diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/i2c/i2c.txt | 5 | ||||
| -rw-r--r-- | doc/device-tree-bindings/mtd/stm32-fmc2-nand.txt | 59 | ||||
| -rw-r--r-- | doc/git-mailrc | 4 |
3 files changed, 65 insertions, 3 deletions
diff --git a/doc/device-tree-bindings/i2c/i2c.txt b/doc/device-tree-bindings/i2c/i2c.txt index de818d4713..9698e4899b 100644 --- a/doc/device-tree-bindings/i2c/i2c.txt +++ b/doc/device-tree-bindings/i2c/i2c.txt @@ -12,6 +12,10 @@ property which allows the chip offset length to be selected. Optional properties: - u-boot,i2c-offset-len - length of chip offset in bytes. If omitted the default value of 1 is used. +- u-boot,i2c-transaction-bytes - the length of single I2C transaction on + the bus. Some devices require more than single byte transmission + (e.g. mc34708 mfd). This information is necessary to correctly + initialize (put into idle state) I2C bus after soft reset. - gpios = <sda ...>, <scl ...>; pinctrl-names = "default", "gpio"; pinctrl-0 = <&i2c_xfer>; @@ -28,6 +32,7 @@ i2c4: i2c@12ca0000 { compatible = "google,cros-ec"; i2c-max-frequency = <100000>; u-boot,i2c-offset-len = <0>; + u-boot,i2c-transaction-bytes = <3>; ec-interrupt = <&gpx1 6 GPIO_ACTIVE_LOW>; }; }; diff --git a/doc/device-tree-bindings/mtd/stm32-fmc2-nand.txt b/doc/device-tree-bindings/mtd/stm32-fmc2-nand.txt new file mode 100644 index 0000000000..70e76be2a3 --- /dev/null +++ b/doc/device-tree-bindings/mtd/stm32-fmc2-nand.txt @@ -0,0 +1,59 @@ +STMicroelectronics Flexible Memory Controller 2 (FMC2) +NAND Interface + +Required properties: +- compatible: Should be one of: + * st,stm32mp15-fmc2 +- reg: NAND flash controller memory areas. + First region contains the register location. + Regions 2 to 4 respectively contain the data, command, + and address space for CS0. + Regions 5 to 7 contain the same areas for CS1. +- interrupts: The interrupt number +- pinctrl-0: Standard Pinctrl phandle (see: pinctrl/pinctrl-bindings.txt) +- clocks: The clock needed by the NAND flash controller + +Optional properties: +- resets: Reference to a reset controller asserting the FMC controller +- dmas: DMA specifiers (see: dma/stm32-mdma.txt) +- dma-names: Must be "tx", "rx" and "ecc" + +Optional children nodes: +Children nodes represent the available NAND chips. + +Optional properties: +- nand-on-flash-bbt: see nand.txt +- nand-ecc-strength: see nand.txt +- nand-ecc-step-size: see nand.txt + +The following ECC strength and step size are currently supported: + - nand-ecc-strength = <1>, nand-ecc-step-size = <512> (Hamming) + - nand-ecc-strength = <4>, nand-ecc-step-size = <512> (BCH4) + - nand-ecc-strength = <8>, nand-ecc-step-size = <512> (BCH8) (default) + +Example: + + fmc: nand-controller@58002000 { + compatible = "st,stm32mp15-fmc2"; + reg = <0x58002000 0x1000>, + <0x80000000 0x1000>, + <0x88010000 0x1000>, + <0x88020000 0x1000>, + <0x81000000 0x1000>, + <0x89010000 0x1000>, + <0x89020000 0x1000>; + interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&rcc FMC_K>; + resets = <&rcc FMC_R>; + pinctrl-names = "default"; + pinctrl-0 = <&fmc_pins_a>; + #address-cells = <1>; + #size-cells = <0>; + + nand@0 { + reg = <0>; + nand-on-flash-bbt; + #address-cells = <1>; + #size-cells = <1>; + }; + }; diff --git a/doc/git-mailrc b/doc/git-mailrc index b75ebab02b..ec6d8bf8f4 100644 --- a/doc/git-mailrc +++ b/doc/git-mailrc @@ -26,7 +26,6 @@ alias iwamatsu Nobuhiro Iwamatsu <iwamatsu@nigauri.org> alias jaehoon Jaehoon Chung <jh80.chung@samsung.com> alias jagan Jagan Teki <jagan@openedev.com> alias jhersh Joe Hershberger <joe.hershberger@ni.com> -alias luka Luka Perkov <luka.perkov@sartura.hr> alias lukma Lukasz Majewski <lukma@denx.de> alias macpaul Macpaul Lin <macpaul@andestech.com> alias marex Marek Vasut <marex@denx.de> @@ -35,7 +34,6 @@ alias masahiro Masahiro Yamada <yamada.masahiro@socionext.com> alias mateusz Mateusz Kulikowski <mateusz.kulikowski@gmail.com> alias maxime Maxime Ripard <maxime.ripard@free-electrons.com> alias monstr Michal Simek <monstr@monstr.eu> -alias prafulla Prafulla Wadaskar <prafulla@marvell.com> alias prom Minkyu Kang <mk7.kang@samsung.com> alias ptomsich Philipp Tomsich <philipp.tomsich@theobroma-systems.com> alias sbabic Stefano Babic <sbabic@denx.de> @@ -56,7 +54,7 @@ alias arm uboot, aaribaud, trini alias at91 uboot, abiessmann alias davinci ti alias imx uboot, sbabic -alias kirkwood uboot, prafulla, luka, stroese +alias kirkwood uboot, stroese alias omap ti alias pxa uboot, marex alias rmobile uboot, iwamatsu |