Author: adrian
Date: Mon Mar 2 02:24:46 2015
New Revision: 279513
URL: https://svnweb.freebsd.org/changeset/base/279513
Log:
Bring over the initial QCA955x SoC support framework.
This is enough to bring up the basic SoC support.
What works thus far:
* The mips74k core, pll setup, and UART (or else well, stuff would
be really difficult..)
* both USB 2.0 EHCI controllers
* on-board 2GHz 3x3 wifi (the other variant has 2GHz/5GHz wifi on-chip);
* arge0 - not yet sure why arge1 isn't firing off interrupts and thus
handling traffic, but I will soon figure it out and fix it here.
Tested:
* AP135 reference design, QCA9558 SoC, pretending to be an 11n
2GHz AP.
TODO:
* There's an interrupt mux hooking up devices to IP2 and IP3 - but it's
not a read-and-clear or write-to-clear register. So, trying to use it
naively like I have been ends up with massive interrupt storms.
For now the things that share those interrupts can just take them as
shared interrupts and try to play nice.
* There's two PCIe root complexes /and/ one of them can actually be
a PCIe device endpoint. Yes, you heard right. I have to teach the
AR724x PCIe bridge code to handle multiple instances with multiple
memory/irq regions, and then there'll be RC support, but EP support
isn't on my TODO list.
* I'm not sure why arge1 isn't up and running. I'll go figure that
out soon and fix it here.
Thankyou to Qualcomm Atheros for providing me with hardware and
an abundance of documentation about these things.
Added:
head/sys/mips/conf/QCA955X_BASE (contents, props changed)
head/sys/mips/conf/QCA955X_BASE.hints (contents, props changed)
Added: head/sys/mips/conf/QCA955X_BASE
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/mips/conf/QCA955X_BASE Mon Mar 2 02:24:46 2015
(r279513)
@@ -0,0 +1,147 @@
+#
+# QCA955X_BASE -- Kernel configuration base file for the Qualcomm Atheros
+# QCA955x SoC.
+#
+# This file (and the hints file accompanying it) are not designed to be
+# used by themselves. Instead, users of this file should create a kernel
+# config file which includes this file (which gets the basic hints), then
+# override the default options (adding devices as needed) and adding
+# hints as needed (for example, the GPIO and LAN PHY.)
+#
+# $FreeBSD$
+#
+
+machine mips mips
+ident QCA955X_BASE
+cpu CPU_MIPS74KC
+makeoptions KERNLOADADDR=0x80050000
+options HZ=1000
+
+options BREAK_TO_DEBUGGER
+options ALT_BREAK_TO_DEBUGGER
+
+# options BOOTVERBOSE=10
+
+files "../atheros/files.ar71xx"
+hints "QCA955X_BASE.hints"
+
+makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
+# makeoptions MODULES_OVERRIDE="random gpio ar71xx if_gif if_gre if_bridge
bridgestp usb wlan wlan_xauth wlan_acl wlan_wep wlan_tkip wlan_ccmp
wlan_rssadapt wlan_amrr ath ath_ahb hwpmc"
+makeoptions MODULES_OVERRIDE=""
+
+options DDB
+options KDB
+options ALQ
+
+options SCHED_4BSD #4BSD scheduler
+options INET #InterNETworking
+#options INET6 #InterNETworking
+#options NFSCL #Network Filesystem Client
+options PSEUDOFS #Pseudo-filesystem framework
+options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
+
+# Don't include the SCSI/CAM strings in the default build
+options SCSI_NO_SENSE_STRINGS
+options SCSI_NO_OP_STRINGS
+
+# .. And no sysctl strings
+options NO_SYSCTL_DESCR
+
+# Limit IO size
+options NBUF=128
+
+# Limit UMTX hash size
+# options UMTX_NUM_CHAINS=64
+
+# PMC
+#options HWPMC_HOOKS
+#device hwpmc
+#device hwpmc_mips24k
+
+# options NFS_LEGACYRPC
+# Debugging for use in -current
+#options INVARIANTS
+#options INVARIANT_SUPPORT
+#options WITNESS
+#options WITNESS_SKIPSPIN
+options FFS #Berkeley Fast Filesystem
+#options SOFTUPDATES #Enable FFS soft updates support
+#options UFS_ACL #Support for access control lists
+#options UFS_DIRHASH #Improve performance on big directories
+options NO_FFS_SNAPSHOT # We don't require snapshot support
+
+# Wireless NIC cards
+options IEEE80211_DEBUG
+options IEEE80211_SUPPORT_MESH
+options IEEE80211_SUPPORT_TDMA
+options IEEE80211_SUPPORT_SUPERG
+options IEEE80211_ALQ # 802.11 ALQ logging support
+device wlan # 802.11 support
+device wlan_wep # 802.11 WEP support
+device wlan_ccmp # 802.11 CCMP support
+device wlan_tkip # 802.11 TKIP support
+device wlan_xauth # 802.11 hostap support
+
+# ath(4)
+device ath # Atheros network device
+device ath_rate_sample
+device ath_ahb # Atheros host bus glue
+options ATH_DEBUG
+options ATH_DIAGAPI
+option ATH_ENABLE_11N
+option AH_DEBUG_ALQ
+
+#device ath_hal
+device ath_ar9300 # AR9330 HAL; no need for the others
+option AH_DEBUG
+option AH_SUPPORT_AR5416 # 11n HAL support
+option AH_SUPPORT_QCA9550 # Chipset support
+option AH_DEBUG_ALQ
+option AH_AR5416_INTERRUPT_MITIGATION
+
+device mii
+device arge
+options ARGE_DEBUG
+
+device usb
+options USB_EHCI_BIG_ENDIAN_DESC # handle big-endian byte order
+options USB_DEBUG
+options USB_HOST_ALIGN=32 # AR71XX (MIPS in general?)
requires this
+device ehci
+
+device pci
+# XXX TODO: need to write a qca955x_pci bridge
+# .. since it now handles >1 PCIe bus and the reset
+# registers may have changed a bit.
+# device ar724x_pci
+
+device scbus
+device umass
+device da
+
+device spibus
+device ar71xx_spi
+device mx25l
+device ar71xx_wdog
+
+device uart
+device uart_ar71xx
+
+device ar71xx_apb
+# Until some better interrupt handling is shoehorned into qca955x_apb,
+# we'll have to stick to shared interrupts for IP2/IP3 demux.
+# device qca955x_apb
+
+device loop
+device ether
+device md
+device bpf
+device random
+device if_bridge
+device gpio
+device gpioled
+
+#options KTR
+#options KTR_MASK=(KTR_INTR)
+#options KTR_COMPILE=(KTR_INTR)
+#options KTR_VERBOSE
Added: head/sys/mips/conf/QCA955X_BASE.hints
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/mips/conf/QCA955X_BASE.hints Mon Mar 2 02:24:46 2015
(r279513)
@@ -0,0 +1,79 @@
+# This file (and the kernel config file accompanying it) are not designed
+# to be used by themselves. Instead, users of this file should create a
+# kernel config file which includes this file (which gets the basic hints),
+# then override the default options (adding devices as needed) and adding
+# hints as needed (for example, the GPIO and LAN PHY.)
+
+# $FreeBSD$
+
+hint.apb.0.at="nexus0"
+# The default APB is on IP6 (irq4); we need to add
+# the two new ones (IP2, IP3) to this and extend
+# the irq ranges appropriately.
+hint.apb.0.irq=4
+
+# uart0
+hint.uart.0.at="apb0"
+# NB: This isn't an ns8250 UART
+hint.uart.0.maddr=0x18020003
+hint.uart.0.msize=0x18
+hint.uart.0.irq=3
+
+# ehci - on IP3
+hint.ehci.0.at="nexus0"
+hint.ehci.0.maddr=0x1b000100
+hint.ehci.0.msize=0x00001000
+hint.ehci.0.irq=1
+
+hint.ehci.1.at="nexus0"
+hint.ehci.1.maddr=0x1b400100
+hint.ehci.1.msize=0x00001000
+hint.ehci.1.irq=1
+
+# PCIe 1: qca955x_int0 (IP2)
+
+# pci - XXX no maddr/msize, grr!
+hint.pcib.0.at="nexus0"
+hint.pcib.0.irq=0
+
+# XXX TODO: PCIe 1: qca955x_int1 (IP3)
+
+# IP4
+hint.arge.0.at="nexus0"
+hint.arge.0.maddr=0x19000000
+hint.arge.0.msize=0x1000
+hint.arge.0.irq=2
+
+# IP5
+hint.arge.1.at="nexus0"
+hint.arge.1.maddr=0x1a000000
+hint.arge.1.msize=0x1000
+hint.arge.1.irq=3
+
+# ath0 - connected via IP2 mux
+hint.ath.0.at="nexus0"
+hint.ath.0.maddr=0x18100000
+hint.ath.0.msize=0x20000
+hint.ath.0.irq=0
+hint.ath.0.vendor_id=0x168c
+hint.ath.0.device_id=0x0039
+# Set this to define where the ath calibration data
+# should be fetched from in physical memory.
+# hint.ath.0.eepromaddr=0x1fff1000
+
+# SPI flash
+hint.spi.0.at="nexus0"
+hint.spi.0.maddr=0x1f000000
+hint.spi.0.msize=0x10
+
+hint.mx25l.0.at="spibus0"
+hint.mx25l.0.cs=0
+
+# Watchdog
+hint.ar71xx_wdog.0.at="nexus0"
+
+# The GPIO function and pin mask is configured per-board
+hint.gpio.0.at="apb0"
+hint.gpio.0.maddr=0x18040000
+hint.gpio.0.msize=0x1000
+hint.gpio.0.irq=2
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