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path: root/drivers/dataflash.c
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Diffstat (limited to 'drivers/dataflash.c')
-rw-r--r--drivers/dataflash.c279
1 files changed, 212 insertions, 67 deletions
diff --git a/drivers/dataflash.c b/drivers/dataflash.c
index 17eb859..91903c8 100644
--- a/drivers/dataflash.c
+++ b/drivers/dataflash.c
@@ -26,18 +26,67 @@
AT91S_DATAFLASH_INFO dataflash_info[CFG_MAX_DATAFLASH_BANKS];
static AT91S_DataFlash DataFlashInst;
+#ifdef CONFIG_AT91SAM9260EK
+int cs[][CFG_MAX_DATAFLASH_BANKS] = {
+ {CFG_DATAFLASH_LOGIC_ADDR_CS0, 0}, /* Logical adress, CS */
+ {CFG_DATAFLASH_LOGIC_ADDR_CS1, 1}
+};
+#elif defined(CONFIG_AT91SAM9263EK)
+int cs[][CFG_MAX_DATAFLASH_BANKS] = {
+ {CFG_DATAFLASH_LOGIC_ADDR_CS0, 0} /* Logical adress, CS */
+};
+#else
int cs[][CFG_MAX_DATAFLASH_BANKS] = {
{CFG_DATAFLASH_LOGIC_ADDR_CS0, 0}, /* Logical adress, CS */
{CFG_DATAFLASH_LOGIC_ADDR_CS3, 3}
};
+#endif
/*define the area offsets*/
+#if defined(CONFIG_AT91SAM9261EK) || defined(CONFIG_AT91SAM9260EK) || defined(CONFIG_AT91SAM9263EK)
+#if defined(CONFIG_NEW_PARTITION)
+dataflash_protect_t area_list[NB_DATAFLASH_AREA] = {
+ {0x00000000, 0x00003FFF, FLAG_PROTECT_SET, 0, "Bootstrap"}, /* ROM code */
+ {0x00004200, 0x000083FF, FLAG_PROTECT_CLEAR, 0, "Environment"}, /* u-boot environment */
+ {0x00008400, 0x0003DDFF, FLAG_PROTECT_SET, 0, "U-Boot"}, /* u-boot code */
+ {0x0003DE00, 0x00041FFF, FLAG_PROTECT_CLEAR, FLAG_SETENV, "MON"}, /* Room for alternative boot monitor */
+ {0x00042000, 0x0018BFFF, FLAG_PROTECT_CLEAR, FLAG_SETENV, "OS"}, /* data area size to tune */
+ {0x0018C000, 0xFFFFFFFF, FLAG_PROTECT_CLEAR, FLAG_SETENV, "FS"}, /* data area size to tune */
+};
+#else
+dataflash_protect_t area_list[NB_DATAFLASH_AREA] = {
+ {0, 0x3fff, FLAG_PROTECT_SET}, /* ROM code */
+ {0x4000, 0x7fff, FLAG_PROTECT_CLEAR}, /* u-boot environment */
+ {0x8000, 0x37fff, FLAG_PROTECT_SET}, /* u-boot code */
+ {0x38000, 0x1fffff, FLAG_PROTECT_CLEAR}, /* data area size to tune */
+};
+#endif
+#elif defined(CONFIG_NEW_PARTITION)
+/*define the area offsets*/
+/* Invalid partitions should be defined with start > end */
+dataflash_protect_t area_list[NB_DATAFLASH_AREA*CFG_MAX_DATAFLASH_BANKS] = {
+ {0x00000000, 0x000083ff, FLAG_PROTECT_SET, 0, "Bootstrap"}, /* ROM code */
+ {0x00008400, 0x00020fff, FLAG_PROTECT_SET, 0, "U-Boot"}, /* u-boot code */
+ {0x00021000, 0x000293ff, FLAG_PROTECT_CLEAR, 0, "Environment"}, /* u-boot environment 8Kb */
+ {0x00029400, 0x00041fff, FLAG_PROTECT_INVALID, 0, "<Unused>"}, /* Rest of Sector 1 */
+ {0x00042000, 0x0018Bfff, FLAG_PROTECT_CLEAR, FLAG_SETENV, "OS"}, /* data area size to tune */
+ {0x0018C000, 0xffffffff, FLAG_PROTECT_CLEAR, FLAG_SETENV, "FS"}, /* data area size to tune */
+
+ {0x00000000, 0xffffffff, FLAG_PROTECT_CLEAR, FLAG_SETENV, "Data"}, /* data area */
+ {0xffffffff, 0x00000000, FLAG_PROTECT_INVALID, 0, "<Invalid>"}, /* Invalid */
+ {0xffffffff, 0x00000000, FLAG_PROTECT_INVALID, 0, "<Invalid>"}, /* Invalid */
+ {0xffffffff, 0x00000000, FLAG_PROTECT_INVALID, 0, "<Invalid>"}, /* Invalid */
+ {0xffffffff, 0x00000000, FLAG_PROTECT_INVALID, 0, "<Invalid>"}, /* Invalid */
+ {0xffffffff, 0x00000000, FLAG_PROTECT_INVALID, 0, "<Invalid>"}, /* Invalid */
+};
+#else
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 */
};
+#endif
extern void AT91F_SpiInit (void);
extern int AT91F_DataflashProbe (int i, AT91PS_DataflashDesc pDesc);
@@ -45,22 +94,28 @@ 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 );
+ unsigned char *src,
+ int dest,
+ int size );
int AT91F_DataflashInit (void)
{
int i, j;
int dfcode;
+ int part = 0;
+ int last_part;
+ int found[CFG_MAX_DATAFLASH_BANKS];
+ unsigned char protected;
AT91F_SpiInit ();
for (i = 0; i < CFG_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][1], &dataflash_info[i].Desc);
+ dfcode = AT91F_DataflashProbe (cs[i][1],
+ &dataflash_info[i].Desc);
switch (dfcode) {
case AT45DB161:
@@ -72,6 +127,7 @@ int AT91F_DataflashInit (void)
dataflash_info[i].Desc.DataFlash_state = IDLE;
dataflash_info[i].logical_address = cs[i][0];
dataflash_info[i].id = dfcode;
+ found[i] += dfcode;;
break;
case AT45DB321:
@@ -83,6 +139,7 @@ int AT91F_DataflashInit (void)
dataflash_info[i].Desc.DataFlash_state = IDLE;
dataflash_info[i].logical_address = cs[i][0];
dataflash_info[i].id = dfcode;
+ found[i] += dfcode;;
break;
case AT45DB642:
@@ -94,7 +151,9 @@ int AT91F_DataflashInit (void)
dataflash_info[i].Desc.DataFlash_state = IDLE;
dataflash_info[i].logical_address = cs[i][0];
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;
@@ -104,9 +163,11 @@ int AT91F_DataflashInit (void)
dataflash_info[i].Desc.DataFlash_state = IDLE;
dataflash_info[i].logical_address = cs[i][0];
dataflash_info[i].id = dfcode;
+ found[i] += dfcode;;
break;
default:
+ dfcode = 0;
break;
}
/* set the last area end to the dataflash size*/
@@ -114,16 +175,64 @@ int AT91F_DataflashInit (void)
(dataflash_info[i].Device.pages_number *
dataflash_info[i].Device.pages_size)-1;
+ last_part=0;
/* 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;
+ 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;
+ last_part = 1;
+ } 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 (1);
+ return found[0];
}
+#ifdef CONFIG_NEW_DF_PARTITION
+int AT91F_DataflashSetEnv (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 < CFG_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(s,"%X",start);
+ setenv(area_list[part].label,s);
+ }
+ part++;
+ }
+ }
+}
+#endif
void dataflash_print_info (void)
{
@@ -131,25 +240,25 @@ void dataflash_print_info (void)
for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
if (dataflash_info[i].id != 0) {
- printf ("DataFlash:");
+ printf("DataFlash:");
switch (dataflash_info[i].id) {
case AT45DB161:
- printf ("AT45DB161\n");
+ printf("AT45DB161\n");
break;
case AT45DB321:
- printf ("AT45DB321\n");
+ printf("AT45DB321\n");
break;
case AT45DB642:
- printf ("AT45DB642\n");
+ printf("AT45DB642\n");
break;
case AT45DB128:
- printf ("AT45DB128\n");
+ printf("AT45DB128\n");
break;
}
- printf ("Nb pages: %6d\n"
+ printf("Nb pages: %6d\n"
"Page Size: %6d\n"
"Size=%8d bytes\n"
"Logical address: 0x%08X\n",
@@ -159,28 +268,44 @@ void dataflash_print_info (void)
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%08lX to %08lX %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)" : "");
+ 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)" : " ");
+#ifdef CONFIG_NEW_DF_PARTITION
+ printf(" %s\n", dataflash_info[i].Device.area_list[j].label);
+#else
+ printf("\n");
+#endif
+ break;
+#ifdef CONFIG_NEW_DF_PARTITION
+ case FLAG_PROTECT_INVALID:
+ break;
+#endif
+ }
}
}
}
}
-/*------------------------------------------------------------------------------*/
-/* Function Name : AT91F_DataflashSelect */
-/* Object : Select the correct device */
-/*------------------------------------------------------------------------------*/
-AT91PS_DataFlash AT91F_DataflashSelect (AT91PS_DataFlash pFlash, unsigned long *addr)
+/*---------------------------------------------------------------------------*/
+/* 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 < CFG_MAX_DATAFLASH_BANKS; i++)
- if ((*addr & 0xFF000000) == dataflash_info[i].logical_address) {
+ if ( dataflash_info[i].id
+ && ((((int) addr) & 0xFF000000) ==
+ dataflash_info[i].logical_address)) {
addr_valid = 1;
break;
}
@@ -194,10 +319,10 @@ AT91PS_DataFlash AT91F_DataflashSelect (AT91PS_DataFlash pFlash, unsigned long *
return (pFlash);
}
-/*------------------------------------------------------------------------------*/
-/* Function Name : addr_dataflash */
-/* Object : Test if address is valid */
-/*------------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+/* Function Name : addr_dataflash */
+/* Object : Test if address is valid */
+/*---------------------------------------------------------------------------*/
int addr_dataflash (unsigned long addr)
{
int addr_valid = 0;
@@ -213,25 +338,27 @@ int addr_dataflash (unsigned long addr)
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)
+/*---------------------------------------------------------------------------*/
+/* 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;
+ pdataFlash->pDevice->pages_number) -
+ ((int)addr & 0x0FFFFFFF))) return 0;
return 1;
}
-/*-----------------------------------------------------------------------------*/
-/* Function Name : prot_dataflash */
-/* Object : Test if destination area is protected */
-/*-----------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+/* Function Name : prot_dataflash */
+/* Object : Test if destination area is protected */
+/*---------------------------------------------------------------------------*/
int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr)
{
int area;
@@ -241,17 +368,23 @@ int area;
(addr < pdataFlash->pDevice->area_list[area].end))
break;
}
- if (area == NB_DATAFLASH_AREA) return -1;
+ 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_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)
+/*--------------------------------------------------------------------------*/
+/* 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 */
@@ -267,27 +400,38 @@ int i,j, area1, area2, addr_valid = 0;
}
/* find start area */
for (area1=0; area1 < NB_DATAFLASH_AREA; area1++) {
- if (start_addr == dataflash_info[i].Device.area_list[area1].start) break;
+ 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 (end_addr == dataflash_info[i].Device.area_list[area2].end)
+ break;
}
- if (area2 == NB_DATAFLASH_AREA) return -1;
+ 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;
+ 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 */
-/*------------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+/* Function Name : read_dataflash */
+/* Object : dataflash memory read */
+/*---------------------------------------------------------------------------*/
int read_dataflash (unsigned long addr, unsigned long size, char *result)
{
unsigned long AddrToRead = addr;
@@ -305,12 +449,12 @@ int read_dataflash (unsigned long addr, unsigned long size, char *result)
}
-/*-----------------------------------------------------------------------------*/
-/* Function Name : write_dataflash */
-/* Object : write a block in dataflash */
-/*-----------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+/* 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 size)
{
unsigned long AddrToWrite = addr_dest;
AT91PS_DataFlash pFlash = &DataFlashInst;
@@ -329,7 +473,8 @@ int write_dataflash (unsigned long addr_dest, unsigned long addr_src,
if (AddrToWrite == -1)
return -1;
- return AT91F_DataFlashWrite (pFlash, (uchar *)addr_src, AddrToWrite, size);
+ return AT91F_DataFlashWrite (pFlash, (uchar *)addr_src,
+ AddrToWrite, size);
}
@@ -339,22 +484,22 @@ void dataflash_perror (int err)
case ERR_OK:
break;
case ERR_TIMOUT:
- printf ("Timeout writing to DataFlash\n");
+ printf("Timeout writing to DataFlash\n");
break;
case ERR_PROTECTED:
- printf ("Can't write to protected DataFlash sectors\n");
+ printf("Can't write to protected/invalid DataFlash sectors\n");
break;
case ERR_INVAL:
- printf ("Outside available DataFlash\n");
+ printf("Outside available DataFlash\n");
break;
case ERR_UNKNOWN_FLASH_TYPE:
- printf ("Unknown Type of DataFlash\n");
+ printf("Unknown Type of DataFlash\n");
break;
case ERR_PROG_ERROR:
- printf ("General DataFlash Programming Error\n");
+ printf("General DataFlash Programming Error\n");
break;
default:
- printf ("%s[%d] FIXME: rc=%d\n", __FILE__, __LINE__, err);
+ printf("%s[%d] FIXME: rc=%d\n", __FILE__, __LINE__, err);
break;
}
}
generated by cgit v1.1 at 2024-11-25 19:41:51 +0000