Add qemu 2.4.0
[kvmfornfv.git] / qemu / roms / u-boot / board / v37 / flash.c
diff --git a/qemu/roms/u-boot/board/v37/flash.c b/qemu/roms/u-boot/board/v37/flash.c
new file mode 100644 (file)
index 0000000..5b34af2
--- /dev/null
@@ -0,0 +1,543 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+/*
+ * Yoo. Jonghoon, IPone, yooth@ipone.co.kr
+ * U-Boot port on RPXlite board
+ *
+ * Some of flash control words are modified. (from 2x16bit device
+ * to 4x8bit device)
+ * RPXLite board I tested has only 4 AM29LV800BB devices. Other devices
+ * are not tested.
+ *
+ * (?) Does an RPXLite board which
+ *     does not use AM29LV800 flash memory exist ?
+ *     I don't know...
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+
+flash_info_t   flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size ( short manu, short dev_id, flash_info_t *info);
+static int write_word (flash_info_t *info, ulong dest, ulong data);
+static void flash_get_offsets (ulong base, flash_info_t *info, int two_chips);
+static void flash_get_id_word( void *ptr,  short *ptr_manuf, short *ptr_dev_id);
+static void flash_get_id_long( void *ptr,  short *ptr_manuf, short *ptr_dev_id);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+       volatile immap_t     *immap  = (immap_t *)CONFIG_SYS_IMMR;
+       volatile memctl8xx_t *memctl = &immap->im_memctl;
+       unsigned long size_b0, size_b1;
+       short manu, dev_id;
+       int i;
+
+       /* Init: no FLASHes known */
+       for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
+               flash_info[i].flash_id = FLASH_UNKNOWN;
+       }
+
+       /* Do sizing to get full correct info */
+
+       flash_get_id_word((void*)CONFIG_SYS_FLASH_BASE0,&manu,&dev_id);
+
+       size_b0 = flash_get_size(manu, dev_id, &flash_info[0]);
+
+       flash_get_offsets (CONFIG_SYS_FLASH_BASE0, &flash_info[0],0);
+
+       memctl->memc_or0 = CONFIG_SYS_OR_TIMING_FLASH | (0 - size_b0);
+
+#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE0
+       /* monitor protection ON by default */
+       flash_protect(FLAG_PROTECT_SET,
+                     CONFIG_SYS_MONITOR_BASE,
+                     CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
+                     &flash_info[0]);
+#endif
+
+       flash_get_id_long((void*)CONFIG_SYS_FLASH_BASE1,&manu,&dev_id);
+
+       size_b1 = 2 * flash_get_size(manu, dev_id, &flash_info[1]);
+
+       flash_get_offsets(CONFIG_SYS_FLASH_BASE1, &flash_info[1],1);
+
+       memctl->memc_or1 = CONFIG_SYS_OR_TIMING_FLASH | (0 - size_b1);
+
+       flash_info[0].size = size_b0;
+       flash_info[1].size = size_b1;
+
+       return (size_b0+size_b1);
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void flash_get_offsets (ulong base, flash_info_t *info, int two_chips)
+{
+       int i, addr_shift;
+       vu_short *addr = (vu_short*)base;
+
+       addr[0x555] = 0x00AA ;
+       addr[0xAAA] = 0x0055 ;
+       addr[0x555] = 0x0090 ;
+
+       addr_shift = (two_chips ? 2 : 1 );
+
+       /* set up sector start address table */
+       if (info->flash_id & FLASH_BTYPE) {
+               /* set sector offsets for bottom boot block type        */
+               info->start[0] = base + (0x00000000<<addr_shift);
+               info->start[1] = base + (0x00002000<<addr_shift);
+               info->start[2] = base + (0x00003000<<addr_shift);
+               info->start[3] = base + (0x00004000<<addr_shift);
+               for (i = 4; i < info->sector_count; i++) {
+                       info->start[i] = base + ((i-3) * (0x00008000<<addr_shift)) ;
+               }
+       } else {
+               /* set sector offsets for top boot block type           */
+               i = info->sector_count - 1;
+               info->start[i--] = base + info->size - (0x00002000<<addr_shift);
+               info->start[i--] = base + info->size - (0x00003000<<addr_shift);
+               info->start[i--] = base + info->size - (0x00004000<<addr_shift);
+               for (; i >= 0; i--) {
+                       info->start[i] = base + i * (0x00008000<<addr_shift);
+               }
+       }
+
+       /* check for protected sectors */
+       for (i = 0; i < info->sector_count; i++) {
+               /* read sector protection at sector address, (A7 .. A0) = 0x02 */
+               /* D0 = 1 if protected */
+               addr = (vu_short *)(info->start[i]);
+               info->protect[i] = addr[1<<addr_shift] & 1 ;
+       }
+
+       addr = (vu_short *)info->start[0];
+       *addr = 0xF0F0; /* reset bank */
+}
+
+/*-----------------------------------------------------------------------
+ */
+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_AMD:     printf ("AMD ");                break;
+       case FLASH_MAN_FUJ:     printf ("FUJITSU ");            break;
+       case FLASH_MAN_TOSH:    printf ("TOSHIBA ");            break;
+       default:                printf ("Unknown Vendor ");     break;
+       }
+
+       switch (info->flash_id & FLASH_TYPEMASK) {
+       case FLASH_AM400B:      printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
+                               break;
+       case FLASH_AM400T:      printf ("AM29LV400T (4 Mbit, top boot sector)\n");
+                               break;
+       case FLASH_AM800B:      printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
+                               break;
+       case FLASH_AM800T:      printf ("AM29LV800T (8 Mbit, top boot sector)\n");
+                               break;
+       case FLASH_AM160B:      printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
+                               break;
+       case FLASH_AM160T:      printf ("AM29LV160T (16 Mbit, top boot sector)\n");
+                               break;
+       case FLASH_AM320B:      printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
+                               break;
+       case FLASH_AM320T:      printf ("AM29LV320T (32 Mbit, top boot sector)\n");
+                               break;
+       default:                printf ("Unknown Chip Type\n");
+                               break;
+       }
+
+       printf ("  Size: %ld MB in %d Sectors\n",
+               info->size >> 20, info->sector_count);
+
+       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");
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+
+/*-----------------------------------------------------------------------
+ */
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+
+static void flash_get_id_word( void *ptr,  short *ptr_manuf, short *ptr_dev_id)
+{
+       vu_short *addr = (vu_short*)ptr;
+
+       addr[0x555] = 0x00AA ;
+       addr[0xAAA] = 0x0055 ;
+       addr[0x555] = 0x0090 ;
+
+       *ptr_manuf  = addr[0];
+       *ptr_dev_id = addr[1];
+
+       addr[0] = 0xf0f0;       /* return to normal */
+}
+
+static void flash_get_id_long( void *ptr,  short *ptr_manuf, short *ptr_dev_id)
+{
+       vu_short *addr = (vu_short*)ptr;
+       vu_short *addr1, *addr2, *addr3;
+
+       addr1 = (vu_short*) ( ((int)ptr) + (0x5555<<2) );
+       addr2 = (vu_short*) ( ((int)ptr) + (0x2AAA<<2) );
+       addr3 = (vu_short*) ( ((int)ptr) + (0x5555<<2) );
+
+       *addr1 = 0xAAAA;
+       *addr2 = 0x5555;
+       *addr3 = 0x9090;
+
+       *ptr_manuf  = addr[0];
+       *ptr_dev_id = addr[2];
+
+       addr[0] = 0xf0f0;       /* return to normal */
+}
+
+static ulong flash_get_size ( short manu, short dev_id, flash_info_t *info)
+{
+       switch (manu) {
+       case ((short)AMD_MANUFACT):
+               info->flash_id = FLASH_MAN_AMD;
+               break;
+       case ((short)FUJ_MANUFACT):
+               info->flash_id = FLASH_MAN_FUJ;
+               break;
+       case ((short)TOSH_MANUFACT):
+               info->flash_id = FLASH_MAN_TOSH;
+               break;
+       default:
+               info->flash_id = FLASH_UNKNOWN;
+               info->sector_count = 0;
+               info->size = 0;
+               return (0);                     /* no or unknown flash  */
+       }
+
+
+       switch (dev_id) {
+       case ((short)TOSH_ID_FVT160):
+               info->flash_id += FLASH_AM160T;
+               info->sector_count = 35;
+               info->size = 0x00200000;
+               break;                          /* => 1 MB              */
+
+       case ((short)TOSH_ID_FVB160):
+               info->flash_id += FLASH_AM160B;
+               info->sector_count = 35;
+               info->size = 0x00200000;
+               break;                          /* => 1 MB              */
+
+       case ((short)AMD_ID_LV400T):
+               info->flash_id += FLASH_AM400T;
+               info->sector_count = 11;
+               info->size = 0x00100000;
+               break;                          /* => 1 MB              */
+
+       case ((short)AMD_ID_LV400B):
+               info->flash_id += FLASH_AM400B;
+               info->sector_count = 11;
+               info->size = 0x00100000;
+               break;                          /* => 1 MB              */
+
+       case ((short)AMD_ID_LV800T):
+               info->flash_id += FLASH_AM800T;
+               info->sector_count = 19;
+               info->size = 0x00200000;
+               break;                          /* => 2 MB              */
+
+       case ((short)AMD_ID_LV800B):
+               info->flash_id += FLASH_AM800B;
+               info->sector_count = 19;
+               info->size = 0x00400000;        /*%%% Size doubled by yooth */
+               break;                          /* => 4 MB              */
+
+       case ((short)AMD_ID_LV160T):
+               info->flash_id += FLASH_AM160T;
+               info->sector_count = 35;
+               info->size = 0x00200000;
+               break;                          /* => 4 MB              */
+
+       case ((short)AMD_ID_LV160B):
+               info->flash_id += FLASH_AM160B;
+               info->sector_count = 35;
+               info->size = 0x00200000;
+               break;                          /* => 4 MB              */
+       default:
+               info->flash_id = FLASH_UNKNOWN;
+               return (0);                     /* => no or unknown flash */
+
+       }
+
+       return(info->size);
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+
+int    flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+       vu_short *addr = (vu_short*)(info->start[0]);
+       int flag, prot, sect, l_sect;
+       ulong start, now, 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;
+       }
+
+       if ((info->flash_id == FLASH_UNKNOWN) ||
+           (info->flash_id > FLASH_AMD_COMP)) {
+               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++;
+               }
+       }
+
+       if (prot) {
+               printf ("- Warning: %d protected sectors will not be erased!\n",
+                       prot);
+       } else {
+               printf ("\n");
+       }
+
+       l_sect = -1;
+
+       /* Disable interrupts which might cause a timeout here */
+       flag = disable_interrupts();
+
+       addr[0x555] = (vu_short)0xAAAAAAAA;
+       addr[0xAAA] = (vu_short)0x55555555;
+       addr[0x555] = (vu_short)0x80808080;
+       addr[0x555] = (vu_short)0xAAAAAAAA;
+       addr[0xAAA] = (vu_short)0x55555555;
+
+       /* Start erase on unprotected sectors */
+       for (sect = s_first; sect<=s_last; sect++) {
+               if (info->protect[sect] == 0) { /* not protected */
+                       addr = (vu_short *)(info->start[sect]) ;
+                       addr[0] = (vu_short)0x30303030 ;
+                       l_sect = sect;
+               }
+       }
+
+       /* re-enable interrupts if necessary */
+       if (flag)
+               enable_interrupts();
+
+       /* wait at least 80us - let's wait 1 ms */
+       udelay (1000);
+
+       /*
+        * We wait for the last triggered sector
+        */
+       if (l_sect < 0)
+               goto DONE;
+
+       start = get_timer (0);
+       last  = start;
+       addr = (vu_short *)(info->start[l_sect]);
+       while ((addr[0] & 0x8080) != 0x8080) {
+               if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
+                       printf ("Timeout\n");
+                       return 1;
+               }
+               /* show that we're waiting */
+               if ((now - last) > 1000) {      /* every second */
+                       putc ('.');
+                       last = now;
+               }
+       }
+
+DONE:
+       /* reset to read mode */
+       addr = (vu_short *)info->start[0];
+       addr[0] = (vu_short)0xF0F0F0F0; /* reset bank */
+
+       printf (" done\n");
+       return 0;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+
+int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+       ulong cp, wp, data;
+       int i, l, 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);
+               }
+               for (; i<4 && cnt>0; ++i) {
+                       data = (data << 8) | *src++;
+                       --cnt;
+                       ++cp;
+               }
+               for (; cnt==0 && i<4; ++i, ++cp) {
+                       data = (data << 8) | (*(uchar *)cp);
+               }
+
+               if ((rc = write_word(info, wp, data)) != 0) {
+                       return (rc);
+               }
+               wp += 4;
+       }
+
+       /*
+        * handle word aligned part
+        */
+       while (cnt >= 4) {
+               data = 0;
+               for (i=0; i<4; ++i) {
+                       data = (data << 8) | *src++;
+               }
+               if ((rc = write_word(info, wp, data)) != 0) {
+                       return (rc);
+               }
+               wp  += 4;
+               cnt -= 4;
+       }
+
+       if (cnt == 0) {
+               return (0);
+       }
+
+       /*
+        * handle unaligned tail bytes
+        */
+       data = 0;
+       for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
+               data = (data << 8) | *src++;
+               --cnt;
+       }
+       for (; i<4; ++i, ++cp) {
+               data = (data << 8) | (*(uchar *)cp);
+       }
+
+       return (write_word(info, wp, data));
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word (flash_info_t *info, ulong dest, ulong data)
+{
+       vu_short *addr = (vu_short *)(info->start[0]);
+       vu_short sdata;
+
+       ulong start;
+       int flag;
+
+       /* Check if Flash is (sufficiently) erased */
+       if ((*((vu_long *)dest) & data) != data) {
+               return (2);
+       }
+
+       /* First write upper 16 bits */
+       sdata = (short)(data>>16);
+
+       /* Disable interrupts which might cause a timeout here */
+       flag = disable_interrupts();
+
+       addr[0x555] = 0xAAAA;
+       addr[0xAAA] = 0x5555;
+       addr[0x555] = 0xA0A0;
+
+       *((vu_short *)dest) = sdata;
+
+       /* re-enable interrupts if necessary */
+       if (flag)
+               enable_interrupts();
+
+       /* data polling for D7 */
+       start = get_timer (0);
+       while ((*((vu_short *)dest) & 0x8080) != (sdata & 0x8080)) {
+               if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
+                       return (1);
+               }
+       }
+
+       /* Now write lower 16 bits */
+       sdata = (short)(data&0xffff);
+
+       /* Disable interrupts which might cause a timeout here */
+       flag = disable_interrupts();
+
+       addr[0x555] = 0xAAAA;
+       addr[0xAAA] = 0x5555;
+       addr[0x555] = 0xA0A0;
+
+       *((vu_short *)dest + 1) = sdata;
+
+       /* re-enable interrupts if necessary */
+       if (flag)
+               enable_interrupts();
+
+       /* data polling for D7 */
+       start = get_timer (0);
+       while ((*((vu_short *)dest + 1) & 0x8080) != (sdata & 0x8080)) {
+               if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
+                       return (1);
+               }
+       }
+       return (0);
+}
+
+/*-----------------------------------------------------------------------
+ */