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The Arches Evaluation board is based on the AMCC 460GT SoC chip. This board is a dual processor board with each processor providing independent resources for Rapid IO, Gigabit Ethernet, and serial communications. Each 460GT has it's own 512MB DDR2 memory, 32MB NOR FLASH, UART, EEPROM and temperature sensor, along with a shared debug port. The two 460GT's will communicate with each other via shared memory, Gigabit Ethernet and x1 PCI-Express. Signed-off-by: Victor Gallardo <vgallardo@amcc.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/*
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* Generic PowerPC 44x platform support
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*
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* Copyright 2008 IBM Corporation
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; version 2 of the License.
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*
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* This implements simple platform support for PowerPC 44x chips. This is
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* mostly used for eval boards or other simple and "generic" 44x boards. If
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* your board has custom functions or hardware, then you will likely want to
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* implement your own board.c file to accommodate it.
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*/
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#include <asm/machdep.h>
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#include <asm/pci-bridge.h>
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#include <asm/ppc4xx.h>
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#include <asm/prom.h>
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#include <asm/time.h>
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#include <asm/udbg.h>
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#include <asm/uic.h>
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#include <linux/init.h>
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#include <linux/of_platform.h>
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static __initdata struct of_device_id ppc44x_of_bus[] = {
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{ .compatible = "ibm,plb4", },
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{ .compatible = "ibm,opb", },
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{ .compatible = "ibm,ebc", },
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{ .compatible = "simple-bus", },
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{},
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};
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static int __init ppc44x_device_probe(void)
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{
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of_platform_bus_probe(NULL, ppc44x_of_bus, NULL);
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return 0;
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}
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machine_device_initcall(ppc44x_simple, ppc44x_device_probe);
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/* This is the list of boards that can be supported by this simple
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* platform code. This does _not_ mean the boards are compatible,
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* as they most certainly are not from a device tree perspective.
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* However, their differences are handled by the device tree and the
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* drivers and therefore they don't need custom board support files.
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*
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* Again, if your board needs to do things differently then create a
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* board.c file for it rather than adding it to this list.
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*/
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static char *board[] __initdata = {
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"amcc,arches",
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"amcc,bamboo",
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"amcc,canyonlands",
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"amcc,glacier",
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"ibm,ebony",
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"amcc,katmai",
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"amcc,rainier",
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"amcc,sequoia",
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"amcc,taishan",
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"amcc,yosemite"
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};
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static int __init ppc44x_probe(void)
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{
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unsigned long root = of_get_flat_dt_root();
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int i = 0;
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for (i = 0; i < ARRAY_SIZE(board); i++) {
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if (of_flat_dt_is_compatible(root, board[i])) {
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ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
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return 1;
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}
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}
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return 0;
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}
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define_machine(ppc44x_simple) {
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.name = "PowerPC 44x Platform",
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.probe = ppc44x_probe,
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.progress = udbg_progress,
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.init_IRQ = uic_init_tree,
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.get_irq = uic_get_irq,
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.restart = ppc4xx_reset_system,
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.calibrate_decr = generic_calibrate_decr,
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};
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