X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fmtd%2Fcfi_flash.c;h=5494bcffa7c4b247992f8a7e0e997a4b02cda2bf;hb=4eaf172e98d651c0c5856290e5b6fd15744c13f2;hp=5788328ef149c5bb50814ad8101261f11c2a2fb3;hpb=a8708a86344794d7d9a25c71d2fe56b36563a0b5;p=u-boot

diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
index 5788328ef1..5494bcffa7 100644
--- a/drivers/mtd/cfi_flash.c
+++ b/drivers/mtd/cfi_flash.c
@@ -573,7 +573,9 @@ static int flash_status_check (flash_info_t * info, flash_sect_t sector,
 #endif
 
 	/* Wait for command completion */
+#ifdef CONFIG_SYS_LOW_RES_TIMER
 	reset_timer();
+#endif
 	start = get_timer (0);
 	while (flash_is_busy (info, sector)) {
 		if (get_timer (start) > tout) {
@@ -581,6 +583,7 @@ static int flash_status_check (flash_info_t * info, flash_sect_t sector,
 				prompt, info->start[sector],
 				flash_read_long (info, sector, 0));
 			flash_write_cmd (info, sector, 0, info->cmd_reset);
+			udelay(1);
 			return ERR_TIMOUT;
 		}
 		udelay (1);		/* also triggers watchdog */
@@ -628,6 +631,7 @@ static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
 				puts ("Vpp Low Error.\n");
 		}
 		flash_write_cmd (info, sector, 0, info->cmd_reset);
+		udelay(1);
 		break;
 	default:
 		break;
@@ -660,7 +664,9 @@ static int flash_status_poll(flash_info_t *info, void *src, void *dst,
 #endif
 
 	/* Wait for command completion */
+#ifdef CONFIG_SYS_LOW_RES_TIMER
 	reset_timer();
+#endif
 	start = get_timer(0);
 	while (1) {
 		switch (info->portwidth) {
@@ -1202,8 +1208,9 @@ void flash_print_info (flash_info_t * info)
 		info->manufacturer_id);
 	printf (info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X",
 		info->device_id);
-	if (info->device_id == 0x7E) {
-		printf("%04X", info->device_id2);
+	if ((info->device_id & 0xff) == 0x7E) {
+		printf(info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X",
+		info->device_id2);
 	}
 	printf ("\n  Erase timeout: %ld ms, write timeout: %ld ms\n",
 		info->erase_blk_tout,
@@ -1490,6 +1497,7 @@ void flash_read_user_serial (flash_info_t * info, void *buffer, int offset,
 	flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
 	memcpy (dst, src + offset, len);
 	flash_write_cmd (info, 0, 0, info->cmd_reset);
+	udelay(1);
 	flash_unmap(info, 0, FLASH_OFFSET_USER_PROTECTION, src);
 }
 
@@ -1505,6 +1513,7 @@ void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset,
 	flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
 	memcpy (buffer, src + offset, len);
 	flash_write_cmd (info, 0, 0, info->cmd_reset);
+	udelay(1);
 	flash_unmap(info, 0, FLASH_OFFSET_INTEL_PROTECTION, src);
 }
 
@@ -1536,6 +1545,7 @@ static void cfi_reverse_geometry(struct cfi_qry *qry)
 static void cmdset_intel_read_jedec_ids(flash_info_t *info)
 {
 	flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
+	udelay(1);
 	flash_write_cmd(info, 0, 0, FLASH_CMD_READ_ID);
 	udelay(1000); /* some flash are slow to respond */
 	info->manufacturer_id = flash_read_uchar (info,
@@ -1599,11 +1609,20 @@ static void cmdset_amd_read_jedec_ids(flash_info_t *info)
 	case FLASH_CFI_16BIT:
 		info->device_id = flash_read_word (info,
 						FLASH_OFFSET_DEVICE_ID);
+		if ((info->device_id & 0xff) == 0x7E) {
+			/* AMD 3-byte (expanded) device ids */
+			info->device_id2 = flash_read_uchar (info,
+						FLASH_OFFSET_DEVICE_ID2);
+			info->device_id2 <<= 8;
+			info->device_id2 |= flash_read_uchar (info,
+						FLASH_OFFSET_DEVICE_ID3);
+		}
 		break;
 	default:
 		break;
 	}
 	flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
+	udelay(1);
 }
 
 static int cmdset_amd_init(flash_info_t *info, struct cfi_qry *qry)
@@ -1730,6 +1749,7 @@ void __flash_cmd_reset(flash_info_t *info)
 	 * that AMD flash roms ignore the Intel command.
 	 */
 	flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
+	udelay(1);
 	flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
 }
 void flash_cmd_reset(flash_info_t *info)
@@ -1852,11 +1872,16 @@ static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry)
 	if (qry->num_erase_regions > 1) {
 		/* reverse geometry if top boot part */
 		if (info->cfi_version < 0x3131) {
-			/* CFI < 1.1, guess by device id (M29W320{DT,ET} only) */
-			if (info->device_id == 0x22CA ||
-			    info->device_id == 0x2256) {
+			/* CFI < 1.1, guess by device id */
+			if (info->device_id == 0x22CA || /* M29W320DT */
+			    info->device_id == 0x2256 || /* M29W320ET */
+			    info->device_id == 0x22D7) { /* M29W800DT */
 				cfi_reverse_geometry(qry);
 			}
+		} else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
+			/* CFI >= 1.1, deduct from top/bottom flag */
+			/* note: ext_addr is valid since cfi_version > 0 */
+			cfi_reverse_geometry(qry);
 		}
 	}
 }
@@ -2089,6 +2114,14 @@ static void cfi_flash_set_config_reg(u32 base, u16 val)
 
 void flash_protect_default(void)
 {
+#if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST)
+	int i;
+	struct apl_s {
+		ulong start;
+		ulong size;
+	} apl[] = CONFIG_SYS_FLASH_AUTOPROTECT_LIST;
+#endif
+
 	/* Monitor protection ON by default */
 #if (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE) && \
 	(!defined(CONFIG_MONITOR_IS_IN_RAM))
@@ -2116,7 +2149,7 @@ void flash_protect_default(void)
 
 #if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST)
 	for (i = 0; i < (sizeof(apl) / sizeof(struct apl_s)); i++) {
-		debug("autoprotecting from %08x to %08x\n",
+		debug("autoprotecting from %08lx to %08lx\n",
 		      apl[i].start, apl[i].start + apl[i].size - 1);
 		flash_protect(FLAG_PROTECT_SET,
 			       apl[i].start,
@@ -2130,12 +2163,6 @@ unsigned long flash_init (void)
 {
 	unsigned long size = 0;
 	int i;
-#if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST)
-	struct apl_s {
-		ulong start;
-		ulong size;
-	} apl[] = CONFIG_SYS_FLASH_AUTOPROTECT_LIST;
-#endif
 
 #ifdef CONFIG_SYS_FLASH_PROTECTION
 	/* read environment from EEPROM */