Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved. |
| 3 | * |
| 4 | * Author: Li Yang <LeoLi@freescale.com> |
| 5 | * Yin Olivia <Hong-hua.Yin@freescale.com> |
| 6 | * |
| 7 | * Description: |
Kumar Gala | 322d05a | 2007-02-17 10:13:56 -0600 | [diff] [blame] | 8 | * MPC8360E MDS board specific routines. |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 9 | * |
| 10 | * Changelog: |
| 11 | * Jun 21, 2006 Initial version |
| 12 | * |
Kumar Gala | 322d05a | 2007-02-17 10:13:56 -0600 | [diff] [blame] | 13 | * This program is free software; you can redistribute it and/or modify it |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 14 | * under the terms of the GNU General Public License as published by the |
| 15 | * Free Software Foundation; either version 2 of the License, or (at your |
| 16 | * option) any later version. |
| 17 | */ |
| 18 | |
| 19 | #include <linux/stddef.h> |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/errno.h> |
| 23 | #include <linux/reboot.h> |
| 24 | #include <linux/pci.h> |
| 25 | #include <linux/kdev_t.h> |
| 26 | #include <linux/major.h> |
| 27 | #include <linux/console.h> |
| 28 | #include <linux/delay.h> |
| 29 | #include <linux/seq_file.h> |
| 30 | #include <linux/root_dev.h> |
| 31 | #include <linux/initrd.h> |
| 32 | |
Li Yang | f5a37b0 | 2006-10-11 19:04:22 +0800 | [diff] [blame] | 33 | #include <asm/of_device.h> |
Li Yang | 3b6eb6a | 2007-01-30 13:33:01 +0800 | [diff] [blame] | 34 | #include <asm/of_platform.h> |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 35 | #include <asm/system.h> |
| 36 | #include <asm/atomic.h> |
| 37 | #include <asm/time.h> |
| 38 | #include <asm/io.h> |
| 39 | #include <asm/machdep.h> |
| 40 | #include <asm/ipic.h> |
| 41 | #include <asm/bootinfo.h> |
| 42 | #include <asm/irq.h> |
| 43 | #include <asm/prom.h> |
| 44 | #include <asm/udbg.h> |
| 45 | #include <sysdev/fsl_soc.h> |
| 46 | #include <asm/qe.h> |
| 47 | #include <asm/qe_ic.h> |
| 48 | |
| 49 | #include "mpc83xx.h" |
| 50 | |
| 51 | #undef DEBUG |
| 52 | #ifdef DEBUG |
| 53 | #define DBG(fmt...) udbg_printf(fmt) |
| 54 | #else |
| 55 | #define DBG(fmt...) |
| 56 | #endif |
| 57 | |
| 58 | #ifndef CONFIG_PCI |
| 59 | unsigned long isa_io_base = 0; |
| 60 | unsigned long isa_mem_base = 0; |
| 61 | #endif |
| 62 | |
| 63 | static u8 *bcsr_regs = NULL; |
| 64 | |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 65 | /* ************************************************************************ |
| 66 | * |
| 67 | * Setup the architecture |
| 68 | * |
| 69 | */ |
Kumar Gala | 322d05a | 2007-02-17 10:13:56 -0600 | [diff] [blame] | 70 | static void __init mpc836x_mds_setup_arch(void) |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 71 | { |
| 72 | struct device_node *np; |
| 73 | |
| 74 | if (ppc_md.progress) |
Kumar Gala | 322d05a | 2007-02-17 10:13:56 -0600 | [diff] [blame] | 75 | ppc_md.progress("mpc836x_mds_setup_arch()", 0); |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 76 | |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 77 | /* Map BCSR area */ |
| 78 | np = of_find_node_by_name(NULL, "bcsr"); |
| 79 | if (np != 0) { |
| 80 | struct resource res; |
| 81 | |
| 82 | of_address_to_resource(np, 0, &res); |
| 83 | bcsr_regs = ioremap(res.start, res.end - res.start +1); |
| 84 | of_node_put(np); |
| 85 | } |
| 86 | |
| 87 | #ifdef CONFIG_PCI |
| 88 | for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) |
| 89 | add_bridge(np); |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 90 | ppc_md.pci_exclude_device = mpc83xx_exclude_device; |
| 91 | #endif |
| 92 | |
| 93 | #ifdef CONFIG_QUICC_ENGINE |
| 94 | qe_reset(); |
| 95 | |
Li Yang | 06cd939 | 2007-01-17 14:42:22 +0800 | [diff] [blame] | 96 | if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) { |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 97 | par_io_init(np); |
| 98 | of_node_put(np); |
| 99 | |
| 100 | for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;) |
| 101 | par_io_of_config(np); |
| 102 | } |
| 103 | |
| 104 | if ((np = of_find_compatible_node(NULL, "network", "ucc_geth")) |
| 105 | != NULL){ |
| 106 | /* Reset the Ethernet PHY */ |
| 107 | bcsr_regs[9] &= ~0x20; |
| 108 | udelay(1000); |
| 109 | bcsr_regs[9] |= 0x20; |
| 110 | iounmap(bcsr_regs); |
| 111 | of_node_put(np); |
| 112 | } |
| 113 | |
| 114 | #endif /* CONFIG_QUICC_ENGINE */ |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 115 | } |
| 116 | |
Kumar Gala | f7993ed | 2007-02-17 09:56:49 -0600 | [diff] [blame] | 117 | static struct of_device_id mpc836x_ids[] = { |
| 118 | { .type = "soc", }, |
| 119 | { .compatible = "soc", }, |
| 120 | { .type = "qe", }, |
| 121 | {}, |
| 122 | }; |
Li Yang | f5a37b0 | 2006-10-11 19:04:22 +0800 | [diff] [blame] | 123 | |
Kumar Gala | f7993ed | 2007-02-17 09:56:49 -0600 | [diff] [blame] | 124 | static int __init mpc836x_declare_of_platform_devices(void) |
| 125 | { |
Kumar Gala | 322d05a | 2007-02-17 10:13:56 -0600 | [diff] [blame] | 126 | if (!machine_is(mpc836x_mds)) |
Kumar Gala | 336c3c2 | 2007-02-17 09:10:44 -0600 | [diff] [blame] | 127 | return 0; |
| 128 | |
Kumar Gala | f7993ed | 2007-02-17 09:56:49 -0600 | [diff] [blame] | 129 | /* Publish the QE devices */ |
| 130 | of_platform_bus_probe(NULL, mpc836x_ids, NULL); |
Li Yang | f5a37b0 | 2006-10-11 19:04:22 +0800 | [diff] [blame] | 131 | |
| 132 | return 0; |
| 133 | } |
Kumar Gala | f7993ed | 2007-02-17 09:56:49 -0600 | [diff] [blame] | 134 | device_initcall(mpc836x_declare_of_platform_devices); |
Li Yang | f5a37b0 | 2006-10-11 19:04:22 +0800 | [diff] [blame] | 135 | |
Kumar Gala | 322d05a | 2007-02-17 10:13:56 -0600 | [diff] [blame] | 136 | static void __init mpc836x_mds_init_IRQ(void) |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 137 | { |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 138 | struct device_node *np; |
| 139 | |
| 140 | np = of_find_node_by_type(NULL, "ipic"); |
| 141 | if (!np) |
| 142 | return; |
| 143 | |
| 144 | ipic_init(np, 0); |
| 145 | |
| 146 | /* Initialize the default interrupt mapping priorities, |
| 147 | * in case the boot rom changed something on us. |
| 148 | */ |
| 149 | ipic_set_default_priority(); |
| 150 | of_node_put(np); |
| 151 | |
| 152 | #ifdef CONFIG_QUICC_ENGINE |
| 153 | np = of_find_node_by_type(NULL, "qeic"); |
| 154 | if (!np) |
| 155 | return; |
| 156 | |
| 157 | qe_ic_init(np, 0); |
| 158 | of_node_put(np); |
| 159 | #endif /* CONFIG_QUICC_ENGINE */ |
| 160 | } |
| 161 | |
| 162 | #if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374) |
| 163 | extern ulong ds1374_get_rtc_time(void); |
| 164 | extern int ds1374_set_rtc_time(ulong); |
| 165 | |
| 166 | static int __init mpc8360_rtc_hookup(void) |
| 167 | { |
| 168 | struct timespec tv; |
| 169 | |
Kumar Gala | 322d05a | 2007-02-17 10:13:56 -0600 | [diff] [blame] | 170 | if (!machine_is(mpc836x_mds)) |
Kumar Gala | 336c3c2 | 2007-02-17 09:10:44 -0600 | [diff] [blame] | 171 | return 0; |
| 172 | |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 173 | ppc_md.get_rtc_time = ds1374_get_rtc_time; |
| 174 | ppc_md.set_rtc_time = ds1374_set_rtc_time; |
| 175 | |
| 176 | tv.tv_nsec = 0; |
| 177 | tv.tv_sec = (ppc_md.get_rtc_time) (); |
| 178 | do_settimeofday(&tv); |
| 179 | |
| 180 | return 0; |
| 181 | } |
| 182 | |
| 183 | late_initcall(mpc8360_rtc_hookup); |
| 184 | #endif |
| 185 | |
| 186 | /* |
| 187 | * Called very early, MMU is off, device-tree isn't unflattened |
| 188 | */ |
Kumar Gala | 322d05a | 2007-02-17 10:13:56 -0600 | [diff] [blame] | 189 | static int __init mpc836x_mds_probe(void) |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 190 | { |
Kumar Gala | 336c3c2 | 2007-02-17 09:10:44 -0600 | [diff] [blame] | 191 | unsigned long root = of_get_flat_dt_root(); |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 192 | |
Kumar Gala | 336c3c2 | 2007-02-17 09:10:44 -0600 | [diff] [blame] | 193 | return of_flat_dt_is_compatible(root, "MPC836xMDS"); |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 194 | } |
| 195 | |
Kumar Gala | 322d05a | 2007-02-17 10:13:56 -0600 | [diff] [blame] | 196 | define_machine(mpc836x_mds) { |
| 197 | .name = "MPC836x MDS", |
| 198 | .probe = mpc836x_mds_probe, |
| 199 | .setup_arch = mpc836x_mds_setup_arch, |
| 200 | .init_IRQ = mpc836x_mds_init_IRQ, |
| 201 | .get_irq = ipic_get_irq, |
| 202 | .restart = mpc83xx_restart, |
| 203 | .time_init = mpc83xx_time_init, |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 204 | .calibrate_decr = generic_calibrate_decr, |
Kumar Gala | 322d05a | 2007-02-17 10:13:56 -0600 | [diff] [blame] | 205 | .progress = udbg_progress, |
Li Yang | bc141de | 2006-10-03 23:17:51 -0500 | [diff] [blame] | 206 | }; |