freebsd-skq/sys/arm/conf/CUBIEBOARD
loos 608f583b4a Add AHCI attachment code for Allwinner A10/A20 SoCs.
The Allwinner SoC has an AHCI device on its internal main bus rather
than the PCI bus.  This SoC is somewhat underdocumented, and its SATA
controller is no exception.  The methods to support this chip were
harvested from the Linux Allwinner SDK, and then constants invented to
describe what's going on based on low-level constants contained in the
SATA standard and guess work.

This SoC requires a specific AHCI channel setup in order to start the
operations on the channel properly.

Clock setup and AHCI channel setup idea came from NetBSD.

Tested on Cubieboard 2 and Banana pi (and attachment on Cubieboard by
Pratik Singhal).

Differential Revision:	https://reviews.freebsd.org/D737
Submitted by:	imp
Reviewed by:	imp, ganbold, mav, andrew
2015-07-03 14:11:01 +00:00

111 lines
3.0 KiB
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#
# CUBIEBOARD -- Custom configuration for the CUBIEBOARD ARM development
# platform, check out http://www.cubieboard.org
#
# For more information on this file, please read the config(5) manual page,
# and/or the handbook section on Kernel Configuration Files:
#
# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD$
ident CUBIEBOARD
include "std.armv6"
include "../allwinner/std.a10"
options HZ=100
options SCHED_4BSD # 4BSD scheduler
# Debugging for use in -current
makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
options ALT_BREAK_TO_DEBUGGER
#options VERBOSE_SYSINIT # Enable verbose sysinit messages
options KDB # Enable kernel debugger support
# For minimum debugger support (stable branch) use:
#options KDB_TRACE # Print a stack trace for a panic
# For full debugger support use this instead:
options DDB # Enable the kernel debugger
options INVARIANTS # Enable calls of extra sanity checking
options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS
options WITNESS # Enable checks to detect deadlocks and cycles
options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
#options DIAGNOSTIC
# NFS root from boopt/dhcp
#options BOOTP
#options BOOTP_NFSROOT
#options BOOTP_COMPAT
#options BOOTP_NFSV3
#options BOOTP_WIRED_TO=cpsw0
# Boot device is 2nd slice on MMC/SD card
options ROOTDEVNAME=\"ufs:/dev/da0s2\"
# MMC/SD/SDIO Card slot support
device mmc # mmc/sd bus
device mmcsd # mmc/sd flash cards
# ATA controllers
device ahci # AHCI-compatible SATA controllers
#device ata # Legacy ATA/SATA controllers
#options ATA_STATIC_ID # Static device numbering
# Console and misc
device uart
device uart_ns8250
device pty
device snp
device md
device random # Entropy device
# I2C support
#device iicbus
#device iic
# GPIO
device gpio
device scbus # SCSI bus (required for ATA/SCSI)
device da # Direct Access (disks)
device pass # Passthrough device (direct ATA/SCSI access)
# USB support
options USB_HOST_ALIGN=64 # Align usb buffers to cache line size.
device usb
options USB_DEBUG
#options USB_REQ_DEBUG
#options USB_VERBOSE
#device uhci
#device ohci
device ehci
device umass
# Ethernet
device loop
device ether
device mii
device bpf
device emac
# USB ethernet support, requires miibus
device miibus
# Flattened Device Tree
options FDT # Configure using FDT/DTB data
options FDT_DTB_STATIC
makeoptions FDT_DTS_FILE=cubieboard.dts
makeoptions MODULES_EXTRA=dtb/allwinner