From f3fe3b15eca7908eaac57f9b8387a5dbc45ec5b2 Mon Sep 17 00:00:00 2001 From: "SkyLake.Huang" Date: Thu, 23 Jun 2022 18:40:59 +0800 Subject: [PATCH 6/6] drivers: mtd: spi-nor: Add calibration support for spi-nor Signed-off-by: SkyLake.Huang --- drivers/mtd/nand/spi/core.c | 5 ++++- drivers/mtd/spi-nor/core.c | 15 +++++++++++++++ 2 files changed, 19 insertions(+), 1 deletion(-) --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -1018,7 +1018,10 @@ int spinand_cal_read(void *priv, u32 *ad if (ret) return ret; - ret = spinand_wait(spinand, &status); + ret = spinand_wait(spinand, + SPINAND_READ_INITIAL_DELAY_US, + SPINAND_READ_POLL_DELAY_US, + &status); if (ret < 0) return ret; --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -3061,6 +3061,18 @@ static void spi_nor_debugfs_init(struct info->id_len, info->id); } +static int spi_nor_cal_read(void *priv, u32 *addr, int addrlen, u8 *buf, int readlen) +{ + struct spi_nor *nor = (struct spi_nor *)priv; + + nor->reg_proto = SNOR_PROTO_1_1_1; + nor->read_proto = SNOR_PROTO_1_1_1; + nor->read_opcode = SPINOR_OP_READ; + nor->read_dummy = 0; + + return nor->controller_ops->read(nor, *addr, readlen, buf); +} + static const struct flash_info *spi_nor_get_flash_info(struct spi_nor *nor, const char *name) { @@ -3134,6 +3146,9 @@ int spi_nor_scan(struct spi_nor *nor, co if (!nor->bouncebuf) return -ENOMEM; + if(nor->spimem) + spi_mem_do_calibration(nor->spimem, spi_nor_cal_read, nor); + info = spi_nor_get_flash_info(nor, name); if (IS_ERR(info)) return PTR_ERR(info);