mirror of https://gitee.com/openkylin/linux.git
powerpc/47x: Add support for the new IBM currituck platform
Based on original work by David 'Shaggy' Kleikamp. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
This commit is contained in:
Tony Breeds
Josh Boyer
parent
df777bd39a
commit
228d550533
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@ -45,6 +45,7 @@ $(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
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$(obj)/cuboot-acadia.o: BOOTCFLAGS += -mcpu=405
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$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
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$(obj)/treeboot-iss4xx.o: BOOTCFLAGS += -mcpu=405
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$(obj)/treeboot-currituck.o: BOOTCFLAGS += -mcpu=405
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$(obj)/virtex405-head.o: BOOTAFLAGS += -mcpu=405
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@ -79,7 +80,8 @@ src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c
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cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \
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virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c \
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cuboot-acadia.c cuboot-amigaone.c cuboot-kilauea.c \
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gamecube-head.S gamecube.c wii-head.S wii.c treeboot-iss4xx.c
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gamecube-head.S gamecube.c wii-head.S wii.c treeboot-iss4xx.c \
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treeboot-currituck.c
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src-boot := $(src-wlib) $(src-plat) empty.c
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src-boot := $(addprefix $(obj)/, $(src-boot))
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@ -212,6 +214,7 @@ image-$(CONFIG_WARP) += cuImage.warp
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image-$(CONFIG_YOSEMITE) += cuImage.yosemite
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image-$(CONFIG_ISS4xx) += treeImage.iss4xx \
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treeImage.iss4xx-mpic
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image-$(CONFIG_CURRITUCK) += treeImage.currituck
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# Board ports in arch/powerpc/platform/8xx/Kconfig
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image-$(CONFIG_MPC86XADS) += cuImage.mpc866ads
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@ -0,0 +1,237 @@
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/*
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* Device Tree Source for IBM Embedded PPC 476 Platform
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*
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* Copyright © 2011 Tony Breeds IBM Corporation
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without
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* any warranty of any kind, whether express or implied.
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*/
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/dts-v1/;
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/memreserve/ 0x01f00000 0x00100000; // spin table
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/ {
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#address-cells = <2>;
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#size-cells = <2>;
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model = "ibm,currituck";
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compatible = "ibm,currituck";
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dcr-parent = <&{/cpus/cpu@0}>;
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aliases {
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serial0 = &UART0;
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};
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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cpu@0 {
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device_type = "cpu";
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model = "PowerPC,476";
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reg = <0>;
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clock-frequency = <1600000000>; // 1.6 GHz
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timebase-frequency = <100000000>; // 100Mhz
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i-cache-line-size = <32>;
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d-cache-line-size = <32>;
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i-cache-size = <32768>;
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d-cache-size = <32768>;
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dcr-controller;
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dcr-access-method = "native";
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status = "ok";
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};
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cpu@1 {
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device_type = "cpu";
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model = "PowerPC,476";
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reg = <1>;
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clock-frequency = <1600000000>; // 1.6 GHz
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timebase-frequency = <100000000>; // 100Mhz
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i-cache-line-size = <32>;
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d-cache-line-size = <32>;
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i-cache-size = <32768>;
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d-cache-size = <32768>;
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dcr-controller;
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dcr-access-method = "native";
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status = "disabled";
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enable-method = "spin-table";
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cpu-release-addr = <0x0 0x01f00000>;
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};
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};
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memory {
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device_type = "memory";
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reg = <0x0 0x0 0x0 0x0>; // filled in by zImage
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};
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MPIC: interrupt-controller {
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compatible = "chrp,open-pic";
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interrupt-controller;
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dcr-reg = <0xffc00000 0x00040000>;
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#address-cells = <0>;
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#size-cells = <0>;
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#interrupt-cells = <2>;
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};
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plb {
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compatible = "ibm,plb6";
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#address-cells = <2>;
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#size-cells = <2>;
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ranges;
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clock-frequency = <200000000>; // 200Mhz
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POB0: opb {
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compatible = "ibm,opb-4xx", "ibm,opb";
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#address-cells = <1>;
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#size-cells = <1>;
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/* Wish there was a nicer way of specifying a full
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* 32-bit range
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*/
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ranges = <0x00000000 0x00000200 0x00000000 0x80000000
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0x80000000 0x00000200 0x80000000 0x80000000>;
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clock-frequency = <100000000>;
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UART0: serial@10000000 {
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device_type = "serial";
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compatible = "ns16750", "ns16550";
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reg = <0x10000000 0x00000008>;
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virtual-reg = <0xe1000000>;
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clock-frequency = <1851851>; // PCIe refclk/MCGC0_CTL[UART]
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current-speed = <115200>;
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interrupt-parent = <&MPIC>;
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interrupts = <34 2>;
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};
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IIC0: i2c@00000000 {
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compatible = "ibm,iic-currituck", "ibm,iic";
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reg = <0x0 0x00000014>;
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interrupt-parent = <&MPIC>;
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interrupts = <79 2>;
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#address-cells = <1>;
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#size-cells = <0>;
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rtc@68 {
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compatible = "stm,m41t80", "m41st85";
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reg = <0x68>;
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};
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};
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};
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PCIE0: pciex@10100000000 { // 4xGBIF1
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device_type = "pci";
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#interrupt-cells = <1>;
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#size-cells = <2>;
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#address-cells = <3>;
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compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
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primary;
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port = <0x0>; /* port number */
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reg = <0x00000101 0x00000000 0x0 0x10000000 /* Config space access */
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0x00000100 0x00000000 0x0 0x00001000>; /* UTL Registers space access */
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dcr-reg = <0x80 0x20>;
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// pci_space < pci_addr > < cpu_addr > < size >
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ranges = <0x02000000 0x00000000 0x80000000 0x00000110 0x80000000 0x0 0x80000000
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0x01000000 0x0 0x0 0x00000140 0x0 0x0 0x00010000>;
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/* Inbound starting at 0 to memsize filled in by zImage */
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dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;
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/* This drives busses 0 to 0xf */
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bus-range = <0x0 0xf>;
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/* Legacy interrupts (note the weird polarity, the bridge seems
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* to invert PCIe legacy interrupts).
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* We are de-swizzling here because the numbers are actually for
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* port of the root complex virtual P2P bridge. But I want
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* to avoid putting a node for it in the tree, so the numbers
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* below are basically de-swizzled numbers.
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* The real slot is on idsel 0, so the swizzling is 1:1
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*/
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interrupt-map-mask = <0x0 0x0 0x0 0x7>;
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interrupt-map = <
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0x0 0x0 0x0 0x1 &MPIC 46 0x2 /* int A */
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0x0 0x0 0x0 0x2 &MPIC 47 0x2 /* int B */
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0x0 0x0 0x0 0x3 &MPIC 48 0x2 /* int C */
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0x0 0x0 0x0 0x4 &MPIC 49 0x2 /* int D */>;
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};
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PCIE1: pciex@30100000000 { // 4xGBIF0
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device_type = "pci";
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#interrupt-cells = <1>;
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#size-cells = <2>;
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#address-cells = <3>;
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compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
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primary;
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port = <0x1>; /* port number */
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reg = <0x00000301 0x00000000 0x0 0x10000000 /* Config space access */
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0x00000300 0x00000000 0x0 0x00001000>; /* UTL Registers space access */
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dcr-reg = <0x60 0x20>;
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ranges = <0x02000000 0x00000000 0x80000000 0x00000310 0x80000000 0x0 0x80000000
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0x01000000 0x0 0x0 0x00000340 0x0 0x0 0x00010000>;
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/* Inbound starting at 0 to memsize filled in by zImage */
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dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;
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/* This drives busses 0 to 0xf */
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bus-range = <0x0 0xf>;
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/* Legacy interrupts (note the weird polarity, the bridge seems
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* to invert PCIe legacy interrupts).
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* We are de-swizzling here because the numbers are actually for
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* port of the root complex virtual P2P bridge. But I want
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* to avoid putting a node for it in the tree, so the numbers
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* below are basically de-swizzled numbers.
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* The real slot is on idsel 0, so the swizzling is 1:1
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*/
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interrupt-map-mask = <0x0 0x0 0x0 0x7>;
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interrupt-map = <
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0x0 0x0 0x0 0x1 &MPIC 38 0x2 /* int A */
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0x0 0x0 0x0 0x2 &MPIC 39 0x2 /* int B */
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0x0 0x0 0x0 0x3 &MPIC 40 0x2 /* int C */
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0x0 0x0 0x0 0x4 &MPIC 41 0x2 /* int D */>;
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};
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PCIE2: pciex@38100000000 { // 2xGBIF0
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device_type = "pci";
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#interrupt-cells = <1>;
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#size-cells = <2>;
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#address-cells = <3>;
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compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
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primary;
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port = <0x2>; /* port number */
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reg = <0x00000381 0x00000000 0x0 0x10000000 /* Config space access */
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0x00000380 0x00000000 0x0 0x00001000>; /* UTL Registers space access */
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dcr-reg = <0xA0 0x20>;
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ranges = <0x02000000 0x00000000 0x80000000 0x00000390 0x80000000 0x0 0x80000000
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0x01000000 0x0 0x0 0x000003C0 0x0 0x0 0x00010000>;
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/* Inbound starting at 0 to memsize filled in by zImage */
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dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;
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/* This drives busses 0 to 0xf */
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bus-range = <0x0 0xf>;
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/* Legacy interrupts (note the weird polarity, the bridge seems
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* to invert PCIe legacy interrupts).
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* We are de-swizzling here because the numbers are actually for
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* port of the root complex virtual P2P bridge. But I want
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* to avoid putting a node for it in the tree, so the numbers
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* below are basically de-swizzled numbers.
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* The real slot is on idsel 0, so the swizzling is 1:1
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*/
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interrupt-map-mask = <0x0 0x0 0x0 0x7>;
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interrupt-map = <
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0x0 0x0 0x0 0x1 &MPIC 54 0x2 /* int A */
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0x0 0x0 0x0 0x2 &MPIC 55 0x2 /* int B */
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0x0 0x0 0x0 0x3 &MPIC 56 0x2 /* int C */
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0x0 0x0 0x0 0x4 &MPIC 57 0x2 /* int D */>;
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};
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};
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chosen {
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linux,stdout-path = &UART0;
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};
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};
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@ -0,0 +1,119 @@
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/*
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* Copyright © 2011 Tony Breeds IBM Corporation
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*
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* Based on earlier code:
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* Copyright (C) Paul Mackerras 1997.
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*
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* Matt Porter <mporter@kernel.crashing.org>
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* Copyright 2002-2005 MontaVista Software Inc.
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*
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* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
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* Copyright (c) 2003, 2004 Zultys Technologies
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*
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* Copyright 2007 David Gibson, IBM Corporation.
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* Copyright 2010 Ben. Herrenschmidt, IBM Corporation.
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* Copyright © 2011 David Kleikamp IBM Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <stdarg.h>
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#include <stddef.h>
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#include "types.h"
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#include "elf.h"
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#include "string.h"
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#include "stdio.h"
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#include "page.h"
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#include "ops.h"
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#include "reg.h"
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#include "io.h"
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#include "dcr.h"
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#include "4xx.h"
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#include "44x.h"
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#include "libfdt.h"
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BSS_STACK(4096);
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#define MAX_RANKS 0x4
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#define DDR3_MR0CF 0x80010011U
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static unsigned long long ibm_currituck_memsize;
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static unsigned long long ibm_currituck_detect_memsize(void)
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{
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u32 reg;
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unsigned i;
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unsigned long long memsize = 0;
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for(i = 0; i < MAX_RANKS; i++){
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reg = mfdcrx(DDR3_MR0CF + i);
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if (!(reg & 1))
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continue;
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reg &= 0x0000f000;
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reg >>= 12;
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memsize += (0x800000ULL << reg);
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}
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return memsize;
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}
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static void ibm_currituck_fixups(void)
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{
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void *devp = finddevice("/");
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u32 dma_ranges[7];
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dt_fixup_memory(0x0ULL, ibm_currituck_memsize);
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while ((devp = find_node_by_devtype(devp, "pci"))) {
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if (getprop(devp, "dma-ranges", dma_ranges, sizeof(dma_ranges)) < 0) {
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printf("%s: Failed to get dma-ranges\r\n", __func__);
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continue;
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}
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dma_ranges[5] = ibm_currituck_memsize >> 32;
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dma_ranges[6] = ibm_currituck_memsize & 0xffffffffUL;
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setprop(devp, "dma-ranges", dma_ranges, sizeof(dma_ranges));
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}
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}
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#define SPRN_PIR 0x11E /* Processor Indentification Register */
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void platform_init(void)
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{
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unsigned long end_of_ram, avail_ram;
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u32 pir_reg;
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int node, size;
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const u32 *timebase;
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ibm_currituck_memsize = ibm_currituck_detect_memsize();
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if (ibm_currituck_memsize >> 32)
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end_of_ram = ~0UL;
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else
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end_of_ram = ibm_currituck_memsize;
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avail_ram = end_of_ram - (unsigned long)_end;
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simple_alloc_init(_end, avail_ram, 128, 64);
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platform_ops.fixups = ibm_currituck_fixups;
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platform_ops.exit = ibm44x_dbcr_reset;
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pir_reg = mfspr(SPRN_PIR);
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/* Make sure FDT blob is sane */
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if (fdt_check_header(_dtb_start) != 0)
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fatal("Invalid device tree blob\n");
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node = fdt_node_offset_by_prop_value(_dtb_start, -1, "device_type",
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"cpu", sizeof("cpu"));
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if (!node)
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fatal("Cannot find cpu node\n");
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timebase = fdt_getprop(_dtb_start, node, "timebase-frequency", &size);
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if (timebase && (size == 4))
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timebase_period_ns = 1000000000 / *timebase;
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fdt_set_boot_cpuid_phys(_dtb_start, pir_reg);
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fdt_init(_dtb_start);
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serial_console_init();
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}
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@ -244,6 +244,9 @@ gamecube|wii)
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link_address='0x600000'
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platformo="$object/$platform-head.o $object/$platform.o"
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;;
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treeboot-currituck)
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link_address='0x1000000'
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;;
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treeboot-iss4xx-mpic)
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platformo="$object/treeboot-iss4xx.o"
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;;
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@ -0,0 +1,110 @@
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CONFIG_44x=y
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CONFIG_SMP=y
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CONFIG_EXPERIMENTAL=y
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CONFIG_SYSVIPC=y
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CONFIG_POSIX_MQUEUE=y
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CONFIG_SPARSE_IRQ=y
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CONFIG_LOG_BUF_SHIFT=14
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CONFIG_EXPERT=y
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CONFIG_KALLSYMS_ALL=y
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CONFIG_PROFILING=y
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CONFIG_OPROFILE=y
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CONFIG_MODULES=y
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CONFIG_MODULE_UNLOAD=y
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# CONFIG_BLK_DEV_BSG is not set
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CONFIG_PPC_47x=y
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# CONFIG_EBONY is not set
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CONFIG_CURRITUCK=y
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CONFIG_HIGHMEM=y
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CONFIG_HZ_100=y
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CONFIG_MATH_EMULATION=y
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CONFIG_IRQ_ALL_CPUS=y
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CONFIG_CMDLINE_BOOL=y
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CONFIG_CMDLINE=""
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# CONFIG_SUSPEND is not set
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CONFIG_NET=y
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CONFIG_PACKET=y
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CONFIG_UNIX=y
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CONFIG_INET=y
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CONFIG_IP_PNP=y
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CONFIG_IP_PNP_DHCP=y
|
||||
CONFIG_IP_PNP_BOOTP=y
|
||||
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
|
||||
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
|
||||
# CONFIG_INET_XFRM_MODE_BEET is not set
|
||||
# CONFIG_INET_LRO is not set
|
||||
# CONFIG_IPV6 is not set
|
||||
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
|
||||
CONFIG_DEVTMPFS=y
|
||||
CONFIG_DEVTMPFS_MOUNT=y
|
||||
CONFIG_CONNECTOR=y
|
||||
CONFIG_MTD=y
|
||||
CONFIG_MTD_CHAR=y
|
||||
CONFIG_MTD_BLOCK=y
|
||||
CONFIG_MTD_JEDECPROBE=y
|
||||
CONFIG_MTD_CFI_AMDSTD=y
|
||||
CONFIG_MTD_PHYSMAP_OF=y
|
||||
CONFIG_PROC_DEVICETREE=y
|
||||
CONFIG_BLK_DEV_RAM=y
|
||||
CONFIG_BLK_DEV_RAM_SIZE=35000
|
||||
# CONFIG_SCSI_PROC_FS is not set
|
||||
CONFIG_BLK_DEV_SD=y
|
||||
# CONFIG_SCSI_LOWLEVEL is not set
|
||||
CONFIG_ATA=y
|
||||
# CONFIG_SATA_PMP is not set
|
||||
CONFIG_SATA_SIL24=y
|
||||
# CONFIG_ATA_SFF is not set
|
||||
CONFIG_NETDEVICES=y
|
||||
CONFIG_E1000E=y
|
||||
# CONFIG_NETDEV_10000 is not set
|
||||
# CONFIG_INPUT is not set
|
||||
# CONFIG_SERIO is not set
|
||||
# CONFIG_VT is not set
|
||||
CONFIG_SERIAL_8250=y
|
||||
CONFIG_SERIAL_8250_CONSOLE=y
|
||||
CONFIG_SERIAL_8250_EXTENDED=y
|
||||
CONFIG_SERIAL_8250_SHARE_IRQ=y
|
||||
CONFIG_SERIAL_OF_PLATFORM=y
|
||||
# CONFIG_HW_RANDOM is not set
|
||||
CONFIG_I2C=y
|
||||
CONFIG_I2C_IBM_IIC=y
|
||||
# CONFIG_HWMON is not set
|
||||
CONFIG_THERMAL=y
|
||||
CONFIG_USB=y
|
||||
CONFIG_USB_DEBUG=y
|
||||
CONFIG_USB_EHCI_HCD=y
|
||||
CONFIG_USB_OHCI_HCD=y
|
||||
CONFIG_RTC_CLASS=y
|
||||
CONFIG_RTC_DRV_M41T80=y
|
||||
CONFIG_EXT2_FS=y
|
||||
CONFIG_EXT3_FS=y
|
||||
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
|
||||
CONFIG_EXT3_FS_POSIX_ACL=y
|
||||
CONFIG_EXT3_FS_SECURITY=y
|
||||
CONFIG_PROC_KCORE=y
|
||||
CONFIG_TMPFS=y
|
||||
CONFIG_CRAMFS=y
|
||||
CONFIG_NFS_FS=y
|
||||
CONFIG_NFS_V3=y
|
||||
CONFIG_NFS_V3_ACL=y
|
||||
CONFIG_NFS_V4=y
|
||||
CONFIG_NLS_DEFAULT="n"
|
||||
CONFIG_MAGIC_SYSRQ=y
|
||||
CONFIG_DEBUG_FS=y
|
||||
CONFIG_DEBUG_KERNEL=y
|
||||
CONFIG_DETECT_HUNG_TASK=y
|
||||
CONFIG_DEBUG_INFO=y
|
||||
CONFIG_SYSCTL_SYSCALL_CHECK=y
|
||||
CONFIG_XMON=y
|
||||
CONFIG_XMON_DEFAULT=y
|
||||
CONFIG_PPC_EARLY_DEBUG=y
|
||||
CONFIG_PPC_EARLY_DEBUG_44x_PHYSLOW=0x10000000
|
||||
CONFIG_PPC_EARLY_DEBUG_44x_PHYSHIGH=0x200
|
||||
CONFIG_CRYPTO=y
|
||||
CONFIG_CRYPTO_CBC=y
|
||||
CONFIG_CRYPTO_ECB=y
|
||||
CONFIG_CRYPTO_PCBC=y
|
||||
CONFIG_CRYPTO_MD5=y
|
||||
CONFIG_CRYPTO_DES=y
|
||||
# CONFIG_CRYPTO_ANSI_CPRNG is not set
|
||||
# CONFIG_CRYPTO_HW is not set
|
||||
|
|
@ -186,6 +186,16 @@ config ISS4xx
|
|||
help
|
||||
This option enables support for the IBM ISS simulation environment
|
||||
|
||||
config CURRITUCK
|
||||
bool "IBM Currituck (476fpe) Support"
|
||||
depends on PPC_47x
|
||||
default n
|
||||
select SWIOTLB
|
||||
select 476FPE
|
||||
select PPC4xx_PCI_EXPRESS
|
||||
help
|
||||
This option enables support for the IBM Currituck (476fpe) evaluation board
|
||||
|
||||
config ICON
|
||||
bool "Icon"
|
||||
depends on 44x
|
||||
|
|
|
|||
|
|
@ -10,3 +10,4 @@ obj-$(CONFIG_XILINX_VIRTEX_5_FXT) += virtex.o
|
|||
obj-$(CONFIG_XILINX_ML510) += virtex_ml510.o
|
||||
obj-$(CONFIG_ISS4xx) += iss4xx.o
|
||||
obj-$(CONFIG_CANYONLANDS)+= canyonlands.o
|
||||
obj-$(CONFIG_CURRITUCK) += currituck.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,204 @@
|
|||
/*
|
||||
* Currituck board specific routines
|
||||
*
|
||||
* Copyright © 2011 Tony Breeds IBM Corporation
|
||||
*
|
||||
* Based on earlier code:
|
||||
* Matt Porter <mporter@kernel.crashing.org>
|
||||
* Copyright 2002-2005 MontaVista Software Inc.
|
||||
*
|
||||
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
|
||||
* Copyright (c) 2003-2005 Zultys Technologies
|
||||
*
|
||||
* Rewritten and ported to the merged powerpc tree:
|
||||
* Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
|
||||
* Copyright © 2011 David Kliekamp IBM Corporation
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version.
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/memblock.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_platform.h>
|
||||
#include <linux/rtc.h>
|
||||
|
||||
#include <asm/machdep.h>
|
||||
#include <asm/prom.h>
|
||||
#include <asm/udbg.h>
|
||||
#include <asm/time.h>
|
||||
#include <asm/uic.h>
|
||||
#include <asm/ppc4xx.h>
|
||||
#include <asm/mpic.h>
|
||||
#include <asm/mmu.h>
|
||||
|
||||
#include <linux/pci.h>
|
||||
|
||||
static __initdata struct of_device_id ppc47x_of_bus[] = {
|
||||
{ .compatible = "ibm,plb4", },
|
||||
{ .compatible = "ibm,plb6", },
|
||||
{ .compatible = "ibm,opb", },
|
||||
{ .compatible = "ibm,ebc", },
|
||||
{},
|
||||
};
|
||||
|
||||
/* The EEPROM is missing and the default values are bogus. This forces USB in
|
||||
* to EHCI mode */
|
||||
static void __devinit quirk_ppc_currituck_usb_fixup(struct pci_dev *dev)
|
||||
{
|
||||
if (of_machine_is_compatible("ibm,currituck")) {
|
||||
pci_write_config_dword(dev, 0xe0, 0x0114231f);
|
||||
pci_write_config_dword(dev, 0xe4, 0x00006c40);
|
||||
}
|
||||
}
|
||||
DECLARE_PCI_FIXUP_HEADER(0x1033, 0x0035, quirk_ppc_currituck_usb_fixup);
|
||||
|
||||
static int __init ppc47x_device_probe(void)
|
||||
{
|
||||
of_platform_bus_probe(NULL, ppc47x_of_bus, NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
machine_device_initcall(ppc47x, ppc47x_device_probe);
|
||||
|
||||
/* We can have either UICs or MPICs */
|
||||
static void __init ppc47x_init_irq(void)
|
||||
{
|
||||
struct device_node *np;
|
||||
|
||||
/* Find top level interrupt controller */
|
||||
for_each_node_with_property(np, "interrupt-controller") {
|
||||
if (of_get_property(np, "interrupts", NULL) == NULL)
|
||||
break;
|
||||
}
|
||||
if (np == NULL)
|
||||
panic("Can't find top level interrupt controller");
|
||||
|
||||
/* Check type and do appropriate initialization */
|
||||
if (of_device_is_compatible(np, "chrp,open-pic")) {
|
||||
/* The MPIC driver will get everything it needs from the
|
||||
* device-tree, just pass 0 to all arguments
|
||||
*/
|
||||
struct mpic *mpic =
|
||||
mpic_alloc(np, 0, MPIC_PRIMARY, 0, 0, " MPIC ");
|
||||
BUG_ON(mpic == NULL);
|
||||
mpic_init(mpic);
|
||||
ppc_md.get_irq = mpic_get_irq;
|
||||
} else
|
||||
panic("Unrecognized top level interrupt controller");
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
static void __cpuinit smp_ppc47x_setup_cpu(int cpu)
|
||||
{
|
||||
mpic_setup_this_cpu();
|
||||
}
|
||||
|
||||
static int __cpuinit smp_ppc47x_kick_cpu(int cpu)
|
||||
{
|
||||
struct device_node *cpunode = of_get_cpu_node(cpu, NULL);
|
||||
const u64 *spin_table_addr_prop;
|
||||
u32 *spin_table;
|
||||
extern void start_secondary_47x(void);
|
||||
|
||||
BUG_ON(cpunode == NULL);
|
||||
|
||||
/* Assume spin table. We could test for the enable-method in
|
||||
* the device-tree but currently there's little point as it's
|
||||
* our only supported method
|
||||
*/
|
||||
spin_table_addr_prop =
|
||||
of_get_property(cpunode, "cpu-release-addr", NULL);
|
||||
|
||||
if (spin_table_addr_prop == NULL) {
|
||||
pr_err("CPU%d: Can't start, missing cpu-release-addr !\n",
|
||||
cpu);
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Assume it's mapped as part of the linear mapping. This is a bit
|
||||
* fishy but will work fine for now
|
||||
*
|
||||
* XXX: Is there any reason to assume differently?
|
||||
*/
|
||||
spin_table = (u32 *)__va(*spin_table_addr_prop);
|
||||
pr_debug("CPU%d: Spin table mapped at %p\n", cpu, spin_table);
|
||||
|
||||
spin_table[3] = cpu;
|
||||
smp_wmb();
|
||||
spin_table[1] = __pa(start_secondary_47x);
|
||||
mb();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct smp_ops_t ppc47x_smp_ops = {
|
||||
.probe = smp_mpic_probe,
|
||||
.message_pass = smp_mpic_message_pass,
|
||||
.setup_cpu = smp_ppc47x_setup_cpu,
|
||||
.kick_cpu = smp_ppc47x_kick_cpu,
|
||||
.give_timebase = smp_generic_give_timebase,
|
||||
.take_timebase = smp_generic_take_timebase,
|
||||
};
|
||||
|
||||
static void __init ppc47x_smp_init(void)
|
||||
{
|
||||
if (mmu_has_feature(MMU_FTR_TYPE_47x))
|
||||
smp_ops = &ppc47x_smp_ops;
|
||||
}
|
||||
|
||||
#else /* CONFIG_SMP */
|
||||
static void __init ppc47x_smp_init(void) { }
|
||||
#endif /* CONFIG_SMP */
|
||||
|
||||
static void __init ppc47x_setup_arch(void)
|
||||
{
|
||||
|
||||
/* No need to check the DMA config as we /know/ our windows are all of
|
||||
* RAM. Lets hope that doesn't change */
|
||||
#ifdef CONFIG_SWIOTLB
|
||||
if (memblock_end_of_DRAM() > 0xffffffff) {
|
||||
ppc_swiotlb_enable = 1;
|
||||
set_pci_dma_ops(&swiotlb_dma_ops);
|
||||
ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
|
||||
}
|
||||
#endif
|
||||
ppc47x_smp_init();
|
||||
}
|
||||
|
||||
/*
|
||||
* Called very early, MMU is off, device-tree isn't unflattened
|
||||
*/
|
||||
static int __init ppc47x_probe(void)
|
||||
{
|
||||
unsigned long root = of_get_flat_dt_root();
|
||||
|
||||
if (!of_flat_dt_is_compatible(root, "ibm,currituck"))
|
||||
return 0;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Use USB controller should have been hardware swizzled but it wasn't :( */
|
||||
static void ppc47x_pci_irq_fixup(struct pci_dev *dev)
|
||||
{
|
||||
if (dev->vendor == 0x1033 && (dev->device == 0x0035 ||
|
||||
dev->device == 0x00e0)) {
|
||||
dev->irq = irq_create_mapping(NULL, 47);
|
||||
pr_info("%s: Mapping irq 47 %d\n", __func__, dev->irq);
|
||||
}
|
||||
}
|
||||
|
||||
define_machine(ppc47x) {
|
||||
.name = "PowerPC 47x",
|
||||
.probe = ppc47x_probe,
|
||||
.progress = udbg_progress,
|
||||
.init_IRQ = ppc47x_init_irq,
|
||||
.setup_arch = ppc47x_setup_arch,
|
||||
.pci_irq_fixup = ppc47x_pci_irq_fixup,
|
||||
.restart = ppc4xx_reset_system,
|
||||
.calibrate_decr = generic_calibrate_decr,
|
||||
};
|
||||
Loading…
Reference in New Issue