Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff
[linux-2.6.git] / drivers / scsi / qla2xxx / qla_sup.c
index 32583bb..8b0121d 100644 (file)
@@ -1,22 +1,9 @@
-/******************************************************************************
- *                  QLOGIC LINUX SOFTWARE
- *
- * QLogic ISP2x00 device driver for Linux 2.6.x
- * Copyright (C) 2003-2004 QLogic Corporation
- * (www.qlogic.com)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+/*
+ * QLogic Fibre Channel HBA Driver
+ * Copyright (c)  2003-2005 QLogic Corporation
  *
- ******************************************************************************/
-
+ * See LICENSE.qla2xxx for copyright and licensing details.
+ */
 #include "qla_def.h"
 
 #include <linux/delay.h>
@@ -31,14 +18,14 @@ static void qla2x00_nv_write(scsi_qla_host_t *, uint16_t);
  */
 
 /**
- * qla2x00_lock_nvram_access() - 
+ * qla2x00_lock_nvram_access() -
  * @ha: HA context
  */
 void
 qla2x00_lock_nvram_access(scsi_qla_host_t *ha)
 {
        uint16_t data;
-       device_reg_t __iomem *reg = ha->iobase;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 
        if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) {
                data = RD_REG_WORD(&reg->nvram);
@@ -64,13 +51,13 @@ qla2x00_lock_nvram_access(scsi_qla_host_t *ha)
 }
 
 /**
- * qla2x00_unlock_nvram_access() - 
+ * qla2x00_unlock_nvram_access() -
  * @ha: HA context
  */
 void
 qla2x00_unlock_nvram_access(scsi_qla_host_t *ha)
 {
-       device_reg_t __iomem *reg = ha->iobase;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 
        if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) {
                WRT_REG_WORD(&reg->u.isp2300.host_semaphore, 0);
@@ -78,56 +65,6 @@ qla2x00_unlock_nvram_access(scsi_qla_host_t *ha)
        }
 }
 
-/**
- * qla2x00_release_nvram_protection() - 
- * @ha: HA context
- */
-void
-qla2x00_release_nvram_protection(scsi_qla_host_t *ha)
-{
-       device_reg_t __iomem *reg;
-       uint32_t word;
-
-       reg = ha->iobase;
-
-       /* Release NVRAM write protection. */
-       if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
-               /* Write enable. */
-               qla2x00_nv_write(ha, NVR_DATA_OUT);
-               qla2x00_nv_write(ha, 0);
-               qla2x00_nv_write(ha, 0);
-               for (word = 0; word < 8; word++)
-                       qla2x00_nv_write(ha, NVR_DATA_OUT);
-
-               qla2x00_nv_deselect(ha);
-
-               /* Enable protection register. */
-               qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
-               qla2x00_nv_write(ha, NVR_PR_ENABLE);
-               qla2x00_nv_write(ha, NVR_PR_ENABLE);
-               for (word = 0; word < 8; word++)
-                       qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
-
-               qla2x00_nv_deselect(ha);
-
-               /* Clear protection register (ffff is cleared). */
-               qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
-               qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
-               qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
-               for (word = 0; word < 8; word++)
-                       qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
-
-               qla2x00_nv_deselect(ha);
-
-               /* Wait for NVRAM to become ready. */
-               WRT_REG_WORD(&reg->nvram, NVR_SELECT);
-               do {
-                       NVRAM_DELAY();
-                       word = RD_REG_WORD(&reg->nvram);
-               } while ((word & NVR_DATA_IN) == 0);
-       }
-}
-
 /**
  * qla2x00_get_nvram_word() - Calculates word position in NVRAM and calls the
  *     request routine to get the word from NVRAM.
@@ -161,7 +98,60 @@ qla2x00_write_nvram_word(scsi_qla_host_t *ha, uint32_t addr, uint16_t data)
        int count;
        uint16_t word;
        uint32_t nv_cmd;
-       device_reg_t __iomem *reg = ha->iobase;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       qla2x00_nv_write(ha, NVR_DATA_OUT);
+       qla2x00_nv_write(ha, 0);
+       qla2x00_nv_write(ha, 0);
+
+       for (word = 0; word < 8; word++)
+               qla2x00_nv_write(ha, NVR_DATA_OUT);
+
+       qla2x00_nv_deselect(ha);
+
+       /* Write data */
+       nv_cmd = (addr << 16) | NV_WRITE_OP;
+       nv_cmd |= data;
+       nv_cmd <<= 5;
+       for (count = 0; count < 27; count++) {
+               if (nv_cmd & BIT_31)
+                       qla2x00_nv_write(ha, NVR_DATA_OUT);
+               else
+                       qla2x00_nv_write(ha, 0);
+
+               nv_cmd <<= 1;
+       }
+
+       qla2x00_nv_deselect(ha);
+
+       /* Wait for NVRAM to become ready */
+       WRT_REG_WORD(&reg->nvram, NVR_SELECT);
+       RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
+       do {
+               NVRAM_DELAY();
+               word = RD_REG_WORD(&reg->nvram);
+       } while ((word & NVR_DATA_IN) == 0);
+
+       qla2x00_nv_deselect(ha);
+
+       /* Disable writes */
+       qla2x00_nv_write(ha, NVR_DATA_OUT);
+       for (count = 0; count < 10; count++)
+               qla2x00_nv_write(ha, 0);
+
+       qla2x00_nv_deselect(ha);
+}
+
+static int
+qla2x00_write_nvram_word_tmo(scsi_qla_host_t *ha, uint32_t addr, uint16_t data,
+    uint32_t tmo)
+{
+       int ret, count;
+       uint16_t word;
+       uint32_t nv_cmd;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       ret = QLA_SUCCESS;
 
        qla2x00_nv_write(ha, NVR_DATA_OUT);
        qla2x00_nv_write(ha, 0);
@@ -189,9 +179,14 @@ qla2x00_write_nvram_word(scsi_qla_host_t *ha, uint32_t addr, uint16_t data)
 
        /* Wait for NVRAM to become ready */
        WRT_REG_WORD(&reg->nvram, NVR_SELECT);
+       RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
        do {
                NVRAM_DELAY();
                word = RD_REG_WORD(&reg->nvram);
+               if (!--tmo) {
+                       ret = QLA_FUNCTION_FAILED;
+                       break;
+               }
        } while ((word & NVR_DATA_IN) == 0);
 
        qla2x00_nv_deselect(ha);
@@ -202,6 +197,8 @@ qla2x00_write_nvram_word(scsi_qla_host_t *ha, uint32_t addr, uint16_t data)
                qla2x00_nv_write(ha, 0);
 
        qla2x00_nv_deselect(ha);
+
+       return ret;
 }
 
 /**
@@ -223,7 +220,7 @@ static uint16_t
 qla2x00_nvram_request(scsi_qla_host_t *ha, uint32_t nv_cmd)
 {
        uint8_t         cnt;
-       device_reg_t __iomem *reg = ha->iobase;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
        uint16_t        data = 0;
        uint16_t        reg_data;
 
@@ -240,6 +237,7 @@ qla2x00_nvram_request(scsi_qla_host_t *ha, uint32_t nv_cmd)
        /* Read data from NVRAM. */
        for (cnt = 0; cnt < 16; cnt++) {
                WRT_REG_WORD(&reg->nvram, NVR_SELECT | NVR_CLOCK);
+               RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
                NVRAM_DELAY();
                data <<= 1;
                reg_data = RD_REG_WORD(&reg->nvram);
@@ -265,7 +263,7 @@ qla2x00_nvram_request(scsi_qla_host_t *ha, uint32_t nv_cmd)
 static void
 qla2x00_nv_deselect(scsi_qla_host_t *ha)
 {
-       device_reg_t __iomem *reg = ha->iobase;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 
        WRT_REG_WORD(&reg->nvram, NVR_DESELECT);
        RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
@@ -280,7 +278,7 @@ qla2x00_nv_deselect(scsi_qla_host_t *ha)
 static void
 qla2x00_nv_write(scsi_qla_host_t *ha, uint16_t data)
 {
-       device_reg_t __iomem *reg = ha->iobase;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 
        WRT_REG_WORD(&reg->nvram, data | NVR_SELECT | NVR_WRT_ENABLE);
        RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
@@ -294,3 +292,1364 @@ qla2x00_nv_write(scsi_qla_host_t *ha, uint16_t data)
        NVRAM_DELAY();
 }
 
+/**
+ * qla2x00_clear_nvram_protection() -
+ * @ha: HA context
+ */
+static int
+qla2x00_clear_nvram_protection(scsi_qla_host_t *ha)
+{
+       int ret, stat;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+       uint32_t word;
+       uint16_t wprot, wprot_old;
+
+       /* Clear NVRAM write protection. */
+       ret = QLA_FUNCTION_FAILED;
+       wprot_old = cpu_to_le16(qla2x00_get_nvram_word(ha, 0));
+       stat = qla2x00_write_nvram_word_tmo(ha, 0,
+           __constant_cpu_to_le16(0x1234), 100000);
+       wprot = cpu_to_le16(qla2x00_get_nvram_word(ha, 0));
+       if (stat != QLA_SUCCESS || wprot != __constant_cpu_to_le16(0x1234)) {
+               /* Write enable. */
+               qla2x00_nv_write(ha, NVR_DATA_OUT);
+               qla2x00_nv_write(ha, 0);
+               qla2x00_nv_write(ha, 0);
+               for (word = 0; word < 8; word++)
+                       qla2x00_nv_write(ha, NVR_DATA_OUT);
+
+               qla2x00_nv_deselect(ha);
+
+               /* Enable protection register. */
+               qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
+               qla2x00_nv_write(ha, NVR_PR_ENABLE);
+               qla2x00_nv_write(ha, NVR_PR_ENABLE);
+               for (word = 0; word < 8; word++)
+                       qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
+
+               qla2x00_nv_deselect(ha);
+
+               /* Clear protection register (ffff is cleared). */
+               qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
+               qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
+               qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
+               for (word = 0; word < 8; word++)
+                       qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
+
+               qla2x00_nv_deselect(ha);
+
+               /* Wait for NVRAM to become ready. */
+               WRT_REG_WORD(&reg->nvram, NVR_SELECT);
+               RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
+               do {
+                       NVRAM_DELAY();
+                       word = RD_REG_WORD(&reg->nvram);
+               } while ((word & NVR_DATA_IN) == 0);
+
+               ret = QLA_SUCCESS;
+       } else
+               qla2x00_write_nvram_word(ha, 0, wprot_old);
+
+       return ret;
+}
+
+static void
+qla2x00_set_nvram_protection(scsi_qla_host_t *ha, int stat)
+{
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+       uint32_t word;
+
+       if (stat != QLA_SUCCESS)
+               return;
+
+       /* Set NVRAM write protection. */
+       /* Write enable. */
+       qla2x00_nv_write(ha, NVR_DATA_OUT);
+       qla2x00_nv_write(ha, 0);
+       qla2x00_nv_write(ha, 0);
+       for (word = 0; word < 8; word++)
+               qla2x00_nv_write(ha, NVR_DATA_OUT);
+
+       qla2x00_nv_deselect(ha);
+
+       /* Enable protection register. */
+       qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
+       qla2x00_nv_write(ha, NVR_PR_ENABLE);
+       qla2x00_nv_write(ha, NVR_PR_ENABLE);
+       for (word = 0; word < 8; word++)
+               qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
+
+       qla2x00_nv_deselect(ha);
+
+       /* Enable protection register. */
+       qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
+       qla2x00_nv_write(ha, NVR_PR_ENABLE);
+       qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
+       for (word = 0; word < 8; word++)
+               qla2x00_nv_write(ha, NVR_PR_ENABLE);
+
+       qla2x00_nv_deselect(ha);
+
+       /* Wait for NVRAM to become ready. */
+       WRT_REG_WORD(&reg->nvram, NVR_SELECT);
+       RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
+       do {
+               NVRAM_DELAY();
+               word = RD_REG_WORD(&reg->nvram);
+       } while ((word & NVR_DATA_IN) == 0);
+}
+
+
+/*****************************************************************************/
+/* Flash Manipulation Routines                                               */
+/*****************************************************************************/
+
+static inline uint32_t
+flash_conf_to_access_addr(uint32_t faddr)
+{
+       return FARX_ACCESS_FLASH_CONF | faddr;
+}
+
+static inline uint32_t
+flash_data_to_access_addr(uint32_t faddr)
+{
+       return FARX_ACCESS_FLASH_DATA | faddr;
+}
+
+static inline uint32_t
+nvram_conf_to_access_addr(uint32_t naddr)
+{
+       return FARX_ACCESS_NVRAM_CONF | naddr;
+}
+
+static inline uint32_t
+nvram_data_to_access_addr(uint32_t naddr)
+{
+       return FARX_ACCESS_NVRAM_DATA | naddr;
+}
+
+uint32_t
+qla24xx_read_flash_dword(scsi_qla_host_t *ha, uint32_t addr)
+{
+       int rval;
+       uint32_t cnt, data;
+       struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+       WRT_REG_DWORD(&reg->flash_addr, addr & ~FARX_DATA_FLAG);
+       /* Wait for READ cycle to complete. */
+       rval = QLA_SUCCESS;
+       for (cnt = 3000;
+           (RD_REG_DWORD(&reg->flash_addr) & FARX_DATA_FLAG) == 0 &&
+           rval == QLA_SUCCESS; cnt--) {
+               if (cnt)
+                       udelay(10);
+               else
+                       rval = QLA_FUNCTION_TIMEOUT;
+       }
+
+       /* TODO: What happens if we time out? */
+       data = 0xDEADDEAD;
+       if (rval == QLA_SUCCESS)
+               data = RD_REG_DWORD(&reg->flash_data);
+
+       return data;
+}
+
+uint32_t *
+qla24xx_read_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr,
+    uint32_t dwords)
+{
+       uint32_t i;
+
+       /* Dword reads to flash. */
+       for (i = 0; i < dwords; i++, faddr++)
+               dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
+                   flash_data_to_access_addr(faddr)));
+
+       return dwptr;
+}
+
+int
+qla24xx_write_flash_dword(scsi_qla_host_t *ha, uint32_t addr, uint32_t data)
+{
+       int rval;
+       uint32_t cnt;
+       struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+       WRT_REG_DWORD(&reg->flash_data, data);
+       RD_REG_DWORD(&reg->flash_data);         /* PCI Posting. */
+       WRT_REG_DWORD(&reg->flash_addr, addr | FARX_DATA_FLAG);
+       /* Wait for Write cycle to complete. */
+       rval = QLA_SUCCESS;
+       for (cnt = 500000; (RD_REG_DWORD(&reg->flash_addr) & FARX_DATA_FLAG) &&
+           rval == QLA_SUCCESS; cnt--) {
+               if (cnt)
+                       udelay(10);
+               else
+                       rval = QLA_FUNCTION_TIMEOUT;
+       }
+       return rval;
+}
+
+void
+qla24xx_get_flash_manufacturer(scsi_qla_host_t *ha, uint8_t *man_id,
+    uint8_t *flash_id)
+{
+       uint32_t ids;
+
+       ids = qla24xx_read_flash_dword(ha, flash_data_to_access_addr(0xd03ab));
+       *man_id = LSB(ids);
+       *flash_id = MSB(ids);
+}
+
+int
+qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr,
+    uint32_t dwords)
+{
+       int ret;
+       uint32_t liter;
+       uint32_t sec_mask, rest_addr, conf_addr;
+       uint32_t fdata;
+       uint8_t man_id, flash_id;
+       struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+       ret = QLA_SUCCESS;
+
+       qla24xx_get_flash_manufacturer(ha, &man_id, &flash_id);
+       DEBUG9(printk("%s(%ld): Flash man_id=%d flash_id=%d\n", __func__,
+           ha->host_no, man_id, flash_id));
+
+       conf_addr = flash_conf_to_access_addr(0x03d8);
+       switch (man_id) {
+       case 0xbf: /* STT flash. */
+               rest_addr = 0x1fff;
+               sec_mask = 0x3e000;
+               if (flash_id == 0x80)
+                       conf_addr = flash_conf_to_access_addr(0x0352);
+               break;
+       case 0x13: /* ST M25P80. */
+               rest_addr = 0x3fff;
+               sec_mask = 0x3c000;
+               break;
+       default:
+               /* Default to 64 kb sector size. */
+               rest_addr = 0x3fff;
+               sec_mask = 0x3c000;
+               break;
+       }
+
+       /* Enable flash write. */
+       WRT_REG_DWORD(&reg->ctrl_status,
+           RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
+       RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
+
+       /* Disable flash write-protection. */
+       qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0);
+
+       do {    /* Loop once to provide quick error exit. */
+               for (liter = 0; liter < dwords; liter++, faddr++, dwptr++) {
+                       /* Are we at the beginning of a sector? */
+                       if ((faddr & rest_addr) == 0) {
+                               fdata = (faddr & sec_mask) << 2;
+                               ret = qla24xx_write_flash_dword(ha, conf_addr,
+                                   (fdata & 0xff00) |((fdata << 16) &
+                                   0xff0000) | ((fdata >> 16) & 0xff));
+                               if (ret != QLA_SUCCESS) {
+                                       DEBUG9(printk("%s(%ld) Unable to flash "
+                                           "sector: address=%x.\n", __func__,
+                                           ha->host_no, faddr));
+                                       break;
+                               }
+                       }
+                       ret = qla24xx_write_flash_dword(ha,
+                           flash_data_to_access_addr(faddr),
+                           cpu_to_le32(*dwptr));
+                       if (ret != QLA_SUCCESS) {
+                               DEBUG9(printk("%s(%ld) Unable to program flash "
+                                   "address=%x data=%x.\n", __func__,
+                                   ha->host_no, faddr, *dwptr));
+                               break;
+                       }
+               }
+       } while (0);
+
+       /* Enable flash write-protection. */
+       qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0x9c);
+
+       /* Disable flash write. */
+       WRT_REG_DWORD(&reg->ctrl_status,
+           RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
+       RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
+
+       return ret;
+}
+
+uint8_t *
+qla2x00_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
+    uint32_t bytes)
+{
+       uint32_t i;
+       uint16_t *wptr;
+
+       /* Word reads to NVRAM via registers. */
+       wptr = (uint16_t *)buf;
+       qla2x00_lock_nvram_access(ha);
+       for (i = 0; i < bytes >> 1; i++, naddr++)
+               wptr[i] = cpu_to_le16(qla2x00_get_nvram_word(ha,
+                   naddr));
+       qla2x00_unlock_nvram_access(ha);
+
+       return buf;
+}
+
+uint8_t *
+qla24xx_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
+    uint32_t bytes)
+{
+       uint32_t i;
+       uint32_t *dwptr;
+
+       /* Dword reads to flash. */
+       dwptr = (uint32_t *)buf;
+       for (i = 0; i < bytes >> 2; i++, naddr++)
+               dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
+                   nvram_data_to_access_addr(naddr)));
+
+       return buf;
+}
+
+int
+qla2x00_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
+    uint32_t bytes)
+{
+       int ret, stat;
+       uint32_t i;
+       uint16_t *wptr;
+
+       ret = QLA_SUCCESS;
+
+       qla2x00_lock_nvram_access(ha);
+
+       /* Disable NVRAM write-protection. */
+       stat = qla2x00_clear_nvram_protection(ha);
+
+       wptr = (uint16_t *)buf;
+       for (i = 0; i < bytes >> 1; i++, naddr++) {
+               qla2x00_write_nvram_word(ha, naddr,
+                   cpu_to_le16(*wptr));
+               wptr++;
+       }
+
+       /* Enable NVRAM write-protection. */
+       qla2x00_set_nvram_protection(ha, stat);
+
+       qla2x00_unlock_nvram_access(ha);
+
+       return ret;
+}
+
+int
+qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
+    uint32_t bytes)
+{
+       int ret;
+       uint32_t i;
+       uint32_t *dwptr;
+       struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+       ret = QLA_SUCCESS;
+
+       /* Enable flash write. */
+       WRT_REG_DWORD(&reg->ctrl_status,
+           RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
+       RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
+
+       /* Disable NVRAM write-protection. */
+       qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
+           0);
+       qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
+           0);
+
+       /* Dword writes to flash. */
+       dwptr = (uint32_t *)buf;
+       for (i = 0; i < bytes >> 2; i++, naddr++, dwptr++) {
+               ret = qla24xx_write_flash_dword(ha,
+                   nvram_data_to_access_addr(naddr),
+                   cpu_to_le32(*dwptr));
+               if (ret != QLA_SUCCESS) {
+                       DEBUG9(printk("%s(%ld) Unable to program "
+                           "nvram address=%x data=%x.\n", __func__,
+                           ha->host_no, naddr, *dwptr));
+                       break;
+               }
+       }
+
+       /* Enable NVRAM write-protection. */
+       qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
+           0x8c);
+
+       /* Disable flash write. */
+       WRT_REG_DWORD(&reg->ctrl_status,
+           RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
+       RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
+
+       return ret;
+}
+
+
+static inline void
+qla2x00_flip_colors(scsi_qla_host_t *ha, uint16_t *pflags)
+{
+       if (IS_QLA2322(ha)) {
+               /* Flip all colors. */
+               if (ha->beacon_color_state == QLA_LED_ALL_ON) {
+                       /* Turn off. */
+                       ha->beacon_color_state = 0;
+                       *pflags = GPIO_LED_ALL_OFF;
+               } else {
+                       /* Turn on. */
+                       ha->beacon_color_state = QLA_LED_ALL_ON;
+                       *pflags = GPIO_LED_RGA_ON;
+               }
+       } else {
+               /* Flip green led only. */
+               if (ha->beacon_color_state == QLA_LED_GRN_ON) {
+                       /* Turn off. */
+                       ha->beacon_color_state = 0;
+                       *pflags = GPIO_LED_GREEN_OFF_AMBER_OFF;
+               } else {
+                       /* Turn on. */
+                       ha->beacon_color_state = QLA_LED_GRN_ON;
+                       *pflags = GPIO_LED_GREEN_ON_AMBER_OFF;
+               }
+       }
+}
+
+void
+qla2x00_beacon_blink(struct scsi_qla_host *ha)
+{
+       uint16_t gpio_enable;
+       uint16_t gpio_data;
+       uint16_t led_color = 0;
+       unsigned long flags;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       if (ha->pio_address)
+               reg = (struct device_reg_2xxx __iomem *)ha->pio_address;
+
+       spin_lock_irqsave(&ha->hardware_lock, flags);
+
+       /* Save the Original GPIOE. */
+       if (ha->pio_address) {
+               gpio_enable = RD_REG_WORD_PIO(&reg->gpioe);
+               gpio_data = RD_REG_WORD_PIO(&reg->gpiod);
+       } else {
+               gpio_enable = RD_REG_WORD(&reg->gpioe);
+               gpio_data = RD_REG_WORD(&reg->gpiod);
+       }
+
+       /* Set the modified gpio_enable values */
+       gpio_enable |= GPIO_LED_MASK;
+
+       if (ha->pio_address) {
+               WRT_REG_WORD_PIO(&reg->gpioe, gpio_enable);
+       } else {
+               WRT_REG_WORD(&reg->gpioe, gpio_enable);
+               RD_REG_WORD(&reg->gpioe);
+       }
+
+       qla2x00_flip_colors(ha, &led_color);
+
+       /* Clear out any previously set LED color. */
+       gpio_data &= ~GPIO_LED_MASK;
+
+       /* Set the new input LED color to GPIOD. */
+       gpio_data |= led_color;
+
+       /* Set the modified gpio_data values */
+       if (ha->pio_address) {
+               WRT_REG_WORD_PIO(&reg->gpiod, gpio_data);
+       } else {
+               WRT_REG_WORD(&reg->gpiod, gpio_data);
+               RD_REG_WORD(&reg->gpiod);
+       }
+
+       spin_unlock_irqrestore(&ha->hardware_lock, flags);
+}
+
+int
+qla2x00_beacon_on(struct scsi_qla_host *ha)
+{
+       uint16_t gpio_enable;
+       uint16_t gpio_data;
+       unsigned long flags;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
+       ha->fw_options[1] |= FO1_DISABLE_GPIO6_7;
+
+       if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS) {
+               qla_printk(KERN_WARNING, ha,
+                   "Unable to update fw options (beacon on).\n");
+               return QLA_FUNCTION_FAILED;
+       }
+
+       if (ha->pio_address)
+               reg = (struct device_reg_2xxx __iomem *)ha->pio_address;
+
+       /* Turn off LEDs. */
+       spin_lock_irqsave(&ha->hardware_lock, flags);
+       if (ha->pio_address) {
+               gpio_enable = RD_REG_WORD_PIO(&reg->gpioe);
+               gpio_data = RD_REG_WORD_PIO(&reg->gpiod);
+       } else {
+               gpio_enable = RD_REG_WORD(&reg->gpioe);
+               gpio_data = RD_REG_WORD(&reg->gpiod);
+       }
+       gpio_enable |= GPIO_LED_MASK;
+
+       /* Set the modified gpio_enable values. */
+       if (ha->pio_address) {
+               WRT_REG_WORD_PIO(&reg->gpioe, gpio_enable);
+       } else {
+               WRT_REG_WORD(&reg->gpioe, gpio_enable);
+               RD_REG_WORD(&reg->gpioe);
+       }
+
+       /* Clear out previously set LED colour. */
+       gpio_data &= ~GPIO_LED_MASK;
+       if (ha->pio_address) {
+               WRT_REG_WORD_PIO(&reg->gpiod, gpio_data);
+       } else {
+               WRT_REG_WORD(&reg->gpiod, gpio_data);
+               RD_REG_WORD(&reg->gpiod);
+       }
+       spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+       /*
+        * Let the per HBA timer kick off the blinking process based on
+        * the following flags. No need to do anything else now.
+        */
+       ha->beacon_blink_led = 1;
+       ha->beacon_color_state = 0;
+
+       return QLA_SUCCESS;
+}
+
+int
+qla2x00_beacon_off(struct scsi_qla_host *ha)
+{
+       int rval = QLA_SUCCESS;
+
+       ha->beacon_blink_led = 0;
+
+       /* Set the on flag so when it gets flipped it will be off. */
+       if (IS_QLA2322(ha))
+               ha->beacon_color_state = QLA_LED_ALL_ON;
+       else
+               ha->beacon_color_state = QLA_LED_GRN_ON;
+
+       ha->isp_ops.beacon_blink(ha);   /* This turns green LED off */
+
+       ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
+       ha->fw_options[1] &= ~FO1_DISABLE_GPIO6_7;
+
+       rval = qla2x00_set_fw_options(ha, ha->fw_options);
+       if (rval != QLA_SUCCESS)
+               qla_printk(KERN_WARNING, ha,
+                   "Unable to update fw options (beacon off).\n");
+       return rval;
+}
+
+
+static inline void
+qla24xx_flip_colors(scsi_qla_host_t *ha, uint16_t *pflags)
+{
+       /* Flip all colors. */
+       if (ha->beacon_color_state == QLA_LED_ALL_ON) {
+               /* Turn off. */
+               ha->beacon_color_state = 0;
+               *pflags = 0;
+       } else {
+               /* Turn on. */
+               ha->beacon_color_state = QLA_LED_ALL_ON;
+               *pflags = GPDX_LED_YELLOW_ON | GPDX_LED_AMBER_ON;
+       }
+}
+
+void
+qla24xx_beacon_blink(struct scsi_qla_host *ha)
+{
+       uint16_t led_color = 0;
+       uint32_t gpio_data;
+       unsigned long flags;
+       struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+       /* Save the Original GPIOD. */
+       spin_lock_irqsave(&ha->hardware_lock, flags);
+       gpio_data = RD_REG_DWORD(&reg->gpiod);
+
+       /* Enable the gpio_data reg for update. */
+       gpio_data |= GPDX_LED_UPDATE_MASK;
+
+       WRT_REG_DWORD(&reg->gpiod, gpio_data);
+       gpio_data = RD_REG_DWORD(&reg->gpiod);
+
+       /* Set the color bits. */
+       qla24xx_flip_colors(ha, &led_color);
+
+       /* Clear out any previously set LED color. */
+       gpio_data &= ~GPDX_LED_COLOR_MASK;
+
+       /* Set the new input LED color to GPIOD. */
+       gpio_data |= led_color;
+
+       /* Set the modified gpio_data values. */
+       WRT_REG_DWORD(&reg->gpiod, gpio_data);
+       gpio_data = RD_REG_DWORD(&reg->gpiod);
+       spin_unlock_irqrestore(&ha->hardware_lock, flags);
+}
+
+int
+qla24xx_beacon_on(struct scsi_qla_host *ha)
+{
+       uint32_t gpio_data;
+       unsigned long flags;
+       struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+       if (ha->beacon_blink_led == 0) {
+               /* Enable firmware for update */
+               ha->fw_options[1] |= ADD_FO1_DISABLE_GPIO_LED_CTRL;
+
+               if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS)
+                       return QLA_FUNCTION_FAILED;
+
+               if (qla2x00_get_fw_options(ha, ha->fw_options) !=
+                   QLA_SUCCESS) {
+                       qla_printk(KERN_WARNING, ha,
+                           "Unable to update fw options (beacon on).\n");
+                       return QLA_FUNCTION_FAILED;
+               }
+
+               spin_lock_irqsave(&ha->hardware_lock, flags);
+               gpio_data = RD_REG_DWORD(&reg->gpiod);
+
+               /* Enable the gpio_data reg for update. */
+               gpio_data |= GPDX_LED_UPDATE_MASK;
+               WRT_REG_DWORD(&reg->gpiod, gpio_data);
+               RD_REG_DWORD(&reg->gpiod);
+
+               spin_unlock_irqrestore(&ha->hardware_lock, flags);
+       }
+
+       /* So all colors blink together. */
+       ha->beacon_color_state = 0;
+
+       /* Let the per HBA timer kick off the blinking process. */
+       ha->beacon_blink_led = 1;
+
+       return QLA_SUCCESS;
+}
+
+int
+qla24xx_beacon_off(struct scsi_qla_host *ha)
+{
+       uint32_t gpio_data;
+       unsigned long flags;
+       struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+       ha->beacon_blink_led = 0;
+       ha->beacon_color_state = QLA_LED_ALL_ON;
+
+       ha->isp_ops.beacon_blink(ha);   /* Will flip to all off. */
+
+       /* Give control back to firmware. */
+       spin_lock_irqsave(&ha->hardware_lock, flags);
+       gpio_data = RD_REG_DWORD(&reg->gpiod);
+
+       /* Disable the gpio_data reg for update. */
+       gpio_data &= ~GPDX_LED_UPDATE_MASK;
+       WRT_REG_DWORD(&reg->gpiod, gpio_data);
+       RD_REG_DWORD(&reg->gpiod);
+       spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+       ha->fw_options[1] &= ~ADD_FO1_DISABLE_GPIO_LED_CTRL;
+
+       if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS) {
+               qla_printk(KERN_WARNING, ha,
+                   "Unable to update fw options (beacon off).\n");
+               return QLA_FUNCTION_FAILED;
+       }
+
+       if (qla2x00_get_fw_options(ha, ha->fw_options) != QLA_SUCCESS) {
+               qla_printk(KERN_WARNING, ha,
+                   "Unable to get fw options (beacon off).\n");
+               return QLA_FUNCTION_FAILED;
+       }
+
+       return QLA_SUCCESS;
+}
+
+
+/*
+ * Flash support routines
+ */
+
+/**
+ * qla2x00_flash_enable() - Setup flash for reading and writing.
+ * @ha: HA context
+ */
+static void
+qla2x00_flash_enable(scsi_qla_host_t *ha)
+{
+       uint16_t data;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       data = RD_REG_WORD(&reg->ctrl_status);
+       data |= CSR_FLASH_ENABLE;
+       WRT_REG_WORD(&reg->ctrl_status, data);
+       RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
+}
+
+/**
+ * qla2x00_flash_disable() - Disable flash and allow RISC to run.
+ * @ha: HA context
+ */
+static void
+qla2x00_flash_disable(scsi_qla_host_t *ha)
+{
+       uint16_t data;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       data = RD_REG_WORD(&reg->ctrl_status);
+       data &= ~(CSR_FLASH_ENABLE);
+       WRT_REG_WORD(&reg->ctrl_status, data);
+       RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
+}
+
+/**
+ * qla2x00_read_flash_byte() - Reads a byte from flash
+ * @ha: HA context
+ * @addr: Address in flash to read
+ *
+ * A word is read from the chip, but, only the lower byte is valid.
+ *
+ * Returns the byte read from flash @addr.
+ */
+static uint8_t
+qla2x00_read_flash_byte(scsi_qla_host_t *ha, uint32_t addr)
+{
+       uint16_t data;
+       uint16_t bank_select;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       bank_select = RD_REG_WORD(&reg->ctrl_status);
+
+       if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
+               /* Specify 64K address range: */
+               /*  clear out Module Select and Flash Address bits [19:16]. */
+               bank_select &= ~0xf8;
+               bank_select |= addr >> 12 & 0xf0;
+               bank_select |= CSR_FLASH_64K_BANK;
+               WRT_REG_WORD(&reg->ctrl_status, bank_select);
+               RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
+
+               WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
+               data = RD_REG_WORD(&reg->flash_data);
+
+               return (uint8_t)data;
+       }
+
+       /* Setup bit 16 of flash address. */
+       if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
+               bank_select |= CSR_FLASH_64K_BANK;
+               WRT_REG_WORD(&reg->ctrl_status, bank_select);
+               RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
+       } else if (((addr & BIT_16) == 0) &&
+           (bank_select & CSR_FLASH_64K_BANK)) {
+               bank_select &= ~(CSR_FLASH_64K_BANK);
+               WRT_REG_WORD(&reg->ctrl_status, bank_select);
+               RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
+       }
+
+       /* Always perform IO mapped accesses to the FLASH registers. */
+       if (ha->pio_address) {
+               uint16_t data2;
+
+               reg = (struct device_reg_2xxx __iomem *)ha->pio_address;
+               WRT_REG_WORD_PIO(&reg->flash_address, (uint16_t)addr);
+               do {
+                       data = RD_REG_WORD_PIO(&reg->flash_data);
+                       barrier();
+                       cpu_relax();
+                       data2 = RD_REG_WORD_PIO(&reg->flash_data);
+               } while (data != data2);
+       } else {
+               WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
+               data = qla2x00_debounce_register(&reg->flash_data);
+       }
+
+       return (uint8_t)data;
+}
+
+/**
+ * qla2x00_write_flash_byte() - Write a byte to flash
+ * @ha: HA context
+ * @addr: Address in flash to write
+ * @data: Data to write
+ */
+static void
+qla2x00_write_flash_byte(scsi_qla_host_t *ha, uint32_t addr, uint8_t data)
+{
+       uint16_t bank_select;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       bank_select = RD_REG_WORD(&reg->ctrl_status);
+       if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
+               /* Specify 64K address range: */
+               /*  clear out Module Select and Flash Address bits [19:16]. */
+               bank_select &= ~0xf8;
+               bank_select |= addr >> 12 & 0xf0;
+               bank_select |= CSR_FLASH_64K_BANK;
+               WRT_REG_WORD(&reg->ctrl_status, bank_select);
+               RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
+
+               WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
+               RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
+               WRT_REG_WORD(&reg->flash_data, (uint16_t)data);
+               RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
+
+               return;
+       }
+
+       /* Setup bit 16 of flash address. */
+       if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
+               bank_select |= CSR_FLASH_64K_BANK;
+               WRT_REG_WORD(&reg->ctrl_status, bank_select);
+               RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
+       } else if (((addr & BIT_16) == 0) &&
+           (bank_select & CSR_FLASH_64K_BANK)) {
+               bank_select &= ~(CSR_FLASH_64K_BANK);
+               WRT_REG_WORD(&reg->ctrl_status, bank_select);
+               RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
+       }
+
+       /* Always perform IO mapped accesses to the FLASH registers. */
+       if (ha->pio_address) {
+               reg = (struct device_reg_2xxx __iomem *)ha->pio_address;
+               WRT_REG_WORD_PIO(&reg->flash_address, (uint16_t)addr);
+               WRT_REG_WORD_PIO(&reg->flash_data, (uint16_t)data);
+       } else {
+               WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
+               RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
+               WRT_REG_WORD(&reg->flash_data, (uint16_t)data);
+               RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
+       }
+}
+
+/**
+ * qla2x00_poll_flash() - Polls flash for completion.
+ * @ha: HA context
+ * @addr: Address in flash to poll
+ * @poll_data: Data to be polled
+ * @man_id: Flash manufacturer ID
+ * @flash_id: Flash ID
+ *
+ * This function polls the device until bit 7 of what is read matches data
+ * bit 7 or until data bit 5 becomes a 1.  If that hapens, the flash ROM timed
+ * out (a fatal error).  The flash book recommeds reading bit 7 again after
+ * reading bit 5 as a 1.
+ *
+ * Returns 0 on success, else non-zero.
+ */
+static int
+qla2x00_poll_flash(scsi_qla_host_t *ha, uint32_t addr, uint8_t poll_data,
+    uint8_t man_id, uint8_t flash_id)
+{
+       int status;
+       uint8_t flash_data;
+       uint32_t cnt;
+
+       status = 1;
+
+       /* Wait for 30 seconds for command to finish. */
+       poll_data &= BIT_7;
+       for (cnt = 3000000; cnt; cnt--) {
+               flash_data = qla2x00_read_flash_byte(ha, addr);
+               if ((flash_data & BIT_7) == poll_data) {
+                       status = 0;
+                       break;
+               }
+
+               if (man_id != 0x40 && man_id != 0xda) {
+                       if ((flash_data & BIT_5) && cnt > 2)
+                               cnt = 2;
+               }
+               udelay(10);
+               barrier();
+       }
+       return status;
+}
+
+/**
+ * qla2x00_program_flash_address() - Programs a flash address
+ * @ha: HA context
+ * @addr: Address in flash to program
+ * @data: Data to be written in flash
+ * @man_id: Flash manufacturer ID
+ * @flash_id: Flash ID
+ *
+ * Returns 0 on success, else non-zero.
+ */
+static int
+qla2x00_program_flash_address(scsi_qla_host_t *ha, uint32_t addr, uint8_t data,
+    uint8_t man_id, uint8_t flash_id)
+{
+       /* Write Program Command Sequence. */
+       if (IS_OEM_001(ha)) {
+               qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
+               qla2x00_write_flash_byte(ha, 0x555, 0x55);
+               qla2x00_write_flash_byte(ha, 0xaaa, 0xa0);
+               qla2x00_write_flash_byte(ha, addr, data);
+       } else {
+               if (man_id == 0xda && flash_id == 0xc1) {
+                       qla2x00_write_flash_byte(ha, addr, data);
+                       if (addr & 0x7e)
+                               return 0;
+               } else {
+                       qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
+                       qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
+                       qla2x00_write_flash_byte(ha, 0x5555, 0xa0);
+                       qla2x00_write_flash_byte(ha, addr, data);
+               }
+       }
+
+       udelay(150);
+
+       /* Wait for write to complete. */
+       return qla2x00_poll_flash(ha, addr, data, man_id, flash_id);
+}
+
+/**
+ * qla2x00_erase_flash() - Erase the flash.
+ * @ha: HA context
+ * @man_id: Flash manufacturer ID
+ * @flash_id: Flash ID
+ *
+ * Returns 0 on success, else non-zero.
+ */
+static int
+qla2x00_erase_flash(scsi_qla_host_t *ha, uint8_t man_id, uint8_t flash_id)
+{
+       /* Individual Sector Erase Command Sequence */
+       if (IS_OEM_001(ha)) {
+               qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
+               qla2x00_write_flash_byte(ha, 0x555, 0x55);
+               qla2x00_write_flash_byte(ha, 0xaaa, 0x80);
+               qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
+               qla2x00_write_flash_byte(ha, 0x555, 0x55);
+               qla2x00_write_flash_byte(ha, 0xaaa, 0x10);
+       } else {
+               qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
+               qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
+               qla2x00_write_flash_byte(ha, 0x5555, 0x80);
+               qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
+               qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
+               qla2x00_write_flash_byte(ha, 0x5555, 0x10);
+       }
+
+       udelay(150);
+
+       /* Wait for erase to complete. */
+       return qla2x00_poll_flash(ha, 0x00, 0x80, man_id, flash_id);
+}
+
+/**
+ * qla2x00_erase_flash_sector() - Erase a flash sector.
+ * @ha: HA context
+ * @addr: Flash sector to erase
+ * @sec_mask: Sector address mask
+ * @man_id: Flash manufacturer ID
+ * @flash_id: Flash ID
+ *
+ * Returns 0 on success, else non-zero.
+ */
+static int
+qla2x00_erase_flash_sector(scsi_qla_host_t *ha, uint32_t addr,
+    uint32_t sec_mask, uint8_t man_id, uint8_t flash_id)
+{
+       /* Individual Sector Erase Command Sequence */
+       qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
+       qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
+       qla2x00_write_flash_byte(ha, 0x5555, 0x80);
+       qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
+       qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
+       if (man_id == 0x1f && flash_id == 0x13)
+               qla2x00_write_flash_byte(ha, addr & sec_mask, 0x10);
+       else
+               qla2x00_write_flash_byte(ha, addr & sec_mask, 0x30);
+
+       udelay(150);
+
+       /* Wait for erase to complete. */
+       return qla2x00_poll_flash(ha, addr, 0x80, man_id, flash_id);
+}
+
+/**
+ * qla2x00_get_flash_manufacturer() - Read manufacturer ID from flash chip.
+ * @man_id: Flash manufacturer ID
+ * @flash_id: Flash ID
+ */
+static void
+qla2x00_get_flash_manufacturer(scsi_qla_host_t *ha, uint8_t *man_id,
+    uint8_t *flash_id)
+{
+       qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
+       qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
+       qla2x00_write_flash_byte(ha, 0x5555, 0x90);
+       *man_id = qla2x00_read_flash_byte(ha, 0x0000);
+       *flash_id = qla2x00_read_flash_byte(ha, 0x0001);
+       qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
+       qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
+       qla2x00_write_flash_byte(ha, 0x5555, 0xf0);
+}
+
+
+static inline void
+qla2x00_suspend_hba(struct scsi_qla_host *ha)
+{
+       int cnt;
+       unsigned long flags;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       /* Suspend HBA. */
+       scsi_block_requests(ha->host);
+       ha->isp_ops.disable_intrs(ha);
+       set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
+
+       /* Pause RISC. */
+       spin_lock_irqsave(&ha->hardware_lock, flags);
+       WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
+       RD_REG_WORD(&reg->hccr);
+       if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
+               for (cnt = 0; cnt < 30000; cnt++) {
+                       if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
+                               break;
+                       udelay(100);
+               }
+       } else {
+               udelay(10);
+       }
+       spin_unlock_irqrestore(&ha->hardware_lock, flags);
+}
+
+static inline void
+qla2x00_resume_hba(struct scsi_qla_host *ha)
+{
+       /* Resume HBA. */
+       clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
+       set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+       qla2xxx_wake_dpc(ha);
+       qla2x00_wait_for_hba_online(ha);
+       scsi_unblock_requests(ha->host);
+}
+
+uint8_t *
+qla2x00_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
+    uint32_t offset, uint32_t length)
+{
+       unsigned long flags;
+       uint32_t addr, midpoint;
+       uint8_t *data;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       /* Suspend HBA. */
+       qla2x00_suspend_hba(ha);
+
+       /* Go with read. */
+       spin_lock_irqsave(&ha->hardware_lock, flags);
+       midpoint = ha->optrom_size / 2;
+
+       qla2x00_flash_enable(ha);
+       WRT_REG_WORD(&reg->nvram, 0);
+       RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
+       for (addr = offset, data = buf; addr < length; addr++, data++) {
+               if (addr == midpoint) {
+                       WRT_REG_WORD(&reg->nvram, NVR_SELECT);
+                       RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
+               }
+
+               *data = qla2x00_read_flash_byte(ha, addr);
+       }
+       qla2x00_flash_disable(ha);
+       spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+       /* Resume HBA. */
+       qla2x00_resume_hba(ha);
+
+       return buf;
+}
+
+int
+qla2x00_write_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
+    uint32_t offset, uint32_t length)
+{
+
+       int rval;
+       unsigned long flags;
+       uint8_t man_id, flash_id, sec_number, data;
+       uint16_t wd;
+       uint32_t addr, liter, sec_mask, rest_addr;
+       struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+       /* Suspend HBA. */
+       qla2x00_suspend_hba(ha);
+
+       rval = QLA_SUCCESS;
+       sec_number = 0;
+
+       /* Reset ISP chip. */
+       spin_lock_irqsave(&ha->hardware_lock, flags);
+       WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
+       pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
+
+       /* Go with write. */
+       qla2x00_flash_enable(ha);
+       do {    /* Loop once to provide quick error exit */
+               /* Structure of flash memory based on manufacturer */
+               if (IS_OEM_001(ha)) {
+                       /* OEM variant with special flash part. */
+                       man_id = flash_id = 0;
+                       rest_addr = 0xffff;
+                       sec_mask   = 0x10000;
+                       goto update_flash;
+               }
+               qla2x00_get_flash_manufacturer(ha, &man_id, &flash_id);
+               switch (man_id) {
+               case 0x20: /* ST flash. */
+                       if (flash_id == 0xd2 || flash_id == 0xe3) {
+                               /*
+                                * ST m29w008at part - 64kb sector size with
+                                * 32kb,8kb,8kb,16kb sectors at memory address
+                                * 0xf0000.
+                                */
+                               rest_addr = 0xffff;
+                               sec_mask = 0x10000;
+                               break;   
+                       }
+                       /*
+                        * ST m29w010b part - 16kb sector size
+                        * Default to 16kb sectors
+                        */
+                       rest_addr = 0x3fff;
+                       sec_mask = 0x1c000;
+                       break;
+               case 0x40: /* Mostel flash. */
+                       /* Mostel v29c51001 part - 512 byte sector size. */
+                       rest_addr = 0x1ff;
+                       sec_mask = 0x1fe00;
+                       break;
+               case 0xbf: /* SST flash. */
+                       /* SST39sf10 part - 4kb sector size. */
+                       rest_addr = 0xfff;
+                       sec_mask = 0x1f000;
+                       break;
+               case 0xda: /* Winbond flash. */
+                       /* Winbond W29EE011 part - 256 byte sector size. */
+                       rest_addr = 0x7f;
+                       sec_mask = 0x1ff80;
+                       break;
+               case 0xc2: /* Macronix flash. */
+                       /* 64k sector size. */
+                       if (flash_id == 0x38 || flash_id == 0x4f) {
+                               rest_addr = 0xffff;
+                               sec_mask = 0x10000;
+                               break;
+                       }
+                       /* Fall through... */
+
+               case 0x1f: /* Atmel flash. */
+                       /* 512k sector size. */
+                       if (flash_id == 0x13) {
+                               rest_addr = 0x7fffffff;
+                               sec_mask =   0x80000000;
+                               break;
+                       }
+                       /* Fall through... */
+
+               case 0x01: /* AMD flash. */
+                       if (flash_id == 0x38 || flash_id == 0x40 ||
+                           flash_id == 0x4f) {
+                               /* Am29LV081 part - 64kb sector size. */
+                               /* Am29LV002BT part - 64kb sector size. */
+                               rest_addr = 0xffff;
+                               sec_mask = 0x10000;
+                               break;
+                       } else if (flash_id == 0x3e) {
+                               /*
+                                * Am29LV008b part - 64kb sector size with
+                                * 32kb,8kb,8kb,16kb sector at memory address
+                                * h0xf0000.
+                                */
+                               rest_addr = 0xffff;
+                               sec_mask = 0x10000;
+                               break;
+                       } else if (flash_id == 0x20 || flash_id == 0x6e) {
+                               /*
+                                * Am29LV010 part or AM29f010 - 16kb sector
+                                * size.
+                                */
+                               rest_addr = 0x3fff;
+                               sec_mask = 0x1c000;
+                               break;
+                       } else if (flash_id == 0x6d) {
+                               /* Am29LV001 part - 8kb sector size. */
+                               rest_addr = 0x1fff;
+                               sec_mask = 0x1e000;
+                               break;
+                       }
+               default:
+                       /* Default to 16 kb sector size. */
+                       rest_addr = 0x3fff;
+                       sec_mask = 0x1c000;
+                       break;
+               }
+
+update_flash:
+               if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
+                       if (qla2x00_erase_flash(ha, man_id, flash_id)) {
+                               rval = QLA_FUNCTION_FAILED;
+                               break;
+                       }
+               }
+
+               for (addr = offset, liter = 0; liter < length; liter++,
+                   addr++) {
+                       data = buf[liter];
+                       /* Are we at the beginning of a sector? */
+                       if ((addr & rest_addr) == 0) {
+                               if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
+                                       if (addr >= 0x10000UL) {
+                                               if (((addr >> 12) & 0xf0) &&
+                                                   ((man_id == 0x01 &&
+                                                       flash_id == 0x3e) ||
+                                                    (man_id == 0x20 &&
+                                                        flash_id == 0xd2))) {
+                                                       sec_number++;
+                                                       if (sec_number == 1) {
+                                                               rest_addr =
+                                                                   0x7fff;
+                                                               sec_mask =
+                                                                   0x18000;
+                                                       } else if (
+                                                           sec_number == 2 ||
+                                                           sec_number == 3) {
+                                                               rest_addr =
+                                                                   0x1fff;
+                                                               sec_mask =
+                                                                   0x1e000;
+                                                       } else if (
+                                                           sec_number == 4) {
+                                                               rest_addr =
+                                                                   0x3fff;
+                                                               sec_mask =
+                                                                   0x1c000;
+                                                       }
+                                               }
+                                       }
+                               } else if (addr == ha->optrom_size / 2) {
+                                       WRT_REG_WORD(&reg->nvram, NVR_SELECT);
+                                       RD_REG_WORD(&reg->nvram);
+                               }
+
+                               if (flash_id == 0xda && man_id == 0xc1) {
+                                       qla2x00_write_flash_byte(ha, 0x5555,
+                                           0xaa);
+                                       qla2x00_write_flash_byte(ha, 0x2aaa,
+                                           0x55);
+                                       qla2x00_write_flash_byte(ha, 0x5555,
+                                           0xa0);
+                               } else if (!IS_QLA2322(ha) && !IS_QLA6322(ha)) {
+                                       /* Then erase it */
+                                       if (qla2x00_erase_flash_sector(ha,
+                                           addr, sec_mask, man_id,
+                                           flash_id)) {
+                                               rval = QLA_FUNCTION_FAILED;
+                                               break;
+                                       }
+                                       if (man_id == 0x01 && flash_id == 0x6d)
+                                               sec_number++;
+                               }
+                       }
+
+                       if (man_id == 0x01 && flash_id == 0x6d) {
+                               if (sec_number == 1 &&
+                                   addr == (rest_addr - 1)) {
+                                       rest_addr = 0x0fff;
+                                       sec_mask   = 0x1f000;
+                               } else if (sec_number == 3 && (addr & 0x7ffe)) {
+                                       rest_addr = 0x3fff;
+                                       sec_mask   = 0x1c000;
+                               }
+                       }
+
+                       if (qla2x00_program_flash_address(ha, addr, data,
+                           man_id, flash_id)) {
+                               rval = QLA_FUNCTION_FAILED;
+                               break;
+                       }
+               }
+       } while (0);
+       qla2x00_flash_disable(ha);
+       spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+       /* Resume HBA. */
+       qla2x00_resume_hba(ha);
+
+       return rval;
+}
+
+uint8_t *
+qla24xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
+    uint32_t offset, uint32_t length)
+{
+       /* Suspend HBA. */
+       scsi_block_requests(ha->host);
+       ha->isp_ops.disable_intrs(ha);
+       set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
+
+       /* Go with read. */
+       qla24xx_read_flash_data(ha, (uint32_t *)buf, offset >> 2, length >> 2);
+
+       /* Resume HBA. */
+       clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
+       ha->isp_ops.enable_intrs(ha);
+       scsi_unblock_requests(ha->host);
+
+       return buf;
+}
+
+int
+qla24xx_write_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
+    uint32_t offset, uint32_t length)
+{
+       int rval;
+
+       /* Suspend HBA. */
+       scsi_block_requests(ha->host);
+       ha->isp_ops.disable_intrs(ha);
+       set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
+
+       /* Go with write. */
+       rval = qla24xx_write_flash_data(ha, (uint32_t *)buf, offset >> 2,
+           length >> 2);
+
+       /* Resume HBA -- RISC reset needed. */
+       clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
+       set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+       qla2xxx_wake_dpc(ha);
+       qla2x00_wait_for_hba_online(ha);
+       scsi_unblock_requests(ha->host);
+
+       return rval;
+}