127 lines
3.0 KiB
C
127 lines
3.0 KiB
C
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/*
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* arch/powerpc/platforms/83xx/mpc837x_rdb.c
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*
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* Copyright (C) 2007 Freescale Semicondutor, Inc. All rights reserved.
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*
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* MPC837x RDB board specific routines
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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; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/pci.h>
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#include <linux/of_platform.h>
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#include <asm/time.h>
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#include <asm/ipic.h>
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#include <asm/udbg.h>
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#include <sysdev/fsl_soc.h>
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#include <sysdev/fsl_pci.h>
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#include "mpc83xx.h"
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static void mpc837x_rdb_sd_cfg(void)
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{
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void __iomem *im;
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im = ioremap(get_immrbase(), 0x1000);
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if (!im) {
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WARN_ON(1);
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return;
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}
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/*
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* On RDB boards (in contrast to MDS) USBB pins are used for SD only,
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* so we can safely mux them away from the USB block.
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*/
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clrsetbits_be32(im + MPC83XX_SICRL_OFFS, MPC837X_SICRL_USBB_MASK,
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MPC837X_SICRL_SD);
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clrsetbits_be32(im + MPC83XX_SICRH_OFFS, MPC837X_SICRH_SPI_MASK,
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MPC837X_SICRH_SD);
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iounmap(im);
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}
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/* ************************************************************************
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*
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* Setup the architecture
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*
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*/
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static void __init mpc837x_rdb_setup_arch(void)
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{
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#ifdef CONFIG_PCI
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struct device_node *np;
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#endif
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if (ppc_md.progress)
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ppc_md.progress("mpc837x_rdb_setup_arch()", 0);
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#ifdef CONFIG_PCI
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for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
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mpc83xx_add_bridge(np);
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for_each_compatible_node(np, "pci", "fsl,mpc8314-pcie")
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mpc83xx_add_bridge(np);
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#endif
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mpc837x_usb_cfg();
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mpc837x_rdb_sd_cfg();
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}
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static struct of_device_id mpc837x_ids[] = {
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{ .type = "soc", },
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{ .compatible = "soc", },
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{ .compatible = "simple-bus", },
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{ .compatible = "gianfar", },
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{},
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};
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static int __init mpc837x_declare_of_platform_devices(void)
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{
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/* Publish of_device */
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of_platform_bus_probe(NULL, mpc837x_ids, NULL);
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return 0;
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}
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machine_device_initcall(mpc837x_rdb, mpc837x_declare_of_platform_devices);
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static void __init mpc837x_rdb_init_IRQ(void)
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{
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struct device_node *np;
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np = of_find_compatible_node(NULL, NULL, "fsl,ipic");
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if (!np)
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return;
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ipic_init(np, 0);
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/* Initialize the default interrupt mapping priorities,
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* in case the boot rom changed something on us.
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*/
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ipic_set_default_priority();
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}
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/*
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* Called very early, MMU is off, device-tree isn't unflattened
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*/
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static int __init mpc837x_rdb_probe(void)
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{
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unsigned long root = of_get_flat_dt_root();
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return of_flat_dt_is_compatible(root, "fsl,mpc8377rdb") ||
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of_flat_dt_is_compatible(root, "fsl,mpc8378rdb") ||
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of_flat_dt_is_compatible(root, "fsl,mpc8379rdb") ||
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of_flat_dt_is_compatible(root, "fsl,mpc8377wlan");
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}
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define_machine(mpc837x_rdb) {
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.name = "MPC837x RDB/WLAN",
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.probe = mpc837x_rdb_probe,
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.setup_arch = mpc837x_rdb_setup_arch,
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.init_IRQ = mpc837x_rdb_init_IRQ,
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.get_irq = ipic_get_irq,
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.restart = mpc83xx_restart,
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.time_init = mpc83xx_time_init,
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.calibrate_decr = generic_calibrate_decr,
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.progress = udbg_progress,
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};
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