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authorLinus Torvalds <torvalds@linux-foundation.org>2016-08-03 00:05:11 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-03 00:05:11 +0300
commitaffe8a2abd0d7815bb2653eea2717d0e0f8ac7e3 (patch)
tree913838395d0480fcf310030d12714439cfb0e4ba /Documentation
parent44cee85a8824464e7e951e590243c2a85d79c494 (diff)
parent1dcff2e4ae728a36876bdb108173f4cbcae128bf (diff)
downloadlinux-affe8a2abd0d7815bb2653eea2717d0e0f8ac7e3.tar.xz
Merge tag 'for-linus-20160801' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris: "NAND: Quoting Boris: 'This pull request contains only one notable change: - Addition of the MTK NAND controller driver And a bunch of specific NAND driver improvements/fixes. Here are the changes that are worth mentioning: - A few fixes/improvements for the xway NAND controller driver - A few fixes for the sunxi NAND controller driver - Support for DMA in the sunxi NAND driver - Support for the sunxi NAND controller IP embedded in A23/A33 SoCs - Addition for bitflips detection in erased pages to the brcmnand driver - Support for new brcmnand IPs - Update of the OMAP-GPMC binding to support DMA channel description' In addition, some small fixes around error handling, etc., as well as one long-standing corner case issue (2.6.20, I think?) with writing 1 byte less than a page. NOR: - rework some error handling on reads and writes, so we can better handle (for instance) SPI controllers which have limitations on their maximum transfer size - add new Cadence Quad SPI flash controller driver - add new Atmel QSPI flash controller driver - add new Hisilicon SPI flash controller driver - support a few new flash, and update supported features on others - fix the logic used for detecting a fully-unlocked flash And other miscellaneous small fixes" * tag 'for-linus-20160801' of git://git.infradead.org/linux-mtd: (60 commits) mtd: spi-nor: don't build Cadence QuadSPI on non-ARM mtd: mtk-nor: remove duplicated include from mtk-quadspi.c mtd: nand: fix bug writing 1 byte less than page size mtd: update description of MTD_BCM47XXSFLASH symbol mtd: spi-nor: Add driver for Cadence Quad SPI Flash Controller mtd: spi-nor: Bindings for Cadence Quad SPI Flash Controller driver mtd: nand: brcmnand: Change BUG_ON in brcmnand_send_cmd mtd: pmcmsp-flash: Allocating too much in init_msp_flash() mtd: maps: sa1100-flash: potential NULL dereference mtd: atmel-quadspi: add driver for Atmel QSPI controller mtd: nand: omap2: fix return value check in omap_nand_probe() Documentation: atmel-quadspi: add binding file for Atmel QSPI driver mtd: spi-nor: add hisilicon spi-nor flash controller driver mtd: spi-nor: support dual, quad, and WP for Gigadevice mtd: spi-nor: Added support for n25q00a. memory: Update dependency of IFC for Layerscape mtd: nand: jz4780: Update MODULE_AUTHOR email address mtd: nand: sunxi: prevent a small memory leak mtd: nand: sunxi: add reset line support mtd: nand: sunxi: update DT bindings ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt7
-rw-r--r--Documentation/devicetree/bindings/mtd/atmel-quadspi.txt32
-rw-r--r--Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt1
-rw-r--r--Documentation/devicetree/bindings/mtd/cadence-quadspi.txt56
-rw-r--r--Documentation/devicetree/bindings/mtd/gpmc-nand.txt2
-rw-r--r--Documentation/devicetree/bindings/mtd/hisilicon,fmc-spi-nor.txt24
-rw-r--r--Documentation/devicetree/bindings/mtd/mtk-nand.txt160
-rw-r--r--Documentation/devicetree/bindings/mtd/sunxi-nand.txt6
8 files changed, 286 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt b/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
index 21055e210234..c1359f4d48d7 100644
--- a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
+++ b/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
@@ -46,6 +46,10 @@ Required properties:
0 maps to GPMC_WAIT0 pin.
- gpio-cells: Must be set to 2
+Required properties when using NAND prefetch dma:
+ - dmas GPMC NAND prefetch dma channel
+ - dma-names Must be set to "rxtx"
+
Timing properties for child nodes. All are optional and default to 0.
- gpmc,sync-clk-ps: Minimum clock period for synchronous mode, in picoseconds
@@ -137,7 +141,8 @@ Example for an AM33xx board:
ti,hwmods = "gpmc";
reg = <0x50000000 0x2000>;
interrupts = <100>;
-
+ dmas = <&edma 52 0>;
+ dma-names = "rxtx";
gpmc,num-cs = <8>;
gpmc,num-waitpins = <2>;
#address-cells = <2>;
diff --git a/Documentation/devicetree/bindings/mtd/atmel-quadspi.txt b/Documentation/devicetree/bindings/mtd/atmel-quadspi.txt
new file mode 100644
index 000000000000..489807005eda
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/atmel-quadspi.txt
@@ -0,0 +1,32 @@
+* Atmel Quad Serial Peripheral Interface (QSPI)
+
+Required properties:
+- compatible: Should be "atmel,sama5d2-qspi".
+- reg: Should contain the locations and lengths of the base registers
+ and the mapped memory.
+- reg-names: Should contain the resource reg names:
+ - qspi_base: configuration register address space
+ - qspi_mmap: memory mapped address space
+- interrupts: Should contain the interrupt for the device.
+- clocks: The phandle of the clock needed by the QSPI controller.
+- #address-cells: Should be <1>.
+- #size-cells: Should be <0>.
+
+Example:
+
+spi@f0020000 {
+ compatible = "atmel,sama5d2-qspi";
+ reg = <0xf0020000 0x100>, <0xd0000000 0x8000000>;
+ reg-names = "qspi_base", "qspi_mmap";
+ interrupts = <52 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&spi0_clk>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_spi0_default>;
+ status = "okay";
+
+ m25p80@0 {
+ ...
+ };
+};
diff --git a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
index 7066597c9a81..b40f3a492800 100644
--- a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
+++ b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
@@ -27,6 +27,7 @@ Required properties:
brcm,brcmnand-v6.2
brcm,brcmnand-v7.0
brcm,brcmnand-v7.1
+ brcm,brcmnand-v7.2
brcm,brcmnand
- reg : the register start and length for NAND register region.
(optional) Flash DMA register range (if present)
diff --git a/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt b/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt
new file mode 100644
index 000000000000..f248056da24c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt
@@ -0,0 +1,56 @@
+* Cadence Quad SPI controller
+
+Required properties:
+- compatible : Should be "cdns,qspi-nor".
+- reg : Contains two entries, each of which is a tuple consisting of a
+ physical address and length. The first entry is the address and
+ length of the controller register set. The second entry is the
+ address and length of the QSPI Controller data area.
+- interrupts : Unit interrupt specifier for the controller interrupt.
+- clocks : phandle to the Quad SPI clock.
+- cdns,fifo-depth : Size of the data FIFO in words.
+- cdns,fifo-width : Bus width of the data FIFO in bytes.
+- cdns,trigger-address : 32-bit indirect AHB trigger address.
+
+Optional properties:
+- cdns,is-decoded-cs : Flag to indicate whether decoder is used or not.
+
+Optional subnodes:
+Subnodes of the Cadence Quad SPI controller are spi slave nodes with additional
+custom properties:
+- cdns,read-delay : Delay for read capture logic, in clock cycles
+- cdns,tshsl-ns : Delay in nanoseconds for the length that the master
+ mode chip select outputs are de-asserted between
+ transactions.
+- cdns,tsd2d-ns : Delay in nanoseconds between one chip select being
+ de-activated and the activation of another.
+- cdns,tchsh-ns : Delay in nanoseconds between last bit of current
+ transaction and deasserting the device chip select
+ (qspi_n_ss_out).
+- cdns,tslch-ns : Delay in nanoseconds between setting qspi_n_ss_out low
+ and first bit transfer.
+
+Example:
+
+ qspi: spi@ff705000 {
+ compatible = "cdns,qspi-nor";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0xff705000 0x1000>,
+ <0xffa00000 0x1000>;
+ interrupts = <0 151 4>;
+ clocks = <&qspi_clk>;
+ cdns,is-decoded-cs;
+ cdns,fifo-depth = <128>;
+ cdns,fifo-width = <4>;
+ cdns,trigger-address = <0x00000000>;
+
+ flash0: n25q00@0 {
+ ...
+ cdns,read-delay = <4>;
+ cdns,tshsl-ns = <50>;
+ cdns,tsd2d-ns = <50>;
+ cdns,tchsh-ns = <4>;
+ cdns,tslch-ns = <4>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
index 3ee7e202657c..174f68c26c1b 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
@@ -39,7 +39,7 @@ Optional properties:
"prefetch-polled" Prefetch polled mode (default)
"polled" Polled mode, without prefetch
- "prefetch-dma" Prefetch enabled sDMA mode
+ "prefetch-dma" Prefetch enabled DMA mode
"prefetch-irq" Prefetch enabled irq mode
- elm_id: <deprecated> use "ti,elm-id" instead
diff --git a/Documentation/devicetree/bindings/mtd/hisilicon,fmc-spi-nor.txt b/Documentation/devicetree/bindings/mtd/hisilicon,fmc-spi-nor.txt
new file mode 100644
index 000000000000..74981520d6dd
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/hisilicon,fmc-spi-nor.txt
@@ -0,0 +1,24 @@
+HiSilicon SPI-NOR Flash Controller
+
+Required properties:
+- compatible : Should be "hisilicon,fmc-spi-nor" and one of the following strings:
+ "hisilicon,hi3519-spi-nor"
+- address-cells : Should be 1.
+- size-cells : Should be 0.
+- reg : Offset and length of the register set for the controller device.
+- reg-names : Must include the following two entries: "control", "memory".
+- clocks : handle to spi-nor flash controller clock.
+
+Example:
+spi-nor-controller@10000000 {
+ compatible = "hisilicon,hi3519-spi-nor", "hisilicon,fmc-spi-nor";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x10000000 0x1000>, <0x14000000 0x1000000>;
+ reg-names = "control", "memory";
+ clocks = <&clock HI3519_FMC_CLK>;
+ spi-nor@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/mtd/mtk-nand.txt b/Documentation/devicetree/bindings/mtd/mtk-nand.txt
new file mode 100644
index 000000000000..069c192ed5c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/mtk-nand.txt
@@ -0,0 +1,160 @@
+MTK SoCs NAND FLASH controller (NFC) DT binding
+
+This file documents the device tree bindings for MTK SoCs NAND controllers.
+The functional split of the controller requires two drivers to operate:
+the nand controller interface driver and the ECC engine driver.
+
+The hardware description for both devices must be captured as device
+tree nodes.
+
+1) NFC NAND Controller Interface (NFI):
+=======================================
+
+The first part of NFC is NAND Controller Interface (NFI) HW.
+Required NFI properties:
+- compatible: Should be "mediatek,mtxxxx-nfc".
+- reg: Base physical address and size of NFI.
+- interrupts: Interrupts of NFI.
+- clocks: NFI required clocks.
+- clock-names: NFI clocks internal name.
+- status: Disabled default. Then set "okay" by platform.
+- ecc-engine: Required ECC Engine node.
+- #address-cells: NAND chip index, should be 1.
+- #size-cells: Should be 0.
+
+Example:
+
+ nandc: nfi@1100d000 {
+ compatible = "mediatek,mt2701-nfc";
+ reg = <0 0x1100d000 0 0x1000>;
+ interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_NFI>,
+ <&pericfg CLK_PERI_NFI_PAD>;
+ clock-names = "nfi_clk", "pad_clk";
+ status = "disabled";
+ ecc-engine = <&bch>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+Platform related properties, should be set in {platform_name}.dts:
+- children nodes: NAND chips.
+
+Children nodes properties:
+- reg: Chip Select Signal, default 0.
+ Set as reg = <0>, <1> when need 2 CS.
+Optional:
+- nand-on-flash-bbt: Store BBT on NAND Flash.
+- nand-ecc-mode: the NAND ecc mode (check driver for supported modes)
+- nand-ecc-step-size: Number of data bytes covered by a single ECC step.
+ valid values: 512 and 1024.
+ 1024 is recommended for large page NANDs.
+- nand-ecc-strength: Number of bits to correct per ECC step.
+ The valid values that the controller supports are: 4, 6,
+ 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36, 40, 44,
+ 48, 52, 56, 60.
+ The strength should be calculated as follows:
+ E = (S - F) * 8 / 14
+ S = O / (P / Q)
+ E : nand-ecc-strength.
+ S : spare size per sector.
+ F : FDM size, should be in the range [1,8].
+ It is used to store free oob data.
+ O : oob size.
+ P : page size.
+ Q : nand-ecc-step-size.
+ If the result does not match any one of the listed
+ choices above, please select the smaller valid value from
+ the list.
+ (otherwise the driver will do the adjustment at runtime)
+- pinctrl-names: Default NAND pin GPIO setting name.
+- pinctrl-0: GPIO setting node.
+
+Example:
+ &pio {
+ nand_pins_default: nanddefault {
+ pins_dat {
+ pinmux = <MT2701_PIN_111_MSDC0_DAT7__FUNC_NLD7>,
+ <MT2701_PIN_112_MSDC0_DAT6__FUNC_NLD6>,
+ <MT2701_PIN_114_MSDC0_DAT4__FUNC_NLD4>,
+ <MT2701_PIN_118_MSDC0_DAT3__FUNC_NLD3>,
+ <MT2701_PIN_121_MSDC0_DAT0__FUNC_NLD0>,
+ <MT2701_PIN_120_MSDC0_DAT1__FUNC_NLD1>,
+ <MT2701_PIN_113_MSDC0_DAT5__FUNC_NLD5>,
+ <MT2701_PIN_115_MSDC0_RSTB__FUNC_NLD8>,
+ <MT2701_PIN_119_MSDC0_DAT2__FUNC_NLD2>;
+ input-enable;
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-up;
+ };
+
+ pins_we {
+ pinmux = <MT2701_PIN_117_MSDC0_CLK__FUNC_NWEB>;
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_10>;
+ };
+
+ pins_ale {
+ pinmux = <MT2701_PIN_116_MSDC0_CMD__FUNC_NALE>;
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
+ };
+ };
+ };
+
+ &nandc {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&nand_pins_default>;
+ nand@0 {
+ reg = <0>;
+ nand-on-flash-bbt;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <24>;
+ nand-ecc-step-size = <1024>;
+ };
+ };
+
+NAND chip optional subnodes:
+- Partitions, see Documentation/devicetree/bindings/mtd/partition.txt
+
+Example:
+ nand@0 {
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ preloader@0 {
+ label = "pl";
+ read-only;
+ reg = <0x00000000 0x00400000>;
+ };
+ android@0x00400000 {
+ label = "android";
+ reg = <0x00400000 0x12c00000>;
+ };
+ };
+ };
+
+2) ECC Engine:
+==============
+
+Required BCH properties:
+- compatible: Should be "mediatek,mtxxxx-ecc".
+- reg: Base physical address and size of ECC.
+- interrupts: Interrupts of ECC.
+- clocks: ECC required clocks.
+- clock-names: ECC clocks internal name.
+- status: Disabled default. Then set "okay" by platform.
+
+Example:
+
+ bch: ecc@1100e000 {
+ compatible = "mediatek,mt2701-ecc";
+ reg = <0 0x1100e000 0 0x1000>;
+ interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_NFI_ECC>;
+ clock-names = "nfiecc_clk";
+ status = "disabled";
+ };
diff --git a/Documentation/devicetree/bindings/mtd/sunxi-nand.txt b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt
index 086d6f44c4b9..f322f56aef74 100644
--- a/Documentation/devicetree/bindings/mtd/sunxi-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt
@@ -11,10 +11,16 @@ Required properties:
* "ahb" : AHB gating clock
* "mod" : nand controller clock
+Optional properties:
+- dmas : shall reference DMA channel associated to the NAND controller.
+- dma-names : shall be "rxtx".
+
Optional children nodes:
Children nodes represent the available nand chips.
Optional properties:
+- reset : phandle + reset specifier pair
+- reset-names : must contain "ahb"
- allwinner,rb : shall contain the native Ready/Busy ids.
or
- rb-gpios : shall contain the gpios used as R/B pins.