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-rw-r--r--board/lubbock/flash.c339
1 files changed, 169 insertions, 170 deletions
diff --git a/board/lubbock/flash.c b/board/lubbock/flash.c
index a938750..dcf829b 100644
--- a/board/lubbock/flash.c
+++ b/board/lubbock/flash.c
@@ -28,7 +28,7 @@
#include <linux/byteorder/swab.h>
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
/* Board support for 1 or 2 flash devices */
#define FLASH_PORT_WIDTH32
@@ -53,50 +53,47 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
* Functions
*/
static ulong flash_get_size (FPW *addr, flash_info_t *info);
-static int write_data (flash_info_t *info, ulong dest, FPW data);
-static void flash_get_offsets (ulong base, flash_info_t *info);
-void inline spin_wheel(void);
+static int write_data (flash_info_t *info, ulong dest, FPW data);
+static void flash_get_offsets (ulong base, flash_info_t *info);
+void inline spin_wheel (void);
/*-----------------------------------------------------------------------
*/
unsigned long flash_init (void)
{
- int i;
- ulong size = 0;
-
- for (i = 0; i < CFG_MAX_FLASH_BANKS; i++)
- {
- switch (i)
- {
- case 0:
- flash_get_size((FPW *)PHYS_FLASH_1, &flash_info[i]);
- flash_get_offsets(PHYS_FLASH_1, &flash_info[i]);
- break;
- case 1:
- flash_get_size((FPW *)PHYS_FLASH_2, &flash_info[i]);
- flash_get_offsets(PHYS_FLASH_2, &flash_info[i]);
- break;
- default:
- panic("configured to many flash banks!\n");
- break;
- }
- 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_ENV_ADDR,
- CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
- &flash_info[0]);
-
- return size;
+ int i;
+ ulong size = 0;
+
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+ switch (i) {
+ case 0:
+ flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]);
+ flash_get_offsets (PHYS_FLASH_1, &flash_info[i]);
+ break;
+ case 1:
+ flash_get_size ((FPW *) PHYS_FLASH_2, &flash_info[i]);
+ flash_get_offsets (PHYS_FLASH_2, &flash_info[i]);
+ break;
+ default:
+ panic ("configured to many flash banks!\n");
+ break;
+ }
+ 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_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0] );
+
+ return size;
}
/*-----------------------------------------------------------------------
@@ -119,39 +116,45 @@ static void flash_get_offsets (ulong base, flash_info_t *info)
/*-----------------------------------------------------------------------
*/
-void flash_print_info (flash_info_t *info)
+void flash_print_info (flash_info_t *info)
{
int i;
if (info->flash_id == FLASH_UNKNOWN) {
printf ("missing or unknown FLASH type\n");
return;
- }
+ }
switch (info->flash_id & FLASH_VENDMASK) {
- case FLASH_MAN_INTEL: printf ("INTEL "); break;
- default: printf ("Unknown Vendor "); break;
+ case FLASH_MAN_INTEL:
+ printf ("INTEL ");
+ break;
+ default:
+ printf ("Unknown Vendor ");
+ break;
}
switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_28F128J3A:
- printf ("28F128J3A\n"); break;
- default: printf ("Unknown Chip Type\n"); break;
- }
+ case FLASH_28F128J3A:
+ printf ("28F128J3A\n");
+ break;
+ default:
+ printf ("Unknown Chip Type\n");
+ break;
+ }
printf (" Size: %ld MB in %d Sectors\n",
- info->size >> 20, info->sector_count);
+ info->size >> 20, info->sector_count);
printf (" Sector Start Addresses:");
- for (i=0; i<info->sector_count; ++i) {
- if ((i % 5) == 0)
- printf ("\n ");
+ 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->protect[i] ? " (RO)" : " ");
+ }
+ printf ("\n");
return;
}
@@ -163,37 +166,37 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info)
volatile FPW value;
/* Write auto select command: read Manufacturer ID */
- addr[0x5555] = (FPW)0x00AA00AA;
- addr[0x2AAA] = (FPW)0x00550055;
- addr[0x5555] = (FPW)0x00900090;
+ addr[0x5555] = (FPW) 0x00AA00AA;
+ addr[0x2AAA] = (FPW) 0x00550055;
+ addr[0x5555] = (FPW) 0x00900090;
- mb();
+ mb ();
value = addr[0];
- switch (value) {
+ switch (value) {
- case (FPW)INTEL_MANUFACT:
- info->flash_id = FLASH_MAN_INTEL;
- break;
+ case (FPW) INTEL_MANUFACT:
+ info->flash_id = FLASH_MAN_INTEL;
+ break;
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
- addr[0] = (FPW)0x00FF00FF; /* restore read mode */
- return (0); /* no or unknown flash */
+ addr[0] = (FPW) 0x00FF00FF; /* restore read mode */
+ return (0); /* no or unknown flash */
}
- mb();
- value = addr[1]; /* device ID */
+ mb ();
+ value = addr[1]; /* device ID */
- switch (value) {
+ switch (value) {
- case (FPW)INTEL_ID_28F128J3A:
- info->flash_id += FLASH_28F128J3A;
- info->sector_count = 128;
- info->size = 0x02000000;
- break; /* => 16 MB */
+ case (FPW) INTEL_ID_28F128J3A:
+ info->flash_id += FLASH_28F128J3A;
+ info->sector_count = 128;
+ info->size = 0x02000000;
+ break; /* => 16 MB */
default:
info->flash_id = FLASH_UNKNOWN;
@@ -204,9 +207,9 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info)
printf ("** ERROR: sector count %d > max (%d) **\n",
info->sector_count, CFG_MAX_FLASH_SECT);
info->sector_count = CFG_MAX_FLASH_SECT;
- }
+ }
- addr[0] = (FPW)0x00FF00FF; /* restore read mode */
+ addr[0] = (FPW) 0x00FF00FF; /* restore read mode */
return (info->size);
}
@@ -215,34 +218,34 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info)
/*-----------------------------------------------------------------------
*/
-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;
- ulong type, start, now, last;
+ int flag, prot, sect;
+ ulong type, start, last;
int rcode = 0;
- if ((s_first < 0) || (s_first > s_last)) {
+ if ((s_first < 0) || (s_first > s_last)) {
if (info->flash_id == FLASH_UNKNOWN) {
printf ("- missing\n");
} else {
printf ("- no sectors to erase\n");
}
return 1;
- }
+ }
type = (info->flash_id & FLASH_VENDMASK);
if ((type != FLASH_MAN_INTEL)) {
printf ("Can't erase unknown flash type %08lx - aborted\n",
info->flash_id);
return 1;
- }
+ }
- prot = 0;
- for (sect=s_first; sect<=s_last; ++sect) {
- if (info->protect[sect]) {
- prot++;
+ prot = 0;
+ for (sect = s_first; sect <= s_last; ++sect) {
+ if (info->protect[sect]) {
+ prot++;
+ }
}
- }
if (prot) {
printf ("- Warning: %d protected sectors will not be erased!\n",
@@ -252,42 +255,42 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
}
start = get_timer (0);
- last = start;
+ last = start;
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts ();
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect <= s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
- FPWV *addr = (FPWV *)(info->start[sect]);
+ FPWV *addr = (FPWV *) (info->start[sect]);
FPW status;
- printf("Erasing sector %2d ... ", sect);
+ printf ("Erasing sector %2d ... ", sect);
- /* arm simple, non interrupt dependent timer */
- reset_timer_masked();
+ /* arm simple, non interrupt dependent timer */
+ reset_timer_masked ();
- *addr = (FPW)0x00500050; /* clear status register */
- *addr = (FPW)0x00200020; /* erase setup */
- *addr = (FPW)0x00D000D0; /* erase confirm */
+ *addr = (FPW) 0x00500050; /* clear status register */
+ *addr = (FPW) 0x00200020; /* erase setup */
+ *addr = (FPW) 0x00D000D0; /* erase confirm */
- while (((status = *addr) & (FPW)0x00800080) != (FPW)0x00800080) {
- if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) {
+ while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
+ if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
printf ("Timeout\n");
- *addr = (FPW)0x00B000B0; /* suspend erase */
- *addr = (FPW)0x00FF00FF; /* reset to read mode */
+ *addr = (FPW) 0x00B000B0; /* suspend erase */
+ *addr = (FPW) 0x00FF00FF; /* reset to read mode */
rcode = 1;
break;
- }
- }
+ }
+ }
- *addr = 0x00500050; /* clear status register cmd. */
- *addr = 0x00FF00FF; /* resest to read mode */
+ *addr = 0x00500050; /* clear status register cmd. */
+ *addr = 0x00FF00FF; /* resest to read mode */
printf (" done\n");
- }
- }
+ }
+ }
return rcode;
}
@@ -301,7 +304,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
- ulong cp, wp;
+ ulong cp, wp;
FPW data;
int count, i, l, rc, port_width;
@@ -317,67 +320,66 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
port_width = 4;
#endif
- /*
- * 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);
- }
- for (; i<port_width && cnt>0; ++i) {
+ /*
+ * 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);
+ }
+ for (; i < port_width && cnt > 0; ++i) {
data = (data << 8) | *src++;
- --cnt;
- ++cp;
- }
- for (; cnt==0 && i<port_width; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
+ --cnt;
+ ++cp;
+ }
+ for (; cnt == 0 && i < port_width; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *) cp);
+ }
- if ((rc = write_data(info, wp, SWAP(data))) != 0) {
- return (rc);
- }
+ if ((rc = write_data (info, wp, SWAP (data))) != 0) {
+ return (rc);
+ }
wp += port_width;
- }
+ }
- /*
- * handle word aligned part
- */
+ /*
+ * handle word aligned part
+ */
count = 0;
while (cnt >= port_width) {
data = 0;
- for (i=0; i<port_width; ++i) {
+ for (i = 0; i < port_width; ++i) {
data = (data << 8) | *src++;
}
- if ((rc = write_data(info, wp, SWAP(data))) != 0) {
- return (rc);
- }
- wp += port_width;
+ if ((rc = write_data (info, wp, SWAP (data))) != 0) {
+ return (rc);
+ }
+ wp += port_width;
cnt -= port_width;
- if (count++ > 0x800)
- {
- spin_wheel();
+ if (count++ > 0x800) {
+ spin_wheel ();
count = 0;
}
- }
+ }
- if (cnt == 0) {
+ if (cnt == 0) {
return (0);
- }
+ }
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<port_width && cnt>0; ++i, ++cp) {
+ /*
+ * handle unaligned tail bytes
+ */
+ data = 0;
+ for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) {
data = (data << 8) | *src++;
- --cnt;
- }
- for (; i<port_width; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
+ --cnt;
+ }
+ for (; i < port_width; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *) cp);
}
- return (write_data(info, wp, SWAP(data)));
+ return (write_data (info, wp, SWAP (data)));
}
/*-----------------------------------------------------------------------
@@ -388,45 +390,42 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
*/
static int write_data (flash_info_t *info, ulong dest, FPW data)
{
- FPWV *addr = (FPWV *)dest;
+ FPWV *addr = (FPWV *) dest;
ulong status;
- ulong start;
int flag;
/* Check if Flash is (sufficiently) erased */
if ((*addr & data) != data) {
- printf("not erased at %08lx (%x)\n",(ulong)addr,*addr);
+ printf ("not erased at %08lx (%lx)\n", (ulong) addr, *addr);
return (2);
}
/* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
+ flag = disable_interrupts ();
- *addr = (FPW)0x00400040; /* write setup */
+ *addr = (FPW) 0x00400040; /* write setup */
*addr = data;
/* arm simple, non interrupt dependent timer */
- reset_timer_masked();
+ reset_timer_masked ();
/* wait while polling the status register */
- while (((status = *addr) & (FPW)0x00800080) != (FPW)0x00800080) {
- if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) {
- *addr = (FPW)0x00FF00FF; /* restore read mode */
+ while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
+ if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) {
+ *addr = (FPW) 0x00FF00FF; /* restore read mode */
return (1);
}
- }
+ }
- *addr = (FPW)0x00FF00FF; /* restore read mode */
+ *addr = (FPW) 0x00FF00FF; /* restore read mode */
return (0);
}
-void inline
-spin_wheel(void)
+void inline spin_wheel (void)
{
- static int r=0,p=0;
- static char w[] = "\\/-";
+ static int p = 0;
+ static char w[] = "\\/-";
- printf("\010%c", w[p]);
- (++p == 3) ? (p = 0) : 0;
+ printf ("\010%c", w[p]);
+ (++p == 3) ? (p = 0) : 0;
}
-
generated by cgit v1.1 at 2024-11-21 21:27:46 +0000