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71 lines
2.4 KiB
71 lines
2.4 KiB
# SPDX-License-Identifier: GPL-2.0-only |
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menuconfig MTD_ONENAND |
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tristate "OneNAND Device Support" |
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depends on HAS_IOMEM |
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help |
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This enables support for accessing all type of OneNAND flash |
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devices. |
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if MTD_ONENAND |
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config MTD_ONENAND_VERIFY_WRITE |
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bool "Verify OneNAND page writes" |
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help |
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This adds an extra check when data is written to the flash. The |
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OneNAND flash device internally checks only bits transitioning |
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from 1 to 0. There is a rare possibility that even though the |
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device thinks the write was successful, a bit could have been |
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flipped accidentally due to device wear or something else. |
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config MTD_ONENAND_GENERIC |
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tristate "OneNAND Flash device via platform device driver" |
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help |
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Support for OneNAND flash via platform device driver. |
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config MTD_ONENAND_OMAP2 |
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tristate "OneNAND on OMAP2/OMAP3 support" |
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depends on ARCH_OMAP2 || ARCH_OMAP3 || (COMPILE_TEST && ARM) |
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depends on OF || COMPILE_TEST |
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help |
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Support for a OneNAND flash device connected to an OMAP2/OMAP3 SoC |
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via the GPMC memory controller. |
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Enable dmaengine and gpiolib for better performance. |
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config MTD_ONENAND_SAMSUNG |
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tristate "OneNAND on Samsung SOC controller support" |
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depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS4 || COMPILE_TEST |
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help |
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Support for a OneNAND flash device connected to an Samsung SOC. |
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S3C64XX uses command mapping method. |
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S5PC110/S5PC210 use generic OneNAND method. |
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config MTD_ONENAND_OTP |
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bool "OneNAND OTP Support" |
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help |
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One Block of the NAND Flash Array memory is reserved as |
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a One-Time Programmable Block memory area. |
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Also, 1st Block of NAND Flash Array can be used as OTP. |
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The OTP block can be read, programmed and locked using the same |
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operations as any other NAND Flash Array memory block. |
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OTP block cannot be erased. |
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OTP block is fully-guaranteed to be a valid block. |
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config MTD_ONENAND_2X_PROGRAM |
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bool "OneNAND 2X program support" |
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help |
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The 2X Program is an extension of Program Operation. |
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Since the device is equipped with two DataRAMs, and two-plane NAND |
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Flash memory array, these two component enables simultaneous program |
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of 4KiB. Plane1 has only even blocks such as block0, block2, block4 |
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while Plane2 has only odd blocks such as block1, block3, block5. |
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So MTD regards it as 4KiB page size and 256KiB block size |
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Now the following chips support it. (KFXXX16Q2M) |
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Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M, |
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Mux: KFM2G16Q2M, KFN4G16Q2M, |
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And more recent chips |
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endif # MTD_ONENAND
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