From a5cdf7364020a61375af3c8aa23e09181f5c2c6c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Mon, 9 May 2016 07:47:14 -0300 Subject: Linux-libre 4.5.3-gnu --- drivers/mtd/spi-nor/spi-nor.c | 46 +------------------------------------------ 1 file changed, 1 insertion(+), 45 deletions(-) (limited to 'drivers/mtd/spi-nor/spi-nor.c') diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index ed0c19c55..3028c0654 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -1100,45 +1100,6 @@ static int spansion_quad_enable(struct spi_nor *nor) return 0; } -static int micron_quad_enable(struct spi_nor *nor) -{ - int ret; - u8 val; - - ret = nor->read_reg(nor, SPINOR_OP_RD_EVCR, &val, 1); - if (ret < 0) { - dev_err(nor->dev, "error %d reading EVCR\n", ret); - return ret; - } - - write_enable(nor); - - /* set EVCR, enable quad I/O */ - nor->cmd_buf[0] = val & ~EVCR_QUAD_EN_MICRON; - ret = nor->write_reg(nor, SPINOR_OP_WD_EVCR, nor->cmd_buf, 1); - if (ret < 0) { - dev_err(nor->dev, "error while writing EVCR register\n"); - return ret; - } - - ret = spi_nor_wait_till_ready(nor); - if (ret) - return ret; - - /* read EVCR and check it */ - ret = nor->read_reg(nor, SPINOR_OP_RD_EVCR, &val, 1); - if (ret < 0) { - dev_err(nor->dev, "error %d reading EVCR\n", ret); - return ret; - } - if (val & EVCR_QUAD_EN_MICRON) { - dev_err(nor->dev, "Micron EVCR Quad bit not clear\n"); - return -EINVAL; - } - - return 0; -} - static int set_quad_mode(struct spi_nor *nor, const struct flash_info *info) { int status; @@ -1152,12 +1113,7 @@ static int set_quad_mode(struct spi_nor *nor, const struct flash_info *info) } return status; case SNOR_MFR_MICRON: - status = micron_quad_enable(nor); - if (status) { - dev_err(nor->dev, "Micron quad-read not enabled\n"); - return -EINVAL; - } - return status; + return 0; default: status = spansion_quad_enable(nor); if (status) { -- cgit v1.2.3