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u-boot/drivers/dataflash.c
Peter Pearse d4fc6012fd Add MACH_TYPE records for several AT91 boards. 
Merge to two at45.c files into a common file, split to at45.c and spi.c
Fix spelling error in DM9161 PHY Support.
Initialize at91rm9200 board (and set LED).
Add PIO control for at91rm9200dk LEDs and Mux.
Change dataflash partition boundaries to be compatible with Linux 2.6.

Signed-off-by:	Peter Pearse <peter.pearse@arm.com>
Signed-off-by:	Ulf Samuelsson <ulf@atmel.com>
2007-08-14 10:10:52 +01:00

507 lines
16 KiB
C
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/* LowLevel function for ATMEL DataFlash support
* Author : Hamid Ikdoumi (Atmel)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
#include <common.h>
#include <config.h>
#ifdef CONFIG_HAS_DATAFLASH
#include <asm/hardware.h>
#include <dataflash.h>
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);
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 = 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);
switch (dfcode) {
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][1];
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:
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][1];
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:
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][1];
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;
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;
found[i] += dfcode;;
break;
default:
dfcode = 0;
break;
}
/* 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;
last_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;
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 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)
{
int i, j;
for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
if (dataflash_info[i].id != 0) {
printf("DataFlash:");
switch (dataflash_info[i].id) {
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)" : " ");
#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)
{
char addr_valid = 0;
int i;
for (i = 0; i < CFG_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 < CFG_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 < 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(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;
}
}
#endif
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