{CFG_DATAFLASH_LOGIC_ADDR_CS3, 3}
};
+/*define the area offsets*/
+dataflash_protect_t area_list[NB_DATAFLASH_AREA] = {
+ {0, 0x7fff, FLAG_PROTECT_SET}, /* ROM code */
+ {0x8000, 0x1ffff, FLAG_PROTECT_SET}, /* u-boot code */
+ {0x20000, 0x27fff, FLAG_PROTECT_CLEAR}, /* u-boot environment */
+ {0x28000, 0x1fffff, FLAG_PROTECT_CLEAR}, /* data area size to tune */
+};
+
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)
{
AT91F_SpiInit ();
for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
-
+ dataflash_info[i].Desc.state = IDLE;
dataflash_info[i].id = 0;
dataflash_info[i].Device.pages_number = 0;
dfcode = AT91F_DataflashProbe (cs[i][1], &dataflash_info[i].Desc);
dataflash_info[i].logical_address = cs[i][0];
dataflash_info[i].id = 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][1];
+ dataflash_info[i].Desc.DataFlash_state = IDLE;
+ dataflash_info[i].logical_address = cs[i][0];
+ dataflash_info[i].id = dfcode;
+ break;
default:
break;
}
-
- for (j = 0; j < dataflash_info[i].Device.pages_number; j++)
- dataflash_info[i].protect[j] = FLAG_PROTECT_SET;
-
+ /* set the last area end to the dataflash size*/
+ area_list[NB_DATAFLASH_AREA -1].end =
+ (dataflash_info[i].Device.pages_number *
+ dataflash_info[i].Device.pages_size)-1;
+
+ /* set the area addresses */
+ for(j = 0; j<NB_DATAFLASH_AREA; j++) {
+ dataflash_info[i].Device.area_list[j].start = area_list[j].start + dataflash_info[i].logical_address;
+ dataflash_info[i].Device.area_list[j].end = area_list[j].end + dataflash_info[i].logical_address;
+ dataflash_info[i].Device.area_list[j].protected = area_list[j].protected;
+ }
}
return (1);
}
void dataflash_print_info (void)
{
- int i;
+ int i, j;
for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
if (dataflash_info[i].id != 0) {
case AT45DB642:
printf ("AT45DB642\n");
break;
+ case AT45DB128:
+ printf ("AT45DB128\n");
+ break;
}
printf ("Nb pages: %6d\n"
(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++) {
+ printf ("Area %i:\t%08X to %08X %s\n", 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)" : "");
+ }
}
}
}
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;
+
+ 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 < CFG_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 (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 */
AT91PS_DataFlash pFlash = &DataFlashInst;
pFlash = AT91F_DataflashSelect (pFlash, &AddrToRead);
+
if (pFlash == 0)
- return -1;
+ return ERR_UNKNOWN_FLASH_TYPE;
+
+ if (size_dataflash(pFlash,addr,size) == 0)
+ return ERR_INVAL;
return (AT91F_DataFlashRead (pFlash, AddrToRead, size, result));
}
int write_dataflash (unsigned long addr_dest, unsigned long addr_src,
unsigned long size)
{
- extern AT91S_DataFlashStatus AT91F_DataFlashWrite(
- AT91PS_DataFlash, uchar *, int, int);
int 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, (char *) addr_src, AddrToWrite,
- size);
+ return AT91F_DataFlashWrite (pFlash, (char *) addr_src, AddrToWrite, size);
}
projects / karo-tx-uboot.git / blobdiff