projects / oweals / openwrt.git / blobdiff
? search:
summary | shortlog | log | commit | commitdiff | tree
raw | inline | side by side
kernel: rename CONFIG_TRACE_ENUM_MAP_FILE to CONFIG_TRACE_EVAL_MAP_FILE
[oweals/openwrt.git] / target / linux / ipq806x / patches-4.9 / 861-qcom-mtd-nand-Added-bam-transaction-and-support-addi.patch
diff --git a/target/linux/ipq806x/patches-4.9/861-qcom-mtd-nand-Added-bam-transaction-and-support-addi.patch b/target/linux/ipq806x/patches-4.9/861-qcom-mtd-nand-Added-bam-transaction-and-support-addi.patch
index 84f90b48d609cae0b5094e9d0c74c2501d517a4f..4b9f672205ed06772f3393c6580e6f15af930f76 100644 (file)
--- a/target/linux/ipq806x/patches-4.9/861-qcom-mtd-nand-Added-bam-transaction-and-support-addi.patch
+++ b/target/linux/ipq806x/patches-4.9/861-qcom-mtd-nand-Added-bam-transaction-and-support-addi.patch
@@ -45,7 +45,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
  /* dummy register offsets, used by write_reg_dma */
  #define       NAND_DEV_CMD1_RESTORE           0xdead
-@@ -131,6 +134,11 @@
+@@ -135,6 +138,11 @@
  #define       ERASED_PAGE                     (PAGE_ALL_ERASED | PAGE_ERASED)
  #define       ERASED_CW                       (CODEWORD_ALL_ERASED | CODEWORD_ERASED)
  
@@ -57,9 +57,9 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  /* Version Mask */
  #define       NAND_VERSION_MAJOR_MASK         0xf0000000
  #define       NAND_VERSION_MAJOR_SHIFT        28
-@@ -148,6 +156,9 @@
- #define       FETCH_ID                        0xb
- #define       RESET_DEVICE                    0xd
+@@ -156,6 +164,9 @@
+ #define NAND_DEV_CMD_VLD_VAL          (READ_START_VLD | WRITE_START_VLD | \
+                                        ERASE_START_VLD | SEQ_READ_START_VLD)
  
 +/* NAND_CTRL bits */
 +#define        BAM_MODE_EN                     BIT(0)
@@ -67,7 +67,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  /*
   * the NAND controller performs reads/writes with ECC in 516 byte chunks.
   * the driver calls the chunks 'step' or 'codeword' interchangeably
-@@ -169,12 +180,77 @@
+@@ -177,12 +188,77 @@
  #define       ECC_BCH_4BIT    BIT(2)
  #define       ECC_BCH_8BIT    BIT(3)
  
@@ -145,7 +145,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  };
  
  /*
-@@ -202,6 +278,13 @@ struct nandc_regs {
+@@ -210,6 +286,13 @@ struct nandc_regs {
        __le32 orig_vld;
  
        __le32 ecc_buf_cfg;
@@ -159,7 +159,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  };
  
  /*
-@@ -217,6 +300,7 @@ struct nandc_regs {
+@@ -225,6 +308,7 @@ struct nandc_regs {
   * @aon_clk:                  another controller clock
   *
   * @chan:                     dma channel
@@ -167,7 +167,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
   * @cmd_crci:                 ADM DMA CRCI for command flow control
   * @data_crci:                        ADM DMA CRCI for data flow control
   * @desc_list:                        DMA descriptor list (list of desc_infos)
-@@ -242,6 +326,7 @@ struct nandc_regs {
+@@ -250,6 +334,7 @@ struct nandc_regs {
  struct qcom_nand_controller {
        struct nand_hw_control controller;
        struct list_head host_list;
@@ -175,7 +175,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        struct device *dev;
  
-@@ -342,6 +427,45 @@ struct qcom_nand_driver_data {
+@@ -350,6 +435,45 @@ struct qcom_nand_driver_data {
        bool dma_bam_enabled;
  };
  
@@ -221,7 +221,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  static inline struct qcom_nand_host *to_qcom_nand_host(struct nand_chip *chip)
  {
        return container_of(chip, struct qcom_nand_host, chip);
-@@ -398,6 +522,16 @@ static __le32 *offset_to_nandc_reg(struc
+@@ -406,6 +530,16 @@ static __le32 *offset_to_nandc_reg(struc
                return &regs->orig_vld;
        case NAND_EBI2_ECC_BUF_CFG:
                return &regs->ecc_buf_cfg;
@@ -238,7 +238,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        default:
                return NULL;
        }
-@@ -439,7 +573,7 @@ static void update_rw_regs(struct qcom_n
+@@ -447,7 +581,7 @@ static void update_rw_regs(struct qcom_n
  {
        struct nand_chip *chip = &host->chip;
        struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
@@ -247,7 +247,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        if (read) {
                if (host->use_ecc)
-@@ -456,12 +590,20 @@ static void update_rw_regs(struct qcom_n
+@@ -464,12 +598,20 @@ static void update_rw_regs(struct qcom_n
  
                cfg1 = host->cfg1;
                ecc_bch_cfg = host->ecc_bch_cfg;
@@ -268,7 +268,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        }
  
        nandc_set_reg(nandc, NAND_FLASH_CMD, cmd);
-@@ -472,8 +614,104 @@ static void update_rw_regs(struct qcom_n
+@@ -480,8 +622,104 @@ static void update_rw_regs(struct qcom_n
        nandc_set_reg(nandc, NAND_FLASH_STATUS, host->clrflashstatus);
        nandc_set_reg(nandc, NAND_READ_STATUS, host->clrreadstatus);
        nandc_set_reg(nandc, NAND_EXEC_CMD, 1);
@@ -373,7 +373,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  static int prep_dma_desc(struct qcom_nand_controller *nandc, bool read,
                         int reg_off, const void *vaddr, int size,
                         bool flow_control)
-@@ -552,7 +790,7 @@ err:
+@@ -560,7 +798,7 @@ err:
   * @num_regs:         number of registers to read
   */
  static int read_reg_dma(struct qcom_nand_controller *nandc, int first,
@@ -382,7 +382,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  {
        bool flow_control = false;
        void *vaddr;
-@@ -561,10 +799,18 @@ static int read_reg_dma(struct qcom_nand
+@@ -569,10 +807,18 @@ static int read_reg_dma(struct qcom_nand
        if (first == NAND_READ_ID || first == NAND_FLASH_STATUS)
                flow_control = true;
  
@@ -402,7 +402,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        return prep_dma_desc(nandc, true, first, vaddr, size, flow_control);
  }
  
-@@ -576,7 +822,7 @@ static int read_reg_dma(struct qcom_nand
+@@ -584,7 +830,7 @@ static int read_reg_dma(struct qcom_nand
   * @num_regs:         number of registers to write
   */
  static int write_reg_dma(struct qcom_nand_controller *nandc, int first,
@@ -411,7 +411,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  {
        bool flow_control = false;
        struct nandc_regs *regs = nandc->regs;
-@@ -588,12 +834,29 @@ static int write_reg_dma(struct qcom_nan
+@@ -596,12 +842,29 @@ static int write_reg_dma(struct qcom_nan
        if (first == NAND_FLASH_CMD)
                flow_control = true;
  
@@ -441,7 +441,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        size = num_regs * sizeof(u32);
  
        return prep_dma_desc(nandc, false, first, vaddr, size, flow_control);
-@@ -608,8 +871,12 @@ static int write_reg_dma(struct qcom_nan
+@@ -616,8 +879,12 @@ static int write_reg_dma(struct qcom_nan
   * @size:             DMA transaction size in bytes
   */
  static int read_data_dma(struct qcom_nand_controller *nandc, int reg_off,
@@ -455,7 +455,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        return prep_dma_desc(nandc, true, reg_off, vaddr, size, false);
  }
  
-@@ -622,8 +889,12 @@ static int read_data_dma(struct qcom_nan
+@@ -630,8 +897,12 @@ static int read_data_dma(struct qcom_nan
   * @size:             DMA transaction size in bytes
   */
  static int write_data_dma(struct qcom_nand_controller *nandc, int reg_off,
@@ -469,7 +469,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        return prep_dma_desc(nandc, false, reg_off, vaddr, size, false);
  }
  
-@@ -633,14 +904,57 @@ static int write_data_dma(struct qcom_na
+@@ -641,14 +912,57 @@ static int write_data_dma(struct qcom_na
   */
  static void config_cw_read(struct qcom_nand_controller *nandc)
  {
@@ -533,7 +533,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  }
  
  /*
-@@ -649,19 +963,20 @@ static void config_cw_read(struct qcom_n
+@@ -657,19 +971,20 @@ static void config_cw_read(struct qcom_n
   */
  static void config_cw_write_pre(struct qcom_nand_controller *nandc)
  {
@@ -561,7 +561,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  }
  
  /*
-@@ -675,6 +990,8 @@ static int nandc_param(struct qcom_nand_
+@@ -683,6 +998,8 @@ static int nandc_param(struct qcom_nand_
        struct nand_chip *chip = &host->chip;
        struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
  
@@ -570,7 +570,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        /*
         * NAND_CMD_PARAM is called before we know much about the FLASH chip
         * in use. we configure the controller to perform a raw read of 512
-@@ -708,9 +1025,13 @@ static int nandc_param(struct qcom_nand_
+@@ -715,9 +1032,13 @@ static int nandc_param(struct qcom_nand_
  
        nandc_set_reg(nandc, NAND_DEV_CMD1_RESTORE, nandc->cmd1);
        nandc_set_reg(nandc, NAND_DEV_CMD_VLD_RESTORE, nandc->vld);
@@ -586,7 +586,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        nandc->buf_count = 512;
        memset(nandc->data_buffer, 0xff, nandc->buf_count);
-@@ -718,11 +1039,12 @@ static int nandc_param(struct qcom_nand_
+@@ -725,11 +1046,12 @@ static int nandc_param(struct qcom_nand_
        config_cw_read(nandc);
  
        read_data_dma(nandc, FLASH_BUF_ACC, nandc->data_buffer,
@@ -602,7 +602,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        return 0;
  }
-@@ -733,6 +1055,8 @@ static int erase_block(struct qcom_nand_
+@@ -740,6 +1062,8 @@ static int erase_block(struct qcom_nand_
        struct nand_chip *chip = &host->chip;
        struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
  
@@ -611,7 +611,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        nandc_set_reg(nandc, NAND_FLASH_CMD,
                      BLOCK_ERASE | PAGE_ACC | LAST_PAGE);
        nandc_set_reg(nandc, NAND_ADDR0, page_addr);
-@@ -744,14 +1068,15 @@ static int erase_block(struct qcom_nand_
+@@ -751,14 +1075,15 @@ static int erase_block(struct qcom_nand_
        nandc_set_reg(nandc, NAND_FLASH_STATUS, host->clrflashstatus);
        nandc_set_reg(nandc, NAND_READ_STATUS, host->clrreadstatus);
  
@@ -633,7 +633,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        return 0;
  }
-@@ -765,16 +1090,19 @@ static int read_id(struct qcom_nand_host
+@@ -772,16 +1097,19 @@ static int read_id(struct qcom_nand_host
        if (column == -1)
                return 0;
  
@@ -657,7 +657,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        return 0;
  }
-@@ -785,28 +1113,108 @@ static int reset(struct qcom_nand_host *
+@@ -792,28 +1120,108 @@ static int reset(struct qcom_nand_host *
        struct nand_chip *chip = &host->chip;
        struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
  
@@ -771,7 +771,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        return 0;
  }
-@@ -817,7 +1225,16 @@ static void free_descs(struct qcom_nand_
+@@ -824,7 +1232,16 @@ static void free_descs(struct qcom_nand_
  
        list_for_each_entry_safe(desc, n, &nandc->desc_list, node) {
                list_del(&desc->node);
@@ -789,7 +789,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
                kfree(desc);
        }
  }
-@@ -1128,6 +1545,9 @@ static int read_page_ecc(struct qcom_nan
+@@ -1135,6 +1552,9 @@ static int read_page_ecc(struct qcom_nan
        struct nand_ecc_ctrl *ecc = &chip->ecc;
        int i, ret;
  
@@ -799,7 +799,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        /* queue cmd descs for each codeword */
        for (i = 0; i < ecc->steps; i++) {
                int data_size, oob_size;
-@@ -1141,11 +1561,36 @@ static int read_page_ecc(struct qcom_nan
+@@ -1148,11 +1568,36 @@ static int read_page_ecc(struct qcom_nan
                        oob_size = host->ecc_bytes_hw + host->spare_bytes;
                }
  
@@ -838,7 +838,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
                /*
                 * when ecc is enabled, the controller doesn't read the real
-@@ -1161,7 +1606,7 @@ static int read_page_ecc(struct qcom_nan
+@@ -1168,7 +1613,7 @@ static int read_page_ecc(struct qcom_nan
                                *oob_buf++ = 0xff;
  
                        read_data_dma(nandc, FLASH_BUF_ACC + data_size,
@@ -847,7 +847,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
                }
  
                if (data_buf)
-@@ -1200,10 +1645,14 @@ static int copy_last_cw(struct qcom_nand
+@@ -1207,10 +1652,14 @@ static int copy_last_cw(struct qcom_nand
  
        set_address(host, host->cw_size * (ecc->steps - 1), page);
        update_rw_regs(host, 1, true);
@@ -863,7 +863,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        ret = submit_descs(nandc);
        if (ret)
-@@ -1226,6 +1675,7 @@ static int qcom_nandc_read_page(struct m
+@@ -1233,6 +1682,7 @@ static int qcom_nandc_read_page(struct m
        data_buf = buf;
        oob_buf = oob_required ? chip->oob_poi : NULL;
  
@@ -871,7 +871,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        ret = read_page_ecc(host, data_buf, oob_buf);
        if (ret) {
                dev_err(nandc->dev, "failure to read page\n");
-@@ -1245,13 +1695,19 @@ static int qcom_nandc_read_page_raw(stru
+@@ -1252,13 +1702,19 @@ static int qcom_nandc_read_page_raw(stru
        u8 *data_buf, *oob_buf;
        struct nand_ecc_ctrl *ecc = &chip->ecc;
        int i, ret;
@@ -891,7 +891,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        for (i = 0; i < ecc->steps; i++) {
                int data_size1, data_size2, oob_size1, oob_size2;
                int reg_off = FLASH_BUF_ACC;
-@@ -1269,21 +1725,49 @@ static int qcom_nandc_read_page_raw(stru
+@@ -1276,21 +1732,49 @@ static int qcom_nandc_read_page_raw(stru
                        oob_size2 = host->ecc_bytes_hw + host->spare_bytes;
                }
  
@@ -946,7 +946,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
                oob_buf += oob_size2;
        }
  
-@@ -1306,6 +1790,7 @@ static int qcom_nandc_read_oob(struct mt
+@@ -1313,6 +1797,7 @@ static int qcom_nandc_read_oob(struct mt
        int ret;
  
        clear_read_regs(nandc);
@@ -954,7 +954,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        host->use_ecc = true;
        set_address(host, 0, page);
-@@ -1329,6 +1814,7 @@ static int qcom_nandc_write_page(struct
+@@ -1336,6 +1821,7 @@ static int qcom_nandc_write_page(struct
        int i, ret;
  
        clear_read_regs(nandc);
@@ -962,7 +962,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        data_buf = (u8 *)buf;
        oob_buf = chip->oob_poi;
-@@ -1350,7 +1836,8 @@ static int qcom_nandc_write_page(struct
+@@ -1357,7 +1843,8 @@ static int qcom_nandc_write_page(struct
  
                config_cw_write_pre(nandc);
  
@@ -972,7 +972,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
                /*
                 * when ECC is enabled, we don't really need to write anything
-@@ -1363,7 +1850,7 @@ static int qcom_nandc_write_page(struct
+@@ -1370,7 +1857,7 @@ static int qcom_nandc_write_page(struct
                        oob_buf += host->bbm_size;
  
                        write_data_dma(nandc, FLASH_BUF_ACC + data_size,
@@ -981,7 +981,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
                }
  
                config_cw_write_post(nandc);
-@@ -1393,6 +1880,7 @@ static int qcom_nandc_write_page_raw(str
+@@ -1400,6 +1887,7 @@ static int qcom_nandc_write_page_raw(str
        int i, ret;
  
        clear_read_regs(nandc);
@@ -989,7 +989,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        data_buf = (u8 *)buf;
        oob_buf = chip->oob_poi;
-@@ -1419,19 +1907,22 @@ static int qcom_nandc_write_page_raw(str
+@@ -1426,19 +1914,22 @@ static int qcom_nandc_write_page_raw(str
  
                config_cw_write_pre(nandc);
  
@@ -1016,7 +1016,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
                oob_buf += oob_size2;
  
                config_cw_write_post(nandc);
-@@ -1467,6 +1958,7 @@ static int qcom_nandc_write_oob(struct m
+@@ -1474,6 +1965,7 @@ static int qcom_nandc_write_oob(struct m
  
        host->use_ecc = true;
  
@@ -1024,7 +1024,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        ret = copy_last_cw(host, page);
        if (ret)
                return ret;
-@@ -1486,7 +1978,7 @@ static int qcom_nandc_write_oob(struct m
+@@ -1493,7 +1985,7 @@ static int qcom_nandc_write_oob(struct m
  
        config_cw_write_pre(nandc);
        write_data_dma(nandc, FLASH_BUF_ACC, nandc->data_buffer,
@@ -1033,7 +1033,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        config_cw_write_post(nandc);
  
        ret = submit_descs(nandc);
-@@ -1524,6 +2016,7 @@ static int qcom_nandc_block_bad(struct m
+@@ -1531,6 +2023,7 @@ static int qcom_nandc_block_bad(struct m
         */
        host->use_ecc = false;
  
@@ -1041,7 +1041,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        ret = copy_last_cw(host, page);
        if (ret)
                goto err;
-@@ -1554,6 +2047,7 @@ static int qcom_nandc_block_markbad(stru
+@@ -1561,6 +2054,7 @@ static int qcom_nandc_block_markbad(stru
        int page, ret, status = 0;
  
        clear_read_regs(nandc);
@@ -1049,7 +1049,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        /*
         * to mark the BBM as bad, we flash the entire last codeword with 0s.
-@@ -1570,7 +2064,8 @@ static int qcom_nandc_block_markbad(stru
+@@ -1577,7 +2071,8 @@ static int qcom_nandc_block_markbad(stru
        update_rw_regs(host, 1, false);
  
        config_cw_write_pre(nandc);
@@ -1059,7 +1059,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        config_cw_write_post(nandc);
  
        ret = submit_descs(nandc);
-@@ -1930,6 +2425,8 @@ static int qcom_nand_host_setup(struct q
+@@ -1937,6 +2432,8 @@ static int qcom_nand_host_setup(struct q
  
        host->clrflashstatus = FS_READY_BSY_N;
        host->clrreadstatus = 0xc0;
@@ -1068,7 +1068,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
  
        dev_dbg(nandc->dev,
                "cfg0 %x cfg1 %x ecc_buf_cfg %x ecc_bch cfg %x cw_size %d cw_data %d strength %d parity_bytes %d steps %d\n",
-@@ -2008,6 +2505,12 @@ static int qcom_nandc_alloc(struct qcom_
+@@ -2015,6 +2512,12 @@ static int qcom_nandc_alloc(struct qcom_
                        dev_err(nandc->dev, "failed to request cmd channel\n");
                        return -ENODEV;
                }
@@ -1081,7 +1081,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        }
  
        INIT_LIST_HEAD(&nandc->desc_list);
-@@ -2043,6 +2546,9 @@ static void qcom_nandc_unalloc(struct qc
+@@ -2050,6 +2553,9 @@ static void qcom_nandc_unalloc(struct qc
                        devm_kfree(nandc->dev, nandc->reg_read_buf);
        }
  
@@ -1091,7 +1091,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
        if (nandc->regs)
                devm_kfree(nandc->dev, nandc->regs);
  
-@@ -2053,11 +2559,18 @@ static void qcom_nandc_unalloc(struct qc
+@@ -2060,12 +2566,19 @@ static void qcom_nandc_unalloc(struct qc
  /* one time setup of a few nand controller registers */
  static int qcom_nandc_setup(struct qcom_nand_controller *nandc)
  {
@@ -1099,6 +1099,7 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
 +
        /* kill onenand */
        nandc_write(nandc, SFLASHC_BURST_CFG, 0);
+       nandc_write(nandc, NAND_DEV_CMD_VLD, NAND_DEV_CMD_VLD_VAL);
  
 -      /* enable ADM DMA */
 -      nandc_write(nandc, NAND_FLASH_CHIP_SELECT, DM_EN);
Unnamed repository; edit this file 'description' to name the repository.