* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
- * Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
+ * Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
+ *
+ * (C) Copyright 2003 (2 x 16 bit Flash bank patches)
+ * Rolf Peukert, IMMS gGmbH, <rolf.peukert@imms.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
+ * 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
#include <asm/arch/pxa-regs.h>
#define FLASH_BANK_SIZE 0x02000000
-#define MAIN_SECT_SIZE 0x40000 /* 2x16 = 256k per sector */
+#define MAIN_SECT_SIZE 0x40000 /* 2x16 = 256k per sector */
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
/**
ulong flash_init(void)
{
- int i, j;
- ulong size = 0;
+ int i, j;
+ ulong size = 0;
for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
- ulong flashbase = 0;
- flash_info[i].flash_id =
- (INTEL_MANUFACT & FLASH_VENDMASK) |
- (INTEL_ID_28F128J3 & FLASH_TYPEMASK);
- flash_info[i].size = FLASH_BANK_SIZE;
- flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
- memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
+ ulong flashbase = 0;
+ flash_info[i].flash_id =
+ (INTEL_MANUFACT & FLASH_VENDMASK) |
+ (INTEL_ID_28F128J3 & FLASH_TYPEMASK);
+ flash_info[i].size = FLASH_BANK_SIZE;
+ flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
+ memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
switch (i) {
- case 0:
- flashbase = PHYS_FLASH_1;
- break;
- default:
- panic("configured to many flash banks!\n");
- break;
- }
+ case 0:
+ flashbase = PHYS_FLASH_1;
+ break;
+ default:
+ panic("configured too many flash banks!\n");
+ break;
+ }
for (j = 0; j < flash_info[i].sector_count; j++) {
- flash_info[i].start[j] = flashbase + j*MAIN_SECT_SIZE;
+ flash_info[i].start[j] = flashbase + j*MAIN_SECT_SIZE;
+ }
+ size += flash_info[i].size;
}
- size += flash_info[i].size;
- }
/* Protect monitor and environment sectors */
- flash_protect(FLAG_PROTECT_SET,
- CFG_FLASH_BASE,
- CFG_FLASH_BASE + _armboot_end_data - _armboot_start,
- &flash_info[0]);
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_FLASH_BASE,
+ CFG_FLASH_BASE + monitor_flash_len - 1,
+ &flash_info[0]);
- flash_protect(FLAG_PROTECT_SET,
- CFG_ENV_ADDR,
- CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
- &flash_info[0]);
+ flash_protect(FLAG_PROTECT_SET,
+ CONFIG_ENV_ADDR,
+ CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
+ &flash_info[0]);
- return size;
+ return size;
}
/**
* flash_print_info: - print information about the flash situation
- *
- * @param info:
*/
void flash_print_info (flash_info_t *info)
{
- int i, j;
+ int i, j;
for (j=0; j<CFG_MAX_FLASH_BANKS; j++) {
switch (info->flash_id & FLASH_VENDMASK) {
-
- case (INTEL_MANUFACT & FLASH_VENDMASK):
- printf("Intel: ");
- break;
- default:
- printf("Unknown Vendor ");
- break;
- }
+ case (INTEL_MANUFACT & FLASH_VENDMASK):
+ printf ("Intel: ");
+ break;
+ default:
+ printf ("Unknown Vendor ");
+ break;
+ }
switch (info->flash_id & FLASH_TYPEMASK) {
+ case (INTEL_ID_28F128J3 & FLASH_TYPEMASK):
+ printf("28F128J3 (128Mbit)\n");
+ break;
+ default:
+ printf("Unknown Chip Type\n");
+ return;
+ }
- case (INTEL_ID_28F128J3 & FLASH_TYPEMASK):
- printf("28F128J3 (128Mbit)\n");
- break;
- default:
- printf("Unknown Chip Type\n");
- return;
- }
-
- printf(" Size: %ld MB in %d Sectors\n",
- info->size >> 20, info->sector_count);
+ printf(" Size: %ld MB in %d Sectors\n",
+ info->size >> 20, info->sector_count);
- printf(" Sector Start Addresses:");
+ printf(" Sector Start Addresses:");
for (i = 0; i < info->sector_count; i++) {
- if ((i % 5) == 0) printf ("\n ");
-
- printf (" %08lX%s", info->start[i],
- info->protect[i] ? " (RO)" : " ");
- }
- printf ("\n");
- info++;
- }
+ if ((i % 5) == 0) printf ("\n ");
+
+ printf (" %08lX%s", info->start[i],
+ info->protect[i] ? " (RO)" : " ");
+ }
+ printf ("\n");
+ info++;
+ }
}
/**
* flash_erase: - erase flash sectors
- *
*/
-int flash_erase (flash_info_t *info, int s_first, int s_last)
+int flash_erase(flash_info_t *info, int s_first, int s_last)
{
- int flag, prot, sect;
- int rc = ERR_OK;
+ int flag, prot, sect;
+ int rc = ERR_OK;
- if (info->flash_id == FLASH_UNKNOWN)
- return ERR_UNKNOWN_FLASH_TYPE;
+ if (info->flash_id == FLASH_UNKNOWN)
+ return ERR_UNKNOWN_FLASH_TYPE;
- if ((s_first < 0) || (s_first > s_last)) {
- return ERR_INVAL;
- }
+ if ((s_first < 0) || (s_first > s_last)) {
+ return ERR_INVAL;
+ }
if ((info->flash_id & FLASH_VENDMASK) != (INTEL_MANUFACT & FLASH_VENDMASK))
- return ERR_UNKNOWN_FLASH_VENDOR;
+ return ERR_UNKNOWN_FLASH_VENDOR;
- prot = 0;
- for (sect=s_first; sect<=s_last; ++sect) {
+ prot = 0;
+ for (sect=s_first; sect<=s_last; ++sect) {
if (info->protect[sect]) prot++;
}
if (prot) return ERR_PROTECTED;
- /*
- * Disable interrupts which might cause a timeout
- * here. Remember that our exception vectors are
- * at address 0 in the flash, and we don't want a
- * (ticker) exception to happen while the flash
- * chip is in programming mode.
- */
- flag = disable_interrupts();
+ /*
+ * Disable interrupts which might cause a timeout
+ * here. Remember that our exception vectors are
+ * at address 0 in the flash, and we don't want a
+ * (ticker) exception to happen while the flash
+ * chip is in programming mode.
+ */
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last && !ctrlc(); sect++) {
+ flag = disable_interrupts();
- printf("Erasing sector %2d ... ", sect);
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect<=s_last && !ctrlc(); sect++) {
- /* arm simple, non interrupt dependent timer */
- reset_timer_masked();
+ printf("Erasing sector %2d ... ", sect);
+
+ /* arm simple, non interrupt dependent timer */
+ reset_timer_masked();
- if (info->protect[sect] == 0) { /* not protected */
+ if (info->protect[sect] == 0) { /* not protected */
u32 * volatile addr = (u32 * volatile)(info->start[sect]);
- /* erase sector: */
+ /* erase sector: */
/* The strata flashs are aligned side by side on */
/* the data bus, so we have to write the commands */
- /* to both chips here: */
+ /* to both chips here: */
*addr = 0x00200020; /* erase setup */
*addr = 0x00D000D0; /* erase confirm */
while ((*addr & 0x00800080) != 0x00800080) {
- if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) {
+ if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) {
*addr = 0x00B000B0; /* suspend erase*/
*addr = 0x00FF00FF; /* read mode */
- rc = ERR_TIMOUT;
- goto outahere;
- }
- }
-
+ rc = ERR_TIMOUT;
+ goto outahere;
+ }
+ }
*addr = 0x00500050; /* clear status register cmd. */
- *addr = 0x00FF00FF; /* resest to read mode */
-
+ *addr = 0x00FF00FF; /* reset to read mode */
+ }
+ printf("ok.\n");
}
-
- printf("ok.\n");
- }
-
if (ctrlc()) printf("User Interrupt!\n");
outahere:
-
- /* allow flash to settle - wait 10 ms */
- udelay_masked(10000);
+ /* allow flash to settle - wait 10 ms */
+ udelay_masked(10000);
if (flag) enable_interrupts();
- return rc;
+ return rc;
}
-
/**
- * write_word: - copy memory to flash
- *
- * @param info:
- * @param dest:
- * @param data:
- * @return:
+ * write_long: - copy memory to flash, assume a bank of 2 devices with 16bit each
*/
-static int write_word (flash_info_t *info, ulong dest, ushort data)
+static int write_long (flash_info_t *info, ulong dest, ulong data)
{
- ushort *addr = (ushort *)dest, val;
- int rc = ERR_OK;
- int flag;
+ u32 * volatile addr = (u32 * volatile)dest, val;
+ int rc = ERR_OK;
+ int flag;
+
+ /* read array command - just for the case... */
+ *addr = 0x00FF00FF;
/* Check if Flash is (sufficiently) erased */
if ((*addr & data) != data) return ERR_NOT_ERASED;
- /*
- * Disable interrupts which might cause a timeout
- * here. Remember that our exception vectors are
- * at address 0 in the flash, and we don't want a
- * (ticker) exception to happen while the flash
- * chip is in programming mode.
- */
- flag = disable_interrupts();
-
- /* clear status register command */
- *addr = 0x50;
-
- /* program set-up command */
- *addr = 0x40;
-
- /* latch address/data */
- *addr = data;
-
- /* arm simple, non interrupt dependent timer */
- reset_timer_masked();
-
- /* wait while polling the status register */
- while(((val = *addr) & 0x80) != 0x80) {
- if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) {
- rc = ERR_TIMOUT;
- *addr = 0xB0; /* suspend program command */
- goto outahere;
+ /*
+ * Disable interrupts which might cause a timeout
+ * here. Remember that our exception vectors are
+ * at address 0 in the flash, and we don't want a
+ * (ticker) exception to happen while the flash
+ * chip is in programming mode.
+ */
+ flag = disable_interrupts();
+
+ /* clear status register command */
+ *addr = 0x00500050;
+
+ /* program set-up command */
+ *addr = 0x00400040;
+
+ /* latch address/data */
+ *addr = data;
+
+ /* arm simple, non interrupt dependent timer */
+ reset_timer_masked();
+
+ /* wait while polling the status register */
+ while(((val = *addr) & 0x00800080) != 0x00800080) {
+ if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) {
+ rc = ERR_TIMOUT;
+ /* suspend program command */
+ *addr = 0x00B000B0;
+ goto outahere;
+ }
}
- }
-
- if(val & 0x1A) { /* check for error */
- printf("\nFlash write error %02x at address %08lx\n",
- (int)val, (unsigned long)dest);
- if(val & (1<<3)) {
- printf("Voltage range error.\n");
- rc = ERR_PROG_ERROR;
- goto outahere;
- }
- if(val & (1<<1)) {
- printf("Device protect error.\n");
- rc = ERR_PROTECTED;
- goto outahere;
- }
- if(val & (1<<4)) {
- printf("Programming error.\n");
- rc = ERR_PROG_ERROR;
- goto outahere;
- }
- rc = ERR_PROG_ERROR;
- goto outahere;
- }
-outahere:
+ /* check for errors */
+ if(val & 0x001A001A) {
+ printf("\nFlash write error %02x at address %08lx\n",
+ (int)val, (unsigned long)dest);
+ if(val & 0x00080008) {
+ printf("Voltage range error.\n");
+ rc = ERR_PROG_ERROR;
+ goto outahere;
+ }
+ if(val & 0x00020002) {
+ printf("Device protect error.\n");
+ rc = ERR_PROTECTED;
+ goto outahere;
+ }
+ if(val & 0x00100010) {
+ printf("Programming error.\n");
+ rc = ERR_PROG_ERROR;
+ goto outahere;
+ }
+ rc = ERR_PROG_ERROR;
+ goto outahere;
+ }
- *addr = 0xFF; /* read array command */
+outahere:
+ /* read array command */
+ *addr = 0x00FF00FF;
if (flag) enable_interrupts();
- return rc;
+ return rc;
}
/**
* write_buf: - Copy memory to flash.
- *
- * @param info:
+ *
+ * @param info:
* @param src: source of copy transaction
- * @param addr: where to copy to
- * @param cnt: number of bytes to copy
+ * @param addr: where to copy to
+ * @param cnt: number of bytes to copy
*
* @return error code
*/
+/* "long" version, uses 32bit words */
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
- ulong cp, wp;
- ushort data;
- int l;
- int i, rc;
-
- wp = (addr & ~1); /* get lower word aligned address */
+ ulong cp, wp;
+ ulong data;
+ int l;
+ int i, rc;
+
+ wp = (addr & ~3); /* get lower word aligned address */
+
+ /*
+ * handle unaligned start bytes
+ */
+ if ((l = addr - wp) != 0) {
+ data = 0;
+ for (i=0, cp=wp; i<l; ++i, ++cp) {
+ data = (data >> 8) | (*(uchar *)cp << 24);
+ }
+ for (; i<4 && cnt>0; ++i) {
+ data = (data >> 8) | (*src++ << 24);
+ --cnt;
+ ++cp;
+ }
+ for (; cnt==0 && i<4; ++i, ++cp) {
+ data = (data >> 8) | (*(uchar *)cp << 24);
+ }
- /*
- * handle unaligned start bytes
- */
- if ((l = addr - wp) != 0) {
- data = 0;
- for (i=0, cp=wp; i<l; ++i, ++cp) {
- data = (data >> 8) | (*(uchar *)cp << 8);
- }
- for (; i<2 && cnt>0; ++i) {
- data = (data >> 8) | (*src++ << 8);
- --cnt;
- ++cp;
- }
- for (; cnt==0 && i<2; ++i, ++cp) {
- data = (data >> 8) | (*(uchar *)cp << 8);
+ if ((rc = write_long(info, wp, data)) != 0) {
+ return (rc);
+ }
+ wp += 4;
}
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 2;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= 2) {
- /* data = *((vushort*)src); */
- data = *((ushort*)src);
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
+ /*
+ * handle word aligned part
+ */
+ while (cnt >= 4) {
+ data = *((ulong*)src);
+ if ((rc = write_long(info, wp, data)) != 0) {
+ return (rc);
+ }
+ src += 4;
+ wp += 4;
+ cnt -= 4;
}
- src += 2;
- wp += 2;
- cnt -= 2;
- }
if (cnt == 0) return ERR_OK;
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
- data = (data >> 8) | (*src++ << 8);
- --cnt;
- }
- for (; i<2; ++i, ++cp) {
- data = (data >> 8) | (*(uchar *)cp << 8);
- }
-
- return write_word(info, wp, data);
+ /*
+ * handle unaligned tail bytes
+ */
+ data = 0;
+ for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
+ data = (data >> 8) | (*src++ << 24);
+ --cnt;
+ }
+ for (; i<4; ++i, ++cp) {
+ data = (data >> 8) | (*(uchar *)cp << 24);
+ }
+
+ return write_long(info, wp, data);
}
projects / platform / kernel / u-boot.git / blobdiff