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mtd: spinand: Add spinand_init_flash() helper
Add spinand_init_flash() helper which implement all needed init for future SPI-NAND resume ops. Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20210602094913.26472-3-patrice.chotard@foss.st.com
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@ -1086,12 +1086,55 @@ static int spinand_detect(struct spinand_device *spinand)
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return 0;
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}
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static int spinand_init_flash(struct spinand_device *spinand)
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{
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struct device *dev = &spinand->spimem->spi->dev;
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struct nand_device *nand = spinand_to_nand(spinand);
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int ret, i;
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ret = spinand_read_cfg(spinand);
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if (ret)
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return ret;
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ret = spinand_init_quad_enable(spinand);
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if (ret)
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return ret;
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ret = spinand_upd_cfg(spinand, CFG_OTP_ENABLE, 0);
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if (ret)
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return ret;
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ret = spinand_manufacturer_init(spinand);
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if (ret) {
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dev_err(dev,
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"Failed to initialize the SPI NAND chip (err = %d)\n",
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ret);
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return ret;
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}
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/* After power up, all blocks are locked, so unlock them here. */
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for (i = 0; i < nand->memorg.ntargets; i++) {
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ret = spinand_select_target(spinand, i);
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if (ret)
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break;
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ret = spinand_lock_block(spinand, BL_ALL_UNLOCKED);
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if (ret)
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break;
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}
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if (ret)
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spinand_manufacturer_cleanup(spinand);
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return ret;
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}
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static int spinand_init(struct spinand_device *spinand)
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{
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struct device *dev = &spinand->spimem->spi->dev;
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struct mtd_info *mtd = spinand_to_mtd(spinand);
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struct nand_device *nand = mtd_to_nanddev(mtd);
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int ret, i;
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int ret;
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/*
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* We need a scratch buffer because the spi_mem interface requires that
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@ -1124,26 +1167,10 @@ static int spinand_init(struct spinand_device *spinand)
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if (ret)
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goto err_free_bufs;
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ret = spinand_read_cfg(spinand);
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ret = spinand_init_flash(spinand);
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if (ret)
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goto err_free_bufs;
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ret = spinand_init_quad_enable(spinand);
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if (ret)
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goto err_free_bufs;
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ret = spinand_upd_cfg(spinand, CFG_OTP_ENABLE, 0);
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if (ret)
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goto err_free_bufs;
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ret = spinand_manufacturer_init(spinand);
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if (ret) {
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dev_err(dev,
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"Failed to initialize the SPI NAND chip (err = %d)\n",
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ret);
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goto err_free_bufs;
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}
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ret = spinand_create_dirmaps(spinand);
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if (ret) {
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dev_err(dev,
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@ -1152,17 +1179,6 @@ static int spinand_init(struct spinand_device *spinand)
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goto err_manuf_cleanup;
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}
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/* After power up, all blocks are locked, so unlock them here. */
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for (i = 0; i < nand->memorg.ntargets; i++) {
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ret = spinand_select_target(spinand, i);
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if (ret)
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goto err_manuf_cleanup;
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ret = spinand_lock_block(spinand, BL_ALL_UNLOCKED);
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if (ret)
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goto err_manuf_cleanup;
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}
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ret = nanddev_init(nand, &spinand_ops, THIS_MODULE);
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if (ret)
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goto err_manuf_cleanup;
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