[POWERPC] Linkstation / kurobox support
Support for the Kurobox(HG)/LinkStation-I NAS systems by Buffalo Technology, should be also applicable to the PPC TeraStation family. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Guennadi Liakhovetski
Paul Mackerras
parent
57933f8fbe
commit
04d76b937b
6 changed files with 2089 additions and 3 deletions
148
arch/powerpc/boot/dts/kuroboxHG.dts
Normal file
148
arch/powerpc/boot/dts/kuroboxHG.dts
Normal file
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@ -0,0 +1,148 @@
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/*
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* Device Tree Souce for Buffalo KuroboxHG
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*
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* Choose CONFIG_LINKSTATION to build a kernel for KuroboxHG, or use
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* the default configuration linkstation_defconfig.
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*
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* Based on sandpoint.dts
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*
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* 2006 (c) G. Liakhovetski <g.liakhovetski@gmx.de>
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*
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* This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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XXXX add flash parts, rtc, ??
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build with: "dtc -f -I dts -O dtb -o kuroboxHG.dtb -V 16 kuroboxHG.dts"
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*/
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/ {
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linux,phandle = <1000>;
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model = "KuroboxHG";
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compatible = "linkstation";
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#address-cells = <1>;
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#size-cells = <1>;
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cpus {
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linux,phandle = <2000>;
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#cpus = <1>;
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#address-cells = <1>;
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#size-cells = <0>;
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PowerPC,603e { /* Really 8241 */
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linux,phandle = <2100>;
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linux,boot-cpu;
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device_type = "cpu";
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reg = <0>;
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clock-frequency = <fdad680>; /* Fixed by bootwrapper */
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timebase-frequency = <1F04000>; /* Fixed by bootwrapper */
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bus-frequency = <0>; /* From bootloader */
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/* Following required by dtc but not used */
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i-cache-line-size = <0>;
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d-cache-line-size = <0>;
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i-cache-size = <4000>;
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d-cache-size = <4000>;
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};
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};
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memory {
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linux,phandle = <3000>;
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device_type = "memory";
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reg = <00000000 08000000>;
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};
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soc10x { /* AFAICT need to make soc for 8245's uarts to be defined */
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linux,phandle = <4000>;
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#address-cells = <1>;
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#size-cells = <1>;
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#interrupt-cells = <2>;
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device_type = "soc";
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compatible = "mpc10x";
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store-gathering = <0>; /* 0 == off, !0 == on */
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reg = <80000000 00100000>;
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ranges = <80000000 80000000 70000000 /* pci mem space */
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fc000000 fc000000 00100000 /* EUMB */
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fe000000 fe000000 00c00000 /* pci i/o space */
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fec00000 fec00000 00300000 /* pci cfg regs */
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fef00000 fef00000 00100000>; /* pci iack */
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i2c@80003000 {
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linux,phandle = <4300>;
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device_type = "i2c";
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compatible = "fsl-i2c";
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reg = <80003000 1000>;
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interrupts = <5 2>;
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interrupt-parent = <4400>;
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};
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serial@80004500 {
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linux,phandle = <4511>;
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device_type = "serial";
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compatible = "ns16550";
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reg = <80004500 8>;
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clock-frequency = <7c044a8>;
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current-speed = <2580>;
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interrupts = <9 2>;
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interrupt-parent = <4400>;
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};
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serial@80004600 {
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linux,phandle = <4512>;
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device_type = "serial";
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compatible = "ns16550";
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reg = <80004600 8>;
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clock-frequency = <7c044a8>;
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current-speed = <e100>;
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interrupts = <a 0>;
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interrupt-parent = <4400>;
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};
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pic@80040000 {
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linux,phandle = <4400>;
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#interrupt-cells = <2>;
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#address-cells = <0>;
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device_type = "open-pic";
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compatible = "chrp,open-pic";
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interrupt-controller;
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reg = <80040000 40000>;
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built-in;
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};
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pci@fec00000 {
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linux,phandle = <4500>;
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#address-cells = <3>;
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#size-cells = <2>;
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#interrupt-cells = <1>;
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device_type = "pci";
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compatible = "mpc10x-pci";
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reg = <fec00000 400000>;
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ranges = <01000000 0 0 fe000000 0 00c00000
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02000000 0 80000000 80000000 0 70000000>;
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bus-range = <0 ff>;
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clock-frequency = <7f28155>;
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interrupt-parent = <4400>;
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interrupt-map-mask = <f800 0 0 7>;
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interrupt-map = <
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/* IDSEL 0x11 - IRQ0 ETH */
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5800 0 0 1 4400 0 1
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5800 0 0 2 4400 1 1
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5800 0 0 3 4400 2 1
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5800 0 0 4 4400 3 1
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/* IDSEL 0x12 - IRQ1 IDE0 */
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6000 0 0 1 4400 1 1
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6000 0 0 2 4400 2 1
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6000 0 0 3 4400 3 1
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6000 0 0 4 4400 0 1
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/* IDSEL 0x14 - IRQ3 USB2.0 */
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7000 0 0 1 4400 3 1
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7000 0 0 2 4400 3 1
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7000 0 0 3 4400 3 1
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7000 0 0 4 4400 3 1
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>;
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};
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};
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};
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1583
arch/powerpc/configs/linkstation_defconfig
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1583
arch/powerpc/configs/linkstation_defconfig
Normal file
File diff suppressed because it is too large
Load diff
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@ -74,6 +74,18 @@ config SANDPOINT
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Select SANDPOINT if configuring for a Motorola Sandpoint X3
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(any flavor).
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config LINKSTATION
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bool "Linkstation / Kurobox(HG) from Buffalo"
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select MPIC
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select FSL_SOC
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select PPC_UDBG_16550 if SERIAL_8250
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help
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Select LINKSTATION if configuring for one of PPC- (MPC8241)
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based NAS systems from Buffalo Technology. So far only
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KuroboxHG has been tested. In the future classical Kurobox,
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Linkstation-I HD-HLAN and HD-HGLAN versions, and PPC-based
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Terastation systems should be supported too.
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config MPC7448HPC2
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bool "Freescale MPC7448HPC2(Taiga)"
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select TSI108_BRIDGE
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@ -196,7 +208,7 @@ config PPC_GEN550
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depends on SANDPOINT || SPRUCE || PPLUS || \
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PRPMC750 || PRPMC800 || LOPEC || \
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(EV64260 && !SERIAL_MPSC) || CHESTNUT || RADSTONE_PPC7D || \
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83xx
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83xx || LINKSTATION
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default y
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config FORCE
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@ -270,13 +282,13 @@ config EPIC_SERIAL_MODE
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config MPC10X_BRIDGE
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bool
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depends on POWERPMC250 || LOPEC || SANDPOINT
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depends on POWERPMC250 || LOPEC || SANDPOINT || LINKSTATION
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select PPC_INDIRECT_PCI
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default y
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config MPC10X_OPENPIC
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bool
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depends on POWERPMC250 || LOPEC || SANDPOINT
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depends on POWERPMC250 || LOPEC || SANDPOINT || LINKSTATION
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default y
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config MPC10X_STORE_GATHERING
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@ -2,3 +2,4 @@
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# Makefile for the 6xx/7xx/7xxxx linux kernel.
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#
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obj-$(CONFIG_MPC7448HPC2) += mpc7448_hpc2.o
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obj-$(CONFIG_LINKSTATION) += linkstation.o ls_uart.o
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211
arch/powerpc/platforms/embedded6xx/linkstation.c
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211
arch/powerpc/platforms/embedded6xx/linkstation.c
Normal file
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@ -0,0 +1,211 @@
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/*
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* Board setup routines for the Buffalo Linkstation / Kurobox Platform.
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*
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* Copyright (C) 2006 G. Liakhovetski (g.liakhovetski@gmx.de)
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*
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* Based on sandpoint.c by Mark A. Greer
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of
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* any kind, whether express or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/initrd.h>
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#include <linux/root_dev.h>
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#include <linux/mtd/physmap.h>
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#include <asm/time.h>
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#include <asm/prom.h>
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#include <asm/mpic.h>
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#include <asm/mpc10x.h>
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#include <asm/pci-bridge.h>
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static struct mtd_partition linkstation_physmap_partitions[] = {
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{
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.name = "mtd_firmimg",
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.offset = 0x000000,
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.size = 0x300000,
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},
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{
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.name = "mtd_bootcode",
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.offset = 0x300000,
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.size = 0x070000,
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},
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{
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.name = "mtd_status",
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.offset = 0x370000,
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.size = 0x010000,
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},
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{
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.name = "mtd_conf",
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.offset = 0x380000,
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.size = 0x080000,
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},
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{
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.name = "mtd_allflash",
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.offset = 0x000000,
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.size = 0x400000,
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},
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{
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.name = "mtd_data",
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.offset = 0x310000,
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.size = 0x0f0000,
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},
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};
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static int __init add_bridge(struct device_node *dev)
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{
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int len;
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struct pci_controller *hose;
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int *bus_range;
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printk("Adding PCI host bridge %s\n", dev->full_name);
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bus_range = (int *) get_property(dev, "bus-range", &len);
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if (bus_range == NULL || len < 2 * sizeof(int))
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printk(KERN_WARNING "Can't get bus-range for %s, assume"
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" bus 0\n", dev->full_name);
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hose = pcibios_alloc_controller();
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if (hose == NULL)
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return -ENOMEM;
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hose->first_busno = bus_range ? bus_range[0] : 0;
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hose->last_busno = bus_range ? bus_range[1] : 0xff;
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hose->arch_data = dev;
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setup_indirect_pci(hose, 0xfec00000, 0xfee00000);
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/* Interpret the "ranges" property */
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/* This also maps the I/O region and sets isa_io/mem_base */
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pci_process_bridge_OF_ranges(hose, dev, 1);
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return 0;
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}
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static void __init linkstation_setup_arch(void)
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{
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struct device_node *np;
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#ifdef CONFIG_MTD_PHYSMAP
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physmap_set_partitions(linkstation_physmap_partitions,
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ARRAY_SIZE(linkstation_physmap_partitions));
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#endif
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#ifdef CONFIG_BLK_DEV_INITRD
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if (initrd_start)
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ROOT_DEV = Root_RAM0;
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else
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#endif
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#ifdef CONFIG_ROOT_NFS
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ROOT_DEV = Root_NFS;
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#else
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ROOT_DEV = Root_HDA1;
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#endif
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/* Lookup PCI host bridges */
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for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
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add_bridge(np);
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printk(KERN_INFO "BUFFALO Network Attached Storage Series\n");
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printk(KERN_INFO "(C) 2002-2005 BUFFALO INC.\n");
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}
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/*
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* Interrupt setup and service. Interrrupts on the linkstation come
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* from the four PCI slots plus onboard 8241 devices: I2C, DUART.
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*/
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static void __init linkstation_init_IRQ(void)
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{
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struct mpic *mpic;
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struct device_node *dnp;
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void *prop;
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int size;
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phys_addr_t paddr;
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dnp = of_find_node_by_type(NULL, "open-pic");
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if (dnp == NULL)
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return;
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prop = (struct device_node *)get_property(dnp, "reg", &size);
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paddr = (phys_addr_t)of_translate_address(dnp, prop);
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mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET, 4, 32, " EPIC ");
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BUG_ON(mpic == NULL);
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/* PCI IRQs */
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mpic_assign_isu(mpic, 0, paddr + 0x10200);
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/* I2C */
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mpic_assign_isu(mpic, 1, paddr + 0x11000);
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/* ttyS0, ttyS1 */
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mpic_assign_isu(mpic, 2, paddr + 0x11100);
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mpic_init(mpic);
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}
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extern void avr_uart_configure(void);
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extern void avr_uart_send(const char);
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static void linkstation_restart(char *cmd)
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{
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local_irq_disable();
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/* Reset system via AVR */
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avr_uart_configure();
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/* Send reboot command */
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avr_uart_send('C');
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for(;;) /* Spin until reset happens */
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avr_uart_send('G'); /* "kick" */
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}
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static void linkstation_power_off(void)
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{
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local_irq_disable();
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/* Power down system via AVR */
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avr_uart_configure();
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/* send shutdown command */
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avr_uart_send('E');
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for(;;) /* Spin until power-off happens */
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avr_uart_send('G'); /* "kick" */
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/* NOTREACHED */
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}
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static void linkstation_halt(void)
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{
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linkstation_power_off();
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/* NOTREACHED */
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}
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static void linkstation_show_cpuinfo(struct seq_file *m)
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{
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seq_printf(m, "vendor\t\t: Buffalo Technology\n");
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seq_printf(m, "machine\t\t: Linkstation I/Kurobox(HG)\n");
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}
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static int __init linkstation_probe(void)
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{
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unsigned long root;
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root = of_get_flat_dt_root();
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if (!of_flat_dt_is_compatible(root, "linkstation"))
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return 0;
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return 1;
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}
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define_machine(linkstation){
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.name = "Buffalo Linkstation",
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.probe = linkstation_probe,
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.setup_arch = linkstation_setup_arch,
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.init_IRQ = linkstation_init_IRQ,
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.show_cpuinfo = linkstation_show_cpuinfo,
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.get_irq = mpic_get_irq,
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.restart = linkstation_restart,
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.power_off = linkstation_power_off,
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.halt = linkstation_halt,
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.calibrate_decr = generic_calibrate_decr,
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};
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131
arch/powerpc/platforms/embedded6xx/ls_uart.c
Normal file
131
arch/powerpc/platforms/embedded6xx/ls_uart.c
Normal file
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@ -0,0 +1,131 @@
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#include <linux/workqueue.h>
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#include <linux/string.h>
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#include <linux/delay.h>
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#include <linux/serial_reg.h>
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#include <linux/serial_8250.h>
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#include <asm/io.h>
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#include <asm/mpc10x.h>
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#include <asm/ppc_sys.h>
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#include <asm/prom.h>
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#include <asm/termbits.h>
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static void __iomem *avr_addr;
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static unsigned long avr_clock;
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static struct work_struct wd_work;
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static void wd_stop(void *unused)
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{
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const char string[] = "AAAAFFFFJJJJ>>>>VVVV>>>>ZZZZVVVVKKKK";
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int i = 0, rescue = 8;
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int len = strlen(string);
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while (rescue--) {
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int j;
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char lsr = in_8(avr_addr + UART_LSR);
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if (lsr & (UART_LSR_THRE | UART_LSR_TEMT)) {
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for (j = 0; j < 16 && i < len; j++, i++)
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out_8(avr_addr + UART_TX, string[i]);
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if (i == len) {
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/* Read "OK" back: 4ms for the last "KKKK"
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plus a couple bytes back */
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msleep(7);
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printk("linkstation: disarming the AVR watchdog: ");
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while (in_8(avr_addr + UART_LSR) & UART_LSR_DR)
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printk("%c", in_8(avr_addr + UART_RX));
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break;
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}
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}
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msleep(17);
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}
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printk("\n");
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}
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#define AVR_QUOT(clock) ((clock) + 8 * 9600) / (16 * 9600)
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void avr_uart_configure(void)
|
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{
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unsigned char cval = UART_LCR_WLEN8;
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unsigned int quot = AVR_QUOT(avr_clock);
|
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if (!avr_addr || !avr_clock)
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return;
|
||||
|
||||
out_8(avr_addr + UART_LCR, cval); /* initialise UART */
|
||||
out_8(avr_addr + UART_MCR, 0);
|
||||
out_8(avr_addr + UART_IER, 0);
|
||||
|
||||
cval |= UART_LCR_STOP | UART_LCR_PARITY | UART_LCR_EPAR;
|
||||
|
||||
out_8(avr_addr + UART_LCR, cval); /* Set character format */
|
||||
|
||||
out_8(avr_addr + UART_LCR, cval | UART_LCR_DLAB); /* set DLAB */
|
||||
out_8(avr_addr + UART_DLL, quot & 0xff); /* LS of divisor */
|
||||
out_8(avr_addr + UART_DLM, quot >> 8); /* MS of divisor */
|
||||
out_8(avr_addr + UART_LCR, cval); /* reset DLAB */
|
||||
out_8(avr_addr + UART_FCR, UART_FCR_ENABLE_FIFO); /* enable FIFO */
|
||||
}
|
||||
|
||||
void avr_uart_send(const char c)
|
||||
{
|
||||
if (!avr_addr || !avr_clock)
|
||||
return;
|
||||
|
||||
out_8(avr_addr + UART_TX, c);
|
||||
out_8(avr_addr + UART_TX, c);
|
||||
out_8(avr_addr + UART_TX, c);
|
||||
out_8(avr_addr + UART_TX, c);
|
||||
}
|
||||
|
||||
static void __init ls_uart_init(void)
|
||||
{
|
||||
local_irq_disable();
|
||||
|
||||
#ifndef CONFIG_SERIAL_8250
|
||||
out_8(avr_addr + UART_FCR, UART_FCR_ENABLE_FIFO); /* enable FIFO */
|
||||
out_8(avr_addr + UART_FCR, UART_FCR_ENABLE_FIFO |
|
||||
UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT); /* clear FIFOs */
|
||||
out_8(avr_addr + UART_FCR, 0);
|
||||
out_8(avr_addr + UART_IER, 0);
|
||||
|
||||
/* Clear up interrupts */
|
||||
(void) in_8(avr_addr + UART_LSR);
|
||||
(void) in_8(avr_addr + UART_RX);
|
||||
(void) in_8(avr_addr + UART_IIR);
|
||||
(void) in_8(avr_addr + UART_MSR);
|
||||
#endif
|
||||
avr_uart_configure();
|
||||
|
||||
local_irq_enable();
|
||||
}
|
||||
|
||||
static int __init ls_uarts_init(void)
|
||||
{
|
||||
struct device_node *avr;
|
||||
phys_addr_t phys_addr;
|
||||
int len;
|
||||
|
||||
avr = of_find_node_by_path("/soc10x/serial@80004500");
|
||||
if (!avr)
|
||||
return -EINVAL;
|
||||
|
||||
avr_clock = *(u32*)get_property(avr, "clock-frequency", &len);
|
||||
phys_addr = ((u32*)get_property(avr, "reg", &len))[0];
|
||||
|
||||
if (!avr_clock || !phys_addr)
|
||||
return -EINVAL;
|
||||
|
||||
avr_addr = ioremap(phys_addr, 32);
|
||||
if (!avr_addr)
|
||||
return -EFAULT;
|
||||
|
||||
ls_uart_init();
|
||||
|
||||
INIT_WORK(&wd_work, wd_stop, NULL);
|
||||
schedule_work(&wd_work);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
late_initcall(ls_uarts_init);
|
||||
Loading…
Reference in a new issue