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path: root/drivers/memory/jz4780-nemc.c
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2023-07-25memory: Explicitly include correct DT includesRob Herring1-1/+0
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230714174717.4059518-1-robh@kernel.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2020-12-05memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()Zhang Changzhong1-0/+2
platform_get_resource() may fail and return NULL, so we should better check it's return value to avoid a NULL pointer dereference a bit later in the code. This is detected by Coccinelle semantic patch. Fixes: 911a88829725 ("memory: jz4780-nemc: driver for the NEMC on JZ4780 SoCs") Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Acked-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/1607070717-32880-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-10-26memory: jz4780_nemc: Fix an error pointer vs NULL check in probe()Dan Carpenter1-2/+2
The devm_ioremap() function returns NULL on error, it doesn't return error pointers. This bug could lead to an Oops during probe. Fixes: f046e4a3f0b9 ("memory: jz4780_nemc: Only request IO memory the driver will use") Cc: <stable@vger.kernel.org> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20200803143607.GC346925@mwanda Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-28memory: jz4780_nemc: Only request IO memory the driver will usePaul Cercueil1-1/+16
The driver only uses the registers up to offset 0x54. Since the EFUSE registers are in the middle of the NEMC registers, we only request the registers we will use for now - that way the EFUSE driver can probe too. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Tested-by: H. Nikolaus Schaller <hns@goldelico.com> Link: https://lore.kernel.org/r/20200728152629.28878-1-paul@crapouillou.net Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-07-17Merge tag 'mips_5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds1-1/+1
Pull MIPS updates from Paul Burton: "A light batch this time around but significant improvements for certain systems: - Removal of readq & writeq for MIPS32 kernels where they would simply BUG() anyway, allowing drivers or other code that #ifdefs on their presence to work properly. - Improvements for Ingenic JZ4740 systems, including support for the external memory controller & pinmuxing fixes for qi_lb60/NanoNote systems. - Improvements for Lantiq systems, in particular around SMP & IPIs. - DT updates for ralink/MediaTek MT7628a systems to probe & configure a bunch more devices. - Miscellaneous cleanups & build fixes" * tag 'mips_5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (30 commits) MIPS: fix some more fall through errors in arch/mips MIPS: perf events: handle switch statement falling through warnings mips/kprobes: Export kprobe_fault_handler() MAINTAINERS: Add myself as Ingenic SoCs maintainer MIPS: ralink: mt7628a.dtsi: Add watchdog controller DT node MIPS: ralink: mt7628a.dtsi: Add SPI controller DT node MIPS: ralink: mt7628a.dtsi: Add GPIO controller DT node MIPS: ralink: mt7628a.dtsi: Add pinctrl DT properties to the UART nodes MIPS: ralink: mt7628a.dtsi: Add pinmux DT node MIPS: ralink: mt7628a.dtsi: Add SPDX GPL-2.0 license identifier MIPS: lantiq: Add SMP support for lantiq interrupt controller MIPS: lantiq: Shorten register names, remove unused macros MIPS: lantiq: Fix bitfield masking MIPS: lantiq: Remove unused macros MIPS: lantiq: Fix attributes of of_device_id structure MIPS: lantiq: Change variables to the same type as the source MIPS: lantiq: Move macro directly to iomem function mips: Remove q-accessors from non-64bit platforms FDDI: defza: Include linux/io-64-nonatomic-lo-hi.h MIPS: configs: Remove useless UEVENT_HELPER_PATH ...
2019-06-23Merge 5.2-rc6 into char-misc-nextGreg Kroah-Hartman1-4/+1
We need the char-misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-21memory: jz4780_nemc: Add support for the JZ4740Paul Cercueil1-3/+21
Add support for the JZ4740 SoC from Ingenic. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Reviewed-by: Boris Brezillon <bbrezillon@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-21memory: jz4780-nemc: Reduce size of const arrayPaul Cercueil1-1/+1
The maximum value found in that array is 15, there's no need to store these values as uint32_t, a uint8_t is enough. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-4/+1
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-12memory: jz4780-nemc: Grammar s/the its/its/Geert Uytterhoeven1-1/+1
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Kosina <trivial@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-06-12memory: jz4780-nemc: Reduce size of const arrayPaul Cercueil1-1/+1
The maximum value found in that array is 15, there's no need to store these values as uint32_t, a uint8_t is enough. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Paul Burton <paul.burton@mips.com>
2019-06-12memory: jz4780_nemc: Add support for the JZ4740Paul Cercueil1-3/+21
Add support for the JZ4740 SoC from Ingenic. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Reviewed-by: Boris Brezillon <bbrezillon@kernel.org> Signed-off-by: Paul Burton <paul.burton@mips.com>
2017-08-16memory: Convert to using %pOF instead of full_nameRob Herring1-6/+6
Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Roger Quadros <rogerq@ti.com> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-03-27memory: jz4780-nemc: driver for the NEMC on JZ4780 SoCsAlex Smith1-0/+391
Add a driver for the NAND/External Memory Controller (NEMC) on JZ4780 and later SoCs. The primary function of this driver is to configure parameters, such as timings, for external memory devices using data supplied in the device tree. Devices connected to the NEMC are represented in the DT as children of the NEMC node, the driver uses optional properties specified in these child nodes to configure the parameters of each bank. Signed-off-by: Alex Smith <alex@alex-smith.me.uk> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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