Author: ian
Date: Tue Feb 26 22:50:01 2019
New Revision: 344610
URL: https://svnweb.freebsd.org/changeset/base/344610
Log:
Add manpages for at45d(4) and mx25l(4).
Added:
head/share/man/man4/at45d.4 (contents, props changed)
head/share/man/man4/mx25l.4 (contents, props changed)
Modified:
head/share/man/man4/Makefile
Modified: head/share/man/man4/Makefile
==============================================================================
--- head/share/man/man4/Makefile Tue Feb 26 22:34:29 2019
(r344609)
+++ head/share/man/man4/Makefile Tue Feb 26 22:50:01 2019
(r344610)
@@ -52,6 +52,7 @@ MAN= aac.4 \
${_apic.4} \
arcmsr.4 \
${_asmc.4} \
+ at45d.4 \
ata.4 \
ath.4 \
ath_ahb.4 \
@@ -301,6 +302,7 @@ MAN= aac.4 \
mvs.4 \
mwl.4 \
mwlfw.4 \
+ mx25l.4 \
mxge.4 \
my.4 \
nand.4 \
Added: head/share/man/man4/at45d.4
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/share/man/man4/at45d.4 Tue Feb 26 22:50:01 2019 (r344610)
@@ -0,0 +1,176 @@
+.\"
+.\" Copyright (c) 2019 Ian Lepore <i...@freebsd.org>
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\"
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd February 26, 2019
+.Dt AT45D 4
+.Os
+.Sh NAME
+.Nm at45d
+.Nd driver for DataFlash(tm) non-volatile storage devices
+.Sh SYNOPSIS
+To compile this driver into the kernel,
+place the following line in your
+kernel configuration file:
+.Bd -ragged -offset indent
+.Cd "device at45d"
+.Ed
+.Pp
+Alternatively, to load the driver as a
+module at boot time, place the following line in
+.Xr loader.conf 5 :
+.Bd -literal -offset indent
+at45d_load="YES"
+.Ed
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the family of non-volatile storage
+devices known collectively as DataFlash(tm).
+DataFlash chips typically have part numbers beginning with AT45DB.
+The
+.Nm
+driver supports only the SPI bus versions of each AT45DB device,
+indicated by the last digit of the part number being 1 or 2.
+.Pp
+The
+.Nm
+driver uses opcode 0x9f to read the manufacturer and device ID
+data to determine whether the device is supported.
+The device ID is looked up using a table of data within the driver
+which describes the attributes of each supported device,
+such as block size, sector size, and device capacity.
+When a supported device is found, the
+.Nm
+driver creates a disk device and makes it accessible at
+.Pa /dev/flash/at45d? .
+The new disk device is then tasted by the available
+.Xr geom 4
+modules as with any disk device.
+.Sh HARDWARE
+The
+.Nm
+driver provides support for the following devices:
+.Pp
+.Bl -bullet -compact
+.It
+AT45DB011B
+.It
+AT45DB021B
+.It
+AT45DB041x
+.It
+AT45DB081B
+.It
+AT45DB161x
+.It
+AT45DB321x
+.It
+AT45DB321x
+.It
+AT45DB641E
+.It
+AT45DB642x
+.El
+.Sh FDT CONFIGURATION
+On an
+.Xr fdt 4
+based system, the
+.Nm
+device is defined as a slave device subnode
+of the SPI bus controller node.
+All properties documented in the
+.Va spibus.txt
+bindings document can be used with the
+.Nm
+device.
+The most commonly-used ones are documented below.
+.Pp
+The following properties are required in the
+.Nm
+device subnode:
+.Bl -tag -width indent
+.It Va compatible
+Must be the string "atmel,at45".
+.It Va reg
+Chip select address of device.
+.It Va spi-max-frequency
+The maximum bus frequency to use when communicating with this slave device.
+Actual bus speed may be lower, depending on the capabilities of the SPI
+bus controller hardware.
+.El
+.Pp
+The following properties are optional for the
+.Nm
+device subnode:
+.Bl -tag -width indent
+.It Va spi-cpha
+Empty property indicating the slave device requires shifted clock
+phase (CPHA) mode.
+.It Va spi-cpol
+Empty property indicating the slave device requires inverse clock
+polarity (CPOL) mode.
+.It Va spi-cs-high
+Empty property indicating the slave device requires chip select active high.
+.El
+.Sh HINTS CONFIGURATION
+On a
+.Xr device.hints 5
+based system, such as
+.Li MIPS ,
+these values are configurable for
+.Nm :
+.Bl -tag -width indent
+.It Va hint.at45d.%d.at
+The spibus the
+.Nm
+instance is attached to.
+.It Va hint.at45d.%d.clock
+The maximum bus frequency to use when communicating with this device.
+Actual bus speed may be lower, depending on the capabilities of the SPI
+bus controller hardware.
+.It Va hint.at45d.%d.cs
+The chip-select number to assert when performing I/O for this device.
+Set the high bit (1 << 31) to invert the logic level of the chip select line.
+.It Va hint.at45d.%d.mode
+The SPI mode (0-3) to use when communicating with this device.
+.El
+.Sh FILES
+.Bl -tag -width /dev/flash/at45d?
+.It Pa /dev/flash/at45d?
+Provides read/write access to the storage device.
+.It Pa /dev/flash/spi?
+An alias for the
+.Pa /dev/at45d?
+device, for backwards compatibility with older versions of the driver.
+.El
+.Sh SEE ALSO
+.Xr fdt 4 ,
+.Xr geom 4
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Fx 6.0 .
Added: head/share/man/man4/mx25l.4
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/share/man/man4/mx25l.4 Tue Feb 26 22:50:01 2019 (r344610)
@@ -0,0 +1,209 @@
+.\"
+.\" Copyright (c) 2019 Ian Lepore <i...@freebsd.org>
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\"
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd February 26, 2019
+.Dt MX25L 4
+.Os
+.Sh NAME
+.Nm mx25l
+.Nd driver for SpiFlash(tm) compatible non-volatile storage devices
+.Sh SYNOPSIS
+To compile this driver into the kernel,
+place the following line in your
+kernel configuration file:
+.Bd -ragged -offset indent
+.Cd "device mx25l"
+.Ed
+.Pp
+Alternatively, to load the driver as a
+module at boot time, place the following line in
+.Xr loader.conf 5 :
+.Bd -literal -offset indent
+mx25l_load="YES"
+.Ed
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the family of non-volatile storage
+devices known collectively as SpiFlash(tm).
+SpiFlash chips typically have part numbers beginning with EN25,
+IS25, MX25, S25, SST25, or W25.
+.Pp
+The
+.Nm
+driver uses opcode 0x9f to read the manufacturer and device ID
+data to determine whether the device is supported.
+The device ID is looked up using a table of data within the driver
+which describes the attributes of each supported device,
+such as block size, sector size, and device capacity.
+When a supported device is found, the
+.Nm
+driver creates a disk device and makes it accessible at
+.Pa /dev/flash/mx25l? .
+The new disk device is then tasted by the available
+.Xr geom 4
+modules as with any disk device.
+.Sh HARDWARE
+The
+.Nm
+driver provides support for the following devices:
+.Pp
+.Bl -bullet -compact
+.It
+AT25DF641
+.It
+EN25F32
+.It
+EN25P32
+.It
+EN25P64
+.It
+EN25Q32
+.It
+EN25Q64
+.It
+GD25Q64
+.It
+M25P32
+.It
+M25P64
+.It
+MX25L1606E
+.It
+MX25LL128
+.It
+MX25LL256
+.It
+MX25LL32
+.It
+MX25LL64
+.It
+S25FL032
+.It
+S25FL064
+.It
+S25FL128
+.It
+S25FL256S
+.It
+SST25VF010A
+.It
+SST25VF032B
+.It
+W25Q128
+.It
+W25Q256
+.It
+W25Q32
+.It
+W25Q64
+.It
+W25Q64BV
+.It
+W25X32
+.It
+W25X64
+.El
+.Sh FDT CONFIGURATION
+On an
+.Xr fdt 4
+based system, the
+.Nm
+device is defined as a slave device subnode
+of the SPI bus controller node.
+All properties documented in the
+.Va spibus.txt
+bindings document can be used with the
+.Nm
+device.
+The most commonly-used ones are documented below.
+.Pp
+The following properties are required in the
+.Nm
+device subnode:
+.Bl -tag -width indent
+.It Va compatible
+Must be the string "jedec,spi-nor".
+.It Va reg
+Chip select address of device.
+.It Va spi-max-frequency
+The maximum bus frequency to use when communicating with this slave device.
+Actual bus speed may be lower, depending on the capabilities of the SPI
+bus controller hardware.
+.El
+.Pp
+The following properties are optional for the
+.Nm
+device subnode:
+.Bl -tag -width indent
+.It Va spi-cpha
+Empty property indicating the slave device requires shifted clock
+phase (CPHA) mode.
+.It Va spi-cpol
+Empty property indicating the slave device requires inverse clock
+polarity (CPOL) mode.
+.It Va spi-cs-high
+Empty property indicating the slave device requires chip select active high.
+.El
+.Sh HINTS CONFIGURATION
+On a
+.Xr device.hints 5
+based system, such as
+.Li MIPS ,
+these values are configurable for
+.Nm :
+.Bl -tag -width indent
+.It Va hint.mx25l.%d.at
+The spibus the
+.Nm
+instance is attached to.
+.It Va hint.mx25l.%d.clock
+The maximum bus frequency to use when communicating with this device.
+Actual bus speed may be lower, depending on the capabilities of the SPI
+bus controller hardware.
+.It Va hint.mx25l.%d.cs
+The chip-select number to assert when performing I/O for this device.
+Set the high bit (1 << 31) to invert the logic level of the chip select line.
+.It Va hint.mx25l.%d.mode
+The SPI mode (0-3) to use when communicating with this device.
+.El
+.Sh FILES
+.Bl -tag -width /dev/flash/mx25l?
+.It Pa /dev/flash/mx25l?
+Provides read/write access to the storage device.
+.It Pa /dev/flash/spi?
+An alias for the
+.Pa /dev/mx25l?
+device, for backwards compatibility with older versions of the driver.
+.El
+.Sh SEE ALSO
+.Xr fdt 4 ,
+.Xr geom 4
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Fx 8.0 .
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