[J-u-boot.git] / drivers / dataflash.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}
};

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);


int AT91F_DataflashInit (void)
{
	int i, j;
	int dfcode;

	AT91F_SpiInit ();

	for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {

		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;

		default:
			break;
		}

		for (j = 0; j < dataflash_info[i].Device.pages_number; j++)
			dataflash_info[i].protect[j] = FLAG_PROTECT_SET;

	}
	return (1);
}


void dataflash_print_info (void)
{
	int i;

	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;
			}

			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);
		}
	}
}


/*------------------------------------------------------------------------------*/
/* Function Name       : AT91F_DataflashSelect 					*/
/* Object              : Select the correct device				*/
/*------------------------------------------------------------------------------*/
AT91PS_DataFlash AT91F_DataflashSelect (AT91PS_DataFlash pFlash,
										unsigned int *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       : read_dataflash 					*/
/* Object              : dataflash memory read					*/
/*------------------------------------------------------------------------------*/
int read_dataflash (unsigned long addr, unsigned long size, char *result)
{
	int AddrToRead = addr;
	AT91PS_DataFlash pFlash = &DataFlashInst;

	pFlash = AT91F_DataflashSelect (pFlash, &AddrToRead);
	if (pFlash == 0)
		return -1;

	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)
{
	extern AT91S_DataFlashStatus AT91F_DataFlashWrite(
			AT91PS_DataFlash, uchar *, int, int);
	int AddrToWrite = addr_dest;
	AT91PS_DataFlash pFlash = &DataFlashInst;

	pFlash = AT91F_DataflashSelect (pFlash, &AddrToWrite);
	if (AddrToWrite == -1)
		return -1;

	return AT91F_DataFlashWrite (pFlash, (char *) 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
Commit	Line	Data
2abbe075 WD	1	/* LowLevel function for ATMEL DataFlash support
	2	* Author : Hamid Ikdoumi (Atmel)
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License as
	6	* published by the Free Software Foundation; either version 2 of
	7	* the License, or (at your option) any later version.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	17	* MA 02111-1307 USA
	18	*
	19	*/
	20	#include <common.h>
	21	#include <config.h>
	22	#ifdef CONFIG_HAS_DATAFLASH
	23	#include <asm/hardware.h>
	24	#include <dataflash.h>
	25
	26	AT91S_DATAFLASH_INFO dataflash_info[CFG_MAX_DATAFLASH_BANKS];
	27	static AT91S_DataFlash DataFlashInst;
	28
	29	int cs[][CFG_MAX_DATAFLASH_BANKS] = {
	30	{CFG_DATAFLASH_LOGIC_ADDR_CS0, 0}, /* Logical adress, CS */
	31	{CFG_DATAFLASH_LOGIC_ADDR_CS3, 3}
	32	};
	33
	34	extern void AT91F_SpiInit (void);
	35	extern int AT91F_DataflashProbe (int i, AT91PS_DataflashDesc pDesc);
	36	extern int AT91F_DataFlashRead (AT91PS_DataFlash pDataFlash,
	37	unsigned long addr,
	38	unsigned long size, char *buffer);
	39
	40
	41	int AT91F_DataflashInit (void)
	42	{
	43	int i, j;
	44	int dfcode;
	45
	46	AT91F_SpiInit ();
	47
	48	for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
	49
	50	dataflash_info[i].id = 0;
	51	dataflash_info[i].Device.pages_number = 0;
	52	dfcode = AT91F_DataflashProbe (cs[i][1], &dataflash_info[i].Desc);
	53
	54	switch (dfcode) {
	55	case AT45DB161:
	56	dataflash_info[i].Device.pages_number = 4096;
	57	dataflash_info[i].Device.pages_size = 528;
	58	dataflash_info[i].Device.page_offset = 10;
	59	dataflash_info[i].Device.byte_mask = 0x300;
	60	dataflash_info[i].Device.cs = cs[i][1];
	61	dataflash_info[i].Desc.DataFlash_state = IDLE;
	62	dataflash_info[i].logical_address = cs[i][0];
	63	dataflash_info[i].id = dfcode;
	64	break;
65
66	case AT45DB321:
67	dataflash_info[i].Device.pages_number = 8192;
68	dataflash_info[i].Device.pages_size = 528;
69	dataflash_info[i].Device.page_offset = 10;
70	dataflash_info[i].Device.byte_mask = 0x300;
71	dataflash_info[i].Device.cs = cs[i][1];
72	dataflash_info[i].Desc.DataFlash_state = IDLE;
73	dataflash_info[i].logical_address = cs[i][0];
74	dataflash_info[i].id = dfcode;
75	break;
76
77	case AT45DB642:
78	dataflash_info[i].Device.pages_number = 8192;
79	dataflash_info[i].Device.pages_size = 1056;
80	dataflash_info[i].Device.page_offset = 11;
81	dataflash_info[i].Device.byte_mask = 0x700;
82	dataflash_info[i].Device.cs = cs[i][1];
83	dataflash_info[i].Desc.DataFlash_state = IDLE;
84	dataflash_info[i].logical_address = cs[i][0];
85	dataflash_info[i].id = dfcode;
86	break;
87
88	default:
89	break;
90	}
91
92	for (j = 0; j < dataflash_info[i].Device.pages_number; j++)
93	dataflash_info[i].protect[j] = FLAG_PROTECT_SET;
94
95	}
96	return (1);
97	}
98
99
2abbe075 WD	100	void dataflash_print_info (void)
	101	{
	102	int i;
	103
	104	for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
	105	if (dataflash_info[i].id != 0) {
	106	printf ("DataFlash:");
	107	switch (dataflash_info[i].id) {
	108	case AT45DB161:
	109	printf ("AT45DB161\n");
	110	break;
	111
	112	case AT45DB321:
	113	printf ("AT45DB321\n");
	114	break;
	115
	116	case AT45DB642:
	117	printf ("AT45DB642\n");
	118	break;
	119	}
	120
	121	printf ("Nb pages: %6d\n"
	122	"Page Size: %6d\n"
	123	"Size=%8d bytes\n"
	124	"Logical address: 0x%08X\n",
	125	(unsigned int) dataflash_info[i].Device.pages_number,
	126	(unsigned int) dataflash_info[i].Device.pages_size,
	127	(unsigned int) dataflash_info[i].Device.pages_number *
	128	dataflash_info[i].Device.pages_size,
	129	(unsigned int) dataflash_info[i].logical_address);
	130	}
	131	}
	132	}
	133
	134
	135	/------------------------------------------------------------------------------/
	136	/* Function Name : AT91F_DataflashSelect */
	137	/* Object : Select the correct device */
	138	/------------------------------------------------------------------------------/
	139	AT91PS_DataFlash AT91F_DataflashSelect (AT91PS_DataFlash pFlash,
	140	unsigned int *addr)
	141	{
	142	char addr_valid = 0;
	143	int i;
	144
	145	for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++)
	146	if ((*addr & 0xFF000000) == dataflash_info[i].logical_address) {
	147	addr_valid = 1;
	148	break;
	149	}
	150	if (!addr_valid) {
	151	pFlash = (AT91PS_DataFlash) 0;
	152	return pFlash;
	153	}
	154	pFlash->pDataFlashDesc = &(dataflash_info[i].Desc);
	155	pFlash->pDevice = &(dataflash_info[i].Device);
	156	*addr -= dataflash_info[i].logical_address;
	157	return (pFlash);
	158	}
	159
	160	/------------------------------------------------------------------------------/
	161	/* Function Name : addr_dataflash */
	162	/* Object : Test if address is valid */
	163	/------------------------------------------------------------------------------/
164	int addr_dataflash (unsigned long addr)
165	{
166	int addr_valid = 0;
167	int i;
168
169	for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
170	if ((((int) addr) & 0xFF000000) ==
171	dataflash_info[i].logical_address) {
172	addr_valid = 1;
173	break;
174	}
175	}
176
177	return addr_valid;
178	}
179
180	/------------------------------------------------------------------------------/
181	/* Function Name : read_dataflash */
182	/* Object : dataflash memory read */
183	/------------------------------------------------------------------------------/
184	int read_dataflash (unsigned long addr, unsigned long size, char *result)
185	{
186	int AddrToRead = addr;
187	AT91PS_DataFlash pFlash = &DataFlashInst;
188
189	pFlash = AT91F_DataflashSelect (pFlash, &AddrToRead);
190	if (pFlash == 0)
191	return -1;
192
193	return (AT91F_DataFlashRead (pFlash, AddrToRead, size, result));
194	}
195
196
197	/-----------------------------------------------------------------------------/
198	/* Function Name : write_dataflash */
199	/* Object : write a block in dataflash */
200	/-----------------------------------------------------------------------------/
201	int write_dataflash (unsigned long addr_dest, unsigned long addr_src,
202	unsigned long size)
203	{
204	extern AT91S_DataFlashStatus AT91F_DataFlashWrite(
205	AT91PS_DataFlash, uchar *, int, int);
206	int AddrToWrite = addr_dest;
207	AT91PS_DataFlash pFlash = &DataFlashInst;
208
209	pFlash = AT91F_DataflashSelect (pFlash, &AddrToWrite);
210	if (AddrToWrite == -1)
211	return -1;
212
213	return AT91F_DataFlashWrite (pFlash, (char *) addr_src, AddrToWrite,
214	size);
215	}
216
217
218	void dataflash_perror (int err)
219	{
220	switch (err) {
221	case ERR_OK:
222	break;
223	case ERR_TIMOUT:
224	printf ("Timeout writing to DataFlash\n");
225	break;
226	case ERR_PROTECTED:
227	printf ("Can't write to protected DataFlash sectors\n");
228	break;
229	case ERR_INVAL:
230	printf ("Outside available DataFlash\n");
231	break;
232	case ERR_UNKNOWN_FLASH_TYPE:
233	printf ("Unknown Type of DataFlash\n");
234	break;
235	case ERR_PROG_ERROR:
236	printf ("General DataFlash Programming Error\n");
237	break;
238	default:
239	printf ("%s[%d] FIXME: rc=%d\n", __FILE__, __LINE__, err);
240	break;
241	}
242	}
243
244	#endif