mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 22:03:15 +00:00
362 lines
11 KiB
C
362 lines
11 KiB
C
/* 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;
|
|
|
|
int cs[][CFG_MAX_DATAFLASH_BANKS] = {
|
|
{CFG_DATAFLASH_LOGIC_ADDR_CS0, 0}, /* Logical adress, CS */
|
|
{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)
|
|
{
|
|
int i, j;
|
|
int dfcode;
|
|
|
|
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);
|
|
|
|
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;
|
|
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;
|
|
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;
|
|
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;
|
|
}
|
|
/* 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, 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++) {
|
|
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)" : "");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*------------------------------------------------------------------------------*/
|
|
/* 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) {
|
|
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;
|
|
|
|
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 */
|
|
/* 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 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
|