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Diffstat (limited to 'board/tqc/tqm5200/cam5200_flash.c')
-rw-r--r--board/tqc/tqm5200/cam5200_flash.c768
1 files changed, 0 insertions, 768 deletions
diff --git a/board/tqc/tqm5200/cam5200_flash.c b/board/tqc/tqm5200/cam5200_flash.c
deleted file mode 100644
index c3ae5c0..0000000
--- a/board/tqc/tqm5200/cam5200_flash.c
+++ /dev/null
@@ -1,768 +0,0 @@
-/*
- * (C) Copyright 2006
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <mpc5xxx.h>
-#include <asm/processor.h>
-
-#if defined(CONFIG_CAM5200) && defined(CONFIG_CAM5200_NIOSFLASH)
-
-#if 0
-#define DEBUGF(x...) printf(x)
-#else
-#define DEBUGF(x...)
-#endif
-
-#define swap16(x) __swab16(x)
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*
- * CAM5200 is a TQM5200B based board. Additionally it also features
- * a NIOS cpu. The NIOS CPU peripherals are accessible through MPC5xxx
- * Local Bus on CS5. This includes 32 bit wide RAM and SRAM as well as
- * 16 bit wide flash device. Big Endian order on a 32 bit CS5 makes
- * access to flash chip slightly more complicated as additional byte
- * swapping is necessary within each 16 bit wide flash 'word'.
- *
- * This driver's task is to handle both flash devices: 32 bit TQM5200B
- * flash chip and 16 bit NIOS cpu flash chip. In the below
- * flash_addr_table table we use least significant address bit to mark
- * 16 bit flash bank and two sets of routines *_32 and *_16 to handle
- * specifics of both flashes.
- */
-static unsigned long flash_addr_table[][CONFIG_SYS_MAX_FLASH_BANKS] = {
- {CONFIG_SYS_BOOTCS_START, CONFIG_SYS_CS5_START | 1}
-};
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static int write_word(flash_info_t * info, ulong dest, ulong data);
-#ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
-static int write_word_32(flash_info_t * info, ulong dest, ulong data);
-static int write_word_16(flash_info_t * info, ulong dest, ulong data);
-static int flash_erase_32(flash_info_t * info, int s_first, int s_last);
-static int flash_erase_16(flash_info_t * info, int s_first, int s_last);
-static ulong flash_get_size_32(vu_long * addr, flash_info_t * info);
-static ulong flash_get_size_16(vu_long * addr, flash_info_t * info);
-#endif
-
-void flash_print_info(flash_info_t * info)
-{
- int i, k;
- int size, erased;
- volatile unsigned long *flash;
-
- 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;
- default:
- printf("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_S29GL128N:
- printf ("S29GL128N (256 Mbit, uniform sector size)\n");
- break;
- case FLASH_AM320B:
- printf ("29LV320B (32 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM320T:
- printf ("29LV320T (32 Mbit, top boot sect)\n");
- break;
- default:
- printf("Unknown Chip Type\n");
- break;
- }
-
- printf(" Size: %ld KB in %d Sectors\n",
- info->size >> 10, info->sector_count);
-
- printf(" Sector Start Addresses:");
- for (i = 0; i < info->sector_count; ++i) {
- /*
- * Check if whole sector is erased
- */
- if (i != (info->sector_count - 1))
- size = info->start[i + 1] - info->start[i];
- else
- size = info->start[0] + info->size - info->start[i];
-
- erased = 1;
- flash = (volatile unsigned long *)info->start[i];
- size = size >> 2; /* divide by 4 for longword access */
-
- for (k = 0; k < size; k++) {
- if (*flash++ != 0xffffffff) {
- erased = 0;
- break;
- }
- }
-
- if ((i % 5) == 0)
- printf("\n ");
-
- printf(" %08lX%s%s", info->start[i],
- erased ? " E" : " ",
- info->protect[i] ? "RO " : " ");
- }
- printf("\n");
- return;
-}
-
-
-/*
- * The following code cannot be run from FLASH!
- */
-#ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
-static ulong flash_get_size(vu_long * addr, flash_info_t * info)
-{
-
- DEBUGF("get_size: FLASH ADDR %08lx\n", addr);
-
- /* bit 0 used for big flash marking */
- if ((ulong)addr & 0x1)
- return flash_get_size_16((vu_long *)((ulong)addr & 0xfffffffe), info);
- else
- return flash_get_size_32(addr, info);
-}
-
-static ulong flash_get_size_32(vu_long * addr, flash_info_t * info)
-#else
-static ulong flash_get_size(vu_long * addr, flash_info_t * info)
-#endif
-{
- short i;
- CONFIG_SYS_FLASH_WORD_SIZE value;
- ulong base = (ulong) addr;
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
-
- DEBUGF("get_size32: FLASH ADDR: %08x\n", (unsigned)addr);
-
- /* Write auto select command: read Manufacturer ID */
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
- addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00900090;
- udelay(1000);
-
- value = addr2[0];
- DEBUGF("FLASH MANUFACT: %x\n", value);
-
- switch (value) {
- case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT:
- info->flash_id = FLASH_MAN_AMD;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
- value = addr2[1]; /* device ID */
- DEBUGF("\nFLASH DEVICEID: %x\n", value);
-
- switch (value) {
- case AMD_ID_MIRROR:
- DEBUGF("Mirror Bit flash: addr[14] = %08lX addr[15] = %08lX\n",
- addr[14], addr[15]);
- switch(addr[14]) {
- case AMD_ID_GL128N_2:
- if (addr[15] != AMD_ID_GL128N_3) {
- DEBUGF("Chip: S29GL128N -> unknown\n");
- info->flash_id = FLASH_UNKNOWN;
- } else {
- DEBUGF("Chip: S29GL128N\n");
- info->flash_id += FLASH_S29GL128N;
- info->sector_count = 128;
- info->size = 0x02000000;
- }
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- return(0);
- }
- break;
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
- }
-
- /* set up sector start address table */
- for (i = 0; i < info->sector_count; i++)
- info->start[i] = base + (i * 0x00040000);
-
- /* 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 */
- addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
-
- info->protect[i] = addr2[2] & 1;
- }
-
- /* issue bank reset to return to read mode */
- addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0;
-
- return (info->size);
-}
-
-static int wait_for_DQ7_32(flash_info_t * info, int sect)
-{
- ulong start, now, last;
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
- (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
-
- start = get_timer(0);
- last = start;
- while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
- (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) {
- 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;
- }
- }
- return 0;
-}
-
-#ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
-int flash_erase(flash_info_t * info, int s_first, int s_last)
-{
- if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) {
- return flash_erase_16(info, s_first, s_last);
- } else {
- return flash_erase_32(info, s_first, s_last);
- }
-}
-
-static int flash_erase_32(flash_info_t * info, int s_first, int s_last)
-#else
-int flash_erase(flash_info_t * info, int s_first, int s_last)
-#endif
-{
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
- int flag, prot, sect;
-
- 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) {
- printf("Can't erase unknown flash type - aborted\n");
- 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!", prot);
-
- printf("\n");
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
-
- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
- addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
- addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
- addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
-
- /*
- * Wait for each sector to complete, it's more
- * reliable. According to AMD Spec, you must
- * issue all erase commands within a specified
- * timeout. This has been seen to fail, especially
- * if printf()s are included (for debug)!!
- */
- wait_for_DQ7_32(info, sect);
- }
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay(1000);
-
- /* reset to read mode */
- addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
- addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0; /* 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));
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-#ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
-static int write_word(flash_info_t * info, ulong dest, ulong data)
-{
- if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) {
- return write_word_16(info, dest, data);
- } else {
- return write_word_32(info, dest, data);
- }
-}
-
-static int write_word_32(flash_info_t * info, ulong dest, ulong data)
-#else
-static int write_word(flash_info_t * info, ulong dest, ulong data)
-#endif
-{
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
- volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *) dest;
- ulong *datap = &data;
- volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 =
- (volatile CONFIG_SYS_FLASH_WORD_SIZE *)datap;
- ulong start;
- int i, flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_long *)dest) & data) != data)
- return (2);
-
- for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
- addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00A000A0;
-
- dest2[i] = data2[i];
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer(0);
- while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
- (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080)) {
-
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
- return (1);
- }
- }
-
- return (0);
-}
-
-#ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
-
-#undef CONFIG_SYS_FLASH_WORD_SIZE
-#define CONFIG_SYS_FLASH_WORD_SIZE unsigned short
-
-/*
- * The following code cannot be run from FLASH!
- */
-static ulong flash_get_size_16(vu_long * addr, flash_info_t * info)
-{
- short i;
- CONFIG_SYS_FLASH_WORD_SIZE value;
- ulong base = (ulong) addr;
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
-
- DEBUGF("get_size16: FLASH ADDR: %08x\n", (unsigned)addr);
-
- /* issue bank reset to return to read mode */
- addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF000F000;
-
- /* Write auto select command: read Manufacturer ID */
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAA00AA00;
- addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55005500;
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90009000;
- udelay(1000);
-
- value = swap16(addr2[0]);
- DEBUGF("FLASH MANUFACT: %x\n", value);
-
- switch (value) {
- case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT:
- info->flash_id = FLASH_MAN_AMD;
- break;
- case (CONFIG_SYS_FLASH_WORD_SIZE) FUJ_MANUFACT:
- info->flash_id = FLASH_MAN_FUJ;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
- value = swap16(addr2[1]); /* device ID */
- DEBUGF("\nFLASH DEVICEID: %x\n", value);
-
- switch (value) {
- case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV320B:
- info->flash_id += FLASH_AM320B;
- info->sector_count = 71;
- info->size = 0x00400000;
- break; /* => 4 MB */
- case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV320T:
- info->flash_id += FLASH_AM320T;
- info->sector_count = 71;
- info->size = 0x00400000;
- break; /* => 4 MB */
- default:
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
- }
-
- if (info->flash_id & FLASH_BTYPE) {
- /* set sector offsets for bottom boot block type */
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00002000;
- info->start[2] = base + 0x00004000;
- info->start[3] = base + 0x00006000;
- info->start[4] = base + 0x00008000;
- info->start[5] = base + 0x0000a000;
- info->start[6] = base + 0x0000c000;
- info->start[7] = base + 0x0000e000;
-
- for (i = 8; i < info->sector_count; i++)
- info->start[i] = base + (i * 0x00010000) - 0x00070000;
- } else {
- /* set sector offsets for top boot block type */
- i = info->sector_count - 1;
- info->start[i--] = base + info->size - 0x00002000;
- info->start[i--] = base + info->size - 0x00004000;
- info->start[i--] = base + info->size - 0x00006000;
- info->start[i--] = base + info->size - 0x00008000;
- info->start[i--] = base + info->size - 0x0000a000;
- info->start[i--] = base + info->size - 0x0000c000;
- info->start[i--] = base + info->size - 0x0000e000;
-
- for (; i >= 0; i--)
- info->start[i] = base + i * 0x00010000;
- }
-
- /* 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 */
- addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
-
- info->protect[i] = addr2[2] & 1;
- }
-
- /* issue bank reset to return to read mode */
- addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF000F000;
-
- return (info->size);
-}
-
-static int wait_for_DQ7_16(flash_info_t * info, int sect)
-{
- ulong start, now, last;
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
- (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
-
- start = get_timer(0);
- last = start;
- while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80008000) !=
- (CONFIG_SYS_FLASH_WORD_SIZE) 0x80008000) {
- 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;
- }
- }
- return 0;
-}
-
-static int flash_erase_16(flash_info_t * info, int s_first, int s_last)
-{
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
- int flag, prot, sect;
-
- 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) {
- printf("Can't erase unknown flash type - aborted\n");
- 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!", prot);
-
- printf("\n");
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
-
- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAA00AA00;
- addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55005500;
- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x80008000;
- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAA00AA00;
- addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55005500;
- addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x30003000; /* sector erase */
-
- /*
- * Wait for each sector to complete, it's more
- * reliable. According to AMD Spec, you must
- * issue all erase commands within a specified
- * timeout. This has been seen to fail, especially
- * if printf()s are included (for debug)!!
- */
- wait_for_DQ7_16(info, sect);
- }
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay(1000);
-
- /* reset to read mode */
- addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
- addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF000F000; /* reset bank */
-
- printf(" done\n");
- return 0;
-}
-
-static int write_word_16(flash_info_t * info, ulong dest, ulong data)
-{
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
- volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *) dest;
- ulong *datap = &data;
- volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 =
- (volatile CONFIG_SYS_FLASH_WORD_SIZE *)datap;
- ulong start;
- int i;
-
- /* Check if Flash is (sufficiently) erased */
- for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
- if ((dest2[i] & swap16(data2[i])) != swap16(data2[i]))
- return (2);
- }
-
- for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
- int flag;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAA00AA00;
- addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55005500;
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xA000A000;
-
- dest2[i] = swap16(data2[i]);
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer(0);
- while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80008000) !=
- (swap16(data2[i]) & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80008000)) {
-
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
- }
-
- return (0);
-}
-#endif /* CONFIG_SYS_FLASH_2ND_16BIT_DEV */
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size(vu_long * addr, flash_info_t * info);
-static int write_word(flash_info_t * info, ulong dest, ulong data);
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init(void)
-{
- unsigned long total_b = 0;
- unsigned long size_b[CONFIG_SYS_MAX_FLASH_BANKS];
- unsigned short index = 0;
- int i;
-
- DEBUGF("\n");
- DEBUGF("FLASH: Index: %d\n", index);
-
- /* Init: no FLASHes known */
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- flash_info[i].sector_count = -1;
- flash_info[i].size = 0;
-
- /* check whether the address is 0 */
- if (flash_addr_table[index][i] == 0)
- continue;
-
- /* call flash_get_size() to initialize sector address */
- size_b[i] = flash_get_size((vu_long *) flash_addr_table[index][i],
- &flash_info[i]);
-
- flash_info[i].size = size_b[i];
-
- if (flash_info[i].flash_id == FLASH_UNKNOWN) {
- printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
- i+1, size_b[i], size_b[i] << 20);
- flash_info[i].sector_count = -1;
- flash_info[i].size = 0;
- }
-
- /* Monitor protection ON by default */
- (void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
- &flash_info[i]);
-#if defined(CONFIG_ENV_IS_IN_FLASH)
- (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
- &flash_info[i]);
-#if defined(CONFIG_ENV_ADDR_REDUND)
- (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
- CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
- &flash_info[i]);
-#endif
-#endif
- total_b += flash_info[i].size;
- }
-
- return total_b;
-}
-#endif /* if defined(CONFIG_CAM5200) && defined(CONFIG_CAM5200_NIOSFLASH) */
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