Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved. |
| 3 | * |
| 4 | * Description: |
| 5 | * MPC832xE MDS board specific routines. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License as published by the |
| 9 | * Free Software Foundation; either version 2 of the License, or (at your |
| 10 | * option) any later version. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/stddef.h> |
| 14 | #include <linux/kernel.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/errno.h> |
| 17 | #include <linux/reboot.h> |
| 18 | #include <linux/pci.h> |
| 19 | #include <linux/kdev_t.h> |
| 20 | #include <linux/major.h> |
| 21 | #include <linux/console.h> |
| 22 | #include <linux/delay.h> |
| 23 | #include <linux/seq_file.h> |
| 24 | #include <linux/root_dev.h> |
| 25 | #include <linux/initrd.h> |
Jon Loeliger | 882407b | 2007-11-06 12:11:13 -0600 | [diff] [blame] | 26 | #include <linux/of_platform.h> |
| 27 | #include <linux/of_device.h> |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 28 | |
| 29 | #include <asm/system.h> |
Arun Sharma | 6006349 | 2011-07-26 16:09:06 -0700 | [diff] [blame] | 30 | #include <linux/atomic.h> |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 31 | #include <asm/time.h> |
| 32 | #include <asm/io.h> |
| 33 | #include <asm/machdep.h> |
| 34 | #include <asm/ipic.h> |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 35 | #include <asm/irq.h> |
| 36 | #include <asm/prom.h> |
| 37 | #include <asm/udbg.h> |
| 38 | #include <sysdev/fsl_soc.h> |
John Rigby | 76fe1ff | 2008-06-26 11:07:57 -0600 | [diff] [blame] | 39 | #include <sysdev/fsl_pci.h> |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 40 | #include <asm/qe.h> |
| 41 | #include <asm/qe_ic.h> |
| 42 | |
| 43 | #include "mpc83xx.h" |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 44 | |
| 45 | #undef DEBUG |
| 46 | #ifdef DEBUG |
| 47 | #define DBG(fmt...) udbg_printf(fmt) |
| 48 | #else |
| 49 | #define DBG(fmt...) |
| 50 | #endif |
| 51 | |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 52 | /* ************************************************************************ |
| 53 | * |
| 54 | * Setup the architecture |
| 55 | * |
| 56 | */ |
| 57 | static void __init mpc832x_sys_setup_arch(void) |
| 58 | { |
| 59 | struct device_node *np; |
Anton Vorontsov | 81b36a0 | 2008-12-05 18:48:07 +0300 | [diff] [blame] | 60 | u8 __iomem *bcsr_regs = NULL; |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 61 | |
| 62 | if (ppc_md.progress) |
| 63 | ppc_md.progress("mpc832x_sys_setup_arch()", 0); |
| 64 | |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 65 | /* Map BCSR area */ |
| 66 | np = of_find_node_by_name(NULL, "bcsr"); |
Anton Vorontsov | 81b36a0 | 2008-12-05 18:48:07 +0300 | [diff] [blame] | 67 | if (np) { |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 68 | struct resource res; |
| 69 | |
| 70 | of_address_to_resource(np, 0, &res); |
Joe Perches | 28f65c1 | 2011-06-09 09:13:32 -0700 | [diff] [blame] | 71 | bcsr_regs = ioremap(res.start, resource_size(&res)); |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 72 | of_node_put(np); |
| 73 | } |
| 74 | |
Dmitry Eremin-Solenikov | bede480 | 2011-11-17 18:48:48 +0400 | [diff] [blame] | 75 | mpc83xx_setup_pci(); |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 76 | |
| 77 | #ifdef CONFIG_QUICC_ENGINE |
| 78 | qe_reset(); |
| 79 | |
Li Yang | 06cd939 | 2007-01-17 14:42:22 +0800 | [diff] [blame] | 80 | if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) { |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 81 | par_io_init(np); |
| 82 | of_node_put(np); |
| 83 | |
| 84 | for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;) |
| 85 | par_io_of_config(np); |
| 86 | } |
| 87 | |
| 88 | if ((np = of_find_compatible_node(NULL, "network", "ucc_geth")) |
| 89 | != NULL){ |
Kim Phillips | d8ecbb9 | 2007-11-19 19:04:43 -0600 | [diff] [blame] | 90 | /* Reset the Ethernet PHYs */ |
| 91 | #define BCSR8_FETH_RST 0x50 |
Anton Vorontsov | 81b36a0 | 2008-12-05 18:48:07 +0300 | [diff] [blame] | 92 | clrbits8(&bcsr_regs[8], BCSR8_FETH_RST); |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 93 | udelay(1000); |
Anton Vorontsov | 81b36a0 | 2008-12-05 18:48:07 +0300 | [diff] [blame] | 94 | setbits8(&bcsr_regs[8], BCSR8_FETH_RST); |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 95 | iounmap(bcsr_regs); |
| 96 | of_node_put(np); |
| 97 | } |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 98 | #endif /* CONFIG_QUICC_ENGINE */ |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 99 | } |
| 100 | |
Dmitry Eremin-Solenikov | 7669d58 | 2011-11-17 18:48:47 +0400 | [diff] [blame] | 101 | machine_device_initcall(mpc832x_mds, mpc83xx_declare_of_platform_devices); |
Kim Phillips | 8746ed3 | 2006-11-21 18:19:42 -0600 | [diff] [blame] | 102 | |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 103 | /* |
| 104 | * Called very early, MMU is off, device-tree isn't unflattened |
| 105 | */ |
| 106 | static int __init mpc832x_sys_probe(void) |
| 107 | { |
Kumar Gala | 336c3c2 | 2007-02-17 09:10:44 -0600 | [diff] [blame] | 108 | unsigned long root = of_get_flat_dt_root(); |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 109 | |
Kumar Gala | 336c3c2 | 2007-02-17 09:10:44 -0600 | [diff] [blame] | 110 | return of_flat_dt_is_compatible(root, "MPC832xMDS"); |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | define_machine(mpc832x_mds) { |
| 114 | .name = "MPC832x MDS", |
| 115 | .probe = mpc832x_sys_probe, |
| 116 | .setup_arch = mpc832x_sys_setup_arch, |
Dmitry Eremin-Solenikov | d4fb5eb | 2011-07-22 23:55:42 +0400 | [diff] [blame] | 117 | .init_IRQ = mpc83xx_ipic_and_qe_init_IRQ, |
Kim Phillips | 9020fc9 | 2006-10-02 20:10:30 -0500 | [diff] [blame] | 118 | .get_irq = ipic_get_irq, |
| 119 | .restart = mpc83xx_restart, |
| 120 | .time_init = mpc83xx_time_init, |
| 121 | .calibrate_decr = generic_calibrate_decr, |
| 122 | .progress = udbg_progress, |
| 123 | }; |