| /* |
| * Support for 'mpc5200-simple-platform' compatible boards. |
| * |
| * Written by Marian Balakowicz <m8@semihalf.com> |
| * Copyright (C) 2007 Semihalf |
| * |
| * 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. |
| * |
| * Description: |
| * This code implements support for a simple MPC52xx based boards which |
| * do not need a custom platform specific setup. Such boards are |
| * supported assuming the following: |
| * |
| * - GPIO pins are configured by the firmware, |
| * - CDM configuration (clocking) is setup correctly by firmware, |
| * - if the 'fsl,has-wdt' property is present in one of the |
| * gpt nodes, then it is safe to use such gpt to reset the board, |
| * - PCI is supported if enabled in the kernel configuration |
| * and if there is a PCI bus node defined in the device tree. |
| * |
| * Boards that are compatible with this generic platform support |
| * are listed in a 'board' table. |
| */ |
| |
| #undef DEBUG |
| #include <asm/time.h> |
| #include <asm/prom.h> |
| #include <asm/machdep.h> |
| #include <asm/mpc52xx.h> |
| |
| /* |
| * Setup the architecture |
| */ |
| static void __init mpc5200_simple_setup_arch(void) |
| { |
| if (ppc_md.progress) |
| ppc_md.progress("mpc5200_simple_setup_arch()", 0); |
| |
| /* Map important registers from the internal memory map */ |
| mpc52xx_map_common_devices(); |
| |
| /* Some mpc5200 & mpc5200b related configuration */ |
| mpc5200_setup_xlb_arbiter(); |
| |
| mpc52xx_setup_pci(); |
| } |
| |
| /* list of the supported boards */ |
| static char *board[] __initdata = { |
| "promess,motionpro", |
| "phytec,pcm030", |
| "schindler,cm5200", |
| "tqc,tqm5200", |
| NULL |
| }; |
| |
| /* |
| * Called very early, MMU is off, device-tree isn't unflattened |
| */ |
| static int __init mpc5200_simple_probe(void) |
| { |
| unsigned long node = of_get_flat_dt_root(); |
| int i = 0; |
| |
| while (board[i]) { |
| if (of_flat_dt_is_compatible(node, board[i])) |
| break; |
| i++; |
| } |
| |
| return (board[i] != NULL); |
| } |
| |
| define_machine(mpc5200_simple_platform) { |
| .name = "mpc5200-simple-platform", |
| .probe = mpc5200_simple_probe, |
| .setup_arch = mpc5200_simple_setup_arch, |
| .init = mpc52xx_declare_of_platform_devices, |
| .init_IRQ = mpc52xx_init_irq, |
| .get_irq = mpc52xx_get_irq, |
| .restart = mpc52xx_restart, |
| .calibrate_decr = generic_calibrate_decr, |
| }; |
