Patchwork [v1,14/19] qlcnic: 83xx adpater flash interface routines

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Submitter Sony Chacko
Date Sept. 19, 2012, 7:29 p.m.
Message ID <1348082997-12333-15-git-send-email-sony.chacko@qlogic.com>
Download mbox | patch
Permalink /patch/185290/
State Superseded
Delegated to: David Miller
Headers show

Comments

Sony Chacko - Sept. 19, 2012, 7:29 p.m.
From: Sony Chacko <sony.chacko@qlogic.com>

Flash interface routines for 83xx adapter

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |   32 ++
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    |  431 ++++++++++++++++++++
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h    |   51 +++
 3 files changed, 514 insertions(+), 0 deletions(-)

Patch

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index c592589..c0eb350 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -300,6 +300,7 @@  struct uni_data_desc{
 
 /* Flash Defines and Structures */
 #define QLCNIC_FLT_LOCATION	0x3F1000
+#define QLCNIC_FDT_LOCATION     0x3F0000
 #define QLCNIC_B0_FW_IMAGE_REGION 0x74
 #define QLCNIC_C0_FW_IMAGE_REGION 0x97
 #define QLCNIC_BOOTLD_REGION    0X72
@@ -320,6 +321,36 @@  struct qlcnic_flt_entry {
 	u32 end_addr;
 };
 
+/* Flash Descriptor Table */
+struct qlcnic_fdt {
+	u32	flash_valid;
+	u16	flash_ver;
+	u16	flash_len;
+	u16	flash_cksum;
+	u16	flash_unused;
+	u8	flash_model[16];
+	u16	flash_manuf;
+	u16	flash_id;
+	u8	flash_flag;
+	u8	erase_cmd;
+	u8	alt_erase_cmd;
+	u8	write_enable_cmd;
+	u8	write_enable_bits;
+	u8	write_statusreg_cmd;
+	u8	unprotected_sec_cmd;
+	u8	read_manuf_cmd;
+	u32	block_size;
+	u32	alt_block_size;
+	u32	flash_size;
+	u32	write_enable_data;
+	u8	readid_addr_len;
+	u8	write_disable_bits;
+	u8	read_dev_id_len;
+	u8	chip_erase_cmd;
+	u16	read_timeo;
+	u8	protected_sec_cmd;
+	u8	resvd[65];
+};
 /* Magic number to let user know flash is programmed */
 #define	QLCNIC_BDINFO_MAGIC 0x12345678
 
@@ -504,6 +535,7 @@  struct qlcnic_hardware_context {
 	struct qlcnic_hardware_ops *hw_ops;
 	struct qlcnic_nic_intr_coalesce coal;
 	struct qlcnic_fw_dump fw_dump;
+	struct qlcnic_fdt fdt;
 	struct qlcnic_intrpt_config *intr_tbl;
 	u32 *reg_tbl;
 	u32 *ext_reg_tbl;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 7d9947e..9c51cea 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -2101,3 +2101,434 @@  out:
 	qlcnic_free_mbx_args(&cmd);
 	return err;
 }
+
+int qlcnic_83xx_lock_flash(struct qlcnic_adapter *adapter)
+{
+	int id, timeout = 0;
+	u32 status = 0;
+
+	while (status == 0) {
+		status = QLCRD(adapter, QLCNIC_FLASH_LOCK);
+		if (status)
+			break;
+
+		if (++timeout >= QLC_83XX_FLASH_LOCK_TIMEOUT) {
+			id = QLCRD(adapter, QLCNIC_FLASH_LOCK_OWNER);
+			dev_err(&adapter->pdev->dev,
+				"%s: failed: lock held by %d\n", __func__, id);
+			return -EIO;
+		}
+		usleep_range(1000, 2000);
+	}
+
+	QLCWR(adapter, QLCNIC_FLASH_LOCK_OWNER, adapter->portnum);
+	return 0;
+}
+
+void qlcnic_83xx_unlock_flash(struct qlcnic_adapter *adapter)
+{
+	QLCRD(adapter, QLCNIC_FLASH_UNLOCK);
+	QLCWR(adapter, QLCNIC_FLASH_LOCK_OWNER, 0xFF);
+}
+
+int qlcnic_83xx_flash_read32(struct qlcnic_adapter *adapter, u32 flash_addr,
+			     u8 *p_data, int count)
+{
+	int i, err;
+	u32 word, addr = flash_addr;
+	ulong  indirect_addr;
+
+	if (qlcnic_83xx_lock_flash(adapter) != 0)
+		return -EIO;
+
+	if (addr & 0x3) {
+		dev_err(&adapter->pdev->dev, "Illegal addr = 0x%x\n", addr);
+		qlcnic_83xx_unlock_flash(adapter);
+		return -EIO;
+	}
+
+	for (i = 0; i < count; i++) {
+		if (qlcnic_83xx_wrt_reg_indirect(adapter,
+						 QLC_83XX_FLASH_DIRECT_WINDOW,
+						 (addr))) {
+			qlcnic_83xx_unlock_flash(adapter);
+			return -EIO;
+		}
+
+		indirect_addr = QLC_83XX_FLASH_DIRECT_DATA(addr);
+
+		word = qlcnic_83xx_rd_reg_indirect(adapter,
+						   indirect_addr,
+						   &err);
+		*(__le32 *)p_data  = le32_to_cpu(word);
+		p_data = p_data + 4;
+		addr = addr + 4;
+	}
+
+	qlcnic_83xx_unlock_flash(adapter);
+
+	return 0;
+}
+
+int qlcnic_83xx_lockless_flash_read32(struct qlcnic_adapter *adapter,
+				      u32 flash_addr, u8 *p_data, int count)
+{
+	int i, err;
+	u32 word, flash_offset, addr = flash_addr;
+	ulong indirect_add, direct_window;
+
+	flash_offset = addr & (QLCNIC_FLASH_SECTOR_SIZE - 1);
+
+	if (addr & 0x3) {
+		dev_err(&adapter->pdev->dev, "Illegal addr = 0x%x\n", addr);
+		return -EIO;
+	}
+
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_DIRECT_WINDOW,
+				     (addr));
+
+	/* Check if data is spread across multiple sectors  */
+	if ((flash_offset + (count * sizeof(u32))) >
+				(QLCNIC_FLASH_SECTOR_SIZE - 1)) {
+
+		/* Multi sector read */
+		for (i = 0; i < count; i++) {
+			indirect_add = QLC_83XX_FLASH_DIRECT_DATA(addr);
+			word = qlcnic_83xx_rd_reg_indirect(adapter,
+							   indirect_add,
+							   &err);
+
+			*(__le32 *)p_data  = le32_to_cpu(word);
+			p_data = p_data + 4;
+			addr = addr + 4;
+			flash_offset = flash_offset + 4;
+
+			if (flash_offset > (QLCNIC_FLASH_SECTOR_SIZE - 1)) {
+				direct_window = QLC_83XX_FLASH_DIRECT_WINDOW;
+				/* This write is needed once for each sector */
+				qlcnic_83xx_wrt_reg_indirect(adapter,
+							     direct_window,
+							     (addr));
+				flash_offset = 0;
+			}
+		}
+	} else {
+		/* Single sector read */
+		for (i = 0; i < count; i++) {
+			indirect_add = QLC_83XX_FLASH_DIRECT_DATA(addr);
+			word = qlcnic_83xx_rd_reg_indirect(adapter,
+							   indirect_add,
+							   &err);
+			*(__le32 *)p_data  = cpu_to_le32(word);
+			p_data = p_data + 4;
+			addr = addr + 4;
+		}
+	}
+
+	return 0;
+}
+
+static int qlcnic_83xx_poll_flash_status_reg(struct qlcnic_adapter *adapter)
+{
+	u32 status;
+	int err, retries = QLC_83XX_FLASH_READ_RETRY_COUNT;
+
+	do {
+		status = qlcnic_83xx_rd_reg_indirect(adapter,
+						     QLC_83XX_FLASH_STATUS,
+						     &err);
+		if ((status & QLC_83XX_FLASH_STATUS_READY) ==
+						QLC_83XX_FLASH_STATUS_READY)
+			break;
+
+		msleep(QLC_83XX_FLASH_STATUS_REG_POLL_DELAY);
+	} while (--retries);
+
+	if (!retries)
+		return -EIO;
+
+	return 0;
+}
+
+static int qlcnic_83xx_enable_flash_write_op(struct qlcnic_adapter *adapter)
+{
+	int ret;
+
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
+				     (QLC_83XX_FLASH_FDT_WRITE_DEF_SIG |
+				     adapter->ahw->fdt.write_statusreg_cmd));
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
+				     adapter->ahw->fdt.write_enable_bits);
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
+				     QLC_83XX_FLASH_SECOND_ERASE_MS_VAL);
+
+	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
+	if (ret)
+		return -EIO;
+
+	return 0;
+}
+
+static int qlcnic_83xx_disable_flash_write_op(struct qlcnic_adapter *adapter)
+{
+	int ret;
+
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
+				     (QLC_83XX_FLASH_FDT_WRITE_DEF_SIG |
+				     adapter->ahw->fdt.write_statusreg_cmd));
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
+				     adapter->ahw->fdt.write_enable_bits);
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
+				     QLC_83XX_FLASH_SECOND_ERASE_MS_VAL);
+
+	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
+	if (ret)
+		return -EIO;
+
+	return 0;
+}
+
+int qlcnic_83xx_read_flash_mfg_id(struct qlcnic_adapter *adapter)
+{
+	int ret, mfg_id;
+
+	if (qlcnic_83xx_lock_flash(adapter))
+		return -EIO;
+
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
+				     QLC_83XX_FLASH_FDT_READ_MFG_ID_VAL);
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
+				     QLC_83XX_FLASH_READ_CTRL);
+
+	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
+	if (ret) {
+		qlcnic_83xx_unlock_flash(adapter);
+		return -EIO;
+	}
+
+	mfg_id = qlcnic_83xx_rd_reg_indirect(adapter, QLC_83XX_FLASH_RDDATA,
+					     &ret);
+
+	adapter->flash_mfg_id = (mfg_id & 0xFF);
+	qlcnic_83xx_unlock_flash(adapter);
+
+	return 0;
+}
+
+int qlcnic_83xx_read_flash_descriptor_table(struct qlcnic_adapter *adapter)
+{
+	int count, fdt_size, ret = 0;
+
+	fdt_size = sizeof(struct qlcnic_fdt);
+	count = fdt_size/sizeof(u32);
+
+	if (qlcnic_83xx_lock_flash(adapter))
+		return -EIO;
+
+	memset(&adapter->ahw->fdt, 0, fdt_size);
+	ret = qlcnic_83xx_lockless_flash_read32(adapter, QLCNIC_FDT_LOCATION,
+						(u8 *)&adapter->ahw->fdt,
+						count);
+
+	qlcnic_83xx_unlock_flash(adapter);
+	return ret;
+}
+
+int qlcnic_83xx_erase_flash_sector(struct qlcnic_adapter *adapter,
+				   u32 sector_start_addr)
+{
+	u32 reversed_addr;
+	int ret = -EIO;
+
+	if (qlcnic_83xx_lock_flash(adapter) != 0)
+		return -EIO;
+
+	if (adapter->ahw->fdt.flash_manuf == adapter->flash_mfg_id) {
+		ret = qlcnic_83xx_enable_flash_write_op(adapter);
+		if (ret) {
+			qlcnic_83xx_unlock_flash(adapter);
+			dev_err(&adapter->pdev->dev,
+				"%s failed at %d\n",
+				__func__, __LINE__);
+			return ret;
+		}
+	}
+
+	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
+	if (ret) {
+		qlcnic_83xx_unlock_flash(adapter);
+		dev_err(&adapter->pdev->dev,
+			"%s: failed at %d\n", __func__, __LINE__);
+		return -EIO;
+	}
+
+	reversed_addr = (((sector_start_addr & 0xFF) << 16) |
+			((sector_start_addr & 0xFF0000) >> 16));
+
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
+				     reversed_addr);
+
+	if (adapter->ahw->fdt.flash_manuf == adapter->flash_mfg_id)
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
+					     (QLC_83XX_FLASH_FDT_ERASE_DEF_SIG |
+					     adapter->ahw->fdt.erase_cmd));
+	else
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
+					     QLC_83XX_FLASH_OEM_ERASE_SIG);
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
+				     QLC_83XX_FLASH_LAST_ERASE_MS_VAL);
+
+	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
+	if (ret) {
+		qlcnic_83xx_unlock_flash(adapter);
+		dev_err(&adapter->pdev->dev,
+			"%s: failed at %d\n", __func__, __LINE__);
+		return -EIO;
+	}
+
+	if (adapter->ahw->fdt.flash_manuf == adapter->flash_mfg_id) {
+		ret = qlcnic_83xx_disable_flash_write_op(adapter);
+		if (ret) {
+			qlcnic_83xx_unlock_flash(adapter);
+			dev_err(&adapter->pdev->dev,
+				"%s: failed at %d\n", __func__, __LINE__);
+			return ret;
+		}
+	}
+
+	qlcnic_83xx_unlock_flash(adapter);
+
+	return 0;
+}
+
+int qlcnic_83xx_flash_write32(struct qlcnic_adapter *adapter, u32 addr,
+			      u32 *p_data)
+{
+	int ret = -EIO;
+
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
+				     0x00800000 | (addr >> 2));
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA, *p_data);
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
+				     QLC_83XX_FLASH_LAST_ERASE_MS_VAL);
+	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
+	if (ret) {
+		dev_err(&adapter->pdev->dev,
+			"%s: failed at %d\n", __func__, __LINE__);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+int qlcnic_83xx_flash_bulk_write(struct qlcnic_adapter *adapter, u32 addr,
+				 u32 *p_data, int count)
+{
+	u32 temp;
+	int ret = -EIO, err;
+
+	if ((count <  QLC_83XX_FLASH_BULK_WRITE_MIN) ||
+	(count >  QLC_83XX_FLASH_BULK_WRITE_MAX)) {
+		dev_err(&adapter->pdev->dev,
+			"%s: Invalid word count\n", __func__);
+		return -EIO;
+	}
+
+	temp = qlcnic_83xx_rd_reg_indirect(adapter, QLC_83XX_FLASH_SPI_CONTROL,
+					   &err);
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_SPI_CONTROL,
+				     (temp | QLC_83XX_FLASH_SPI_CTRL));
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
+				     QLC_83XX_FLASH_ADDR_TEMP_VAL);
+
+	/* First DWORD write */
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA, *p_data++);
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
+				     QLC_83XX_FLASH_FIRST_MS_PATTERN);
+	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
+	if (ret) {
+		dev_err(&adapter->pdev->dev,
+			"%s: failed at %d\n", __func__, __LINE__);
+		return -EIO;
+	}
+
+	count--;
+
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
+				     QLC_83XX_FLASH_ADDR_SECOND_TEMP_VAL);
+
+	/* Second to N-1 DWORD writes */
+	while (count != 1) {
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
+					     *p_data++);
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
+					     QLC_83XX_FLASH_SECOND_MS_PATTERN);
+		ret = qlcnic_83xx_poll_flash_status_reg(adapter);
+		if (ret) {
+			dev_err(&adapter->pdev->dev,
+				"%s: failed at %d\n", __func__, __LINE__);
+			return -EIO;
+		}
+		count--;
+	}
+
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
+				     QLC_83XX_FLASH_ADDR_TEMP_VAL |
+				     (addr >> 2));
+	/* Last DWORD write */
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA, *p_data++);
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
+				     QLC_83XX_FLASH_LAST_MS_PATTERN);
+	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
+	if (ret) {
+		dev_err(&adapter->pdev->dev,
+			"%s: failed at %d\n", __func__, __LINE__);
+		return -EIO;
+	}
+
+	ret = qlcnic_83xx_rd_reg_indirect(adapter, QLC_83XX_FLASH_SPI_STATUS,
+					  &err);
+	if ((ret & QLC_83XX_FLASH_SPI_CTRL) ==
+	QLC_83XX_FLASH_SPI_CTRL) {
+		dev_err(&adapter->pdev->dev,
+			"%s: failed at %d\n", __func__, __LINE__);
+		/* Operation failed, clear error bit */
+		temp = qlcnic_83xx_rd_reg_indirect(adapter,
+						   QLC_83XX_FLASH_SPI_CONTROL,
+						   &err);
+		qlcnic_83xx_wrt_reg_indirect(adapter,
+					     QLC_83XX_FLASH_SPI_CONTROL,
+					     (temp | QLC_83XX_FLASH_SPI_CTRL));
+	}
+
+	return 0;
+}
+
+static int qlcnic_83xx_read_flash_status_reg(struct qlcnic_adapter *adapter)
+{
+	int ret, err;
+
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
+				     QLC_83XX_FLASH_OEM_READ_SIG);
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
+				     QLC_83XX_FLASH_READ_CTRL);
+	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
+	if (ret)
+		return -EIO;
+
+	ret = qlcnic_83xx_rd_reg_indirect(adapter, QLC_83XX_FLASH_RDDATA, &err);
+	return ret&0xFF;
+}
+
+int qlcnic_83xx_flash_test(struct qlcnic_adapter *adapter)
+{
+	int status;
+
+	status = qlcnic_83xx_read_flash_status_reg(adapter);
+	if (status == -EIO) {
+		dev_info(&adapter->pdev->dev, "%s: EEPROM test failed.\n",
+			 __func__);
+		return 1;
+	}
+	return 0;
+}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 895d223..1c2adb4 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -23,6 +23,47 @@ 
 #define QLC_83XX_INTX_TRGR		0x38C4
 #define QLC_83XX_INTX_MASK		0x38C8
 
+#define QLC_83XX_FLASH_SPI_STATUS      0x2808E010
+#define QLC_83XX_FLASH_SPI_CONTROL     0x2808E014
+#define QLC_83XX_FLASH_STATUS          0x42100004
+#define QLC_83XX_FLASH_CONTROL         0x42110004
+#define QLC_83XX_FLASH_ADDR            0x42110008
+#define QLC_83XX_FLASH_WRDATA          0x4211000C
+#define QLC_83XX_FLASH_RDDATA          0x42110018
+#define QLC_83XX_FLASH_DIRECT_WINDOW		0x42110030
+#define QLC_83XX_FLASH_DIRECT_DATA(DATA)	(0x42150000 | (0x0000FFFF&DATA))
+#define QLC_83XX_FLASH_SECTOR_ERASE_CMD	0xdeadbeef
+#define QLC_83XX_FLASH_WRITE_CMD		0xdacdacda
+#define QLC_83XX_FLASH_BULK_WRITE_CMD		0xcadcadca
+#define QLC_83XX_FLASH_READ_RETRY_COUNT	5000
+#define QLC_83XX_FLASH_STATUS_READY		0x6
+#define QLC_83XX_FLASH_BULK_WRITE_MIN		2
+#define QLC_83XX_FLASH_BULK_WRITE_MAX		64
+#define QLC_83XX_FLASH_STATUS_REG_POLL_DELAY	1
+#define QLC_83XX_ERASE_MODE			1
+#define QLC_83XX_WRITE_MODE			2
+#define QLC_83XX_BULK_WRITE_MODE		3
+#define QLC_83XX_FLASH_FDT_WRITE_DEF_SIG	0xFD0100
+#define QLC_83XX_FLASH_FDT_ERASE_DEF_SIG	0xFD0300
+#define QLC_83XX_FLASH_FDT_READ_MFG_ID_VAL	0xFD009F
+#define QLC_83XX_FLASH_OEM_ERASE_SIG		0xFD03D8
+#define QLC_83XX_FLASH_OEM_WRITE_SIG		0xFD0101
+#define QLC_83XX_FLASH_OEM_READ_SIG		0xFD0005
+#define QLC_83XX_FLASH_ADDR_TEMP_VAL		0x00800000
+#define QLC_83XX_FLASH_ADDR_SECOND_TEMP_VAL	0x00800001
+#define QLC_83XX_FLASH_WRDATA_DEF		0x0
+#define QLC_83XX_FLASH_READ_CTRL               0x3F
+#define QLC_83XX_FLASH_SPI_CTRL		0x4
+#define QLC_83XX_FLASH_FIRST_ERASE_MS_VAL	0x2
+#define QLC_83XX_FLASH_SECOND_ERASE_MS_VAL	0x5
+#define QLC_83XX_FLASH_LAST_ERASE_MS_VAL	0x3D
+#define QLC_83XX_FLASH_FIRST_MS_PATTERN	0x43
+#define QLC_83XX_FLASH_SECOND_MS_PATTERN	0x7F
+#define QLC_83XX_FLASH_LAST_MS_PATTERN		0x7D
+#define QLC_83xx_FLASH_MAX_WAIT_USEC		100
+#define QLC_83XX_FLASH_LOCK_TIMEOUT		10000
+
+
 #define QLC_83XX_DRV_LOCK_WAIT_COUNTER	100
 #define QLC_83XX_DRV_LOCK_WAIT_DELAY	20
 #define QLC_83XX_NEED_DRV_LOCK_RECOVERY	1
@@ -394,4 +435,14 @@  void qlcnic_83xx_free_mbx_intr(struct qlcnic_adapter *);
 void qlcnic_83xx_register_map(struct qlcnic_hardware_context *);
 void qlcnic_83xx_idc_aen_work(struct work_struct *);
 void qlcnic_83xx_config_ipaddr(struct qlcnic_adapter *, __be32, int);
+
+int qlcnic_83xx_erase_flash_sector(struct qlcnic_adapter *, u32);
+int qlcnic_83xx_flash_bulk_write(struct qlcnic_adapter *, u32, u32 *, int);
+int qlcnic_83xx_flash_write32(struct qlcnic_adapter *, u32, u32 *);
+int qlcnic_83xx_lock_flash(struct qlcnic_adapter *);
+void qlcnic_83xx_unlock_flash(struct qlcnic_adapter *);
+int qlcnic_83xx_save_flash_status(struct qlcnic_adapter *);
+int qlcnic_83xx_restore_flash_status(struct qlcnic_adapter *, int);
+int qlcnic_83xx_read_flash_mfg_id(struct qlcnic_adapter *);
+int qlcnic_83xx_read_flash_descriptor_table(struct qlcnic_adapter *);
 #endif