}
}
-/**
- * qla2x00_release_nvram_protection() -
- * @ha: HA context
- */
-void
-qla2x00_release_nvram_protection(scsi_qla_host_t *ha)
-{
- struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
- uint32_t word;
-
- /* 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(®->nvram, NVR_SELECT);
- do {
- NVRAM_DELAY();
- word = RD_REG_WORD(®->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.
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);
+ 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(®->nvram, NVR_SELECT);
+ do {
+ NVRAM_DELAY();
+ word = RD_REG_WORD(®->nvram);
+ if (!--tmo) {
+ ret = QLA_FUNCTION_FAILED;
+ break;
+ }
+ } 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);
+
+ return ret;
+}
+
/**
* qla2x00_nvram_request() - Sends read command to NVRAM and gets data from
* NVRAM.
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(®->nvram, NVR_SELECT);
+ do {
+ NVRAM_DELAY();
+ word = RD_REG_WORD(®->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(®->nvram, NVR_SELECT);
+ do {
+ NVRAM_DELAY();
+ word = RD_REG_WORD(®->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(®->flash_addr, addr & ~FARX_DATA_FLAG);
+ /* Wait for READ cycle to complete. */
+ rval = QLA_SUCCESS;
+ for (cnt = 3000;
+ (RD_REG_DWORD(®->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(®->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;
+ struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+ /* Pause RISC. */
+ WRT_REG_DWORD(®->hccr, HCCRX_SET_RISC_PAUSE);
+ RD_REG_DWORD(®->hccr); /* PCI Posting. */
+
+ /* 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)));
+
+ /* Release RISC pause. */
+ WRT_REG_DWORD(®->hccr, HCCRX_REL_RISC_PAUSE);
+ RD_REG_DWORD(®->hccr); /* PCI Posting. */
+
+ 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(®->flash_data, data);
+ RD_REG_DWORD(®->flash_data); /* PCI Posting. */
+ WRT_REG_DWORD(®->flash_addr, addr | FARX_DATA_FLAG);
+ /* Wait for Write cycle to complete. */
+ rval = QLA_SUCCESS;
+ for (cnt = 500000; (RD_REG_DWORD(®->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;
+
+ /* Pause RISC. */
+ WRT_REG_DWORD(®->hccr, HCCRX_SET_RISC_PAUSE);
+ RD_REG_DWORD(®->hccr); /* PCI Posting. */
+
+ 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(®->ctrl_status,
+ RD_REG_DWORD(®->ctrl_status) | CSRX_FLASH_ENABLE);
+ RD_REG_DWORD(®->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);
+
+ /* Disable flash write. */
+ WRT_REG_DWORD(®->ctrl_status,
+ RD_REG_DWORD(®->ctrl_status) & ~CSRX_FLASH_ENABLE);
+ RD_REG_DWORD(®->ctrl_status); /* PCI Posting. */
+
+ /* Release RISC pause. */
+ WRT_REG_DWORD(®->hccr, HCCRX_REL_RISC_PAUSE);
+ RD_REG_DWORD(®->hccr); /* 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;
+ struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+ /* Pause RISC. */
+ WRT_REG_DWORD(®->hccr, HCCRX_SET_RISC_PAUSE);
+ RD_REG_DWORD(®->hccr); /* PCI Posting. */
+
+ /* 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)));
+
+ /* Release RISC pause. */
+ WRT_REG_DWORD(®->hccr, HCCRX_REL_RISC_PAUSE);
+ RD_REG_DWORD(®->hccr); /* PCI Posting. */
+
+ 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;
+
+ /* Pause RISC. */
+ WRT_REG_DWORD(®->hccr, HCCRX_SET_RISC_PAUSE);
+ RD_REG_DWORD(®->hccr); /* PCI Posting. */
+
+ /* Enable flash write. */
+ WRT_REG_DWORD(®->ctrl_status,
+ RD_REG_DWORD(®->ctrl_status) | CSRX_FLASH_ENABLE);
+ RD_REG_DWORD(®->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(®->ctrl_status,
+ RD_REG_DWORD(®->ctrl_status) & ~CSRX_FLASH_ENABLE);
+ RD_REG_DWORD(®->ctrl_status); /* PCI Posting. */
+
+ /* Release RISC pause. */
+ WRT_REG_DWORD(®->hccr, HCCRX_REL_RISC_PAUSE);
+ RD_REG_DWORD(®->hccr); /* PCI Posting. */
+
+ return ret;
+}
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff