--- /dev/null
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ * Modified 4/5/2001
+ * Wait for completion of each sector erase command issued
+ * 4/5/2001
+ * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
+ */
+
+#include <common.h>
+#include <asm/ppc4xx.h>
+#include <asm/processor.h>
+
+flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+#undef DEBUG
+#ifdef DEBUG
+#define DEBUGF(x...) printf(x)
+#else
+#define DEBUGF(x...)
+#endif /* DEBUG */
+
+#define CONFIG_SYS_FLASH_CHAR_SIZE unsigned char
+#define CONFIG_SYS_FLASH_CHAR_ADDR0 (0x0aaa)
+#define CONFIG_SYS_FLASH_CHAR_ADDR1 (0x0555)
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size(vu_long * addr, flash_info_t * info);
+static void flash_get_offsets(ulong base, flash_info_t * info);
+static int write_word(flash_info_t * info, ulong dest, ulong data);
+#ifdef FLASH_BASE1_PRELIM
+static int write_word_1(flash_info_t * info, ulong dest, ulong data);
+static int write_word_2(flash_info_t * info, ulong dest, ulong data);
+static int flash_erase_1(flash_info_t * info, int s_first, int s_last);
+static int flash_erase_2(flash_info_t * info, int s_first, int s_last);
+static ulong flash_get_size_1(vu_long * addr, flash_info_t * info);
+static ulong flash_get_size_2(vu_long * addr, flash_info_t * info);
+#endif
+
+unsigned long flash_init(void)
+{
+ unsigned long size_b0, size_b1=0;
+ int i;
+
+ /* Init: no FLASHes known */
+ for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ }
+
+ /* Static FLASH Bank configuration here - FIXME XXX */
+
+ size_b0 =
+ flash_get_size((vu_long *) FLASH_BASE0_PRELIM, &flash_info[0]);
+
+ if (flash_info[0].flash_id == FLASH_UNKNOWN) {
+ printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+ size_b0, size_b0 << 20);
+ }
+
+ if (size_b0) {
+ /* Setup offsets */
+ flash_get_offsets(FLASH_BASE0_PRELIM, &flash_info[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[0]);
+#ifdef CONFIG_ENV_IS_IN_FLASH
+ (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
+ CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
+ &flash_info[0]);
+ (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
+ CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
+ &flash_info[0]);
+#endif
+ /* Also protect sector containing initial power-up instruction */
+ /* (flash_protect() checks address range - other call ignored) */
+ (void)flash_protect(FLAG_PROTECT_SET,
+ 0xFFFFFFFC, 0xFFFFFFFF, &flash_info[0]);
+
+ flash_info[0].size = size_b0;
+ }
+#ifdef FLASH_BASE1_PRELIM
+ size_b1 =
+ flash_get_size((vu_long *) FLASH_BASE1_PRELIM, &flash_info[1])*2;
+
+ if (flash_info[1].flash_id == FLASH_UNKNOWN) {
+ printf("## Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n",
+ size_b1, size_b1 << 20);
+ }
+
+ if (size_b1) {
+ /* Setup offsets */
+ flash_get_offsets(FLASH_BASE1_PRELIM, &flash_info[1]);
+ flash_info[1].size = size_b1;
+ }
+#endif
+ return (size_b0 + size_b1);
+}
+
+static void flash_get_offsets(ulong base, flash_info_t * info)
+{
+ int i;
+
+ /* set up sector start address table */
+ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+ (info->flash_id == FLASH_AM040)) {
+ for (i = 0; i < info->sector_count; i++)
+ info->start[i] = base + (i * 0x00010000);
+ } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
+ for (i = 0; i < info->sector_count; i++) {
+ info->start[i] = base + (i * 0x00010000*2);
+ }
+ } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
+ for (i = 0; i < info->sector_count; i++) {
+ info->start[i] = base + (i * 0x00020000*2);
+ }
+ } else {
+ if (info->flash_id & FLASH_BTYPE) {
+ /* set sector offsets for bottom boot block type */
+ info->start[0] = base + 0x00000000;
+ info->start[1] = base + 0x00004000;
+ info->start[2] = base + 0x00006000;
+ info->start[3] = base + 0x00008000;
+ for (i = 4; i < info->sector_count; i++) {
+ info->start[i] =
+ base + (i * 0x00010000) - 0x00030000;
+ }
+ } else {
+ /* set sector offsets for top boot block type */
+ i = info->sector_count - 1;
+ info->start[i--] = base + info->size - 0x00004000;
+ info->start[i--] = base + info->size - 0x00006000;
+ info->start[i--] = base + info->size - 0x00008000;
+ for (; i >= 0; i--) {
+ info->start[i] = base + i * 0x00010000;
+ }
+ }
+ }
+}
+
+
+void flash_print_info(flash_info_t * info)
+{
+ int i;
+ int k;
+ int size;
+ int 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_STM:
+ printf("STM ");
+ break;
+ case FLASH_MAN_FUJ:
+ printf("FUJITSU ");
+ break;
+ case FLASH_MAN_SST:
+ printf("SST ");
+ break;
+ default:
+ printf("Unknown Vendor ");
+ break;
+ }
+
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_AM040:
+ printf("AM29F040 (512 Kbit, uniform sector size)\n");
+ break;
+ 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_AMD016:
+ printf("AM29F016D (16 Mbit, uniform sector size)\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;
+ case FLASH_AM033C:
+ printf("AM29LV033C (32 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AMLV128U:
+ printf("AM29LV128U (128 Mbit * 2, top boot sector)\n");
+ break;
+ case FLASH_SST800A:
+ printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
+ break;
+ case FLASH_SST160A:
+ printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
+ break;
+ case FLASH_STMW320DT:
+ printf ("M29W320DT (32 M, top sector)\n");
+ break;
+ case FLASH_S29GL128N:
+ printf ("S29GL128N (256 Mbit, uniform sector size)\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 FLASH_BASE1_PRELIM
+static ulong flash_get_size(vu_long * addr, flash_info_t * info)
+{
+ if ((ulong)addr == FLASH_BASE1_PRELIM) {
+ return flash_get_size_2(addr, info);
+ } else {
+ return flash_get_size_1(addr, info);
+ }
+}
+
+static ulong flash_get_size_1(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("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;
+ case (CONFIG_SYS_FLASH_WORD_SIZE) FUJ_MANUFACT:
+ info->flash_id = FLASH_MAN_FUJ;
+ break;
+ case (CONFIG_SYS_FLASH_WORD_SIZE) SST_MANUFACT:
+ info->flash_id = FLASH_MAN_SST;
+ break;
+ case (CONFIG_SYS_FLASH_WORD_SIZE) STM_MANUFACT:
+ info->flash_id = FLASH_MAN_STM;
+ 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 (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV040B:
+ info->flash_id += FLASH_AM040;
+ info->sector_count = 8;
+ info->size = 0x0080000; /* => 512 ko */
+ break;
+
+ case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_F040B:
+ info->flash_id += FLASH_AM040;
+ info->sector_count = 8;
+ info->size = 0x0080000; /* => 512 ko */
+ break;
+
+ case (CONFIG_SYS_FLASH_WORD_SIZE) STM_ID_M29W040B:
+ info->flash_id += FLASH_AM040;
+ info->sector_count = 8;
+ info->size = 0x0080000; /* => 512 ko */
+ break;
+
+ case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_F016D:
+ info->flash_id += FLASH_AMD016;
+ info->sector_count = 32;
+ info->size = 0x00200000;
+ break; /* => 2 MB */
+
+ case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV033C:
+ info->flash_id += FLASH_AMDLV033C;
+ info->sector_count = 64;
+ info->size = 0x00400000;
+ break; /* => 4 MB */
+
+ case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV400T:
+ info->flash_id += FLASH_AM400T;
+ info->sector_count = 11;
+ info->size = 0x00080000;
+ break; /* => 0.5 MB */
+
+ case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV400B:
+ info->flash_id += FLASH_AM400B;
+ info->sector_count = 11;
+ info->size = 0x00080000;
+ break; /* => 0.5 MB */
+
+ case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV800T:
+ info->flash_id += FLASH_AM800T;
+ info->sector_count = 19;
+ info->size = 0x00100000;
+ break; /* => 1 MB */
+
+ case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV800B:
+ info->flash_id += FLASH_AM800B;
+ info->sector_count = 19;
+ info->size = 0x00100000;
+ break; /* => 1 MB */
+
+ case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV160T:
+ info->flash_id += FLASH_AM160T;
+ info->sector_count = 35;
+ info->size = 0x00200000;
+ break; /* => 2 MB */
+
+ case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV160B:
+ info->flash_id += FLASH_AM160B;
+ info->sector_count = 35;
+ info->size = 0x00200000;
+ break; /* => 2 MB */
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ return 0; /* => no or unknown flash */
+ }
+
+ /* set up sector start address table */
+ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
+ for (i = 0; i < info->sector_count; i++)
+ info->start[i] = base + (i * 0x00010000);
+ }
+ else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
+ for (i = 0; i < info->sector_count; i++)
+ info->start[i] = base + (i * 0x00010000 * 2);
+ } else {
+ if (info->flash_id & FLASH_BTYPE) {
+ /* set sector offsets for bottom boot block type */
+ info->start[0] = base + 0x00000000;
+ info->start[1] = base + 0x00004000;
+ info->start[2] = base + 0x00006000;
+ info->start[3] = base + 0x00008000;
+ for (i = 4; i < info->sector_count; i++) {
+ info->start[i] =
+ base + (i * 0x00010000) - 0x00030000;
+ }
+ } else {
+ /* set sector offsets for top boot block type */
+ i = info->sector_count - 1;
+ info->start[i--] = base + info->size - 0x00004000;
+ info->start[i--] = base + info->size - 0x00006000;
+ info->start[i--] = base + info->size - 0x00008000;
+ 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]);
+
+ /* For AMD29033C flash we need to resend the command of *
+ * reading flash protection for upper 8 Mb of flash */
+ if (i == 32) {
+ addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
+ addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
+ addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
+ }
+
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
+ info->protect[i] = 0;
+ else
+ 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_1(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 FLASH_BASE1_PRELIM
+int flash_erase(flash_info_t * info, int s_first, int s_last)
+{
+ if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
+ return flash_erase_2(info, s_first, s_last);
+ } else {
+ return flash_erase_1(info, s_first, s_last);
+ }
+}
+
+static int flash_erase_1(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;
+ int i;
+
+ 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!\n",
+ prot);
+ } else {
+ 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]);
+
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
+ 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) 0x00500050; /* block erase */
+ for (i = 0; i < 50; i++)
+ udelay(1000); /* wait 1 ms */
+ } else {
+ 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_1(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 FLASH_BASE1_PRELIM
+static int write_word(flash_info_t * info, ulong dest, ulong data)
+{
+ if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
+ return write_word_2(info, dest, data);
+ } else {
+ return write_word_1(info, dest, data);
+ }
+}
+
+static int write_word_1(flash_info_t * info, ulong dest, ulong data)
+#else
+static int write_word(flash_info_t * info, ulong dest, ulong data)
+#endif
+{
+ ulong *data_ptr = &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;
+ volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)data_ptr;
+ ulong start;
+ int i;
+
+ /* 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++) {
+ int flag;
+
+ /* 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 FLASH_BASE1_PRELIM
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
+{
+ short i;
+ CONFIG_SYS_FLASH_CHAR_SIZE value;
+ ulong base = (ulong) addr;
+ volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
+
+ DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
+
+ /* Write auto select command: read Manufacturer ID */
+ addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
+ addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
+ addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
+ udelay(1000);
+
+ value = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0];
+ DEBUGF("FLASH MANUFACT: %x\n", value);
+
+ switch (value) {
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_MANUFACT:
+ info->flash_id = FLASH_MAN_AMD;
+ break;
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) FUJ_MANUFACT:
+ info->flash_id = FLASH_MAN_FUJ;
+ break;
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) SST_MANUFACT:
+ info->flash_id = FLASH_MAN_SST;
+ break;
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) STM_MANUFACT:
+ info->flash_id = FLASH_MAN_STM;
+ break;
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ return 0; /* no or unknown flash */
+ }
+
+ value = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[2]; /* device ID */
+ DEBUGF("\nFLASH DEVICEID: %x\n", value);
+
+ switch (value) {
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV040B:
+ info->flash_id += FLASH_AM040;
+ info->sector_count = 8;
+ info->size = 0x0080000; /* => 512 ko */
+ break;
+
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_F040B:
+ info->flash_id += FLASH_AM040;
+ info->sector_count = 8;
+ info->size = 0x0080000; /* => 512 ko */
+ break;
+
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) STM_ID_M29W040B:
+ info->flash_id += FLASH_AM040;
+ info->sector_count = 8;
+ info->size = 0x0080000; /* => 512 ko */
+ break;
+
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_F016D:
+ info->flash_id += FLASH_AMD016;
+ info->sector_count = 32;
+ info->size = 0x00200000;
+ break; /* => 2 MB */
+
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV033C:
+ info->flash_id += FLASH_AMDLV033C;
+ info->sector_count = 64;
+ info->size = 0x00400000;
+ break; /* => 4 MB */
+
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV400T:
+ info->flash_id += FLASH_AM400T;
+ info->sector_count = 11;
+ info->size = 0x00080000;
+ break; /* => 0.5 MB */
+
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV400B:
+ info->flash_id += FLASH_AM400B;
+ info->sector_count = 11;
+ info->size = 0x00080000;
+ break; /* => 0.5 MB */
+
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV800T:
+ info->flash_id += FLASH_AM800T;
+ info->sector_count = 19;
+ info->size = 0x00100000;
+ break; /* => 1 MB */
+
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV800B:
+ info->flash_id += FLASH_AM800B;
+ info->sector_count = 19;
+ info->size = 0x00100000;
+ break; /* => 1 MB */
+
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV160T:
+ info->flash_id += FLASH_AM160T;
+ info->sector_count = 35;
+ info->size = 0x00200000;
+ break; /* => 2 MB */
+
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV160B:
+ info->flash_id += FLASH_AM160B;
+ info->sector_count = 35;
+ info->size = 0x00200000;
+ break; /* => 2 MB */
+ case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_MIRROR:
+ if ((CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1c] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_LV128U_2
+ && (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1e] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_LV128U_3) {
+ info->flash_id += FLASH_AMLV128U;
+ info->sector_count = 256;
+ info->size = 0x01000000;
+ } else if ((CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1c] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_GL128N_2
+ && (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1e] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_GL128N_3 ) {
+ info->flash_id += FLASH_S29GL128N;
+ info->sector_count = 128;
+ info->size = 0x01000000;
+ }
+ else
+ info->flash_id = FLASH_UNKNOWN;
+ break; /* => 2 MB */
+
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ return 0; /* => no or unknown flash */
+ }
+
+ /* set up sector start address table */
+ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
+ for (i = 0; i < info->sector_count; i++)
+ info->start[i] = base + (i * 0x00010000);
+ } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
+ for (i = 0; i < info->sector_count; i++)
+ info->start[i] = base + (i * 0x00010000);
+ } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
+ for (i = 0; i < info->sector_count; i++)
+ info->start[i] = base + (i * 0x00020000);
+ } else {
+ if (info->flash_id & FLASH_BTYPE) {
+ /* set sector offsets for bottom boot block type */
+ info->start[0] = base + 0x00000000;
+ info->start[1] = base + 0x00004000;
+ info->start[2] = base + 0x00006000;
+ info->start[3] = base + 0x00008000;
+ for (i = 4; i < info->sector_count; i++) {
+ info->start[i] =
+ base + (i * 0x00010000) - 0x00030000;
+ }
+ } else {
+ /* set sector offsets for top boot block type */
+ i = info->sector_count - 1;
+ info->start[i--] = base + info->size - 0x00004000;
+ info->start[i--] = base + info->size - 0x00006000;
+ info->start[i--] = base + info->size - 0x00008000;
+ 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]);
+
+ /* For AMD29033C flash we need to resend the command of *
+ * reading flash protection for upper 8 Mb of flash */
+ if (i == 32) {
+ addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
+ addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
+ addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
+ }
+
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
+ info->protect[i] = 0;
+ else
+ info->protect[i] = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[4] & 1;
+ }
+
+ /* issue bank reset to return to read mode */
+ addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF0F0F0F0;
+ return info->size;
+}
+
+static int wait_for_DQ7_2(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 (((CONFIG_SYS_FLASH_WORD_SIZE)addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) !=
+ (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) {
+ 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_2(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;
+ int i;
+
+ 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!\n",
+ prot);
+ } else {
+ 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]);
+
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
+ addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
+ addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
+ addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080;
+ addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
+ addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
+ addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x50505050; /* block erase */
+ for (i = 0; i < 50; i++)
+ udelay(1000); /* wait 1 ms */
+ } else {
+ addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
+ addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
+ addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080;
+ addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
+ addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
+ addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x30303030; /* 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_2(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) 0xF0F0F0F0; /* reset bank */
+
+ printf(" done\n");
+ return 0;
+}
+
+static int write_word_2(flash_info_t * info, ulong dest, ulong data)
+{
+ ulong *data_ptr = &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;
+ volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)data_ptr;
+ ulong start;
+ int i;
+
+ /* 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++) {
+ int flag;
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
+ addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
+ addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xA0A0A0A0;
+
+ 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) 0x80808080) !=
+ (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080)) {
+
+ if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
+ return 1;
+ }
+ }
+ }
+
+ return 0;
+}
+
+#endif /* FLASH_BASE1_PRELIM */
Code Review / kvmfornfv.git / blobdiff