[PATCH 2/3 v3] mtd/powerpc: Factor out MTD physmap bindings into mtd-physmap.txt
Grant Likely
grant.likely at secretlab.ca
Thu Apr 16 23:01:25 EST 2009
Looks good, I'll pick this up
g.
On Thu, Apr 16, 2009 at 6:10 AM, Stefan Roese <sr at denx.de> wrote:
> It's easier to find bindings descriptions in separate files. So let's factor out
> the MTD physmap bindings into Documentation/powerpc/dts-bindings/mtd-physmap.txt
> to not clutter booting-without-of.txt more.
>
> Signed-off-by: Stefan Roese <sr at denx.de>
> Acked-by: Grant Likely <grant.likely at secretlab.ca>
> ---
> Changes in ver3:
> - Added short patch desciption to commit message.
>
> Documentation/powerpc/booting-without-of.txt | 89 +++-----------------
> Documentation/powerpc/dts-bindings/mtd-physmap.txt | 63 ++++++++++++++
> 2 files changed, 75 insertions(+), 77 deletions(-)
> create mode 100644 Documentation/powerpc/dts-bindings/mtd-physmap.txt
>
> diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
> index 0ab0230..d16b7a1 100644
> --- a/Documentation/powerpc/booting-without-of.txt
> +++ b/Documentation/powerpc/booting-without-of.txt
> @@ -43,12 +43,11 @@ Table of Contents
> 2) Representing devices without a current OF specification
> a) PHY nodes
> b) Interrupt controllers
> - c) CFI or JEDEC memory-mapped NOR flash
> - d) 4xx/Axon EMAC ethernet nodes
> - e) Xilinx IP cores
> - f) USB EHCI controllers
> - g) MDIO on GPIOs
> - h) SPI busses
> + c) 4xx/Axon EMAC ethernet nodes
> + d) Xilinx IP cores
> + e) USB EHCI controllers
> + f) MDIO on GPIOs
> + g) SPI busses
>
> VII - Marvell Discovery mv64[345]6x System Controller chips
> 1) The /system-controller node
> @@ -999,7 +998,7 @@ compatibility.
> translation of SOC addresses for memory mapped SOC registers.
> - bus-frequency: Contains the bus frequency for the SOC node.
> Typically, the value of this field is filled in by the boot
> - loader.
> + loader.
>
>
> Recommended properties:
> @@ -1287,71 +1286,7 @@ platforms are moved over to use the flattened-device-tree model.
> device_type = "open-pic";
> };
>
> - c) CFI or JEDEC memory-mapped NOR flash
> -
> - Flash chips (Memory Technology Devices) are often used for solid state
> - file systems on embedded devices.
> -
> - - compatible : should contain the specific model of flash chip(s)
> - used, if known, followed by either "cfi-flash" or "jedec-flash"
> - - reg : Address range of the flash chip
> - - bank-width : Width (in bytes) of the flash bank. Equal to the
> - device width times the number of interleaved chips.
> - - device-width : (optional) Width of a single flash chip. If
> - omitted, assumed to be equal to 'bank-width'.
> - - #address-cells, #size-cells : Must be present if the flash has
> - sub-nodes representing partitions (see below). In this case
> - both #address-cells and #size-cells must be equal to 1.
> -
> - For JEDEC compatible devices, the following additional properties
> - are defined:
> -
> - - vendor-id : Contains the flash chip's vendor id (1 byte).
> - - device-id : Contains the flash chip's device id (1 byte).
> -
> - In addition to the information on the flash bank itself, the
> - device tree may optionally contain additional information
> - describing partitions of the flash address space. This can be
> - used on platforms which have strong conventions about which
> - portions of the flash are used for what purposes, but which don't
> - use an on-flash partition table such as RedBoot.
> -
> - Each partition is represented as a sub-node of the flash device.
> - Each node's name represents the name of the corresponding
> - partition of the flash device.
> -
> - Flash partitions
> - - reg : The partition's offset and size within the flash bank.
> - - label : (optional) The label / name for this flash partition.
> - If omitted, the label is taken from the node name (excluding
> - the unit address).
> - - read-only : (optional) This parameter, if present, is a hint to
> - Linux that this flash partition should only be mounted
> - read-only. This is usually used for flash partitions
> - containing early-boot firmware images or data which should not
> - be clobbered.
> -
> - Example:
> -
> - flash at ff000000 {
> - compatible = "amd,am29lv128ml", "cfi-flash";
> - reg = <ff000000 01000000>;
> - bank-width = <4>;
> - device-width = <1>;
> - #address-cells = <1>;
> - #size-cells = <1>;
> - fs at 0 {
> - label = "fs";
> - reg = <0 f80000>;
> - };
> - firmware at f80000 {
> - label ="firmware";
> - reg = <f80000 80000>;
> - read-only;
> - };
> - };
> -
> - d) 4xx/Axon EMAC ethernet nodes
> + c) 4xx/Axon EMAC ethernet nodes
>
> The EMAC ethernet controller in IBM and AMCC 4xx chips, and also
> the Axon bridge. To operate this needs to interact with a ths
> @@ -1499,7 +1434,7 @@ platforms are moved over to use the flattened-device-tree model.
> available.
> For Axon: 0x0000012a
>
> - e) Xilinx IP cores
> + d) Xilinx IP cores
>
> The Xilinx EDK toolchain ships with a set of IP cores (devices) for use
> in Xilinx Spartan and Virtex FPGAs. The devices cover the whole range
> @@ -1761,7 +1696,7 @@ platforms are moved over to use the flattened-device-tree model.
> listed above, nodes for these devices should include a phy-handle
> property, and may include other common network device properties
> like local-mac-address.
> -
> +
> iv) Xilinx Uartlite
>
> Xilinx uartlite devices are simple fixed speed serial ports.
> @@ -1793,7 +1728,7 @@ platforms are moved over to use the flattened-device-tree model.
> - reg-offset : A value of 3 is required
> - reg-shift : A value of 2 is required
>
> - f) USB EHCI controllers
> + e) USB EHCI controllers
>
> Required properties:
> - compatible : should be "usb-ehci".
> @@ -1819,7 +1754,7 @@ platforms are moved over to use the flattened-device-tree model.
> big-endian;
> };
>
> - g) MDIO on GPIOs
> + f) MDIO on GPIOs
>
> Currently defined compatibles:
> - virtual,gpio-mdio
> @@ -1839,7 +1774,7 @@ platforms are moved over to use the flattened-device-tree model.
> &qe_pio_c 6>;
> };
>
> - h) SPI (Serial Peripheral Interface) busses
> + g) SPI (Serial Peripheral Interface) busses
>
> SPI busses can be described with a node for the SPI master device
> and a set of child nodes for each SPI slave on the bus. For this
> diff --git a/Documentation/powerpc/dts-bindings/mtd-physmap.txt b/Documentation/powerpc/dts-bindings/mtd-physmap.txt
> new file mode 100644
> index 0000000..cd474f9
> --- /dev/null
> +++ b/Documentation/powerpc/dts-bindings/mtd-physmap.txt
> @@ -0,0 +1,63 @@
> +CFI or JEDEC memory-mapped NOR flash
> +
> +Flash chips (Memory Technology Devices) are often used for solid state
> +file systems on embedded devices.
> +
> + - compatible : should contain the specific model of flash chip(s)
> + used, if known, followed by either "cfi-flash" or "jedec-flash"
> + - reg : Address range of the flash chip
> + - bank-width : Width (in bytes) of the flash bank. Equal to the
> + device width times the number of interleaved chips.
> + - device-width : (optional) Width of a single flash chip. If
> + omitted, assumed to be equal to 'bank-width'.
> + - #address-cells, #size-cells : Must be present if the flash has
> + sub-nodes representing partitions (see below). In this case
> + both #address-cells and #size-cells must be equal to 1.
> +
> +For JEDEC compatible devices, the following additional properties
> +are defined:
> +
> + - vendor-id : Contains the flash chip's vendor id (1 byte).
> + - device-id : Contains the flash chip's device id (1 byte).
> +
> +In addition to the information on the flash bank itself, the
> +device tree may optionally contain additional information
> +describing partitions of the flash address space. This can be
> +used on platforms which have strong conventions about which
> +portions of the flash are used for what purposes, but which don't
> +use an on-flash partition table such as RedBoot.
> +
> +Each partition is represented as a sub-node of the flash device.
> +Each node's name represents the name of the corresponding
> +partition of the flash device.
> +
> +Flash partitions
> + - reg : The partition's offset and size within the flash bank.
> + - label : (optional) The label / name for this flash partition.
> + If omitted, the label is taken from the node name (excluding
> + the unit address).
> + - read-only : (optional) This parameter, if present, is a hint to
> + Linux that this flash partition should only be mounted
> + read-only. This is usually used for flash partitions
> + containing early-boot firmware images or data which should not
> + be clobbered.
> +
> +Example:
> +
> + flash at ff000000 {
> + compatible = "amd,am29lv128ml", "cfi-flash";
> + reg = <ff000000 01000000>;
> + bank-width = <4>;
> + device-width = <1>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + fs at 0 {
> + label = "fs";
> + reg = <0 f80000>;
> + };
> + firmware at f80000 {
> + label ="firmware";
> + reg = <f80000 80000>;
> + read-only;
> + };
> + };
> --
> 1.6.2.3
>
>
--
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
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