diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 13:26:53 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 13:26:53 -0800 |
commit | a73611b6aafa3b902524dad2d68e378c4ec9f4db (patch) | |
tree | 5dc4877055a2297d9f7f5db4cf6a5a7aad392dd0 | |
parent | 5fa3577b1a1202972e6e419040438c29f39f59cc (diff) | |
parent | ae4cec4736969ec2196a6bbce4ab263ff7cb7eef (diff) |
Merge branch 'next' of git://git.secretlab.ca/git/linux-2.6
* 'next' of git://git.secretlab.ca/git/linux-2.6: (23 commits)
powerpc: fix up for mmu_mapin_ram api change
powerpc: wii: allow ioremap within the memory hole
powerpc: allow ioremap within reserved memory regions
wii: use both mem1 and mem2 as ram
wii: bootwrapper: add fixup to calc useable mem2
powerpc: gamecube/wii: early debugging using usbgecko
powerpc: reserve fixmap entries for early debug
powerpc: wii: default config
powerpc: wii: platform support
powerpc: wii: hollywood interrupt controller support
powerpc: broadway processor support
powerpc: wii: bootwrapper bits
powerpc: wii: device tree
powerpc: gamecube: default config
powerpc: gamecube: platform support
powerpc: gamecube/wii: flipper interrupt controller support
powerpc: gamecube/wii: udbg support for usbgecko
powerpc: gamecube/wii: do not include PCI support
powerpc: gamecube/wii: declare as non-coherent platforms
powerpc: gamecube/wii: introduce GAMECUBE_COMMON
...
Fix up conflicts in arch/powerpc/mm/fsl_booke_mmu.c.
Hopefully even close to correctly.
41 files changed, 5161 insertions, 22 deletions
diff --git a/Documentation/powerpc/dts-bindings/nintendo/gamecube.txt b/Documentation/powerpc/dts-bindings/nintendo/gamecube.txt new file mode 100644 index 00000000000..b558585b1aa --- /dev/null +++ b/Documentation/powerpc/dts-bindings/nintendo/gamecube.txt @@ -0,0 +1,109 @@ + +Nintendo GameCube device tree +============================= + +1) The "flipper" node + + This node represents the multi-function "Flipper" chip, which packages + many of the devices found in the Nintendo GameCube. + + Required properties: + + - compatible : Should be "nintendo,flipper" + +1.a) The Video Interface (VI) node + + Represents the interface between the graphics processor and a external + video encoder. + + Required properties: + + - compatible : should be "nintendo,flipper-vi" + - reg : should contain the VI registers location and length + - interrupts : should contain the VI interrupt + +1.b) The Processor Interface (PI) node + + Represents the data and control interface between the main processor + and graphics and audio processor. + + Required properties: + + - compatible : should be "nintendo,flipper-pi" + - reg : should contain the PI registers location and length + +1.b.i) The "Flipper" interrupt controller node + + Represents the interrupt controller within the "Flipper" chip. + The node for the "Flipper" interrupt controller must be placed under + the PI node. + + Required properties: + + - compatible : should be "nintendo,flipper-pic" + +1.c) The Digital Signal Procesor (DSP) node + + Represents the digital signal processor interface, designed to offload + audio related tasks. + + Required properties: + + - compatible : should be "nintendo,flipper-dsp" + - reg : should contain the DSP registers location and length + - interrupts : should contain the DSP interrupt + +1.c.i) The Auxiliary RAM (ARAM) node + + Represents the non cpu-addressable ram designed mainly to store audio + related information. + The ARAM node must be placed under the DSP node. + + Required properties: + + - compatible : should be "nintendo,flipper-aram" + - reg : should contain the ARAM start (zero-based) and length + +1.d) The Disk Interface (DI) node + + Represents the interface used to communicate with mass storage devices. + + Required properties: + + - compatible : should be "nintendo,flipper-di" + - reg : should contain the DI registers location and length + - interrupts : should contain the DI interrupt + +1.e) The Audio Interface (AI) node + + Represents the interface to the external 16-bit stereo digital-to-analog + converter. + + Required properties: + + - compatible : should be "nintendo,flipper-ai" + - reg : should contain the AI registers location and length + - interrupts : should contain the AI interrupt + +1.f) The Serial Interface (SI) node + + Represents the interface to the four single bit serial interfaces. + The SI is a proprietary serial interface used normally to control gamepads. + It's NOT a RS232-type interface. + + Required properties: + + - compatible : should be "nintendo,flipper-si" + - reg : should contain the SI registers location and length + - interrupts : should contain the SI interrupt + +1.g) The External Interface (EXI) node + + Represents the multi-channel SPI-like interface. + + Required properties: + + - compatible : should be "nintendo,flipper-exi" + - reg : should contain the EXI registers location and length + - interrupts : should contain the EXI interrupt + diff --git a/Documentation/powerpc/dts-bindings/nintendo/wii.txt b/Documentation/powerpc/dts-bindings/nintendo/wii.txt new file mode 100644 index 00000000000..a7e155a023b --- /dev/null +++ b/Documentation/powerpc/dts-bindings/nintendo/wii.txt @@ -0,0 +1,184 @@ + +Nintendo Wii device tree +======================== + +0) The root node + + This node represents the Nintendo Wii video game console. + + Required properties: + + - model : Should be "nintendo,wii" + - compatible : Should be "nintendo,wii" + +1) The "hollywood" node + + This node represents the multi-function "Hollywood" chip, which packages + many of the devices found in the Nintendo Wii. + + Required properties: + + - compatible : Should be "nintendo,hollywood" + +1.a) The Video Interface (VI) node + + Represents the interface between the graphics processor and a external + video encoder. + + Required properties: + + - compatible : should be "nintendo,hollywood-vi","nintendo,flipper-vi" + - reg : should contain the VI registers location and length + - interrupts : should contain the VI interrupt + +1.b) The Processor Interface (PI) node + + Represents the data and control interface between the main processor + and graphics and audio processor. + + Required properties: + + - compatible : should be "nintendo,hollywood-pi","nintendo,flipper-pi" + - reg : should contain the PI registers location and length + +1.b.i) The "Flipper" interrupt controller node + + Represents the "Flipper" interrupt controller within the "Hollywood" chip. + The node for the "Flipper" interrupt controller must be placed under + the PI node. + + Required properties: + + - #interrupt-cells : <1> + - compatible : should be "nintendo,flipper-pic" + - interrupt-controller + +1.c) The Digital Signal Procesor (DSP) node + + Represents the digital signal processor interface, designed to offload + audio related tasks. + + Required properties: + + - compatible : should be "nintendo,hollywood-dsp","nintendo,flipper-dsp" + - reg : should contain the DSP registers location and length + - interrupts : should contain the DSP interrupt + +1.d) The Serial Interface (SI) node + + Represents the interface to the four single bit serial interfaces. + The SI is a proprietary serial interface used normally to control gamepads. + It's NOT a RS232-type interface. + + Required properties: + + - compatible : should be "nintendo,hollywood-si","nintendo,flipper-si" + - reg : should contain the SI registers location and length + - interrupts : should contain the SI interrupt + +1.e) The Audio Interface (AI) node + + Represents the interface to the external 16-bit stereo digital-to-analog + converter. + + Required properties: + + - compatible : should be "nintendo,hollywood-ai","nintendo,flipper-ai" + - reg : should contain the AI registers location and length + - interrupts : should contain the AI interrupt + +1.f) The External Interface (EXI) node + + Represents the multi-channel SPI-like interface. + + Required properties: + + - compatible : should be "nintendo,hollywood-exi","nintendo,flipper-exi" + - reg : should contain the EXI registers location and length + - interrupts : should contain the EXI interrupt + +1.g) The Open Host Controller Interface (OHCI) nodes + + Represent the USB 1.x Open Host Controller Interfaces. + + Required properties: + + - compatible : should be "nintendo,hollywood-usb-ohci","usb-ohci" + - reg : should contain the OHCI registers location and length + - interrupts : should contain the OHCI interrupt + +1.h) The Enhanced Host Controller Interface (EHCI) node + + Represents the USB 2.0 Enhanced Host Controller Interface. + + Required properties: + + - compatible : should be "nintendo,hollywood-usb-ehci","usb-ehci" + - reg : should contain the EHCI registers location and length + - interrupts : should contain the EHCI interrupt + +1.i) The Secure Digital Host Controller Interface (SDHCI) nodes + + Represent the Secure Digital Host Controller Interfaces. + + Required properties: + + - compatible : should be "nintendo,hollywood-sdhci","sdhci" + - reg : should contain the SDHCI registers location and length + - interrupts : should contain the SDHCI interrupt + +1.j) The Inter-Processsor Communication (IPC) node + + Represent the Inter-Processor Communication interface. This interface + enables communications between the Broadway and the Starlet processors. + + - compatible : should be "nintendo,hollywood-ipc" + - reg : should contain the IPC registers location and length + - interrupts : should contain the IPC interrupt + +1.k) The "Hollywood" interrupt controller node + + Represents the "Hollywood" interrupt controller within the + "Hollywood" chip. + + Required properties: + + - #interrupt-cells : <1> + - compatible : should be "nintendo,hollywood-pic" + - reg : should contain the controller registers location and length + - interrupt-controller + - interrupts : should contain the cascade interrupt of the "flipper" pic + - interrupt-parent: should contain the phandle of the "flipper" pic + +1.l) The General Purpose I/O (GPIO) controller node + + Represents the dual access 32 GPIO controller interface. + + Required properties: + + - #gpio-cells : <2> + - compatible : should be "nintendo,hollywood-gpio" + - reg : should contain the IPC registers location and length + - gpio-controller + +1.m) The control node + + Represents the control interface used to setup several miscellaneous + settings of the "Hollywood" chip like boot memory mappings, resets, + disk interface mode, etc. + + Required properties: + + - compatible : should be "nintendo,hollywood-control" + - reg : should contain the control registers location and length + +1.n) The Disk Interface (DI) node + + Represents the interface used to communicate with mass storage devices. + + Required properties: + + - compatible : should be "nintendo,hollywood-di" + - reg : should contain the DI registers location and length + - interrupts : should contain the DI interrupt + diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 0df57466e78..ba3948c7007 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -704,7 +704,7 @@ config PPC_PCI_CHOICE config PCI bool "PCI support" if PPC_PCI_CHOICE default y if !40x && !CPM2 && !8xx && !PPC_83xx \ - && !PPC_85xx && !PPC_86xx + && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON default PCI_PERMEDIA if !4xx && !CPM2 && !8xx default PCI_QSPAN if !4xx && !CPM2 && 8xx select ARCH_SUPPORTS_MSI diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index bf3382f1904..5cdd7ed9a12 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -254,6 +254,14 @@ config PPC_EARLY_DEBUG_CPM using a CPM-based serial port. This assumes that the bootwrapper has run, and set up the CPM in a particular way. +config PPC_EARLY_DEBUG_USBGECKO + bool "Early debugging through the USB Gecko adapter" + depends on GAMECUBE_COMMON + select USBGECKO_UDBG + help + Select this to enable early debugging for Nintendo GameCube/Wii + consoles via an external USB Gecko adapter. + endchoice config PPC_EARLY_DEBUG_44x_PHYSLOW diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 7bfc8ad8779..bb2465bcb32 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -66,7 +66,7 @@ src-wlib := string.S crt0.S crtsavres.S stdio.c main.c \ gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \ 4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \ cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \ - fsl-soc.c mpc8xx.c pq2.c + fsl-soc.c mpc8xx.c pq2.c ugecon.c src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \ cuboot-ebony.c cuboot-hotfoot.c treeboot-ebony.c prpmc2800.c \ ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \ @@ -76,7 +76,8 @@ src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \ cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \ virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c \ - cuboot-acadia.c cuboot-amigaone.c cuboot-kilauea.c + cuboot-acadia.c cuboot-amigaone.c cuboot-kilauea.c \ + gamecube-head.S gamecube.c wii-head.S wii.c src-boot := $(src-wlib) $(src-plat) empty.c src-boot := $(addprefix $(obj)/, $(src-boot)) @@ -254,6 +255,8 @@ image-$(CONFIG_KSI8560) += cuImage.ksi8560 image-$(CONFIG_STORCENTER) += cuImage.storcenter image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2 image-$(CONFIG_PPC_C2K) += cuImage.c2k +image-$(CONFIG_GAMECUBE) += dtbImage.gamecube +image-$(CONFIG_WII) += dtbImage.wii # Board port in arch/powerpc/platform/amigaone/Kconfig image-$(CONFIG_AMIGAONE) += cuImage.amigaone diff --git a/arch/powerpc/boot/dts/gamecube.dts b/arch/powerpc/boot/dts/gamecube.dts new file mode 100644 index 00000000000..ef3be0e58b0 --- /dev/null +++ b/arch/powerpc/boot/dts/gamecube.dts @@ -0,0 +1,114 @@ +/* + * arch/powerpc/boot/dts/gamecube.dts + * + * Nintendo GameCube platform device tree source + * Copyright (C) 2007-2009 The GameCube Linux Team + * Copyright (C) 2007,2008,2009 Albert Herranz + * + * 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. + * + */ + +/dts-v1/; + +/ { + model = "nintendo,gamecube"; + compatible = "nintendo,gamecube"; + #address-cells = <1>; + #size-cells = <1>; + + chosen { + bootargs = "root=/dev/gcnsda2 rootwait udbg-immortal"; + }; + + memory { + device_type = "memory"; + reg = <0x00000000 0x01800000>; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + PowerPC,gekko@0 { + device_type = "cpu"; + reg = <0>; + clock-frequency = <486000000>; /* 486MHz */ + bus-frequency = <162000000>; /* 162MHz core-to-bus 3x */ + timebase-frequency = <40500000>; /* 162MHz / 4 */ + i-cache-line-size = <32>; + d-cache-line-size = <32>; + i-cache-size = <32768>; + d-cache-size = <32768>; + }; + }; + + /* devices contained int the flipper chipset */ + flipper { + #address-cells = <1>; + #size-cells = <1>; + compatible = "nintendo,flipper"; + ranges = <0x0c000000 0x0c000000 0x00010000>; + interrupt-parent = <&PIC>; + + video@0c002000 { + compatible = "nintendo,flipper-vi"; + reg = <0x0c002000 0x100>; + interrupts = <8>; + }; + + processor-interface@0c003000 { + compatible = "nintendo,flipper-pi"; + reg = <0x0c003000 0x100>; + + PIC: pic { + #interrupt-cells = <1>; + compatible = "nintendo,flipper-pic"; + interrupt-controller; + }; + }; + + dsp@0c005000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "nintendo,flipper-dsp"; + reg = <0x0c005000 0x200>; + interrupts = <6>; + + memory@0 { + compatible = "nintendo,flipper-aram"; + reg = <0 0x1000000>; /* 16MB */ + }; + }; + + disk@0c006000 { + compatible = "nintendo,flipper-di"; + reg = <0x0c006000 0x40>; + interrupts = <2>; + }; + + audio@0c006c00 { + compatible = "nintendo,flipper-ai"; + reg = <0x0c006c00 0x20>; + interrupts = <6>; + }; + + gamepad-controller@0c006400 { + compatible = "nintendo,flipper-si"; + reg = <0x0c006400 0x100>; + interrupts = <3>; + }; + + /* External Interface bus */ + exi@0c006800 { + compatible = "nintendo,flipper-exi"; + reg = <0x0c006800 0x40>; + virtual-reg = <0x0c006800>; + interrupts = <4>; + }; + }; +}; + diff --git a/arch/powerpc/boot/dts/wii.dts b/arch/powerpc/boot/dts/wii.dts new file mode 100644 index 00000000000..77528c9a8db --- /dev/null +++ b/arch/powerpc/boot/dts/wii.dts @@ -0,0 +1,218 @@ +/* + * arch/powerpc/boot/dts/wii.dts + * + * Nintendo Wii platform device tree source + * Copyright (C) 2008-2009 The GameCube Linux Team + * Copyright (C) 2008,2009 Albert Herranz + * + * 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. + * + */ + +/dts-v1/; + +/* + * This is commented-out for now. + * Until a later patch is merged, the kernel can use only the first + * contiguous RAM range and will BUG() if the memreserve is outside + * that range. + */ +/*/memreserve/ 0x10000000 0x0004000;*/ /* DSP RAM */ + +/ { + model = "nintendo,wii"; + compatible = "nintendo,wii"; + #address-cells = <1>; + #size-cells = <1>; + + chosen { + bootargs = "root=/dev/mmcblk0p2 rootwait udbg-immortal"; + }; + + memory { + device_type = "memory"; + reg = <0x00000000 0x01800000 /* MEM1 24MB 1T-SRAM */ + 0x10000000 0x04000000>; /* MEM2 64MB GDDR3 */ + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + PowerPC,broadway@0 { + device_type = "cpu"; + reg = <0>; + clock-frequency = <729000000>; /* 729MHz */ + bus-frequency = <243000000>; /* 243MHz core-to-bus 3x */ + timebase-frequency = <60750000>; /* 243MHz / 4 */ + i-cache-line-size = <32>; + d-cache-line-size = <32>; + i-cache-size = <32768>; + d-cache-size = <32768>; + }; + }; + + /* devices contained in the hollywood chipset */ + hollywood { + #address-cells = <1>; + #size-cells = <1>; + compatible = "nintendo,hollywood"; + ranges = <0x0c000000 0x0c000000 0x01000000 + 0x0d000000 0x0d000000 0x00800000 + 0x0d800000 0x0d800000 0x00800000>; + interrupt-parent = <&PIC0>; + + video@0c002000 { + compatible = "nintendo,hollywood-vi", + "nintendo,flipper-vi"; + reg = <0x0c002000 0x100>; + interrupts = <8>; + }; + + processor-interface@0c003000 { + compatible = "nintendo,hollywood-pi", + "nintendo,flipper-pi"; + reg = <0x0c003000 0x100>; + + PIC0: pic0 { + #interrupt-cells = <1>; + compatible = "nintendo,flipper-pic"; + interrupt-controller; + }; + }; + + dsp@0c005000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "nintendo,hollywood-dsp", + "nintendo,flipper-dsp"; + reg = <0x0c005000 0x200>; + interrupts = <6>; + }; + + gamepad-controller@0d006400 { + compatible = "nintendo,hollywood-si", + "nintendo,flipper-si"; + reg = <0x0d006400 0x100>; + interrupts = <3>; + }; + + audio@0c006c00 { + compatible = "nintendo,hollywood-ai", + "nintendo,flipper-ai"; + reg = <0x0d006c00 0x20>; + interrupts = <6>; + }; + + /* External Interface bus */ + exi@0d006800 { + compatible = "nintendo,hollywood-exi", + "nintendo,flipper-exi"; + reg = <0x0d006800 0x40>; + virtual-reg = <0x0d006800>; + interrupts = <4>; + }; + + usb@0d040000 { + compatible = "nintendo,hollywood-usb-ehci", + "usb-ehci"; + reg = <0x0d040000 0x100>; + interrupts = <4>; + interrupt-parent = <&PIC1>; + }; + + usb@0d050000 { + compatible = "nintendo,hollywood-usb-ohci", + "usb-ohci"; + reg = <0x0d050000 0x100>; + interrupts = <5>; + interrupt-parent = <&PIC1>; + }; + + usb@0d060000 { + compatible = "nintendo,hollywood-usb-ohci", + "usb-ohci"; + reg = <0x0d060000 0x100>; + interrupts = <6>; + interrupt-parent = <&PIC1>; + }; + + sd@0d070000 { + compatible = "nintendo,hollywood-sdhci", + "sdhci"; + reg = <0x0d070000 0x200>; + interrupts = <7>; + interrupt-parent = <&PIC1>; + }; + + sdio@0d080000 { + compatible = "nintendo,hollywood-sdhci", + "sdhci"; + reg = <0x0d080000 0x200>; + interrupts = <8>; + interrupt-parent = <&PIC1>; + }; + + ipc@0d000000 { + compatible = "nintendo,hollywood-ipc"; + reg = <0x0d000000 0x10>; + interrupts = <30>; + interrupt-parent = <&PIC1>; + }; + + PIC1: pic1@0d800030 { + #interrupt-cells = <1>; + compatible = "nintendo,hollywood-pic"; + reg = <0x0d800030 0x10>; + interrupt-controller; + interrupts = <14>; + }; + + GPIO: gpio@0d8000c0 { + #gpio-cells = <2>; + compatible = "nintendo,hollywood-gpio"; + reg = <0x0d8000c0 0x40>; + gpio-controller; + + /* + * This is commented out while a standard binding + * for i2c over gpio is defined. + */ + /* + i2c-video { + #address-cells = <1>; + #size-cells = <0>; + compatible = "i2c-gpio"; + + gpios = <&GPIO 15 0 + &GPIO 14 0>; + clock-frequency = <250000>; + no-clock-stretching; + scl-is-open-drain; + sda-is-open-drain; + sda-enforce-dir; + + AVE: audio-video-encoder@70 { + compatible = "nintendo,wii-audio-video-encoder"; + reg = <0x70>; + }; + }; + */ + }; + + control@0d800100 { + compatible = "nintendo,hollywood-control"; + reg = <0x0d800100 0x300>; + }; + + disk@0d806000 { + compatible = "nintendo,hollywood-di"; + reg = <0x0d806000 0x40>; + interrupts = <2>; + }; + }; +}; + diff --git a/arch/powerpc/boot/gamecube-head.S b/arch/powerpc/boot/gamecube-head.S new file mode 100644 index 00000000000..65a9b2a3bf3 --- /dev/null +++ b/arch/powerpc/boot/gamecube-head.S @@ -0,0 +1,111 @@ +/* + * arch/powerpc/boot/gamecube-head.S + * + * Nintendo GameCube bootwrapper entry. + * Copyright (C) 2004-2009 The GameCube Linux Team + * Copyright (C) 2008,2009 Albert Herranz + * + * 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 "ppc_asm.h" + +/* + * The entry code does no assumptions regarding: + * - if the data and instruction caches are enabled or not + * - if the MMU is enabled or not + * + * We enable the caches if not already enabled, enable the MMU with an + * identity mapping scheme and jump to the start code. + */ + + .text + + .globl _zimage_start +_zimage_start: + + /* turn the MMU off */ + mfmsr 9 + rlwinm 9, 9, 0, ~((1<<4)|(1<<5)) /* MSR_DR|MSR_IR */ + bcl 20, 31, 1f +1: + mflr 8 + clrlwi 8, 8, 3 /* convert to a real address */ + addi 8, 8, _mmu_off - 1b + mtsrr0 8 + mtsrr1 9 + rfi +_mmu_off: + /* MMU disabled */ + + /* setup BATs */ + isync + li 8, 0 + mtspr 0x210, 8 /* IBAT0U */ + mtspr 0x212, 8 /* IBAT1U */ + mtspr 0x214, 8 /* IBAT2U */ + mtspr 0x216, 8 /* IBAT3U */ + mtspr 0x218, 8 /* DBAT0U */ + mtspr 0x21a, 8 /* DBAT1U */ + mtspr 0x21c, 8 /* DBAT2U */ + mtspr 0x21e, 8 /* DBAT3U */ + + li 8, 0x01ff /* first 16MiB */ + li 9, 0x0002 /* rw */ + mtspr 0x211, 9 /* IBAT0L */ + mtspr 0x210, 8 /* IBAT0U */ + mtspr 0x219, 9 /* DB |