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| author | Pali Rohár <pali@kernel.org> | 2022-04-04 18:17:19 +0200 |
|---|---|---|
| committer | Priyanka Jain <priyanka.jain@nxp.com> | 2022-04-26 17:18:39 +0530 |
| commit | da98ddaf732098b30ee4169f4fa01059261fa9ab (patch) | |
| tree | 566736c3abdf548469eeb82c4dd61e8051a03070 /drivers/mtd/nand | |
| parent | 974f66a4700ca4e433e0e39526ac5bd3012cbe43 (diff) | |
| download | u-boot-da98ddaf732098b30ee4169f4fa01059261fa9ab.zip u-boot-da98ddaf732098b30ee4169f4fa01059261fa9ab.tar.gz u-boot-da98ddaf732098b30ee4169f4fa01059261fa9ab.tar.bz2 | |
mtd: rawnand: fsl_elbc: Add device tree support
This allows boards to specify NAND settings via standard DT properties.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Diffstat (limited to 'drivers/mtd/nand')
| -rw-r--r-- | drivers/mtd/nand/raw/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/mtd/nand/raw/fsl_elbc_nand.c | 42 |
2 files changed, 44 insertions, 2 deletions
diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig index 1eab21e..d75f371 100644 --- a/drivers/mtd/nand/raw/Kconfig +++ b/drivers/mtd/nand/raw/Kconfig @@ -158,6 +158,10 @@ config NAND_FSL_ELBC help Enable the Freescale Enhanced Local Bus Controller FCM NAND driver. +config NAND_FSL_ELBC_DT + bool "Support Freescale Enhanced Local Bus Controller FCM NAND driver (DT mode)" + depends on NAND_FSL_ELBC + config NAND_FSL_IFC bool "Support Freescale Integrated Flash Controller NAND driver" select TPL_SYS_NAND_SELF_INIT if TPL_NAND_SUPPORT diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c index f8698ec..f8d2bdf 100644 --- a/drivers/mtd/nand/raw/fsl_elbc_nand.c +++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c @@ -20,6 +20,10 @@ #include <asm/io.h> #include <linux/errno.h> +#ifdef CONFIG_NAND_FSL_ELBC_DT +#include <dm/read.h> +#endif + #ifdef VERBOSE_DEBUG #define DEBUG_ELBC #define vdbg(format, arg...) printf("DEBUG: " format, ##arg) @@ -664,7 +668,7 @@ static void fsl_elbc_ctrl_init(void) elbc_ctrl->addr = NULL; } -static int fsl_elbc_chip_init(int devnum, u8 *addr) +static int fsl_elbc_chip_init(int devnum, u8 *addr, ofnode flash_node) { struct mtd_info *mtd; struct nand_chip *nand; @@ -712,6 +716,8 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr) elbc_ctrl->chips[priv->bank] = priv; /* fill in nand_chip structure */ + nand->flash_node = flash_node; + /* set up function call table */ nand->read_byte = fsl_elbc_read_byte; nand->write_buf = fsl_elbc_write_buf; @@ -804,6 +810,8 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr) return 0; } +#ifndef CONFIG_NAND_FSL_ELBC_DT + #ifndef CONFIG_SYS_NAND_BASE_LIST #define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND_BASE } #endif @@ -816,5 +824,35 @@ void board_nand_init(void) int i; for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) - fsl_elbc_chip_init(i, (u8 *)base_address[i]); + fsl_elbc_chip_init(i, (u8 *)base_address[i], ofnode_null()); +} + +#else + +static int fsl_elbc_nand_probe(struct udevice *dev) +{ + return fsl_elbc_chip_init(0, (void *)dev_read_addr(dev), dev_ofnode(dev)); +} + +static const struct udevice_id fsl_elbc_nand_dt_ids[] = { + { .compatible = "fsl,elbc-fcm-nand", }, + {} +}; + +U_BOOT_DRIVER(fsl_elbc_nand) = { + .name = "fsl_elbc_nand", + .id = UCLASS_MTD, + .of_match = fsl_elbc_nand_dt_ids, + .probe = fsl_elbc_nand_probe, +}; + +void board_nand_init(void) +{ + struct udevice *dev; + int ret; + + ret = uclass_get_device_by_driver(UCLASS_MTD, DM_DRIVER_GET(fsl_elbc_nand), &dev); + if (ret && ret != -ENODEV) + printf("Failed to initialize fsl_elbc_nand NAND controller. (error %d)\n", ret); } +#endif |