From b218f865e8a7defdcb2c6d87e8d93f9ea7e4e9f5 Mon Sep 17 00:00:00 2001 From: Patrick Delaunay Date: Wed, 22 Sep 2021 18:29:07 +0200 Subject: mtd: cfi_flash: use cfi_flash_num_flash_banks only when supported When CONFIG_SYS_MAX_FLASH_BANKS_DETECT is activated, CONFIG_SYS_MAX_FLASH_BANKS is replaced by cfi_flash_num_flash_banks, but this variable is defined in drivers/mtd/cfi_flash.c, which is compiled only when CONFIG_FLASH_CFI_DRIVER is activated, in U-Boot or in SPL when CONFIG_SPL_MTD_SUPPORT is activated. This patch deactivates this feature CONFIG_SYS_MAX_FLASH_BANKS_DETECT when flash cfi driver is not activated to avoid compilation issue in the next patch, when CONFIG_SYS_MAX_FLASH_BANKS is used in spi_nor_scan(). Signed-off-by: Patrick Delaunay --- include/mtd/cfi_flash.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/mtd/cfi_flash.h b/include/mtd/cfi_flash.h index 4963c89642f..a1af6fc200f 100644 --- a/include/mtd/cfi_flash.h +++ b/include/mtd/cfi_flash.h @@ -157,11 +157,17 @@ struct cfi_pri_hdr { * Use CONFIG_SYS_MAX_FLASH_BANKS_DETECT if defined */ #if defined(CONFIG_SYS_MAX_FLASH_BANKS_DETECT) -#define CONFIG_SYS_MAX_FLASH_BANKS (cfi_flash_num_flash_banks) #define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS_DETECT +/* map to cfi_flash_num_flash_banks only when supported */ +#if IS_ENABLED(CONFIG_FLASH_CFI_DRIVER) && \ + (!IS_ENABLED(CONFIG_SPL_BUILD) || IS_ENABLED(CONFIG_SPL_MTD_SUPPORT)) +#define CONFIG_SYS_MAX_FLASH_BANKS (cfi_flash_num_flash_banks) /* board code can update this variable before CFI detection */ extern int cfi_flash_num_flash_banks; #else +#define CONFIG_SYS_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS_DETECT +#endif +#else #define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS #endif -- cgit v1.2.3 From a4f2d83414557f2ad7b63d537e2c31790d0f184d Mon Sep 17 00:00:00 2001 From: Patrick Delaunay Date: Wed, 22 Sep 2021 18:29:08 +0200 Subject: mtd: spi: nor: force mtd name to "nor%d" Force the mtd name of spi-nor to "nor" + the driver sequence number: "nor0", "nor1"... beginning after the existing nor devices. This patch is coherent with existing "nand" and "spi-nand" mtd device names. When CFI MTD NOR device are supported, the spi-nor index is chosen after the last CFI device defined by CONFIG_SYS_MAX_FLASH_BANKS. When CONFIG_SYS_MAX_FLASH_BANKS_DETECT is activated, this config is replaced by to cfi_flash_num_flash_banks in the include file mtd/cfi_flash.h. This generic name "nor%d" can be use to identify the mtd spi-nor device without knowing the real device name or the DT path of the device, used with API get_mtd_device_nm() and is used in mtdparts command. This patch also avoids issue when the same NOR device is present 2 times, for example on STM32MP15F-EV1: STM32MP> mtd list SF: Detected mx66l51235l with page size 256 Bytes, erase size 64 KiB, \ total 64 MiB List of MTD devices: * nand0 - type: NAND flash - block size: 0x40000 bytes - min I/O: 0x1000 bytes - OOB size: 224 bytes - OOB available: 118 bytes - ECC strength: 8 bits - ECC step size: 512 bytes - bitflip threshold: 6 bits - 0x000000000000-0x000040000000 : "nand0" * mx66l51235l - device: mx66l51235l@0 - parent: spi@58003000 - driver: jedec_spi_nor - path: /soc/spi@58003000/mx66l51235l@0 - type: NOR flash - block size: 0x10000 bytes - min I/O: 0x1 bytes - 0x000000000000-0x000004000000 : "mx66l51235l" * mx66l51235l - device: mx66l51235l@1 - parent: spi@58003000 - driver: jedec_spi_nor - path: /soc/spi@58003000/mx66l51235l@1 - type: NOR flash - block size: 0x10000 bytes - min I/O: 0x1 bytes - 0x000000000000-0x000004000000 : "mx66l51235l" The same mtd name "mx66l51235l" identify the 2 instances mx66l51235l@0 and mx66l51235l@1. This patch fixes a ST32CubeProgrammer / stm32prog command issue with nor0 target on STM32MP157C-EV1 board introduced by commit b7f060565e31 ("mtd: spi-nor: allow registering multiple MTDs when DM is enabled"). Fixes: b7f060565e31 ("mtd: spi-nor: allow registering multiple MTDs when DM is enabled") Signed-off-by: Patrick Delaunay [trini: Add to for DM_MAX_SEQ_STR] Signed-off-by: Tom Rini --- include/dm/device.h | 3 ++- include/linux/mtd/spi-nor.h | 2 ++ include/mtd.h | 5 +++++ 3 files changed, 9 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/dm/device.h b/include/dm/device.h index 0a9718a5b81..9d0ca6a550e 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -207,8 +207,9 @@ struct udevice_rt { u32 flags_; }; -/* Maximum sequence number supported */ +/* Maximum sequence number supported and associated string length */ #define DM_MAX_SEQ 999 +#define DM_MAX_SEQ_STR 3 /* Returns the operations for a device */ #define device_get_ops(dev) (dev->driver->ops) diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index 7ddc4ba2bf2..4ceeae623de 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -7,6 +7,7 @@ #ifndef __LINUX_MTD_SPI_NOR_H #define __LINUX_MTD_SPI_NOR_H +#include #include #include #include @@ -561,6 +562,7 @@ struct spi_nor { int (*ready)(struct spi_nor *nor); void *priv; + char mtd_name[MTD_NAME_SIZE(MTD_DEV_TYPE_NOR)]; /* Compatibility for spi_flash, remove once sf layer is merged with mtd */ const char *name; u32 size; diff --git a/include/mtd.h b/include/mtd.h index b569331edb0..f9e5082446a 100644 --- a/include/mtd.h +++ b/include/mtd.h @@ -6,10 +6,15 @@ #ifndef _MTD_H_ #define _MTD_H_ +#include +#include #include int mtd_probe_devices(void); void board_mtdparts_default(const char **mtdids, const char **mtdparts); +/* compute the max size for the string associated to a dev type */ +#define MTD_NAME_SIZE(type) (sizeof(MTD_DEV_TYPE(type)) + DM_MAX_SEQ_STR) + #endif /* _MTD_H_ */ -- cgit v1.2.3 From b8919eaa6835c8a606569ea596dd4ed209bd1d67 Mon Sep 17 00:00:00 2001 From: Patrice Chotard Date: Mon, 13 Sep 2021 16:25:53 +0200 Subject: mtd: nand: raw: convert nand_dt_init() to ofnode_xx() interface nand_dt_init() is still using fdtdec_xx() interface. If OF_LIVE flag is enabled, dt property can't be get anymore. Updating all fdtdec_xx() interface to ofnode_xx() to solve this issue. For doing this, node parameter type must be ofnode. First idea was to convert "node" parameter to ofnode type inside nand_dt_init() using offset_to_ofnode(node). But offset_to_ofnode() is not bijective, in case OF_LIVE flag is enabled, it performs an assert(). So, this leads to update nand_chip struct flash_node field from int to ofnode and to update all nand_dt_init() callers. Signed-off-by: Patrice Chotard --- include/linux/mtd/rawnand.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 66febc6b721..2fba9dc317e 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -891,7 +891,7 @@ struct nand_chip { void __iomem *IO_ADDR_R; void __iomem *IO_ADDR_W; - int flash_node; + ofnode flash_node; uint8_t (*read_byte)(struct mtd_info *mtd); u16 (*read_word)(struct mtd_info *mtd); @@ -973,12 +973,12 @@ struct nand_chip { static inline void nand_set_flash_node(struct nand_chip *chip, ofnode node) { - chip->flash_node = ofnode_to_offset(node); + chip->flash_node = node; } static inline ofnode nand_get_flash_node(struct nand_chip *chip) { - return offset_to_ofnode(chip->flash_node); + return chip->flash_node; } static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd) -- cgit v1.2.3