[SCSI] qla2xxx: Add support for new flash part.
Ravi Anand [Wed, 17 May 2006 22:08:49 +0000 (15:08 -0700)]
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/qla2xxx/qla_def.h
drivers/scsi/qla2xxx/qla_sup.c

index 53508f3..4881242 100644 (file)
@@ -270,6 +270,8 @@ struct device_reg_2xxx {
 #define NVR_SELECT             BIT_1
 #define NVR_CLOCK              BIT_0
 
+#define NVR_WAIT_CNT           20000
+
        union {
                struct {
                        uint16_t mailbox0;
index 8b0121d..c71dbd5 100644 (file)
@@ -97,7 +97,7 @@ qla2x00_write_nvram_word(scsi_qla_host_t *ha, uint32_t addr, uint16_t data)
 {
        int count;
        uint16_t word;
-       uint32_t nv_cmd;
+       uint32_t nv_cmd, wait_cnt;
        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 
        qla2x00_nv_write(ha, NVR_DATA_OUT);
@@ -127,7 +127,13 @@ 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. */
+       wait_cnt = NVR_WAIT_CNT;
        do {
+               if (!--wait_cnt) {
+                       DEBUG9_10(printk("%s(%ld): NVRAM didn't go ready...\n",
+                           __func__, ha->host_no));
+                       break;
+               }
                NVRAM_DELAY();
                word = RD_REG_WORD(&reg->nvram);
        } while ((word & NVR_DATA_IN) == 0);
@@ -301,16 +307,17 @@ qla2x00_clear_nvram_protection(scsi_qla_host_t *ha)
 {
        int ret, stat;
        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
-       uint32_t word;
+       uint32_t word, wait_cnt;
        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,
+
+       wprot_old = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base));
+       stat = qla2x00_write_nvram_word_tmo(ha, ha->nvram_base,
            __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)) {
+       wprot = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base));
+       if (stat != QLA_SUCCESS || wprot != 0x1234) {
                /* Write enable. */
                qla2x00_nv_write(ha, NVR_DATA_OUT);
                qla2x00_nv_write(ha, 0);
@@ -341,14 +348,22 @@ qla2x00_clear_nvram_protection(scsi_qla_host_t *ha)
                /* Wait for NVRAM to become ready. */
                WRT_REG_WORD(&reg->nvram, NVR_SELECT);
                RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
+               wait_cnt = NVR_WAIT_CNT;
                do {
+                       if (!--wait_cnt) {
+                               DEBUG9_10(printk("%s(%ld): NVRAM didn't go "
+                                   "ready...\n", __func__,
+                                   ha->host_no));
+                               break;
+                       }
                        NVRAM_DELAY();
                        word = RD_REG_WORD(&reg->nvram);
                } while ((word & NVR_DATA_IN) == 0);
 
-               ret = QLA_SUCCESS;
+               if (wait_cnt)
+                       ret = QLA_SUCCESS;
        } else
-               qla2x00_write_nvram_word(ha, 0, wprot_old);
+               qla2x00_write_nvram_word(ha, ha->nvram_base, wprot_old);
 
        return ret;
 }
@@ -357,7 +372,7 @@ 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;
+       uint32_t word, wait_cnt;
 
        if (stat != QLA_SUCCESS)
                return;
@@ -393,7 +408,13 @@ qla2x00_set_nvram_protection(scsi_qla_host_t *ha, int stat)
        /* Wait for NVRAM to become ready. */
        WRT_REG_WORD(&reg->nvram, NVR_SELECT);
        RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
+       wait_cnt = NVR_WAIT_CNT;
        do {
+               if (!--wait_cnt) {
+                       DEBUG9_10(printk("%s(%ld): NVRAM didn't go ready...\n",
+                           __func__, ha->host_no));
+                       break;
+               }
                NVRAM_DELAY();
                word = RD_REG_WORD(&reg->nvram);
        } while ((word & NVR_DATA_IN) == 0);
@@ -500,6 +521,20 @@ qla24xx_get_flash_manufacturer(scsi_qla_host_t *ha, uint8_t *man_id,
        ids = qla24xx_read_flash_dword(ha, flash_data_to_access_addr(0xd03ab));
        *man_id = LSB(ids);
        *flash_id = MSB(ids);
+
+       /* Check if man_id and flash_id are valid. */
+       if (ids != 0xDEADDEAD && (*man_id == 0 || *flash_id == 0)) {
+               /* Read information using 0x9f opcode
+                * Device ID, Mfg ID would be read in the format:
+                *   <Ext Dev Info><Device ID Part2><Device ID Part 1><Mfg ID>
+                * Example: ATMEL 0x00 01 45 1F
+                * Extract MFG and Dev ID from last two bytes.
+                */
+               ids = qla24xx_read_flash_dword(ha,
+                   flash_data_to_access_addr(0xd009f));
+               *man_id = LSB(ids);
+               *flash_id = MSB(ids);
+       }
 }
 
 int
@@ -508,8 +543,8 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr,
 {
        int ret;
        uint32_t liter;
-       uint32_t sec_mask, rest_addr, conf_addr;
-       uint32_t fdata;
+       uint32_t sec_mask, rest_addr, conf_addr, sec_end_mask;
+       uint32_t fdata, findex ;
        uint8_t man_id, flash_id;
        struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 
@@ -519,6 +554,7 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr,
        DEBUG9(printk("%s(%ld): Flash man_id=%d flash_id=%d\n", __func__,
            ha->host_no, man_id, flash_id));
 
+       sec_end_mask = 0;
        conf_addr = flash_conf_to_access_addr(0x03d8);
        switch (man_id) {
        case 0xbf: /* STT flash. */
@@ -531,6 +567,12 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr,
                rest_addr = 0x3fff;
                sec_mask = 0x3c000;
                break;
+       case 0x1f: // Atmel 26DF081A
+               rest_addr = 0x0fff;
+               sec_mask = 0xff000;
+               sec_end_mask = 0x003ff;
+               conf_addr = flash_conf_to_access_addr(0x0320);
+               break;
        default:
                /* Default to 64 kb sector size. */
                rest_addr = 0x3fff;
@@ -545,11 +587,30 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr,
 
        /* Disable flash write-protection. */
        qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0);
+       /* Some flash parts need an additional zero-write to clear bits.*/
+       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++) {
+                       if (man_id == 0x1f) {
+                               findex = faddr << 2;
+                               fdata = findex & sec_mask;
+                       } else {
+                               findex = faddr;
+                               fdata = (findex & sec_mask) << 2;
+                       }
+
                        /* Are we at the beginning of a sector? */
-                       if ((faddr & rest_addr) == 0) {
+                       if ((findex & rest_addr) == 0) {
+                               /*
+                                * Do sector unprotect at 4K boundry for Atmel
+                                * part.
+                                */
+                               if (man_id == 0x1f)
+                                       qla24xx_write_flash_dword(ha,
+                                           flash_conf_to_access_addr(0x0339),
+                                           (fdata & 0xff00) | ((fdata << 16) &
+                                           0xff0000) | ((fdata >> 16) & 0xff));
                                fdata = (faddr & sec_mask) << 2;
                                ret = qla24xx_write_flash_dword(ha, conf_addr,
                                    (fdata & 0xff00) |((fdata << 16) &
@@ -570,6 +631,14 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr,
                                    ha->host_no, faddr, *dwptr));
                                break;
                        }
+
+                       /* Do sector protect at 4K boundry for Atmel part. */
+                       if (man_id == 0x1f &&
+                           ((faddr & sec_end_mask) == 0x3ff))
+                               qla24xx_write_flash_dword(ha,
+                                   flash_conf_to_access_addr(0x0336),
+                                   (fdata & 0xff00) | ((fdata << 16) &
+                                   0xff0000) | ((fdata >> 16) & 0xff));
                }
        } while (0);