projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| fb180322 JR |
1 | /* |
| 2 | * Copyright (C) 2007,2008 Freescale Semiconductor, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * Author: John Rigby <jrigby@freescale.com> | |
| 5 | * | |
| 6 | * Description: | |
| 7 | * MPC512x Shared code | |
| 8 | * | |
| 9 | * This is free software; you can redistribute it and/or modify it | |
| 10 | * under the terms of the GNU General Public License as published by | |
| 11 | * the Free Software Foundation; either version 2 of the License, or | |
| 12 | * (at your option) any later version. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/kernel.h> | |
| 16 | #include <linux/io.h> | |
| 17 | #include <linux/irq.h> | |
| 18 | #include <linux/of_platform.h> | |
| 19 | ||
| 20 | #include <asm/machdep.h> | |
| 21 | #include <asm/ipic.h> | |
| 22 | #include <asm/prom.h> | |
| 23 | #include <asm/time.h> | |
| a8dbceb7 | 24 | #include <asm/mpc5121.h> |
| fb180322 JR |
25 | |
| 26 | #include "mpc512x.h" | |
| 27 | ||
| a8dbceb7 AG |
28 | static struct mpc512x_reset_module __iomem *reset_module_base; |
| 29 | ||
| 30 | static void __init mpc512x_restart_init(void) | |
| 31 | { | |
| 32 | struct device_node *np; | |
| 33 | ||
| 34 | np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-reset"); | |
| 35 | if (!np) | |
| 36 | return; | |
| 37 | ||
| 38 | reset_module_base = of_iomap(np, 0); | |
| 39 | of_node_put(np); | |
| 40 | } | |
| 41 | ||
| 42 | void mpc512x_restart(char *cmd) | |
| 43 | { | |
| 44 | if (reset_module_base) { | |
| 45 | /* Enable software reset "RSTE" */ | |
| 46 | out_be32(&reset_module_base->rpr, 0x52535445); | |
| 47 | /* Set software hard reset */ | |
| 48 | out_be32(&reset_module_base->rcr, 0x2); | |
| 49 | } else { | |
| 50 | pr_err("Restart module not mapped.\n"); | |
| 51 | } | |
| 52 | for (;;) | |
| 53 | ; | |
| 54 | } | |
| 55 | ||
| fb180322 JR |
56 | void __init mpc512x_init_IRQ(void) |
| 57 | { | |
| 58 | struct device_node *np; | |
| 59 | ||
| 60 | np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-ipic"); | |
| 61 | if (!np) | |
| 62 | return; | |
| 63 | ||
| 64 | ipic_init(np, 0); | |
| 65 | of_node_put(np); | |
| 66 | ||
| 67 | /* | |
| 68 | * Initialize the default interrupt mapping priorities, | |
| 69 | * in case the boot rom changed something on us. | |
| 70 | */ | |
| 71 | ipic_set_default_priority(); | |
| 72 | } | |
| 73 | ||
| 74 | /* | |
| 75 | * Nodes to do bus probe on, soc and localbus | |
| 76 | */ | |
| 77 | static struct of_device_id __initdata of_bus_ids[] = { | |
| 78 | { .compatible = "fsl,mpc5121-immr", }, | |
| 79 | { .compatible = "fsl,mpc5121-localbus", }, | |
| 80 | {}, | |
| 81 | }; | |
| 82 | ||
| 83 | void __init mpc512x_declare_of_platform_devices(void) | |
| 84 | { | |
| 5b2b6255 AG |
85 | struct device_node *np; |
| 86 | ||
| fb180322 JR |
87 | if (of_platform_bus_probe(NULL, of_bus_ids, NULL)) |
| 88 | printk(KERN_ERR __FILE__ ": " | |
| 89 | "Error while probing of_platform bus\n"); | |
| 5b2b6255 AG |
90 | |
| 91 | np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-nfc"); | |
| 92 | if (np) { | |
| 93 | of_platform_device_create(np, NULL, NULL); | |
| 94 | of_node_put(np); | |
| 95 | } | |
| fb180322 JR |
96 | } |
| 97 | ||
| 284ed66f AG |
98 | void __init mpc512x_init(void) |
| 99 | { | |
| 100 | mpc512x_declare_of_platform_devices(); | |
| 101 | mpc5121_clk_init(); | |
| a8dbceb7 | 102 | mpc512x_restart_init(); |
| 284ed66f | 103 | } |