printf("%s[%d] FIXME: rc=%d\n", __FILE__, __LINE__, err); - break; - } -} |