0cdf50a7c6
This patch adds support for the ESTeem 195E Hotfoot SBC. There are several variants of the SBC deployed, single/dual ethernet+serial, and also 4MB/8MB flash variations. In the interest of having a single kernel image boot on all boards, the cuboot shim detects the differences and mangles the DTS tree appropriately. With the exception of the CF interface that was never populated on production boards, this code/DTS supports all boardpop options. Signed-off-by: Solomon Peachy <solomon@linux-wlan.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
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* Generic PowerPC 40x 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 ppc40x_of_bus[] = {
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{ .compatible = "ibm,plb3", },
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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 ppc40x_device_probe(void)
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{
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of_platform_bus_probe(NULL, ppc40x_of_bus, NULL);
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return 0;
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}
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machine_device_initcall(ppc40x_simple, ppc40x_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,acadia",
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"amcc,haleakala",
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"amcc,kilauea",
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"amcc,makalu",
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"est,hotfoot"
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};
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static int __init ppc40x_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_set_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(ppc40x_simple) {
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.name = "PowerPC 40x Platform",
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.probe = ppc40x_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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