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u-boot/include/mtd.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 17:58:06 -04:00
/* SPDX-License-Identifier: GPL-2.0+ */
dm: implement a MTD uclass Implement a Memory Technology Device (MTD) uclass. It should include most flash drivers in the future. Though no uclass ops are defined yet, the MTD ops could be used. The NAND flash driver is based on MTD. The CFI flash and SPI flash support MTD, too. It should make sense to convert them to MTD uclass. Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
2015-11-07 14:20:31 +08:00
/*
* Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw>
*/
#ifndef _MTD_H_
#define _MTD_H_
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 <patrick.delaunay@foss.st.com> [trini: Add <dm/device.h> to <mtd.h> for DM_MAX_SEQ_STR] Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-22 18:29:08 +02:00
#include <dm/device.h>
#include <jffs2/load_kernel.h>
dm: implement a MTD uclass Implement a Memory Technology Device (MTD) uclass. It should include most flash drivers in the future. Though no uclass ops are defined yet, the MTD ops could be used. The NAND flash driver is based on MTD. The CFI flash and SPI flash support MTD, too. It should make sense to convert them to MTD uclass. Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
2015-11-07 14:20:31 +08:00
#include <linux/mtd/mtd.h>
cmd: mtd: add 'mtd' command There should not be a 'nand' command, a 'sf' command and certainly not a new 'spi-nand' command. Write a 'mtd' command instead to manage all MTD devices/partitions at once. This should be the preferred way to access any MTD device. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-09-29 12:58:28 +02:00
int mtd_probe_devices(void);
mtd: uclass: add probe function The user might want to trigger the probe of any MTD device, export these functions so they can be called from a command source file. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-09-29 12:58:24 +02:00
mtd: add prototypes for weak function This patch adds a prototype for the weak function board_mtdparts_default(). It solves one warning when compiling with W=1 on stm32mp1 board: board/st/stm32mp1/stm32mp1.c: warning: no previous prototype for 'board_mtdparts_default' [-Wmissing-prototypes] void board_mtdparts_default(const char **mtdids, const char **mtdparts) ^~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-01-24 13:45:56 +01:00
void board_mtdparts_default(const char **mtdids, const char **mtdparts);
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 <patrick.delaunay@foss.st.com> [trini: Add <dm/device.h> to <mtd.h> for DM_MAX_SEQ_STR] Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-22 18:29:08 +02:00
/* 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)
dm: implement a MTD uclass Implement a Memory Technology Device (MTD) uclass. It should include most flash drivers in the future. Though no uclass ops are defined yet, the MTD ops could be used. The NAND flash driver is based on MTD. The CFI flash and SPI flash support MTD, too. It should make sense to convert them to MTD uclass. Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
2015-11-07 14:20:31 +08:00
#endif /* _MTD_H_ */
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