#define I2C_BACKUP_ADDR 0x7C00 /* 0x200 bytes for backup */
#define IMAGE_SIZE CONFIG_SYS_MONITOR_LEN /* ugly, but it works for now */
-extern flash_info_t flash_info[]; /* info for FLASH chips */
+#if defined(CONFIG_PIP405) || defined(CONFIG_MIP405)
+/*-----------------------------------------------------------------------
+ * On PIP/MIP405 we have 3 (4) possible boot mode
+ *
+ * - Boot from Flash (Flash CS = CS0, MPS CS = CS1)
+ * - Boot from MPS (Flash CS = CS1, MPS CS = CS0)
+ * - Boot from PCI with Flash map (Flash CS = CS0, MPS CS = CS1)
+ * - Boot from PCI with MPS map (Flash CS = CS1, MPS CS = CS0)
+ * The flash init is the first board specific routine which is called
+ * after code relocation (running from SDRAM)
+ * The first thing we do is to map the Flash CS to the Flash area and
+ * the MPS CS to the MPS area. Since the flash size is unknown at this
+ * point, we use the max flash size and the lowest flash address as base.
+ *
+ * After flash detection we adjust the size of the CS area accordingly.
+ * update_flash_size() will fix in wrong values in the flash_info structure,
+ * misc_init_r() will fix the values in the board info structure
+ */
+int get_boot_mode(void)
+{
+ unsigned long pbcr;
+ int res = 0;
+ pbcr = mfdcr(CPC0_PSR);
+ if ((pbcr & PSR_ROM_WIDTH_MASK) == 0)
+ /* boot via MPS or MPS mapping */
+ res = BOOT_MPS;
+ if (pbcr & PSR_ROM_LOC)
+ /* boot via PCI.. */
+ res |= BOOT_PCI;
+ return res;
+}
+
+/* Map the flash high (in boot area)
+ This code can only be executed from SDRAM (after relocation).
+*/
+void setup_cs_reloc(void)
+{
+ int mode;
+ /*
+ * since we are relocated, we can set-up the CS finaly
+ * but first of all, switch off PCI mapping (in case it
+ * was a PCI boot)
+ */
+ out32r(PMM0MA, 0L);
+ /* get boot mode */
+ mode = get_boot_mode();
+ /*
+ * we map the flash high in every case
+ * first find out to which CS the flash is attached to
+ */
+ if (mode & BOOT_MPS) {
+ /* map flash high on CS1 and MPS on CS0 */
+ mtdcr(EBC0_CFGADDR, PB0AP);
+ mtdcr(EBC0_CFGDATA, MPS_AP);
+ mtdcr(EBC0_CFGADDR, PB0CR);
+ mtdcr(EBC0_CFGDATA, MPS_CR);
+ /*
+ * we use the default values (max values) for the flash
+ * because its real size is not yet known
+ */
+ mtdcr(EBC0_CFGADDR, PB1AP);
+ mtdcr(EBC0_CFGDATA, FLASH_AP);
+ mtdcr(EBC0_CFGADDR, PB1CR);
+ mtdcr(EBC0_CFGDATA, FLASH_CR_B);
+ } else {
+ /* map flash high on CS0 and MPS on CS1 */
+ mtdcr(EBC0_CFGADDR, PB1AP);
+ mtdcr(EBC0_CFGDATA, MPS_AP);
+ mtdcr(EBC0_CFGADDR, PB1CR);
+ mtdcr(EBC0_CFGDATA, MPS_CR);
+ /*
+ * we use the default values (max values) for the flash
+ * because its real size is not yet known
+ */
+ mtdcr(EBC0_CFGADDR, PB0AP);
+ mtdcr(EBC0_CFGDATA, FLASH_AP);
+ mtdcr(EBC0_CFGADDR, PB0CR);
+ mtdcr(EBC0_CFGDATA, FLASH_CR_B);
+ }
+}
+#endif /* #if defined(CONFIG_PIP405) || defined(CONFIG_MIP405) */
+
+#ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
+/* adjust flash start and protection info */
+int update_flash_size(int flash_size)
+{
+ int i = 0, mode;
+ flash_info_t *info = &flash_info[0];
+ unsigned long flashcr;
+ unsigned long flash_base = (0 - flash_size) & 0xFFF00000;
+
+ if (flash_size > 128*1024*1024) {
+ printf("\n ### ERROR, wrong flash size: %X, reset board ###\n",
+ flash_size);
+ hang();
+ }
+
+ if ((flash_size >> 20) != 0)
+ i = __ilog2(flash_size >> 20);
+
+ /* set up flash CS according to the size */
+ mode = get_boot_mode();
+ if (mode & BOOT_MPS) {
+ /* flash is on CS1 */
+ mtdcr(EBC0_CFGADDR, PB1CR);
+ flashcr = mfdcr(EBC0_CFGDATA);
+ /* we map the flash high in every case */
+ flashcr &= 0x0001FFFF; /* mask out address bits */
+ flashcr |= flash_base; /* start addr */
+ flashcr |= (i << 17); /* size addr */
+ mtdcr(EBC0_CFGADDR, PB1CR);
+ mtdcr(EBC0_CFGDATA, flashcr);
+ } else {
+ /* flash is on CS0 */
+ mtdcr(EBC0_CFGADDR, PB0CR);
+ flashcr = mfdcr(EBC0_CFGDATA);
+ /* we map the flash high in every case */
+ flashcr &= 0x0001FFFF; /* mask out address bits */
+ flashcr |= flash_base; /* start addr */
+ flashcr |= (i << 17); /* size addr */
+ mtdcr(EBC0_CFGADDR, PB0CR);
+ mtdcr(EBC0_CFGDATA, flashcr);
+ }
+
+ for (i = 0; i < info->sector_count; i++)
+ /* adjust sector start address */
+ info->start[i] = flash_base +
+ (info->start[i] - CONFIG_SYS_FLASH_BASE);
+
+ /* unprotect all sectors */
+ flash_protect(FLAG_PROTECT_CLEAR,
+ info->start[0],
+ 0xFFFFFFFF,
+ info);
+ flash_protect_default();
+ /* protect reset vector too*/
+ flash_protect(FLAG_PROTECT_SET,
+ info->start[info->sector_count-1],
+ 0xFFFFFFFF,
+ info);
+
+ return 0;
+}
+#endif
static int
mpl_prg(uchar *src, ulong size)
{
ulong start;
- flash_info_t *info;
+ flash_info_t *info = &flash_info[0];
int i, rc;
#if defined(CONFIG_PATI)
int start_sect;
ulong *magic = (ulong *)src;
#endif
- info = &flash_info[0];
-
#if defined(CONFIG_PIP405) || defined(CONFIG_MIP405) || defined(CONFIG_PATI)
if (uimage_to_cpu (magic[0]) != IH_MAGIC) {
puts("Bad Magic number\n");
}
#if !defined(CONFIG_PATI)
start = 0 - size;
- for (i = info->sector_count-1; i > 0; i--) {
- info->protect[i] = 0; /* unprotect this sector */
+
+ /* unprotect sectors used by u-boot */
+ flash_protect(FLAG_PROTECT_CLEAR,
+ start,
+ 0xFFFFFFFF,
+ info);
+
+ /* search start sector */
+ for (i = info->sector_count-1; i > 0; i--)
if (start >= info->start[i])
break;
- }
- /* set-up flash location */
+
/* now erase flash */
printf("Erasing at %lx (sector %d) (start %lx)\n",
start,i,info->start[i]);
#else /* #if !defined(CONFIG_PATI */
start = FIRM_START;
start_sect = -1;
- for (i = 0; i < info->sector_count; i++) {
- if (start < info->start[i]) {
- start_sect = i - 1;
+
+ /* search start sector */
+ for (i = info->sector_count-1; i > 0; i--)
+ if (start >= info->start[i])
break;
- }
- }
- info->protect[i - 1] = 0; /* unprotect this sector */
- for (; i < info->sector_count; i++) {
- if ((start + size) < info->start[i])
+ start_sect = i;
+
+ for (i = info->sector_count-1; i > 0; i--)
+ if ((start + size) >= info->start[i])
break;
- info->protect[i] = 0; /* unprotect this sector */
- }
- i--;
- /* set-up flash location */
+ /* unprotect sectors used by u-boot */
+ flash_protect(FLAG_PROTECT_CLEAR,
+ start,
+ start + size,
+ info);
+
/* now erase flash */
printf ("Erasing at %lx to %lx (sector %d to %d) (%lx to %lx)\n",
start, start + size, start_sect, i,
#elif defined(CONFIG_VCMA9)
start = 0;
- for (i = 0; i <info->sector_count; i++) {
- info->protect[i] = 0; /* unprotect this sector */
+
+ /* search end sector */
+ for (i = 0; i < info->sector_count; i++)
if (size < info->start[i])
break;
- }
- /* set-up flash location */
+
+ flash_protect(FLAG_PROTECT_CLEAR,
+ start,
+ size,
+ info);
+
/* now erase flash */
printf("Erasing at %lx (sector %d) (start %lx)\n",
start,0,info->start[0]);
projects / karo-tx-uboot.git / blobdiff